CN209918654U

CN209918654U - Die-cut mould of aluminium material

Info

Publication number: CN209918654U
Application number: CN201920228631.7U
Authority: CN
Inventors: 徐文虎; 何永生
Original assignee: Suzhou Bing Rong Precision Metal Products Co
Current assignee: Suzhou Bing Rong Precision Metal Products Co
Priority date: 2019-02-21
Filing date: 2019-02-21
Publication date: 2020-01-10
Anticipated expiration: 2029-02-21

Abstract

The utility model discloses an aluminum material punching die, which comprises a male die and a female die which are matched with each other, wherein a male die punch is arranged on the male die; a blanking hole matched with the punch of the male die is formed in the female die; the male punch is of a cylindrical structure, and an elastic thimble along the axial direction of the male punch is arranged in the middle of the male punch; the front end of the elastic thimble extends out of the punch; the tail end of the elastic thimble is provided with a spring; the spring pushes the elastic thimble forwards; the blanking hole comprises a straight hole section and a taper hole section; a vent groove along the length direction of the blanking hole is arranged on the side wall of the blanking hole; and the taper hole section of the blanking hole is provided with an air exhaust hole which is positioned on the side wall of the blanking hole. The utility model discloses a set up elasticity thimble on the terrace die punching pin, change the structure in blanking hole simultaneously, effectively solved the problem that appears jumping the waste material at the die-cut in-process of aluminium material, avoided appearing the product surface and crushed, prolonged the life of mould, improved the quality of product.

Description

Die-cut mould of aluminium material

Technical Field

The utility model relates to a mechanical transmission field especially relates to a die-cut mould of aluminium material.

Background

Products made of aluminum and other alloy elements are usually made by processing into castings, forgings, foils, plates, strips, pipes, bars, profiles, etc., and then cold bending, sawing, drilling, assembling, coloring, etc. The aluminum material has light weight, good heat dissipation, easy molding and processing and wide application range. Especially, the mobile phone accessory products are processed through the aluminum piece sheets, and the aluminum piece sheets need to be punched due to the fact that holes in the aluminum piece mobile phone accessories are more. However, in the process of punching an aluminum sheet, the waste material which should fall from the blanking hole of the female die often jumps out of the blanking hole along with the male die due to various reasons, so that the phenomenon of small-hole scrap jumping is caused, the small-hole scrap jumping easily causes poor quality such as product crushing and damage, and the die can be damaged seriously, thereby causing greater loss.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a die-cut mould of aluminium material, to the not enough among the prior art, adopt terrace die punching pin and blanking hole to improve, solved current die-cut mould at die-cut in-process, easily because the aperture jumps the waste material phenomenon, cause the product to crush quality such as hinder bad, serious still can harm the mould to cause the problem of bigger loss.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the aluminum material punching die comprises a male die and a female die which are matched with each other, wherein a male die punch is arranged on the male die; a blanking hole matched with the punch of the male die is formed in the female die; the male punch is of a cylindrical structure, and an elastic thimble along the axial direction of the male punch is arranged in the middle of the male punch; the front end of the elastic thimble extends out of the punch; a spring is arranged at the tail end of the elastic thimble; the spring pushes the elastic thimble forwards; the blanking hole comprises a straight hole section and a taper hole section; the straight hole section is positioned at the upper end of the taper hole section; the straight hole section is of a cylindrical structure, and the conical hole section is of an inverted conical structure; a vent groove along the length direction of the blanking hole is formed in the side wall of the blanking hole; the vent grooves are arranged along the side walls of the blanking holes and are sunken into the side walls of the blanking holes to form a straight groove structure; at least one vent groove is formed; and the conical hole section of the blanking hole is provided with an air suction hole, and the air suction hole is positioned on the side wall of the blanking hole.

As a preferred scheme of the utility model, the air exhaust hole is connected with an external air exhaust pump; and a filter screen is arranged at the opening of the air exhaust hole.

As an optimized proposal of the utility model, the number of the vent grooves is 3-8, and the vent grooves surround the blanking holes and are distributed at even intervals.

As an optimized proposal of the utility model, the front end of the elastic thimble is of a circular arc structure.

As a preferred scheme of the utility model, the length of straight hole section is 2-4.5 cm.

As a preferred scheme of the utility model, the opening part of the air exhaust hole is 6.5-10cm away from the top end of the blanking hole.

As an optimized proposal of the utility model, the included angle between the side wall of the taper hole section of the blanking hole and the vertical direction is 2-4 degrees.

Through the technical scheme, the utility model discloses technical scheme's beneficial effect is: the utility model has the advantages of simple and reasonable structure, through set up elasticity thimble on the terrace die punching pin, change the structure in blanking hole simultaneously, effectively solved the problem that appears jumping the waste material at the die-cut in-process of aluminium material, avoided appearing the product surface and crushed, prolonged the life of mould, improved the quality of product, improved production efficiency, the product yields is high, excellent in use effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram disclosed in the embodiment of the present invention.

The corresponding part names indicated by the numbers and letters in the drawings:

1. punch 2, elastic thimble 3, spring

4. Blanking hole 5, vent groove 6, exhaust hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

With reference to fig. 1, the utility model provides a die-cut mould of aluminium material for carry out die-cut to the aluminium material, including terrace die and the die of mutually supporting. A male die punch 1 is arranged on the male die; and a blanking hole 4 matched with the punch 1 is arranged on the female die. The punch 1 is of a cylindrical structure, and an elastic thimble 2 along the axial direction of the punch 1 is arranged in the middle of the punch 1. The front end of the elastic thimble 2 extends out of the punch 1. The spring 3 is arranged at the tail end of the elastic thimble 2. The spring 3 pushes the elastic thimble 2 forwards. In the punching process, the elastic ejector pin 2 can elastically push the punched waste, so that the waste is prevented from jumping out of the blanking hole 4 along with the punch 1. The blanking hole 4 includes a straight hole section and a tapered hole section. The straight hole section is positioned at the upper end of the taper hole section. The straight hole section is a cylindrical structure, and the taper hole section is an inverted cone structure. The side wall of the blanking hole 4 is provided with a vent groove 5 along the length direction of the blanking hole 4. The vent grooves 5 are arranged along the side wall of the blanking hole 4 and are sunken into the side wall of the blanking hole 4 to form a straight groove structure. The vent groove 5 is at least one. Preferably, the number of the vent grooves 5 is 3-8, and the vent grooves 5 are evenly distributed at intervals around the blanking hole 4. The vent groove 5 can effectively avoid the phenomenon that air between two wastes is compressed to bounce the wastes in the punching process. And an air exhaust hole 6 is arranged at the conical hole section of the blanking hole 4, and the air exhaust hole 6 is positioned on the side wall of the blanking hole 4. Specifically, the air suction hole 6 is connected to an external air suction pump. In the punching process, the air pump is started in a clearance mode, and waste materials in the blanking hole 4 are prevented from flying. In order to avoid waste material entering the suction pump and causing damage to the suction pump, a filter screen is arranged at the opening of the suction hole 6.

In order to further improve the performance of the elastic thimble 2, the front end of the elastic thimble 2 is in a circular arc structure.

In order to better avoid the phenomenon of scrap jumping in the blanking hole 4, the length of the straight hole section is 2-4.5 cm. The opening of the air exhaust hole 6 is 6.5-10cm away from the top end of the blanking hole 4. Meanwhile, the included angle between the side wall of the conical hole section of the blanking hole 4 and the vertical direction is preferably 2-4 degrees.

Through the above-mentioned specific embodiment, the beneficial effects of the utility model are that: the utility model has the advantages of simple and reasonable structure, through set up elasticity thimble 2 on terrace die punching pin 1, change blanking hole 4's structure simultaneously, effectively solved the problem that appears jumping the waste material at the die-cut in-process of aluminium material, avoided appearing the product surface and weigh wounded, prolonged the life of mould, improved the quality of product, improved production efficiency, the product yields is high, excellent in use effect.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The aluminum material punching die comprises a male die and a female die which are matched with each other, and is characterized in that a male die punch is arranged on the male die; a blanking hole matched with the punch of the male die is formed in the female die; the male punch is of a cylindrical structure, and an elastic thimble along the axial direction of the male punch is arranged in the middle of the male punch; the front end of the elastic thimble extends out of the punch; a spring is arranged at the tail end of the elastic thimble; the spring pushes the elastic thimble forwards; the blanking hole comprises a straight hole section and a taper hole section; the straight hole section is positioned at the upper end of the taper hole section; the straight hole section is of a cylindrical structure, and the conical hole section is of an inverted conical structure; a vent groove along the length direction of the blanking hole is formed in the side wall of the blanking hole; the vent grooves are arranged along the side walls of the blanking holes and are sunken into the side walls of the blanking holes to form a straight groove structure; at least one vent groove is formed; and the conical hole section of the blanking hole is provided with an air suction hole, and the air suction hole is positioned on the side wall of the blanking hole.

2. The aluminum blanking die of claim 1 wherein the air extraction holes are connected to an external air extraction pump; and a filter screen is arranged at the opening of the air exhaust hole.

3. An aluminium blanking die according to claim 1 wherein the number of vent channels is 3-8, the vent channels being evenly spaced around the blanking aperture.

4. The aluminum blanking die of claim 1, wherein the front end of the elastic ejector pin is of a circular arc structure.

5. An aluminium blanking die according to claim 4 wherein the length of the straight hole section is 2-4.5 cm.

6. The aluminum blanking die as recited in claim 5, wherein the opening of the air suction hole is 6.5-10cm away from the top end of the blanking hole.

7. An aluminium blanking die according to claim 6 wherein the angle between the side wall of the conical section of the blanking hole and the vertical is 2-4 °.