JP2016101654A - Surface treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surface treatment device capable of linearly moving a machine work tool for deburring, finishing the edge of the cutting end or polishing a surface of a product, in the present invention.SOLUTION: A machine work tool 35 is installed in an attachment 41a of an endless roller chain 41. A guide 43 is provided for guiding travel of the machine work tool 35. The guide 43 is provided in an area where the machine work tool 35 installed in the endless roller chain 41 contacts with a work W when the endless roller chain 41 travels between a driving sprocket 28 and a driven sprocket 29. The guide 43 guides so that the machine work tool 35 can linearly move in a machine work area.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a deburring of a cut end of a long or flat workpiece, edge finishing of a cut end, or a surface treatment apparatus for polishing a surface of a product.

  Conventionally, Patent Document 1 discloses a machining apparatus for polishing or deburring a band-shaped or plate-shaped metal workpiece.

  The polishing or deburring machining apparatus of Patent Document 1 is provided with a rotation drive device. The rotation drive device drives a belt and a polishing belt provided outside the belt. The belt and the polishing belt are configured to travel linearly in the machining area by a rotary drive device and to machine the workpiece with the polishing belt.

  In the region where the workpiece to be machined is placed, the belt is guided through a plurality of rotatable rollers provided at appropriate intervals inside the belt. The rotatable roller is attached to a metal fitting provided rotatably. A spring element is provided in the metal fitting, and the metal fitting is pushed by a spring force, and the belt and the polishing belt are pushed outward (on the machining region side) by a roller provided on the metal fitting. The abrasive belt is configured to push against the workpiece with a constant force. In addition, tension is applied to the polishing belt via a tension device.

Special table 2009-507664 gazette

  However, the above-described invention has the following problems.

  When the belt is operated for a long time, the portion in contact with the pulley, that is, the inner surface of the belt is worn. When the inner surface of the belt is worn, the roller presses the belt by the spring force of the spring element, so the belt and the polishing belt (machining tool) are pressed by the spring element, and the machining position of the polishing belt is Moving. That is, the position of the polishing belt in the height direction changes. In such a state, the incorporated length of the spring element changes and the force pushing the workpiece with the abrasive belt changes. Therefore, there is a problem that the quality of machining (surface treatment) becomes unstable.

  In order to process a wide workpiece, the distance between the driving pulley and the driven pulley becomes long, so the belt is likely to hang due to its own weight. When the inner surface of the belt is worn, the belt is more likely to sag. The amount of drooping of the belt is greater at a remote location than at a location near the drive pulley or driven pulley. The polishing belt provided outside the belt also hangs down in the same manner as the belt. That is, the positional relationship between the polishing belt and the workpiece is different between the machining position near the drive pulley or the driven pulley and the machining position away from the drive pulley or the driven pulley. In other words, when processing a wide workpiece, there is a problem that the polishing belt cannot travel linearly in the machining area due to the weight of the belt or the wear of the belt, and the quality of machining becomes unstable. is there.

  When the punch is worn by press working and the clearance between the punch and the die increases, a large burr is generated. That is, a burr having a large burr base thickness and a high burr height is generated. Large burrs generated at the end of the workpiece may damage the polishing belt when it hits the side of the polishing belt. When the polishing belt hangs down due to the weight of the belt or wear of the belt, the end surface of the polishing belt tends to hit a large burr, and the end surface of the polishing belt is easily damaged.

  Since tension is always applied to the polishing belt during operation of the apparatus, if a small scratch is made on the side surface of the polishing belt, the stress is concentrated on that portion, and the scratch further progresses. Then, the polishing belt is damaged.

  An abrasive belt with a long circumference is used to process a wide workpiece. If the polishing belt is damaged or damaged by a large burr, there is a problem that even if the abrasive particles of the polishing belt are not worn, it is necessary to replace the polishing belt having a long circumference, which is economically burdensome. .

  In addition, when a brush is provided on the outer peripheral surface of the polishing belt to finish the edge of the cut end of the workpiece, the angle in the direction perpendicular to the moving direction of the polishing belt or the angle in the oblique direction is polished. Since the bristle provided on the belt directly hits the corner, it is possible to finish the edge. However, the corner in the direction parallel to the traveling direction of the polishing belt has a problem that it is difficult to finish the edge because the bristle provided on the polishing belt does not easily hit the corner.

  An object of the present invention is to solve the problems of the prior art as described above. Specifically, even when processing a wide workpiece, it provides a surface treatment device in which a machining tool for deburring, cutting edge finishing or polishing the surface of a product can move linearly. The purpose is to do. Moreover, an object of this invention is to provide the surface treatment apparatus which can be cheaply replaced when a machining tool is damaged. Another object of the present invention is to provide a surface treatment apparatus capable of performing edge finishing of a workpiece corner in a direction orthogonal to a moving direction of a machining tool and a workpiece corner in a parallel direction. To do.

  In order to solve the above-mentioned problem, the invention according to claim 1 is for deburring the cut end of a long or flat workpiece, finishing the edge of the cut end of the workpiece, or polishing the surface of the workpiece. The surface treatment apparatus includes a machining unit, and the machining unit includes a machining tool for machining the workpiece and a chain on which the machining tool is attached in a replaceable manner. And a rotation drive device that rotationally drives the chain.

  The invention according to claim 2 is characterized in that the machining tool is guided by a guide and configured to be linearly movable in a machining area of the workpiece.

  The invention according to claim 3 is characterized in that the machining tool is configured to be movable while rotating in the machining region of the workpiece.

The invention according to claim 4 is characterized in that the machining tool is configured to be swingable in a direction substantially perpendicular to the moving direction of the machining tool or to be reciprocally movable.

  The invention according to claim 5 is characterized in that the machining tool is configured to be movable up and down.

  The invention described in claim 6 is characterized in that a pinch roll for feeding the workpiece is provided so as to be movable up and down.

  According to a seventh aspect of the present invention, the machining unit is disposed above and below the workpiece passes, and each machining tool performs deburring, edge finishing, or polishing of the upper surface and the lower surface of the workpiece. It is configured to be possible.

  The invention according to claim 8 is characterized in that the machining tool for machining the upper surface of the workpiece and the machining tool for machining the lower surface of the workpiece are attached to the chain with a predetermined interval in the longitudinal direction of the chain, The machining tool for machining the upper surface of the workpiece in the machining area and the machining tool for machining the lower surface of the workpiece in the machining area face each other when viewed from the traveling direction of the machining tool. When the machining tool for machining the upper surface of the workpiece and the machining tool for machining the lower surface of the workpiece are in the machining region, the machining tools are arranged in a staggered arrangement. It is configured to move in the same direction while maintaining the state.

  The invention described in claim 9 is characterized in that a burr or a dust collector for collecting dust or / and a transport device for transporting the workpiece are provided.

  The invention according to claim 10 is a surface treatment apparatus for deburring the cut end of a long or flat workpiece, edge finishing of the cut end of the workpiece, or polishing the surface of the workpiece, A moving body that is endlessly connected and circulates to machine the workpiece is configured to be able to swing or reciprocate in a direction substantially perpendicular to the direction in which the moving body circulates. It is characterized by being.

  According to the first aspect of the present invention, since the machining tool is replaceably attached to the chain, even if the machining tool is damaged, it is only necessary to replace the damaged machining tool, which can contribute to cost reduction.

  According to the invention of claim 2, since the machining tool moves along the guiding guide, even when processing a wide workpiece, or there is chain elongation due to chain wear. However, the machining tool can move linearly in the machining area without sagging. Therefore, since the machining tool always contacts the workpiece at the same position (height), the quality of deburring, edge finishing or polishing is stabilized.

  According to the invention of claim 3, the machining tool moves while rotating in the machining area. Therefore, if the machining tool is made into a brush shape, the brush hair directly hits a corner perpendicular to the workpiece supply direction or a corner parallel to the workpiece supply direction. And parallel corner edge finishing or deburring.

  According to the invention of claim 4, the machining tool swings or reciprocates while moving linearly in the machining area. Therefore, if the machining tool is made into a brush shape, the brush hair directly hits a corner perpendicular to the workpiece supply direction or a corner parallel to the workpiece supply direction. And parallel corner edge finishing or deburring.

  According to invention of Claim 5, the machining tool is comprised so that raising / lowering is possible. Therefore, since the machining tool can be moved up and down to a position corresponding to the thickness of the workpiece, deburring, edge finishing or polishing can be performed even if the thickness of the workpiece changes.

  According to invention of Claim 6, the pinch roll apparatus is comprised so that raising / lowering is possible. Therefore, since the pinch roll can be moved up and down to a position corresponding to the thickness of the workpiece, the workpiece can be sandwiched and fed by the pinch roll even if the thickness of the workpiece changes.

  According to invention of Claim 7, a machining unit is arrange | positioned in the upper direction and the downward direction through which a workpiece | work passes, and it is comprised so that a machining tool may process the upper surface and lower surface of a workpiece | work. Therefore, the front and back of the workpiece can be deburred, and edge finishing or polishing can be performed.

  According to invention of Claim 8, the machining tool which processes the upper surface of a workpiece | work, and the machining tool which processes the lower surface of a workpiece | work are arrange | positioned facing each other. Therefore, since the interval between the pinch rolls arranged on both sides of the machining tool can be narrowed, it is possible to deburr, edge finish or polish a workpiece having a shorter length. In addition, when performing surface treatment on thin workpieces, the machining tool for machining the upper surface of the workpiece and the machining tool for machining the lower surface of the workpiece do not contact each other, so there is no wear due to contact between the machining tools. .

  According to the ninth aspect of the present invention, since the dust collector is provided, it is possible to prevent the working environment from being deteriorated by burrs or dust. Since the transfer device is provided, the workpiece can be automatically loaded and unloaded, so that deburring, edge finishing or polishing of the workpiece can be efficiently performed.

  According to the tenth aspect of the present invention, the moving body that surface-treats the workpiece swings and reciprocates while moving in the machining region. For this reason, since the moving body directly hits a corner perpendicular to the workpiece supply direction or a corner parallel to the workpiece supply direction, edge finishing or deburring of the corner orthogonal to the workpiece supply direction and the parallel corner is performed. Can do.

It is a front view of the surface treatment apparatus which showed the Example. It is the side view of the surface treatment apparatus which showed the Example. It is the top view of the surface treatment apparatus which showed the Example. It is the top view which showed the pinch roll raising / lowering mechanism of the Example. It is the top view which showed the machining unit of the Example. It is sectional drawing of the surface treatment apparatus which showed the Example. It is the figure which showed the machining tool of the Example. It is the figure which showed the machining tool of the Example. It is the figure which showed the machining unit raising / lowering mechanism and pinch roll raising / lowering mechanism of the Example. It is the figure which showed the machining tool of the Example. It is the figure which showed the machining tool of the Example. It is the figure which showed the machining tool of the Example. It is the figure which showed the machining tool which autorotates around the vertical axis of an Example. It is the figure which showed the machining tool which autorotates around the horizontal axis of an Example. It is the figure which showed the machining unit of the Example.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. As an example of a surface treatment apparatus for deburring a cut end of a long or flat workpiece according to an embodiment of the present invention, edge finishing of a cut end of a workpiece, or polishing of a surface of a workpiece, machining A method for performing deburring or edge finishing of the workpiece W using a brush composed of a pedestal 36 and brush bristles 37 as the tool 35 will be described.

  As shown in FIGS. 1 to 3, the surface treatment apparatus is configured to be able to swing the main body frame 21, the workpiece carry-in conveyor 111 on which the workpiece W is loaded and loaded, the machining unit 6, and the machining unit 6. A swing mechanism 8, a pinch roll device 10 that feeds the workpiece W in between, a machining unit lifting mechanism 9, and a workpiece carry-out conveyor 126 that carries the workpiece W out are provided.

  In order to deburr, edge finish or polish the upper surface of the workpiece W, a machining unit 6 and a swing mechanism 8 are provided above the workpiece W, and the machining unit 6, swing mechanism 8 and A machining unit elevating mechanism 9 configured to be able to raise and lower the pinch roll device 10 is provided.

  Further, in order to deburr, edge finish or polish the lower surface of the workpiece W, a machining unit 6 and a swing mechanism 8 are provided below the workpiece W, and the machining unit 6 and the swing mechanism are provided. A machining unit raising / lowering mechanism 9 configured to freely move up and down 8 is provided.

  When deburring, edge finishing, or polishing only one side of the workpiece W, for example, the upper surface, the machining unit 6, the swinging mechanism 8, the machining unit lifting mechanism 9, and the pinch roll device are provided only above the workpiece W. 10 may be provided. When only the upper surface of the workpiece W is polished, the machining unit 6, the machining unit lifting mechanism 9, and the pinch roll device 10 may be provided only above the workpiece W.

  The main body frame 21 includes a rectangular parallelepiped frame 22 having a rectangular parallelepiped shape, and a rectangular frame 23 having a rectangular shape attached to the inside of the rectangular parallelepiped frame 22.

  As shown in FIGS. 5 to 8, the machining unit 6 mainly includes a machining frame 27, a rotation drive device 7, and a machining tool 35. The rotary drive device 7 mainly includes a speed reducer 25, a servo motor 26, a drive sprocket 28, a driven sprocket 29, an endless roller chain 41, a guide 43, a guide 44, a guide bracket 45, and a guide bracket 46. It consists of.

  A reduction gear 25 is attached to one side of the machining frame 27. And the output shaft of the reduction gear 25 is arrange | positioned so that it may rotate around a horizontal axis. A drive sprocket 28 is fixed to the output shaft of the speed reducer 25. A servo motor 26 is attached to the speed reducer 25. On the other side of the machining frame 27, a bracket 30 is provided so as to be movable so that the endless roller chain 41 can be stretched. A driven sprocket 29 is fixed to a shaft 30a of the bracket 30 so as to be rotatable about a horizontal axis.

  An endless roller chain 41 is stretched between the drive sprocket 28 fixed to the output shaft of the speed reducer 25 and the driven sprocket 29.

  In this embodiment, as shown in FIGS. 7 and 8, the endless roller chain 41 is a chain with a side roller having an attachment 41a. A machining tool 35 is attached to the attachment 41a in a replaceable or detachable manner. The chain with side rollers has rotatable side rollers 42 on both sides of the chain. When the servo motor 26 is rotationally driven, the machining tool 35 attached to the attachment 41a of the endless roller chain 41 circulates and moves.

  The machining tool 35 is configured to be movable in the machining area of the workpiece W by the rotation drive device 7. As shown in FIG. 3, the machining tool 35 is configured to move obliquely or orthogonally (Y direction) with respect to the supply direction X of the workpiece W. The machining tool 35 is configured to be capable of deburring the workpiece cutting edge, finishing the cutting edge of the workpiece, or polishing the workpiece surface by contacting the workpiece W. The machining tool 35 is configured to move substantially parallel to the machining surface of the workpiece W. The machining area refers to an area where the machining tool 35 is machined in contact with the workpiece W.

  As shown in FIG. 7, the machining tool 35 used for deburring or edge finishing the workpiece W is composed of a pedestal 36 and brush bristles 37. The pedestal 36 is attached to the attachment 41a of the endless roller chain 41 in a replaceable or detachable manner. On the brush bristle mounting surface 36a of the base 36, brush bristle 37 is arranged.

  The brush bristles 37 are made of synthetic fibers containing abrasive grains. Further, the bristle 37 may use a metal wire instead of a synthetic fiber.

  The machining tool 35 may be a commercially available polishing tool or an industrial brush attached to the pedestal 36. For example, a cup-type brush may be attached to the pedestal 36 in a replaceable or detachable manner using screws. Alternatively, the brush may be fitted to the pedestal 36 and fixed detachably by the attractive force of a magnet attached to the brush and the pedestal 36.

  When the mounting pitch between the drive sprocket 28 and the driven sprocket 29 is narrow, the machining tool 35 attached to the endless roller chain 41 can move substantially linearly in the machining area of the workpiece W without a guide. it can. When the mounting pitch is wide, the endless roller chain 41 hangs down by its own weight, so that it cannot move linearly in the machining area. However, when the guide is provided, the machining tool 35 is guided by the guide, so that the machining area of the workpiece W can be linearly moved even if the mounting pitch is wide.

  In order to guide the traveling of the endless roller chain 41 or to move the machining tool 35 linearly, a guide 43 and a guide 44 are provided. When the endless roller chain 41 travels between the drive sprocket 28 and the driven sprocket 29, the guide 43 is located in a region where the machining tool 35 attached to the endless roller chain 41 contacts the workpiece W, that is, in the machining region. Is provided. The guide 43 guides the side rollers 42 of the endless roller chain 41 so as to hold up and down so that the endless roller chain 41 does not sag and / or does not float due to a reaction force when processing the workpiece W.

  The guide 43 has a U-shape and supports the side rollers 42 on both sides of the endless roller chain 41 in the vertical direction so that the machining tool 35 can travel linearly. The guide 43 is attached to a guide bracket 45, and the guide bracket 45 is fixed to the machining frame 27.

  When machining is possible without a guide for guiding the upper side of the side roller 42 due to a small reaction force when machining the workpiece W, a guide capable of supporting only the lower side of the side roller 42 of the endless roller chain 41 is used. May be.

  The guide 44 is provided in a region where the machining tool 35 attached to the endless roller chain 41 does not contact the workpiece W when the endless roller chain 41 travels between the drive sprocket 28 and the driven sprocket 29. The guide 44 guides the side rollers 42 of the endless roller chain 41 from below so that the endless roller chain 41 does not hang down.

  In order to move the machining tool 35 linearly, the side roller 42 of the endless roller chain 41 is guided by the guide 43 and the guide 44. However, as shown in FIG. The side roller 42 may be guided by the guide 43 and the guide 44. The machining tool 35 is attached to the endless chain 40 in a replaceable or detachable manner. A total of four side rollers 42 are provided on each side of the machining tool 35 so that the machining tool 35 can be moved linearly by a guide. Then, guides 43 for guiding the side rollers 42 on both sides are attached to the guide bracket 45. The guide bracket 45 is fixed to the machining frame 27. As described above, when the machining tool 35 is provided with the rotatable side roller 42, the machining tool 35 can move linearly in the machining area by the guide 43.

  The guide 44 is provided in a region where the machining tool 35 attached to the endless roller chain 41 does not contact the workpiece W when the endless roller chain 41 travels between the drive sprocket 28 and the driven sprocket 29. The guide 44 guides the side rollers 42 of the machining tool 35 from below so that the machining tool 35 does not hang down.

  The rotary drive device 7 is configured to rotate the output shaft of the speed reducer 25 about the horizontal axis, but may be configured to rotate the output shaft of the speed reducer 25 about the vertical axis. The drive sprocket 28 is fixed to the output shaft of a speed reducer arranged to rotate about the vertical axis, and the driven sprocket 29 is attached to the bracket 30 so as to be rotatable about the vertical axis. An endless roller chain 41 is stretched between the drive sprocket 28 fixed to the output shaft of the speed reducer 25 and the driven sprocket 29. The endless roller chain 41 has an attachment 41a. The machining tool 35 is attached to the attachment 41a in a replaceable or detachable manner.

  The machining tool 35 is provided with a plurality of side rollers 42, and a guide for guiding the side rollers 42 is configured so that the machining tool 35 can move linearly between the forward path and the backward path. When the output shaft of the speed reducer 25 rotates in a fixed direction, the machining tool 35 can process the workpiece W in both the forward path and the backward path, so that work efficiency is improved.

  As shown in FIG. 8, the machining tool 35 for deburring or polishing the surface of the cut end of the workpiece W includes a pedestal 36, an elastic body 38, and a polishing cloth 39. One of the pedestals 36 is attached to the attachment 41a of the endless roller chain 41 in a replaceable or detachable manner. An elastic body 38 is fixed to the other side of the pedestal 36. A polishing cloth 39 for polishing the workpiece W is attached to the elastic body 38. Then, if the polishing cloth 39 is damaged, it is replaced. The polishing cloth 39 is inclined at the end in the direction in which the workpiece W enters, so that the workpiece W can easily enter. Further, the structure may be such that both ends of the polishing pad 39 are sandwiched between clips and attached by one touch. By making it possible to replace or replace in this way, even if the polishing cloth 39 of the machining tool 35 for polishing the workpiece is damaged by a large burr, it is economical because only the damaged polishing cloth 39 needs to be replaced. It is.

  Further, in order to remove dross attached to the lower part of the workpiece W when plasma cutting or laser cutting is performed, the machining tool 35 may be attached to the pedestal 36 in a replaceable manner with a scraper (not shown).

  A concave groove having the shape of the attachment 41a may be provided on both surfaces of the base 36 of the machining tool 35 so that the groove of the base 36 can be inserted into the attachment 41a. When the ball plunger is built into the pedestal 36 and the groove of the pedestal 36 is inserted into the attachment 41a, the ball plunger ball fits into the attachment hole of the attachment 41a so that the pedestal 36 and the attachment 41a can be exchanged or detachable. You may make it the structure which hold | maintains. Further, instead of the ball plunger, a magnet may be attached to the base 36 so as to be attracted to the attachment 41a, and the base 36 may be detachable.

  As shown in FIG. 11, the endless roller chain 41 may use an RS-type chain with an attachment. Moreover, as shown in FIG. 12, the endless roller chain 41 may use an R roller by pitch chain with an attachment.

  As shown in FIG. 13, the machining tool 35 may include a pedestal 36, a rack 47, a pinion 48, a cup brush 49, and a pedestal guide 50. The pinion 48 has a rotation shaft 48a at an end, and the rotation shaft 48a is attached to the pedestal 36 so as to be rotatable around a vertical axis. A cup brush 49 is replaceably or detachably attached to one end of the pinion 48. The pedestal guide 50 guides the pedestal 36 so that it can move stably.

  In the cup brush 49, brush hairs are arranged circumferentially. The rack 47 is attached to the machining frame 27 so that the machining area meshes with the gears of the pinion 48. The rack 47 has substantially the same length as the guide 43 that guides the side roller 42 of the endless roller chain 41.

  When the machining tool 35 moves in the machining area, the pinion 48 meshes with the rack 47, so that the pinion 48 can move while rotating by the rack and pinion mechanism. Then, the cup brush 49 moves linearly by the rotation driving device 7 while rotating.

  The cup brush 49 moves perpendicularly to the supply direction of the workpiece W while rotating in the machining area. Therefore, the bristle of the cup brush 49 directly hits the corner perpendicular to the workpiece W supply direction or the corner parallel to the workpiece W supply direction. It becomes possible to process the edge finishing or deburring of the orthogonal corner and the parallel corner with high quality.

  Further, the machining tool 35 may be provided with an abrasive (not shown) for polishing the surface of the workpiece W instead of the cup brush 49. Abrasive material is made of non-woven abrasive material that is hardened by wrapping the entangled fibers with the abrasive material, or abrasive cloth paper that is coated with abrasive material on the woven fabric that becomes the base fabric and fixed with an adhesive Use what consists of.

  Further, as shown in FIG. 14, the machining tool 35 may include a pedestal 36, a rack 47, a pinion 48, a rotating shaft 60, and a roll brush 61. The pinion 48 is fixed to the end of the rotating shaft 60. The rotation shaft 60 is attached to the pedestal 36 so as to be rotatable around a horizontal axis. A roll brush 61 is replaceably or detachably attached to one end of the rotating shaft 60.

  On the roll brush 61, strip-shaped polishing cloths are arranged in a circumferential shape. The rack 47 is attached to the machining frame 27 so that the machining area meshes with the pinion 48. The rack 47 has substantially the same length as the guide 43 that guides the side roller 42 of the endless roller chain 41.

  When the machining tool 35 moves in the machining area, the pinion 48 is engaged with the rack 47. The roll brush 61 connected via the pinion 48 and the rotating shaft 60 by the rack and pinion mechanism can be moved linearly in the machining area by the rotation driving device 7 while rotating. At this time, the strip-shaped polishing cloth directly hits a corner perpendicular to the supply direction of the workpiece W or a corner parallel to the supply direction of the workpiece W by centrifugal force. It becomes possible to process the edge finishing or deburring of the orthogonal corner and the parallel corner with high quality.

  As shown in FIG. 15B, in order to deburr, edge finish or polish the upper surface of the work W, in the longitudinal direction of the endless roller chain 41 included in the machining unit 6 provided above the work W passes. The attachment 41a is disposed at a predetermined interval. A machining tool 35 is replaceably or detachably attached to the attachment 41a. Further, the attachment 41a has a predetermined interval also in the longitudinal direction of the endless roller chain 41 of the machining unit 6 provided below where the workpiece W passes in order to deburr, edge finish or polish the lower surface of the workpiece W. Arranged. The machining tool 35 is also attached to the attachment 41a in a replaceable or detachable manner.

  As shown in FIG. 15A, when viewed from the advancing direction of the machining tool 35, the machining tool 35 for machining the upper surface of the workpiece W in the machining area and the lower surface of the workpiece W in the machining area are machined. It arrange | positions so that the machining tool 35 to face may be faced. That is, when the machining tool 35 in the machining region is viewed from the traveling direction of the machining tool 35, the machining tool 35 that processes the upper surface of the workpiece W and the machining tool 35 that processes the lower surface of the workpiece W are vertical. On the line.

  The servo motor 26 provided in the machining unit 6 above the workpiece W and the servo motor 26 provided in the machining unit 6 below the workpiece W rotate in electrical synchronization. To drive. And the area | region where the machining tool 35 attached to the attachment 41a of the upper endless roller chain 41 in which the workpiece | work W passes contacts the workpiece | work W, ie, the moving direction when it exists in a machining area | region, and the workpiece | work W pass. The area in which the machining tool 35 attached to the attachment 41a of the lower endless roller chain 41 is in contact with the workpiece W, that is, the moving direction when the machining tool 35 is in the machining area is the same direction.

  When the upper and lower machining tools 35 through which the workpiece W passes are in the machining area, the lower machine through which the workpiece W passes between the upper and adjacent machining tools 35 through which the workpiece W passes. It synchronizes so that it may become a position where the processing tool 35 can enter. That is, the upper and lower machining tools 35 through which the workpiece W passes move in a machining area while maintaining the state in which the machining tools 35 are arranged in a staggered manner.

  A workpiece W is sandwiched between two rows of pinch rolls 65 and a pinch roll 66 on the carry-in side, which will be described later, and an end portion of the workpiece W is machined with a machining tool 35. At this time, the front and back of the workpiece W are machined in a state where the workpiece W is sandwiched between the brush hairs 37 of the upper and lower machining tools 35. Therefore, even if the plate thickness of the workpiece W is thin, W does not warp greatly.

  As shown in FIGS. 4 to 6, the swing mechanism 8 that swings the machining unit 6 mainly includes a swing motor 51, a swing shaft 52, a swing shaft 53, a bearing 54, and a bearing 55. And a disk 56, a connecting rod 57, and a link ball 58.

  The swing motor 51 is attached to the longitudinal center of the lifting frame 98 with the output shaft of the swing motor 51 facing the machining unit 6 side. A disk 56 is attached to the output shaft, and a link ball 58 (spherical bearing) is attached at a position eccentric from the center of the disk 56. A link ball 58 is also attached to the machining frame 27 of the machining unit 6, and the two link balls 58 are connected to each other by a connecting rod 57.

  The machining frame 27 has a swing shaft 52 at one end and a swing shaft 53 at the other end, and the machining unit 6 can be rotated around a horizontal axis or mounted around an axis parallel to the work surface of the workpiece. It has been. A bearing 54 and a bearing 55 are attached to both sides of the elevating frame 98 so as to support the swing shaft 52 and the swing shaft 53.

  When the swing motor 51 is driven to rotate, the disk 56 rotates and the machining unit 6 connected by the link ball 58 and the connecting rod 57 swings about the swing shaft 52 and the swing shaft 53. The machining tool 35 that is replaceably or detachably attached to the endless roller chain 41 of the rotational drive device 7 of the machining unit 6 that is configured to swing freely moves while swinging in the machining area. be able to. The machining tool 35 is configured to be swingable in a direction substantially orthogonal to the moving direction of the machining tool 35.

  A reciprocating mechanism (not shown) that reciprocates the machining unit 6 will be described instead of the rocking mechanism 8 that rocks the machining unit 6. The swing shaft 52 and the bearing 54 are changed to guides (not shown), the moving side of the guide is attached to the machining frame 27, and the fixed side of the guide is attached to the lifting frame 98. Further, the swing shaft 53 and the bearing 55 are changed to guides (not shown), the moving side of the guide is attached to the machining frame 27, and the fixed side of the guide is attached to the lifting frame 98. Each guide is attached so that the machining frame 27 can move in a direction perpendicular to the moving direction of the machining tool 35.

  The swing motor 51 is changed to a reciprocating motor (not shown). When the reciprocating motor is driven to rotate, the disk 56 rotates and the machining unit 6 connected by the link ball 58 and the connecting rod 57 reciprocates in a direction substantially orthogonal to the moving direction of the machining tool 35. The machining tool 35 that is replaceably or detachably attached to the endless roller chain 41 of the rotational drive device 7 of the machining unit 6 that is configured to reciprocate is moved while reciprocating in the machining area. be able to. The machining tool 35 is configured to reciprocate in a direction substantially orthogonal to the moving direction of the machining tool 35.

  Further, the driving sprocket 28 and the driven sprocket 29 of the machining unit 6 are changed to pulleys (not shown), and the endless roller chain 41 connected endlessly is changed to an endless belt (not shown) connected endlessly. Thus, the endless belt may be rotated by the rotation driving device 7. Brush bristles (not shown) are attached to the outer peripheral surface of the endless belt, and the bristles that are circulated, that is, the moving body move in the machining region so that the workpiece can be machined. That is, the moving body that circulates is configured to be capable of deburring the cut end of the workpiece, finishing the edge of the cut end of the workpiece, or polishing the surface of the workpiece.

  Then, by providing a swing mechanism 8 that swings the machining unit 6, the movable body is configured to be swingable in a direction substantially orthogonal to the direction in which the movable body circulates. Further, by providing a reciprocating mechanism for reciprocating the machining unit 6, the moving body is configured to reciprocate in a direction substantially orthogonal to the direction in which the moving body circulates.

  As shown in FIGS. 2 to 6 and 9, the pinch roll device 10 mainly includes a plurality of rows of upper and lower pairs of pinch rolls 65, pinch rolls 66, and pinch rolls arranged on both sides of the machining unit 6. The lift frame 68, the pinch roll fixing frame 69, the pinch roll lifting mechanism 80, and the motor 67 for driving the pinch roll are configured. The upper pinch roll 65 is rotatably attached to the pinch roll lifting frame 68 via a bearing 70. The pinch roll 65 is lined with urethane rubber.

  Two sprockets 71 are fixed to the end of the pinch roll 65, and endless chains 72 are alternately wound around the two sprockets 71 fixed to the adjacent pinch rolls 65. A motor 67 for driving the upper pinch roll 65 is attached to the pinch roll lifting frame 68. A sprocket 74 is fixed to the end of the pinch roll 65 near the motor 67. A sprocket 75 is fixed to the output shaft of the motor 67. An endless chain 76 is spanned between the sprocket 74 fixed to the end of the pinch roll 65 and the sprocket 75.

  A lower pinch roll 66 is disposed immediately below the upper pinch roll 65. As shown in FIG. 2, the lower pinch roll 66 is rotatably attached to a pinch roll fixing frame 69 via a bearing 70. The pinch roll fixing frame 69 is attached to the rectangular frame 23. The upper surface of the lower pinch roll 66 is set to be approximately the same height as the conveyance surface of the workpiece carry-in conveyor 111 for carrying in a workpiece W described later, and the workpiece W conveyed from the workpiece carry-in conveyor 111 is sent by the pinch roll device 10. Is configured to be possible. The pinch roll 66 is lined with urethane rubber.

  Two sprockets 71 are fixed to the end of the lower pinch roll 66 in the same manner as the upper pinch roll 65, and an endless chain 72 is connected to each of the two sprockets 71 fixed to the adjacent pinch rolls 66. Are alternately routed. A motor 67 for driving the lower pinch roll 66 is attached to the pinch roll fixing frame 69. A sprocket 74 is fixed to the end of the pinch roll 66 near the motor 67.

  A sprocket 75 is fixed to the output shaft of the motor 67. An endless chain 76 is spanned between the sprocket 74 fixed to the end of the pinch roll 66 and the sprocket 75. When the motor 67 attached to the pinch roll lifting frame 68 is rotationally driven, all the upper pinch rolls 65 are rotated. Further, when the motor 67 attached to the pinch roll fixing frame 69 is rotationally driven, all the lower pinch rolls 66 are rotated. Then, the workpiece W can be conveyed while being sandwiched between upper and lower pinch rolls.

  1-4 and FIG. 9, the pinch roll raising / lowering mechanism 80 mainly includes a guide 90, a guide 91, a jack 86, a jack 87, a connecting rod 84, a connecting rod 85, and a speed reducer. 81 and a pinch roll lifting motor 82. Each jack is composed of a trapezoidal screw and a worm gear, and a nut is screwed onto the trapezoidal screw. When the nut is attached to the lifting object and the input shaft of the jack is rotated, the trapezoidal screw is rotated, and the lifting object to which the nut is attached is moved up and down by the screw mechanism.

  On both sides of the pinch roll lifting frame 68, a guide 90 and a guide 91 for guiding the lifting of the pinch roll lifting frame 68 are provided. Each guide is attached to the rectangular frame 23 on the fixed side of the guide, and attached to the pinch roll lifting frame 68 on the moving side. And the pinch roll raising / lowering frame 68 is comprised so that raising / lowering is possible.

  A reduction gear 81 is attached to the center of the lifting frame 98 in the longitudinal direction, and a pinch roll raising / lowering motor 82 as a drive source is attached to the reduction gear 81. Jacks 86 and 87 are attached to both sides of the lifting frame 98. The output shafts on both sides of the speed reducer 81 and the input shafts of the jacks 86 and 87 are connected by a connecting rod 84 and a connecting rod 85. A nut 88 and a nut 89 screwed to a trapezoidal screw of the jack 86 and the jack 87 are respectively attached to both sides of the pinch roll lifting frame 68.

  When the pinch roll lifting motor 82 is driven to rotate, the connecting rod 84 connected to the output shafts on both sides of the speed reducer 81 and the connecting rod 85 rotate. Next, when the input shafts of the jacks 86 and 87 are rotated, the trapezoidal screws of the jacks 86 and 87 are rotated, and the pinch roll lifting frame 68 attached with the nuts 88 and 89 is moved up and down by the screw mechanism. The pinch roll lifting mechanism 80 can adjust the gap between the upper pinch roll 65 rotatably attached to the pinch roll lifting frame 68 and the lower pinch roll 66 so as to correspond to the thickness of the workpiece W. it can.

When the upper motor 67 and the lower motor 67 are driven to rotate, a plurality of pairs of upper and lower pinch rolls 65 and pinch rolls 66 arranged on both sides of the machining unit 6 rotate. And the workpiece | work W can be pinched | interposed into the pinch roll 65 and the pinch roll 66, and the workpiece | work W can be sent to the carrying-out side from the carrying-in side.

  1-4 and FIG. 9, the machining unit lifting mechanism 9 that lifts and lowers the machining unit 6, the swing mechanism 8 and the pinch roll lifting mechanism 80 mainly includes a guide 105, a guide 106, A jack 101, a jack 102, a connecting rod 99, a connecting rod 100, a speed reducer 96, and a lifting motor 97 are configured. Each jack is composed of a trapezoidal screw and a worm gear, and a nut is screwed onto the trapezoidal screw. When the nut is fixed to the lifting object and the input shaft of the jack is rotated, the trapezoidal screw of the jack is rotated, and the lifting object to which the nut is attached is moved up and down by the screw mechanism.

  Guides 105 and 106 are provided on both sides of the lifting frame 98. Each guide has a fixed side of the guide attached to the rectangular frame 23 and a moving side attached to the lifting frame 98. And the raising / lowering frame 98 is comprised so that raising / lowering is possible.

  A reduction gear 96 is attached to the center of the rectangular frame 23 in the longitudinal direction, and a driving motor elevating motor 97 is attached to the reduction gear 96. A jack 101 and a jack 102 are attached to both sides of the rectangular frame 23. The output shafts on both sides of the speed reducer 96 and the input shafts of the jack 101 and the jack 102 are connected by a connecting rod 99 and a connecting rod 100. The nut 103 and the nut 104 that are screwed into the trapezoidal screws of the jack 101 and the jack 102 are fixed to the lifting frame 98.

  When the lifting motor 97 is rotationally driven, the connecting rod 99 and the connecting rod 100 connected to the output shafts on both sides of the speed reducer 96 are rotated. Next, when the input shafts of the jack 101 and the jack 102 are rotated, the trapezoidal screws of the jack 101 and the jack 102 are rotated, and the lifting frame 98 to which the nut 103 and the nut 104 are attached is moved up and down by the screw mechanism.

  The lifting frame 98 is provided with the machining unit 6 so as to be swingable by a swing mechanism 8. The machining unit 6 is provided with a rotation drive device 7 capable of moving the endless roller chain 41. A machining tool 35 is attached to the attachment 41a of the endless roller chain 41 in a replaceable or detachable manner. Thus, the machining tool 35 is configured to be movable up and down by driving the lifting motor 97 of the machining unit lifting mechanism 9.

  As shown in FIGS. 2 and 3, a workpiece carry-in conveyor 111 is provided in front of the pinch roll device 10. The work carry-in conveyor 111 is a transfer device that carries the work W in. A work carry-out conveyor 126 is provided behind the pinch roll device 10. The work carry-out conveyor 126 is a transfer device that carries the work W out. The workpiece carry-in conveyor 111 is mainly composed of an endless belt 112, a driving roller 113, a driven roller 114, a conveyor frame 115, and a motor 116.

  A conveyor frame 115 is attached to the rectangular parallelepiped frame 22, and a driving roller 113 and a driven roller 114 are rotatably attached to the conveyor frame 115. An endless belt 112 is stretched between the driving roller 113 and the driven roller 114. The driven roller 114 is attached to the conveyor frame 115 so as to be movable back and forth so that the endless belt 112 can be stretched.

  A sprocket 117 is fixed to the end of the driving roller 113. A motor 116 is attached to the rectangular parallelepiped frame 22. A sprocket 118 is fixed to the output shaft of the motor 116. An endless chain 119 is spanned between the sprocket 117 and the sprocket 118.

  As shown in FIGS. 2 and 3, the work carry-out conveyor 126 is mainly configured by an endless belt 127, a driving roller 128, a driven roller 129, a conveyor frame 130, and a motor 131. A conveyor frame 130 is attached to the rectangular parallelepiped frame 22, and a driving roller 128 and a driven roller 129 are rotatably attached to the conveyor frame 130. An endless belt 127 is stretched between the driving roller 128 and the driven roller 129. The driving roller 128 is attached to the conveyor frame 130 so as to be movable back and forth so that the endless belt 127 can be stretched.

  A sprocket 132 is fixed to the end of the driving roller 128. A motor 131 is attached to the rectangular parallelepiped frame 22. A sprocket 133 is fixed to the output shaft of the motor 131. An endless chain 134 is stretched between the sprocket 132 and the sprocket 133.

  Casing the upper machining unit 6 through which the workpiece W passes, the swing mechanism 8, the machining unit lifting mechanism 9, the pinch roll device 10, and the pinch roll lifting mechanism 80 so that burrs or dust are not scattered. (Not shown). Further, the lower machining unit 6 through which the workpiece W passes, the swinging mechanism 8, and the machining unit elevating mechanism 9 are surrounded by a casing (not shown). Each casing is provided with a door that can be opened and closed for maintenance.

  A dust collector (not shown) is connected to each casing. The suction duct of the dust collector is connected in the vicinity of the casing through which the machining tool 35 passes, and is provided to collect burrs or dust. The return duct of the dust collector is connected to the casing. The air after the burr or dust is collected by the dust collector is returned to the casing by the return duct, and used to blow off the burr or dust adhering to the machining tool 35.

  The operation of the embodiment in which the machining units 6 are respectively disposed above and below the workpiece W will be described. Prior to machining the workpiece W, the upper and lower lifting motors 97 are rotationally driven in advance so that the machining tool 35 contacts the workpiece W by an optimum amount according to the thickness of the workpiece W. 98 is moved up and down. Next, the pinch roll raising / lowering motor 82 is rotationally driven to a position at which the workpiece W can be sandwiched and fed by the pinch roll 65 and the pinch roll 66 to raise and lower the pinch roll 65.

  When the width of the workpiece W is wide, the workpiece W is arranged in a line in the conveying direction on the workpiece carry-in conveyor 111, and when the width of the workpiece W is narrow, a plurality of workpieces are also arranged in the width direction on the workpiece carry-in conveyor 111. Then, the workpiece W is conveyed from the workpiece carry-in conveyor 111 to the pinch roll device 10. The workpiece W is sent to the machining unit 6 while being held between the upper pinch roll 65 and the lower pinch roll 66, and the machining tool 35 contacts the workpiece W with the upper and lower surfaces of the workpiece W. The front and back of the workpiece W are machined by moving while moving.

  When the machining tool 35 is a brush, the machining tool 35 swings or rotates on the upper and lower surfaces of the workpiece W, and the workpiece W and the brush bristle 37 move while in contact with each other, thereby deburring the workpiece W. Or edge finishing is performed.

Further, when the machining tool 35 is affixed with a polishing cloth 39 for polishing the workpiece W, the machining tool 35 moves while contacting the workpiece W on the upper and lower surfaces of the workpiece W, so Polishing is performed.

  The tip of the work W is sandwiched between the upper pinch roll 65 and the lower pinch roll 66 on the carry-out side, and the work W is sent to the work carry-out conveyor 126. And the workpiece | work W conveyed by the workpiece | work carrying-out conveyor 126 is taken out by the operator.

  When the length of the work W is short, the work W carried in from the work carry-in conveyor 111 is divided into two upper pinch rolls 65 on the carry-in side and lower pinch rolls 66 on the two carry-in sides. Sent and sent. The tip of the workpiece W is machined by the machining tool 35. Next, the tip of the workpiece W is sandwiched between an unloading side upper pinch roll 65 adjacent to the machining unit 6 and an unloading side lower pinch roll 66. At this time, the workpiece W is sandwiched between the upper pinch roll 65 on the carry-in side adjacent to the machining unit 6 and the lower pinch roll 66 on the carry-in side.

  Next, the workpiece W is sent while being sandwiched between the upper pinch rolls 65 in the carry-out side two rows and the lower pinch rolls 66 in the carry-out side two rows. The rear end of the workpiece W is machined by the machining tool 35. In this way, even a short work W is configured to be sandwiched and fed between two places by the upper pinch roll 65 and the lower pinch roll 66.

  In the said embodiment, although the surface treatment of the elongate or flat workpiece was demonstrated, it is also possible to perform the surface treatment of the board | plate material cut | disconnected with the board | plate material processing machine. It is also possible to perform edge finishing of the cut end of the plate material cut by the laser processing machine.

  As mentioned above, although the deburring of the cut end of the long or flat workpiece of the present invention, the edge finishing of the cut end or the surface treatment apparatus for polishing the surface of the product has been described with reference to the preferred embodiments, the present invention has been described. However, the present invention is not limited to the above-described embodiments, and it goes without saying that various combinations and / or various modifications can be implemented within the scope of the present invention.

  For example, a plurality of machining units 6 may be arranged in the supply direction of the workpiece W, deburred by the upstream machining unit 6 in the conveyance direction of the workpiece W, and polished by the downstream machining unit 6. A surface treatment apparatus may be used. Further, different types of machining tools 35 may be attached to one machining unit 6.

DESCRIPTION OF SYMBOLS 6 Machining unit 7 Rotation drive device 8 Oscillating mechanism 9 Machining unit raising / lowering mechanism 10 Pinch roll device 21 Main body frame 35 Machining tool 41 Endless roller chain 80 Pinch roll raising / lowering mechanism 98 Lifting frame 111 Work carry-in conveyor 126 Work carry-out conveyor W work

The invention of claim 1, wherein for solving the aforementioned problem, deburring of the cut end of the elongated or plate-shaped workpiece, the finishing edge of the cut end of the work, also the polishing surface before Symbol workpiece The surface treatment apparatus includes a machining unit, and the machining unit includes a moving body that machines the workpiece , and a rotation driving device that rotationally drives the moving body. And the moving body is configured to be linearly movable in the machining region of the workpiece, and the moving body and the rotation driving device as a whole intersect with the moving direction of the moving body. It is configured to be swingable or reciprocally movable in an intersecting direction .

The invention according to claim 2 is a surface treatment apparatus for deburring a cut end of a long or flat workpiece, edge finishing of the cut end of the workpiece, or polishing the surface of the workpiece, The surface treatment apparatus includes a machining unit, and the machining unit includes a moving body that machines the workpiece, and a rotation drive device that rotationally drives the moving body, and a rack is provided in the machining unit. , the pinion attached to the movable body by the driving of the rotation drive device that moves while meshing with the rack, the movable body is characterized that you move linearly while rotating the machining area.

The invention according to claim 3 is characterized in that the moving body is a machining tool, the machining tool is attached to a chain, and the rotation driving device is configured to be able to rotationally drive the chain .

Invention according to claim 4, characterized Rukoto which have a guide for guiding the movement of the machining tool or the chain.

The invention according to claim 5 is characterized in that the chain has an attachment, and the machining tool is configured to be attached to the attachment in a replaceable or detachable manner .

According to a sixth aspect of the present invention, the machining unit is disposed above and below the workpiece passes, and each machining tool or each movable body deburrs and edges the upper and lower surfaces of the workpiece. It is characterized by being capable of finishing or polishing .

The invention according to claim 7 is characterized in that the machining tool for machining the upper surface of the workpiece and the machining tool for machining the lower surface of the workpiece are attached to the chain with a predetermined interval in the longitudinal direction of the chain, The machining tool for machining the upper surface of the workpiece in the machining area and the machining tool for machining the lower surface of the workpiece in the machining area face each other when viewed from the traveling direction of the machining tool. When the machining tool for machining the upper surface of the workpiece and the machining tool for machining the lower surface of the workpiece are in the machining region, the machining tools are arranged in a staggered arrangement. It is configured to move in the same direction while maintaining the state .

The invention described in claim 8 is characterized in that the machining unit or / and the pinch roll for feeding the workpiece are configured to be movable up and down.

According to the first and third aspects of the present invention, the moving body that surface-treats the workpiece swings or reciprocates while moving in the machining region. For this reason, since the moving body directly hits a corner perpendicular to the workpiece supply direction or a corner parallel to the workpiece supply direction, edge finishing or deburring of the corner orthogonal to the workpiece supply direction and the parallel corner is performed. it can be a to.

According to invention of Claim 2 and 3 , a mobile body moves, rotating the machining area | region. Therefore, when the moving body is a brush-like or strip-like polishing cloth, the brush hair or the polishing cloth directly hits a corner perpendicular to the workpiece supply direction or a corner parallel to the workpiece supply direction. Ru can be an edge finishing or deburring corners and parallel angular perpendicular to the workpiece feed direction.

According to invention of Claim 4, a machining tool or a chain moves along the guide to guide. Even when machining wide workpieces or chain elongation due to chain wear, the machining tool or chain can move linearly without drooping the machining area . Therefore, since the machining tool is in contact with always the same position (height) relative to the workpiece, deburring, edge finishing or polishing quality of you stable.

According to the invention of claim 5 , since the machining tool is attached to the attachment of the chain in a replaceable manner, even if the machining tool is damaged, it is only necessary to replace the damaged machining tool, which can contribute to cost reduction. .

According to invention of Claim 6, a machining unit is arrange | positioned in the upper direction and the downward direction through which a workpiece | work passes, and it is comprised so that a machining tool may process the upper surface and lower surface of a workpiece | work. Therefore, the front and back of the workpiece can be deburred, and edge finishing or polishing can be performed.

According to invention of Claim 7, the machining tool which processes the upper surface of a workpiece | work, and the machining tool which processes the lower surface of a workpiece | work are arrange | positioned facing each other. Therefore, since the interval between the pinch rolls arranged on both sides of the machining tool can be narrowed, it is possible to deburr, edge finish or polish a workpiece having a shorter length. In addition, when performing surface treatment on thin workpieces, the machining tool for machining the upper surface of the workpiece and the machining tool for machining the lower surface of the workpiece do not contact each other, so there is no wear due to contact between the machining tools. .

According to invention of Claim 8, the machining tool is comprised so that raising / lowering is possible. Therefore, since the machining tool can be moved up and down to a position corresponding to the thickness of the workpiece, deburring, edge finishing or polishing can be performed even if the thickness of the workpiece changes. Moreover, the pinch roll apparatus is comprised so that raising / lowering is possible. Therefore, it is possible to lift a position corresponding to the pinch rolls to the plate thickness of the work, even if the plate thickness of the workpiece changes can you route sandwiching the workpiece pinch rolls.

The invention according to claim 2 is a surface treatment apparatus for deburring the cut end of a long or flat workpiece, edge finishing of the cut end of the workpiece, or polishing the surface of the workpiece, The surface treatment apparatus includes a machining unit, and the machining unit circulates and moves the moving body between the machining area and the non-machining area of the workpiece. and a rotary driving device, the movable body, the with the machining region linearly movable in the said moving body, that is configured to be rotation by moving the machining area It is characterized by that.

Claims (10)

A surface treatment apparatus for deburring the cut end of a long or flat workpiece, edge finishing of the cut end of the workpiece, or polishing the surface of the workpiece,
The surface treatment apparatus includes a machining unit,
The machining unit is
A machining tool for machining the workpiece;
A chain on which the machining tool is replaceably mounted;
A surface treatment apparatus comprising: a rotation drive device that rotationally drives the chain.   The surface processing apparatus according to claim 1, wherein the machining tool is configured to be guided by a guide and linearly move in a machining area of the workpiece.   The surface treatment apparatus according to claim 1, wherein the machining tool is configured to be movable while rotating in a machining area of the workpiece. The surface treatment according to claim 1, wherein the machining tool is configured to be swingable in a direction substantially orthogonal to a moving direction of the machining tool or to be reciprocally movable. apparatus.   The surface treatment apparatus according to claim 1, wherein the machining tool is configured to be movable up and down.   The surface treatment apparatus according to claim 1, wherein the pinch roll for feeding the workpiece is provided so as to be movable up and down.   The machining unit is arranged above and below the workpiece, and each machining tool is configured to be able to deburr, edge finish or polish the upper and lower surfaces of the workpiece. The surface treatment apparatus according to claim 1, wherein the surface treatment apparatus is characterized in that: The machining tool for machining the upper surface of the workpiece and the machining tool for machining the lower surface of the workpiece are attached to the chain with a predetermined interval in the longitudinal direction of the chain,
The machining tool for machining the upper surface of the workpiece in the machining area and the machining tool for machining the lower surface of the workpiece in the machining area face each other when viewed from the traveling direction of the machining tool. And placed in
When the machining tool for machining the upper surface of the workpiece and the machining tool for machining the lower surface of the workpiece are in the machining region, the machining tools are kept in a staggered arrangement. The surface treatment apparatus according to claim 7, wherein the surface treatment apparatus is configured to move in the same direction.   9. The surface treatment apparatus according to claim 1, further comprising a dust collector for collecting burrs or dust and / or a transport device for transporting the workpiece. A surface treatment apparatus for deburring the cut end of a long or flat workpiece, edge finishing of the cut end of the workpiece, or polishing the surface of the workpiece,
A moving body that is endlessly connected and circulates to machine the workpiece is configured to be able to swing or reciprocate in a direction substantially perpendicular to the direction in which the moving body circulates. A surface treatment apparatus characterized by comprising: