CN218700664U

CN218700664U - Plastic stamping die

Info

Publication number: CN218700664U
Application number: CN202222917521.6U
Authority: CN
Inventors: 陈文华; 张小伟
Original assignee: Guangdong Kenta Electric Power Industry Co ltd
Current assignee: Guangdong Kenta Electric Power Industry Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-03-24
Anticipated expiration: 2032-11-02

Abstract

The application discloses a plastic stamping die, and relates to the technical field of stamping dies; the application includes a work table; the lower die is arranged on the workbench, a stamping groove is formed in the upper surface of the lower die, and a cooling cavity corresponding to the stamping groove is formed in the lower die; the upper die is arranged on the workbench through a stamping frame, and a stamping head is arranged on the lower surface of the upper die; the water tank is arranged on the workbench; this application refrigerates through the water of semiconductor refrigeration piece in to the water tank, the water after the water pump will refrigerate is carried to the cooling chamber in through the raceway and is cooled off the die cavity, water after the cooling flows back to the water tank in from the back flow again, and the surplus cold of the aquatic of backward flow is utilized once more, cool down the refrigeration to the air in the external world, blow the cooling to the die head with the air after refrigerating again, the holistic setting of device, make to form the cold water circulation to the die cavity, carry out the forced air cooling to the die head, thereby improve the holistic cooling effect to the mould.

Description

Plastic stamping die

Technical Field

The application relates to the technical field of stamping dies, in particular to a plastic stamping die.

Background

At present, the shell of the automobile water pump is generally manufactured by stamping through a die, wherein stamping is a pressure processing method for applying pressure to a material by utilizing the die arranged on a press at room temperature to enable the material to be separated or plastically deformed so as to obtain a required part, and the stamping die is a special process device for processing the material into the part (or a semi-finished product) in cold stamping processing, and can generate heat in the stamping process so as to cause the temperature rise of a workpiece and the die, so that the workpiece and the die need to be cooled, the phenomenon that the performance of the workpiece is influenced and the die is damaged due to high temperature is prevented, the service life of the die is shortened, and the quality of the workpiece is reduced.

Referring to the existing chinese patent with publication number CN209318585U, the stamping die with cooling function is disclosed, which comprises an upper die plate, a lower die plate and a die body, wherein the lower die plate is fixedly mounted at the top of the die body, a cooling cavity is arranged on the top surface of the die body, a first cooling channel is arranged on the top surface of the die body outside the cooling cavity, the first cooling channel is communicated with the cooling cavity through four groups of first flow guide channels, a second cooling channel is arranged on the top surface of the die body outside the first cooling channel, and the second flow guide channels are communicated with the first cooling channel.

The stamping die with the cooling function still has some defects, only the cooling cavity is arranged, the recycling of cooling water cannot be realized, and the natural cooling speed of the cooling liquid is low, so that the stamping die is not beneficial to continuous work.

SUMMERY OF THE UTILITY MODEL

The purpose of this application lies in: for solving the current problem low to stamping die cooling efficiency, this application provides plastic stamping die.

The following technical scheme is specifically adopted in order to achieve the purpose:

plastic stamping die includes: a work table; the lower die is arranged on the workbench, the upper surface of the lower die is provided with a stamping groove, and a cooling cavity corresponding to the stamping groove is formed in the lower die; the upper die is arranged on the workbench through a stamping frame, and a stamping head is arranged on the lower surface of the upper die; the water tank is arranged on the workbench, a semiconductor refrigerating sheet is arranged on the water tank, the water tank is communicated with the cooling cavity and is provided with a water delivery pipe and a return pipe, the workbench is provided with a water pump communicated with the water delivery pipe, the workbench is provided with a cold exchange box communicated with the return pipe, and one side of the cold exchange box is provided with a vent; and one end of the sleeve is communicated with the cold exchange box, the other end of the sleeve is communicated with a corrugated hose, one end of the corrugated hose is communicated with a spray head piece which is arranged on the upper die and provided with a nozzle facing the stamping head, and a suction fan is arranged in the sleeve.

Further, a sleeve surrounding the stamping groove is arranged in the cooling cavity, a spiral plate is arranged between the inner wall of the sleeve and the inner wall of the cooling cavity, and one end, far away from the water tank, of the water delivery pipe is communicated with the sleeve.

Furthermore, the sleeve and the ventilation opening are arranged oppositely, and a flow guide net corresponding to the communicating opening of the return pipe is arranged in the cold exchange box.

Furthermore, a dust screen is arranged in the ventilation opening.

Further, trade the last intercommunication of cold box and have the installation pipe, be provided with the adsorption plate in the installation pipe, the sleeve pipe is kept away from the one end of bellows rotates the cover and is equipped with the connecting pipe, the connecting pipe with installation pipe threaded connection.

Further, the nozzle piece comprises a ring pipe and a plurality of nozzles, wherein: the ring pipe is arranged on the upper die and surrounds the stamping head, one end, far away from the cold exchange box, of the corrugated hose is communicated with the ring pipe, one ends of the spray pipes are communicated with the ring pipe and distributed in an annular array mode, and the other ends of the spray pipes face the stamping head.

Furthermore, one end of the corrugated hose, which is far away from the cold exchange box, is communicated with a hard pipe, and the free end of the hard pipe is communicated with the ring pipe.

The beneficial effects of this application are as follows: this application refrigerates through the water of semiconductor refrigeration piece in to the water tank, the water after the water pump will refrigerate is carried to the cooling chamber in through the raceway and is cooled off the die cavity, water after the cooling flows back to the water tank in from the back flow again, and surplus cold reuse of the aquatic of backward flow, cool down the refrigeration to external air, blow the cooling to the die head with the air after refrigerating again, the holistic setting of device, make to form the cold water circulation to the die cavity, carry out the forced air cooling to the die head, thereby improve the cooling effect to the mould is holistic.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a perspective sectional view of the present application;

FIG. 3 is a plan elevation view of the present application;

FIG. 4 is an enlarged view taken at A of FIG. 2 of the present application;

FIG. 5 is an enlarged view of FIG. 2 of the present application at B;

FIG. 6 is an enlarged view taken at C of FIG. 3 of the present application;

reference numerals: 1. a work table; 2. a lower die; 3. punching a groove; 4. a cooling chamber; 5. an upper die; 6. stamping a head; 7. a water tank; 8. a semiconductor refrigeration sheet; 9. a water delivery pipe; 10. a return pipe; 11. a water pump; 12. changing a cold box; 13. a vent; 14. a sleeve; 15. A corrugated hose; 16. a nozzle member; 17. an exhaust fan; 18. a sleeve; 19. a spiral plate; 20. a flow guide net; 21. a dust screen; 22. installing a pipe; 23. an adsorption plate; 24. a connecting pipe; 25. a hard tube; 1601. a loop pipe; 1602. and (4) a spray pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

As shown in fig. 1, fig. 2, fig. 3 and fig. 5, an embodiment of the present application provides a plastic stamping die, including: a work table 1; the working table 1 is provided with an upper layer and a lower layer, the lower die 2 is arranged on the working table 1, the upper surface of the lower die 2 is provided with a stamping groove 3, and a cooling cavity 4 corresponding to the stamping groove 3 is formed in the lower die 2; an upper die 5 disposed on the table 1 through a press frame, the lower surface of the upper die 5 being provided with a press head 6, wherein a power member, such as a hydraulic rod or the like, for driving the upper die 5 is not shown in the structural view; the lower die 2 and the upper die 5 are both arranged on the upper layer of the workbench 1, the water tank 7 is arranged on the workbench 1, the semiconductor refrigerating sheet 8 is arranged on the water tank 7, the water tank 7 is arranged on the lower layer of the workbench 1, the refrigerating end of the semiconductor refrigerating sheet 8 is positioned in the water tank 7, the heat exchange end of the semiconductor refrigerating sheet 8 is positioned outside the water tank 7, the water tank 7 is communicated with the cooling cavity 4 and is provided with a water delivery pipe 9 and a return pipe 10, the workbench 1 is provided with a water pump 11 communicated with the water delivery pipe 9, the workbench 1 is provided with a cold exchange box 12 communicated with the return pipe 10, and one side of the cold exchange box 12 is provided with a vent 13; a sleeve 14, one end of which is communicated with the cold exchanging box 12 and the other end of which is communicated with a corrugated hose 15, one end of the corrugated hose 15 is communicated with a nozzle piece 16 which is arranged on the upper die 5 and the nozzle of which faces to the punching head 6, an exhaust fan 17 is arranged in the sleeve 14, when punching processing is carried out, water is added into the water tank 7, the semiconductor refrigerating sheet 8 refrigerates the water, after the water is refrigerated, a water pump 11 does work, the refrigerated water is conveyed into the cooling cavity 4 through a water conveying pipe 9 so as to wrap the punching groove 3, the refrigerated water cools the punching groove 3, the high temperature generated when the workpiece is rubbed with the punching groove 3 is reduced, the service life of the lower die 2 is prolonged, the water after heat exchange in the cooling cavity 4 flows back into the water tank 7 through a return pipe 10, cold water circulation is formed, when the water in the cooling cavity 4 flows back, the cold exchanging box 12 flows through the water, and the water is refrigerated through the semiconductor refrigerating sheet 8, therefore, after the cold water cools the stamping groove 3, the temperature of the stamping groove cannot be rapidly raised and still has a certain low temperature, so that the temperature in the heat exchange box 12 has a certain low temperature, the outside air enters from the vent 13 and is influenced by the temperature in the heat exchange box 12 and the cold water, the temperature of the air is reduced, the exhaust fan 17 works to suck the air with the reduced temperature into the corrugated hose 15 and blow the stamping head 6 through the nozzle piece 16, so as to cool the stamping head 6, so that the stamping head 6 plays a role in cooling the workpiece when stamping the next workpiece, the next workpiece is conveniently demoulded, the integral structure of the device forms a cooling cycle for the stamping groove 3, so that the high temperature caused by continuous stamping of the stamping groove 3 is effectively reduced, meanwhile, the cold water is utilized to cool the outside air, and the cooled gas is used for blowing and cooling the stamping head 6, so that the integral cooling effect of the die is improved, and the integral continuous work of the stamping die is facilitated.

As shown in fig. 4, in some embodiments, a sleeve 18 surrounding the stamping groove 3 is disposed in the cooling cavity 4, a spiral plate 19 is disposed between an inner wall of the sleeve 18 and an inner wall of the cooling cavity 4, one end of the water pipe 9, which is far away from the water tank 7, is communicated with the sleeve 18, and through the arrangement of the sleeve 18 and the spiral plate 19, the refrigerated water is conveyed into the sleeve 18 and circulates spirally along the spiral plate 19, so that the refrigerated water directly showers the inner wall of the cooling cavity 4, which is close to the stamping groove 3, and the cooling cavity 4 does not need to be filled with cold water, thereby improving the cooling efficiency of the stamping groove 3.

As shown in fig. 5, in some embodiments, the sleeve 14 is disposed opposite to the ventilation opening 13, a flow guiding net 20 corresponding to a communication opening of the return pipe 10 is disposed in the cooling unit 12, preferably, the return pipe 10 is communicated with upper and lower ends of the cooling unit 12, a conical shell communicated with a communication opening of the return pipe 10 is disposed at an inner top of the cooling unit 12, the flow guiding net 20 is communicated with a conical tip of the conical shell, when cold water in the cooling chamber 4 flows back, the cold water flows into the conical shell first, and is influenced by gradual closing of the conical shell tip, and water flow is dispersed under a large condition and flows downward along the flow guiding net 20, so as to form a water curtain state, because the sleeve 14 is disposed opposite to the ventilation opening 13, when air entering the cooling unit 12 from the outside is pumped by the pumping fan 17, the air must first pass through the water curtain formed by the cold water, so that the air passes through the water, and is cooled by the cold water, so that the air is cooled, and the air is then pumped by the pumping fan 17 to cool the ram 6, so as to improve the cooling effect of the ram 6.

As shown in fig. 5, in some embodiments, a dust screen 21 is disposed in the ventilation opening 13, and the dust screen 21 is disposed to filter and intercept dust and impurities in the air, so as to prevent the dust and impurities from entering the cold water through the cold exchange box 12 and polluting the cold water.

As shown in fig. 5, in some embodiments, an installation tube 22 is communicated with the cooling exchanger 12, an adsorption plate 23 is disposed in the installation tube 22, a connection tube 24 is rotatably sleeved at one end of the sleeve 14 away from the corrugated hose 15, the connection tube 24 is in threaded connection with the installation tube 22, the air passes through the air, and contains certain moisture, the moisture in the air is adsorbed by the adsorption plate 23, so that the moisture in the air is prevented from being sprayed onto the suction fan 17, which causes an influence on the normal operation of the suction fan 17, the adsorption plate 23 has certain moisture after being adsorbed for a long time, and the adsorption plate 23 is in threaded connection with the installation tube 22, so that the adsorption plate 23 can be conveniently removed and replaced.

As shown in fig. 6, in some embodiments, spray head piece 16 includes collar 1601 and a plurality of spray tubes 1602, wherein: ring pipe 1601 sets up on last mould 5 and encircles stamping head 6, corrugated pipe 15 is kept away from one end and ring pipe 1601 intercommunication that trade cold box 12, the one end of a plurality of spray tube 1602 all communicates on ring pipe 1601 and is the annular array and distributes, the other end of a plurality of spray tube 1602 all faces towards stamping head 6, the air that extraction fan 17 will be external passes through corrugated pipe 15 and pumps in ring pipe 1601, a plurality of spray tube 1602 is spout again, make and to blow the cooling to stamping head 6's whole body, with the cooling effect of improvement stamping head 6, preferably, the opposite side of going up mould 2 and bed die 5 all is constructed with the caulking groove, ring pipe 1601 is located the caulking groove of last mould 5, setting through two caulking grooves, make ring pipe 1601 and spray tube 1602 can not influence the normal punching press compound die of last mould 5 and bed die 2.

As shown in fig. 2 and 3, in some embodiments, one end of the corrugated hose 15, which is far away from the cold exchange box 12, is communicated with a hard pipe 25, and a free end of the hard pipe 25 is communicated with the ring pipe 1601, and the corrugated hose 15 is a hose and can stretch and deform to meet the requirements of mold opening and mold closing of the upper mold 5 and the lower mold 2, but because the corrugated hose has a certain length, in order to avoid bending deformation due to gravity, the corrugated hose leans between the upper mold 5 and the lower mold 2 inwards in the mold closing process, so that the mold closing of the upper mold 5 and the lower mold 2 is affected, and this point can be effectively avoided by the arranged hard pipe 25, so that the contraction of the corrugated hose 15 does not cause interference to the mold, thereby facilitating the stamping process.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Plastic stamping die, its characterized in that includes:

a table (1);

the lower die (2) is arranged on the workbench (1), a stamping groove (3) is formed in the upper surface of the lower die (2), and a cooling cavity (4) corresponding to the stamping groove (3) is formed in the lower die (2);

the upper die (5) is arranged on the workbench (1) through a stamping frame, and a stamping head (6) is arranged on the lower surface of the upper die (5);

the cooling device comprises a workbench (1), a water tank (7) arranged on the workbench (1), a semiconductor refrigerating sheet (8) arranged on the water tank (7), a water pipe (9) and a return pipe (10) communicated with the water tank (7) and the cooling cavity (4), a water pump (11) communicated with the water pipe (9) arranged on the workbench (1), a cooling exchange box (12) communicated with the return pipe (10) arranged on the workbench (1), and a ventilation opening (13) arranged on one side of the cooling exchange box (12);

one end of the sleeve (14) is communicated with the cold exchange box (12), the other end of the sleeve is communicated with a corrugated hose (15), one end of the corrugated hose (15) is communicated with a spray head piece (16) which is arranged on the upper die (5) and a spray opening of which faces the stamping head (6), and an exhaust fan (17) is arranged in the sleeve (14).

2. The plastic stamping die as claimed in claim 1, wherein a sleeve (18) surrounding the stamping groove (3) is disposed in the cooling cavity (4), a spiral plate (19) is disposed between an inner wall of the sleeve (18) and an inner wall of the cooling cavity (4), and one end of the water pipe (9) away from the water tank (7) is communicated with the sleeve (18).

3. The plastic stamping die as claimed in claim 1, wherein the sleeve (14) is disposed opposite to the vent (13), and a flow guide net (20) corresponding to a communication port of the return pipe (10) is disposed in the cooling box (12).

4. The plastic stamping die as defined in claim 1, wherein a dust screen (21) is disposed in the vent (13).

5. The plastic stamping die as claimed in claim 1, wherein the cooling box (12) is connected with an installation tube (22), an absorption plate (23) is disposed in the installation tube (22), a connection tube (24) is rotatably sleeved on one end of the sleeve (14) far away from the corrugated hose (15), and the connection tube (24) is in threaded connection with the installation tube (22).

6. The plastic stamping die of claim 1, wherein the nozzle member (16) comprises a collar (1601) and a plurality of nozzles (1602), wherein:

the ring pipe (1601) is arranged on the upper die (5) and surrounds the stamping head (6), one end, far away from the cold exchange box (12), of the corrugated hose (15) is communicated with the ring pipe (1601), one ends of the spray pipes (1602) are communicated with the ring pipe (1601) and distributed in an annular array, and the other ends of the spray pipes (1602) face the stamping head (6).

7. The plastic stamping die as claimed in claim 6, wherein an end of the corrugated hose (15) away from the cooling box (12) is connected to a hard pipe (25), and a free end of the hard pipe (25) is connected to the ring pipe (1601).