Tar remover, and wood-cutting saw machine

Abstract

To provide a tar remover capable of suppressing contamination damage of a wood-cutting saw including a band saw.SOLUTION: A tar remover 100 comprises: a tar-removing tool 122 for eliminating tar by coming into contact with one side face of a rotationally driving wood-cutting saw 10; a tar-removing tool counter body 124 coming into contact with the other side face of the wood-cutting saw 10; and a tar-removing tool movable mechanism 110 approaching / separating the tar-removing tool 122 and the tar-removing tool counter body 124 to / from the wood-cutting saw 10, respectively. The tar-removing tool 122 is constituted from a metal brush. The tar-removing tool counter body 124 is constituted by a metal block. The tar-removing tool movable mechanism 110 constituted from the air cylinder approaches / separates the tar-removing tool 122 and the tar-removing tool counter body 124 to / from the wood-cutting saw 10, respectively, according to an operation of an operator 113.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a resin removing device that is installed on a saw for cutting wood that reciprocates or rotates and removes the resin adhering to the saw for cutting wood, and a saw blade for cutting wood provided with this resin removing device.

Background Art

[0002] Conventionally, there has been a resin removing device for removing the resin adhering to a saw for cutting wood. For example, Patent Document 1 below discloses a band saw blade resin removing and polishing device that removes the resin adhering to the saw blade of a band saw by relatively displacing the band saw between metal brushes facing each other.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

[0004] However, in the band saw blade resin removing and polishing device described in Patent Document 1 above, there is a problem that the band saw is damaged because the metal brush contacts the band saw whether or not resin adheres to the band saw.

[0005] The present invention has been made to address the above problems, and an object thereof is to provide a resin removing device and a saw blade for cutting wood that can suppress the contamination of a saw for cutting wood including a band saw.

Summary of the Invention

[0006] To achieve the above object, a feature of the present invention is a resin removing device that is installed on a saw for cutting wood that reciprocates or rotates and removes the resin adhering to the saw for cutting wood, the resin removing device including a first resin removing tool that contacts the saw for cutting wood and removes the resin, and a resin removing tool movable mechanism that approaches or separates the first resin removing tool with respect to one of the two side surfaces of the saw for cutting wood.

[0007] According to this, the tar removal device is equipped with a tar removal tool movable mechanism that moves the first tar removal tool closer to or away from one of the two sides of the wood cutting saw, so that when tar removal work is not required on the wood cutting saw, the first tar removal tool can be kept away from the wood cutting saw, thereby preventing the wood cutting saw from becoming dirty.

[0008] Here, the first tar remover can be configured in the shape of a spatula or block that makes line or surface contact with the face of the wood cutting saw, or can be configured as a brush made of bundled wires.

[0009] Another feature of the present invention is that the tar removal device further includes a tar removal tool opposing body that is positioned opposite the first tar removal tool via the wood cutting saw and contacts the other of the two sides of the wood cutting saw.

[0010] According to this, the tar removal device is equipped with a tar removal tool opposing body that is positioned opposite the first tar removal tool via the wood cutting saw and contacts the other of the two sides of the wood cutting saw, thereby preventing the wood cutting saw from bending and deforming due to contact with the first tar removal tool, thereby enabling tar removal to be performed with high precision.

[0011] Another feature of the present invention is that in the tar removing device, the tar remover opposing body does not come into contact with the blade portion of the wood cutting saw.

[0012] According to this, the tar removal device is formed so that the tar removal tool opposing body does not come into contact with the blade portion of the wood cutting saw, and therefore, in wood cutting saws that have a tooth vibration (tooth vibration) where the blade portion protrudes from the face of the wood cutting saw, damage to the blade portion due to contact with the tar removal tool opposing body can be prevented.

[0013] Another feature of the present invention is that in the tar removal device, the tar removal tool opposing body is a second tar removal tool that contacts the other of the two sides of the wood cutting saw to remove tar.

[0014] According to this, since the tar removing device is a second tar removing tool in which the tar removing tool counterpart contacts the other side surface of the both side surfaces of the saw for cutting wood to remove tar, tar can be removed on both side surfaces of the saw for cutting wood.

[0015] Another feature of the present invention is that, in the tar removing device, further, a counterpart moving mechanism for approaching or separating the tar removing tool counterpart with respect to the other side surface of the both side surfaces of the saw for cutting wood is provided.

[0016] According to this, since the tar removing device is provided with a counterpart moving mechanism for approaching or separating the tar removing tool counterpart with respect to the other side surface of the both side surfaces of the saw for cutting wood, when the tar removing tool counterpart is not required, the tar removing tool counterpart can be separated from the saw for cutting wood, and soiling of the saw for cutting wood can be suppressed.

[0017] Another feature of the present invention is that, in the tar removing device, the tar removing tool moving mechanism is to displace the first tar removing tool by driving of an air cylinder.

[0018] According to this, since the tar removing device displaces the first tar removing tool by driving of an air cylinder, damage to the saw for cutting wood can be suppressed by the first tar removing tool moving forward and backward following the saw for cutting wood according to the vibration of the saw for cutting wood during reciprocating drive or rotational drive.

[0019] Another feature of the present invention is that, in the tar removing device, further, an auxiliary material output tool for outputting a liquid or a gas for assisting in removing tar with respect to the saw for cutting wood is provided.

[0020] According to this, the tar removal device is equipped with an auxiliary material output tool that outputs a liquid or gas that assists in removing tar from the wood cutting saw, allowing for accurate tar removal. In this case, the auxiliary material can be a liquid such as water (tap water, alkaline ionized water, or pure water), ethanol, alcohol, alkaline detergent, or oil, or a gas such as air or an inert gas, or a mixture of these liquids and gases.

[0021] Another feature of the present invention is that the tar removal device further includes a tar removal tool adjustment mechanism that adjusts at least one of the position and orientation of the first tar removal tool relative to the wood cutting saw.

[0022] According to this, the tar removal device is equipped with a tar removal tool adjustment mechanism that adjusts at least one of the position and orientation of the tar removal tool relative to the wood cutting saw, so that the first tar removal tool can be accurately brought into contact with the wood cutting saw to remove the tar.

[0023] Furthermore, the present invention can be implemented not only as an invention of a tar removal device, but also as an invention of a wood cutting saw equipped with this tar removal device.

[0024] Specifically, the wood cutting saw machine is a wood cutting saw machine that cuts wood with a reciprocating or rotating wood cutting saw, and is preferably equipped with a tar removing device according to any one of claims 1 to 8. This allows the wood cutting saw machine to be expected to have the same effects as the tar removing device.

[0025] In this case, the tar removal device in the wood cutting saw machine can operate the tar removal tool moving mechanism in conjunction with the reciprocating or rotating drive of the wood cutting saw. This allows the wood cutting saw machine to always automatically perform tar removal work while the wood cutting saw is in operation.

[0026] The tar removal device can also be configured with a manual operator for manually operating the tar removal tool moving mechanism without being linked to the drive of the wood cutting saw. In this way, the tar removal device is equipped with a manual operator for manually operating the tar removal tool moving mechanism, so the operator can bring the first tar removal tool into contact with or away from the wood cutting saw at any timing depending on the status of the wood cutting saw or the tar removal work. [Brief description of the drawings]

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

[0028] Hereinafter, an embodiment of the tar removing device according to the present invention will be described with reference to the drawings. FIG. 1 is a front view schematically showing the outline of the configuration of the tar removing device 100 according to the embodiment of the present invention. Further, FIG. 2 is a plan view schematically showing the outline of each configuration of the base body 101, the device mounting body 105, the tar removing tool moving mechanism 110, the tar removing tool holder 121, the tar removing tool 122, the tar removing tool opposing body holder 123, and the tar removing tool opposing body 124 in the tar removing device 100 shown in FIG. 1.

[0029] (Configuration of the tar removing device 100) This tar removing device 100 is a mechanical device attached to a band saw (hereinafter simply referred to as a "band saw") (not shown) that rotates and drives a wood cutting saw 10 having a band-shaped saw blade formed in a circular shape to remove tar adhering to the band saw 10. In this embodiment, the band saw cuts a plate material into a circular shape with the band saw 10.

[0030] Here, the band saw 10 has a flexible steel plate main body 10a extending in a band shape, and saw-shaped blade portions 10b for cutting wood are formed innumerably along the longitudinal direction of the main body 10a at the edge portion. In this case, the blade portion 10b is formed with a so-called asari that projects outward on both sides with respect to the disk surface of the main body 10a. This tar removing device 100 includes a base body 101.

[0031] The base body 101 is a component for supporting the tar removing tool moving mechanism 110, and is formed of a metal material (for example, raw material or carbon steel) in a rectangular plate shape when viewed from the front. This base body 101 is mainly composed of a device-side base 102 and a tar removing tool-side base 103.

[0032] The device-side base 102 is a component for supporting the tar removing tool-side base 103, and is configured to include an attachment connection portion 102a in a rectangular plate-like body when viewed from the front. In this case, female threads into which bolts 104 are respectively screwed are formed at the four corners of the plate-like body portion in the device-side base 102.

[0033] Mounting body connecting portion 102a is a portion that is attached to device mounting body 105, and is formed in a plate shape that protrudes in a convex shape from the surface opposite to the surface that is attached to tar removal tool base 103. A through hole through which bolt 106 passes is formed in mounting body connecting portion 102a.

[0034] The tar remover side base 103 is a component that supports the tar remover movable mechanism 110, and is formed in the shape of a rectangular plate in a front view, with the same size as the plate-like body portion of the apparatus-side base 102. The tar remover side base 103 has elongated holes 103a formed at its four corners, through which the bolts 104 pass. As a result, the base body 101 is formed so that the attachment position of the tar remover side base 103 relative to the apparatus-side base 102 can be adjusted along the direction in which the elongated holes 103a are formed.

[0035] The device mounting body 105 is a component for mounting the tar removal device 100 to a band saw, and is configured by forming a metal material (e.g., green wood or carbon steel) into a rod shape. In this embodiment, the device mounting body 105 is formed into a square rod shape with a square cross section. This device mounting body 105 mainly includes a base mounting portion 105a and a saw mounting portion 105b.

[0036] Base mounting portion 105a is a portion connected to mounting body connecting portion 102a, and is formed at the tip of rod-shaped device mounting body 105. More specifically, base mounting portion 105a is configured to have two plate-like bodies sandwiching plate-shaped mounting body connecting portion 102a from both sides, one of the plate-like bodies having a through-hole through which bolt 106 passes and the other plate-like body having a female thread into which bolt 106 is screwed.

[0037] As a result, the base mounting portion 105a detachably holds the base body 101 by having the plate-shaped mounting body connecting portion 102a sandwiched therebetween and the bolt 106 passing through and screwed into it. In this case, the base mounting portion 105a can adjust the orientation of the base body 101 along the direction around the axis of the bolt 106 and hold it.

[0038] The saw blade mounting portion 105b is a portion for mounting on a band saw blade. In the present embodiment, the saw blade mounting portion 105b is a part of the components constituting the band saw blade, and has a hexagonal through hole corresponding to the cross-sectional shape of a saw blade component 20 extending in a rod shape in the vertical direction around the portion where the band saw blade cuts wood so as to be able to sandwich the saw blade component 20.

[0039] In this case, a separation piece 105c which is a part of the saw blade mounting portion 105b is configured to be separable as a separate component so that the hexagonal through hole of the saw blade mounting portion 105b is divided into two and opened. This separation piece 105c is configured to be detachable from the saw blade mounting portion 105b by two bolts 107.

[0040] The resin removing tool moving mechanism 110 is a device for approaching or separating the resin removing tool 122 and the resin removing tool opposing body 124 from the band saw 10 respectively. Specifically, the resin removing tool moving mechanism 110 is constituted by double rod type air cylinders (air chucks) for driving the resin removing tool 122 and the resin removing tool opposing body 124 respectively. That is, the resin removing tool moving mechanism 110 is configured to include a pair of rods that protrude and retract from the main body of the air cylinder in opposite directions to each other.

[0041] This resin removing tool moving mechanism 110 is attached to the central portion of the resin removing tool side base 103 on the base body 101 via bolts (not shown). In this case, a resin removing tool holder 121 and a resin removing tool opposing body holder 123 are detachably attached to the tip ends of the pair of rods in the resin removing tool moving mechanism 110 via bolts (not shown). Further, a compressor 111 is connected to this resin removing tool moving mechanism 110 via a solenoid valve 112.

[0042] The compressor 111 is a mechanical device that supplies compressed air for operating the soot removing tool movable mechanism 110 which is an air cylinder. Further, the solenoid valve 112 is a device for controlling the supply of the compressed air generated by the compressor 111 to the soot removing tool movable mechanism 110. The operation of this solenoid valve 112 is controlled via an operator 113 for manual operation by an operator.

[0043] The soot removing tool holder 121 is a component for holding the soot removing tool 122, and is configured by forming a metal material (for example, raw material or carbon steel) in a block shape. In this soot removing tool holder 121, a holder hole 121a configured by a through hole for detachably fitting and holding the soot removing tool 122 is formed. Further, this soot removing tool holder 121 is arranged such that the soot removing tool 122 is located radially outward with respect to the circumference when cutting a plate-shaped wood into a circle on a band saw machine.

[0044] The soot removing tool 122 is a component for removing soot adhering to the band saw 10. Specifically, it is configured by a brush formed by bundling brass wires. In this case, the tip of the brush constituting the soot removing tool 122 is formed to spread in a circular shape with a diameter larger than the length in the width direction orthogonal to the longitudinal direction of the band saw 10.

[0045] The soot removing tool opposing body holder 123 is a component for holding the soot removing tool opposing body 124, and is configured by forming a metal material (for example, raw material or carbon steel) in a block shape. In this soot removing tool opposing body holder 123, a mounting surface 123a having a female screw hole for detachably holding the soot removing tool opposing body holder 123 is formed. Further, this soot removing tool opposing body holder 123 is arranged such that the soot removing tool opposing body 124 is located radially inward with respect to the circumference when cutting a plate-shaped wood into a circle on a band saw machine.

[0046] The tar remover opposing body 124 is a component that receives the band saw 10 that comes into contact with the tar remover 122, and is made of a metal material (e.g., brass) formed into a block shape. The tar remover opposing body 124 has a main body receiving portion 124a and a recess portion 124b.

[0047] The body receiving portion 124a is a portion that comes into contact with the opposite surface of the body 10a of the band saw 10 that comes into contact with the tar remover 122, and is formed in a flat surface. In this case, the body receiving portion 124a is formed with a through-hole (not shown) through which a bolt (not shown) that is screwed into the female threaded hole in the mounting surface 123a of the tar remover opposing body holder 123 passes.

[0048] The relief portion 124b is a cutout portion of the main body receiving portion 124a so that the blade portion 10b does not come into contact with the band saw 10 when the main body receiving portion 124a is in contact with the band saw 10. As a result, the tar remover 122 and the tar remover opposing body 124 are held by the tar remover moving mechanism 110 in a state where they face each other.

[0049] The tar remover 122 and the tar remover opposing body 124 are provided upstream of the position where the band saw 10 cuts the wood in the driving direction of the band saw 10. The tar remover 100 is equipped with an auxiliary material output tool 130.

[0050] The auxiliary material output tool 130 is a tool for applying a tar auxiliary material to the band saw 10 to soften the tar. Specifically, the auxiliary material output tool 130 is composed of a nozzle that sprays water (tap water in this embodiment), which is the tar auxiliary material, in a mist form. This auxiliary material output tool 130 is provided on each side of the band saw 10. In this case, the auxiliary material output tool 130 is provided upstream of the tar remover 122 and the tar remover opposing body 124 in the driving direction of the band saw 10. The auxiliary material output tool 130 is also attached to the frame of the band saw machine via mounting brackets (not shown). A water pump 132 and an auxiliary material tank 133 are each connected to this auxiliary material output tool 130 via piping 131.

[0051] The pipe 131 is a flexible tube for guiding the tar auxiliary material stored in the auxiliary material tank 133 to the auxiliary material output tool 130. A manual valve 131a for adjusting the presence or absence or discharge amount of the tar auxiliary material discharged from the auxiliary material output tool 130 is provided in this pipe 131.

[0052] The water supply pump 132 is a mechanical device for sending the auxiliary material stored in the auxiliary material tank 133 to the auxiliary material output tool 130. The auxiliary material tank 133 is a container for storing the auxiliary material which is water.

[0053] (Operation of the tar removal device 100) Next, the operation of the tar removal device 100 configured as described above will be described. First, the operator prepares the tar removal device 100 and attaches it to the band saw. Specifically, the operator attaches the base body 101 to the saw unit parts 20 so that the tar removal tool 122 and the tar removal tool opposing body 124 are respectively positioned on the upstream side of the portion where the band saw 10 cuts the wood in the band saw (see FIG. 2).

[0054] In this case, the operator attaches the base body 101 so that the tar removal tool 122 is positioned radially outward and the tar removal tool opposing body 124 is positioned radially inward with respect to the circumference when the plate-shaped wood on the band saw is cut out in a circular shape. Also, the operator connects the compressor 111 to the tar removal tool movable mechanism 110 via the solenoid valve 112 (see FIG. 1).

[0055] Next, the operator attaches the auxiliary material output tool 130 to the upstream side of the tar removal tool 122 and the tar removal tool opposing body 124. In this case, the operator connects the water supply pump 132 to the auxiliary material output tool 130 via the pipe 131 and connects the auxiliary material tank 133 to this water supply pump 132 (see FIG. 1).

[0056] Next, the operator starts the operation of cutting the wood with the band saw. Specifically, as shown in FIGS. 3 and 4 respectively, after the operator rotates and drives the band saw 10 by operating the band saw, the operator operates the manual valve 131a to discharge the auxiliary material from the auxiliary material output tool 130 to the band saw 10 (see the dashed arrow in FIG. 3), and operates the operating lever 113 to bring the pitch removing tool 122 and the pitch removing tool opposing body 124 into contact with the band saw 10 respectively. Thereby, the band saw 10 is sent to the area for cutting the wood after being sandwiched between the pitch removing tool 122 and the pitch removing tool opposing body 124 with the auxiliary material attached thereto.

[0057] Next, the operator prepares a plate-shaped wood to be cut and displaces the wood in a circular orbit with respect to the rotating and driving band saw 10 to cut the wood into a circular shape. Thereby, pitch derived from the cut wood adheres to the main body 10a and the blade part 10b of the band saw 10. In this case, the pitch adheres mainly to the outer side surface in the radial direction with respect to the circumference when cutting out the plate-shaped wood into a circular shape among both side surfaces of the band saw 10. And the part where the pitch adheres to the band saw 10 has the adhering pitch removed by passing through the pitch removing device 100 when returning to the area for cutting the wood again for cutting the wood after cutting the wood.

[0058] Specifically, in the pitch removing device 100, first, the auxiliary material output tool 130 outputs the auxiliary material to both side surfaces of the band saw 10. Thereby, the pitch adhering to the band saw 10 is softened by the adhesion of the auxiliary material and becomes easy to remove. Also, the band saw 10 gets wet by the auxiliary material, so that the frictional resistance against the pitch removing tool 122 and the pitch removing tool opposing body 124 decreases.

[0059] Next, the resin removal device 100 entangles and removes the resin adhering to the main body 10a and the blade part 10b on the same side surface by pressing the resin removal tool 122 against one of the both side surfaces of the band saw 10 (the surface radially outside with respect to the circumference of the disk to be circularly cut out). In this case, the resin removal device 100 presses the resin removal tool opposing body 124 against the other side surface of the band saw 10 (the surface radially inside with respect to the circumference of the disk to be circularly cut out), thereby suppressing the deflection deformation of the band saw 10 due to the pressing of the resin removal tool 122 and improving the resin removal accuracy by the resin removal tool 122. Thereby, the band saw 10 performs wood cutting again in a state where the adhering resin has been removed.

[0060] During the resin removal operation of the band saw 10 by this resin removal device 100, the operator can select the presence or absence of the discharge of the auxiliary material by operating the manual valve 131a, and can select the contact or separation of the resin removal tool 122 and the resin removal tool opposing body 124 with respect to the band saw 10 by operating the operating element 113. Thereby, the operator can effectively remove the resin adhering to the band saw 10 by the intermittent supply or contact of the auxiliary material, the resin removal tool 122, and the resin removal tool opposing body 124, and can avoid the supply or contact of the auxiliary material, the resin removal tool 122, and the resin removal tool opposing body 124 when resin removal is not required.

[0061] Next, when the operator finishes the wood cutting operation, the operator operates the manual valve 131a to stop the discharge of the auxiliary material from the auxiliary material output tool 130 and operates the operating element 113 to separate the resin removal tool 122 and the resin removal tool opposing body 124 from the band saw 10 respectively. Then, the operator can finish the wood cutting operation by operating the band saw table to stop the rotational drive of the band saw 10. Incidentally, before stopping the rotational drive of the band saw 10, the operator can effectively remove the resin adhering to the band saw 10 by maintaining the supply state or contact state of the auxiliary material, the resin removal tool 122, and the resin removal tool opposing body 124 in a state where the wood is not being cut.

[0062] Furthermore, if a large amount of tar has adhered to the tar remover 122 and the tar remover opposing body 124, the worker can manually remove the tar adhering to the tar remover 122 and replace it with a new tar remover 122 and tar remover opposing body 124 that have no tar attached. Furthermore, if the tar remover 122 and the tar remover opposing body 124 are worn down, the worker can replace them with a new tar remover 122 and tar remover opposing body 124.

[0063] As can be understood from the above operation description, according to the above embodiment, the tar removal device 100 is equipped with a tar removal tool movable mechanism 110 that moves the tar removal tool 122 closer to or further away from one of the two sides of the band saw 10. Therefore, when tar removal work is not required on the band saw 10, the tar removal tool 122 can be kept away from the band saw 10, thereby preventing the band saw 10 from becoming dirty.

[0064] Furthermore, the present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the object of the present invention.

[0065] For example, in the above embodiment, the tar removal device 100 is configured such that the tar remover 122 and the tar remover opposing body 124 are disposed on either side of the band saw 10, and these clamp the band saw 10. In other words, the tar remover 122 corresponds to the first tar remover according to the present invention.

[0066] However, the tar removal device 100 can be configured by disposing the tar remover 122 on one of the two sides of the band saw 10. Therefore, the tar removal device 100 can be configured without the tar remover opposing body 124, for example.

[0067] Further, as shown in FIG. 5, the resin removing device 100 can also be configured such that resin removing tools 122a and 122b are respectively arranged on both sides of the band saw 10 and the band saw 10 is clamped by these two resin removing tools 122a and 122b. In this case, one of the two resin removing tools 122a and 122b corresponds to the first resin removing tool according to the present invention, and the other resin removing tool 122b corresponds to the second resin removing tool according to the present invention.

[0068] Further, in the above embodiment, the resin removing tool facing member 124 is configured to include a relief portion 124b so as to be non-contact with the blade portion 10b of the band saw 10. However, the resin removing tool facing member 124 can also be configured to contact the blade portion 10b when there is no shellfish on the blade portion 10b of the band saw 10. That is, the resin removing tool facing member 124 can also be configured by omitting the relief portion 124b.

[0069] Further, in the above embodiment, the resin removing device 100 is configured to include a resin removing tool moving mechanism 110 for bringing the resin removing tool facing member 124 into contact with or separating from the band saw 10. That is, the resin removing tool moving mechanism 110 functions as the facing member moving mechanism according to the present invention. However, the resin removing device 100 can be configured to include a facing member moving mechanism (for example, an air cylinder) that drives only the resin removing tool facing member 124 separately from the resin removing tool moving mechanism 110. Further, the resin removing device 100 can also be configured to always contact the resin removing tool facing member 124 with the band saw 10. That is, the resin removing device 100 can also be configured by omitting the facing member moving mechanism.

[0070] In the above-described embodiment, the tar removing tool 122 and the tar removing tool facing member 124 are made of a metal material having lower wear resistance than the band saw 10. Thereby, the tar removing tool 122 and the tar removing tool facing member 124 can suppress damage to the band saw 10. In this case, the tar removing tool 122 and the tar removing tool facing member 124 can be made of a resin material having lower wear resistance than the band saw 10. However, the tar removing tool 122 and the tar removing tool facing member 124 can also be made of a metal material or a resin material having wear resistance equal to or higher than that of the band saw 10.

[0071] In the above-described embodiment, the tar removing tool 122 is made of a brush. However, the tar removing tool 122 only needs to be configured to be able to remove the tar adhering to the band saw 10, and can be made of other than a brush. For example, as shown in FIG. 6, the tar removing tool 140 can be formed by forming a metal material or a resin material into a rectangular parallelepiped block shape. In this case, the tar removing tool 140 is formed with two through holes 142 through which two bolts (not shown) for attaching the tar removing tool 140 to the tar removing tool holder 121 penetrate the contact surface 141 that contacts the band saw 10 in a surface contact manner to scrape off the tar.

[0072] In this case, as shown in FIG. 7, the tar removing tool 140 can also be configured with the contact surface 141 as an inclined surface. According to this, since the upstream end 141a in the rotational driving direction of the band saw 10 on the contact surface 141 of the tar removing tool 140 is in line contact with the band saw 10, the tar can be scraped off while reducing the frictional resistance against the band saw 10. Further, the tar removing tools 140 shown in FIGS. 6 and 7 may be disposed opposite to both side surfaces of the band saw 10, or may be disposed only on one of the two side surfaces.

[0073] In the above embodiment, the tar remover moving mechanism 110 is configured with an air cylinder. This allows the tar remover device 100 to displace the tar remover 122 or the tar remover opposing body 124 toward or away from the band saw 10 in response to the bending of the band saw 10 itself or the vibration of the band saw 10 during rotational driving, thereby preventing the band saw 10 from becoming soiled.

[0074] However, it is sufficient that the tar remover moving mechanism 110 is configured to be able to move the tar remover 122 closer to or farther away from the band saw 10. Therefore, the tar remover moving mechanism 110 can be configured with an actuator other than an air cylinder, such as a hydraulic cylinder, an electromagnetic solenoid, or an electric motor. The tar remover moving mechanism 110 can also be configured to use a mechanical structure such as a link mechanism so that the tar remover 122 can be moved closer to or farther away from the band saw 10 by manual operation by an operator.

[0075] Furthermore, in the above embodiment, the tar removal device 100 is configured so that the tar remover 122 and the tar remover opposing body 124 are moved toward or away from the band saw 10 by manual operation by an operator using the operator 113. However, the tar removal device 100 can also be configured so that the operator 113 is omitted and the tar remover 122 and the tar remover opposing body 124 are moved toward or away from the band saw 10 by automatic control using a band saw machine. Specifically, the band saw machine can be configured so that the tar remover 122 and the tar remover opposing body 124 are moved toward or away from the band saw 10 in conjunction with the rotational drive of the band saw 10. In this case, the band saw machine can also link the operation of the auxiliary material by the auxiliary material output tool 130 to the rotational drive of the band saw 10.

[0076] Furthermore, in the above embodiment, the auxiliary material output tool 130 is configured to spray tap water onto the band saw 10. However, the auxiliary material output tool 130 can output a liquid or gas that can assist in removing tar from the band saw 10. Therefore, the auxiliary material output tool 130 can output, for example, water other than tap water (alkaline ionized water or pure water), a liquid such as ethanol, alcohol, alkaline detergent or oil, a gas such as air or an inert gas, or a mixture of these liquids and gases.

[0077] Furthermore, in the above embodiment, the tar removal device 100 is configured such that the device-side base 102 of the base body 101 has the attachment body connecting portion 102a and the tar remover-side base 103 has the elongated hole 103a, thereby making it possible to adjust the position and orientation of the tar remover 122 and the tar remover opposing body 124 relative to the band saw 10. In other words, the attachment body connecting portion 102a and the elongated hole 103a correspond to the tar remover adjustment mechanism of the present invention. However, the tar removal device 100 can also omit the tar remover adjustment mechanism, thereby fixing the position and orientation of the tar remover 122 and the tar remover opposing body 124 within the band saw device.

[0078] In the above embodiment, the tar removal device 100 is configured to be detachable from the band saw device by having the device mounting body 105 on the device-side base 102 of the base body 101. However, the tar removal device 100 can also be fixedly provided on the band saw device so as not to be detachable.

[0079] In the above embodiment, the tar remover 122 and the tar remover opposing body 124 are positioned upstream of the area where the band saw cuts the wood. However, the tar remover 122 and the tar remover opposing body 124 can also be positioned downstream of the area where the band saw cuts the wood.

[0080] Furthermore, in the above embodiment, the auxiliary material output tool 130 is arranged upstream of the area where the band saw machine cuts wood in the rotational drive direction of the band saw 10. However, the auxiliary material output tool 130 can also be arranged downstream of the area where the band saw machine cuts wood in the rotational drive direction of the band saw 10 instead of or in addition to being arranged upstream.

[0081] In the above embodiment, the tar removal device 100 is configured to include the auxiliary material output tool 130. However, the tar removal device 100 may be configured without the auxiliary material output tool 130.

[0082] In the above embodiment, the tar removing device 100 is applied to a band saw that cuts wood into discs. However, it goes without saying that the tar removing device 100 can be applied to a band saw that cuts wood into straight or curved lines.

[0083] Furthermore, in the above embodiment, the tar removal device 100 is applied to a band saw machine in which the band saw 10 is driven to rotate in a circular (including elliptical) orbit. However, the tar removal device 100 can also be applied to a band saw machine in which the band saw 10, which does not extend in a circular shape but rather reciprocates in a straight line. The tar removal device 100 can also be applied to wood cutting saws other than the band saw 10, specifically, circular saw machines that cut wood with a circular saw having a saw blade formed on the outer periphery of a disk. In other words, the tar removal device 100 can be widely applied to wood cutting saw machines that cut wood using the band saw 10 or a circular saw. [Explanation of symbols]

[0084] 10...wood cutting saw (band saw), 10a...main body, 10b...blade part, 20...Saw parts, 100...tar removal device, 101...base body, 102...device side base, 102a...mounting body connecting portion, 103...tar remover side base, 103a...long hole, 104...bolt, 105...device mounting body, 105a...base mounting portion, 105b...saw machine mounting portion, 105c...separation piece, 106...bolt, 107...bolt, 110… Soot removal tool movable mechanism, 111… Compressor, 112… Solenoid valve, 113… Operator, 121… Soot removal tool holder, 121a… Holder hole, 122, 122a, 122b… Soot removal tools, 123… Soot removal tool opposing body holder, 123a… Mounting surface, 124… Soot removal tool opposing body, 124a… Body receiving part, 124b… Relief part, 130… Auxiliary material output tool, 131… Pipe, 131a… Manual valve, 132… Water supply pump, 133… Auxiliary material tank, 140… Soot removal tool, 141… Contact surface, 141a… End part, 142… Through hole.

Claims

1. A pitch removing device installed for a reciprocatingly or rotationally driven saw for cutting wood and removing pitch adhering to the wood cutting saw, comprising: a first pitch removing tool that contacts the wood cutting saw and removes the pitch; a pitch removing tool moving mechanism that approaches or separates the first pitch removing tool with respect to one side surface of both side surfaces of the wood cutting saw. The pitch removing device is characterized by this.

2. In the pitch removing device according to Claim 1, further comprising: a pitch removing tool facing member that is disposed opposite to the first pitch removing tool via the wood cutting saw and contacts the other side surface of both side surfaces of the wood cutting saw. The pitch removing device is characterized by this.

3. In the pitch removing device according to Claim 2, the pitch removing tool facing member: is non-contact with the blade portion of the wood cutting saw. The pitch removing device is characterized by this.

4. In the pitch removing device according to Claim 2, the pitch removing tool facing member: is a second pitch removing tool that contacts the other side surface of both side surfaces of the wood cutting saw and removes the pitch. The pitch removing device is characterized by this.

5. In the pitch removing device according to Claim 2, further comprising: a facing member moving mechanism that approaches or separates the pitch removing tool facing member with respect to the other side surface of both side surfaces of the wood cutting saw. The pitch removing device is characterized by this.

6. In the pitch removing device according to Claim 1, the pitch removing tool moving mechanism: displaces the first pitch removing tool by driving an air cylinder. The pitch removing device is characterized by this.

7. In the pitch removing device according to Claim 1, further comprising: an auxiliary material output tool that outputs a liquid or gas that assists in removing the pitch with respect to the wood cutting saw. The pitch removing device is characterized by this.

8. In the pitch removing device according to Claim 1, further comprising: a pitch removing tool adjusting mechanism that adjusts at least one of the position and orientation of the first pitch removing tool with respect to the wood cutting saw. The pitch removing device is characterized by this.

9. A saw bench for cutting wood by a reciprocatingly or rotationally driven saw for cutting wood, comprising: the pitch removing device according to any one of Claims 1 to 8. The saw bench for cutting wood is characterized by this.

10. In the saw bench for cutting wood according to Claim 9, the pitch removing device: A saw bench for cutting wood, characterized in that the tar removing tool movable mechanism operates in conjunction with the reciprocating drive or rotational drive of the saw for cutting wood.

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