Proper sharpening of strip saws and divorce. How to cut on a pillar for…

Rules for sharpening tape saw at home

The log is installed in guide rollers with its fixation in the clamps. The amount of material received is calculated based on the diameter of the log. The correct calculation of the type and amount of material also affects its quality.

An experienced sawingman, looking at the log, is already able to determine all the parameters of the future material, immediately find the lumpy part and the top of the log. The diameter of the comal part is greater than the vertices. It depends on the accuracy of the calculation, what thickness it will turn out.

Log diameter must be measured from the top. Further actions of the master:

  • There are practically no perfectly even trunks. Therefore, you need to carefully examine all the bends, bulges.
  • Turn the log so that the waste in the form.
  • When installing a log, it is necessary to make sure of its free movement in the guides.
  • On the pylorama line, set dimensions in diameter of logs plus maximum bulge height.
  • The size of the bulge is determined from the difference in the diameter of the comal part and the top.
  • The size of the highest part is measured with a roulette, a countdown of the size of the material begins from the result.
  • The master is obliged to take into account the size for cut 2-5 mm.

Turn the logs

When approaching the remaining height of the log to the desired size, it is turned over. If you need to get a beam with a thickness of 150 mm, a sawn width and the remainder of the height of the log should be slightly larger than this size, taking into account the hump.

When the log is turned upside down, the remainder of the height after the cut is made, and the material is calculated before using this size completely.

  • The remainder of the height of the log after drinking. 270 mm. Purpose. get a beam with a thickness of 150 mm: 270–150 = 120 mm.
  • From 120 mm, it is necessary to get a block 50 mm: 120–60–3 = 57 mm. A value of 3 mm is given for cut.
  • Tesina 25 mm: 67–25–3 = 40 mm.
  • Podgarchirik 25 mm: 40–25–3 = 12 mm.
  • Humps 12 mm.

Further receipt of lumber is achieved by turning a log at an angle of 90 degrees and similar calculations. One of the common errors. the allowance for cuts is not taken into account or more than a number of times is added. The master needs to be careful.

Wrestling of tape saws

When working, the tool inevitably decreases the quality of the cutting edge of the teeth. Therefore, proper sharpening and wiring of strip saws is an integral part of the cutting work process. Remember, the divorce should be carried out before sharpening, and not after.

Wiring is the process of bending teeth to the sides to reduce friction and clamp the canvas. There are three types of wiring:

  • cleanser. it is necessary to leave every third tooth in its original form. It is used in tools for cutting especially hard alloys and materials;
  • Classic. teeth must bend left and right strictly alternately;
  • wavy. each tooth is bent to a certain value, as a result, a wave is formed. This type of wiring is the most difficult.

It must be remembered that during a divorce, two.thirds or a third from the top of the tooth are bent, and not the whole tooth.

Recommended values ​​of divorce by manufacturers about 0.3 to 0.7 millimeters. Wiring is carried out using a divorce special tool.

Preparation of the device for work

During the constant use of the tool, it is inevitable to lower the quality of the cutting edge. It is blunting, and the width of dentist is reduced. Based on this, the sharpening of the saw on wood and its wiring are the necessary components of the maintenance of the tape.saw machine.

It should be noted that the wiring of the teeth should be carried out before they are sharpened, and not vice versa.

Warring the tool

Wiring is the process of bending the cloves on the sides. This operation is needed so that the saw blade does not clamp in the workpiece, as well as to reduce friction during operation.

  • With the classic method, cloves bend left-right in strict priority.
  • With the cleaning method, each third of the teeth remains in the original position. It is optimal for devices designed for cutting especially solid varieties of wood.
  • With wavy wiring, each tooth has its own separate bending. In this case, the profile of the canvas acquires the type of wave. This method is most complex.

note! When carrying out the wiring, not the entire clove should bend, but only a third or two.thirds from the top. Producer companies advise to carry out the operation so that the bending range will fit in 0.3-0.7 millimeters. Work is done using a specialized diluting tool.

Sharpening of the saw

Before sharpening a saw disk or a strip tool, keep in mind that more than 80% of the incidents with damage to devices (including their gap) occur due to non.compliance with the norms of work.

  • The need for the operation is determined visually. In this case, you should pay attention to the condition of the cloves and the quality of the walls of the cut (for example, their increased roughness).
  • Circles for the point of tape tools are elected based on the degree of hardness of cloves. Corundine discs are needed to work with instrumental steel devices. Bimetallic sharpening saws on borazon or diamond circles.
  • The shape of the sandpaper for tape devices must be selected, starting from their parameters. Culled circles cups, profile, plate, flat.
  • Before the operation, it is necessary to turn the saw and let it hang in this position for about 10-12 hours.

Read also: What tool is measured the distance

Sharpage of the saw on wood should take into account the following provisions.

  • Removing metal in the profile of the teeth should be uniform.
  • Excessive pressure of the sharpening device must be suppressed. He can lead to anneal.
  • The profile of the canvas and the height of the teeth should remain unchanged.
  • Liquid cooling must be ensured during the operation.
  • Zausenets on the teeth should not arise.

Pay attention! Theoretical instructions for sharpening tape saws on wood notify that it should be carried out either on the front side of the teeth, or both on the back and front. In real life, most experts and amateur masters perform the operation only on the back side, This is more convenient.

Taking methods

In the photo automatic full.profile sharpening.

You can prepare the tool for work using special sharpening devices (for example, machines with different in material and shape in circles) or manually. Before you properly sharpen the saw on the tree, you should study the main methods of conducting this operation.

The first method is full.profile sharpening.

  • It is the highest quality, the operation is carried out on the automatic machine.
  • The elbore emery selected exactly in shape passes the entire surface of the interdental cavity at the same time with the accompanying planes of neighboring teeth in one motion.
  • The creation of angles at the tops of the teeth is completely excluded.
  • The relative minus of such a drag is the need to have at your disposal the corresponding number of circles for paintings with different profiles.

The second method is the sharpening of the faces of the teeth.

You can do this manually and using a professional machine.

  • Having chosen the machine, it is necessary to decide on the applied circle. As a rule, it is flat. Specialized sharpening devices should only be resorted to when there is a lot of such work.
  • In domestic conditions, sharpening is best done with your own hands. on ordinary mechanical emery or with the help of engraver. When carrying out the operation, do not forget about personal protection and use gloves, mask or special glasses.

Which equipment to choose for sharpening saws?

It has been proved: over 80% of cases of the rupture of the tool occurs due to non-compliance with the rules for sharpening tape saws. The need for manipulation is determined visually. by the type of teeth or the condition of the walls of the cut (an increase in surface roughness).

Circles for sharpening tape saws are selected depending on the hardness of the teeth. To sharpen tools made of instrumental steel, they turn to corundum circles. Bimetallic saws require diamond or borazon samples. The shape of the sharpening circle for strip saws should be determined based on the parameters of the tool. It can be profile, cup, flat, plate.

Before starting work, it is recommended to allow the saw to sag in a turned out to be ten to twelve hours.

Requirements for sharpening tape saws with your own hands:

ensuring uniform cutting of the metal by tooth profile;

the exclusion of excessive pressure of the circle (this can lead to anneal);

ensuring the safety of the height and profile of the tooth;

proper, sharpening, strip, saws

mandatory presence of coolant;

Standard instructions for sharpening tape saws states that sharpening should be carried out either on the front surface of the tooth, either on the front and back. But this is a theory. In practice, many professionals, and the people’s craftsmen “perform” it exclusively on the back surface. so, in their opinion, more convenient.

In general, despite a lot of rules and requirements, these tools are quite unpretentious in terms of sharpening. You can work with them both using a special sharpening device for strip saws, and manually; apply circles different in shape and material for processing.D.

Before you sharpen the strip saw, you must familiarize yourself with the main methods of this operation.

Is the highest quality, produced on an automatic machine. The Elbor Circle, precisely selected in shape, with one movement passes the entire interdental cavity along with the corresponding surfaces of neighboring teeth. Obtaining angular shapes at the base of the teeth at the same time excluded. The only drawback of such sharpening is the need to have a certain number of circles for “diverse” saws at a constant disposal.

Can be carried out on a professional machine or manually.

If the preference is given to the machine, then, again, you should competently choose a circle. usually these are flat samples. In general, it is recommended to contact a specialized solid equipment only in cases where the volume of work is quite large. Episodic “home” manipulations are best done manually. using an engraver or on a regular machine. When working for security purposes, you should definitely use a mask or protective glasses.

If there is no machine or engraver in your arsenal, then you can sharpen the strip saw and the usual grandfather method. by wielding a file. Three or four confident movements on the rear or front face of each of the teeth-and the point, as they say, is “in the hat”. With regular and diligent performance, the skill of high.quality manual sharpening will appear quickly.

In the case of sharpening the strip saw through the machine, before starting work, it is necessary to make sure that the position of the sharpening disk relative to the tool.

It is very important to remove such a amount of metal from the sinuses that all microcracks are guaranteed to be eliminated.

If the tool “functioned” without quality service longer than the manufacturer allowed, the amount of metal removed in one sharpening should be increased.

To check the sharpening results, always use a new tool as a standard.

Form of the saw tooth. a parameter developed and verified for years. Therefore, to hope that the tool will saw “like clockwork”, regardless of what you “do” with teeth is a huge misconception.

Subject to operational requirements, the strip saw will serve you in the conscience until its width decreases to a number equal to 65% of the initial value. The width is reduced, of course, in the process of the re.placement.

There is a completely absurd recommendation that there is no particular need to remove burrs after processing. If you “listen” to it, then the appearance of microcracks in the canvas is guaranteed.

After operation, the strip saw should be immediately cleaned of tar and sawdust, and before sharpening. a thorough inspection. Otherwise, the risk of clogging of the sharpening discs is extremely high. And this inevitably entails the “hack” of the sharpening procedure.

Divorce and sharpening of a strip saw

The most important factor in the success of the business for logging is what saws are used in production. The size of the saw and the material from which it is made is important, and the technology according to which it is produced.

But even the use of saws of the optimal size made according to the most modern standards will not allow you to get the profit that you are counting on if these saws are not correctly sharpened and divorced. Incorrect divorce and sharpening of saws lead to the appearance of defects on the lumber, which means that its cost is significantly falling.

Correct sharpening and divorce dragged when working on a strip sawmill is especially important. Unfortunately, in practice, many even confuse the sequence of these procedures: first they breed a saw, then they drag. As a result, the divorce of the saw tooth “leaves”, and the saw must be diluted again, or if this is not done, the quality of the finished product will leave much to be desired.

If we talk about the machines on which the sharpening and divorce drank, then every detail is really important here. The company “Emerald Forest” contributed to the development of high.quality divorce and sharpening devices.

Small adjustments are distinguished by thin adjustments, which allows you to adjust the supply size with an accuracy of 0.1 mm. Almost all the sharpening machines that exist today on the market are dragging any one specific step of the strip saw. The machine allows you to sharpen 19, 22, 25 step, which is its significant advantage.

Another distinguishing feature of the machine. it does not give a quenching to the tip of the tooth of the saw, because otherwise the tip of the tooth when entering the log falls off, as a result there will be a wave. The machine allows you to drag saws up to 7 m. In case of failure of any electric engines, mechanisms, buttons, components can easily be purchased in a car store.

Modern tape saws. durable and at the same time elastic. Despite these undoubted advantages, the value of the correct divorce of the saw is difficult to overestimate, because the quality of the collapse of the saw tooth directly affects the quality of the resulting lumber.

The divorce machine has the correct geometry: when installing a saw in a divorce machine, the root of the tooth is between the cheeks that clamp the saw. In many other machines, including a number of well.known manufacturers, this condition is not met. Therefore, when the tooth is bent, both the tooth and the body of the saw occur. The technically correct divorce of the saw implies something else: the pusher rests on 1/3 of the tooth and only its tip bends.

In the manufacture of a divorce machine, two clamping stops are used, which, with a slight pressure on the handle, press the tooth to the indicator head. The pusher, not reaching the tip of the tooth, shows the actual divorce on the strip saw. If it is insufficient, then the operator presses the tooth until it is divorced to the required size. We consider it very important to pay attention to one moment: the tooth of a tape saw has a property like a metal memory. Because of it, under the influence of inertia, the tooth seeks to return to its original position. Therefore, for proper wiring, it is not enough to make one press on each tooth: it is necessary to influence the tooth several times so that it remembers its position. If someone tells you that it is enough to press each tooth once once, know: you are misleading.

Two clamping stops with powerful springs used in the machine show the actual divorce of the saw tooth, which is very convenient: you do not need to endure endlessly and connect the pusher again to find out how the saw tooth is allotted by fact.

The divorce ladder is one strong side of the company’s divorce production. the lightness and safety of the operator: the tooth divorce does not occur by pressing the pusher operator forward, as in a number of analogues, but due to the operator’s own weight and with the help of an eccentric. As a result, the operator does not have sprains of the hands.

So, high.quality divorce and sharpening machines. what, of course, should be in the arsenal of each owner of the sawmill. But in themselves, they do not guarantee the qualities of lumber, will not allow the saw to serve for a long time if sawmills that have serious technical disabilities are used in the production.

For example, if the rollers are made by cone, or they became conical, because the saw was stolen, then even with proper sharpening and wiring, the saw begins to look for her place in the log. This will happen because the videos are leaning. If the pulleys are divorced on the sawmill and are not in the same plane, then the saw is collapsed not clearly in the middle, but from the sides, and then the tension goes to the edge of the tape canvas. It also reduces the service life of the saw.

So the role of proper wiring and sharpening of the saw is, of course, great, but these factors do not determine 90% of high.quality sawing, as is commonly believed. It’s just that the saw itself will not be able to cut perfectly evenly and not fail for a long time, if, for example, a hard tension is used on the sawmill.

If you are just starting your business and have not yet managed to get acquainted with all these nuances, we recommend that you turn to those who have been working on the market for several years. Phone of the central office of the Emerald Forest company in Novosibirsk: 8-800-555-35-15 (call free). Contact. and we will advise you about the choice of equipment based on your needs and your budget.


To inhabit the teeth with a step of 0.5 mm, the ratchet is replaced. The interchangeable matrix 11 is attached to the case 1 screws 12 and installed using stop 13. When installing a new tape, the upper roller is diverted from the bottom with a special lever. At 116, the slope of the slider and the step of the teeth of 6 mm, the device per 1 h inhabit teeth on a tape 41.76 m long. For the productive operation of tape saws, the correct divorce of the teeth is of great importance. To divorce tape saws, a device is used, the scheme of which is presented at 14 [8]. The device is driven by rotation of the flywheel 1, fixed on the crankshaft 2. On the latter are freely located rings-bearings, in which curved levers 3 and 4 are fixed on the thread.

When the flywheel rotates, they receive reciprocating movement. At the end of the lever 3, a square is installed with a freely hanging dog 5. When the lever moves 3 to the right, the dog rests on the tooth of the saw blade 6. With one turn of the flywheel, the saw moves on two teeth. A hinged dog with a horned is fastened, so when the lever is revealed, the dog rises and slides along the teeth of the saw. Browns 4 are elements of the teeth divorce mechanism (the second lever is on the back of the case). Brokes 4 jointly connected to the crank axis of the fist 7. The levers are returned to the starting position by springs 8. When the flywheel rotates, the levers 4 turn the fists 7 that pushes the punch 9 towards each other. Two neighboring teeth of the saw bend in different directions (divorced). Springs 8 return the fists 7 and punch 9 to its original position.

The angle of divorce of the teeth is adjusted by nuts 10 and using the threading of the threaded end of the levers in the rings on the crankshaft. Tooth divorce angle 15 ° in both directions. The size of the dog 5 is regulated by a nut 11. The mechanism of installation and fixing of the strip saw has two plates that make up the device case, and the wedge 12 between them. The wedge moves in the case, and the teeth of the diluted saw always protrude above the body for a certain value.

At the Volgograd Tractor Plant, a device for wiring tape saws is used. The device works from a manual drive and consists of two discs with bundles, on which a strip saw is installed. One of the discs is mobile for a saw tightening. Divorce is carried out with two fists with a dog, a lever with a roller, copiers, handles and levers.

For cutting and divorcing teeth of tape saws, an automatic machine is used [54]. The teeth are cut on a steel tape of any length, which is further cut into measuring tapes. When restoring the strip saws, the teeth are cut again on them. The machine can be installed on a separate bed, table or workbench; Its overall dimensions are 380x320x250 mm, weight 16 kg; It is equipped with an electric motor with a capacity of 0.37 kW, with a shaft speed of 1400 rpm.

Two brackets 2 and supporting bar 3 are installed on the plate 1 machine gun (15). Supports 4, in which a worm 5, carrying ball bearings, and a led pulp of a flywheel 6 are installed, are installed to one bracket. On another bracket, an eccentric 7 pusher is mounted 8 feeding mechanism and gear 9. The supply mechanism consists of three supports 10-12, on which the worm steam 13 and 14 is placed, the leading video 15 to serve the harvesting of the tape, the pressure roller 16, the lever 17 of the pressure roller and the screw 18, which regulates the degree of pressing the slide roller. To move the workpiece by a step of the saw on the worm 5, a reputable ratchet 19. The leading dentate wheel 21, which is engaged in the gear with a gear wheel, the eccentric pusher of the supply mechanism, the cams 22-25, intermediate bushings 26 and 27 and the worm wheel 28 are installed on the shaft 20. A combined stamp is installed on the support bar 3 (16); One of the stamps serves to cut the teeth, and the other for a divorce; Stamps are mounted on plate 1 between two racks 2 and 3. Based on the plate 1, two and 5 strips are installed along with the matrix of the cutting stamp. Between the matrix of the cut stamp and the guide bar 6 there is a bar 7 of the clamping device. The device is kinematically connected with the punch of the cutting stamp using two rollers of 8 and 9 guide strips 10 and 11, between which the spring 12 and the pushing head are inserted. A rubber ring 14 and a metal ring 15 are put on the bar 11, with which the tape is pressed during deforestation. For lateral pressing the tape in the hole of the plank 4, the clamping device is mounted. It consists of a latch 16, clamping plank 17 and spring 18. The pushing head serves as a guide sleeve, into which the spring 19. The tape is fixed with a nut 13. Nut 20 pushing head rests on a metal ring 15 rubber ring 14. To release the tape after cutting down and moving it to a new section, a spring 12, which returns the clamping device to its original position. Poanson pushing head glides along the bronze sleeve 21, pressed into the bar 2 and 3. Depending on the strength of the clamp of the tape, it protrudes above the bar for one or another. The stamp for a divorce of teeth does not have a clamping device.

Punch 22 at one end inserted into the pushing head 23, and the other into the bar 24. Its position is regulated by a nut 25. Between nut 25 and the guide sleeve 26, a spring 27 was installed. Poanson’s pushing head slides along the guide sleeve 28, pressed in the bar 29. The combined stamp is installed on the stove and covered with a casing.

To thicken the teeth of tape saws, the DIXA (PNR) apparatus is used. The distance between the teeth subjected to thickening, 17 mm, the minimum tooth height 9 mm, maximum saw thickness 3 mm. For lateral profiling, alignment and grinding of flattened teeth of tape saws, the DHCA-20 (PNR) machine is used.

proper, sharpening, strip, saws

How to hide and breed ribbon saws. Introduction

Proper preparation of tape saw for work. This is a key point in achieving not only high quality sawing, but also economical use of the tool. A well.sharpened and diluted saw remains acute longer and can be renovated more than a number of times. Wood-Mizer advises to give the sharpened saw “rest” for one day before it is installed on the sawmill. This allows you to remove the voltage of the metal and, in general, extends the service life of the saw.

Taking tape saws

Wood-Mizer offers several sharpening devices of various and performance. You can choose the best option for your tasks. All Wood-Mizer sharpening machines use the technology of sharpening CBN with a furrow disk, which does not need to rule, since it corresponds to the shape of the tooth-mizer tooth and grinds the entire sinus to the passage for the passage.

Wood-Mizer sharpening devices

Wood-Mizer produces three versions of shoes for tape saws.

The semi.automatic machine BMS250 provides excellent sharpening quality, is equipped with an automatic switch, a reliable casing that closes the saw during the trim process, and the exhaust hole for removing gaseous waste. The BMS250 sharpener uses a 127 mm CBN-produced CBN-produced shock in different versions for each tooth profile Wood-Mizer. The scraper removes metal burrs from the saw after protruding.

The BMS500 automatic machine is designed for use at industrial sawmill enterprises, where there is a need for daily stringing of tape saws. A CBN.with a diameter of 203 mm provides high sharpening quality, working at increased speed and with higher performance. The control panel is equipped with a tooth meter, adjusting the sharpening speed and can be programmed to shut off the machine after protruding a certain number of teeth. The machine also has a scraper for removing metal burrs from the surface of the sharpened saw.

What is Gypsy Sawing? / Using a Bow Saw the easy way!

The industrial version of the BMS600 device is also available, equipped with a more powerful pump, and as a result, providing higher machine performance.

Straining ribbon cutting process

Before removing a lost saw from the sawmill, it is recommended to turn on the machine for 15 seconds and rinse the saw washing liquid to maximize the sawdust from its surface. If this is not enough, and sticking sawdust remained on the saw’s body, clean it with a metal brush.

The process of tightening returns the edge of the tooth of its sharpness and a rectangular shape in relation to the saw body. Wood-Mizer advises to use exclusively CBN wheels of the necessary profile, which grind the entire surface of the sinus tooth. This is very important, since microcracks can form in the non.converse places of the sinus, which over time grow and cause a premature rupture of the saw. It is recommended to grind each saw twice. In this case, the pressure of the sharpening disk at the saw should not be excessive.

Removing metal burrs

Removing small pieces of metal remaining on the edge of the teeth after sharpening, it is necessary, since these burrs lead to the appearance of microcracks. Wood-Mizer BMS250 and BMS500/600 sharpening devices do it automatically. However, when using old models of sharpening devices, it may be necessary to clean the surface of the saw from burrs with a wooden bar. The removal of burrs is also important because the surface of the saw should be clean for high.quality wiring of the teeth.

Restoring the correct wiring of the tooth is very important for the quality of the cut. The wiring point should not be located too high or too low: only the upper third of the tooth is bred.

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The process of wiring the teeth of the tape saw

To get a high.quality surface of the cut, you need to make the correct and regular wiring of the teeth. Divorced teeth clear the path for saws in wood and take the sawdust out of the cut, as a result of which the saw moves smoothly, and the surface of the board is even and smooth. The more fibrous wood, the greater the size of the teeth divorce, and on the contrary, for dense or frozen wood, a small divorce of teeth is required.

Too much diluted saws of saws lead to the cutting board has a rough rough surface. Insufficient wiring of teeth is expressed in the fact that too many sawdust accumulates in the propyle that overheat the saw. With proper wiring of the tooth, the sawdust should be small, homogeneous and slightly warm by touch.

Wood-Mizer divorce devices

BMT100 manual divorce device provides good accuracy and regularity of wiring. The operator, using the pen, puts the saw forward and makes the teeth one at a time, controlling the process by the micrometer.

The BMT150 divorce device is also controlled manually, but is characterized by the fact that the operator dilutes two neighboring teeth in different directions with one movement of the lever.

The most productive and high.precision divorces are semi.automatic machines BMT200 and BMT250 with simultaneous bilateral wiring.

Computerized pneumatic divorce machine BMT300. This is an automatic machine designed for industrial sawmills.

Wood-Mizharp tape saw preparation service

The Resharp service is very popular, since the Wood-Mizer specialized equipment is used in service centers, and in the process of preparation for tape saws, in fact, factory sharpening and wiring parameters are restored. Contact your closest service center and find out prices, which are usually very acceptable. In the Minsk Wood-Mizer service center there is also a service for sharpening round saws and restoration of carbide attacks.

Using the Resharp service will allow you to focus on bringing you money, that is, on sawmill, and save time and money on such auxiliary operations as sharpening and wiring tape saws.

Saws Part 1: Saw Techniques & Sharpening a Rip Saw

Divorce devices

For a divorce, there are special divorce devices that are characterized by a wide variety and functional capabilities. Today, many experts are appreciated by the device for wiring “cedar” for its reliability, simplicity and ease of work, as well as a low price.

It is a manual machine that provides a wiring accuracy of 5 μm. The machine is equipped with special supporting racks to facilitate its use. The presence of an hour.long type indicator on the machine, the wiring accuracy increases as much as possible.

The carefully thought.out design of the Kedr divorce device provides a productive and efficient use of the entire saw resource set by the manufacturer. It can be easily configured for the necessary divorce parameters to ensure the optimal saw width. As a result, you can do with a lower engine power, t. to. friction forces are reduced when sawing.

This divorce machine easily and simply provides wiring in which the resistance of sawing is minimal.

Each of the wood of the tree has a characteristic rigidity. Depending on this characteristic, the pitch of the drain of the saw should vary. For hard breeds, the step should be less.

Despite the obvious advantages of this machine over other devices of a similar purpose, it has an affordable price, which also contributes to its increasing recognition in the vastness for wiring the cedar tape saws has the following technical characteristics:

Recall about simpler devices for divorcing saws. Their use for strip saws is fraught with low accuracy and great labor capacity. Their use is justified only in the absence of special devices.

Operation of tape sawmill

General information about the machine (ribbon sawmill spectrum-70) machine ribbon horizontal “Spectrum-70 ″ rice.1 (in the future in the text of the “tape sawmill”) is used to saw wood of any hardness on boards, timber, rail. Sawing is moving a saw frame with a cutting tool (strip saw) along a fixed rail guide of a tape sawmill. The use of tape sawmill allows: to make boards with high surface quality of material up to 700 mm. in diameter; Get a board with an accuracy of 2 mm. With a length of 6 m.; Ribbon sawmill allows you to reduce waste by 2-3 times, reduce energy consumption; quickly adjust the size of sawing, tape sawmill can saw short blanks (from 1.0 meters) and receive products up to 2 millimeters thick. The tape sawmill operates in the conditions of UHL 4 (GOST 15150-69). The ribbon sawmill is equipped. 2. “Ribbon sawmills”. work and device: 2.1 main nodes and parts of the strip sawmill: a bed that moves along the rail guides in a horizontal direction; Frame saw; The mechanism lifting the saw frame; Electric cabinet; Log clamp; Mobile slider of the driven pulley; The leading pulley; The pulley of the led; Wedge.rephid transmission; Rail guides of tape sawmills; A mechanism pulling the strip saw; Installation connector of the strip saw; Pulp of pulleys of tape sawmill tank tanks for crook guide saw a fixed guide saw, a movable ribbon pylorama, a shaped shape and sole with rollers of moving the saw frame on rails and felt brushes, which are cleaned of guide from sawdust. The lift of the saw frame is carried out by two sliders located on the racks of the bed. The movement is carried out by a bilateral, synchronously connected chain transmission, driven by an electric motor, through a gearbox. The frame has two channels, which are located in parallel and interconnected. The leading saw pulp is motionlessly fixed at one end of the frame, which has the possibility of longitudinal movement. The saw of the tape sawmill is pulled by the spring-screw mechanism, the spring damps the thermal expansion of the saw tape. In the manufacture of tape sawmill, a 35 centimeter.width tension is rated. The risks of the tensioner and the puck are equal to the tension force of 525 kilograms. In the front beam of the tape sawmill and on the slider of the driven pulley there are two locks for the picking and installing saw tape. On the brackets of the frame located in the middle of the frame, two guides of the strip saw (mobile and motionless) are installed, which are equipped with support rollers and the adjustment system and the bar. Twisting the moment is transmitted from the engine engine to the leading pulley. wedge.rephid transmission. Backet for coolant is fixed on top of the protection of saw schools. The supply of fluid is regulated by the taps located on the tank. The tape sawmill control panel is located on the upper jumper of the machine. Directed collapsible from 3 sections, which is convenient during transportation. Below are supporting plates into which anchor bolts are screwed. Top guides of the strip sawmill of the log of logs. The log on rail guides is fixed with four screw clamps and an emphasis that provides 90 degrees. 3. Fore pulp regulation The machine provides for the adjustment of the position of both pulleys in relation to each other in horizontal and vertical planes. It is necessary to ensure that the strip saw when tension is 6-8 kg/mm ​​kV. In the section on one branch did not go from the rims of saw pulleys. 3.2. First of all, the pulleys are adjusted in the vertical plane, exposing them at right angles in relation to the saw frame. To do this, on the slider of the driven pulley, the ML0 bolt is screwed from below to its axis, and on the leading pulley, adjustment is carried out due to the installation of seamy washers or plates. This operation.It is produced by the manufacturer. 3.3 To regulate the position of saw pulleys of the horizontal plane in the ends of the frame from the side of the leading pulley, two ML2 bolts are screwed, and one to the axis of the driven pulley is one. It is necessary to adjust the pulleys of tape sawmill in the following sequence: 3.3.1 Turn off the power supply machine on the control panel. 3.3.2 Open protective casings of saw pulleys. 3.3.3 install the strip saw on the pulleys so that it protrudes beyond the edges of the pulleys by a height of the tooth plus 2-5 mm. 3.3.4 Close movable connectors (locks). 3.3.5 pull the strip saw, turning the nut of the tension mechanism to the value of the optimal type for this type of ribbon saw (at the rate of 6-8 kg/mm ​​kV.). 3.3.6. Rotating with a hand for the driven pulley along the sawing (counterclockwise) you need to look at what position the tape saw will take on the pulleys. If the tape runs out to the equal size from both pulleys, then without weakening the saw tension, release the locking nut of the ML6, fastening the axis of the led pulley to the saw frame (slider of the saw frame). 3.3.7 Then release the M12 locknut and plunge the ML2 bolt to a small size, then tighten the M12 counter and the lock nut M16. 3.3.8 Repeat paragraph 3.3.6 and when the tape is running, repeat the adjustment until the correct result is obtained. 3.3.9 If the tape runs inside to an even value, then it is necessary to loosen the tension of the strip saw. 3.3.ten. Release the locking nut of the ML6, the M12 Ringia and turn out the M12 bolt to a small size, then tighten the m12 and M16 nuts and M16. 3.3.11 If the tape took the situation according to the instructions, then the adjustment is performed correctly. 3.3.12 If the strip saw immediately runs off the leading pulley, then the adjustment should start with it. 3.3.13 For this, depending on the direction from running the tape (outward or inside), release the left or right locks of the ML6 and adjust in the same sequence as on the ledness of the pulley. 3.3.14 after adjusting all the nuts tighten. 3.3.15 Close the doors of the casing of saw pulleys. 3.3.16 Turn on the email machine. energy on the control panel. 3.3.17 Turn on the drive of the saw pulleys briefly and make sure that the position of the saw tape is correct. The machine is ready to work. four. Requirements for saw tapes 1. During the operation of the strip sawmill, to increase the service life of the strip saw, it is necessary to carry out its proper tension on the pulleys. one.1 tension value, depending on its width, is determined by the “Tenzometer” device. one.2 attention! The strip saw should not be in the work for more than 2 hours. After this time, it should be removed from the machine and posted in a free state for at least 24 hours to relieve fatigue stresses. 2 Use the correct lubricant for the blade of the strip saw. As a lubricant-cooping fluid (coolant), in most cases, there is just enough water, or water with the addition of a detergent (“Fairy” and t.P.). However, at low temperatures, it is best to use a mixture of 50%.80% diesel or kerosene and 50%.20% of motor oil, or oil lubrication of tires of chainsaws. Good results in sawing coniferous rocks also gives the use of turpentine. In the case of using water as coolant, it is necessary to wipe the pulleys and tape with oil at the end of the work. 3. Always weaken the tension of the strip saw. When you finish the work, remove the tension from the saw. During operation, the blades are heated and stretched, and then when cooling, they are compressed to tenths of a millimeter during each cooling period.”Therefore, the tapes left on the pulley under load overload themselves, and they form a print from two pulleys, which causes cracks in the hollows between the teeth. four. Use the correct divorce of teeth. The divorce is correct if you have 65-70% of sawdust and 30-35% of air in the space between the canvas and the wooden wood. If you have too much divorce of teeth for the existing mass or thickness of wood, then there will be too many air in the propyle and not enough sawdust. You will have overly large losses on sawdust, and as a result, a large roughness of the processed wood. If the divorce is insufficient, you will not get a strong enough air flow to remove sawdust from the cut. A sign of this is hot sawdust. This can do the most destructive harm to the saw: working intervals will be short, the saw will fail prematurely. Sawdust should be cold to the touch. And finally, with insufficient divorce and improper angle of sharpening, the saw will cut out the wave on the board. From our point of view, you cannot work with the same wiring of teeth with logs of different diameters, drill forest and timber. You must sort timber. For every 20-25 centimeters of an increase in size, it is necessary to increase the wiring by about 18%, depending on whether the wood is hard or soft, wet or dry. The only way to achieve the necessary wiring is to carry out control cuts of a certain log. Increase wiring by 5-8 hundredths of millimeters on each side until you become, traces of teeth are visible. This means that you work with mixed air with sawdust in a ratio of 50/50. After that, reduce the wiring of the teeth by 8-10 hundredths on each side, and you will achieve the desired result. Please note: you must breed only the upper eighth of the tooth, not the middle or lower. You do not need that the cavity between the teeth is filled completely when sawing. When you work with soft wood, whether it is wet or dry, the chips increase in volume by 4-7 times compared to its condition at the cellular level. Solid rocks of wood, wet or dry, increase in volume only 1/2-3 times. This means that if you saw 45 centimeter pine logs, you will need to dilute the teeth 20% more than when you work with 45 centimeter oak logs. Always make teeth before sharpening. 5. Take the saw correctly. There is only one way to sharpen tape saws. The stone should pass along the surface of the tooth down, around the base of the hollow between the teeth and up along the back of the tooth with one continuous movement. You must save the profile of the tooth and interdental cavity. The space between the teeth (galllet) is not a litter for sawdust. The power flow of air, cooling of steel and the removal of sawdust depends on it. If you have the correct divorce of the teeth, the air is supplied along the log at the same speed as the saw, as a result of the sawdust, are sucked into a gall. Sawdust significantly cool it, passing around the inner and outside of the next tooth. It is necessary that the space between the teeth is filled by 40%, which will provide the necessary cooling and increase the operation of the saw. 6. Install the correct angle of sharpening. Thanks to deep gallets, we can use the reduced sharpening angles that transmit less heat to the tip of the tooth. The ribbon series uses an angle of inclination of a hook of 10 degrees, which is able to penetrate into most surfaces of wood from medium hard to medium soft. The general rule is this: the harder the wood, the smaller the angle of sharpening. Caution: Do not trust the scales and measuring ruler on your machine machine! Pins and guides wear out on it. In the process, the profile of the stone changes. To control the correct angles of sharpening, use the transporter. Attention; We recommend changing saws every two hours of continuous work, letting them rest at least a day. During the operation of the machine, there is a need to regulate individual components in order to restore their normal operation. In Fig. 1 shows some parameters of the canvas that determine its durability and performance where: a is the angle of sharpening, this is the angle between the front surface of the tooth and the plane of the perpendicular back of the saw; B. tooth cavity; C. the back surface of the tooth; E. divorce, this is a deviation of the tooth from the vertical. Fishing line for a trimmer of divorce (place of bending) is located at a distance of 1/3 from the top of the tooth; R is the radius of the hollow;

Design features of strip saws

Elements of the teeth.

  • The width of the cut (cut) in tape tools is much smaller than that of disk analogues. When cutting a cheap tree, the moment is not so noticeable, but when cutting valuable and exotic varieties of wood, it is important critically.
  • The machine can saw the blanks of any size. At the same time, the strip tool works quickly and creates a cut of high quality.
  • Waste (chips, sawdust) when using this type of saw very little.

note! For the machine to always work stably and efficiently, you should approach its maintenance extremely responsibly. Sharpening and wiring of tape saw on wood should be carried out in a timely manner and competently.

Profile, teeth and angle of sharpening

International classification of teeth profiles.

Ribbon devices have different geometry of cloves, which depends on the type and characteristics of the cut materials. Tool for wood can be carpentry and dividing. There is a third type designed for sawing a beam, logs. All these subspecies have their own parameters and the shape of the cloves.

The angle of sharpening of tape saw on wood is selected by the manufacturer based on several points. The main of them is the more firm, the more the front angle should be smaller. Below is a table with the main saw parameters.

Pilage characteristics Carpentry devices (1 profile) Divisive analogues For cuts of logs and bars (4 profile)
2 profile 3 profile
Thickness at the canvas, in mm 0.6-0.9 0.9-1.2 0.9-1.2 one.4-2.2
Width at the canvas, in mm 10-60 50-175 50-175 230-350
Step of cloves, in mm 6-12 30-50 30-50 50-80
Tail height, in mm 2-6.5 9-13 7.5-15 16-24
Radius of rounding at the hollow, in mm one.5-2.5 3-4 3-4 5-8
Rear angle, city. 35 twenty fifteen 12
Angle of sharpening, city. fifty 45 45 53
Front angle, city. 5 25 thirty 25

Teeth and angles of their sharpening

Ribbon saws have different geometry of teeth: it is affected by the properties and type of sawed material. So, to work with wood, a carpentry saw is used, for cutting logs, dividing. Each species, respectively, its own tooth geometry.

In tape saws intended for working with wood, the angle of sharpening is determined by the manufacturer, but the following is characteristic. the harder the material, the more the front angle should be less.

For saws with a constant pitch of teeth when working with metal are characterized by two forms of teeth

For blanks with a small thick walls (pipes, leaf rental), saws with a small pitch of teeth are used. otherwise there is a risk of breaking or damaging a tooth. It is better to work with thick workpieces with a small number of teeth per inch.

To remove the effect of oscillations, a number of saws are made with a variable pitch of teeth.

Proper wiring of saws

Technical Director of the Wood-Mizer plant Daryush Kuyava talks about the features of wiring tape saws.

I want to draw your attention to typical errors that arise when wiring tape saws.

The position of the grotto of the divorce device, the height of the grotto of the divorce device determines how correctly the tooth is divorced, and also prevents the twisting of the tooth or the chiz of its cutting edge, which in turn affects the quality and accuracy of the saw, and the durability of the saw.

The pictures show cases of the incorrectly adjusted position of the grotto of the divorce device.

The correct position of the grotto.

The grotto is located too high.

The grotto is located too low.

The grotto is located on the cutting edge, which leads to its destruction and to twist tooth.

The next error occurs as a result of wear of the clamping screw in the divorce device. The bend of the saw is clearly visible, which is why a wave is formed during sawing. Therefore, it is important to check the condition of the screws of the divorce device.

To avoid these errors, you can use the Re-Sharp service program, which is proposed by our regional representatives (list of addresses on

Our many years of experience, qualifications of specialists, as well as professional equipment guarantee the highest level of sharpening and wiring saw. This will not only save you from problems with saws and improve the quality of sawing, but will also allow you to focus on the sawing, without distracting the additional operations of the preparation of saws.

Here’s what the saw should look like when the clamp and the sensor are correctly adjusted, and the grotto of the divorce device is put to the proper height. Result: all angles are symmetrical.

The next illustration shows a typical error associated with improper reversing the sensor. In this case, the saw will always dive in the direction in which the teeth are bent.

This is how the saw, prepared in the following priority: sharpening, wiring, second sharpening. This procedure for preparation is recommended by Wood-Mizer.

Technical characteristics of the Astron FP sharpening machine

Characteristic Meaning
Sharpening time of a saw 4026 mm long
Food 380 V, 50 Hz
The width of the tape 30-60 mm
The length of the tape up to 10 m
Power consumption 350 watts
dimensions 1100 × 500 × 500 mm
The weight 50 kg

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