CN212884389U

CN212884389U - Structure for realizing burr-free cutting of strip points in progressive die

Info

Publication number: CN212884389U
Application number: CN202021435175.2U
Authority: CN
Inventors: 陈蒙恩; 彭德英; 方泰
Original assignee: Guangdong Yiming Mould Technology Co ltd
Current assignee: Guangdong Yiming Mould Technology Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-04-06
Anticipated expiration: 2030-07-20

Abstract

The utility model belongs to the technical field of the mould technique that upgrades and specifically relates to indicate a realize taking material point structure that no burr cut in mould upgrades, including upper die base, die holder, first die cavity, guide pillar, first protruding mold core, thimble, elasticity reset, guide pin bushing, second die cavity and second protruding mold core, the thimble stretches to first die cavity, and the top of first protruding mold core stretches to the top of die holder suddenly, and the bottom of second protruding mold core stretches to the bottom of die holder, and second protruding mold core can stretch to the second die cavity suddenly. The utility model discloses the step area that produces when can producing normal blanking has overcome the burr problem that present mould that upgrades can't press the burr and produce at the last material point that cuts off the area material, has saved the cost and the time of a large amount of burring, has simplified the process steps of processing production, has avoided polishing the trace of bringing because of needs, has improved the quality of product, has improved the efficiency of production.

Description

Structure for realizing burr-free cutting of strip points in progressive die

Technical Field

The utility model belongs to the technical field of the mould technique that upgrades and specifically relates to indicate a structure that realizes taking material point burr-free to cut in upgrading the mould.

Background

At present, the problem of burrs generated due to the fact that the material points of the belt material punched in the last step of the existing progressive die cannot be subjected to burr pressing cannot meet the requirement of the product and the simultaneous processing of a manufacturing process, multiple processing steps are needed, the size and the precision of the product are affected by the multiple step replacement processing, and the phenomena of low production efficiency, high labor cost and high labor intensity of operators exist. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a realize taking the structure that material point no burr cut in upgrading the mould.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a structure for realizing burr-free cutting of a strip point in a progressive die comprises an upper die base, a lower die base located below the upper die base, a first female die cavity arranged on the upper die base, a guide pillar arranged on the upper die base, a first male die core arranged on the lower die base, a thimble arranged on the upper die base in a lifting mode, an elastic reset piece arranged on the upper die base and used for driving the thimble to reset, a guide sleeve embedded in the lower die base and connected with the guide pillar in a sliding mode, a second female die cavity arranged on the lower die base and a second male die core arranged on the upper die base, wherein the thimble protrudes into the first female die cavity, the top of the first male die core protrudes to the top of the lower die base, the bottom of the second male die core protrudes to the bottom of the upper die base, and the second male die core can protrude into the second female die.

Furthermore, the top of the upper die base is connected with an upper connecting assembly, and the bottom of the lower die base is connected with a lower connecting assembly.

Further, go up coupling assembling and include from last upper bracket and the upper foot plate that fills up that down connects gradually, it has the elasticity roof to fill up sole built-in, the elasticity roof is connected with the upper die base via the pin, it contradicts with the upper die base to fill up the sole on.

Further, the upper die base comprises an upper die plate, an upper base plate, an upper clamping plate, a stop plate and a stripper plate which are sequentially connected from top to bottom, the first female die cavity is arranged on the stripper plate, and the second male die core extends out of the stripper plate.

Further, lower coupling assembling includes from down bottom to top connected gradually bottom plate and lower bolster sole, the lower bolster sole is connected with the die holder.

Furthermore, the lower die base comprises a connecting plate, a lower backing plate and a lower die plate which are sequentially connected from bottom to top, and the first male die core is arranged on the lower die plate and protrudes out of the top of the lower die plate.

Furthermore, the lower template goes up and down to be provided with the kicking block and be used for the spacing stopper of kicking block, the kicking block cover is located outside the first convex mould core, be provided with the elastic component that is used for driving the kicking block to reset in connecting plate and the lower bolster.

Further, the elastic piece and the elastic reset piece are both springs.

Further, a negative knife edge gap is formed between the first male die core and the first female die cavity.

The utility model has the advantages that: the utility model discloses earlier through first convex mould core and the cooperation of first die cavity with the material point position at the area material form ascending step of bending, rethread second convex mould core and the cooperation of second die cavity bend the position of step with blanking downwards, until accomplishing cutting process, the pedal foot area that produces when this processing mode can produce normal blanking, overcome the burr problem that the current mould that upgrades produces at the unable burr of pressing of the material point that cuts off the area material at last step, the cost and the time of a large amount of artifical burring or machine burring have been saved, the process steps of processing production have been simplified, the intensity of labour of production has been reduced, the trace of polishing brought because of need polishing has been avoided, the quality of product has been improved, the efficiency of production has been improved, the demand of customer to the product has been satisfied.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a cross-sectional view at a in fig. 1.

Fig. 3 is a cross-sectional view at B in fig. 1.

Description of reference numerals:

1. an upper die holder; 2. a lower die holder; 3. a first cavity; 4. a guide post; 5. a first male mold core; 6. a thimble; 7. an elastic reset member; 8. a guide sleeve; 9. a second cavity; 10. a second male mold core; 11. an upper connection assembly; 12. a lower connecting assembly; 13. an upper supporting plate; 14. an upper foot pad plate; 15. an elastic top plate; 16. beating a rod; 17. mounting a template; 18. an upper base plate; 19. an upper splint; 20. a stopper plate; 21. a material removing plate; 22. a connecting plate; 23. a lower base plate; 24. a lower template; 25. floating blocks; 26. a limiting block; 27. an elastic member; 28. a lower supporting plate; 29. a lower foot pad; 30. locking pieces with equal height.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 3, the utility model provides a structure for realizing burr-free cutting of a strip point in a progressive die, which comprises an upper die holder 1, a lower die holder 2 positioned below the upper die holder 1, a first female die cavity 3 arranged on the upper die holder 1, a guide post 4 arranged on the upper die holder 1, a first male die core 5 arranged on the lower die holder 2, an ejector pin 6 arranged on the upper die holder 1 in a lifting way, an elastic reset piece 7 arranged on the upper die holder 1 and used for driving the ejector pin 6 to reset, a guide sleeve 8 embedded in the lower die holder 2 and connected with the guide post 4 in a sliding way, a second female die cavity 9 arranged on the lower die holder 2 and a second male die core 10 arranged on the upper die holder 1, the thimble 6 extends into the first concave die cavity 3, the top of the first convex die core 5 extends out of the top of the lower die base 2, the bottom of the second male mold core 10 protrudes out of the bottom of the upper mold base 1, and the second male mold core 10 can protrude into the second female mold cavity 9.

When the strip material bending device is in actual use, strip materials with material points sequentially move in the progressive die along the processing direction, along with the movement of the strip materials, each material point on the strip materials sequentially moves to the positions of the first male die core 5 and the second male die core 10, when the material points at two different positions on the strip materials are respectively positioned at the positions of the first male die core 5 and the second male die core 10, namely the material point to be preliminarily bent on the strip materials is positioned at the position of the first male die core 5, and the material point after the preliminary bending on the strip materials is positioned at the position of the second male die core 10, the upper die base 1 and the lower die base 2 are matched, the material point on the strip materials is bent towards the inside of the first female die cavity 3 by the first male die core 5, so that an upward bending step is formed at the material point of the strip materials, the back of the strip materials forms a foot strip, at the moment, the elastic resetting piece 7 is compressed, the ejector pin 6 moves upwards, and simultaneously the second male die core 10 bends the material point with the bending step towards the inside of the second female, so that the front surface of the belt material also forms a pedal belt; after the upper die base 1 and the lower die base 2 are opened, the ejector pins 6 are reset downwards under the action of resilience force of the elastic reset pieces 7, and the ejector pins 6 which move downwards abut against the belt materials, so that the belt materials are demolded conveniently, and the belt materials are moved conveniently. Through the sliding fit of the guide post 4 and the guide sleeve 8, the stability of opening or closing the upper die base 1 and the lower die base 2 is improved, the positioning effect is achieved, and the precision of processing the strip materials is guaranteed.

A negative knife edge gap is formed between the first male die core 5 and the first female die cavity 3, namely the width of the first male die core 5 is larger than the width of an inner cavity of the first female die cavity 3, so that the first male die core 5 cannot extend into the first female die cavity 3 in a protruding mode, the first male die core 5 extrudes a material point of a strip material into the first female die cavity 3, a bending step is formed at the material point of the strip material, a pedal strip during normal blanking can be arranged on the back face of the material point, a positive knife edge gap is formed between the second male die core 10 and the second female die cavity 9, the second male die core 10 can extend into the second female die cavity 9 in a protruding mode, the purpose of blanking is achieved, the first male die core 5 and the second male die core 10 are both arranged into punches capable of adjusting the knife edge gap, and adjustment of the knife edge gap in actual operation is facilitated.

The utility model discloses earlier through the cooperation of first male mold core 5 and first die cavity 3 with the material point position formation ascending step of bending of area material, rethread second male mold core 10 and the cooperation of second die cavity 9 are with the position of the downward blanking step of bending, cut processing until accomplishing, the pedal foot area that produces when this processing mode can produce normal blanking, overcome the burr problem that the current mould that upgrades produced at the material point that cuts off area material at last step can't press the burr and produce, the cost and the time of a large amount of artifical burring or machine burring have been saved, the process steps of processing production have been simplified, the intensity of labour of production has been reduced, the trace of polishing brought because of needs have been avoided polishing, the quality of product has been improved, the efficiency of production has been improved, the demand of customer to the product has been satisfied.

In this embodiment, the top of upper die base 1 is connected with upper connecting assembly 11, the bottom of lower die base 2 is connected with lower connecting assembly 12, and upper connecting assembly 11 is connected with the punching press head of punching machine, and lower connecting assembly 12 fixed connection is in the plummer of punching machine.

In this embodiment, go up coupling assembling 11 and include from last upper plate 13 and the upper padding foot board 14 that down connects gradually, go up the built-in elasticity roof 15 that fills up foot board 14, elasticity roof 15 is connected with upper die base 1 through rapping bar 16, on fill up foot board 14 and upper die base 1 conflict, elasticity roof 15 includes that the dominant force glues the piece and glues the flat plate of being connected with the dominant force, rapping bar 16 is connected with the flat plate, this structural design's last coupling assembling 11, the equipment with maintain convenient, swift, elasticity roof 15 plays buffer protection's effect.

In this embodiment, the upper die holder 1 includes an upper die plate 17, an upper backing plate 18, an upper clamp plate 19, a stop plate 20, and a stripper plate 21, which are sequentially connected from top to bottom, the upper die plate 17, the upper backing plate 18, the upper clamp plate 19, the stop plate 20, and the stripper plate 21 are locked together by an equal-height locking member 30, the equal-height locking member 30 includes an equal-height sleeve and a screw, the first cavity 3 is disposed on the stripper plate 21, and the second core 10 protrudes out of the stripper plate 21. After the upper die holder 1 and the lower die holder 2 are assembled, the stripper plate 21 presses the strip first, the punching machine continuously drives the upper die holder 1 to move downwards, so that the top end of the first male die core 5 protrudes into the first female die cavity 3, an upward bending step is formed at the material point of the strip, the bottom end of the second male die core 10 protrudes into the second female die cavity 9, the bending step of the strip is cut off, and the cutting treatment of the material point of the strip is completed.

In this embodiment, the lower connecting assembly 12 includes a lower supporting plate 28 and a lower supporting plate 29 which are sequentially connected from bottom to top, and the lower supporting plate 29 is connected with the lower die holder 2. The lower connecting component 12 with the structural design is convenient and quick to assemble and maintain.

In this embodiment, the lower die base 2 includes a connecting plate 22, a lower bolster 23 and a lower bolster 24 that are connected in sequence from bottom to top, and the first male die core 5 is disposed on the lower bolster 24 and protrudes from the top of the lower bolster 24. The modularization of the lower die holder 2 is realized, and the assembly and the maintenance are convenient and quick.

In this embodiment, lower bolster 24 goes up and down to be provided with kicking block 25 and be used for the stopper 26 spacing to kicking block 25, outside first protruding mold core 5 was located to kicking block 25 cover, kicking block 25 can slide along first protruding mold core 5, be provided with the elastic component 27 that is used for driving kicking block 25 to reset in connecting plate 22 and the lower bolster 23, stopper 26 is spacing to kicking block 25, avoids kicking block 25 to break away from lower bolster 24. After the upper die holder 1 and the lower die holder 2 are assembled, the floating block 25 props against the belt material under the elastic action of the elastic piece 27, and the stripper plate 21 and the floating block 25 press the belt material to ensure the stability of the belt material, so that the precision and the quality of belt material processing are improved.

In this embodiment, the elastic member 27 and the elastic reset member 7 are both springs, and the springs are simple in structure, low in cost, long in service life and good in elasticity.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. The utility model provides a realize taking material point structure that burr-free cut in mould upgrades which characterized in that: the ejector pin is arranged in the upper die base in a lifting mode, the elastic reset piece is arranged on the upper die base and used for driving the ejector pin to reset, the guide sleeve is embedded in the lower die base and is in sliding connection with the guide pillar, the second die cavity is arranged on the lower die base, and the second male die core is arranged on the upper die base.

2. The structure for achieving burr-free cutting of a strip point in a progressive die as recited in claim 1, wherein: the top of the upper die base is connected with an upper connecting assembly, and the bottom of the lower die base is connected with a lower connecting assembly.

3. The structure for achieving burr-free cutting of a strip point in a progressive die as recited in claim 2, wherein: go up coupling assembling and include from last upper bracket and the upper foot plate that down connects gradually, it has the elasticity roof to fill up sole built-in, the elasticity roof is connected with the upper die base via the pin, it contradicts with the upper die base to fill up the sole.

4. The structure for achieving burr-free cutting of a strip point in a progressive die as recited in claim 1, wherein: the upper die base comprises an upper die plate, an upper base plate, an upper clamping plate, a stop plate and a stripper plate which are sequentially connected from top to bottom, the first female die cavity is arranged on the stripper plate, and the second male die core extends to the outside of the stripper plate in a protruding mode.

5. The structure for achieving burr-free cutting of a strip point in a progressive die as recited in claim 2, wherein: the lower connecting assembly comprises a lower supporting plate and a lower supporting plate which are sequentially connected from bottom to top, and the lower supporting plate is connected with the lower die base.

6. The structure for achieving burr-free cutting of a strip point in a progressive die as recited in claim 1, wherein: the lower die base comprises a connecting plate, a lower backing plate and a lower die plate which are sequentially connected from bottom to top, and the first convex die core is arranged on the lower die plate and protrudes out of the top of the lower die plate.

7. The structure for achieving burr-free cutting of a strip point in a progressive die as recited in claim 6, wherein: the lower template goes up and down to be provided with the kicking block and be used for spacing stopper to the kicking block, the kicking block cover is located outside the first male mold core, be provided with the elastic component that is used for driving the kicking block to reset in connecting plate and the lower bolster.

8. The structure for achieving burr-free cutting of a strip point in a progressive die as recited in claim 7, wherein: the elastic piece and the elastic reset piece are both springs.

9. The structure for achieving burr-free cutting of a strip point in a progressive die as recited in claim 1, wherein: and a negative knife edge gap is formed between the first male die core and the first female die cavity.