CN113458237A

CN113458237A - Stamping die capable of preventing scrap jumping and being ejected

Info

Publication number: CN113458237A
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: 2021-10-01
Anticipated expiration: 2041-06-29
Also published as: CN113458237B

Abstract

The invention provides a stamping die capable of preventing scrap jumping and ejecting, wherein an upper die structure comprises a mounting plate, a punch and a waste cutting knife, the lower die structure comprises a lower die base plate and a lower die base, the upper surface of the lower die base is provided with a forming cavity, the bottom of the forming cavity is provided with a waste blanking hole, the lower die base is internally provided with a discharging cavity, and two opposite sides of the position, close to the discharging cavity, of the waste blanking hole are elastically connected with blocking pieces; the position that the inner chamber wall top in unloading chamber is close to the left side and blocks the piece passes through bolt fixedly connected with shell fragment, and the bottom in unloading chamber has been seted up with the position that the shell fragment corresponds and has been accomodate the chamber, accomodates the fixed push-pull motor that is provided with in one side of intracavity, and push-pull motor is connected with flexible motor through the push-pull axle, and the power take off end of flexible motor is connected with the telescopic shaft, and the material mouth of getting with outside intercommunication is seted up on the right side in unloading chamber. The invention has the beneficial effects that: prevent on the one hand to appear jumping the circumstances that the bits caused blanking hole to block up, on the other hand can in time pop out the waste material, need not regularly to dismantle the mould clearance waste material.

Description

Stamping die capable of preventing scrap jumping and being ejected

Technical Field

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

Background

The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping, and is called cold stamping die (commonly called cold stamping die). Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part. In the daily processing process of a stamping die, after waste materials are blanked by a punch, when the punch is withdrawn, the waste materials can jump along the withdrawal direction of the punch, so that the waste materials cannot well fall into a waste material collecting tank, and a blanking groove can be blocked under severe conditions; in addition, in the prior art, general waste materials are accumulated in the die and cleaned again at regular intervals, the cleaning time needs to be marked, and once the cleaning is forgotten, overflow can be caused, so that the normal stamping action of the die is influenced. In view of such circumstances, improvement is urgently required.

Disclosure of Invention

Based on the above, the invention aims to provide the stamping die capable of preventing the scrap jumping and ejecting, which can prevent the scrap jumping from causing the blockage of the blanking hole on one hand, and can eject the waste materials in time on the other hand without periodically disassembling the die to clean the waste materials.

The invention provides a scrap-jumping-preventing ejectable stamping die which comprises an upper die structure and a lower die structure, wherein the upper die structure comprises a mounting plate, a punch and a waste cutting knife, the lower die structure comprises a lower die base plate and a lower die base, the upper surface of the lower die base is provided with a forming cavity corresponding to the punch, the bottom of the forming cavity is provided with a waste blanking hole corresponding to the waste cutting knife, a discharging cavity is formed in the lower die base at a position corresponding to the waste blanking hole, the waste blanking hole is communicated with the discharging cavity, and two opposite sides of the waste blanking hole close to the discharging cavity are elastically connected with blocking pieces; the top of the inner cavity wall of the discharging cavity, which is close to the left side of the blocking piece, is fixedly connected with a spring piece through a bolt, the bottom of the discharging cavity is provided with a containing cavity at a position corresponding to the spring piece, one side in the containing cavity is fixedly provided with a push-pull motor, 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 abdicating groove for the left-right displacement of the telescopic shaft is formed between the discharging cavity and the containing cavity, and the lower part of the left side of the spring piece is connected with a pull ring for the telescopic shaft to be inserted; when the telescopic shaft extends out to pull the elastic sheet to move leftwards, the elastic sheet is in a tightened state; when the telescopic shaft is in a retraction state, the elastic sheet is in a maximum opening state, and the lower part of the elastic sheet extends to a position right below the waste blanking hole and close to the middle part; and a material taking port communicated with the outside is formed in the right side of the discharging cavity.

As a preferred scheme, 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 pieces on the two opposite sides are in a horizontal placing state, and when the waste cutting knife is in a blanking state, the blocking pieces on the two opposite sides are overturned into the discharging cavity under the downward pressing acting 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 a preferred scheme, a buffering pressure groove is formed in the bottom of the discharging cavity and located right below the waste blanking hole, a T-shaped buffering pressing block is arranged in the buffering pressure groove, the bottom of the T-shaped buffering pressing block penetrates through the bottom of the lower die base, a buffering spring which is in abutting contact with the T-shaped buffering pressing block is arranged in the buffering pressure groove, and when the buffering spring is located at the maximum opening distance, the upper surface of the T-shaped buffering pressing block is horizontally aligned with the bottom of the discharging cavity.

According to a preferable scheme, a negative pressure air hole is formed in the upper surface of the T-shaped buffering pressing block, a pipeline is arranged in the T-shaped buffering 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 base and is connected with a negative pressure air source.

As a preferred scheme, a rotary feeding structure is arranged at the material taking port; the rotary feeding structure comprises a material loading disc, a rotary motor and a rotary shaft, the rotary motor is installed at the bottom of the material taking port, one end of the rotary shaft is connected with the power output end of the rotary motor, and the other end of the rotary shaft is connected with the bottom of the material loading disc; a plurality of partition plates are circumferentially arranged on the material loading disc in an array manner, circular rings corresponding to the partition plates are convexly arranged on the upper surface of the material loading disc, and the circular rings and the partition plates divide the material loading disc into a plurality of material loading spaces; one side of the material loading disc extends out of the lower die base.

Preferably, a scrap accommodating groove corresponding to the shape of the scrap is formed in each loading space on the loading disc.

As a preferred scheme, a photoelectric sensor transmitting end is installed on the upper portion of one side, close to the material taking port, of the discharging cavity, and a photoelectric sensor receiving end corresponding to the photoelectric sensor transmitting end is installed on the lower portion of one side, close to the material taking port, of the discharging cavity.

As a preferable scheme, a guide feeding port corresponding to the material loading disc is formed at the position where the right side of the discharging cavity is communicated with the material taking port, and the shape of the guide feeding port corresponds to the shape of the waste material.

The invention has the beneficial effects that:

1. the waste cutting knife cuts the waste and then drives the waste into the discharging cavity, and when the waste cutting knife is pulled back, the blocking pieces on the two sides are reset to the horizontally aligned positions so as to block the waste from splashing, thereby avoiding the situation that the waste is blocked due to the fact that the waste returns to the waste blanking hole; then, the waste is ejected towards the direction of the material taking port by the elastic reset acting force of the elastic sheet, the material taking port is communicated with the outside of the die, and the waste can be directly taken away from the outside, so that the die does not need to be periodically disassembled to clean the waste;

2. the T-shaped buffering pressing block is arranged, and a buffering acting force is generated on the waste cutting knife through the T-shaped buffering 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 rotary feeding structure is arranged at the material taking port, the waste materials can be orderly sent out of the die through the rotary feeding structure and then taken away by matching with an external manipulator, and for some processing procedures needing 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, so that 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 lived with the absorption of negative pressure that the negative pressure gas pocket produced after contacting with T shape buffering briquetting to further prevent that the waste material from taking place to splash.

Drawings

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

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

FIG. 3 is a schematic view of the connection relationship between the blocking plate and the torsion spring.

Fig. 4 is a schematic diagram of the telescopic shaft extending out and pulling the movable elastic sheet to move leftwards.

Fig. 5 is a schematic diagram of the waste cutting knife being pressed down into the discharging cavity after the telescopic shaft is extended and the movable elastic sheet is pulled to move leftwards.

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

The reference signs are: the device comprises a mounting plate 10, a waste cutting knife 11, a waste blanking hole 12, a blocking piece 13, an elastic sheet 14, a lower inclined surface 15, a material taking port 16, a material discharging cavity 17, a T-shaped buffer pressing block 18, a push-pull shaft 19, a lower die base plate 20, a lower die base 22, a support 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 abdicating groove 37, a push-pull motor 38, a material carrying space 39, a telescopic motor 40, a guide material inlet 41, a material carrying disc 45, a rotating motor 44, a rotating shaft 42, a circular ring 43, a partition plate 46 and a waste material containing groove 47.

Detailed Description

For a better understanding of the features and technical solutions of the present invention, together with the specific objects and functions attained by the invention, reference is made to the following detailed description and accompanying drawings that form a part hereof.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 6, the present invention provides a stamping die capable of preventing scrap jumping and ejecting, including an upper die structure and a lower die structure, wherein the upper die structure includes a mounting plate 10, a punch 26, and a scrap cutting blade 11, the punch 26 is mounted on a lower surface of the mounting plate 10, and the scrap cutting blade 11 is mounted on a lower surface of the punch 26. The lower die structure comprises a lower die base plate 20 and a lower die base 22, a forming cavity 23 corresponding to the punch 26 is formed in the upper surface of the lower die base 22, a waste material blanking hole 12 corresponding to the waste material cutting knife 11 is formed in the bottom of the forming cavity 23, and the lower die base plate 20 is connected with the lower die base 22 through a support rod 21. Discharge cavity 17 has been seted up with the position that waste material blanking hole 12 corresponds in the die holder 22, waste material blanking hole 12 and discharge cavity 17 intercommunication, the equal elastic connection in the relative both sides in position that waste material blanking hole 12 is close to discharge cavity 17 blocks piece 13. 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 two opposite sides are in a horizontal placing state, and when in a blanking state, the blocking pieces 13 on the two opposite sides are overturned into the discharging cavity 17 under the downward pressing force of the scrap cutting knife 11. The upper portion of the free end of the blocking piece 13 is formed with a lower inclined surface 15, and when the waste cutting knife 11 presses down the blocking piece 13, the waste cutting knife contacts with the lower inclined surface 15 first, and then presses down the blocking piece 13, thereby playing a role of assistance and guidance.

The position that the inner chamber wall top of ejection of compact chamber 17 is close to left side barrier sheet 13 passes through bolt 33 fixedly connected with shell fragment 14, the bottom of ejection of compact chamber 17 has been seted up with the position that shell fragment 14 corresponds and has been accomodate chamber 34, accomodate the fixed push-pull motor 38 that is provided with in the chamber 34, push-pull motor 38 is connected with flexible motor 40 through push-and-pull shaft 19, the power take off end of flexible motor 40 is connected with telescopic shaft 36, ejection of compact chamber 17 and accomodate and be formed with the groove 37 of stepping down that supplies telescopic shaft 36 left and right displacement between the chamber 34, the left side sub-unit connection of shell fragment 14 has the pull ring 35 that supplies telescopic shaft 36 male. When the telescopic shaft 36 extends out 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 when the telescopic shaft 36 pulls the elastic sheet 14 to move leftwards, the elastic sheet 14 is in a tightened state; when the telescopic shaft 36 is in a retracted state, the elastic sheet 14 is in a maximum opening state, and the lower part of the elastic sheet 14 extends to a position right below the waste material blanking hole 12 and close to the middle position; the right side of the discharging cavity 17 is provided with a material taking port 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 leftward through the push-pull shaft 19, and the telescopic shaft 36 pulls the elastic sheet 14 to move leftward, so that the elastic sheet 14 is stretched; when the waste material needs to be ejected, the extension motor 40 causes the extension shaft 36 to retract, and the elastic sheet 14 can be ejected towards the waste material, so as to eject the waste material to the position of the material taking port 16. Then, the push-pull motor 38 drives the telescopic motor 40 to move rightwards through the push-pull shaft 19, the telescopic shaft 36 extends 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 pop-up action.

The bottom of the discharging cavity 17 is located right below the corresponding waste blanking hole 12 and is provided with a buffering pressure groove 31, a T-shaped buffering pressing block 18 is arranged in the buffering pressure groove 31, the bottom of the T-shaped buffering pressing block 18 penetrates through the bottom of the lower die base 22, a buffering spring 30 which is in contact with the T-shaped buffering pressing block 18 in a propping mode is arranged in the buffering pressure groove 31, and when the buffering spring 30 is located at the maximum opening distance, the upper surface of the T-shaped buffering pressing block 18 is horizontally aligned with the bottom of the discharging cavity 17. The T-shaped buffering pressing block generates buffering acting force on the waste cutting knife, 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 the T-shaped buffer pressing block 18 is provided with a negative pressure air hole 27, a pipeline 32 is arranged in the T-shaped buffer pressing block 18, one end of the pipeline 32 is connected with the negative pressure air hole 27, and the other end of the pipeline 32 extends out of the lower die holder 22 and is connected with a negative pressure air source. After the waste material contacts with the T-shaped buffering pressing block, the waste material is adsorbed by the negative pressure generated by the negative pressure air holes, so that the waste material is further prevented from being splashed.

A rotary feeding structure is arranged at the material taking port 16; the rotary feeding structure comprises a loading disc 45, a rotary motor 44 and a rotary shaft 42, wherein the rotary motor 44 is installed at the bottom of the material taking port 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 loading disc 45; a plurality of partition plates 46 are circumferentially arranged on the material loading disc 45 in an array manner, a circular ring 43 corresponding to the partition plates 46 is convexly arranged on the upper surface of the material loading disc 45, and the circular ring 43 and the partition plates 46 divide the material loading disc 45 into a plurality of material loading spaces 39; one side of the loading disc 45 extends out of the lower die base 22. A waste material accommodating groove 47 with the shape corresponding to that of the waste material 29 is formed in each material loading space 39 on the material loading disc 45, so that the waste material can better and more stably fall into the waste material accommodating groove 47 and then is conveyed out by the material loading disc 45.

The upper part of one side of the discharging cavity 17 close to the material taking port 16 is provided with a photoelectric sensor transmitting end 25, and the lower part of one side of the discharging cavity 17 close to the material taking port 16 is provided with a photoelectric sensor receiving end 28 corresponding to the photoelectric sensor transmitting end 25. The photoelectric sensor transmitting end 25 and the photoelectric sensor receiving end 28 are both connected with the control device of the invention, and whether the waste is delivered to the position of the material taking port 16 or not is sensed through the mutual matching of the photoelectric sensor transmitting end 25 and the photoelectric sensor receiving end 28.

A guide feeding port 41 corresponding to the material loading disc 45 is formed at the position, communicated with the material taking port 16, on the right side of the discharging cavity 17, and the shape of the guide feeding port 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 and carry material 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 the negative pressure generated by the negative pressure air hole after the waste is contacted with the T-shaped buffer pressing block, and after the waste cutting knife is drawn back, the blocking pieces on the two sides are reset to the horizontally aligned position so as to block the waste from splashing, thereby avoiding the situation that the waste is blocked due to the waste returning to the waste blanking hole; subsequently, the negative pressure gas pocket stops output negative pressure, and elasticity through the shell fragment resets the effort and pops out the waste material to the direction of carrying material disc 45, and the waste material accessible carries material disc 45 in order outside being sent out the mould, and the external manipulator of deuterogamying takes away the waste material, carries out the manufacturing procedure that the environmental protection was recycled to some needs to the waste material, can directly take away the waste material piece by piece through the manipulator, and next manufacturing procedure is carried to rethread transport structure, promotes work efficiency.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a prevent that jump bits can pop out stamping die, includes die structure and lower die structure, go up die structure and include mounting panel (10), drift (26), waste material cutting knife (11), lower die structure includes lower mould backing plate (20), die holder (22), the upper surface of die holder (22) seted up with become die cavity (23) that drift (26) correspond, become die cavity (23) bottom seted up with waste material blanking hole (12) that waste material cutting knife (11) correspond, its characterized in that: a discharging cavity (17) is formed in the lower die seat (22) at a position corresponding to the waste blanking hole (12), the waste blanking hole (12) is communicated with the discharging cavity (17), and two opposite sides of the position, close to the discharging cavity (17), of the waste blanking hole (12) are elastically connected with blocking pieces (13); the top of the inner cavity wall of the discharging cavity (17) is close to the left side of the blocking piece (13), an elastic sheet (14) is fixedly connected with the top of the inner cavity wall of the discharging cavity (17) through a bolt (33), a containing cavity (34) is formed in the position, corresponding to the elastic sheet (14), of the bottom of the discharging cavity (17), a push-pull motor (38) is fixedly arranged on one side in the containing 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 abdicating groove (37) for enabling the telescopic shaft (36) to move left and right is formed between the discharging cavity (17) and the containing cavity (34), and the lower portion of the left side of the elastic sheet (14) is connected with a pull ring (35) for inserting the telescopic shaft (36); when the telescopic shaft (36) extends out to pull the elastic sheet (14) to move leftwards, the elastic sheet (14) is in a tightened state; when the telescopic shaft (36) is in a retracted state, the elastic sheet (14) is in a maximum opening state, and the lower part of the elastic sheet (14) extends to a position right below the waste material blanking hole (12) and close to the middle part; and a material taking port (16) communicated with the outside is formed in the right side of the discharging cavity (17).

2. The anti-scrap-bouncing and ejecting stamping die as claimed in claim 1, wherein: the blocking piece (13) is connected with the side wall of the waste material blanking hole (12) through a torsion spring (24); when the blanking device is in a normal state, the blocking pieces (13) on the two opposite sides are in a horizontal placing state, and when the blanking device is in a blanking state, the blocking pieces (13) on the two opposite sides are turned into the discharging cavity (17) under the downward pressing action force of the waste cutting knife (11).

3. The anti-scrap-bouncing and ejecting stamping die as claimed in claim 2, wherein: and a lower inclined plane (15) is formed at the upper part of the free end of the blocking sheet (13).

4. The anti-scrap-bouncing and ejecting stamping die as claimed in claim 1, wherein: the bottom of the discharging cavity (17) is located under the corresponding waste blanking hole (12) and is provided with a buffering pressure groove (31), a T-shaped buffering pressing block (18) is arranged in the buffering pressure groove (31), the bottom of the T-shaped buffering pressing block (18) penetrates through the bottom of the lower die holder (22), a buffering spring (30) which is in contact with the T-shaped buffering pressing block (18) in a propping mode is arranged in the buffering pressure groove (31), and when the buffering spring (30) is located at the maximum opening distance, the upper surface of the T-shaped buffering pressing block (18) is horizontally aligned with the bottom of the discharging cavity (17).

5. The anti-scrap-bouncing stamping die as claimed in claim 4, wherein: the upper surface of the T-shaped buffer pressing block (18) is provided with a negative pressure air hole (27), a pipeline (32) is arranged in the T-shaped buffer pressing block (18), one end of the pipeline (32) is connected with the negative pressure air hole (27), and the other end of the pipeline (32) extends out of the lower die holder (22) and is connected with a negative pressure air source.

6. The anti-scrap-bouncing and ejecting stamping die as claimed in claim 1, wherein: a rotary feeding structure is arranged at the material taking port (16); the rotary feeding structure comprises a loading disc (45), a rotary motor (44) and a rotary shaft (42), the rotary motor (44) is installed at the bottom of the material taking port (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 loading disc (45); a plurality of partition plates (46) are circumferentially arranged on the material carrying disc (45) in an array manner, a circular ring (43) corresponding to the partition plates (46) is convexly arranged on the upper surface of the material carrying disc (45), 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 loading disc (45) extends out of the lower die base (22).

7. The anti-scrap-bouncing stamping die as claimed in claim 6, wherein: waste material accommodating grooves (47) corresponding to the shape of the waste materials (29) are formed in the loading circular discs (45) and positioned in the loading spaces (39).

8. The anti-scrap-bouncing and ejecting stamping die as claimed in claim 1, wherein: discharge chamber (17) lean on to one side upper portion of getting material mouth (16) is installed photoelectric sensor transmitting terminal (25), discharge chamber (17) lean on to one side lower part of getting material mouth (16) install with photoelectric sensor receiving terminal (28) that photoelectric sensor transmitting terminal (25) correspond.

9. The anti-scrap-bouncing and ejecting stamping die as claimed in claim 7, wherein: the right side of the discharging cavity (17) is communicated with the material taking port (16) to form a guide feeding port (41) corresponding to the material loading disc (45), and the shape of the guide feeding port (41) corresponds to the shape of waste materials.