Continuous stamping definite-number cutting-off die

Abstract

The utility model relates to the technical field of stamping dies, in particular to a continuous stamping definite number cutting die which comprises an upper die module and a lower die module, and the lower die module comprises a lower die plate for a material belt to advance in a guiding mode. A punching mechanism and a punching mechanism are arranged on the upper die module at equal intervals in the advancing direction of a material belt, the upper die module is further provided with a longitudinally-moving cutting knife and a fixed-number air cylinder driving the cutting knife to longitudinally move, and a sliding connection structure is arranged between the fixed-number air cylinder and the cutting knife. A material belt needing to be punched is placed into the lower die plate, and the material belt moves forwards along the lower die plate and can pass through the multiple punching mechanisms and the multiple punching mechanisms. The upper die module is further provided with a longitudinally-moving cutting knife and a fixed-number air cylinder driving the cutting knife to longitudinally move, and a sliding connection structure is arranged between the fixed-number air cylinder and the cutting knife. After punching and punching are completed, the fixed-number air cylinder drives the cutting knife to press downwards, the material belt is cut off, manufacturing of a single product or manufacturing of a plurality of products can be achieved through the fixed-number air cylinder, adjustment is convenient, and the requirements of customers are met.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a continuous stamping fixed-number cutting die. Background Technology

[0002] Progressive dies refer to cold stamping dies that use strip-shaped raw materials in a single stamping stroke, and complete multiple stamping processes simultaneously at several different stations on a single die. After each stamping stroke, the strip moves at a fixed distance until the product is finished. This process can complete both blanking and forming processes. In the use of existing progressive dies, the strip needs to be packaged in coils. Therefore, in actual production, the continuous stamped parts need to be cut to a fixed length, or blanking operations need to be performed at predetermined distances on the strip or stamped parts.

[0003] The stamped strip needs to be cut. Existing cutting methods are all equidistant cutting, meaning that each product is cut to the same length. This cannot meet the needs when some products require different lengths. Utility Model Content

[0004] The purpose of this invention is to provide a continuous stamping fixed-number cutting die to address the shortcomings of existing technologies.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A continuous stamping fixed-number cutting die includes an upper die assembly and a lower die assembly. The lower die assembly includes a lower template for guiding the feed strip forward. The upper die assembly includes an upper clamping plate, a stop plate, and a stripper plate arranged sequentially from top to bottom. The upper die assembly has multiple punching mechanisms and punching mechanisms equidistantly arranged along the feed strip's forward direction. The punching mechanism includes a punching die mounted on the upper clamping plate and top punching guide holes formed on the stop plate and the stripper plate, respectively. The punching mechanism includes a punching die mounted on the upper clamping plate and top punching guide holes formed on the stop plate and the stripper plate, respectively. The upper die assembly is also equipped with a longitudinally movable cutting blade and a fixed-number cylinder that drives the cutting blade to move longitudinally. A sliding connection structure is provided between the fixed-number cylinder and the cutting blade.

[0007] Furthermore: the lower die module also includes a lower pad plate located at the bottom of the lower die plate, and a lower die base is installed at the bottom of the lower pad plate; the lower die plate has multiple bottom punching guide holes coaxially aligned with the top punching guide holes and bottom punching guide holes coaxially aligned with the top punching guide holes.

[0008] Furthermore: an elastic support structure is provided between the lower template and the lower mold base. The elastic support structure includes elastic movable holes formed in the lower template and the lower mold base. A bottom compression spring is installed in the elastic movable hole, and a guide sleeve is installed on the top of the bottom compression spring.

[0009] Furthermore, the upper mold module also includes an upper cover plate, an upper mold base, and an upper pad plate arranged sequentially from top to bottom. The upper pad plate is located on top of the upper clamping plate, and the upper cover plate, on which the upper mold base is installed, can move longitudinally closer to or further away from the lower mold module.

[0010] Furthermore: the upper mold base is formed with a first guide hole, the upper pad is formed with a second guide hole, and the upper cover plate is equipped with a guide rod that is coaxially inserted into the first guide hole and the second guide hole and connected to the stripper plate.

[0011] Furthermore: the guide rod is fitted with a top compression spring.

[0012] Furthermore: the sliding connection structure includes a transverse sliding groove formed transversely on the upper pad, a transverse sliding block slidably installed in the transverse sliding groove, the transverse sliding block being connected to the drive end of the fixed cylinder, and the upper clamping plate, the stop plate and the stripper plate being coaxially formed with blade sliding grooves for the longitudinal sliding of the cutting blade, the transverse sliding block being able to drive the cutting blade to move longitudinally along the blade sliding groove.

[0013] Furthermore: the bottom of the horizontal sliding block is formed with a first inclined surface, and the top of the cutting blade is formed with a second inclined surface that slides and engages with the first inclined surface.

[0014] Furthermore: the stop plate is provided with an elastic support component that drives the cutting blade to rise elastically. The elastic support component includes an elastic support block, and the elastic support block is equipped with a longitudinally arranged blade compression spring, which is connected to the cutting blade.

[0015] Furthermore: the cutting blade is formed with a spring groove, and the top of the blade compression spring is installed in the spring groove.

[0016] The beneficial effects of this utility model are as follows: The strip to be stamped is placed into the lower die, and the strip moves along the lower die, passing through multiple punching and piercing mechanisms. During punching, the punching die presses down along the punching guide hole and cooperates with the strip at the top of the lower die to achieve punching; during cutting, the cutting die presses down along the cutting guide hole and cooperates with the strip at the top of the lower die to achieve cutting; the upper die assembly is also equipped with a longitudinally movable cutting blade and a fixed-number cylinder that drives the cutting blade to move longitudinally, and a sliding connection structure is provided between the fixed-number cylinder and the cutting blade; after the punching and piercing are completed, the fixed-number cylinder drives the cutting blade to press down and cut the strip. The fixed-number cylinder can be used to produce a single product or multiple products, and the adjustment is convenient to meet customer needs. Attached Figure Description

[0017] Figure 1 A front sectional view of the cut mold.

[0018] Figure 2 This is a cross-sectional view of the upper mold module.

[0019] Figure 3This is a cross-sectional view of the lower mold module.

[0020] Figure 4 This is a partial cross-sectional view of the upper mold module.

[0021] The reference numerals in the figures include:

[0022] 1-Upper mold module,

[0023] 11-Upper cover plate, 12-Upper mold base, 13-Upper pad plate, 14-Upper clamping plate, 15-Stop plate, 16-Stripping plate,

[0024] 2-Punching mechanism

[0025] 20-Punching mechanism, 21-Punching die, 22-Top punching guide hole, 23-Punching die

[0026] 24-Top punching guide hole, 25-First guide hole, 26-Second guide hole, 27-Guide rod,

[0027] 28-Top compression spring,

[0028] 3-Lower mold module,

[0029] 31-Lower template, 32-Lower backing plate, 33-Lower die base, 34-Bottom punching guide hole,

[0030] 35-Bottom punched guide hole, 36-Elastic movable hole, 37-Bottom compression spring, 38-Guide sleeve,

[0031] 4-Sliding connection structure

[0032] 41-Constant cylinder, 42-Transverse sliding groove, 43-Transverse sliding block, 44-First inclined surface,

[0033] 45-Second inclined plane, 46-Cutting blade, 47-Blade sliding groove, 48-Elastic support block,

[0034] 49 - Blade block compression spring, 50 - Spring groove. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings.

[0036] like Figure 1-4As shown, the continuous stamping fixed-number cutting die includes an upper die assembly 1 and a lower die assembly 3. The lower die assembly 3 includes a lower template 31 for guiding the feed belt forward. The upper die assembly 1 includes an upper clamping plate 14, a stop plate 15, and a stripper plate 16 arranged sequentially from top to bottom. The upper die assembly 1 has multiple punching mechanisms 2 and punching mechanisms 20 equidistantly arranged along the feed belt forward direction. The punching mechanism 2 includes a punching die 21 installed on the upper clamping plate 14 and top punching guide holes 22 formed on the stop plate 15 and the stripper plate 16, respectively. The punching mechanism 20 includes a punching die 23 installed on the upper clamping plate 14 and top punching guide holes 24 formed on the stop plate 15 and the stripper plate 16, respectively.

[0037] The strip to be stamped is placed into the lower die 31. The strip moves forward along the lower die 31 at equal intervals, passing through multiple punching mechanisms 20 and punching mechanisms 2. During punching, the punching die 21 presses down along the top punching guide hole 22 and cooperates with the strip at the top of the lower die 31 to achieve punching. During cutting, the cutting die 23 presses down along the top cutting guide hole 24 and cooperates with the strip at the top of the lower die 31 to achieve cutting.

[0038] The upper die assembly 1 also includes an upper cover plate 11, an upper die base 12, and an upper pad plate 13 arranged sequentially from top to bottom. The upper pad plate 13 is located on top of the upper clamping plate 14. The upper cover plate 11, on which the upper die base 12 is mounted, can move longitudinally closer to or away from the lower die assembly 3. Driven by a hydraulic cylinder, the upper die assembly 1 can be moved longitudinally closer to or away from the lower die assembly 3 to achieve punching, piercing, and cutting.

[0039] The upper mold base 12 is formed with a first guide hole 25, the upper pad plate 13 is formed with a second guide hole 26, and the upper cover plate 11 is equipped with a guide rod 27 that is coaxially inserted into the first guide hole 25 and the second guide hole 26 and connected to the stripper plate 16; the guide rod 27 is fitted with a top compression spring 28; before pressing down, under the drive of the compression spring, there is a gap between the stop plate 15 and the upper clamping plate 14. When pressing down, the stripper plate 16 first abuts against the strip, and then continues to press down. Under the buffering effect of the compression spring, the punching die 23 presses down along the top punching guide hole 24, and at the same time the punching die 21 presses down along the top punching guide hole 22, so as to realize the punching and punching of the strip.

[0040] The lower die assembly 3 also includes a lower backing plate 32 located at the bottom of the lower template 31, and a lower die base 33 is installed at the bottom of the lower backing plate 32. The lower template 31 has multiple bottom punching guide holes 34 that are coaxially aligned with the top punching guide holes 22 and bottom punching guide holes 35 that are coaxially aligned with the top punching guide holes 24. During punching and punching, the bottom punching guide holes 34 and bottom punching guide holes 35 of the lower die assembly 3 can guide the punching die 21 and the punching die 23 into the lower die assembly 3, respectively, to prevent damage to the lower die assembly 3.

[0041] Furthermore, an elastic support structure is provided between the lower template 31 and the lower die base 33. The elastic support structure includes an elastic movable hole 36 formed in the lower template 31 and the lower die base 33. A bottom compression spring 37 is installed in the elastic movable hole 36. A guide sleeve 38 is installed on the top of the bottom compression spring 37. The top of the guide sleeve 38 elastically abuts against the bottom surface of the strip. When punching, when one of the punching dies 21 is pressed down, the strip is punched and then cooperates with the guide sleeve 38. The guide sleeve 38 can elastically support the punching die 21 and reduce resonance.

[0042] The upper mold module 1 is also equipped with a longitudinally movable cutting blade 46 and a fixed cylinder 41 that drives the cutting blade 46 to move longitudinally. A sliding connection structure 4 is provided between the fixed cylinder 41 and the cutting blade 46. After punching and punching are completed, the fixed cylinder 41 drives the cutting blade 46 to press down and cut the material strip. The fixed cylinder 41 can be used to make a single product or multiple products. The adjustment is convenient to meet customer needs.

[0043] Specifically, the sliding connection structure 4 includes a transverse sliding groove 42 formed laterally on the upper pad 13. A transverse sliding block 43 is slidably mounted on the transverse sliding groove 42. The transverse sliding block 43 is connected to the drive end of the fixed-number cylinder 41. The upper clamping plate 14, the stop plate 15, and the stripper plate 16 are each coaxially formed with a blade sliding groove 47 for the longitudinal sliding of the cutting blade 46. The transverse sliding block 43 can drive the cutting blade 46 to move longitudinally along the blade sliding groove 47. A first inclined surface 44 is formed at the bottom of the transverse sliding block 43, and a second inclined surface 45 is formed at the top of the cutting blade 46 that slides in cooperation with the first inclined surface 44. The fixed-number cylinder 41 is horizontally mounted at the bottom of the upper mold base 12. The drive end of the fixed-number cylinder 41 is connected to the horizontal sliding block 43, so that the horizontal sliding block 43 moves inward along the horizontal sliding groove 42. The first inclined surface 44 at the bottom of the horizontal sliding block 43 slides and engages with the second inclined surface 45 at the top of the cutting blade 46, thereby driving the cutting blade 46 to move longitudinally along the blade sliding groove 47, approaching the lower mold assembly 3, and cutting the material strip.

[0044] Furthermore, the stop plate 15 is provided with an elastic support member that drives the cutting blade 46 to rise elastically. The elastic support member includes an elastic support block 48, on which a longitudinally arranged blade compression spring 49 is mounted. The blade compression spring 49 is connected to the cutting blade 46. The cutting blade 46 is formed with a spring groove 50, and the top of the blade compression spring 49 is mounted in the spring groove 50. In this embodiment, when the fixed cylinder 41 is not extended, the cutting blade 46 will spring up along the blade sliding groove 47 under the elastic action of the blade compression spring 49. When cutting is required, when the upper mold assembly 1 approaches the lower mold assembly 3, the fixed cylinder 41 works simultaneously, driving the cutting blade 46 to press down through the sliding connection structure 4, cutting the product after punching and punching.

[0045] It should be noted that the cutting blade 46 is driven by the fixed-number cylinder 41 to perform cutting. When it is necessary to cut one product, that is, the length of one product, the fixed-number cylinder 41 works in conjunction with the upper mold assembly 1 to cut simultaneously. If it is necessary to cut the length of two products, the fixed-number cylinder 41 extends to perform cutting motion after the upper mold assembly 1 is pressed down once. Thus, the fixed-number cylinder 41 can be used to produce a single product or multiple products, and the adjustment is convenient to meet customer needs.

[0046] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0047] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A continuous punching and fixed number cutting die, comprising an upper die set and a lower die set, characterized in that: the lower die set comprises a lower die plate guiding the feeding of a material belt; the upper die set comprises, from top to bottom, an upper clamping plate, a stop plate and a stripping plate, and the upper die set is provided with a plurality of punching mechanisms and cutting mechanisms equidistantly arranged along the feeding direction of the material belt, the punching mechanisms comprising punching dies mounted on the upper clamping plate and top punching guide holes formed in the stop plate and the stripping plate respectively, and the cutting mechanisms comprising cutting dies mounted on the upper clamping plate and top cutting guide holes formed in the stop plate and the stripping plate respectively; the upper die set is further provided with a longitudinally movable cutting knife and a fixed number cylinder driving the longitudinal movement of the cutting knife, and a sliding connection structure is arranged between the fixed number cylinder and the cutting knife. The lower die set further comprises a lower base plate arranged at the bottom of the lower die plate, and the lower base plate is provided with a lower die seat; the lower die plate is provided with a plurality of bottom punching guide holes coaxially aligned with the top punching guide holes and a plurality of bottom cutting guide holes coaxially aligned with the top cutting guide holes. A resilient support structure is arranged between the lower die plate and the lower base plate, and the resilient support structure comprises resilient movable holes formed in the lower die plate and the lower base plate, a bottom compression spring mounted in the resilient movable hole, and a guide sleeve mounted at the top of the bottom compression spring.

2. The continuous punch fixed number of cut-off die according to claim 1, characterized by: The upper die set further comprises, from top to bottom, an upper cover plate, an upper die seat and an upper base plate, wherein the upper base plate is arranged at the top of the upper clamping plate, and the upper cover plate mounted with the upper die seat can move longitudinally towards or away from the lower die set.

3. The continuous punch fixed number of cut-off die according to claim 2, characterized by: The upper die seat is formed with a first guide hole, the upper base plate is formed with a second guide hole, and the upper cover plate is mounted with a guide rod coaxially inserted into the first guide hole and the second guide hole and connected with the stripping plate.

4. The continuous punch fixed number of cut-off die according to claim 3, characterized by: The guide rod is sleeved with a top compression spring.

5. The continuous punch fixed number of cut-off die according to claim 4, characterized by: The sliding connection structure comprises a transverse sliding groove transversely formed in the upper base plate, a transverse sliding block slidingly mounted in the transverse sliding groove, and a driving end of the fixed number cylinder connected with the transverse sliding block; the upper clamping plate, the stop plate and the stripping plate are coaxially formed with knife sliding grooves for the longitudinal sliding of the cutting knife respectively, and the transverse sliding block can drive the cutting knife to move longitudinally along the knife sliding grooves.

6. The continuous punch fixed number of cut-off die according to claim 5, characterized by: The bottom of the transverse sliding block is formed with a first inclined surface, and the top of the cutting knife is formed with a second inclined surface slidingly matched with the first inclined surface.

7. The continuous punch fixed number of cut-off die according to claim 6, characterized by: The stop plate is provided with a resilient support member driving the resilient lifting of the cutting knife, and the resilient support member comprises a resilient support block mounted with a longitudinally arranged knife block compression spring connected with the cutting knife.

8. The progressive die blanking and parting die according to claim 7, characterized in that: The cutting knife is formed with a spring groove, and the top of the knife block compression spring is mounted in the spring groove.

9. The progressive die blanking and parting die according to claim 8, wherein: ​ 10. The progressive die blanking and parting die according to claim 9, wherein: ​

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