CN113458237B

CN113458237B - Stamping die capable of preventing scraps from jumping and popping out

Info

Publication number: CN113458237B
Application number: CN202110728353.3A
Authority: CN
Inventors: 丘仕平
Original assignee: Power Metal Hard Ware Dong Guan Ltd
Current assignee: Power Metal Hard Ware Dong Guan Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2023-08-04
Anticipated expiration: 2041-06-29
Also published as: CN113458237A

Abstract

The invention provides a stamping die capable of ejecting anti-jump scraps, which comprises an upper die structure, a lower die structure and a lower die structure, wherein the upper die structure comprises a mounting plate, a punch and a waste cutting knife; the position that the inner chamber wall top of ejection of compact chamber is close to left side and blocks the piece is through bolt fixedly connected with shell fragment, and the bottom of ejection of compact chamber has been seted up with the position that the shell fragment corresponds and has been accomodate the chamber, and one side of accomodating the intracavity is fixed to be provided with push-pull motor, and push-pull motor is connected with flexible motor through the push-pull shaft, and flexible motor's power take off end is connected with the telescopic shaft, and the material taking out mouth with outside intercommunication has been seted up on the right side of ejection of compact chamber. The beneficial effects of the invention are as follows: on the one hand, the condition that the blanking hole is blocked due to the phenomenon of chip jump is prevented, and on the other hand, the waste material can be ejected out in time without regularly disassembling the die to clean the waste material.

Description

Stamping die capable of preventing scraps from jumping and popping out

Technical Field

The invention relates to the technical field of stamping dies, in particular to a stamping die capable of preventing jump scraps from being ejected.

Background

A stamping die is a special technological device for processing a material (metal or nonmetal) into a part (or a semi-finished product) in cold stamping processing, and is called a cold stamping die (commonly called a cold stamping die). Stamping is a press working method in which a material is pressed at room temperature by a die attached to a press to be separated or plastically deformed, thereby obtaining a desired part. In the daily stamping die processing process, when the waste is punched by the punch, and the punch is withdrawn, the waste can jump along the withdrawing direction of the punch, so that the waste cannot fall into the waste collecting tank well, and the blanking tank is blocked under severe conditions; in addition, in the prior art, general waste is accumulated in the die and is cleaned periodically, and the cleaning time is required to be marked, so that overflow is caused once the cleaning is forgotten, and the normal stamping action of the die is affected. In view of this, improvements are needed.

Disclosure of Invention

Therefore, the invention aims to provide the stamping die capable of preventing the scraps from jumping and ejecting, which can prevent the situation that the blanking hole is blocked due to the scraps from jumping, and can eject the scraps in time without periodically disassembling the die to clean the scraps.

The invention provides a stamping die capable of ejecting anti-jump scraps, which comprises an upper die structure and a lower die structure, wherein the upper die structure comprises a mounting plate, a punch head and a waste cutting knife, the lower die structure comprises a lower die base plate and a lower die seat, a forming cavity corresponding to the punch head is formed in the upper surface of the lower die seat, a waste blanking hole corresponding to the waste cutting knife is formed in the bottom of the forming cavity, a discharging cavity is formed in the lower die seat at a position corresponding to the waste blanking hole, the waste blanking hole is communicated with the discharging cavity, and blocking pieces are elastically connected to two opposite sides of the waste blanking hole, which is close to the discharging cavity; the top of the inner cavity wall of the discharging cavity is close to the left side, an elastic sheet is fixedly connected to the position of the blocking sheet through a bolt, a storage cavity is formed in the position, corresponding to the elastic sheet, of the bottom of the discharging cavity, a push-pull motor is fixedly arranged on one side in the storage cavity, the push-pull motor is connected with a telescopic motor through a push-pull shaft, the power output end of the telescopic motor is connected with a telescopic shaft, a stepping-down groove for left-right displacement of the telescopic shaft is formed between the discharging cavity and the storage cavity, and a pull ring for inserting the telescopic shaft is connected to the lower left side of the elastic sheet; when the telescopic shaft stretches out and pulls the elastic sheet to move leftwards, the elastic sheet is in a tightening state; when the telescopic shaft is in a retracted state, the elastic sheet is in a maximum open state, and the lower part of the elastic sheet extends to the position right below the waste blanking hole and is close to the middle part; and the right side of the discharging cavity is provided with a material taking opening communicated with the outside.

Preferably, the blocking piece is connected with the side wall of the waste blanking hole through a torsion spring; when the waste cutting knife is in a normal state, the blocking sheets on the two opposite sides are in a horizontal placement state, and when the waste cutting knife is in a blanking state, the blocking sheets on the two opposite sides are turned over to the discharging cavity under the action of the downward pressing force of the waste cutting knife.

Preferably, the upper part of the free end of the blocking piece is formed with a lower inclined surface.

As the preferred scheme, the bottom of ejection of compact chamber is located the waste material blanking hole corresponds and has seted up the buffering indent under, be provided with T shape buffering briquetting in the buffering indent, the bottom of T shape buffering briquetting runs through the bottom of die holder, be provided with in the buffering indent with the buffer spring of T shape buffering briquetting offset contact, works as buffer spring is in when the biggest distance that opens, the upper surface of T shape buffering briquetting with the bottom level of ejection of compact chamber aligns.

As a preferable scheme, the upper surface of T-shaped buffer pressing block is provided with a negative pressure air hole, a pipeline is arranged in the T-shaped buffer pressing block, one end of the pipeline is connected with the negative pressure air hole, and the other end of the pipeline extends out of the lower die holder and is connected with a negative pressure air source.

As a preferable scheme, a rotary feeding structure is arranged at the material taking opening; the rotary feeding structure comprises a material carrying disc, a rotary motor and a rotary shaft, wherein the rotary motor is arranged at the bottom of the material taking opening, one end of the rotary shaft is connected with a power output end of the rotary motor, and the other end of the rotary shaft is connected with the bottom of the material carrying disc; a plurality of clapboards are arranged on the material carrying disc in a circumferential array, a circular ring corresponding to the clapboards is arranged on the upper surface of the material carrying disc in a protruding mode, and the circular ring and the clapboards divide the material carrying disc into a plurality of material carrying spaces; one side of the material carrying disc extends out of the lower die holder.

Preferably, a waste receiving groove having a shape corresponding to the shape of the waste is formed in each of the loading spaces on the loading disk.

As a preferable scheme, a photoelectric sensor transmitting end is arranged on the upper part of one side of the discharging cavity, which is close to the material taking opening, and a photoelectric sensor receiving end corresponding to the photoelectric sensor transmitting end is arranged on the lower part of one side of the discharging cavity, which is close to the material taking opening.

Preferably, a guide feeding port corresponding to the material carrying disc is formed at the position, communicated with the material taking port, on the right side of the material discharging cavity, and the shape of the guide feeding port corresponds to the shape of the waste material.

The beneficial effects of the invention are as follows:

1. the waste cutting knife cuts the waste and then drives the waste to the discharging cavity, and when the waste cutting knife is withdrawn, the blocking pieces at the two sides are reset to the horizontally aligned positions so as to block the splashing of the waste, thereby avoiding the situation that the waste is blocked due to the fact that the waste returns to the waste blanking hole; then, ejecting the waste material to the direction of the material taking opening through the elastic reset acting force of the elastic sheet, wherein the material taking opening is communicated with the outside of the die, and the waste material can be directly taken away from the outside, so that the die is not required to be disassembled periodically to clean the waste material;

2. the T-shaped buffer pressing block is arranged, and generates a buffer acting force for the waste cutting knife through the T-shaped buffer pressing block, so that the waste cutting knife is prevented from being broken due to overlarge blanking acting force, and the service life of the waste cutting knife is prolonged;

3. the material taking opening is provided with the rotary feeding structure, waste materials can be sequentially sent out of the die through the rotary feeding structure and then taken away by matching with an external manipulator, so that for some processing procedures requiring environment-friendly recycling of the waste materials, the waste materials can be directly taken away piece by piece through the manipulator and then conveyed to the next processing procedure through the conveying structure, and the working efficiency is improved;

4. the upper surface of T shape buffering briquetting is provided with the negative pressure gas pocket, and the waste material is adsorbed with the waste material to the negative pressure that the negative pressure gas pocket produced after waste material and T shape buffering briquetting contact to further prevent that the waste material from taking place to splash.

Drawings

Fig. 1 is a front cross-sectional view of the present invention.

Fig. 2 is an enlarged view at a of fig. 1.

FIG. 3 is a schematic illustration of the connection of the blocking tab to the torsion spring.

Fig. 4 is a schematic view of the telescopic shaft extending to pull the spring plate to move leftwards.

Fig. 5 is a schematic diagram of the waste cutting knife pressing down into the discharging cavity after the telescopic shaft stretches out and pulls the elastic sheet to move leftwards.

Fig. 6 is a top view of the rotary feed structure.

The reference numerals are: the device comprises a mounting plate 10, a waste cutting knife 11, a waste blanking hole 12, a blocking piece 13, a spring piece 14, a lower inclined surface 15, a material taking opening 16, a material discharging cavity 17, a T-shaped buffer pressing block 18, a push-pull shaft 19, a lower die cushion plate 20, a lower die holder 22, a supporting rod 21, a forming cavity 23, a torsion spring 24, a photoelectric sensor transmitting end 25, a punch 26, a negative pressure air hole 27, a photoelectric sensor receiving end 28, waste 29, a buffer spring 30, a buffer pressing groove 31, a pipeline 32, a bolt 33, a containing cavity 34, a telescopic shaft 36, a pull ring 35, a relief groove 37, a push-pull motor 38, a material loading space 39, a telescopic motor 40, a guide material loading opening 41, a material loading disc 45, a rotary motor 44, a rotary shaft 42, a circular ring 43, a partition 46 and a waste containing groove 47.

Detailed Description

The invention will be further described in detail with reference to the following detailed description and the accompanying drawings, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-6, the invention provides a stamping die capable of ejecting anti-jump scraps, which comprises an upper die structure and a lower die structure, wherein the upper die structure comprises a mounting plate 10, a punch 26 and a scrap cutter 11, the punch 26 is mounted on the lower surface of the mounting plate 10, and the scrap cutter 11 is mounted on the lower surface of the punch 26. The lower die structure comprises a lower die cushion plate 20 and a lower die holder 22, wherein a forming cavity 23 corresponding to a punch 26 is formed in the upper surface of the lower die holder 22, a waste blanking hole 12 corresponding to a waste cutting knife 11 is formed in the bottom of the forming cavity 23, and the lower die cushion plate 20 is connected with the lower die holder 22 through a supporting rod 21. A discharging cavity 17 is formed in the position, corresponding to the waste blanking hole 12, in the lower die holder 22, the waste blanking hole 12 is communicated with the discharging cavity 17, and blocking sheets 13 are elastically connected to two opposite sides of the position, close to the discharging cavity 17, of the waste blanking hole 12. The blocking piece 13 is connected with the side wall of the waste blanking hole 12 through a torsion spring 24; when in a normal state, the blocking pieces 13 on the opposite sides are in a horizontally placed state, and when in a blanking state, the blocking pieces 13 on the opposite sides are turned into the discharging cavity 17 under the pressing force of the waste cutting knife 11. The upper part of the free end of the blocking piece 13 is provided with a lower inclined plane 15, when the waste cutting knife 11 presses the blocking piece 13 down, the blocking piece 13 is firstly contacted with the lower inclined plane 15 and then pressed down, so that an auxiliary and guiding function is realized.

The position of the top of the inner cavity wall of the discharging cavity 17, which is close to the left blocking piece 13, is fixedly connected with an elastic piece 14 through a bolt 33, a storage cavity 34 is formed in the position, corresponding to the elastic piece 14, of the bottom of the discharging cavity 17, a push-pull motor 38 is fixedly arranged on one side in the storage cavity 34, the push-pull motor 38 is connected with a telescopic motor 40 through a push-pull shaft 19, a power output end of the telescopic motor 40 is connected with a telescopic shaft 36, a yielding groove 37 for left-right displacement of the telescopic shaft 36 is formed between the discharging cavity 17 and the storage cavity 34, and a pull ring 35 for inserting the telescopic shaft 36 is connected on the lower left side of the elastic piece 14. When the telescopic shaft 36 is inserted into the pull ring 35 in a stretching mode, the push-pull motor 38 drives the telescopic motor 40 to move leftwards through the push-pull shaft 19, and the elastic sheet 14 is in a tightening state when the telescopic shaft 36 pulls the elastic sheet 14 to move leftwards; when the telescopic shaft 36 is in the retracted state, the elastic sheet 14 is in the maximum open state, and the lower part of the elastic sheet 14 extends to a position right below the waste blanking hole 12 and close to the middle part; the right side of the discharging cavity 17 is provided with a material taking opening 16 communicated with the outside.

In actual operation, the telescopic shaft 36 extends and is inserted into the pull ring 35, the push-pull motor 38 drives the telescopic motor 40 to move leftwards through the push-pull shaft 19, and the telescopic shaft 36 pulls the elastic sheet 14 to move leftwards, so that the elastic sheet 14 is stretched; when the waste material needs to be ejected, the telescopic motor 40 causes the telescopic shaft 36 to retract, and the elastic sheet 14 can be ejected towards the direction of the waste material, so that the waste material is ejected towards the position of the material taking opening 16. Subsequently, the push-pull motor 38 drives the telescopic motor 40 to move rightwards through the push-pull shaft 19, the telescopic shaft 36 stretches out and is inserted into the pull ring 35, and the push-pull motor 38 drives the telescopic motor 40 to move leftwards through the push-pull shaft 19 to prepare for the next ejecting action.

The bottom of the discharging cavity 17 is located right below the corresponding position of the waste blanking hole 12, a buffer pressing groove 31 is formed, a T-shaped buffer pressing block 18 is arranged in the buffer pressing groove 31, the bottom of the T-shaped buffer pressing block 18 penetrates through the bottom of the lower die holder 22, a buffer spring 30 which is in propping contact with the T-shaped buffer pressing block 18 is arranged in the buffer pressing groove 31, and when the buffer spring 30 is at the maximum opening distance, the upper surface of the T-shaped buffer pressing block 18 is horizontally aligned with the bottom of the discharging cavity 17. The T-shaped buffer pressing block is used for generating a buffer acting force for the waste cutting knife, so that the waste cutting knife is prevented from being broken due to overlarge blanking acting force, and the service life of the waste cutting knife is prolonged.

The upper surface of T shape buffering briquetting 18 is provided with negative pressure gas pocket 27, is provided with pipeline 32 in the T shape buffering briquetting 18, and the one end and the negative pressure gas pocket 27 of pipeline 32 are connected, and the other end of pipeline 32 extends outside die holder 22 and is connected with the negative pressure air supply. After the waste contacts with the T-shaped buffer pressing block, the waste is adsorbed by the negative pressure generated by the negative pressure air hole, so that the waste is further prevented from splashing.

A rotary feeding structure is arranged at the material taking opening 16; the rotary feeding structure comprises a material carrying disc 45, a rotary motor 44 and a rotary shaft 42, wherein the rotary motor 44 is arranged at the bottom of the material taking hole 16, one end of the rotary shaft 42 is connected with the power output end of the rotary motor 44, and the other end of the rotary shaft 42 is connected with the bottom of the material carrying disc 45; a plurality of partition plates 46 are arranged on the material carrying disc 45 in a circumferential array, circular rings 43 corresponding to the partition plates 46 are arranged on the upper surface of the material carrying disc 45 in a protruding mode, and the circular rings 43 and the partition plates 46 divide the material carrying disc 45 into a plurality of material carrying spaces 39; one side of the loading disc 45 extends out of the lower die holder 22. A waste receiving slot 47 having a shape corresponding to the shape of the waste 29 is formed in each of the loading spaces 39 on the loading disc 45, so that the waste falls into the waste receiving slot 47 more stably and correspondingly and is conveyed out through the loading disc 45.

A photoelectric sensor transmitting end 25 is arranged at the upper part of one side of the discharging cavity 17, which is close to the material taking opening 16, and a photoelectric sensor receiving end 28 corresponding to the photoelectric sensor transmitting end 25 is arranged at the lower part of one side of the discharging cavity 17, which is close to the material taking opening 16. The photoelectric sensor transmitting end 25 and the photoelectric sensor receiving end 28 are connected with the control device of the invention, and the mutual matching of the photoelectric sensor transmitting end 25 and the photoelectric sensor receiving end 28 senses whether the waste is shot to the position of the material taking opening 16 or not.

A guide inlet 41 corresponding to the loading disc 45 is formed at a position on the right side of the discharging cavity 17 communicating with the material taking opening 16, and the shape of the guide inlet 41 corresponds to the shape of the waste material. Through setting up direction pan feeding mouth 41, make the waste material can correspond and pass direction pan feeding mouth 41 and enter into carrying disc 45, promote the degree of accuracy of pan feeding.

In the embodiment, the waste cutting knife cuts the waste and then drives the waste into the discharging cavity, the waste is adsorbed by negative pressure generated by the negative pressure air hole after the waste contacts with the T-shaped buffer pressing block, and after the waste cutting knife is withdrawn, the blocking pieces at the two sides are reset to the horizontally aligned positions so as to block the splashing of the waste, thereby avoiding the condition that the waste is blocked due to the fact that the waste returns to the waste blanking hole; then, negative pressure gas pocket stops outputting the negative pressure, pops out the waste material to carrying the direction of material disc 45 through the elasticity restoring force of shell fragment, and waste material accessible carries material disc 45 to be sent out outside the mould in order, and external manipulator is taken away with the waste material again to some processing procedures that need carry out the environmental protection to the waste material and recycle, can directly take away the waste material piece by piece through the manipulator, and rethread conveying structure carries next processing procedure, promotes work efficiency.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The utility model provides a prevent jumping stamping die that bits can pop out, includes mould structure and lower mould structure, go up mould structure and include mounting panel (10), drift (26), waste material cut out cutter (11), the lower mould structure includes lower mould backing plate (20), die holder (22), forming cavity (23) that correspond with drift (26) are seted up to the upper surface of die holder (22), forming cavity (23) bottom seted up with waste material blanking hole (12) that waste material cut out cutter (11) correspond, its characterized in that: a discharging cavity (17) is formed in the position, corresponding to the waste blanking hole (12), in the lower die holder (22), the waste blanking hole (12) is communicated with the discharging cavity (17), and blocking sheets (13) are elastically connected to two opposite sides of the position, close to the discharging cavity (17), of the waste blanking hole (12); the utility model discloses a flexible electric energy storage device, including ejection of compact chamber (17), baffle piece (13) and shell fragment (14) are formed in the position that is close to left side on the inner chamber wall top of ejection of compact chamber (17) through bolt (33) fixedly connected with shell fragment (14), the bottom of ejection of compact chamber (17) with the position that shell fragment (14) corresponds has been seted up and has been accomodate chamber (34), one side in accomodating chamber (34) is fixedly provided with push-pull motor (38), push-pull motor (38) are connected with telescopic motor (40) through push-pull shaft (19), the power take-off end of telescopic motor (40) is connected with telescopic shaft (36), ejection of compact chamber (17) with accomodate and be formed with between chamber (34) and supply telescopic shaft (36) left and right sides displacement groove (37), the left side lower part of shell fragment (14) is connected with confession pull ring (35) that telescopic shaft (36) were inserted. When the telescopic shaft (36) stretches out to pull the elastic sheet (14) to move leftwards, the elastic sheet (14) is in a tightening state; when the telescopic shaft (36) is in a retracted state, the elastic sheet (14) is in a maximum open state, and the lower part of the elastic sheet (14) extends to the position right below the waste blanking hole (12) and is close to the middle part; a material taking opening (16) communicated with the outside is formed in the right side of the material discharging cavity (17);

a rotary feeding structure is arranged at the material taking opening (16); the rotary feeding structure comprises a material carrying disc (45), a rotary motor (44) and a rotary shaft (42), wherein the rotary motor (44) is arranged at the bottom of the material taking opening (16), one end of the rotary shaft (42) is connected with the power output end of the rotary motor (44), and the other end of the rotary shaft (42) is connected with the bottom of the material carrying disc (45); a plurality of partition plates (46) are arranged on the material carrying disc (45) in a circumferential array, a circular ring (43) corresponding to the partition plates (46) is arranged on the upper surface of the material carrying disc (45) in a protruding mode, and the circular ring (43) and the partition plates (46) divide the material carrying disc (45) into a plurality of material carrying spaces (39); one side of the material carrying disc (45) extends out of the lower die holder (22).

2. The scrap-jumping-prevention and popup-able stamping die as claimed in claim 1, wherein: the blocking piece (13) is connected with the side wall of the waste blanking hole (12) through a torsion spring (24); when in a normal state, the blocking sheets (13) on the opposite sides are in a horizontal placement state, and when in a blanking state, the blocking sheets (13) on the opposite sides are turned into the discharging cavity (17) under the downward pressing force of the waste cutting knife (11).

3. The scrap-jumping-prevention and popup-able stamping die as claimed in claim 2, wherein: the upper part of the free end of the blocking piece (13) is provided with a lower inclined surface (15).

4. The scrap-jumping-prevention and popup-able stamping die as claimed in claim 1, wherein: the bottom of ejection of compact chamber (17) is located buffer pressing groove (31) have been seted up under waste material blanking hole (12) corresponds, be provided with T shape buffer briquetting (18) in buffer pressing groove (31), the bottom of T shape buffer briquetting (18) is run through the bottom of die holder (22), be provided with in buffer pressing groove (31) with buffer spring (30) of T shape buffer briquetting (18) offset contact, works as buffer spring (30) are in when the biggest open distance, the upper surface of T shape buffer briquetting (18) with the bottom level of ejection of compact chamber (17) aligns.

5. The scrap-jumping-prevention and popup-able stamping die as set forth in claim 4, wherein: the upper surface of T shape buffering briquetting (18) is provided with negative pressure gas pocket (27), be provided with pipeline (32) in T shape buffering briquetting (18), one end of pipeline (32) with negative pressure gas pocket (27) are connected, the other end of pipeline (32) extends outside die holder (22) is connected with the negative pressure air supply.

6. The scrap-jumping-prevention and popup-able stamping die as claimed in claim 1, wherein: a scrap receiving groove (47) with a shape corresponding to the shape of the scrap (29) is formed on the loading disc (45) and positioned in each loading space (39).

7. The scrap-jumping-prevention and popup-able stamping die as claimed in claim 1, wherein: the photoelectric sensor transmitting end (25) is arranged on the upper portion of one side, close to the material taking opening (16), of the material discharging cavity (17), and the photoelectric sensor receiving end (28) corresponding to the photoelectric sensor transmitting end (25) is arranged on the lower portion of one side, close to the material taking opening (16), of the material discharging cavity (17).

8. The scrap-jumping-prevention and popup-able stamping die as set forth in claim 6, wherein: the right side of the discharging cavity (17) is provided with a guide feeding port (41) corresponding to the material carrying disc (45) at a position communicated with the material taking port (16), and the shape of the guide feeding port (41) corresponds to the shape of the waste material.