JP5586406B2 - Rubber member compression cutting device and compression cutting method - Google Patents

Description

  The present invention relates to a compression-cutting device and a compression-cutting method for rubber members used for manufacturing tires and the like.

  Conventionally, various rubber members used for manufacturing tires and the like, such as inner liners, are formed by a non-vulcanized rubber composition extruded from an extrusion device and formed into a long sheet by a roller die. Was cut into a predetermined length. As a cutting method for cutting such a rubber member into a predetermined length, a cutting method using a compression cutting device equipped with a crash cutter is known (see FIG. 4 of Patent Document 1).

  FIG. 25 is a side view of a compression cutting device 60 according to this conventional rubber member compression cutting method.

  In this cutting method using the compression cutting device 60, the unvulcanized long sheet-like rubber member 61 is placed on the anvil 62, the crash cutter 63 disposed above the anvil 62 is moved downward, and the crash The lower end of the cutter 63 is pressed toward the anvil 62, the rubber member 61 is compressed with the compressive force generated between the anvil 62 and the crash cutter 63, and then the long sheet-like rubber member 61 adhered to the anvil 62 is cut. It was cut by pulling it to the left and right around the surface.

  Since the rubber member 61 cut as described above is pressed against the anvil 62 by the compressive force of the crash cutter 63 and strongly adheres to the anvil 62, the rubber member 61 is pulled in the left-right direction. At the time of peeling, a part of the strongly adhered cutting surface is stretched to cause a deformation of the shape of the cutting surface of the rubber member 61. Further, the rubber member 61 extends over the entire length, and each cut member The shape and length were different, and the shape and length accuracy of the rubber member 61 were inferior.

  When a tire is manufactured using such rubber members having different shapes and lengths, it is difficult to form the joint portion into a constant shape by superimposing the rubber members having deformations in the cut surfaces. Since products are manufactured by overlaying rubber members that do not have a predetermined length, there is a variation in the amount of rubber members overlapped at each joint, resulting in reduced product accuracy and reduced tire uniformity. there were.

JP 2003-251709 A

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to prevent the deformation of the cut surface of the rubber member and the elongation of the rubber member, and to provide a rubber member having high accuracy in terms of shape and length. And providing a method and apparatus for compressing and cutting a rubber member capable of producing a product with high accuracy and uniformity by making the overlapping of joint portions of a product manufactured using the rubber member constant. .

In order to solve the above-mentioned object, the invention according to claim 1 is a method of compressing and cutting a rubber member with an anvil and a cutter, wherein the rubber member is disposed between the anvil and the cutter, and the rubber member is connected to the anvil. Compressing with the cutter, inserting a peeling member of a peeling means between the anvil and the rubber member, peeling off the rubber member, the peeling means comprising a strip-like flexible film, the peeling means Is provided with an opening through which the stripping member enters and exits, one end edge of the strip-shaped flexible membrane is fixed to an upper end edge of the opening, and the strip-shaped flexible membrane extends from the lower end edge of the opening. The rubber member can be pulled out to the outside of the opening, and the other end edge of the flexible membrane is biased in the pull-back direction .

  According to a second aspect of the present invention, in the method for compressing and cutting a rubber member according to the first aspect, after the rubber member is disposed between the anvil and the cutter, the rubber member is positioned between the anvil and the cutter. After being sandwiched between a pair of clamping means and inserting a peeling member of the peeling means between the anvil and the rubber member, the pair of clamping means is moved away from the compressed surface of the rubber member, The rubber member is peeled off and cut.

According to a third aspect of the present invention, in the method for compressing and cutting a rubber member according to the first or second aspect, the peeling member is a plate-like member, and the plate-like member has a plate thickness of the anvil side. Is thin, and the cross-sectional shape of the plate-like member formed so as to become thicker as it moves away from the anvil is a wedge shape.

According to a fourth aspect of the present invention, in the method for compressing and cutting a rubber member according to any one of the first to third aspects, the rubber member is a sheet-like long rubber member, and the sheet-like long rubber member is The sheet is pulled out and conveyed by the clamping means .

According to a fifth aspect of the present invention, there is provided a rubber member compression cutting device comprising an anvil and a cutter, wherein a rubber member is cut by pressing of the anvil and the cutter, and a peeling device disposed adjacent to the anvil. The peeling device includes a peeling member that can be inserted and removed between the anvil and the rubber member, the peeling device includes a strip-shaped flexible film, and the peeling device includes the stripping member in and out. And an end edge of the band-shaped flexible membrane is fixed to an upper end edge of the opening portion, and the band-shaped flexible membrane can be pulled out from the lower end edge of the opening portion to the outside of the opening portion. And the other end edge of the flexible membrane is biased in the pull-back direction .

According to a sixth aspect of the present invention, in the compression / cutting device for a rubber member according to the fifth aspect of the present invention, the rubber member compression / cutting device includes a pair of clamping means that are positioned between the anvil and the cutter and clamp the rubber member. It is a compression cutting device for rubber members .

According to a seventh aspect of the present invention, in the compression / cutting device for a rubber member according to the fifth or sixth aspect , the peeling member is a plate-like member, and the plate-like member has a plate thickness of the anvil side. Is thin, and becomes thicker as the distance from the anvil increases, and the cross-sectional shape of the plate-like member is a wedge shape .

The invention according to claim 8 is the compression-cutting device for a rubber member according to any one of claims 5 to 7 , wherein the rubber member is a sheet-like long rubber member. .

According to the first aspect of the present invention, the rubber member compressed and cut and adhered to the anvil is peeled off after being peeled off from the anvil by the peeling device. Providing a rubber member with high accuracy in terms of shape and length, which can prevent elongation, and making the overlapping of joint parts of products manufactured using this rubber member constant, accuracy and uniformity High-quality products can be manufactured. Further, the peeling means includes a strip-like flexible membrane, and the peeling means includes an opening through which the peeling member enters and exits, and one end edge of the strip-like flexible membrane is fixed to an upper end edge of the opening through which the peeling member enters and exits. The strip-shaped flexible membrane can be pulled out from the lower edge of the opening to the outside of the opening, and the other edge of the flexible membrane is biased in the pull-back direction. The strip-shaped flexible membrane is pulled out from the lower end edge of the aperture along the peeled member as it goes outside from the opening to be inserted in between, and the strip-shaped flexible membrane in the portion that has previously contacted the rubber member is the rubber member Since the strip-like flexible membrane that sequentially contacts without being moved is pulled out, the resistance when the peeling member is inserted between the rubber member and the anvil is reduced, and the insertion becomes even easier. To further improve the accuracy of deformation and length The ability.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, after the rubber member is clamped by the pair of clamping means located between the anvil and the cutter, the rubber member is clamped by the anvil and the cutter. Since it is compressed, the position of the rubber member does not change when the rubber member is compressed by the anvil and the cutter, and high dimensional accuracy can be maintained. Further, since the rubber member is held by the holding means, it can be easily peeled off after being compressed.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the peeling member is a plate-like member, and the thickness of the plate is thin on the anvil side and is separated from the anvil. It is easy to insert the peeling member between the anvil and the rubber member adhering to the anvil, and it is possible to remove it while maintaining the cross-sectional shape of the compressed rubber member. Thus, the cross-sectional shape and length accuracy of the rubber member can be further increased.

According to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3, the rubber member is a sheet-like long rubber member and is drawn and conveyed by the clamping means. By sequentially compressing and cutting the rubber member, a sheet-like rubber member having a predetermined length can be manufactured continuously.

According to the fifth aspect of the present invention, the rubber member that has been compressed and cut and adhered to the anvil is peeled off from the anvil by the peeling device and is peeled off and cut, so that deformation of the cut surface of the rubber member and elongation of the member are prevented. Providing a rubber member with high accuracy in terms of shape and length, providing a uniform overlay of joint parts of products manufactured using this rubber member, and high accuracy and uniformity The product can be manufactured. Further, the peeling device includes a strip-shaped flexible film, and one end edge of the strip-shaped flexible film is fixed to an upper end edge of the opening portion through which the peeling member enters and exits, and the strip-shaped flexible film includes the strip-shaped flexible film. It can be pulled out from the lower edge to the outside of the opening, and the other edge of the flexible membrane is biased in the pullback direction.

According to the invention described in claim 6 , in addition to the effect of the invention described in claim 5, the rubber member is provided with a pair of clamping means for clamping the rubber member located between the anvil and the cutter. It does not move when compressed by the cutter, and high dimensional accuracy can be maintained. Further, since the rubber member is held by the holding means, it can be easily peeled off after being compressed.

According to the seventh aspect of the present invention, in addition to the effects of the fifth and sixth aspects of the present invention, the peeling member is a plate-like member, and the thickness of the plate is thin on the anvil side and is separated from the anvil. Since the cross-sectional shape of the plate-like member is wedge-shaped, the peeling member can be easily inserted between the anvil and the rubber member adhering to the anvil, and the cross-sectional shape of the compressed rubber member can be reduced. It can be peeled off while being held, and the accuracy of the cross-sectional shape and length of the rubber member can be further increased.

According to the eighth aspect of the invention, in addition to the effects of the fifth to eighth aspects of the invention, the rubber member is a sheet-like long rubber member that is drawn out and conveyed by the clamping means. By sequentially compressing and cutting the rubber member, a sheet-like rubber member having a predetermined length can be manufactured continuously.

It is a perspective view of the compression cutting device in one Example of this invention. It is the side view which showed the compression cutting process by a compression cutting device. It is the side view which showed the compression cutting process by a compression cutting device. It is the side view which showed the compression cutting process by a compression cutting device. It is the side view which showed the compression cutting process by a compression cutting device. It is the side view which showed the compression cutting process by a compression cutting device. It is the side view which showed the compression cutting process by a compression cutting device. It is the side view which showed the compression cutting process by a compression cutting device. It is the side view which showed the compression cutting process by a compression cutting device. It is the side view which showed the compression cutting process by a compression cutting device. It is the side view which showed the compression cutting process by a compression cutting device. It is the side view which showed the compression cutting process by a compression cutting device. It is a principal part longitudinal cross-sectional view of the compression cutting apparatus provided with the other peeling apparatus. It is the principal part longitudinal cross-sectional view which showed the compression cutting process by the compression cutting apparatus provided with the other peeling apparatus. It is the principal part longitudinal cross-sectional view which showed the compression cutting process by the compression cutting apparatus provided with the other peeling apparatus. It is the principal part longitudinal cross-sectional view which showed the compression cutting process by the compression cutting apparatus provided with the other peeling apparatus. It is the principal part longitudinal cross-sectional view which showed the compression cutting process by the compression cutting apparatus provided with the other peeling apparatus. It is the principal part longitudinal cross-sectional view which showed the compression cutting process by the compression cutting device provided with the other peeling apparatus. It is the principal part longitudinal cross-sectional view which showed the compression cutting process by the compression cutting device provided with the other peeling apparatus. It is the principal part longitudinal cross-sectional view which showed the compression cutting process by the compression cutting device provided with the other peeling apparatus. It is the principal part longitudinal cross-sectional view which showed the compression cutting process by the compression cutting device provided with the other peeling apparatus. It is the principal part longitudinal cross-sectional view which showed the compression cutting process by the compression cutting device provided with the other peeling apparatus. It is a principal part side view of the compression cutting device which gave the surface of the anvil and the cutter. It is a principal part side view of the compression cutting device provided with the ventilation means which ventilates cooling air to the compressed rubber member. It is a side view of the conventional compression cutting device.

  An embodiment according to the present invention will be described below with reference to FIGS.

  The compression cutting apparatus 1 of this embodiment and the compression cutting method using the compression cutting apparatus 1 compress and cut an unvulcanized sheet-like rubber member 2 serving as a tire member such as an inner liner to a predetermined length.

FIG. 1 is a perspective view illustrating a compression cutting device 1 of the present embodiment.
The sheet-like rubber member 2 is a member for forming a tire such as an inner liner, and after unvulcanized rubber material is extruded and formed into a long sheet shape by a roller die, the sheet-like rubber member 2 is wound up by a roll 3. In FIG. 2, the right side is the upstream side to which the sheet-like rubber member 1 is supplied, and the left side is the downstream side.

  The compression cutting device 1 compresses and cuts the sheet-like rubber member 2 by a compressive force between the anvil 4 in which the upper surface that becomes an anvil when the sheet-like rubber member 2 is cut and the anvil 4 is flat. A crash cutter 5 is provided.

The crash cutter 5 is disposed above the anvil 4 and is moved up and down in the vertical direction by a driving device 7 by a cylinder, a motor or other mechanical means via a rod 6. When the crash cutter 5 is moved downward by the drive device 7 , the cutter tip 5 a of the crash cutter is pressed against the anvil 4.

  The width of the anvil 4 and the crash cutter 5, that is, the width in the direction perpendicular to the direction in which the sheet-like rubber member 2 is supplied is formed wider than the width of the sheet-like rubber member 2.

  The compression cutting device 1 is provided with an upstream clamping means 10 on the upstream side of the sheet-like rubber member 2 and a downstream clamping means 11 on the downstream side with respect to the anvil 4 and the crash cutter 5. The upstream side clamping means 10 and the downstream side clamping means 11 are each provided with an upper clamping member 12 and a lower clamping member 13, and the upper clamping member 12 is driven by a cylinder or a motor via a rod 14 or the like. 15 is moved up and down in the vertical direction. When the upper sandwiching member 12 is moved downward and the sheet-like rubber member 2 is sandwiched between the upper sandwiching member 12 and the lower sandwiching member, the sandwiching means enters a sandwiching state in which the sheet-like rubber member 2 is sandwiched, and the upper sandwiching member 12 is driven. When moved upward by the apparatus, the clamping means is in a clamping release state in which the clamping of the sheet-like rubber member is released.

  The downstream clamping means 11 is moved in the horizontal direction by a driving means (not shown) on a rail (not shown) disposed along the longitudinal direction of the sheet-like rubber member 2.

  The sheet-like rubber member 2 can be pulled out from the roll 3 by sandwiching the sheet-like rubber member 2 with the downstream-side sandwiching means 11 being sandwiched and horizontally moving it downstream.

  Further, when the downstream side clamping means 11 is moved in the downstream direction after being compressed and cut, the sheet-like rubber member 2a compressed and cut to a predetermined length is unloaded from the compression device 1, and a belt conveyor (not shown) or the like After being moved to the conveying means, it can be sent out to the next step as the nipping release state.

  Further, the compression cutting device 1 includes a peeling device 20 for peeling the sheet-like rubber member 2 compressed by the crash cutter 5 and adhered onto the anvil 4.

  The peeling device 20 is provided adjacent to the upstream side of the anvil 4 and includes a peeling plate 21 as a peeling member. The peel-off plate 21 is a plate-like member, and is formed so that the plate thickness is thin on the anvil side and becomes thicker as it is away from the anvil, and the cross-sectional shape is formed in a substantially wedge shape. The width of the peeling plate 21 is set to be wider than the width of the sheet-like rubber member 2.

  The stripping plate 21 is moved in the upstream or downstream direction along the sheet-like rubber member 2 by a driving device 23 such as a cylinder, a motor, or other mechanical means via the rod 22. . When the peeling plate 21 is moved in the downstream direction by the driving device 23, the peeling plate 21 is inserted between the sheet-like rubber member 2 adhered on the anvil 6 and the anvil 4, and when the peeling plate 21 moves in the upstream direction, the sheet-like rubber member 2 is moved. And escape from between anvil 4.

  The process of the compression cutting method of the sheet-like rubber member 2 by this compression cutting apparatus 1 is demonstrated below. 2 to 12 are side views showing the steps of this compression cutting method.

  As shown in FIG. 2, the sheet-like rubber member 2 is disposed between the crash cutter 5 and the anvil 4 and between the upper clamping member 12 and the lower clamping member of the upstream clamping means 10 and the downstream clamping means 11, respectively. Then, the upper side clamping member 12 of the upstream side clamping means 10 and the downstream side clamping means 11 is moved downward by the driving means 15 to be in a clamping state, and the sheet-like rubber member 2 is clamped by the upstream side clamping means 11 and the downstream side clamping means 12 Is done.

Then, as shown in FIGS. 3 and 4, the crash cutter 5 is lowered by the drive unit 7 via the rod 6, the sheet-like rubber member 2 is compressed pressed by crashing the cutter 5 in the anvil 4, the crash cutter 3 after its It is moved upward by the drive device 7 and returned to its original position. Since the sheet-like rubber member 1 is compressed by the crash cutter 5, the sheet-like rubber member 1 is stuck to the surface of the anvil 4.

  As shown in FIGS. 5 and 6, when the peeling plate 21 of the peeling device 20 is moved downstream by the driving device 23 and the peeling plate 21 is inserted between the sheet-like rubber member 2 and the anvil 4, The sheet-like rubber member 2 adhered to the anvil 4 is peeled off.

  Thereafter, as shown in FIG. 7, while the upstream clamping means 10 and the downstream clamping means 11 are maintained in the clamping state, the upstream clamping means 10 is positioned upstream and the downstream clamping means 11 is positioned downstream by the driving means. The sheet-like rubber member 2 that has been moved and compressed and cut is peeled to the left and right around the cut surface and cut to obtain a sheet-like rubber member 2a having a predetermined length.

  As shown in FIG. 8, the downstream-side clamping means 11 moves further downstream in the clamping state, carries out the compressed and cut sheet-like rubber member 2a from the compression device 1, and conveys a belt conveyor (not shown) After being moved to the conveying means, the nipping state is released, and the sheet-like rubber member 2a having a predetermined length is sent to the next step.

  As shown in FIG. 9 to FIG. 11, the end 2b of the sheet-like rubber member 2 is formed by the upper clamping member 12 and the lower clamping member 13 of the downstream clamping means 11 while the downstream clamping means 11 is in the clamping release state. Is moved horizontally to the position where it can be clamped, and then the upper clamping member 12 is moved downward to establish a clamping state. Thereafter, the upper clamping member 12 of the upstream clamping means 10 is moved upward to enter the clamping release state.

  As shown in FIG. 12, the downstream clamping means 11 returns to a predetermined position while holding the sheet-like rubber member 2, and the sheet-like rubber member 2 is pulled out from the roll 3 by a predetermined length. Thereafter, the upper clamping member 12 of the upstream clamping means 10 is moved downward to be in the clamping state. By repeating the steps of FIGS. 3 to 12, the sheet-like rubber member is repeatedly compressed and cut to a predetermined length.

  In this embodiment, the sheet-like rubber member 2 that has been compressed and cut and adhered to the anvil 4 is peeled off after being peeled off from the anvil 4 by the peeling device 20, so that the cut surface of the sheet-like rubber member 2 is deformed. And the elongation of the member can be prevented.

  Further, the sheet-like rubber member 2 is clamped by the upper clamping member 12 and the lower clamping member 13 of the upstream clamping means 10 and the downstream clamping means 11 which are a pair of clamping means located between the anvil 4 and the crash cutter 5. Then, since the sheet-like rubber member 2 is compressed by the anvil 4 and the crash cutter 5, the position of the sheet-like rubber member 2 does not change when compressed, and high dimensional accuracy can be maintained.

  Further, since the sheet-like rubber member is sandwiched between the upstream-side sandwiching means 10 and the downstream-side sandwiching means 11, it can be easily peeled off after being compressed.

  The peel-off plate 21 is a plate-like member, and the cross-sectional shape is formed in a substantially wedge shape so that the thickness of the plate is thin on the anvil side and becomes thicker as it is away from the anvil 4, so that it adheres to the anvil 4 and the anvil 4. It is possible to easily insert the peeling plate 21 between the sheet-like rubber members 2 that are pressed, and to peel off the sheet-like rubber member 2 while maintaining the cross-sectional shape of the compressed sheet-like rubber member 2. The accuracy of the sectional shape and the length of 2 can be made high.

  As described above, in the compression cutting method and the compression cutting apparatus 1 according to the present embodiment, it is possible to provide the sheet-like rubber member 2 having high accuracy with respect to the shape and length, and the cut sheet-like rubber member 2 is used. Thus, it is possible to produce a tire with high accuracy and uniformity by making the overlapping of the joint portions of the tire manufactured in this way constant.

  Next, an embodiment of a rubber member compression cutting method and apparatus to which another peeling device 30 is applied is shown in FIGS.

  The compression cutting apparatus according to the present embodiment includes a peeling apparatus 30 instead of the peeling apparatus 20 according to the first embodiment. The peeling device 30 is provided adjacent to the upstream side of the anvil 4, and includes a peeling plate 31 having a substantially wedge-shaped cross section and a driving device 34 that moves the peeling plate via the rod 32.

  As shown in FIG. 13, the peeling device 30 includes a case 34, the case 34 is provided with an opening 35 through which the peeling plate 31 can go in and out, and the lower surface of the case 34 is described later. An opening 34a that is opened so that the band-like flexible film 36 can be drawn out is slightly wider than the width of the band-like flexible film 36, and an opening 34b is provided on the upstream wall surface, A rod 32 for moving the peeling plate 31 passes through the opening 34b.

  Further, the peeling device 30 includes a belt-like flexible film 36 that is made of a flexible material such as resin, paper, or cloth and has a width substantially the same as the width of the peeling plate 31 and is formed in a belt shape. Yes. One end edge 36a of the strip-shaped flexible film 36 is fixed to the upper end edge 35a of the opening 35 by a fastener 37, and is pulled back into the case 34 so as to cover the front end of the peeling plate 31, and the case is opened from the opening 34a. It is pulled out of 34. A portion of the opening 34a that is in contact with the strip-shaped flexible film 36 is formed in a curved surface so that the strip-shaped flexible film 36 can be easily pulled out.

  A weight 39 is attached to the other end edge 36b of the belt-like flexible film 36, and the weight 39 functions as a biasing means 38 for biasing the belt-like flexible film 36 in the pull-back direction.

  A compression cutting method and a compression cutting apparatus according to the present embodiment are shown in FIGS.

  The sheet-like rubber member 2 in FIG. 13 is sandwiched in the same manner as in the first embodiment by an upstream sandwiching means 10 and a downstream sandwiching means 11 not shown. Furthermore, as shown in FIG. 14, the sheet-like rubber member 2 is compressed by pressing the crash cutter 5 against the anvil 4.

  As shown in FIG. 15, the cutter 5 is returned to a predetermined position, and the peeling plate 31 of the peeling device 30 is moved in a direction to be inserted between the anvil 4 and the sheet-like rubber member 2 adhered to the anvil 4. Since one end edge 36a of the strip-shaped flexible film 36 is fixed to the upper end edge 34a of the opening 35 by a fastener 37, the negative force of the weight 39, which is the negative means 38, moves as the peeling plate 30 moves to the anvil side. On the contrary, the belt-like flexible film 36 is drawn out from the opening 35 to the anvil side. Since the one end edge 36a of the belt-like flexible film 36 is fixed to the upper edge 34a of the opening 35, the portion of the belt-like flexible film 36 that is drawn out and contacts the sheet-like rubber member 2 first is the sheet. It does not move relative to the rubber member 2. The peeling plate 31 further moves, and the sheet-like rubber member 2 adhered to the anvil 4 by the peeling plate 31 and the strip-shaped flexible film 36 is peeled from the anvil 4 and is put on the strip-shaped flexible film 36. .

  As shown in FIG. 16, the sheet-like rubber member 2 is pulled apart in the opposite direction by the clamping means 10 and 11 and cut.

  As shown in FIG. 17, when the peeling plate 36 is moved into the case 34 by the driving means 33 through the rod 32, the band-like flexible film 36 is moved from the opening 35 to the inside of the case 34 by the biasing means 38. Pulled back to.

  In the compression cutting method and the compression cutting apparatus of the present embodiment, the strip-shaped flexible film 36 is sequentially pulled out from the lower end edge 35b of the opening 35 as the peeling plate 31 is inserted between the anvil 4 and the sheet-like rubber member 2. Therefore, the portion of the belt-like flexible film 36 that is drawn out and contacts the sheet-like rubber member 2 first does not move relative to the sheet-like rubber member 2, and the sheet-like rubber member 2. The resistance when the peeling plate 31 is inserted between the anvil 4 and the anvil 4 is reduced, and the friction between the highly adhesive sheet-like rubber member 2 and the peeling plate 31 can be reduced. When the sheet-like rubber member 2 is peeled from the anvil 4, the cross-sectional shape of the sheet-like rubber member is not deformed, the cross-sectional shape of the sheet-like rubber member 2 is prevented from being deformed, and the length of the sheet-like rubber member 2 is increased. Can do.

  The compression cutting method and apparatus of the present embodiment includes a peeling device 40 instead of the peeling device 20 of the first embodiment, and the peeling device 40 is a biasing means instead of the biasing means 38 of the peeling device 30 described above. 48 has been applied.

  The peeling device 40 includes a peeling plate 41, a driving means 43 that moves the peeling plate 41 via a rod 42, a case 44, a strip-shaped flexible film 46, and a biasing means 48. The case 44 is provided with an opening 45 through which the peeling plate 41 can go in and out, further provided with an opening 44b on the upstream wall surface, and a rod 42 that moves the peeling plate 41 passes through the opening 44a. . One end edge 46a of the strip-shaped flexible membrane 46 is fixed to the upper end edge 45a of the opening 45 of the case 44 by a fastener 47, and the other end edge 46b is negatively pulled back into the case 44 by the biasing means 48. It is energized.

  The biasing means 48 includes a cylindrical winding unit 50, and the winding unit 50 is supported by a bracket 49 on the upstream side of the lower surface of the peeling plate 41. The other end edge 46b of the strip-shaped flexible membrane 46 is attached to the winding portion 50, and the winding portion 50 is biased in the direction of winding the strip-shaped flexible membrane 46 by a spring spring (not shown), It works as a negative means 48.

  In the compression cutting method and apparatus of the present embodiment, since the biasing means 48 is applied, like the effect of the second embodiment, the belt-like flexible film 46 can be easily wound and pulled out, and the sheet-like rubber member 2 can prevent deformation of the cut surface and increase the accuracy of the length of the sheet-like rubber member 2.

  Further, as shown in FIG. 21, the anvil 4 and the crush cutter 5 used in the first to third embodiments may be replaced with an anvil 50 and a crush cutter 51 whose surface has been subjected to embossing. By embossing the anvil 50 and the crash cutter 51, the adhesive strength of the sheet-like rubber member 2 to the anvil 50 during compression cutting can be reduced, and the product accuracy can be further improved.

  Furthermore, as shown in FIG. 22, the compression cutting apparatus according to the first to third embodiments is provided with a blowing means 52 for sending cooling air in the vicinity of the crash cutter 5 so that the cooling air is compressed by the sheet-like rubber member 2. Air may be blown to the cut surface to cool the sheet-like rubber member. By cooling the compression cut surface, it is possible to reduce the adhesive force of the sheet-like rubber member and improve the product accuracy.

  In the compression cutting method and the compression cutting apparatus according to the first to third embodiments, the peeling device is disposed adjacent to the upstream side of the anvil. However, the peeling device is adjacent to the downstream side of the anvil. Alternatively, it may be arranged adjacent to the side of the anvil so that the moving direction of the peeling plate is perpendicular to the flow direction of the sheet-like rubber member.

DESCRIPTION OF SYMBOLS 1 ... Compression cutting device, 2 ... Sheet-like rubber member, 3 ... Roll, 4 ... Anvil, 5 ... Crash cutter, 6 ... Rod, 7 ... Drive device,
10: upstream clamping means, 11: downstream clamping means, 12: upper clamping member, 13: lower clamping member, 14 ... rod, 15 ... driving means,
20 ... Peeling device, 21 ... Peeling plate, 22 ... Rod, 23 ... Drive device,
30 ... Peeling device, 31 ... Peeling plate, 32 ... Rod, 33 ... Drive device, 34 ... Case, 35 ... Opening, 36 ... Strip flexible film, 37 ... Clamp, 38 ... Biasing means, 39 ... Weight ,
40 ... peeling device, 41 ... peeling plate, 42 ... rod, 43 ... driving device, 44 ... case, 45 ... opening, 46 ... strip-like flexible membrane, 47 ... clip, 48 ... negative force means, 49 ... bracket , 50 ... Mainspring,
55 ... Anvil, 56 ... Crush cutter, 57 ... Blower means, 58 ... Blower,
60 ... compression cutting device, 61 ... sheet rubber member, 62 ... anvil, 63 ... cutter.

Claims (8)

In a method of compressing and cutting a rubber member with an anvil and a cutter,
The rubber member is disposed between the anvil and the cutter;
The rubber member is compressed by the anvil and the cutter,
Insert a peeling member of the peeling means between the anvil and the rubber member,
The rubber member is peeled off and cut .
The peeling means includes a strip-like flexible film,
The peeling means includes an opening through which the peeling member enters and exits,
One end edge of the strip-shaped flexible membrane is fixed to the upper end edge of the opening,
The strip-shaped flexible membrane can be pulled out from the lower edge of the opening to the outside of the opening,
A method for compressing and cutting a rubber member, wherein the other end edge of the flexible membrane is biased in the pullback direction . After placing the rubber member between the anvil and the cutter,
The rubber member is clamped by a pair of clamping means located between the anvil and the cutter,
After inserting the peeling member of the peeling means between the anvil and the rubber member,
Moving the pair of clamping means in a direction away from the compressed surface of the rubber member;
The method for compressing and cutting a rubber member according to claim 1, wherein the rubber member is peeled off and cut. The stripping member is a plate-shaped member,
The plate-shaped member is formed so that the plate has a thin thickness on the anvil side and becomes thicker as the plate is separated from the anvil, and the cross-sectional shape of the plate-shaped member is a wedge shape. A method for compressing and cutting a rubber member according to claim 2. The rubber member is a sheet-like long rubber member,
The method for compressing and cutting a rubber member according to any one of claims 1 to 3, wherein the sheet-like long rubber member is drawn out and conveyed by the clamping means . In a compression-cutting device for a rubber member that includes an anvil and a cutter, and the rubber member is cut by pressing the anvil and the cutter.
Comprising a peeling device disposed adjacent to the anvil;
The peeling device includes a peeling member that can be inserted and removed between the anvil and the rubber member,
The peeling device includes a strip-shaped flexible film,
The peeling device includes an opening through which the peeling member enters and exits,
One end edge of the strip-shaped flexible membrane is fixed to the upper end edge of the opening,
The strip-shaped flexible membrane can be pulled out from the lower edge of the opening to the outside of the opening,
A compression cutting apparatus for a rubber member, wherein the other end edge of the flexible membrane is biased in the pullback direction. The rubber member compression-cutting device according to claim 5 , further comprising a pair of clamping means positioned between the anvil and the cutter to clamp the rubber member . The stripping member is a plate-shaped member,
7. The plate-like member according to claim 5 or 6 , wherein the plate-like member has a thin plate on the anvil side and becomes thicker as it is separated from the anvil, and a cross-sectional shape of the plate-like member is a wedge shape. The rubber member compression cutting device. The rubber member compression-cutting device according to any one of claims 5 to 7, wherein the rubber member is a sheet-like long rubber member .

Images