CN107962102A

CN107962102A - Lower die edge of a knife anti-tripping waste device

Info

Publication number: CN107962102A
Application number: CN201610909265.2A
Authority: CN
Inventors: 胡承兴; 颜龙飞; 徐旭峰
Original assignee: Wuxi Wei Tang Industrial Technology Ltd By Share Ltd
Current assignee: Wuxi Wei Tang Industrial Technology Ltd By Share Ltd
Priority date: 2016-10-19
Filing date: 2016-10-19
Publication date: 2018-04-27

Abstract

The present invention relates to a kind of lower die, especially lower die edge of a knife anti-tripping waste device, including be located at the convex ribs on the inside of the edge of a knife, the top of the convex ribs is less than the top of the edge of a knife.Guide inclined-plane is equipped with below the convex ribs.The convex ribs are no less than one.The convex ribs are no less than two, medial surface that is symmetrical or being distributed on the edge of a knife.Lower die edge of a knife anti-tripping waste device provided by the invention overcomes the shortcomings of existing structure, change original through type edge of a knife punching face, simple and stable structure, effectively prevents scrap-bounce, avoid product weigh wounded, a series of losses of burn failure etc., and then improve the drawing velocity of mould.

Description

Lower die edge of a knife anti-tripping waste device

Technical field

The present invention relates to a kind of lower die, especially lower die edge of a knife anti-tripping waste device.

Background technology

Mould is known as the mother of industry, and automobile industry is the Typical Representative of industrial development again, with automobile at a high speed, relax The suitable, development of safe, body structure will be increasingly sophisticated, it is desirable to which mould develops to maximization, complication, high-precision matter direction, right Product appearance and die life and production efficiency require higher and higher.But during punching production, waste material during punching Upper mold either waste material is often bonded to jump out to lower die knife edge surfaces, cause often to occur during punching press product weigh wounded or It is burn failure, causes unnecessary loss.

The content of the invention

To solve the above problems, the present invention provides a kind of lower die edge of a knife anti-tripping waste device for preventing that waste material from jumping out the edge of a knife, Concrete technical scheme is：

Lower die edge of a knife anti-tripping waste device, including the convex ribs being located on the edge of a knife medial surface of lower die, the convex ribs are on the inside of the edge of a knife Protrusion, the top of the convex ribs are less than the top of the edge of a knife.

The bottom of the convex ribs is equipped with guide inclined-plane.

The convex ribs are no less than one.

The convex ribs are no less than two, medial surface that is symmetrical or being distributed on the edge of a knife.

The top of convex ribs is less than the top of the edge of a knife, does not influence shape of product and punch.When punch enters inside the edge of a knife, punching Head is not interfered with convex ribs.Waste material is pressed onto in convex ribs by punch, and convex ribs block waste material, prevents scraps springing back.

Guide inclined-plane facilitates the discharge of waste material, prevents that accumulating excessive waste material influences punching.

Set the anti-jump effect of multiple convex ribs good, it is especially symmetrical or uniformly distributed, make waste material uniform force, can effectively block useless Material.

First by silk thread cutting processing of being careful during processing, convex ribs shape at the same time with the edge of a knife, then to being processed at the top of convex ribs, The top of convex ribs is set to be less than the top of the edge of a knife.

Punch downlink is punched tablet during work, and punch enters inside the edge of a knife, waste material is produced after punching, at this time on the edge of a knife Convex ribs extrusional slug, makes waste material be stuck in the edge of a knife, without being sticked on punch, is jumped after the edge of a knife will not being left with punch uplink Go out the edge of a knife.

Lower die edge of a knife anti-tripping waste device provided by the invention overcomes the shortcomings of existing structure, changes original through type knife Mouthful punching face, simple and stable structure, effectively prevents scrap-bounce, avoid product weigh wounded, a series of damages of burn failure etc. Lose, and then improve the drawing velocity of mould.

Brief description of the drawings

Fig. 1 is the top view of lower die；

Fig. 2 is the partial enlarged view at I in Fig. 1；

Fig. 3 is enlarged partial sectional views of the Fig. 1 along line A-A.

Embodiment

In conjunction with the embodiment of the brief description of the drawings present invention.

As shown in Figure 1 to Figure 3, lower die edge of a knife anti-tripping waste device, including be located at convex on 2 medial surface of the edge of a knife of lower die 1 Muscle 3, the convex ribs 3 are to 2 inner bulge of the edge of a knife, and the top of the convex ribs 3 is less than the top of the edge of a knife 2, and the bottom of the convex ribs 3 is set There is guide inclined-plane 31.The convex ribs 3 are equipped with three, and two of which convex ribs 3 are symmetrical, another convex ribs 3 is located on the inside of the edge of a knife The centre in face.

Punch downlink is punched tablet during work, and punch enters inside the edge of a knife 2, waste material is produced after punching, at this time on the edge of a knife 2 3 extrusional slug of convex ribs, waste material is stuck in the edge of a knife 2, without being sticked on punch, the edge of a knife will not be left with punch uplink The edge of a knife 2 is jumped out after 2.

Claims

1. lower die edge of a knife anti-tripping waste device, it is characterised in that including being located at lower die（1）The edge of a knife（2）Convex ribs on medial surface （3）, the convex ribs（3）To the edge of a knife（2）Inner bulge, the convex ribs（3）Top be less than the edge of a knife（2）Top.

2. lower die edge of a knife anti-tripping waste device according to claim 1, it is characterised in that the convex ribs（3）Bottom set There is guide inclined-plane（31）.

3. lower die edge of a knife anti-tripping waste device according to claim 1 or 2, it is characterised in that the convex ribs（3）It is no less than One.

4. lower die edge of a knife anti-tripping waste device according to claim 1 or 2, it is characterised in that the convex ribs（3）It is no less than It is two, symmetrical or be distributed on the edge of a knife（2）Medial surface.