CN216137872U

CN216137872U - Miniature extrusion die

Info

Publication number: CN216137872U
Application number: CN202121957621.0U
Authority: CN
Inventors: 王彦东; 赵志国; 史丹丹; 姜林; 钟娟; 申晓丽
Original assignee: Hangxin Material Technology Co ltd
Current assignee: Hangxin Material Technology Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-29
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to a miniature extrusion die, which belongs to the technical field of extrusion dies and comprises a base, a discharge barrel, an extrusion female die, an extrusion barrel, a composite die and an extrusion anvil head, wherein a fixed groove is formed in the inner wall of one end, close to the extrusion barrel, of the discharge barrel, the extrusion female die is installed in the fixed groove, the extrusion female die is provided with a through first forming opening, the composite die is connected with the inner wall of the extrusion barrel in a sliding mode, the length of the composite die is larger than that of the extrusion barrel, a second forming opening is formed in one end, close to the extrusion barrel, of the composite die, the axial section of the extrusion anvil head is in a cross shape, and one end of the extrusion anvil head is inserted into the inner cavity of the composite die. During composite extrusion forming, a blank is placed in the discharge barrel, the composite die is placed in the discharge barrel, the extrusion anvil head pushes the composite die to move towards one end of the extrusion female die, and the blank is formed through the first forming opening and the second forming opening under the extrusion of the composite die.

Description

Miniature extrusion die

Technical Field

The utility model relates to the technical field of extrusion dies, in particular to a miniature extrusion die.

Background

Extrusion is a press working method in which a blank placed in a female die is pressed by a punch or a male die to cause plastic flow, thereby obtaining a product corresponding to the shape of a hole or a male-female die of a die. Extrusion can be divided into hot extrusion, cold extrusion and warm extrusion according to extrusion temperature. Hot extrusion when the extrusion temperature is above the recrystallization temperature of the material, cold extrusion at room temperature, warm extrusion above room temperature but not above the recrystallization temperature. The flow direction of the extrusion material can be divided into forward extrusion, backward extrusion and composite extrusion, wherein the forward extrusion means that the flow direction of the material is consistent with the pressure application direction, the backward extrusion means that the flow direction of the material is opposite to the pressure application direction, and the composite extrusion means that the material flows in the forward direction and the backward direction simultaneously. In the prior art, the structure of the extrusion die is complex, the size is large, the research cost for a laboratory is high, and the laboratory is required to have a large enough space for accommodating. We propose a micro extrusion die for this purpose.

SUMMERY OF THE UTILITY MODEL

The utility model provides a micro extrusion die aiming at the problems in the prior art, which is realized by the following technical scheme:

a micro extrusion die comprises a base, a discharge barrel, an extrusion female die, an extrusion barrel, a compound die and an extrusion anvil head which are coaxially arranged, the upper end surface of the base is fixedly connected with a first pin column, the discharging barrel is fixedly connected with the base through the first pin column, the upper end surface of the discharging barrel is fixedly connected with a second pin column, the extrusion barrel is fixedly connected with the discharging barrel through the second pin column, a fixed groove is arranged on the inner wall of one end of the discharging barrel close to the extruding barrel, the extruding female die is arranged in the fixed groove, the extrusion female die is provided with a first through molding opening, the compound die is connected with the inner wall of the extrusion container in a sliding way, the length of the compound die is larger than that of the extrusion container, one end of the compound die close to the extrusion container is provided with a second forming opening, the axial section of the extrusion anvil head is in a cross shape, and one end of the extrusion anvil head is inserted into the inner cavity of the composite die.

The utility model is further configured to: a first thermocouple channel is formed in the side wall of the discharging barrel.

The utility model is further configured to: and an extrusion cushion block is connected in the inner cavity of the extrusion container in a sliding manner.

The utility model is further configured to: and an extrusion cushion block is arranged in the extrusion cylinder, and one end of the extrusion cushion block is in contact with the end face of the extrusion female die.

The utility model is further configured to: and a second thermocouple channel is formed in the side wall of the extrusion container and is positioned at one end, far away from the second forming opening, of the extrusion container.

In conclusion, the beneficial technical effects of the utility model are as follows:

through the dismantled setting of extrusion die, extrusion hammering block head and extrusion cushion, can carry out simple adjustment on miniature extrusion die, realize just extrusion, backward extrusion and co-extrusion, can not only realize multiple forming means, still reduce the volume of mould, be applicable to the laboratory and use.

Drawings

FIG. 1 is a schematic structural diagram showing a first embodiment;

FIG. 2 is a schematic structural view for showing a second embodiment;

FIG. 3 is a schematic structural view for showing a third embodiment;

fig. 4 is a schematic structural diagram for showing a fourth embodiment.

Reference numerals: 1. a base; 2. a charging barrel; 3. extruding the female die; 4. an extrusion cylinder; 5. compounding the die; 6. extruding the anvil head; 7. a first pin; 8. a second pin; 9. fixing grooves; 10. a first molding opening; 11. a second forming port; 12; a first thermocouple channel; 13. extruding the cushion block; 14. a second thermocouple channel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example one

As shown in figure 1, the micro extrusion die disclosed by the utility model comprises a base 1, a discharge barrel 2, an extrusion die 3, an extrusion barrel 4, a compound die 5 and an extrusion anvil 6 which are coaxially arranged, wherein a first pin 7 is fixedly connected with the upper end surface of the base 1, the discharge barrel 2 is fixedly connected with the base 1 through the first pin 7, a second pin 8 is fixedly connected with the upper end surface of the discharge barrel 2, the extrusion barrel 4 is fixedly connected with the discharge barrel 2 through the second pin 8, a fixing groove 9 is arranged on the inner wall of one end of the discharge barrel 2 close to the extrusion barrel 4, the extrusion die 3 is arranged in the fixing groove 9, the extrusion die 3 is provided with a first through molding opening 10, the compound die 5 is connected with the inner wall of the extrusion barrel 4 in a sliding manner, the length of the compound die 5 is greater than that of the extrusion barrel 4, a second molding opening 11 is arranged on one end of the compound die 5 close to the extrusion barrel 4, and the axial section of the extrusion anvil 6 is in a cross shape, one end of the extrusion anvil 6 is inserted into the inner cavity of the compound die 5. During composite extrusion molding, a blank is placed in the discharge barrel 2, one end of the first molding opening 10 of the composite die 5 is placed in the discharge barrel 2, one end of the extrusion anvil 6 is inserted into an inner cavity of the composite die 5, the composite die 5 is pushed by the extrusion anvil 6 to move towards one end of the extrusion female die 3, and the blank is extruded and molded through the first molding opening 10 and the second molding opening 11 under the extrusion of the composite die 5. A first thermocouple channel 12 is arranged on the side wall of the discharging barrel 2. When the forming temperature needs to be controlled, a thermocouple is connected to the blank through the first thermocouple channel 12 and the first forming port 10 to heat the blank.

Example two

A micro extrusion die is different from the first embodiment in that an extrusion cushion block 13 is connected in a sliding way in an inner cavity of a extrusion container 4 as shown in figure 2. During forming, a blank is placed in the discharging barrel 2, one end of the blank is in contact with the end face of the extrusion female die 3, the extrusion cushion block 13 is placed in the extrusion barrel 4, the compound die 5 is placed in the extrusion barrel 4, the extrusion cushion block 13 is pushed through the compound die 5 and the extrusion anvil head 6, and the blank is formed through the first forming port 10 to realize forward extrusion forming.

EXAMPLE III

A micro extrusion die is different from the first embodiment in that a extrusion cushion block 13 is arranged in an extrusion cylinder 4, and one end of the extrusion cushion block 13 is in contact with the end face of an extrusion female die 3, as shown in figure 3. During forming, the extrusion cushion block 13 is placed in the discharge barrel 2, one end of the extrusion cushion block 13 is in contact with the end face of the extrusion female die 3 to block the first forming opening 10, then the blank is placed in the discharge barrel 2, one end of the blank is in contact with the end face of the extrusion cushion block 13, finally the compound die 5 is placed in the extrusion barrel 4 and pushed to one side of the blank, and the blank is formed through the second forming opening 11 to realize reverse extrusion forming. And a second thermocouple channel 14 is formed in the side wall of the extrusion container 4, and the second thermocouple channel 14 is located at one end, far away from the second forming opening 11, of the extrusion container 4. When the molding temperature needs to be controlled during the reverse extrusion molding, the thermocouple is connected to the blank through the second thermocouple channel 14 and the second molding opening 11 to heat the blank.

Example four

A micro extrusion die, the difference between the embodiment and the third embodiment is that as shown in figure 4, when the extrusion die 3 is taken out, the extrusion cushion block 13 is placed in the fixing groove 9 to realize the extrusion molding.

Claims

1. A micro extrusion die is characterized by comprising a base (1), a discharge barrel (2), an extrusion female die (3), an extrusion barrel (4), a compound die (5) and an extrusion anvil head (6) which are coaxially arranged, wherein the upper end surface of the base (1) is fixedly connected with a first pin column (7), the discharge barrel (2) is fixedly connected with the base (1) through the first pin column (7), the upper end surface of the discharge barrel (2) is fixedly connected with a second pin column (8), the extrusion barrel (4) is fixedly connected with the discharge barrel (2) through the second pin column (8), a fixing groove (9) is formed in the inner wall of one end, close to the extrusion barrel (4), of the discharge barrel (2), the extrusion female die (3) is installed in the fixing groove (9), the extrusion female die (3) is provided with a through first forming opening (10), the compound die (5) is connected with the inner wall of the extrusion barrel (4) in a sliding manner, the length of the composite die (5) is greater than that of the extrusion container (4), a second forming opening (11) is formed in one end, close to the extrusion container (4), of the composite die (5), the axial section of the extrusion anvil head (6) is in a cross shape, and one end of the extrusion anvil head (6) is inserted into the inner cavity of the composite die (5).

2. The micro extrusion die as claimed in claim 1, wherein the side wall of the discharging barrel (2) is provided with a first thermocouple channel (12).

3. A micro extrusion die according to claim 2, wherein a extrusion pad (13) is slidably connected to the inner cavity of the extrusion container (4).

4. The micro extrusion die as claimed in claim 1, wherein the extrusion cylinder (4) is provided with an extrusion cushion block (13), and one end of the extrusion cushion block (13) is in end surface contact with the extrusion female die (3).

5. The micro extrusion die as claimed in claim 4, wherein the side wall of the extrusion cylinder (4) is provided with a second thermocouple channel (14), and the second thermocouple channel (14) is located at one end of the extrusion cylinder (4) far away from the second forming opening (11).