CN213033654U

CN213033654U - Light alloy bar extrusion die

Info

Publication number: CN213033654U
Application number: CN202022009845.0U
Authority: CN
Inventors: 唐晓东
Original assignee: Suzhou Ruisen Cemented Carbide Co ltd
Current assignee: Suzhou Ruisen Cemented Carbide Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-04-23
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a light alloy stick extrusion tooling, it includes: core barrel, die sleeve and heart yearn, the die sleeve tail end is provided with the bell mouth, the bell mouth front end is provided with straight hole, the die sleeve front end be provided with the endocentric shoulder hole in straight hole, the core barrel sets up in the shoulder hole and extends to die sleeve the place ahead, be provided with in the core barrel with the straight hole be linked together extrude the hole, be provided with at least one protruding muscle that extends to in the straight hole along the axial in the bell mouth, protruding muscle front end is provided with the directional blind hole of extruding the hole, be provided with the through wires hole with the blind hole intercommunication on the die sleeve excircle, the heart yearn passes through the through wires hole and the leading-in hole of extruding of blind hole, set up the round tooth's socket on. Light alloy stick extrusion tooling, designed protruding muscle in the bell mouth very much, resistance when having reduced the powder and extruding is favorable to the shaping of alloy stick, conveniently carries out inserting of heart yearn to carry out the shaping of spiral hole when a core section of thick bamboo is rotatory.

Description

Light alloy bar extrusion die

Technical Field

The utility model relates to a light alloy stick production technical field especially relates to a light alloy stick extrusion tooling.

Background

With the development of science and technology, the equipment manufacturing industry is rapidly developed, and great development opportunities are brought to relevant matched industrial enterprises. The manufacturers of the special hard alloy rod materials such as the special machining cutter and the drill bit in the equipment manufacturing field also face the important development opportunities, but the opportunities are accompanied by competition, and the research of enterprises in related fields at home and abroad aiming at the hard alloy rod material technology is continuously increased, so that the major breakthrough of the industry technology is realized, and the technology and the market opportunity are occupied.

The domestic hard alloy industry has the defects of unreasonable product structure, more middle and low-grade products, slow development of high-grade products and the like, and has the defects of large distance compared with the developed western countries, insufficient research and development of novel high-performance hard alloy, incomplete process, large energy consumption and pollution in the production process and the like. In order to reduce the weight of alloy bar, can process the cooling hole in the alloy bar, can promote the cooling effect, can reduce the dead weight again, but the cooling hole is mostly straight hole, and the processing of spiral hole is more complicated, the utility model discloses a patent number is 201620985408.3 utility model discloses an extrusion device of spiral carbide rod in the multithread, adopt the support to carry out the fixed of core bundle, in order expecting to obtain spiral hole in the alloy rod, but in the time production process, the support has hindered extruding of powder, the energy consumption has been increased, be unfavorable for the shaping of carbide rod, and core bundle length is limited, be unfavorable for the keeping of spiral hole, produce the problem of collapsing easily, need improve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a light alloy stick extrusion tooling realizes extruding of alloy stick to obtain spiral hole.

To achieve the purpose, the utility model adopts the following technical proposal:

a lightweight alloy rod extrusion die comprising: core barrel, die sleeve and heart yearn, the die sleeve tail end is provided with the bell mouth, the bell mouth front end is provided with straight hole, the die sleeve front end be provided with the endocentric shoulder hole in straight hole, the core barrel sets up in the shoulder hole and extends to die sleeve the place ahead, be provided with in the core barrel with the straight hole be linked together extrude the hole, be provided with at least one protruding muscle that extends to in the straight hole along the axial in the bell mouth, protruding muscle front end is provided with the directional blind hole of extruding the hole, be provided with the through wires hole with the blind hole intercommunication on the die sleeve excircle, the heart yearn passes through the through wires hole and the leading-in hole of extruding of blind hole, set up the round tooth's socket on.

Wherein, the core wire is a nylon round wire.

Wherein, the tail end of the taper hole is provided with a threaded hole.

Wherein the diameter of the straight hole is not less than the diameter of the extrusion hole.

The core barrel is sleeved with a pressure plate located in front of the die sleeve, the pressure plate is provided with a bolt connected with the die sleeve, the core barrel is provided with a circle of ring pieces located behind the pressure plate, and two sides of each ring piece are respectively provided with a thrust bearing.

And the extrusion hole is internally provided with an axially extending anti-slip groove in a concave manner.

The utility model has the advantages that: the utility model provides a protruding muscle has been designed in light alloy stick extrusion tooling, has reduced the resistance when the powder is extruded, is favorable to the shaping of alloy stick, conveniently carries out the insertion of heart yearn to carry out the shaping of spiral hole when the core section of thick bamboo is rotatory, the back is extruded to the alloy stick, takes out the heart yearn and can obtain spiral hole in the alloy stick, and the qualification rate is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the die case of FIG. 1 after insertion of a core wire.

Detailed Description

The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1 to fig. 2.

The light alloy rod extrusion die shown in fig. 1 and 2 includes: the core barrel 12, the die sleeve 1 and the core wire 16, the tail end of the die sleeve 1 is provided with a tapered hole 3, the tail end of the tapered hole 3 is provided with a threaded hole 14, the die sleeve is convenient to install on an extruder, and powder is pushed into the tapered hole 3.

The front end of the conical hole 3 is provided with a straight hole 4, and powder is guided into the straight hole 4 to perform alloy rod preforming. As shown in figure 1, a convex rib 2 extending into the straight hole 4 is axially arranged in the tapered hole 3, and in the embodiment, the section of the convex rib 2 is smaller, so that the resistance of powder extrusion is reduced, and the forming of the alloy rod is facilitated.

The front end of the die sleeve 1 is provided with a stepped hole 17 concentric with the straight hole 4, the core cylinder 12 is arranged in the stepped hole 17 and extends to the front of the die sleeve 1, in the embodiment, a pressure plate 8 located in the front of the die sleeve 1 is sleeved on the core cylinder 12, and a bolt 13 connected with the die sleeve 1 is arranged on the pressure plate 8 to fix the pressure plate 8.

In order to realize the axial limit of the core barrel 12, a circle of ring sheets 7 positioned behind the pressure plate 8 are integrally arranged on the excircle of the core barrel 12, and thrust bearings 9 are respectively arranged on two sides of each ring sheet 7 to support the rotation of the ring sheets 7 and the core barrel 12. In this embodiment, a circle of tooth grooves 11 is formed in the outer circle of the core barrel 12, so that the core barrel 12 can be conveniently rotated by driving through a gear motor.

The core barrel 12 is internally provided with an extrusion hole 4 communicated with the straight hole 4, in the embodiment, the diameter of the straight hole 4 is not smaller than that of the extrusion hole 4, and the diameter of the extrusion hole 4 can be slightly smaller, which is beneficial to the final extrusion molding of the alloy rod. The extrusion hole 4 is internally and concavely provided with an axially extending anti-slip groove 15, so that the problem of slipping of the alloy rod in the extrusion hole 4 is avoided, and the alloy rod in the extrusion hole 4 can synchronously rotate along with the core barrel 12.

The front end of the convex rib 2 is provided with a blind hole 6 pointing to the extrusion hole 10, the excircle of the die sleeve 1 is provided with a threading hole 5 communicated with the blind hole 6, the core wire 16 is led into the extrusion hole 10 through the threading hole 5 and the blind hole, and is embedded into the alloy rod along with the extrusion molding of powder, and the alloy rod rotates along with the core barrel 12, so that the spiral distribution of the core wire 16 in the alloy rod is realized.

In this embodiment, 16 heart yearns are the nylon circle line, and nylon circle line surface fat liquoring makes things convenient for follow-up taking out from the alloy bar, obtains spiral hole, reduces the dead weight, promotes the cooling effect.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A lightweight alloy rod extrusion die, comprising: core barrel, die sleeve and heart yearn, the die sleeve tail end is provided with the bell mouth, the bell mouth front end is provided with straight hole, the die sleeve front end be provided with the endocentric shoulder hole in straight hole, the core barrel sets up in the shoulder hole and extends to die sleeve the place ahead, be provided with in the core barrel with the straight hole be linked together extrude the hole, be provided with at least one protruding muscle that extends to in the straight hole along the axial in the bell mouth, protruding muscle front end is provided with the directional blind hole of extruding the hole, be provided with the through wires hole with the blind hole intercommunication on the die sleeve excircle, the heart yearn passes through the through wires hole and the leading-in hole of extruding of blind hole, set up the round tooth's socket on.

2. The lightweight alloy rod extrusion die of claim 1, wherein the core wire is a nylon round wire.

3. The lightweight alloy rod extrusion die of claim 1, wherein the tapered hole is provided with a threaded hole at the trailing end.

4. The lightweight alloy rod extrusion die of claim 1, wherein the diameter of the straight hole is not less than the diameter of the extrusion hole.

5. The light alloy rod extrusion die of claim 1, wherein a pressure plate located in front of the die sleeve is sleeved on the core barrel, a bolt connected with the die sleeve is arranged on the pressure plate, a ring of ring sheets located behind the pressure plate is arranged on the core barrel, and thrust bearings are respectively arranged on two sides of the ring sheets.

6. The lightweight alloy rod extrusion die of claim 1, wherein the extrusion hole is recessed with axially extending anti-slip grooves.