CN112058949A

CN112058949A - Device for stamping die

Info

Publication number: CN112058949A
Application number: CN202011039746.5A
Authority: CN
Inventors: 邱靖涌
Original assignee: Jiaxing Huading Heat Preservation Technology Co ltd
Current assignee: Jiaxing Huading Heat Preservation Technology Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-12-11
Anticipated expiration: 2040-05-09
Also published as: CN112058949B; JP2021176649A; CN111375687B; JP6912139B1; CN111375687A

Abstract

The invention belongs to the field of stamping dies, and particularly relates to a device for a stamping die, which comprises a base, a winding roller A, a flattening mechanism, a stamping platform, a supporting arm, a punch, a winding roller B and an electric drive module D, wherein a strip is wound on the winding roller A arranged on one side of the base; according to the invention, the strip with a certain winding radian, which is released from the winding roller A, is enabled to be flat and unfolded through the interaction of the flattening mechanism and the strip with the radian, which is released from the winding roller A, so that the strip passing through the punching platform can be effectively punched by the punch, the punching quality of the strip by the punch is improved, and the punching efficiency is improved.

Description

Device for stamping die

Technical Field

The invention belongs to the field of stamping dies, and particularly relates to a device for a stamping die.

Background

The stamping is a forming method in which a press and a die are used to apply external force to a plate, a strip, a pipe, a profile, etc. to cause plastic deformation or separation, thereby obtaining a workpiece (stamped part) of a desired shape and size. Stamping and forging are plastic working (or called pressure working), and are called forging and pressing. The stamped blanks are mainly hot and cold rolled steel sheets and strips.

The punching processing has high production efficiency, convenient operation and easy realization of mechanization and automation. This is because the press works by means of a die and a press apparatus, the number of strokes of a general press machine can be several tens of times per minute, the high-speed press can be several hundreds or even more than thousands of times per minute, and one punch can be obtained per press stroke. During stamping, the die ensures the size and shape precision of the stamping part, the surface quality of the stamping part is generally not damaged, and the service life of the die is generally longer, so that the stamping quality is stable, the interchangeability is good, and the stamping die has the characteristics of one die being the same. The stamping can be used for processing parts with large size range and complex shape, such as a stopwatch of a clock, a longitudinal beam of an automobile, a covering part and the like, and has high strength and rigidity due to the cold deformation hardening effect of the material during stamping. The stamping is generally free from the generation of chips and scraps, the material consumption is less, and other heating equipment is not needed, so that the method is a material-saving and energy-saving processing method, and the cost of the stamping is lower.

In the process of stamping the steel strip or other strips, the steel strip or the strips are firstly wound on the winding roller and have winding radian, and when the steel strip or the strips are pulled out from the winding roller to reach the punch, the steel strip or the strips have certain upward arc radian, so that the punch is not favorable for effectively stamping the steel strip or the strips, the stamping quality is poor, the strips or the steel strip is wasted, and the utilization rate of the steel strip or the strips is reduced.

In order to solve the problem that the steel strip or strip pulled to be separated from the winding roller is unfavorable for stamping due to a certain winding radian because the steel strip or strip serving as a raw material is in a winding form in the traditional stamping process, it is necessary to design stamping die equipment for flattening and straightening the steel strip or strip wound on the winding roller before stamping.

The present invention is directed to an apparatus for a press mold that solves the above problems.

Disclosure of Invention

In order to solve the above defects in the prior art, the invention discloses a device for a stamping die, which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

An apparatus for a stamping die, characterized by: the device comprises a base, a winding roller A, a flattening mechanism, a stamping platform, a supporting arm, a punch, a winding roller B and an electric drive module D, wherein a strip is wound on the winding roller A arranged on one side of the base; a flattening mechanism for flattening the strip with radian is arranged on the base; a stamping platform is arranged on the base, a supporting arm is arranged on the stamping platform, and a punch is arranged on the supporting arm; the punch is matched with the stamping platform to stamp the strip which is extruded to be flat by the flattening mechanism; the other side of the base is provided with a winding roller B driven to rotate by an electric driving module D, and the winding roller B winds and recovers the punched strip; and a structure for flattening burrs formed after the punching is finished and pressing the strip material with the burrs to form a certain radian so as to facilitate the winding roller B to wind and recover the strip material is arranged between the winding roller B and the punching platform.

The flattening mechanism comprises a shell, an oil cylinder A, a sliding plug A, a push rod A, a spring A, a pinch roller A, a supporting wheel A, a control valve, an oil tank, a one-way valve, a sliding sleeve A, a sliding plug B, a push rod B, a pinch roller B, a spring B, a supporting wheel B, an oil cylinder B, a sliding plug C, a spring C, a sliding sleeve B, a sliding plug D and a spring D, wherein the oil cylinder A and the sliding sleeve A are sequentially installed in the shell installed on the base along the advancing direction of a strip; a sliding plug A is vertically and hermetically slid in the oil cylinder A, a push rod A is mounted at the lower end of the sliding plug A, and a pressing wheel A is rotatably matched at the lower end of the push rod A; a spring A for resetting the sliding plug A is nested on the push rod A; the pinch roller A is matched with two equal-height supporting wheels A which are symmetrically arranged below the pinch roller A and are distributed at intervals along the advancing direction of the strip material so as to extrude the strip material with radian passing through the pinch roller A to be straight; a sliding plug B is vertically and hermetically slid in the sliding sleeve A, a push rod B is installed at the lower end of the sliding plug B, and a pressing wheel B is rotatably matched at the lower end of the push rod B; the top in the sliding sleeve A is provided with a vent groove A communicated with the outside; a through communication groove A on the side wall of the sliding plug B is matched with an oil inlet B and an oil outlet B on the side wall of the sliding sleeve A; a spring B for resetting the sliding plug B is nested on the push rod B; the pinch roller B is matched with two equal-height supporting wheels B which are symmetrically arranged below the pinch roller B and are distributed at intervals along the advancing direction of the strip material so as to judge whether the strip material is extruded by the pinch roller A to be straight or not and adjust the downward extrusion amplitude of the pinch roller A to the strip material through a series of transmission; an oil outlet A on the side wall of the oil cylinder A is communicated with an oil tank arranged on the outer side of the shell through an oil pipe A provided with a control valve; an oil inlet A at the top of the oil cylinder A is communicated with an oil outlet B on the sliding sleeve A through an oil pipe B provided with a one-way valve.

An oil cylinder B is arranged on the outer side of the shell, a sliding plug C is arranged in the oil cylinder B in a sealing sliding mode, and a pre-compression spring C for resetting the sliding plug C is arranged in the oil cylinder B; an oil outlet C on the oil cylinder B is communicated with an oil inlet B on the sliding sleeve A through an oil pipe C, and an oil inlet C on the oil cylinder B is connected with a hydraulic system through an oil pipe E; two oil outlets D and two oil inlets D are symmetrically formed in the inner wall of the oil cylinder B between the sliding plug C and the oil outlet C; the oil inlet D and the oil outlet D on the same side are connected through an oil pipe D; a reset port is formed in the inner wall of the oil cylinder B between the sliding plug C and the oil inlet C; a sliding sleeve B is arranged at the reset port, and a sliding plug D is arranged in the sliding sleeve B in a sealing sliding manner; the top in the sliding sleeve B is provided with a vent groove B communicated with the outside; a pre-compression spring D for resetting the sliding plug D is arranged in the sliding sleeve B; and a communicating groove B is formed in the end surface, opposite to the oil inlet D, of the sliding plug C, and the communicating groove B is communicated with a through communicating groove C formed in the side wall of the sliding plug C.

As a further improvement of the technology, the base is provided with a support I, a support A and a support F; the winding roller A is arranged on the support A, and the winding roller B is arranged on the support I; the support F is provided with an arc-shaped block A through a support G; the L rod is in rotating fit with a swing pin arranged on the side surface of the support F, and one end of the L rod is provided with an arc-shaped block B; the arc blocks A and B are matched with the strip; one end of the L rod, which is not provided with the arc block B, is hinged with a connecting rod; a crank wheel is rotatably arranged on the support F, and a crank pin arranged on the crank wheel is rotatably matched with the tail end of the connecting rod; a shaft on which the crank wheel is arranged is provided with a bevel gear F; an electric driving module C is installed on the support F, and a bevel gear E meshed with the bevel gear F is installed on an output shaft of the electric driving module C; a support H is arranged on the support I, and a guide roller matched with the strip is arranged on the support H; the guide roller is positioned between the arc block A and the winding roller B.

As a further improvement of the technology, the shaft of the winding roller B is in rotating fit with the support I; the electric drive module D is arranged on the support I; the output shaft of the electric drive module D is provided with a bevel gear G, and the bevel gear G is meshed with a bevel gear H arranged on the shaft of the winding roller B.

As a further improvement of the technology, a support B is arranged on the support A; two vertically distributed clamping rollers A are arranged on the support B; a bevel gear B is arranged on a shaft A where one of the clamping rollers A is arranged; an electric driving module A is installed on the support B, and a bevel gear A meshed with the bevel gear B is installed on an output shaft of the electric driving module A; the two clamping rollers A are positioned between the winding roller A and the flattening mechanism; a support E is arranged on the support I, and two vertically distributed clamping rollers B are arranged on the support E; a bevel gear D is arranged on a shaft B where one of the clamping rollers B is arranged; an electric driving module B is installed on the support E, and a bevel gear C meshed with the bevel gear D is installed on an output shaft of the electric driving module B; the two clamping rollers B are positioned between the arc-shaped block A and the flattening mechanism.

As a further improvement of the technology, the side wall of the shell is provided with a movable groove for penetrating through the belt material; a sealing ring A matched with the inner wall of the oil cylinder A is nested on the sliding plug A; the tail end of the push rod A is provided with a U-shaped seat A, and the pressing wheel A is arranged in the U-shaped seat A; one end of the spring A is connected with the lower end face of the oil cylinder A, and the other end of the spring A is connected with the U-shaped seat A; the two supporting wheels A are arranged between the two supports C; the tail end of the push rod B is provided with a U-shaped seat B, and the pressing wheel B is arranged in the U-shaped seat B; one end of the spring B is connected with the lower end face of the sliding sleeve A, and the other end of the spring B is connected with the U-shaped seat B; the two supporting wheels B are arranged between the two supports D; the oil cylinder A and the sliding sleeve A are arranged in the shell through a fixed seat B; the oil cylinder B is arranged on the outer side of the shell through two fixed seats A; a limiting ring A and a limiting ring B for limiting the sliding amplitude of the sliding plug C are arranged in the oil cylinder B; one end of the spring C is connected with a fixed ring arranged in the oil cylinder B, and the other end of the spring C is connected with the tail end of the sliding plug C; a sealing ring B matched with the inner wall of the sliding sleeve B is nested on the sliding plug D; a limiting ring C for limiting the sliding amplitude of the sliding plug D is arranged in the sliding sleeve B; one end of the spring D is connected with the end face of the sliding plug D, and the other end of the spring D is connected with the inner wall of the sliding sleeve B.

Compared with the traditional stamping die equipment, the flat mechanism interacts with the strip with the radian released from the winding roller A, so that the strip with the certain winding radian released from the winding roller A becomes flat and unfolded, and the strip passing through the stamping platform is effectively stamped by the punch, thereby improving the stamping quality of the strip by the punch and the stamping efficiency.

The flattening mechanism can continuously adjust the downward extrusion amplitude of the pressing wheel A along with the increase of the upper arc degree of the reduction of the winding diameter of the strip on the winding roller A, so that the strip is continuously flattened, the strip reaching the punch head is flat and straight, and the stamping quality of the strip is improved.

According to the invention, the interaction of the arc blocks A and B intermittently performs radian bending pressing to a certain degree on the punched strip, so that the strip is bent to a certain radian again after being punched, the strip is conveniently and smoothly wound on the winding roller B, the number of the strips wound on the winding roller B is increased, and the utilization rate of the winding roller and the winding recovery efficiency of the strip by the winding roller are improved.

In addition, before the punched strip is wound and recovered, the burrs punched by the punch on the strip are flattened, so that the strip is wound on the winding roller B more tightly, and the efficiency of winding and recovering the strip by the winding roller is improved. The invention has simple structure and better use effect.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention and its entirety.

FIG. 2 is a schematic cross-sectional view of the electric driving module A, a bevel gear B, a shaft A, a clamping roller A and a strip material.

Fig. 3 is a schematic cross-sectional view of the electric driving module B, a bevel gear C, a bevel gear D, a shaft B, a clamping roller B and the strip material.

Fig. 4 is a schematic cross-sectional view of the winding roller B, the bevel gear H, the bevel gear G and the electric drive module D in cooperation.

FIG. 5 is a schematic view of the base, a support A, a winding roller A, a support B, a clamping roller A, a support I, a winding roller B, a support E, a clamping roller B, a support H, a guide roller, a stamping platform and a support arm in cooperation.

Fig. 6 is a schematic view of the arc block A and the matching of the strip material and the arc block B.

Fig. 7 is a schematic view of two views of the support F, the support G, the arc block a, the arc block B, L rod, the connecting rod, the crank wheel, the bevel gear F, the bevel gear E and the electric drive module C.

Figure 8 is a cross-sectional view of the pinch roller A, the strip and the support roller A.

FIG. 9 is a schematic cross-sectional view of the sliding plug C, the oil pipe D, the oil cylinder B, the sliding sleeve B, and the sliding plug D.

Fig. 10 is a schematic sectional view of the cylinder B.

Fig. 11 is a schematic sectional view of the spool C and its.

FIG. 12 is a schematic cross-sectional view of the sliding sleeve B, the limiting ring C, the sliding plug D and the spring D.

Fig. 13 is a schematic cross-sectional view of the flattening mechanism.

FIG. 14 is a schematic cross-sectional view of the cylinder, the sliding plug A, the push rod A, U, the seat A, and the press wheel A.

FIG. 15 is a schematic cross-sectional view of the sliding sleeve A, sliding plug B, push rod B, U type seat B, and press wheel B.

Number designation in the figures: 1. a base; 2. a support A; 3. a support B; 4. a winding roller A; 5. a nip roller A; 6. an axis A; 7. a bevel gear B; 8. a bevel gear A; 9. an electric drive module A; 10. a housing; 11. a movable groove; 12. an oil cylinder A; 13. an oil inlet A; 14. an oil outlet A; 15. a sliding plug A; 16. a sealing ring A; 17. a push rod A; 18. a spring A; 19. a U-shaped seat A; 20. a pinch roller A; 21. a support C; 22. a control valve; 23. an oil pipe A; 24. an oil tank; 25. a one-way valve; 26. a sliding sleeve A; 27. an oil outlet B; 28. an oil inlet B; 29. a vent groove A; 30. a sliding plug B; 31. a communicating groove A; 32. a push rod B; 33. a U-shaped seat B; 34. a pinch roller B; 35. a spring B; 36. a support wheel B; 37. a support D; 38. an oil pipe C; 40. an oil cylinder B; 41. an oil inlet C; 42. an oil outlet C; 43. an oil inlet D; 44. an oil outlet D; 45. a reset port; 46. a limiting ring A; 47. a limiting ring B; 48. a fixing ring; 49. a sliding plug C; 50. a communicating groove B; 51. a communicating groove C; 52. a spring C; 53. an oil pipe D; 54. a sliding sleeve B; 55. a vent groove B; 56. a sliding plug D; 57. a seal ring B; 58. a spring D; 59. a limiting ring C; 60. an oil pipe E; 61. an oil pipe B; 62. a fixed seat A; 63. a fixed seat B; 64. a stamping platform; 65. a support arm; 66. a punch; 67. a nip roller B; 68. a shaft B; 69. a bevel gear D; 70. a bevel gear C; 71. an electric drive module B; 72. a support E; 73. a support F; 74. an arc block A; 75. an L-bar; 76. swinging pin; 77. an arc block B; 78. a connecting rod; 79. a crank pin; 80. a crank wheel; 81. a support G; 82. a bevel gear F; 83. a bevel gear E; 84. an electric drive module C; 85. a guide roller; 86. a support H; 87. a winding roller B; 88. a bevel gear H; 89. a bevel gear G; 90. an electric drive module D; 91. a support I; 92. a strip of material; 93. a support wheel A; 94. a flattening mechanism.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1, it comprises a base 1, a winding roller a4, a flattening mechanism 94, a stamping platform 64, a supporting arm 65, a punch 66, a winding roller B87 and an electric driving module D90, wherein as shown in fig. 1 and 5, a strip material 92 is wound on a winding roller a4 arranged at one side of the base 1; a flattening mechanism 94 for flattening the strip 92 with radian is arranged on the base 1; a stamping platform 64 is arranged on the base 1, a supporting arm 65 is arranged on the stamping platform 64, and a punch 66 is arranged on the supporting arm 65; the punch 66 cooperates with the punching platform 64 to punch the flat strip 92 pressed by the flattening mechanism 94; as shown in fig. 1 and 4, the other side of the base 1 is provided with a winding roller B87 driven by an electric driving module D90 to rotate, and the winding roller B87 winds and recovers the punched strip 92; as shown in fig. 1, 4 and 5, the winding roller B87 and the punching platform 64 are configured to flatten burrs formed after the punching process is completed and to press the deburred strip material 92 into a certain curvature so as to facilitate the winding roller B87 to wind and recover the strip material 92.

As shown in fig. 9 and 13, the flattening mechanism 94 includes a housing 10, an oil cylinder a12, a sliding plug a15, a push rod a17, a spring a18, a pressure wheel a20, a support wheel a93, a control valve 22, an oil tank 24, a check valve 25, a sliding sleeve a26, a sliding plug B30, a push rod B32, a pressure wheel B34, a spring B35, a support wheel B36, an oil cylinder B40, a sliding plug C49, a spring C52, a sliding sleeve B54, a sliding plug D56, and a spring D58, wherein as shown in fig. 1 and 13, an oil cylinder a12 and a sliding sleeve a26 are sequentially installed in the housing 10 installed on the base 1 along the traveling direction of the strip 92; as shown in fig. 14, a sliding plug a15 is vertically and hermetically slid in the oil cylinder a12, a push rod a17 is installed at the lower end of the sliding plug a15, and a pinch roller a20 is rotatably matched at the lower end of the push rod a 17; a spring A18 for resetting the sliding plug A15 is nested on the push rod A17; as shown in fig. 8 and 13, the pinch roller a20 cooperates with two equal-height support rollers a93 symmetrically installed below the pinch roller a20 and spaced apart from each other in the traveling direction of the strip 92 to press the strip 92 passing through the pinch roller a with a curvature straight; as shown in fig. 15, a sliding plug B30 is vertically and hermetically slid in the sliding sleeve a26, a push rod B32 is installed at the lower end of the sliding plug B30, and a pressure wheel B34 is rotatably matched at the lower end of the push rod B32; the top in the sliding sleeve A26 is provided with a vent groove A29 communicated with the outside; a through communication groove A31 in the side wall of the sliding plug B30 is matched with an oil inlet B28 and an oil outlet B27 in the side wall of the sliding sleeve A26; a spring B35 for resetting the sliding plug B30 is nested on the push rod B32; as shown in fig. 8 and 13, the pinch roller B34 cooperates with two equal-height supporting rollers B36 which are symmetrically installed below the pinch roller B34 and are distributed at intervals along the traveling direction of the strip material 92 to judge whether the strip material 92 is extruded by the pinch roller a20 to be straight or not and adjust the downward extrusion amplitude of the pinch roller a20 on the strip material 92 through a series of transmission; as shown in fig. 13 and 14, an oil outlet a14 on the side wall of the oil cylinder a12 is communicated with an oil tank 24 arranged outside the shell 10 through an oil pipe a23 provided with a control valve 22; an oil inlet A13 at the top of the oil cylinder A12 is communicated with an oil outlet B27 on the sliding sleeve A26 through an oil pipe B61 provided with a one-way valve 25.

As shown in fig. 9 and 13, an oil cylinder B40 is installed on the outer side of the housing 10, a sliding plug C49 is hermetically slid in the oil cylinder B40, and a precompression spring C52 for restoring the sliding plug C49 is installed in the oil cylinder B40; as shown in fig. 9 and 10, an oil outlet C42 on the oil cylinder B40 is communicated with an oil inlet B28 on the sliding sleeve a26 through an oil pipe C38, and an oil inlet C41 on the oil cylinder B40 is connected with a hydraulic system through an oil pipe E60; two oil outlets D44 and two oil inlets D43 are symmetrically formed in the inner wall of the oil cylinder B40 between the sliding plug C49 and the oil outlet C42; the oil inlet D43 and the oil outlet D44 on the same side are connected through an oil pipe D53; a reset port 45 is formed in the inner wall of the oil cylinder B40 between the sliding plug C49 and the oil inlet C41; as shown in fig. 9, 10 and 12, a sliding sleeve B54 is installed at the position of the reset port 45, and a sliding plug D56 is hermetically slid in the sliding sleeve B54; the top in the sliding sleeve B54 is provided with a vent groove B55 communicated with the outside; a pre-compressed spring D58 for resetting the sliding plug D56 is arranged in the sliding sleeve B54; as shown in fig. 9 and 11, a communication groove B50 is formed in an end surface of the slide plug C49 opposite to the oil inlet D43, and the communication groove B50 communicates with a through communication groove C51 formed in a side wall of the slide plug C49.

As shown in fig. 1 and 5, the base 1 is provided with a support I91, a support a2 and a support F73; winding roller A4 is mounted on support A2, and winding roller B87 is mounted on support I91; as shown in fig. 6 and 7, an arc-shaped block a74 is mounted on the support F73 through a support G81; the L-shaped rod 75 is rotatably matched with a swing pin 76 arranged on the side surface of the support F73, and an arc-shaped block B77 is arranged at one end of the L-shaped rod 75; arcuate segment a74 and arcuate segment B77 engage ribbon 92; the end of the L-shaped rod 75, which is not provided with the arc-shaped block B77, is hinged with a connecting rod 78; a crank wheel 80 is rotatably arranged on the support F73, and a crank pin 79 arranged on the crank wheel 80 is rotatably matched with the tail end of the connecting rod 78; a bevel gear F82 is arranged on the shaft of the crank wheel 80; an electric drive module C84 is mounted on the support F73, and a bevel gear E83 meshed with the bevel gear F82 is mounted on an output shaft of the electric drive module C84; as shown in fig. 1, 4 and 5, a support H86 is arranged on the support I91, and a guide roller 85 matched with the strip material 92 is arranged on the support H86; the guide roller 85 is located between the arc block a74 and the wind roller B87.

As shown in fig. 4 and 5, the winding roller B87 is arranged on a shaft which is rotatably matched with the support I91; the electric drive module D90 is mounted on the support I91; the output shaft of the electric drive module D90 is fitted with a bevel gear G89, bevel gear G89 meshing with a bevel gear H88 mounted on the shaft of the wind-up roller B87.

As shown in fig. 1, 2 and 5, a support B3 is mounted on the support a 2; two vertically distributed clamping rollers A5 are arranged on the support B3; a bevel gear B7 is arranged on a shaft A6 on which one clamping roller A5 is arranged; an electric drive module A9 is mounted on the support B3, and a bevel gear A8 meshed with the bevel gear B7 is mounted on an output shaft of the electric drive module A9; two nip rollers a5 are located between wind roller a4 and the flattening mechanism 94; as shown in fig. 1, 3 and 5, a support E72 is mounted on a support I91, and two vertically distributed nip rollers B67 are mounted on a support E72; a bevel gear D69 is arranged on a shaft B68 on which one of the clamping rollers B67 is arranged; an electric drive module B71 is mounted on the support E72, and a bevel gear C70 meshed with the bevel gear D69 is mounted on an output shaft of the electric drive module B71; two nip rollers B67 are located between the arcuate block a74 and the flattening mechanism 94.

As shown in fig. 13, the side wall of the housing 10 is provided with a movable slot 11 through which the strip 92 passes; as shown in fig. 14, a seal ring a16 matched with the inner wall of the oil cylinder a12 is nested and mounted on the sliding plug a 15; the tail end of the push rod A17 is provided with a U-shaped seat A19, and the pressure wheel A20 is arranged in the U-shaped seat A19; one end of a spring A18 is connected with the lower end face of the oil cylinder A12, and the other end of the spring A18 is connected with a U-shaped seat A19; as shown in fig. 8 and 13, two supporting wheels a93 are mounted between two supports C21; the tail end of the push rod B32 is provided with a U-shaped seat B33, and the pinch roller B34 is arranged in the U-shaped seat B33; as shown in fig. 15, one end of the spring B35 is connected with the lower end face of the sliding sleeve a26, and the other end is connected with the U-shaped seat B33; as shown in fig. 8 and 13, two supporting wheels B36 are mounted between two supports D37; the oil cylinder A12 and the sliding sleeve A26 are arranged in the shell 10 through a fixed seat B63; as shown in fig. 9 and 13, the oil cylinder B40 is mounted on the outer side of the casing 10 through two fixing seats a 62; a limit ring A46 and a limit ring B47 which limit the sliding amplitude of the sliding plug C49 are arranged in the oil cylinder B40; one end of a spring C52 is connected with a fixed ring 48 arranged in the oil cylinder B40, and the other end is connected with the tail end of a sliding plug C49; as shown in fig. 12, the sliding plug D56 is nested with a sealing ring B57 engaged with the inner wall of the sliding sleeve B54; a limiting ring C59 for limiting the sliding amplitude of the sliding plug D56 is arranged in the sliding sleeve B54; one end of the spring D58 is connected with the end face of the sliding plug D56, and the other end is connected with the inner wall of the sliding sleeve B54.

The electric drive module a9, the electric drive module B71, the electric drive module C84 and the electric drive module D90 of the present invention are all of the prior art. The electric drive module a9, the electric drive module B71, the electric drive module C84 and the electric drive module D90 are each formed by an electric motor, a gear unit and a control unit.

The two nip rollers a5 of the present invention pull the ribbon 92 wound on the wind roller a 4. The two pinch rollers B flatten burrs that are formed on the punched strip 92 passing therebetween, facilitating better winding of the strip 92 around the wind-up roller B87.

The vent groove A29 on the sliding sleeve A26 ensures that the sliding plug B30 slides smoothly in the sliding sleeve A26, and the vent groove B55 on the sliding sleeve B54 ensures that the sliding plug D56 slides smoothly in the sliding sleeve B54.

The rotation of the winding roller A4 has certain damping effect, the rotation speed of the winding roller A4 is equal to the movement speed of the strip 92 pulled by the two pinch rollers A5, the strip 92 is ensured to be always in a tense state and not to fall off from the winding roller A4 before entering the flattening mechanism 94, and therefore the strip 92 is ensured to be smoothly and stably released from the winding roller A4.

The movement of the sliding plug D56 in the sliding sleeve B54 in the invention is beneficial to the sliding return of the sliding plug C49 in the oil cylinder B40 under the action of the spring C52.

The working process of the invention is as follows: in the initial state, the winding roller a4 has a sufficient amount of the tape 92 wound thereon. The cylinder A12 is filled with hydraulic oil above the sliding plug A15, the control valve 22 is in an open state, and the vertical distance between the pressure wheel A20 and the supporting wheel A93 is equal to the thickness of the strip 92. The sliding plug A15 is located in the middle of the cylinder A12. The sliding plug B30 is located at the bottom limit position in the sliding sleeve A26, and the communication groove A31 on the sliding plug B30 is staggered with the oil outlet B27 and the oil inlet B28 on the side wall of the sliding sleeve A26 and is not communicated with each other. The spacing between pinch roller B34 and support roller B36 is equal to the thickness of the ribbon 92. Spring A18 is in a pre-tensioned state and spring B35 is in a pre-compressed state. The sliding plug C49 seals the two oil outlets D44, and the communicating groove C51 on the sliding plug C49 is staggered and not communicated with the oil outlet D44. The sliding plug C49 is in contact with the stop collar A46, and the sliding plug C49 is spaced a distance from the stop collar B47. The spring C52 is in a pre-compressed state. The distance from the sliding plug D56 to the reset port 45 is the closest, and the sliding plug D56 contacts the stop collar C59, and the spring D58 is in a pre-compressed state. Arcuate segment a74 is separated from arcuate segment B77. The gap between the two nip rollers a5 is equal to the thickness of the ribbon 92 and the gap between the two nip rollers B67 is equal to the thickness of the ribbon 92.

When the invention is needed to punch the strip 92, the tail end of the strip 92 wound on the winding roller a4 sequentially passes through the space between the two clamping rollers a5, the movable groove 11 on the shell 10, the space between the pressing wheel and the two supporting wheels a93, the space between the pressing wheel B34 and the two supporting wheels B36, the space between the punch 66 and the punching platform 64, the space between the two clamping rollers B67, the space between the arc block a74 and the arc block B77 and the guide roller 85 wound on the winding roller B87.

The apparatus is then started, the control valve 22 is closed and the hydraulic system is switched on. The control system controls the electric drive module A9, the electric drive module B71, the electric drive module C84 and the electric drive module D90 to synchronously and intermittently operate, so that when the punch 66 punches the strip 92, the electric drive module A9, the electric drive module B71, the electric drive module C84 and the electric drive module D90 stop operating simultaneously, and when the punch 66 punches the strip 92, the electric drive module A9, the electric drive module B71, the electric drive module C84 and the electric drive module D90 operate simultaneously. Because the communication groove A31 on the sliding plug B30 is staggered and not communicated with the oil inlet B28 and the oil outlet B27 on the sliding sleeve A26, and the communication groove C51 on the sliding plug C49 is staggered and not communicated with the oil outlet D44 on the oil cylinder B40, the space between the sliding plug C49 and the sliding plug B30 is in a sealed state. Even if the hydraulic system cannot push the spool C49 to move by pressing hydraulic oil into the cylinder B40 through the oil pipe E60. The hydraulic system presses part of the hydraulic oil into the oil cylinder B40 through an oil pipe E60, pushes the sliding plug D56 to move to the limit in the sliding sleeve B54 and further compresses the spring D58 to the limit.

When the electric drive module A9, the electric drive module B71, the electric drive module C84 and the electric drive module D90 operate synchronously, the electric drive module A9 drives one clamping roller A5 to rotate actively through a bevel gear A8, a bevel gear B7 and a shaft A6, the clamp roller A5 which rotates actively drives the other clamping roller A5 to rotate in a driven mode through a strip 92 which is tightly pressed by the clamp roller A5, the rotation of the two clamping rollers A5 drives the strip 92 to be released from the winding roller A4, and the strip 92 drives the winding roller A4 to rotate in a self-adaptive mode. The electric driving module B71 drives two clamping rollers B67 through a bevel gear C70, a bevel gear D69 and a shaft B68 to squeeze and flatten burrs formed on the strip material 92 after being punched by the punch 66, and simultaneously clamps and drives the strip material 92 to move towards the winding roller B87. The electric driving module C84 drives a crank wheel 80 coaxial with the bevel gear F82 to rotate through the bevel gear E83 and the bevel gear F82, the crank wheel 80 drives an L rod 75 to swing around a swing pin 76 through a crank pin 79 and a connecting rod 78, the L rod 75 drives an arc block B77 to move back and forth to approach and separate from an arc block B77 above, and the strip 92 between the arc block A74 and the arc block B77 is intermittently extruded, so that the punched strip 92 has a certain winding radian before being wound and recovered onto the winding roller B87, the strip 92 is favorably wound on the winding roller B87 better, the winding and recovery efficiency of the winding roller B87 on the strip 92 is improved, the utilization rate of the winding roller B87 is improved, and more strip 92 is wound on the winding roller B87 as much as possible. Meanwhile, the electric driving module D90 drives the winding roller B87 coaxial with the bevel gear H88 to rotate through the bevel gear G89 and the bevel gear H88, and the winding roller winds and recovers the punched strip 92.

One run of the electric drive module a9, the electric drive module B71, the electric drive module C84, and the electric drive module D90 moves the strip 92 a distance equal to the distance between two adjacent stamping points on the strip 92. The synchronized intermittent operation of the electric drive module a9, the electric drive module B71, the electric drive module C84 and the electric drive module D90 causes the strip material 92 to stop traveling when being punched by the punch 66 and continue traveling when being punched by the punch 66, avoiding the traveling of the strip material 92 interfering with the punching of the strip material 92 by the punch 66.

As the curved ribbon 92 from wind roller a4 passes between pinch roller a20 and two support wheels a93, the upward arching of the ribbon 92 has a vertically upward force on pinch roller a 20. At the moment, the control valve 22 is closed, and the check valve 25 prohibits hydraulic oil in the oil cylinder A12 from flowing back to the sliding sleeve A26 direction through the oil pipe B61, so that the upper part of the sliding plug A15 in the oil cylinder A12 is temporarily in a closed state, the upper camber of the strip 92 cannot drive the sliding plug A15 to move through the pressure wheel A20, the U-shaped seat A19 and the push rod A17, the gap between the pressure wheel A20 and the two support wheels A93 is still the thickness of the strip 92, and the pressure wheel A20 and the two support wheels A93 which temporarily keep the gap unchanged flatten the passing strip 92 to a certain extent, so that the upper camber of the strip 92 is reduced.

When the partially flattened strip 92, which is formed by pinch roller a20 and two support rollers a93, carries a slight upward camber between pinch roller B34 and two support rollers B36, the gap between pinch roller B34 and two support rollers B36 is equal to the thickness of strip 92, so that strip 92 still has a certain camber. The upper camber on the strip 92 pushes the pressure wheel B34 to vertically move upwards for a certain distance, the pressure wheel B34 drives the sliding plug B30 to move upwards for a certain distance through the U-shaped seat B33 and the push rod B32, and the communication groove A31 on the sliding plug B30 is communicated with the oil outlet B27 and the oil inlet B28 on the sliding sleeve A26.

The operating hydraulic system continuously injects hydraulic oil into the oil cylinder B40 through the oil pipe C38 and pushes the sliding plug C49 to move, the space between the piston C and the oil inlet C41 is gradually enlarged, and the spring C52 is further compressed to store energy. The movement of the sliding plug C49 enables the communication groove C51 on the sliding plug C49 to be communicated with the oil outlet D44, and hydraulic oil in a space between the piston C and the oil inlet C41 flows into a space between the sliding plug C49 and the oil outlet C42 through the communication groove B50, the communication groove C51, the two oil outlets D44 and the two oil pipes D53. The hydraulic oil in the space between the sliding plug C49 and the oil outlet C42 flows into the oil cylinder A12 through the oil outlet C42, the oil pipe C38, the oil inlet B28, the communication groove A31 on the sliding plug B30, the oil outlet B27, the oil pipe B61 and the check valve 25 under the continuous operation pressurization of the hydraulic system. As the space between the piston C and the oil inlet C41 gradually increases, the pressure in the space between the piston C and the oil inlet C41 has a decreasing tendency, and the sliding plug D56 gradually moves a certain distance toward the initial position under the return action of the spring D58.

Along with the increase of the volume of hydraulic oil in the oil cylinder A12, the sliding plug A15 moves downwards under the pushing of the hydraulic oil, the sliding plug A15 drives the pressing wheel A20 to move synchronously through the push rod A17 and the U-shaped seat A19, the pressing wheel A20 presses the strip 92 downwards, the strip 92 with an upward arching radian is gradually sunken downwards towards the interval between the two supporting wheels A93 under the downward pressing of the pressing wheel, so that the upward arching deformation of the strip 92 is promoted, and the spring A18 is further stretched to store energy.

With the continuous operation of the strip 92, as long as the strip 92 has an upward camber after being pressed by the pressing wheel a20, the upward camber of the strip 92 still has an upward thrust on the pressing wheel B34 when passing through the pressing wheel B34, so that the communication groove a31 on the sliding plug B30 is communicated with the oil inlet B28 and the oil outlet B27 on the sliding sleeve a26, and the hydraulic system continuously injects hydraulic oil into the oil cylinder a12 through the oil port C, the oil pipe C38, the oil inlet B28, the communication groove a31 on the sliding plug B30, the oil outlet B27, the oil pipe B61 and the check valve 25, so that the sliding plug a15 drives the pressing wheel a20 to continuously press the strip 92 through a series of transmissions.

Until the upward bow of the strip material 92 passing between pinch roller A20 and the two support wheels A93 is flattened by pinch roller A20, the portion of the strip material 92 between pinch roller B34 and the two support wheels B36 is flattened and the upward push on pinch roller B34 is released. Under the reset action of the spring B35, the U-shaped seat B33 drives the pressure wheel B34, the push rod B32 and the sliding plug B30 to quickly return to the initial position relative to the sliding sleeve A26. The communication groove A31 on the sliding plug C49 is staggered again with the oil outlet B27 and the oil inlet B28 on the sliding sleeve A26 and is not communicated. The hydraulic oil in cylinder a12 is closed and the hydraulic system stops and no longer presses hydraulic oil into cylinder B40 through oil line C38 and oil inlet C41. Under the reset action of the spring C52, the sliding plug C49 is reset quickly, and the communication groove C51 on the sliding plug C49 is communicated with the oil outlet D44 on the oil cylinder B40 in a staggered mode again. The hydraulic oil between the sliding plug C49 and the oil inlet C41 drives the sliding plug D56 to slide in the sliding sleeve B54 for a certain distance under the reset pushing of the sliding plug C49, and the spring D58 is further compressed to store energy. Because the hydraulic oil in the oil cylinder A12 is in a closed space, the sliding plug A15 drives the pressing wheel A20 to keep the extrusion amplitude of the strip 92 unchanged through the push rod A17 and the U-shaped seat A19, the pressing wheel A20 keeps the state of downwards extruding the upper arc degree of the strip 92 unchanged, and the strip 92 which is released from the winding roller A4 and has a certain arc degree range is extruded by the pressing wheel A20 to be straight, so that better punching is performed.

As the strip material 92 is gradually released from the winding roller a4, the winding radian of the strip material 92 increases along with the reduction of the winding diameter, and the upper camber of the strip material 92 passing through the pinch roller a20 can not be pressed straight under the extrusion of the pinch roller a20 with the position kept unchanged, but moves between the pinch roller B34 and the two supporting wheels B36 in a state of small upper camber; the belt material 92 with a certain upward arching radian enables the pinch roller A20 to move vertically upwards again, the pinch roller A20 drives the sliding plug B30 to move synchronously through a series of transmissions, the communication groove A31 on the sliding plug B30 is communicated with the oil inlet B28 and the oil outlet B27 on the sliding sleeve A26, the control system controls the hydraulic system operator to drive the pinch roller A20 to move vertically downwards for a certain amplitude through a series of transmissions again, the spring A18 is further stretched to store energy, the pinch roller A20 further presses the belt material 92 downwards until the belt material 92 is pressed flatly by the adjusted pinch roller A20 again and the upward pushing on the pinch roller B34 is relieved, the control system controls the hydraulic system to stop running, the sliding plug B30 is quickly reset under the reset action of the spring B35 and breaks the communication between the communication groove A31 and the oil inlet B28 and the oil outlet B27, so that the pinch roller A20 further moves downwards for a certain amplitude and keeps the belt material 92 in the state to be pressed, the method ensures that the strip material 92 with a certain range of upward arching radian is extruded and straightened by the pressing wheel A20, ensures that the strip material 92 reaching the position of the punch 66 is continuously in a straight state, ensures the punching quality of the punch 66 on the strip material 92, improves the punching efficiency and improves the utilization rate of the strip material 92.

After the strip 92 is stamped from the wind roller a4, the control system stops the operation of the electric drive module a9, the electric drive module B71, the electric drive module C84, and the electric drive module D90, and the hydraulic system stops. Control valve 22 is then opened to allow communication between the interior of cylinder a12 and the tank. Under the reset action of a spring A18, a U-shaped seat A19 drives a pressure wheel A20, a push rod A17 and a sliding plug A15 to reset quickly, the sliding plug A15 pushes hydraulic oil in an oil cylinder A12 to enter an oil tank 24 through an oil pipe A23 and a control valve 22, and the hydraulic oil in the oil cylinder A12 restores to an initial state quantity. And then the control valve 22 is closed.

When the communication groove A31 in the sliding plug B30 is communicated with the oil inlet B28 and the oil outlet B27 in the sliding sleeve A26 each time the sliding plug B30 moves upwards due to the fact that the strip 92 has the upward camber, the control system controls the hydraulic system to operate to inject hydraulic oil into the oil cylinder A12, and therefore the pressing wheel A20 presses the strip 92 downwards. Whenever the upward camber of the strip 92 is flattened by the pressure roller A20 and then the upward pushing support of the pressure roller B34 is lost, so that the communication groove A31 on the sliding plug B30 is staggered with the oil inlet B28 and the oil outlet B27 on the sliding sleeve A26 and is not communicated with each other, the control system controls the hydraulic system to stop running again.

In conclusion, the beneficial effects of the invention are as follows: according to the invention, the flat mechanism 94 interacts with the strip 92 with the radian, which is released from the winding roller A4, so that the strip 92 with a certain winding radian, which is released from the winding roller A4, becomes flat and spread, and the punch 66 is favorable for effectively punching the strip 92 passing through the punching platform 64, thereby improving the punching quality of the strip 92 by the punch 66 and the punching efficiency.

The flattening mechanism 94 of the present invention can continuously adjust the downward pressing amplitude of the pressing roller a20 according to the increasing upper camber of the winding diameter of the strip 92 on the winding roller a4, so as to continuously flatten the strip 92, ensure that the strip 92 reaching the punch 66 is flat, and improve the punching quality of the strip 92.

According to the invention, the interaction of the arc blocks A74 and the arc blocks B77 intermittently bends and presses the punched strip 92 in a certain radian, so that the strip 92 is bent in a certain radian after being punched, the strip is conveniently and smoothly wound on the winding roller B87, meanwhile, the quantity of the strip 92 wound on the winding roller B87 is increased, and the utilization rate of the winding roller and the winding recovery efficiency of the strip 92 by the winding roller are improved.

In addition, according to the invention, before winding and recovering the punched strip material 92, the burrs punched by the punch 66 on the strip material 92 are flattened, so that the strip material 92 is wound on the winding roller B87 more tightly, and the efficiency of winding and recovering the strip material 92 by the winding roller is improved.

Claims

1. An apparatus for a stamping die, characterized by: the device comprises a base, a winding roller A, a flattening mechanism, a stamping platform, a supporting arm, a punch, a winding roller B and an electric drive module D, wherein a strip is wound on the winding roller A arranged on one side of the base; a flattening mechanism for flattening the strip with radian is arranged on the base; a stamping platform is arranged on the base, a supporting arm is arranged on the stamping platform, and a punch is arranged on the supporting arm; the punch is matched with the stamping platform to stamp the strip which is extruded to be flat by the flattening mechanism; the other side of the base is provided with a winding roller B driven to rotate by an electric driving module D, and the winding roller B winds and recovers the punched strip; a structure for flattening burrs formed after the punching is finished and pressing the strip material with the burrs to form a certain radian so as to facilitate the winding roller B to wind and recover the strip material is arranged between the winding roller B and the punching platform;

the flattening mechanism comprises a shell, an oil cylinder A, a sliding plug A, a push rod A, a spring A, a pinch roller A, a supporting wheel A, a control valve, an oil tank, a one-way valve, a sliding sleeve A, a sliding plug B, a push rod B, a pinch roller B, a spring B, a supporting wheel B, an oil cylinder B, a sliding plug C, a spring C, a sliding sleeve B, a sliding plug D and a spring D, wherein the oil cylinder A and the sliding sleeve A are sequentially installed in the shell installed on the base along the advancing direction of a strip; a sliding plug A is vertically and hermetically slid in the oil cylinder A, a push rod A is mounted at the lower end of the sliding plug A, and a pressing wheel A is rotatably matched at the lower end of the push rod A; a spring A for resetting the sliding plug A is nested on the push rod A; the pinch roller A is matched with two equal-height supporting wheels A which are symmetrically arranged below the pinch roller A and are distributed at intervals along the advancing direction of the strip material so as to extrude the strip material with radian passing through the pinch roller A to be straight; a sliding plug B is vertically and hermetically slid in the sliding sleeve A, a push rod B is installed at the lower end of the sliding plug B, and a pressing wheel B is rotatably matched at the lower end of the push rod B; the top in the sliding sleeve A is provided with a vent groove A communicated with the outside; a through communication groove A on the side wall of the sliding plug B is matched with an oil inlet B and an oil outlet B on the side wall of the sliding sleeve A; a spring B for resetting the sliding plug B is nested on the push rod B; the pinch roller B is matched with two equal-height supporting wheels B which are symmetrically arranged below the pinch roller B and are distributed at intervals along the advancing direction of the strip material so as to judge whether the strip material is extruded by the pinch roller A to be straight or not and adjust the downward extrusion amplitude of the pinch roller A to the strip material through a series of transmission; an oil outlet A on the side wall of the oil cylinder A is communicated with an oil tank arranged on the outer side of the shell through an oil pipe A provided with a control valve; an oil inlet A at the top of the oil cylinder A is communicated with an oil outlet B on the sliding sleeve A through an oil pipe B provided with a one-way valve;

an oil cylinder B is arranged on the outer side of the shell, a sliding plug C is arranged in the oil cylinder B in a sealing sliding mode, and a pre-compression spring C for resetting the sliding plug C is arranged in the oil cylinder B; an oil outlet C on the oil cylinder B is communicated with an oil inlet B on the sliding sleeve A through an oil pipe C, and an oil inlet C on the oil cylinder B is connected with a hydraulic system through an oil pipe E; two oil outlets D and two oil inlets D are symmetrically formed in the inner wall of the oil cylinder B between the sliding plug C and the oil outlet C; the oil inlet D and the oil outlet D on the same side are connected through an oil pipe D; a reset port is formed in the inner wall of the oil cylinder B between the sliding plug C and the oil inlet C; a sliding sleeve B is arranged at the reset port, and a sliding plug D is arranged in the sliding sleeve B in a sealing sliding manner; the top in the sliding sleeve B is provided with a vent groove B communicated with the outside; a pre-compression spring D for resetting the sliding plug D is arranged in the sliding sleeve B; a communicating groove B is formed in the end face, opposite to the oil inlet D, of the sliding plug C and communicated with a communicating groove C formed in the side wall of the sliding plug C;

the base is provided with a support I, a support A and a support F; the winding roller A is arranged on the support A, and the winding roller B is arranged on the support I; the support F is provided with an arc-shaped block A through a support G; the L rod is in rotating fit with a swing pin arranged on the side surface of the support F, and one end of the L rod is provided with an arc-shaped block B; the arc blocks A and B are matched with the strip; one end of the L rod, which is not provided with the arc block B, is hinged with a connecting rod; a crank wheel is rotatably arranged on the support F, and a crank pin arranged on the crank wheel is rotatably matched with the tail end of the connecting rod; a shaft on which the crank wheel is arranged is provided with a bevel gear F; an electric driving module C is installed on the support F, and a bevel gear E meshed with the bevel gear F is installed on an output shaft of the electric driving module C; a support H is arranged on the support I, and a guide roller matched with the strip is arranged on the support H; the guide roller is positioned between the arc block A and the winding roller B;

the side wall of the shell is provided with a movable groove for penetrating through a belt material; a sealing ring A matched with the inner wall of the oil cylinder A is nested on the sliding plug A; the tail end of the push rod A is provided with a U-shaped seat A, and the pressing wheel A is arranged in the U-shaped seat A; one end of the spring A is connected with the lower end face of the oil cylinder A, and the other end of the spring A is connected with the U-shaped seat A; the two supporting wheels A are arranged between the two supports C; the tail end of the push rod B is provided with a U-shaped seat B, and the pressing wheel B is arranged in the U-shaped seat B; one end of the spring B is connected with the lower end face of the sliding sleeve A, and the other end of the spring B is connected with the U-shaped seat B; the two supporting wheels B are arranged between the two supports D; the oil cylinder A and the sliding sleeve A are arranged in the shell through a fixed seat B; the oil cylinder B is arranged on the outer side of the shell through two fixed seats A; a limiting ring A and a limiting ring B for limiting the sliding amplitude of the sliding plug C are arranged in the oil cylinder B; one end of the spring C is connected with a fixed ring arranged in the oil cylinder B, and the other end of the spring C is connected with the tail end of the sliding plug C; a sealing ring B matched with the inner wall of the sliding sleeve B is nested on the sliding plug D; a limiting ring C for limiting the sliding amplitude of the sliding plug D is arranged in the sliding sleeve B; one end of the spring D is connected with the end face of the sliding plug D, and the other end of the spring D is connected with the inner wall of the sliding sleeve B.

2. An apparatus for a stamping die as defined in claim 1, wherein: the shaft of the winding roller B is in rotating fit with the support I; the electric drive module D is arranged on the support I; the output shaft of the electric drive module D is provided with a bevel gear G, and the bevel gear G is meshed with a bevel gear H arranged on the shaft of the winding roller B.

3. An apparatus for a stamping die as defined in claim 1, wherein: the support A is provided with a support B; two vertically distributed clamping rollers A are arranged on the support B; a bevel gear B is arranged on a shaft A where one of the clamping rollers A is arranged; an electric driving module A is installed on the support B, and a bevel gear A meshed with the bevel gear B is installed on an output shaft of the electric driving module A; the two clamping rollers A are positioned between the winding roller A and the flattening mechanism; a support E is arranged on the support I, and two vertically distributed clamping rollers B are arranged on the support E; a bevel gear D is arranged on a shaft B where one of the clamping rollers B is arranged; an electric driving module B is installed on the support E, and a bevel gear C meshed with the bevel gear D is installed on an output shaft of the electric driving module B; the two clamping rollers B are positioned between the arc-shaped block A and the flattening mechanism.