JP3179993U - Deburring system - Google Patents

Abstract

A deburring system for efficiently removing burrs generated during press working of a metal workpiece is provided.
A first deburring system 2 includes a conveyance mechanism 10 that forms a workpiece conveyance path 4R of a metal workpiece 4, a burr contact belt mechanism 20 disposed above the workpiece conveyance path 4R, and a workpiece conveyance path 4R. And a rotating brush mechanism 30 disposed above. The rotating brush mechanism 30 is disposed downstream of the burr contact belt mechanism 20 in the conveying direction of the metal workpiece 4. The burr contact belt mechanism 20 is in contact with the burr of the metal workpiece 4. The rotating brush mechanism 30 is in contact with the warp burr. The warp burr is generated by the contact between the burr contact belt mechanism 20 and the burr.
[Selection] Figure 1

Description

  The present invention relates to a deburring system.

  A deburring device that removes burrs from a metal workpiece (hereinafter referred to as a metal workpiece) formed by a press machine is known. Examples of the metal workpiece include a brake pad holder, a clutch disk, a seat belt buckle, and the like, and those used for deburring such a metal workpiece include a deburring apparatus shown in FIG. There is a device 202 or the like. A deburring device 202 shown in FIG. 15 is arranged on the downstream side of the press machine 210 for molding the metal workpiece 204, and a direction inversion unit 211 that inverts the direction of the metal work 4 sent out from the press machine 210. And a polishing endless belt 212 for conveying the metal workpiece 4 whose direction is reversed in the lateral direction, a guide bar 213 disposed so as to cross the polishing belt 22, and a conveyance roller 215.

  There is a burr on the top of the metal workpiece 204 delivered from the press machine 210. Since the direction inversion part 211 inverts the direction of the metal workpiece 4, the burr of the metal workpiece 204 sent out from the direction inversion part 211 is positioned on the lower side. Thereafter, the metal workpiece 204 is conveyed toward the guide bar 213 by the polishing endless belt 212 in a posture where the burr is on the lower side. The metal workpiece 204 that has reached the guide bar 213 crosses the polishing belt 22 diagonally along the guide bar 213. When the metal workpiece 204 crosses the polishing endless belt 212 at an angle, the burr is brought into contact with the polishing endless belt 212. As a result, the burr is removed and the metal workpiece 4 from which the burr has been removed can be conveyed to a predetermined position.

  However, the deburring device 202 of FIG. 15 is provided with a direction reversing unit 211 between the press machine 210 and the polishing endless belt 212. This direction reversing unit 210 complicates the process required for deburring, resulting in extra time and cost for deburring.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a deburring system that can suppress the time and cost required for deburring as much as possible.

  The deburring system includes a transport tool that transports a metal work in a lateral direction along a work transport path, and is disposed above the work transport path, is movable relative to the transport tool, and moves the metal work. A burr contact belt that comes into contact with the burr, and a warp caused by contact with the burr contact belt, which is disposed above the workpiece conveyance path and downstream of the burr contact belt in the conveyance direction of the metal workpiece. A rotating brush that contacts the burr; and a brush rotating mechanism that rotates the rotating brush. The rotating brush includes a brush shaft that is rotatable about an axis extending in a vertical direction, and brush bristles that contact the burr. A moving direction of the burr contact belt when contacting the burr, and a warp burr generated by the contact with the burr contact belt. The moving direction of the bristles when are different from each other.

  The transport tool includes a transport belt mechanism provided with a work support surface that supports a lower surface of the metal work, and a locking protrusion that protrudes upward from the work support surface and locks a side portion of the metal work. It is preferable to have. Further, the transport belt mechanism has a workpiece projection receiving space provided on the workpiece support surface and capable of accommodating a workpiece projection protruding from the lower surface of the metal workpiece, and the locking projection and the workpiece projection receiving space are: It is preferable to line up in the conveyance direction of the metal workpiece.

  The transport tool includes a transport belt mechanism provided with a work support surface that supports a lower surface of the metal work, and a work protrusion housing that is provided on the work support surface and can accommodate a work protrusion protruding from the lower surface of the metal work. It is preferable to have a space.

  The transport belt mechanism includes a first belt member and a second belt member, and the first belt member includes a first workpiece support surface that supports a lower surface of the first metal workpiece, and a first workpiece support surface. A second protrusion supporting upward and an engaging protrusion for engaging a side portion of the first metal workpiece, the second belt member supporting a lower surface of the second metal workpiece; It is preferable to have a workpiece projection receiving space provided on the second workpiece support surface and capable of accommodating a workpiece projection protruding from the lower surface of the second metal workpiece. Further, it is preferable that the first belt member and the second belt member are integrated so that the first work support surface and the second work support surface face the same direction.

  The first belt member and the second belt member are preferably capable of transitioning exclusively between a transport path forming state that forms the work transport path and a retracted state that is retracted from the transport path forming state. . A conveying belt switching control unit configured to switch a state of the first belt member and the second belt member between the conveying path forming state and the retracted state, the conveying belt switching control unit including the first belt; It is preferable to switch the state of the first belt member and the second belt member so that one of the member and the second belt member is in the transport path forming state and the other is in the retracted state.

  The rotating brush preferably includes a magnet that allows the brush shaft and the brush head to be freely attached and detached.

  Furthermore, a brush rotation control unit that controls the brush rotation mechanism, and a downstream rotation brush disposed downstream of the rotation brush in the transport direction of the metal workpiece, the downstream rotation brush, A downstream brush shaft that is rotatable about a downstream shaft extending in the vertical direction, and a downstream brush head provided with brush bristles that contact the burr, and the brush rotation mechanism includes the downstream shaft. The downstream rotating brush is rotatable about the center, and the brush rotation control unit is configured to rotate the rotating brush in a direction opposite to the rotating direction of the downstream rotating brush and to reverse the rotation of the rotating brush. Preferably, the brush rotation mechanism is controlled so that the rotation of the downstream rotary brush is reversed at the same time.

  A weight sensor that detects the weight of the bristle, a rotating brush moving unit that moves the rotating brush so as to approach the workpiece conveyance path, and a rotating brush movement control unit that controls the rotating brush moving unit, The rotary brush movement control unit reads the detection signal from the weight sensor a plurality of times, and if the weight of the rotary brush detected before is smaller than the weight of the rotary brush detected later, the rotation brush moves. It is preferable to control the rotating brush moving unit so that the brush approaches the workpiece conveyance path.

  It is preferable to provide a rotating brush width direction moving part that allows the rotating brush to move in the width direction of the workpiece conveyance path.

  The burr contact belt includes a first roller, a second roller, a burr contact belt portion wound around the first roller and the second roller, and a roller axial direction changing unit that changes an axial direction of the first roller. And a roller axial direction change control unit that controls the roller axial direction change unit, wherein the roller axial direction change control unit is configured to provide the burr contact belt in an area where the burr contact belt unit contacts the burr. It is preferable to control the roller axial direction changing unit so that the movement trajectory of the part vibrates in the width direction of the workpiece conveyance path.

  According to the deburring system, the time and cost required for deburring can be minimized.

It is a side view which shows the outline | summary of a 1st deburring system. It is a side view which shows the outline | summary of a burr processing zone. It is a side view which shows the outline | summary of a belt oscillation unit. It is a perspective view which shows the outline | summary of a rotating brush mechanism. It is a top view which shows the outline | summary of the 1st-2nd curvature burr processing zone. It is a side view which shows the outline | summary when the 1st curvature burr | flash process zone is seen from the conveyance direction upstream. It is the elements on larger scale which show the outline of the bristle with the bedclothes. It is the elements on larger scale which show the outline of the bristle in which the front-end | tip was reduced. It is a perspective view which shows the outline | summary of a 2nd conveyance belt. It is a perspective view which shows the outline | summary of a 3rd conveyance belt. It is a perspective view which shows the outline | summary of a 4th conveyance belt. It is a perspective view which shows the outline | summary of the 5th conveyance belt. It is a perspective view which shows the outline | summary of the modification of a 5th conveyance belt. It is a perspective view which shows the outline | summary of the modification of a 5th conveyance belt. It is a side view which shows the outline | summary of a 2nd deburring system. It is a side view which shows the outline | summary of the 2nd deburring system using a 4th conveyance belt. It is a side view which shows the outline | summary when the 2nd deburring system is seen from the conveyance direction upstream. It is the elements on larger scale which show the outline | summary of the work guide board and brush hair when the burr | flash process of a metal workpiece | work is performed. It is the elements on larger scale which show the outline | summary of the work guide board and brush hair when the burr | flash process of a metal workpiece | work is performed. It is a top view which shows the outline | summary of the conventional deburring apparatus.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  As shown in FIG. 1, the first deburring system 2 includes a transport mechanism 10 that forms a work transport path 4R for a metal workpiece 4, a burr contact belt mechanism 20 disposed above the work transport path 4R, and a work transport. And a rotating brush mechanism 30 disposed above the path 4R. The rotating brush mechanism 30 is disposed downstream of the burr contact belt mechanism 20 in the conveying direction of the metal workpiece 4.

  The transport mechanism 10 includes rollers 11 and 12 and an endless transport belt 13 wound around the rollers 11 and 12. As a material for forming the conveyor belt 13, for example, synthetic resin is used. As the roller 11 rotates, the conveyor belt 13 circulates around the rollers 11 and 12. Further, the transport mechanism 10 has a transport roller 15. Thus, the workpiece conveyance path 4R is formed by the conveyance belt 13 and the conveyance roller 15 wound around the rollers 11 and 12.

  Thus, the metal workpiece 4 supplied from the press machine 6 reaches the conveyor belt 13 via the conveyor roller 15 with the burr facing upward. The metal workpiece 4 that has reached the conveyor belt 13 is conveyed in the moving direction of the conveyor belt 13 while its lower surface is supported by the conveyor belt 13.

  The burr contact belt mechanism 20 includes first and second guide rollers 21A to 21B disposed immediately above the workpiece conveyance path 4R, and a third guide roller that is further away from the workpiece conveyance path 4R than the first and second guide rollers 21A to 21B. 21C and an endless polishing belt 22 wound around first to third guide rollers 21A to 21C. The third roller 21C is a drive roller with a built-in motor. As the third roller 21C is driven to rotate, the polishing belt 22 circulates around the guide rollers 21A to 21C. The burr contact belt mechanism 20 includes backup rollers 23A to 23B disposed between the first and second guide rollers 21A to 21B.

  The polishing belt 22 moves at a predetermined relative speed with respect to the transport belt 13. For example, as shown in FIG. 1, the moving direction of the polishing belt 22 is opposite to the moving direction of the conveying belt 13. Thus, the burr processing zone 2ZA is formed between the first guide roller 21A and the second guide roller 21B in the work transport path 4R (see FIG. 2).

  Furthermore, the burr contact belt mechanism 20 has a belt oscillation unit 25 as shown in FIG. The belt oscillating unit 25 drives the shaft support 25M that supports one end of the rotation shaft 21CX of the third guide roller 21C, the shaft support 25F that supports the other end of the rotation shaft 21CX, and the shaft support 25M. Shaft drive unit 25D.

  The shaft support portion 25M is movable in the vertical direction, while the shaft support portion 25F is fixed. Therefore, when the shaft support portion 25M moves in the vertical direction by driving the shaft drive portion 25D, the rotary shaft 21CX of the third guide roller 21C is in a horizontal state (FIG. 3A) due to the vertical movement of the shaft support portion 25M. Transition) (see FIG. 3B and FIG. 3C). In this way, when the state of the shaft support portion 25M transitions between FIGS. 3B to 3C, the movement locus of the polishing belt 22 in the burr processing zone 2ZA (see FIG. 2) is the workpiece conveyance path 4R. Vibrates in the width direction (paper surface direction in FIG. 2).

  Examples of the polishing belt 22 include a natural stone polishing belt and a synthetic ceramic polishing belt, and a polishing belt in which natural stone or synthetic ceramic abrasive grains are provided on the surface of a synthetic resin substrate.

  Returning to FIG. 1, the rotating brush mechanism 30 includes a first rotating brush 31 and a second rotating brush 32 that are arranged in order from the upstream side toward the downstream side in the transport direction of the transport belt 13. In the work transport path 4R, the portion facing the first rotating brush 31 is the first warp burr processing zone 2ZB, and the portion facing the second rotating brush 32 is the second warping burr processing zone 2ZC.

  The first rotating brush 31 includes a rotating tool 31A that is rotatable about an axis AX extending in the vertical direction, a brush rotating shaft motor 31B that rotates the rotating tool 31A, and a brush head 31C that is attached to the rotating tool 31A. Have.

  As shown in FIG. 4, the rotating tool 31A includes a rotating shaft portion 31AX and a steel rotating plate 31AB provided at the tip of the rotating shaft portion 31AX. The rotating plate 31AB is fixed to the rotating shaft portion 31AX. When the rotary shaft 31AX rotates around the axis AX by the brush rotary shaft motor 31B (see FIG. 1), the rotary plate 31AB also rotates around the axis AX.

  The brush head 31C includes brush bristles 31CA, a bristles holding plate 31CB that holds the upper ends of the bristles 31CA on the bottom surface, and a magnet 31CM embedded in the bristles holding plate 31CB. The brush bristles 31CA are provided around the axis AX1 on the lower surface of the brush bristle holding plate 31CB. On the lower surface of the brush bristle holding plate 31CB, the diameter (hereinafter referred to as brush area diameter) φ1 (see FIG. 5B) of the area where the brush bristle 31CA is provided is the length of the metal work 4 in the width direction of the conveyance path 4R (hereinafter referred to as “brush area diameter”). , Simply referred to as width). The magnet 31CM is embedded so as to be flush with the upper surface of the brush bristle holding plate 31CB. The brush head 31C is attached to the rotating plate 31AB, that is, the rotating tool 31A by the magnetic force of the magnet 31CM. For this reason, the replacement work of the brush head 31C becomes smooth.

  As shown in FIGS. 1 and 5A, when the rotating tool 31A rotates around the axis AX1, the brush bristles 31CA rotate around the axis AX1 above the work conveyance path 4R. As the bristle 31CA, one having rigidity and elasticity is preferable, and examples of the forming material include metal, natural stone, synthetic ceramic, nylon, and the like. Further, in the case of nylon brush bristles 31CA, any of those containing abrasive grains (for example, made of natural stone or synthetic ceramic) or those containing no abrasive grains may be used.

By the way, when the metal work 4 passes through the first warp burr processing zone 2ZB in a state where the first rotary brush 31 is rotated in the direction D1, the metal work 4 has the bristles 31CA on the metal work 4 due to contact with the first rotary brush 31. after a force in the moving direction D1 _a (tangential direction on the bristle 31CA rotation locus 31K) is applied, a force in the moving direction D1 _B bristle 31CA consuming. For this reason, on the conveyance belt 13, there exists a possibility that the metal workpiece 4 may meander in the width direction of the conveyance path 4R. Therefore, in order to prevent such meandering of the metal work 4, the width φ 3 of the transport belt 13 is made smaller than the width φ 2 of the metal work 4, and the work guide guides both ends of the metal work 4 on both sides of the transport belt 13. It is preferable to provide the board 17 (refer FIG. 5A-5B). In this case, the work guide plate 17 also contributes to the formation of the work transport path 4R. Thus, meandering of the metal workpiece 4 in the first warp burr processing zone 2ZB can be prevented. The work guide plate 17 is preferably provided in the second warp burr processing zone 2ZC in the same manner as the first warp burr processing zone 2ZB.

  As shown in FIG. 1, the first rotating brush 31 includes a first weight sensor 31S that detects the weight of the first brush bristles 31CA, and a first tool that moves the rotating tool 31A in the vertical direction so as to approach the workpiece conveyance path 4R. And a rotating brush moving part 31T. The first weight sensor 31S is provided in the brush rotation shaft motor 31B and detects the weight of the bristles 31CA of the first rotation brush 31 continuously or intermittently. The first rotating brush moving unit 31T determines whether or not the weight of the bristle 31CA of the first rotating brush 31 has been reduced from the plurality of detection results read from the first weight sensor 31S. For example, when the weight of the brush hair 31CA detected before is lighter than the weight of the brush hair 31CA detected later, it is determined that the weight of the brush hair 31CA is light. Furthermore, when the first rotating brush moving unit 31T determines that the weight of the brush bristles 31CA has decreased, the first rotating brush moving unit 31T brings the rotating tool 31A closer to the workpiece conveyance path 4R by the height corresponding to the lightened amount.

  As shown in FIG. 5A, the first rotating brush 31 includes a first horizontal arm 31U extending in the width direction of the work transport path 4R and a first horizontal arm 31U that moves in the width direction of the work transport path 4R. 1 arm moving part 31W. One end side of the first horizontal arm 31U is connected to the rotating tool 31A. The first arm moving unit 31W allows the rotating tool 31A to move in the horizontal direction, that is, in the width direction of the work transfer path 4R.

  Since the second rotating brush 32 has the same structure as the first rotating brush 31, detailed description thereof is omitted. Of the reference numeral “32OO”, the reference numeral “32” represents a part of the second rotating brush 32, and the reference numeral “OO” represents a component part of the rotating brush. For example, the second arm moving unit 32W is a component of the second rotating brush 32, and the structure thereof is the same as that of the first arm moving unit 31W.

  The rotating brush mechanism 30 includes a width direction moving mechanism 36 that controls the movement in the width direction of the first and second rotating brushes 31 to 32. The width direction moving mechanism 36 performs movement control in the width direction of the work transport path 4R independently for the first arm moving unit 31W and the second arm moving unit 32W. The movement width of the first rotating tool 31A and the second rotating tool 32A by the width direction moving mechanism 36 is preferably in a range in which the brush bristles 31CA and 32CA reach both ends in the width direction of the work transport path 4R. Further, it is preferable that the movement of the first rotating tool 31A in the width direction of the work transport path 4R and the movement of the second rotating tool 32A in the width direction of the work transport path 4R are synchronized. For example, the line connecting the first rotating tool 31A and the second rotating tool 32A is parallel to the transport direction, that is, the first rotating tool 31A and the second rotating tool 32A may be moved in the same phase. . Further, the first rotating tool 31A and the second rotating tool 32A may be moved in opposite phases.

  As shown in FIG. 1, the rotating brush mechanism 30 includes a brush rotation control unit 37 that controls the rotation of the first to second rotating brushes 31 to 32. The brush rotation control unit 37 independently controls the first brush rotation shaft motor 31B and the second brush rotation shaft motor 32B. Further, the brush rotation control unit 37 includes the first and second brush rotation shaft motors 31B, so that the rotation direction D1 of the first rotation tool 31A and the rotation direction D2 of the second rotation tool 32A are opposite to each other. 32B is controlled. In addition, when the rotation of the first rotating brush 31 is reversed, the brush rotation control unit 37 reverses the rotation of the second rotating brush 32 in synchronization with the reversal. The reversal timing of the first and second rotating brushes 31 to 32 by the brush rotation control unit 34 is before the first and second brush bristles 31 to 32CA start to sleep, or at the tip of the first and second brush bristles 31 to 32CA. It is preferable to set it before reduction. Here, the bed of the first and second brush hairs 31 to 32CA refers to a case where the tips of the first and second brush hairs 31 to 32CA in contact with the metal workpiece are bent, such as plastic deformation of the brush hair. (See FIG. 5C). Moreover, the one-side reduction | decrease of the front-end | tip of the 1st-2nd brush hair 31-32CA means the case where the front-end | tip of a bristle is biased and worn by contact with a metal workpiece (refer FIG. 5D). In FIG. 5D, the part of the chain double-dashed line in the bristle represents the worn part.

  Next, a method for using the deburring system 2 will be described.

  The metal workpiece 4 supplied from the press machine 6 reaches the conveyance belt 13 via the conveyance roller 15 with the burr facing upward. The metal workpiece 4 that has reached the conveyor belt 13 is conveyed in the moving direction of the conveyor belt 13 while its lower surface is supported by the conveyor belt 13.

  As shown in FIG. 2, the polishing belt 22 is pressed against the burr 5 </ b> X of the metal workpiece 4 in the burr processing zone 2 </ b> ZA. As a result, the burr 5X of the metal workpiece 4 is bent from the base side, and as a result, the tip of the burr 5X faces the moving direction side of the polishing belt 22. Hereinafter, the burr whose tip is directed toward the moving direction of the polishing belt 22 is hereinafter referred to as a warp burr 5Y.

  Further, as shown in FIG. 3, when the state of the shaft support portion 25 </ b> M transitions between FIGS. 3B to 3C by the belt oscillation unit 25, the movement locus of the transport belt 13 in the burr processing zone 2ZA is Then, it vibrates in the width direction (paper surface direction in FIG. 1) of the workpiece conveyance path 4R. As a result, the pressing unevenness of the polishing belt 22 in the width direction of the work conveyance path 4R can be suppressed, and the burr 5X of the metal work 4 can be bent from the root without unevenness.

  As shown in FIG. 5A, the metal workpiece 4 having the warp burr 5Y passes through the first warp burr processing zone 2ZB and the second warp burr processing zone 2ZC in order by the transport belt 13.

In the first warp burr processing zone 2ZB, since the first rotating brush 31 rotates in the direction D1, the warp burr 5Y is counter to the moving direction D1 _{A of the} brush bristles 31CA (tangential direction on the brush bristles 31CA rotation locus 31K). after being and Hansa the moving direction D1 _B bristle 31Ca. Thereafter, in the second warp burr processing zone 2ZC, the second rotating brush 32 rotates in the direction D2 opposite to the direction D1, so that the warp burr 5Y moves in the movement direction D2 _A (brush bristles 32CA rotation locus of the brush bristles 32CA). after being Hansa tangentially) in 32K, are Hansa the moving direction D2 _B of bristles 32Ca.

  Thus, since the warp direction of the warp burr 5Y is different in the first warp burr processing zone 2ZB and the second warp burr processing zone 2ZC, the warp burr 5Y is broken from the root, that is, the root of the original burr 5X. , The burr is removed from the metal workpiece 4.

In addition, it is preferable that the moving directions D1 _A , D1 _B , D2 _A , D2 _B of the brush bristles 31CA are different from the moving direction of the polishing belt 22 from the viewpoint of the burr removal effect.

  Further, since the first rotating brush 31 and the second rotating brush 32 move independently in the width direction of the work transport path 4R, the warp burrs of the metal work 4 are not affected regardless of the position in the width direction of the work transport path 4R. 5Y can be removed more reliably.

  In this way, in the first deburring system 2, the metal workpiece with the burr 5X still facing up can be conveyed as it is, and deburring can be performed on the metal workpiece being conveyed. There is no need to reverse the direction. Therefore, according to the first deburring system 2, the time and cost required for deburring can be suppressed as much as possible. Furthermore, according to the 1st deburring system 2, another trouble (for example, trouble of the direction inversion part 211 itself of FIG. 15) resulting from inversion of the direction of a metal workpiece can be prevented beforehand.

  In addition, in the first deburring system 2, since the metal workpiece 4 is supported from below and the metal workpiece 4 is deburred from above, stronger contact with the deburring is possible compared to the deburring device 202 shown in FIG. As a result, deburring can be performed reliably.

  Incidentally, in the first deburring system 2, when the deburring belt mechanism 20 is omitted, that is, when deburring is performed using only the rotating brush mechanism 30, it is difficult to remove the deburring 5X from the root. This is presumed that the bristles of the rotating brush are insufficient to bend the burr 5X from the root. Further, in the first deburring system 2, when the rotating brush mechanism 30 is omitted, that is, when deburring is performed using only the burr contact belt mechanism 20, the warp burr 5Y remains, After all, it is insufficient for removing the burr 5X. On the other hand, in the first deburring system 2, since the burr contact belt mechanism 20 that bends the burr 5X from the base to make the warp burr 5Y and the rotary brush mechanism 30 that removes the warp burr 5Y from the root are used in combination, Time and cost required for deburring can be minimized.

  Further, when the deburring device is disposed below the workpiece conveyance path (for example, a deburring system in FIG. 10 described later), the deburring device is disposed below the workpiece conveyance path as a conveyance mechanism for conveying the metal workpiece. In addition, a conveyance roller disposed on the upstream side and the downstream side, and a conveyance device (such as a conveyance belt) facing the deburring device via the workpiece conveyance path are necessary. For this reason, not only does the structure of the transport mechanism become complicated, but the metal workpiece 4 may fall off between the transport rollers or between the transport rollers and the deburring process. In the first deburring system 2, the transport mechanism 10 that supports the metal workpiece 4 uses the endless transport belt 13 positioned below the work transport path 4R, so that the structure of the transport mechanism 10 is simplified and the metal It is possible to reliably prevent the workpiece 4 from falling off.

  Here, if the first and second rotating brushes 31 to 32 continue to rotate in the same direction, the bristle 31CA to 32CA will fall asleep. Even if the brush hairs 31CA to 32CA with the bedclothes are used, the warp burr removal effect cannot be sufficiently obtained. Therefore, the brush rotation control unit 37 simultaneously reverses the rotations of the first and second rotating brushes 31 to 32 before the bristle of the brush hairs 31CA to 32CA starts to be attached. Thereby, since the sleeping of the bristle 31CA-32CA by continuous use can be prevented, the removal effect of a curvature burr | flash can be maintained.

  Further, when the first and second rotating brushes 31 to 32 are continuously used, the tips of the brush hairs 31CA to 32CA are worn. When the worn brush bristles 31CA to 32CA are used as they are, the effect of removing warp burrs cannot be sufficiently obtained. Therefore, the first and second rotating brush moving units 31T and 32T are spaced from the leading ends of the first and second brush hairs 31CA to 32CA to the conveying belt 13 based on the sensing signals from the first and second weight sensors 31S to 32S. The first and second rotating brushes 31 to 32 are moved so that is within a certain range.

  Furthermore, when the amount of wear of the first brush bristles 31CA reaches a certain level, it is necessary to replace the first brush head 31C. In the first rotating brush 31, the rotating plate 31AB and the brush bristle holding plate 31CB are detachable by magnetic force by the magnet 31CM (see FIG. 4), so that the replacement work of the brush head 31C becomes smooth. The magnet 31CM may be embedded so as to be flush with the lower surface of the rotating plate 31AB instead of the brush bristle holding plate 31CB. In this case, the bristle holding plate 31CB is preferably made of steel. The magnet 31CM may be an electromagnet. As a result, the presence / absence of magnetic force can be switched, so that the replacement work of the brush head 31C becomes smoother.

  In the above embodiment, the conveyor belt 13 having flat surfaces is used, but the present invention is not limited to this. Instead of the transport belt 13, a transport belt 60 with a locking tool having a locking tool for the metal workpiece 4 (see FIG. 6) may be used.

  The transport belt 60 with a locking tool includes a transport belt portion 61 having a work support surface 61A for supporting the metal workpiece 4, and a locking protrusion 62 protruding from the work support surface 61A. The locking protrusions 62 are arranged apart from each other by a predetermined interval (for example, longer than the length of the metal workpiece 4) in the longitudinal direction of the transport belt portion 61. Further, the locking protrusion 62 extends in the width direction of the conveyance belt portion 61. Note that it is preferable that both ends of the locking projection 62 coincide with both ends in the width direction of the transport belt portion 61.

  According to the transport belt 60 with the locking tool, the locking protrusion 62 locks the side surface of the metal workpiece 4 from the upstream side in the transport direction of the metal workpiece 4, and as a result, the metal workpiece 4 is transported at high speed and reliably. Can do. In addition, as a mode in which the locking projection 62 is locked to the side portion of the metal workpiece 4, in addition to a mode in which the locking projection 62 is locked to the side portion of the metal workpiece 4 in a surface contact state, the locking projection 62 is The aspect which latches to the side part of the metal workpiece 4 in the state of a point contact may be sufficient.

  Conventionally, magnets are embedded in the conveyor belt in order to convey the metal workpiece 4 at high speed and reliably. In this case, however, a separate demagnetization process is required after deburring. On the other hand, according to the transport belt 60 with a locking tool, the metal workpiece 4 can be transported at high speed and reliably without the need for a separate demagnetization process.

  Further, the locking protrusion 62 is preferably formed integrally with the conveying belt portion 61. In FIG. 6, the linear locking projections 62 are provided on the work support surface 61 </ b> A of the transport belt portion 61. However, the present invention is not limited to this, and a plurality of locking projections 62 are connected to the transport belt portion 61. You may arrange in the width direction.

In addition, when the surface of the metal workpiece 4 supported by the workpiece support surface 61A (hereinafter referred to as a supported surface) is flat, the above-described conveyance belt 13 or the conveyance belt 13 with a locking tool may be used. When the supported surface is not flat, for example, when a workpiece projection such as a dowel is formed on the supported surface, the workpiece projection makes point contact with the workpiece support surface 61A of the conveyance belt portion 61. It is easy for deterioration to progress. In particular, the metal workpiece 4 in which the workpiece protrusion is in point contact with the workpiece support surface 61A is introduced as it is into the burr processing zone 2ZA, the first warp burr processing zone 2ZB, and the second warp burr processing zone 2ZC (see FIG. 1). For example, the following problems (1) to (3) occur.
(1) Deterioration of the conveyor belt portion 61 further proceeds due to stress concentration caused by point contact.
(2) As a result of the frictional force being reduced due to point contact, the conveyor belt unit 61 cannot stably support the metal workpiece 4.
(3) Since the polishing belt 22 and the first and second rotating brushes 31 to 32 do not contact the metal workpiece 4 uniformly, unevenness is generated in deburring.

  In this case, instead of the transport belt 60 with the locking tool, a transport belt 70 with an accommodation space (see FIG. 7) that can accommodate the workpiece protrusion of the metal workpiece 4 may be used.

  The conveyor belt 70 with a storage space includes a conveyor belt portion 71 having a work support surface 71A for supporting a metal workpiece, and a workpiece projection receiving space 71B that is recessed from the workpiece support surface 71A and can accommodate a workpiece projection of the metal workpiece 4. . The work protrusion accommodating spaces 71 </ b> B are arranged at predetermined intervals in the length direction of the conveyor belt portion 71. The work protrusion accommodating space 71 </ b> B extends in the width direction of the transport belt portion 71. In addition, it is preferable that both ends of the work protrusion accommodating space 71 </ b> B coincide with both ends in the width direction of the conveyance belt portion 71.

  Note that the opening size (vertical and horizontal lengths) of the work protrusion accommodating space 71B may be of a size that can accommodate the work protrusion. The opening depth of the work protrusion accommodating space 71 </ b> B may be smaller than the thickness of the conveyance belt portion 71, that is, either the type that does not penetrate the conveyance belt portion 71 or the type that penetrates the conveyance belt portion 71.

As a result of surface contact between the supported surface of the metal workpiece having the workpiece projection and the workpiece supporting surface 71A of the conveyor belt portion 71, the following merits (1) to (3) are obtained.
(1) The damage of the conveyance belt 70 with the accommodation space can be suppressed.
(2) The support of the metal workpiece by the conveyance belt 70 with the accommodation space is stabilized.
(3) Since the polishing belt 22 and the first and second rotating brushes 31 to 32 are in uniform contact with the metal workpiece 4, unevenness in deburring can be suppressed.

  Further, in order to carry the metal workpiece 4 at high speed and reliably, a locking projection 72 protruding from the workpiece support surface 71A may be provided on the conveyance belt portion 71 together with the workpiece projection receiving space 71B (see FIG. 8). ). Here, the number of the work protrusion accommodating spaces 71B provided between the adjacent locking protrusions 72 may be one or two or more. In order to correspond to metal workpieces 4 of any shape, it is preferable that the number of workpiece projection receiving spaces 71B be provided between adjacent locking projections 72 is two or more.

  8 includes a metal workpiece having a flat supported surface (hereinafter referred to as a flat metal workpiece) and a metal workpiece having a protrusion on the supported surface (hereinafter referred to as a metal workpiece with projection). Both) can be transported.

  As shown in FIG. 9A, the conveyance belt 60 with a locking tool shown in FIG. 6 and the conveyance belt 70 with a storage space shown in FIG. 8 are arranged so that the workpiece support surface 61A and the workpiece support surface 71A face the same direction. An integrated integral conveyor belt 80 may be used.

  The integrated conveyance belt 80 includes a conveyance belt portion 86 with a locking tool including a conveyance belt 60 with a locking device, and a conveyance belt portion 87 with a storage space including a conveyance belt 70 with a storage space.

  In addition, when providing the latching protrusion 62 in the conveyance belt part 60 with a latching tool, and providing the latching protrusion 72 in the conveyance belt part 70 with accommodation space, the latching protrusion in the length direction of the integrated conveyance belt 13. 62 and 72 are preferably formed in synchronization.

  When such an integrated conveyance belt 80 is used, a conveyance belt switching device may be further provided. The conveyor belt switching device moves the integrated conveyor belt 80 in the width direction of the integrated conveyor belt 80. More specifically, only the conveyor belt section 60 with a locking tool serves as the workpiece conveyor path 4R. The integrated transport belt 13 can be switched between the first state and the second state in which only the transport belt portion 70 with a storage space becomes the work transport path 4R. Here, in the first state, only the conveying belt portion 60 with the locking tool is directly opposed to the polishing belt 22 and the first and second rotating brushes 31 to 32, and in the second state, only the conveying belt portion 70 with storage space is polished. It faces the belt 22 and the first and second rotating brushes 31 to 32.

  Furthermore, it is preferable that the conveyor belt switching device can detect the type of the metal workpiece 4 delivered from the press machine 6. According to such a conveyor belt switching device, it is possible to switch to a state suitable for the type of the metal workpiece 4 delivered from the press machine 6.

  Further, when using the integrated conveyance belt 80 shown in FIG. 9A, in order to reliably suppress the meandering of the metal workpiece, the work guide plates 17 may be disposed on both sides of the integrated conveyance belt 80 (see FIG. 9B). Furthermore, a work guide protrusion 88 may be provided on a boundary portion between the conveyor belt portion 86 with a locking tool and the conveyor belt portion 87 with a receiving space in the supported surface of the integrated conveyor belt 80.

  In addition, although illustration is abbreviate | omitted, you may use the integrated conveyance belt which integrated the conveyance belt 60 with a locking tool shown in FIG. 6, and the conveyance belt 70 with a storage space shown in FIG.

  In the above embodiment, the integrated conveyor belt 13 is switched using the conveyor belt switching device, but the present invention is not limited to this. For example, when the conveyance belt 60 with a locking tool shown in FIG. 6 and the conveyance belt 70 with an accommodation space shown in FIG. 8 are used, the state where only the conveyance belt 60 with a locking tool becomes the workpiece conveyance path 4R, What is necessary is just to use the conveyance belt switching apparatus which switches between the states in which only the conveyance belt 70 with space becomes the workpiece conveyance path 4R. Similarly, when the conveyance belt 60 with a locking tool shown in FIG. 6 and the conveyance belt 70 with accommodation space shown in FIG. 7 are used, a conveyance belt switching device similar to this may be used.

  As shown in FIG. 9C, when two independent conveyor belts (for example, the conveyor belt 60 with a locking tool shown in FIG. 6 and the conveyor belt 70 with an accommodation space shown in FIG. 7) are used, the respective conveyor belts are used. Work guide plates 17 may be provided on both sides of the belt. A single work guide plate 17 may be shared between the two conveyor belts. And when switching between the state in which the conveyance belt 60 with a locking tool becomes the workpiece conveyance path 4R and the state in which the conveyance belt 70 with the accommodation space becomes the workpiece conveyance path 4R, using a conveyance belt switching device, It is only necessary to move not only the two conveyor belts but also the work guide plates 17 arranged on both sides of the two conveyor belts.

  Each of the conveying belts shown in FIGS. 6 to 9 is not only a belt whose deburring device is positioned above the workpiece conveying path 4R (for example, the first deburring system 2 shown in FIG. 1), but also the deburring device is conveying the workpiece. The present invention is also applicable to a second deburring system located below the path 4R.

  In the second deburring system 102 shown in FIG. 10, a rotating brush 131 that deburrs the metal workpiece 4 being conveyed through the workpiece conveyance path 104 </ b> R, and upstream and downstream of the rotating brush 131 in the metal workpiece conveying direction. A conveying roller 115 disposed on the conveyor belt 113, a conveying belt 113 passing through a position facing the rotating brush 131 and the conveying roller 115 via the workpiece conveying path 104R, and a belt driving mechanism 135 that enables the conveying belt 113 to circulate. Have.

  The conveyor belt 113 may be any of the aforementioned conveyor belts. The belt drive mechanism 135 includes first to third guide rollers 21A to 21C and backup rollers 23A to 23B shown in FIG. The rotary brush mechanism 131 is arranged such that the brush bristles 131CA face upward, that is, toward the workpiece conveyance path 104R. Since the structure of the rotary brush mechanism 131 is the same as that of the first rotary brush 31 described above, detailed description thereof is omitted.

  FIG. 11 shows an example in which the conveyor belt with housing space 70 shown in FIG. 8 is used as the conveyor belt 113 in the second deburring system 102 shown in FIG. Since the protrusion of the metal work 4 is accommodated in the work protrusion receiving space 71B by using the transfer belt with storage space 70, the upper surface of the metal work with protrusion is in surface contact with the work support surface 71A of the transfer belt 70 with storage space. To do. As a result, it is possible to simultaneously suppress the damage to the conveyance belt 70 with the accommodation space, stabilize the support of the metal workpiece, and prevent the unevenness of the deburring. Furthermore, the side surface on the upstream side in the conveyance direction of the metal workpiece with protrusions is engaged with the engagement protrusions 72. For this reason, it becomes possible to stabilize the conveyance of both the flat metal workpiece and the metal workpiece with projections.

  In FIG. 11, an example is shown in which the transport belt 13 with the accommodation space shown in FIG. 8 is used as the transport belt 13, but the present invention is not limited to this, and any of the transport belts described above is used as the transport belt 13. May be used.

  In the above embodiment, the deburring system has been described. However, the conveying tool (conveying belt) used in the deburring system can also convey the metal workpiece 4 at high speed and reliably without the need for a separate demagnetization process. There is an advantage that you can. Moreover, in the said embodiment, although the attitude | position of the metal workpiece in conveyance was demonstrated as what a burr | flash is located in the upper part, as a conveyance tool single-piece | unit, the attitude | position of the metal workpiece in conveyance is located in the lower part. It may be a thing.

  Hereinafter, the configuration of the carrier will be described.

  In the work conveyance path provided with a deburring zone, it is a conveying tool for conveying a warehouse work having burrs, and has a work support surface for supporting the metal work on the side opposite to the burrs, It has a conveyance belt which conveys the metal work supported by the work support surface, and a lock projection which protrudes from the work support surface and locks the side of the metal work.

  In the work conveyance path provided with a deburring zone, it is a conveying tool for conveying a warehouse work having burrs, and has a work support surface for supporting the metal work on the side opposite to the burrs, It has a conveyance belt which conveys the metal work supported by the work support surface, and a work protrusion accommodation space provided on the work support surface and capable of accommodating a work protrusion protruding from the metal work. .

  A workpiece projection receiving space provided on the workpiece support surface and capable of accommodating a workpiece projection protruding from the metal workpiece, wherein the locking projection and the workpiece projection receiving space are arranged in a conveying direction of the metal workpiece. preferable.

  The transport belt mechanism includes first and second belt members, and the first belt member supports a first work support surface that supports a lower surface of the first metal work, and upwards from the first work support surface. And a protrusion for locking the side portion of the first metal workpiece, and the second belt member includes a second workpiece support surface for supporting a lower surface of the second metal workpiece, It is preferable to have a workpiece projection receiving space provided on the second workpiece support surface and capable of accommodating a workpiece projection protruding from the lower surface of the second metal workpiece.

  It is preferable that the first belt member and the second belt member are integrated so that the first work support surface and the second work support surface face the same direction.

  The first and second belt members are preferably capable of transitioning exclusively between a transport path forming state that forms the work transport path and a retracted state that is retracted from the transport path forming state. In addition, a conveyance belt switching control unit that switches a state of the first and second belt members between the conveyance path forming state and the retracted state, and the conveyance belt switching control unit includes the first and second belt members. It is preferable to switch the states of the first and second conveyor belts so that one of them is in the conveyance path forming state and the other is in the retracted state.

  By the way, also in the 2nd deburring system 102 shown in FIG. 10, there exists a possibility that the metal workpiece 4 may meander by contact with the rotating bristle. In order to prevent such meandering of the metal workpiece 4, the brush area diameter φ 1 is made larger than the width φ 2 of the metal workpiece 4 and the work guide plate 117 that guides both ends of the metal workpiece 4 in the width direction of the transport path 4 is rotated. It may be provided immediately above the brush mechanism 131 (see FIG. 12).

  Here, when the metal workpiece 4 is conveyed along the work guide plate 117 due to contact with the rotating brush hair, the metal workpiece 4 has a burr 5 between the workpiece guide plate 117 and the brush hair 131B. As a result, the metal workpiece 4 may not be transported (see FIG. 13). In such a case, it is conceivable to increase the distance between the work guide plate 117 and the bristles 131B. However, if the distance between the work guide plate 117 and the bristles 131B is increased, the angle between the lower surface and the side surface is increased. When the metal workpiece 4 having an acute angle is conveyed, the acute angle portion enters between the work guide plate 117 and the brush bristles 131B (see FIG. 14). In consideration of such points, it is better to arrange the deburring device above the work conveyance path than to arrange the deburring device below the work conveyance path.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the scope of the present invention.

2 Deburring system 4 Metal workpiece 4R Work conveyance path 5X Burr 5Y Warp burr 6 Press machine 10 Conveying mechanism 13 Conveying belt 15 Conveying roller 20 Burr contact belt mechanism 21A-21C Guide roller 21B Guide roller 22 Polishing belt 25 Belt oscillation unit 30 Rotation Brush mechanism 31A Rotating tool 31AB Rotating plate 31AX Rotating shaft portion 31B Brush rotating shaft motor 31C Brush head 31CA Brush hair 31CB Brush hair holding plate 31CM Magnet 31S Weight sensor 31T Rotating brush moving portion 31U Horizontal arm 31W Arm moving portion 32 Rotating brush 34 Brush Rotation control part 36 Width direction moving mechanism 37 Brush rotation control part 60 Conveying belt 61 with a locking tool Conveying belt part 61A Work support surface 62 Locking protrusion 70 Conveying belt 71 with accommodation space Conveying belt part 71A Workpiece Lifting surface 71B workpiece projection receiving space 72 locking projection

Claims (13)

A transport tool for transporting a metal work in a lateral direction on a work transport path;
A burr contact belt that is disposed above the workpiece conveyance path, is movable relative to the conveyance tool and contacts the burr of the metal workpiece;
A rotating brush that is disposed on the downstream side of the burr contact belt in the conveyance direction of the metal workpiece above the workpiece conveyance path and contacts a warp burr generated by contact with the burr contact belt;
A brush rotating mechanism for rotating the rotating brush,
The rotating brush is
A brush shaft rotatable around an axis extending in the vertical direction;
A brush head provided with brush bristles in contact with the burr;
The deburring system is characterized in that the direction of movement of the burr contact belt when contacting the burr differs from the direction of movement of the brush bristles when contacting the warped burr generated by contact with the burr contact belt. . The carrier is
A conveyor belt mechanism provided with a workpiece support surface for supporting the lower surface of the metal workpiece;
The deburring system according to claim 1, further comprising a locking protrusion that protrudes upward from the work support surface and locks a side portion of the metal work. The transport belt mechanism is provided on the work support surface, and has a work protrusion housing space capable of housing a work protrusion protruding from the lower surface of the metal work,
The deburring system according to claim 2, wherein the locking protrusion and the work protrusion receiving space are arranged in a conveyance direction of the metal work. The carrier is
A conveyor belt mechanism provided with a workpiece support surface for supporting the lower surface of the metal workpiece;
The deburring system according to claim 1, further comprising: a work protrusion receiving space provided on the work support surface and capable of storing a work protrusion protruding from a lower surface of the metal work. The transport belt mechanism has a first belt member and a second belt member,
The first belt member is
A first workpiece support surface for supporting a lower surface of the first metal workpiece;
A locking projection that protrudes upward from the first workpiece support surface and that locks a side portion of the first metal workpiece,
The second belt member is
A second workpiece support surface for supporting a lower surface of the second metal workpiece;
The deburring system according to claim 1, further comprising a work protrusion receiving space provided on the second work support surface and capable of storing a work protrusion protruding from a lower surface of the second metal work.   The first belt member and the second belt member are integrated such that the first work support surface and the second work support surface are oriented in the same direction. 5. The deburring system according to 5.   The first belt member and the second belt member are capable of transitioning exclusively between a conveyance path forming state that forms the workpiece conveyance path and a retracted state that is retracted from the conveyance path formation state. The deburring system according to claim 5 or 6. A transport belt switching control unit that switches the state of the first belt member and the second belt member between the transport path formation state and the retracted state;
The conveyance belt switching control unit includes the first belt member and the second belt member so that one of the first belt member and the second belt member is in the conveyance path forming state and the other is in a retracted state. The deburring system according to claim 7, wherein the state is switched.   The deburring system according to any one of claims 1 to 8, wherein the rotating brush includes a magnet that allows the brush shaft and the brush head to be detachably attached. A brush rotation control unit for controlling the brush rotation mechanism;
A downstream rotating brush disposed downstream of the rotating brush in the conveying direction of the metal workpiece,
The downstream rotating brush is
A downstream brush shaft rotatable around a downstream shaft extending in the vertical direction;
A downstream brush head provided with brush bristles in contact with the burr;
The brush rotating mechanism is capable of rotating the downstream rotating brush around the downstream axis;
The brush rotation control unit is configured such that the rotation direction of the rotation brush is opposite to the rotation direction of the downstream rotation brush, and the rotation reversal of the rotation brush and the rotation rotation of the downstream rotation brush are simultaneously performed. The deburring system according to claim 1, wherein the brush rotating mechanism is controlled so as to be performed. A weight sensor for detecting the weight of the bristles;
A rotating brush moving unit that moves the rotating brush so as to approach the workpiece conveyance path;
A rotating brush movement control unit for controlling the rotating brush moving unit,
The rotary brush movement control unit reads the detection signal from the weight sensor a plurality of times, and if the weight of the rotary brush detected before is smaller than the weight of the rotary brush detected later, the rotation brush moves. The deburring system according to any one of claims 1 to 10, wherein the rotating brush moving unit is controlled so that a brush approaches the workpiece conveyance path.   The deburring system according to any one of claims 1 to 11, further comprising a rotating brush width direction moving portion that allows the rotating brush to move in the width direction of the workpiece conveyance path. The burr contact belt is
A first roller;
A second roller;
A burr contact belt portion wound around the first roller and the second roller;
A roller axial direction changing portion for changing the axial direction of the first roller;
A roller axial direction change control unit for controlling the roller axial direction change unit,
The roller axial direction change control unit is configured to change the roller axial direction change unit so that the movement locus of the burr contact belt unit vibrates in the width direction of the work conveyance path in an area where the burr contact belt unit contacts the burr. The deburring system according to claim 1, wherein the deburring system is controlled.

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