CN214133373U

CN214133373U - Hot extrusion die of large-section die core

Info

Publication number: CN214133373U
Application number: CN202023111924.9U
Authority: CN
Inventors: 张理罡
Original assignee: Jiangsu Jiangshun Precision Technology Group Co ltd
Current assignee: Jiangsu Jiangshun Precision Technology Group Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-09-07
Anticipated expiration: 2030-12-22

Abstract

The utility model relates to the technical field of aluminum profile hot extrusion dies, in particular to a hot extrusion die of a large-section die core, which comprises a cylindrical male die and a cylindrical female die, wherein the male die and the female die are fixedly connected; the middle part of the male die is fixedly provided with a feeding milling sink along the thickness direction of the male die, the periphery of the feeding milling sink is fixedly provided with a plurality of shunting bridges along the thickness direction of the male die, shunting holes are formed in gaps among the shunting bridges, and one side of the male die, which is close to the female die, is fixedly connected with a die core; and the female die is sequentially provided with a discharge hole, a discharge blank cutter and a female die cavity in a penetrating manner along the thickness direction of the female die. The utility model discloses in, through the design of a plurality of reposition of redundant personnel bridges and reposition of redundant personnel hole, realize the flow balance of the aluminium body, inner structure and mold core bear pressure evenly, improve the quality behind the big section bar extrusion ejection of compact, the utility model discloses rational in infrastructure, the effectual and reasonable structure of section bar shaping makes its life improve greatly, and the practicality is strong.

Description

Hot extrusion die of large-section die core

Technical Field

The utility model relates to an aluminium alloy hot extrusion die technical field especially relates to a hot extrusion die of big section mold core.

Background

Hot extrusion is extrusion by heating a metal material to a hot forging temperature, that is, extrusion by heating a billet to a temperature higher than the recrystallization temperature of the metal before extrusion. Hot extrusion can not only form nonferrous metals and their alloys, low and medium carbon steels, etc. with good plasticity and relatively low strength, but also form high carbon and high alloy steels with relatively high strength, such as special structural stainless steel, high speed tool steel, heat resistant steel, etc. Since the billet must be heated to the hot forging temperature for extrusion. Generally, after a machine part is hot-extruded, machining such as cutting is performed to improve the dimensional accuracy and surface quality of the part.

The internal structure of the current large-section bar mold core is unreasonable, so that the thickness of the extruded section bar is uneven, the mold core is easy to scrap when the stress is uneven, and the application provides the hot extrusion mold of the large-section mold core for solving the problems.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a hot extrusion die of big section mold core has the characteristics that the aluminium body is even in the mould, the mold core atress is even.

(II) technical scheme

In order to solve the problems, the utility model provides a hot extrusion die of a large-section die core, which comprises a cylindrical male die and a cylindrical female die, wherein the male die and the female die are fixedly connected;

the middle part of the male die is fixedly provided with a feeding milling sink along the thickness direction of the male die, the periphery of the feeding milling sink is fixedly provided with a plurality of shunting bridges along the thickness direction of the male die, shunting holes are formed in gaps among the shunting bridges, and one side of the male die, which is close to the female die, is fixedly connected with a die core;

the female die is provided with a discharge hole, a discharge blank cutter and a female die cavity along the thickness direction of the female die in a penetrating mode, the discharge hole, the discharge blank cutter and the female die cavity are communicated with each other, a welding chamber is arranged on one side, close to the male die, of the female die, and the welding chamber is communicated with the female die cavity.

Preferably, the number of the shunting holes is four.

Preferably, the concave die cavity is matched with the mold core in shape.

Preferably, an assembly groove is formed in one side, close to the male die, of the female die, and one end of the male die stretches into the assembly groove to be pre-fixed.

Preferably, the male die and the female die are fixed through bolts.

Preferably, the mold core is fixed to the male mold by bolts.

The above technical scheme of the utility model has following profitable technological effect:

the utility model discloses in, through the design of a plurality of reposition of redundant personnel bridges and reposition of redundant personnel hole, realize the flow balance of the aluminium body, inner structure and mold core bear pressure evenly, improve the quality behind the big section bar extrusion ejection of compact, the utility model discloses rational in infrastructure, the effectual and reasonable structure of section bar shaping makes its life improve greatly, and the practicality is strong.

Drawings

FIG. 1 is a schematic view of the left side structure of the present invention;

FIG. 2 is a schematic view of the right side structure of the present invention;

FIG. 3 is a structural section view of the female mold of the present invention;

wherein: 101. a male die; 102. milling and sinking the feed; 103. a shunt bridge; 104. a shunt hole; 105. a mold core; 201. a female die; 202. a discharge hole; 203. discharging and blanking; 204. a female die cavity; 205. a welding chamber; 206. and assembling the groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the hot extrusion mold of the large-section mold core provided by the present invention comprises a cylindrical male mold 101 and a cylindrical female mold 201, wherein the male mold 101 and the female mold 201 are fixedly connected by bolts;

in the embodiment, the middle part of the male die 101 is fixedly provided with a feeding milling sink 102 along the thickness direction thereof, the periphery of the feeding milling sink 102 is fixedly provided with a plurality of shunting bridges 103 along the thickness direction thereof, four shunting holes 104 are formed by utilizing gaps between the shunting bridges 103, an aluminum body can be effectively shunted and can be uniformly shunted, and one side of the male die 101 close to the female die 201 is fixedly connected with a die core 105 through a bolt for shaping the aluminum body;

in this embodiment, the discharging hole 202, the discharging idle cutter 203 and the die cavity 204 sequentially penetrate through the die 201 along the thickness direction of the die 201, the discharging hole 202, the discharging idle cutter 203 and the die cavity 204 are communicated with each other, a welding chamber 205 is formed in one side of the die 201 close to the male die 101 and used for welding an aluminum body, the welding chamber 205 is communicated with the die cavity 204, the die cavity 204 is matched with the mold core 105 in shape, an assembling groove 206 is formed in one side of the die 201 close to the male die 101, when the male die 101 needs to be assembled on the die 201, one end of the male die 101 can be directly aligned to the assembling groove 206, pre-positioning of the male die 101 and the die 201 can be achieved, and further fixing by bolts is facilitated.

The working principle is as follows: the utility model discloses in, cooperate the bolt earlier and assemble the mold core 105 to terrace die 101 on, measure its assembly precision, the back is aimed at the assembly groove 206 of die 201 with the one end of terrace die 101, can realize the prepositioning of terrace die 101 and die 201, then utilize the bolt to further fasten terrace die 101 and die 201, the hot extrusion in-process, aluminium ingot after the heating is separated by reposition of redundant personnel bridge 103 and is got into terrace die 101 respectively through reposition of redundant personnel hole 104 in, get into the seam room 205 seam after the moulding of mold core 105 again, at last through die cavity 204, ejection of compact vacant sword 203 and discharge opening 202 discharge, accomplish the extrusion process.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The hot extrusion die of the large-section die core is characterized by comprising a cylindrical male die (101) and a cylindrical female die (201), wherein the male die (101) and the female die (201) are fixedly connected;

the middle part of the male die (101) is fixedly provided with a feeding milling sink (102) along the thickness direction, the periphery of the feeding milling sink (102) is fixedly provided with a plurality of shunting bridges (103) along the thickness direction, shunting holes (104) are formed in gaps among the shunting bridges (103), and one side of the male die (101) close to the female die (201) is fixedly connected with a die core (105);

the die is characterized in that a discharge hole (202), a discharge blank cutter (203) and a die cavity (204) are sequentially arranged on the die (201) in a penetrating mode along the thickness direction of the die, the discharge hole (202), the discharge blank cutter (203) and the die cavity (204) are communicated with one another, a welding chamber (205) is formed in one side, close to the male die (101), of the die (201), and the welding chamber (205) is communicated with the die cavity (204).

2. The die of claim 1, wherein the number of the shunting holes (104) is four.

3. A hot extrusion die with a large cross-section core as claimed in claim 1, wherein said female cavity (204) is adapted to the shape of said core (105).

4. The hot extrusion die of the large-section die core as claimed in claim 1, wherein a fitting groove (206) is formed on one side of the female die (201) close to the male die (101) for one end of the male die (101) to be inserted and pre-fixed.

5. The hot extrusion die of a large-section mold core according to claim 1, wherein the male die (101) and the female die (201) are fixed by bolts.

6. A hot extrusion die with a large cross-section core as claimed in claim 1, wherein said core (105) is fixed to said punch (101) by bolts.