CN211679347U

CN211679347U - Tubular aluminum profile extrusion die

Info

Publication number: CN211679347U
Application number: CN201921283623.9U
Authority: CN
Inventors: 冯爱民; 蒋运相
Original assignee: Suzhou Huatai Mould Manufacturing Co ltd
Current assignee: Suzhou Huatai Mould Manufacturing Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-10-16
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a tubulose aluminium alloy extrusion die, last mould (1) and lower mould (2) including interconnect, it puts and is equipped with mold core (6) to go up mould (1) central point, it is equipped with a plurality of edges to go up mould (1) pan feeding hole (4) that mold core (6) circumference distributes, be equipped with shunting bridge (5) of corresponding number between pan feeding hole (4), pan feeding hole (4) are toper pan feeding hole, pan feeding hole (4) are including narrow portion (41) and the keeping away from of being close to mold core (6) department wide portion (42) of mold core (6). The utility model discloses extrusion die is through setting up a plurality of pan feeding holes along mold core evenly distributed on last mould, and the pan feeding hole adopts the bell mouth for the past reposition of redundant personnel bridge blind spot that the aluminium material can be better flows, and balanced mould velocity of flow improves the degree of welding.

Description

Tubular aluminum profile extrusion die

Technical Field

The utility model relates to an aluminium alloy mould technical field, in particular to tubulose aluminium alloy extrusion die.

Background

The aluminum profile extrusion refers to that an aluminum material high-temperature casting blank is introduced into a special die, and the aluminum material is extruded from a cavity at a given speed under the action of strong pressure provided by an extruder, so that the aluminum alloy extruded profile with a required shape, size and certain mechanical property is obtained. When the die is designed, the arrangement and the structure of the feeding holes determine the circulation and the welding quality of the aluminum material, so that how to design the feeding holes of the aluminum profile extrusion die is the most important factor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned defect among the prior art, provide a tubulose aluminium alloy extrusion die, the aluminium material has good circulation, and the section bar seam is of high quality.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the utility model provides a tubulose aluminium alloy extrusion die, includes interconnect's last mould and lower mould, it puts and is equipped with the mold core to go up mould central point, it is equipped with a plurality of edges to go up the mould the pan feeding hole that mold core circumference distributes, be equipped with the reposition of redundant personnel bridge that corresponds the figure between the pan feeding hole, the pan feeding hole is toper pan feeding hole, the pan feeding hole is including narrow portion and the keeping away from of being close to mold core department the wide portion of mold core.

Furthermore, the utility model discloses still provide following subsidiary technical scheme: the number of the feeding holes is five.

The lower die comprises a welding chamber, and the feeding hole is communicated with the welding chamber.

The lower die further comprises a cavity, the die core extends into the cavity, the cavity is provided with a convex ring protruding inwards, and the die core extends into the cavity and a gap for forming a formed aluminum profile is formed between the convex ring.

The lower die further comprises a profile outlet, and the cavity is communicated between the welding chamber and the profile outlet.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses extrusion die is through setting up a plurality of pan feeding holes along mold core circumference evenly distributed on last mould, and the pan feeding hole adopts the bell mouth for the past reposition of redundant personnel bridge blind spot that the aluminium material can be better flows, and balanced mould velocity of flow improves the degree of welding.

2. The utility model discloses extrusion die adopts five pan feeding holes along mold core circumference equipartition, when guaranteeing to go up mould intensity for the reposition of redundant personnel bridge between two adjacent pan feeding holes narrows, reduces the under-bridge blind area, thereby improves the seam quality.

Drawings

Fig. 1 is a schematic structural view of the upper die of the extrusion die of the present invention.

Fig. 2 is a schematic sectional view of the extrusion die of the present invention.

Fig. 3 is a schematic structural diagram of the profile formed by the extrusion die of the present invention.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings.

As shown in fig. 1 and 2, a tubular aluminum profile extrusion die according to a preferred embodiment of the present invention includes an upper die 1 and a lower die 2 that are engaged with each other.

The upper die 1 comprises an upper die main body 3, a feeding hole 4, a shunting bridge 5 and a die core 6. The upper die main body 3 is provided with a boss 7 matched with the lower die. The mold core 6 is located the central point of last mold body 3, and links to each other with last mold body 3 through reposition of redundant personnel bridge 5, and reposition of redundant personnel bridge 5 is preferred five, and the equipartition is in mold core 6 week side to guarantee the joint strength of mold core 6. The feeding holes 4 are formed between every two adjacent shunting bridges 5, the number of the feeding holes 4 is five, the feeding holes are uniformly distributed on the periphery of the mold core, and the feeding holes 4 evenly divide the aluminum material into five parts in the extrusion process of the aluminum profile, so that good circulation of the aluminum material is ensured. Five feeding holes 4 are selected to ensure the strength of the upper die and ensure good aluminum material circulation; in addition, five feeding holes 4 are uniformly distributed along the circumferential direction of the mold core 6, so that the strength of the upper mold is ensured, the flow dividing bridge 5 between every two adjacent feeding holes 4 is narrowed, the dead zone under the bridge is reduced, and the welding quality is improved. Preferably, the feeding hole 4 is a tapered feeding hole, and comprises a narrow part 41 close to the mold core 6 and a wide part 42 far away from the mold core 6, so that the aluminum material can better flow to the dead zone of the shunting bridge 5, the flow rate of the mold is balanced, and the welding quality is further improved.

The lower die 2 comprises a lower die main body 8, a welding chamber 9, a cavity 10 and a profile outlet 11, wherein the lower die main body 8 is provided with a groove 12 matched with the boss 7. The welding chamber 9 is communicated with the feeding hole 4, and the cavity 10 is communicated between the welding chamber 9 and the section bar outlet 11. The mold core 6 extends into the mold cavity 10, the mold cavity 10 is provided with a convex ring 14 protruding inwards, and the mold core 6 extends into the mold cavity 10 and forms a gap 15 for molding the aluminum profile with the convex ring 14.

In the process of extrusion forming of the aluminum profile, an aluminum raw material is extruded, is uniformly distributed through the feeding holes 4 of the upper die 1, enters the welding chamber 9 and is fully mixed, the aluminum material is fully contacted with the die core 6 and the die cavity 10, and is output from the profile outlet 11 through a gap between the die core 6 and the die cavity 10 under the action of pressure, so that an aluminum round pipe 13 shown in fig. 3 is obtained.

The utility model has the advantages that: 1. the utility model discloses extrusion die is through setting up a plurality of pan feeding holes along mold core evenly distributed on last mould, and the pan feeding hole adopts the bell mouth for the past reposition of redundant personnel bridge blind spot that the aluminium material can be better flows, and balanced mould velocity of flow improves the degree of welding.

It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a tubulose aluminium alloy extrusion die, includes interconnect's last mould (1) and lower mould (2), it puts and is equipped with mold core (6), its characterized in that to go up mould (1) central point: go up mould (1) and be equipped with a plurality of edges pan feeding hole (4) that mould core (6) circumference distributes, be equipped with between pan feeding hole (4) and correspond number reposition of redundant personnel bridge (5), mould core (6) pass through reposition of redundant personnel bridge (5) with it links to each other to go up mould (1), the quantity of pan feeding hole (4) is 5, pan feeding hole (4) are toper pan feeding hole, pan feeding hole (4) are including narrow part (41) and the keeping away from near mould core (6) department wide part (42) of mould core (6), lower mould (2) are including die cavity (10), die cavity (10) are equipped with inside bellied bulge loop, mould core (6) stretch into in die cavity (10) and with form the gap of shaping aluminium alloy between the bulge loop.

2. The tubular aluminum profile extrusion die of claim 1, wherein: the lower die (2) comprises a welding chamber (9), and the feeding hole (4) is communicated with the welding chamber (9).

3. The tubular aluminum profile extrusion die of claim 2, wherein: the lower die (2) further comprises a section outlet (11), and the cavity (10) is communicated between the welding chamber (9) and the section outlet (11).