CN214866201U

CN214866201U - Aluminum profile extrusion die

Info

Publication number: CN214866201U
Application number: CN202023302331.0U
Authority: CN
Inventors: 陆杰
Original assignee: Suzhou Xilaimi Metal Manufacturing Co ltd
Current assignee: Suzhou Xilaimi Metal Manufacturing Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-26
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to the technical field of dies, in particular to an aluminum profile extrusion die, which comprises an upper die and a lower die which are fixedly connected, wherein the upper die is provided with a die core, the lower die is provided with a welding chamber and a discharge port, the bottom of the welding chamber is provided with an insert with a hollow structure, the insert is made of hard alloy, and the selected hard alloy can enhance the wear resistance of the extrusion die and improve the surface quality of a formed product; the gap formed between the insert and the mold core is a working band which is positioned between the welding chamber and the discharge hole.

Description

Aluminum profile extrusion die

Technical Field

The utility model relates to the technical field of mold, in particular to aluminium alloy extrusion die.

Background

In the aluminum profile extrusion die in the prior art, H13 die steel is adopted, the hardness is low, the wear resistance is poor, and when a large-tonnage extruder (for example 2500 tons) is adopted to extrude the die, the aluminum profile extrusion die is easily damaged.

Secondly, the surface of the formed product extruded by the aluminum profile extrusion die in the prior art is rough, and in order to improve the surface finish and the forming precision of the aluminum profile product, the extrusion die is usually made of imported alloy steel, so the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome whole or part among the above-mentioned prior art not enough, provide an aluminium alloy extrusion die to solve among the above-mentioned prior art problem that aluminium alloy extrusion die hardness is low, wear resistance is poor, life is short and shaping product surface quality is low.

In order to achieve the purpose, the utility model provides an aluminum profile extrusion die, which comprises an upper die and a lower die which are fixedly connected; the upper die is provided with a die core, the lower die is provided with a welding chamber and a discharge hole, the bottom of the welding chamber is provided with an insert with a hollow structure, the insert is made of hard alloy, the type of the hard alloy is YG15 or YG20, and the abrasion resistance of the extrusion die can be improved and the surface quality of a formed product can be improved; the inserts with the space that forms between the mold core is the working tape, the working tape is located between seam room and the discharge gate.

The upper die and the lower die are made of high-carbon high-chromium alloy tool steel, the preferred type is SKD61 material, the material is high in hardness and good in wear resistance, the service life of the extrusion die is prolonged, the yield of a formed product is improved, and the material is used for extrusion forming of aluminum profiles.

The cross section length of the hollow structure ranges from 19.5 mm to 23.5mm, and the width ranges from 5.3 mm to 9.3 mm; the die comprises an upper die, a die core and an upper die, wherein the upper die is provided with an upper die feeding surface, two feeding holes are arranged on the upper die feeding surface, the two feeding holes are symmetrically arranged about a shunting bridge, the die core and the shunting bridge are of an integral structure, and the diameter of the upper die feeding surface is 62.7 mm; the lower die is provided with a lower die discharging surface, and the diameter of the lower die discharging surface is 66 mm.

When the upper die and the lower die are fixedly connected, the shape of the upper die consists of a conical part and a cylindrical part, the design of the shape of the upper die is convenient for the installation of an extrusion die and a machine, and the cylindrical part is provided with a positioning pin which is convenient for the positioning of the extrusion die in a die sleeve.

The discharge gate department is equipped with at least one idle sword, the idle sword is multistage idle sword, the length of multistage idle sword increases progressively in proper order along the ejection of compact direction, the idle sword can guarantee that the surface of shaping product is not scraped flower and the better ejection of compact of shaping product.

The beneficial effects of the utility model reside in that: the utility model provides an aluminum profile extrusion die, wherein an insert is arranged at the bottom of a welding chamber, and the insert is made of hard alloy, so that the abrasion resistance of the extrusion die can be improved, and the surface quality of a formed product can be improved; the upper die and the lower die of the extrusion die are made of high-carbon high-chromium alloy tool steel, the material is high in hardness and good in wear resistance, the service life of the extrusion die is prolonged, and the yield of formed products is improved.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a cross-sectional view of an upper mold of the present invention;

FIG. 2 is a schematic structural view of the feeding surface of the upper mold of the present invention;

FIG. 3 is a cross-sectional view of the lower mold of the present invention;

fig. 4 is a schematic structural view of the feeding surface of the lower mold of the present invention.

Reference numerals: 1-upper mould; 2-lower mould; 3-feeding surface of upper die; 4-a feed inlet; 5-a shunt bridge; 6-discharging surface of upper die; 7-mold core; 8-feeding surface of the lower die; 9-a welding chamber; 10-an insert; 11-a working band; 12-discharging surface of lower die; 13-blank cutter; 14-positioning pin.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The utility model discloses an aluminium alloy extrusion die in embodiment, refer to fig. 1 to 4, last mould 1 and lower mould 2 including fixed connection, the material of going up mould 1 and lower mould 2 is the high chromium alloy tool steel of high carbon, preferably SKD61 material, and this material hardness is high, the wearability is good, can strengthen the wearability and the extension mould life of mould, and this extrusion die uses on 2500 tons of extruders for the extrusion aluminium alloy.

Go up mould 1's last mould charge level 3's diameter is 62.7mm go up and be equipped with two feed inlets 4 that the size is unanimous, the shape is the same on the mould charge level 3, separate by reposition of redundant personnel bridge 5 between two feed inlets 4, have on the reposition of redundant personnel bridge 5 rather than mold core 7 as an organic whole, go up mould charge level 3 to the distance of going up between the mould discharge level 6 is 22 mm.

The lower die 2 is sequentially provided with a lower die feeding surface 8, a welding chamber 9, a working belt 11 and a lower die discharging surface 12, the diameter of the lower die discharging surface 12 is 66mm, and the distance between the lower die feeding surface 8 and the lower die discharging surface 12 is 22.7 mm; an insert 10 is arranged at the central position of the bottom of the welding chamber 9, the diameter of the insert 10 is 35mm, the thickness of the insert 10 is 8mm, the material of the insert is hard alloy, preferably YG15 or YG20 die steel, the material can further improve the wear resistance of the die, prolong the service life of the die and improve the surface quality of a product, the cross section of the hollow structure of the insert 10 is 21.5mm, the width of the hollow structure of the insert 10 is 7.3mm, the die core 7 is buckled in the hollow structure of the insert 10, a formed gap is a working band of an extrusion die, and the shape of the working band determines the shape of a molded product extruded by the extrusion die; the discharge gate department of lower mould 2 still is equipped with dead knife 13, dead knife 13 can reduce the shaping product surface scratch for the better ejection of compact of shaping product.

When the upper die 1 and the lower die 2 are fixedly connected, the shape of the upper die consists of a conical part and a cylindrical part, a positioning pin 14 is arranged on the cylindrical part, and the conical angle theta of the conical part is 5 degrees, so that the positioning of the extrusion die in the die sleeve is facilitated by the design.

It is right above the utility model provides an aluminium alloy extrusion die has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a structure and theory of operation have been expounded, and the explanation of above embodiment only is used for helping to understand the utility model discloses a method and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.

Claims

1. The utility model provides an aluminium alloy extrusion die, includes fixed connection's last mould and lower mould, its characterized in that, it has the mold core to go up the mould, the lower mould has seam room and discharge gate, seam room bottom is equipped with hollow structure's inlay, the material of inlay is carbide, the inlay with the space that forms between the mold core is the work area, the work area is located between seam room and the discharge gate.

2. The aluminum profile extrusion die as recited in claim 1, wherein the upper die and the lower die are made of high-carbon high-chromium alloy tool steel.

3. The aluminum profile extrusion die of claim 2, wherein the high-carbon high-chromium alloy tool steel is SKD 61.

4. The aluminum profile extrusion die of claim 1, wherein the cemented carbide material type is YG15 or YG 20.

5. The aluminum profile extrusion die as claimed in claim 1 or 2, wherein the cross-sectional length of the hollow structure ranges from 19.5 to 23.5mm, and the width ranges from 5.3 to 9.3 mm.

6. The aluminum profile extrusion die as claimed in claim 1, wherein the upper die is provided with an upper die feeding surface, two feeding ports are arranged on the upper die feeding surface, the two feeding ports are symmetrically arranged about the shunting bridge, the die core and the shunting bridge are of an integral structure, and the diameter of the upper die feeding surface is 62.7 mm.

7. The aluminum profile extrusion die of claim 1, wherein the lower die has a lower die discharge surface with a diameter of 66 mm.

8. The aluminum profile extrusion die as recited in claim 1, wherein at least one blank cutter is provided at the discharge port.

9. The aluminum profile extrusion die according to claim 8, wherein the blank cutter is a multi-stage blank cutter, and the lengths of the multi-stage blank cutter are sequentially increased in an increasing manner along the discharging direction.

10. The aluminum profile extrusion die as recited in claim 1, wherein the upper die and the lower die are fixedly connected, the outer shape of the upper die is composed of a conical portion and a cylindrical portion, and a positioning pin is arranged on the cylindrical portion.