CN220031119U

CN220031119U - Bar extrusion die

Info

Publication number: CN220031119U
Application number: CN202321513580.5U
Authority: CN
Inventors: 周郑彬
Original assignee: Shandong Tianhe Jinggong New Material Technology Co ltd
Current assignee: Shandong Tianhe Jinggong New Material Technology Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2023-11-17
Anticipated expiration: 2033-06-14

Abstract

The utility model discloses a bar extrusion die, which comprises a die holder, a plurality of forming pipes arranged at the top end of the die holder, and an upper die arranged at the top ends of the forming pipes, wherein a die cavity is arranged in the forming pipes, a pouring seat is arranged at the top end of the upper die, a pouring inlet is arranged at the top end of the pouring seat, tree-shaped runner holes are arranged in the pouring seat and the upper die, and a feed inlet of each runner hole is communicated with the pouring inlet; according to the utility model, the tree-shaped runner holes are arranged in the pouring seat and the upper die, and the feed inlets of the runner holes are communicated with the pouring inlet, so that molten colloid enters the runner holes from the pouring inlet during pouring, the runner holes are changed from one runner to two runner holes and then from two runner holes to four runner holes, the runner holes enter the forming tube in an incremental manner, and finally bar products are extruded through the forming tube.

Description

Bar extrusion die

Technical Field

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

Background

The common bar extrusion die structure is shown in fig. 2, basically comprises a plurality of forming pipes, two templates, a cavity formed between the two templates and a gate communicated with the cavity, and has simple structure, only 2 templates are needed, but the extrusion speeds of different forming pipes in actual production are different, the flow inside the cavity of the die is unbalanced, and the quality of the product is affected to a certain extent; and through entering the die cavity with the molten colloid from the runner, the material flows and causes shearing heat generation, and the corner is in the effect of corner effect and flows faster, and different molding pipes extrude the product at different speeds.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a bar extrusion die.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a bar extrusion die which comprises a die holder, a plurality of forming pipes arranged at the top ends of the die holder, and an upper die arranged at the top ends of the forming pipes, wherein a die cavity is arranged in the forming pipes, a pouring seat is arranged at the top end of the upper die, a pouring inlet is arranged at the top end of the pouring seat, tree-shaped runner holes are arranged in the pouring seat and the upper die, a feeding inlet of each runner hole is communicated with the pouring inlet, and branch discharging holes of the runner holes are respectively communicated with the top ends of the forming pipes.

As a preferable technical scheme of the utility model, the upper die comprises a plurality of runner seats fixedly connected up and down, the runner seat at the topmost end is connected with the pouring seat, and each branch of the runner hole is obliquely arranged downwards.

As a preferable technical scheme of the utility model, rubber sealing rings are arranged between two adjacent runner seats and between the runner seat at the topmost end and the pouring seat.

As a preferable embodiment of the present utility model, the runner Kong Fenzhi in the lowest runner seat is disposed vertically downward.

As a preferable technical scheme of the utility model, a cooling cavity is arranged in the molding pipe, and cooling water for cooling the molten colloid in the mold cavity is arranged in the cooling cavity.

The beneficial effects of the utility model are as follows:

this kind of rod extrusion tooling is equipped with arborescent runner hole through the inside of advancing the seat of watering and last mould, the feed inlet in runner hole is linked together with advancing the runner for advance when watering, enter into the inside in runner hole with molten colloid from advancing the runner, the runner hole is changed into two by one, then is changed into four by two, so increases gradually, enters into the inside of shaping pipe from the runner hole, extrudes the rod product through the shaping pipe at last, this kind of many shunts form guarantees the even unanimity of die orifice ejection of compact easily, and inside flow is more balanced, easy messenger's product quality is stable, and the extruded rod product quality is better.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a cross-sectional view of a bar extrusion die of the present utility model;

fig. 2 is a cross-sectional view of a bar extrusion die in accordance with the general teachings of the present utility model.

In the figure: 1. a die holder; 2. forming a tube; 3. an upper die; 4. a mold cavity; 5. pouring seat; 6. pouring gate; 7. a flow passage hole; 8. a runner seat; 9. a rubber seal ring; 10. and a cooling chamber.

Description of the embodiments

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Examples: as shown in fig. 1, the bar extrusion die comprises a die holder 1, a plurality of forming pipes 2 arranged at the top end of the die holder 1, and an upper die 3 arranged at the top end of the forming pipes 2, wherein a die cavity 4 is arranged in the forming pipes 2, a casting seat 5 is arranged at the top end of the upper die 3, a casting inlet 6 is arranged at the top end of the casting seat 5, tree-shaped runner holes 7 are arranged in the casting seat 5 and the upper die 3, a feeding port of each runner hole 7 is communicated with the corresponding casting inlet 6, and branch discharging ports of the runner holes 7 are respectively communicated with the top ends of the forming pipes 2.

The upper mold 3 comprises a plurality of runner seats 8 fixedly connected up and down, the runner seats 8 are fixedly connected through a plurality of bolts, the runner seat 8 at the topmost end is connected with the pouring seat 5 through a plurality of bolts, and all branches of the runner holes 7 are obliquely downwards arranged so as to facilitate the flow of molten colloid in the runner holes 7.

Wherein, two adjacent runner seats 8 are between and the runner seat 8 that is most on top all is equipped with rubber seal 9 with advance between the seat 5 of watering, and rubber seal 9's setting can play sealed effect.

Wherein, the runner hole 7 branch in the runner seat 8 at the lowest end is vertically arranged downwards.

Wherein, the inside of the molding tube 2 is provided with a cooling cavity 10, and the inside of the cooling cavity 10 is provided with cooling water for cooling the molten colloid in the mold cavity 4.

During operation, the bar extrusion die is provided with the tree-shaped runner holes 7 in the pouring seat 5 and the upper die 3, and the feed inlet of the runner holes 7 is communicated with the pouring inlet 6, so that molten colloid enters the runner holes 7 from the pouring inlet 6 during pouring, the runner holes 7 are changed into two from one to four from two, then the runner holes 7 are gradually increased, bar products are introduced into the forming tube 2 from the runner holes 7, and finally the bar products are extruded through the forming tube 2.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a rod extrusion tooling, includes die holder (1) and establishes a plurality of shaping pipes (2) on die holder (1) top to and establish last mould (3) on a plurality of shaping pipes (2) top, a serial communication port, the inside of shaping pipe (2) is equipped with die cavity (4), the top of going up mould (3) is equipped with into pouring seat (5), the top of pouring seat (5) is equipped with into runner hole (7) of pouring into gate (5) and the inside of last mould (3), the feed inlet of runner hole (7) is linked together with into runner (6), and each branch discharge gate of runner hole (7) is linked together with the top of a plurality of shaping pipes (2) respectively.

2. Bar extrusion die according to claim 1, characterized in that the upper die (3) comprises a plurality of runner seats (8) fixedly connected up and down, the topmost runner seat (8) is connected with the casting seat (5), and each branch of the runner hole (7) is arranged obliquely downwards.

3. Bar extrusion die according to claim 2, characterized in that rubber sealing rings (9) are arranged between two adjacent runner seats (8) and between the topmost runner seat (8) and the casting seat (5).

4. A rod extrusion die according to claim 3, characterized in that the branches of the runner bore (7) in the runner base (8) at the lowest end are arranged vertically downwards.

5. Bar extrusion die according to claim 1, characterized in that the inside of the forming tube (2) is provided with a cooling cavity (10), the inside of the cooling cavity (10) being provided with cooling water for cooling the molten gel in the die cavity (4).