CN107774803B

CN107774803B - Progressive die

Info

Publication number: CN107774803B
Application number: CN201711294782.4A
Authority: CN
Inventors: 黄秀东; 蒋宁; 邓晓根
Original assignee: Ningbo Zhenyu Technology Co Ltd
Current assignee: Ningbo Zhenyu Technology Co Ltd
Priority date: 2017-12-08
Filing date: 2017-12-08
Publication date: 2023-03-21
Anticipated expiration: 2037-12-08
Also published as: CN107774803A

Abstract

The invention discloses a progressive die.A porous blanking die and a composite blanking die are fixed on a lower die base cushion plate, the top of an upper die base of the composite blanking die is provided with a groove, a push plate is arranged in the groove, and the bottom surface of the push plate is fixed with a dowel bar; the concave part of the blanking female die fixing plate is correspondingly matched with the through hole of the blanking female die to form a cavity, and a knock-out plate is arranged in the cavity; the bottom of the dowel bar is fixed with the striking plate; an inner hole male die fixing plate is fixed on the bottom surface of the upper die base, an inner hole male die is arranged in a die hole of the beating plate, and the inner hole male die fixing plate penetrates through the blanking female die fixing plate and then is fixed with the inner hole male die; a blanking male die is arranged in the stripper plate, an inner hole female die is arranged in the blanking male die, die holes of the inner hole female die are correspondingly matched with die holes of the inner hole male die and a lower die holder respectively, and a discharge hole is formed in a lower die holder base plate; a first spring is arranged between the stripper plate and the lower die holder. The structure can complete the stamping work by working on the punch through a pair of dies, thereby improving the yield and the working efficiency and meeting the manufacturing requirements of products.

Description

Progressive die

Technical Field

The invention relates to the technical field of structures of stamping dies, in particular to a progressive die.

Background

In the prior art, a composite blanking die added on a progressive die generally comprises an upper die, a lower die, a male die and a female die, so that blanking work cannot be realized when a product with a relatively complex size and a relatively large size needs to be blanked, and therefore, after hole blanking is completed in one die, the product is generally conveyed to the other die for punching and blanking.

Therefore, the blanking process of adding the compound die into the progressive die is adopted, the length of the die is shortened, and the requirements of customer products are met.

Disclosure of Invention

The invention aims to provide a progressive die which is designed to solve the defects of the technology and meets the product manufacturing requirements, and further improves the yield and the working efficiency of product manufacturing.

The invention designs a progressive die which comprises a lower die base cushion plate, wherein a porous blanking die for sequentially blanking porous products and a composite blanking die for punching and blanking are sequentially fixed on the lower die base cushion plate from right to left; the concave part of the blanking female die fixing plate is correspondingly matched with the through hole of the blanking female die to form a cavity, and a knock-out plate is arranged in the cavity; the bottom of the dowel bar sequentially penetrates through the upper die base and the blanking female die fixing plate and then is fixed with the knock-out plate; an inner hole male die fixing plate is fixed on the bottom surface of the upper die base, an inner hole male die is arranged in a die hole of the beating plate, and the inner hole male die fixing plate penetrates through the blanking female die fixing plate and then is fixed with the inner hole male die; a blanking male die is arranged in a die hole of the stripper, an inner hole female die is arranged in a die hole of the blanking male die, die holes of the inner hole female die are correspondingly matched with die holes of the inner hole male die and a lower die holder respectively, and a discharge hole correspondingly matched with the die hole of the lower die holder is arranged on a backing plate of the lower die holder; a first spring is arranged between the stripper plate and the lower die base.

The working process of the structure is as follows: the first station of the die is a multi-hole blanking die for punching a plurality of holes on the material plate in sequence, the second station is a composite blanking die for punching and blanking at the same time, after the multi-hole position is punched on the material strip by the multi-hole blanking die of the first station, the material strip punched with the multi-hole position is sent into the composite blanking die of the second station for punching and blanking, when the material strip is punched and blanked, a punching mechanism of a punch press pushes an upper die base to move downwards to reach a bottom dead center, an inner hole male die separates waste materials from the material strip after punching downwards, and the waste materials are output from a discharge hole of a lower die; and the blanking convex die is used for punching the product into the through hole of the blanking concave die of the upper die under the pressing action of the blanking concave die and keeping the product in the through hole. When the upper die moves upwards to the upper dead point under the action of the first spring, the punch transmits force to the knockout plate through the die shank, the push plate and the force transmission rod to push out a product from a through hole of the blanking female die, and meanwhile, the conveyer belt extends into the die to catch and send out the fallen product.

The beneficial effect of above-mentioned structure: the punching work can be completed by working on the punch through a pair of dies, so that the yield and the working efficiency of product manufacturing are improved, and the product manufacturing requirements are met. The automatic punching machine is safe to operate, easy to automatically produce, capable of adopting a high-speed punching machine to produce, capable of reducing the area of a punching machine field and reducing the transportation of semi-finished products and the occupation of a warehouse.

Further preferred, porous blanking die includes the cope match-plate pattern from top to bottom in proper order, the locating template, the material strip locating plate, lower bolster and lower mould fixed plate, arrange in proper order from a left side to the right side on the cope match-plate pattern and be fixed with many and be used for dashing the mark hole respectively, the mounting hole, the ventilation hole, lead positive nail hole, fabrication hole and various flute profile's terrace die that punches a hole, locating template and material strip locating plate are all run through in proper order to the bottom of many terrace dies that punch a hole, and a plurality of nib on the lower bolster match with each terrace die one-to-one that punches a hole respectively, a plurality of nib of lower mould fixed plate communicate with a plurality of nib one-to-one of lower bolster respectively. The structure of the punching mechanism punches the upper die plate downwards through the six punching male dies at the same time, so that holes of various types are punched on a material strip one by one or simultaneously punched; the automatic punching machine has the advantages of safe operation, easy automatic production, capability of adopting a high-speed punching machine for production, capability of reducing the field area of the punching machine and reduction of transportation and warehouse occupation of semi-finished products.

Further preferably, a second spring is arranged between the push plate and the inner bottom surface of the groove. The push plate has the advantages of self-reset function after moving downwards, simple structure and convenient and fast installation and disassembly.

Further preferably, the inner bottom surface of the groove and the top surface of the lower die holder are provided with counter bores, the spring is located in the counter bore of the lower die holder, and the spring is located in the counter bore of the inner bottom surface of the groove. The counter bore of the structure realizes the positioning and fixing effect on the first spring and the second spring, and improves the use performance.

More preferably, a die handle is fixed to the top of the push plate. The die shank of its structure realizes to be connected comparatively convenient with punching press mechanism, realizes the function of quick detach or piece dress.

Further preferably, the lower part of the inner hole female die is provided with an inner hole female die base plate, and the inner hole female die base plate is fixed in a die hole of the lower die holder. The inner hole female die base plate in the structure has the function of rigidly supporting the inner hole female die, so that the lower die holder cannot be sunken and damaged after the die is used for a long time, and the service life is prolonged.

More preferably, the length of the composite blanking die is 900mm, and the length of the multi-hole blanking die is 800mm. The structure solves the technical problem that when complex products are punched, a pair of progressive dies is added on a punching and blanking die, so that the die stations are increased; because the products needing to be blanked are complex and have larger volume, and the maximum die-filling length of the punch press for blanking the industrial motor iron core with complex structure is 2000mm, when the total length of a progressive die is added on the multi-hole blanking die, the total length is about 2400mm, and therefore, the length of the progressive die formed by combining the composite blanking die with the multi-hole blanking die with the structure is controlled within the range of the length of the 2000mm punch press.

Drawings

Fig. 1 is a schematic view of the entire structure of embodiment 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Example 1:

as shown in fig. 1, the progressive die described in this embodiment includes a lower die base plate 17, a multi-hole blanking die 20 for sequentially blanking a multi-hole product and a composite blanking die 22 for punching and blanking are sequentially fixed on the lower die base plate 17 from right to left, the composite blanking die 22 sequentially includes an upper die base 8, a blanking die fixing plate 7, a blanking die 5, a discharging plate 3, and a lower die base 1 fixed to the lower die base plate 17 from top to bottom, a groove 81 is formed in the top of the upper die base 8, a push plate 10 is disposed in the groove 81, and a force-transmitting rod 9 is fixed on the bottom surface of the push plate 10; the concave part of the blanking female die fixing plate 7 is correspondingly matched with the through hole of the blanking female die 5 to form a cavity, and a knock-out plate 6 is arranged in the cavity; the bottom of the dowel bar 9 sequentially penetrates through the upper die base 8 and the blanking female die fixing plate 7 and then is fixed with the beating plate 6; an inner hole male die fixing plate 16 is fixed on the bottom surface of the upper die base 8, an inner hole male die 14 is arranged in a die hole of the beating plate 6, and an inner hole male die fixing plate 13 penetrates through the blanking female die fixing plate 7 and then is fixed with the inner hole male die 14; a blanking male die 4 is arranged in a die hole of the stripper plate 3, an inner hole female die 15 is arranged in a die hole of the blanking male die 4, die holes of the inner hole female die 15 are correspondingly matched with the inner hole male die 14 and die holes of the lower die holder 1 respectively, and a discharge hole 23 correspondingly matched with the die hole of the lower die holder 1 is arranged on a lower die holder backing plate 17; a spring I2 is arranged between the stripper plate 3 and the lower die holder 1.

Based on the concrete structure of the further embodiment of the above device, the multi-hole blanking die 20 sequentially comprises an upper die plate 201, a positioning die plate 202, a material strip positioning plate 203, a lower die plate 204 and a lower die fixing plate 205 from top to bottom, six punching male dies 19 for punching are sequentially arranged and fixed on the upper die plate 201 from left to right, the bottoms of the six punching male dies 19 sequentially penetrate through the positioning die plate 202 and the material strip positioning plate 203, six die holes on the lower die plate 204 are respectively matched with the six punching male dies 19 in a one-to-one correspondence manner, and the six die holes of the lower die fixing plate 205 are respectively communicated with the six die holes of the lower die plate 204 in a one-to-one correspondence manner. And a second spring 12 is arranged between the push plate 10 and the inner bottom surface of the groove 81. The inner bottom surface of the groove 81 and the top surface of the lower die holder 1 are both provided with counter bores, the first spring 2 is positioned in the counter bore of the lower die holder 1, and the second spring 12 is positioned in the counter bore of the inner bottom surface of the groove 81. The top of the push plate 10 is fixed with a die shank 11, and the die shank 11 is fixed through a bolt. The length of the composite blanking die 22 is 900mm, and the length of the multi-hole blanking die 20 is 800mm.

The working process of the structure is as follows: the first station of the die is a multi-hole blanking die 20 for punching a plurality of holes on the material plate in sequence, the second station is a composite blanking die 22 for punching and blanking at the same time, wherein the multi-hole blanking die 20 at the first station punches a multi-hole position on the material strip 21, the material strip 21 punched with the multi-hole position is sent into the composite blanking die 22 at the second station for punching and blanking, when punching and blanking, a punching mechanism of a punch press pushes an upper die base 8 to move downwards to reach a bottom dead center, an inner hole male die 14 separates waste materials from the material strip after punching downwards, and the waste materials are output from a discharge hole of a lower die; the blanking convex die 4 punches the product into the through hole of the blanking concave die 5 of the upper die under the pressing action of the blanking concave die 5 and leaves the product in the through hole. Go up the mould under the effect of spring 2 when up-going dead center, the punch press passes through die shank 11, push pedal 10, dowel bar 9 will do all can and release the product from the through-hole of blanking die 5 on reaching beater 6, the conveyer belt stretches into simultaneously and catches and see off the product that falls in the mould, after the punching press is accomplished push pedal 10 shifts up through spring two 12 and resets, stripper 3 shifts up through spring one 2 and resets, push pedal 10 and blanking die 5 fixed plate all are fixed through screw and dowel bar 9. An inner hole female die base plate 16 is arranged at the lower part of the inner hole female die 15, and the inner hole female die base plate 16 is fixed in a die hole of the lower die holder 1.

The present invention is not limited to the above preferred embodiments, and any other various products can be obtained by anyone in light of the present invention, but any changes in shape or structure thereof, which are similar or identical to the technical solution of the present invention, fall within the protection scope of the present invention.

Claims

1. The utility model provides a progressive die, includes the die holder backing plate, is fixed with the porous blanking die that is used for blanking porous product in proper order and is used for punching a hole, the compound blanking die of blanking on the die holder backing plate from the right side to a left side in proper order, its characterized in that: the composite blanking die sequentially comprises an upper die base, a blanking female die fixing plate, a blanking female die, a stripper plate and a lower die base fixed with a lower die base backing plate from top to bottom, wherein a groove is formed in the top of the upper die base, a push plate is arranged in the groove, and a dowel bar is fixed on the bottom surface of the push plate; the concave part of the blanking female die fixing plate is correspondingly matched with the through hole of the blanking female die to form a cavity, and a knock-out plate is arranged in the cavity; the bottom of the dowel bar sequentially penetrates through the upper die base and the blanking female die fixing plate and then is fixed with the striking plate; an inner hole male die fixing plate is fixed on the bottom surface of the upper die base, an inner hole male die is arranged in a die hole of the striking plate, and the inner hole male die fixing plate penetrates through the blanking female die fixing plate and then is fixed with the inner hole male die; a blanking male die is arranged in a die hole of the stripper, an inner hole female die is arranged in a die hole of the blanking male die, die holes of the inner hole female die are correspondingly matched with die holes of the inner hole male die and a lower die holder respectively, and a discharge hole correspondingly matched with the die hole of the lower die holder is arranged on a backing plate of the lower die holder; a first spring is arranged between the discharging plate and the lower die base, and a second spring is arranged between the pushing plate and the inner bottom surface of the groove;

when punching and blanking are carried out, a punching mechanism of the punching machine pushes an upper die base to move downwards to reach a bottom dead center, an inner hole male die separates waste materials from material strips after punching downwards, and the waste materials are output from a discharge hole of a lower die; the blanking male die punches products into a through hole of the blanking female die of the upper die under the action of downward pressing of the blanking female die and keeps in the through hole, when the upper die moves upwards to an upper dead point under the action of a first spring, the punch transmits force to a beating plate through a push plate and a force transmission rod to push the products out of the through hole of the blanking female die, meanwhile, a conveying belt stretches into the die to receive and send out the fallen products, the push plate moves upwards through a second spring to reset after stamping is finished, and the discharging plate moves upwards through the first spring to reset;

an inner hole female die base plate is arranged at the lower part of the inner hole female die and is fixed in a die hole of the lower die holder;

the multi-hole blanking die sequentially comprises an upper die plate, a positioning die plate, a material strip positioning plate, a lower die plate and a lower die fixing plate from top to bottom, a plurality of punching male dies which are sequentially fixed on the upper die plate from left to right and are respectively used for punching mark holes, mounting holes, ventilation holes, guide nail holes, fabrication holes and various groove shapes are sequentially arranged on the upper die plate, the bottoms of the plurality of punching male dies sequentially penetrate through the positioning die plate and the material strip positioning plate, a plurality of die holes on the lower die plate are respectively matched with the punching male dies in a one-to-one manner, and a plurality of die holes of the lower die fixing plate are respectively communicated with a plurality of die holes of the lower die plate in a one-to-one manner.

2. The progressive die of claim 1, wherein: the inner bottom surface of the groove and the top surface of the lower die holder are both provided with counter bores, a spring is located in the counter bore of the lower die holder, and a spring is located in the counter bore of the inner bottom surface of the groove.

3. A progressive die as recited in claim 1, wherein: the top of the push plate is fixed with a die handle.

4. A progressive die as recited in claim 1, wherein: the length of the composite blanking die is 900mm, and the length of the multi-hole blanking die is 800mm.