CN219309847U

CN219309847U - Anti-scrap-jump die for punching

Info

Publication number: CN219309847U
Application number: CN202320601704.9U
Authority: CN
Inventors: 彭燕芝
Original assignee: Yaosheng Wanfeng Electronic Technology Kunshan Co ltd
Current assignee: Yaosheng Wanfeng Electronic Technology Kunshan Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-07-07
Anticipated expiration: 2033-03-24

Abstract

The utility model discloses a punching scrap-jumping-preventing die, which comprises: the upper die and the lower die are fixedly provided with a punch; a stripper plate is arranged between the upper die and the lower die; the punch penetrates through the stripper plate; the lower die is provided with a knife edge corresponding to the punch, and an inverted conical inclined surface is arranged at the feeding position of the knife edge. The inverted conical inclined surface is additionally arranged at the knife edge, the upper part is large, the lower part is small, the shape of the punched waste is actually larger than that of the straight section of the knife edge, the waste is prevented from jumping up, and the scrap-jumping prevention effect is achieved.

Description

Anti-scrap-jump die for punching

Technical Field

The utility model relates to the technical field of dies, in particular to a punching scrap-jumping-preventing die.

Background

The stamping metal die is a process means for processing and stamping a workpiece, the workpiece is deformed through stamping, and then the purpose of processing is achieved, and the existing stamping bending process is easy to lead the cutting part of the workpiece to generate a scrap rebound phenomenon when the workpiece is processed. The scrap may enter the workpiece surface with a probability that the workpiece surface is damaged.

As shown in fig. 5, the main causes of the scrap rebound are suction by vacuum, suction to the edge of the male die, suction by oil, magnetic force of the male die, negative pressure caused by compressed air of the female die, etc. In addition, in a general blanking gap, the size of the discharged scrap and the diameter of the die hole are small, so scrap rebound is liable to occur.

Disclosure of Invention

The utility model aims to provide a punching scrap-jumping-preventing die.

To achieve the above object, the present utility model adopts the following:

a scrap-skip preventing die for punching, comprising: the upper die and the lower die are fixedly provided with a punch; a stripper plate is arranged between the upper die and the lower die; the punch penetrates through the stripper plate; the lower die is provided with a knife edge corresponding to the punch, and an inverted conical inclined surface is arranged at the feeding position of the knife edge.

Preferably, the upper die includes: the device comprises an upper template, a bearing layer and a fixing layer; the bearing layer and the fixing layer are sequentially overlapped on the lower surface of the upper template; one end of the punch head passes through the fixing layer to be abutted against the bearing layer.

Preferably, the stripper plate includes: a buffer layer and a contact layer; the buffer layer is overlapped with the contact layer, the buffer layer is abutted to the upper die, and the contact layer is abutted to the lower die.

Preferably, the lower die includes: the lower die plate, the knife edge layer and the lower die bearing layer; the knife edge layer and the lower die bearing layer are sequentially overlapped on the lower die plate, and the lower die plate, the knife edge layer and the lower die bearing layer are provided with a stripping opening; the knife edge of the knife edge layer is provided with an inverted cone-shaped inclined surface.

Preferably, the inclination of the inverted conical inclined surface is 5-15 °.

Preferably, the width of the feeding part of the knife edge is larger than the width of the punch.

The utility model has the following advantages:

1. the inverted conical inclined surface is additionally arranged at the knife edge, the upper part is large, the lower part is small, the shape of the punched waste is actually larger than that of the straight section of the knife edge, the waste is prevented from jumping up, and the scrap-jumping prevention effect is achieved.

2. The utility model discloses a multilayer holds in palm flitch has been designed, buffering can be carried out effectively.

3. The utility model provides a multilayer structure has all been designed to last lower mould, is convenient for change and fixed drift.

Drawings

The following describes the embodiments of the present utility model in further detail with reference to the drawings;

FIG. 1 is a schematic diagram of a structure of a punching scrap-jumping prevention die before processing;

FIG. 2 is a schematic diagram of a structure of the punching chip-jump preventing die in the utility model during processing;

FIG. 3 is an enlarged schematic view of the structure of the edge of the punching scrap-jump prevention die of the present utility model;

FIG. 4 is a schematic diagram of a structure of a punching scrap-jumping prevention die for processing at a knife edge;

FIG. 5 is a schematic diagram of a prior art structure;

in the drawings, each reference numeral is:

1-upper die, 101-upper die plate, 102-bearing layer, 103-fixed layer, 2-lower die, 201-lower die plate, 202-knife edge layer, 203-lower die bearing layer, 3-punch, 4-stripper plate, 401-buffer layer, 402-contact layer, 5-knife edge, 6-inverted cone inclined surface and 7-stripper opening.

Detailed Description

In order to more clearly illustrate the present utility model, the present utility model will be further described with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this utility model is not limited to the details given herein.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 5, a punching scrap-jumping prevention mold includes: the upper die 1 and the lower die 2, wherein a punch 3 is fixedly arranged on the upper die 1; a stripper plate 4 is arranged between the upper die 1 and the lower die 2; the punch 3 penetrates through the stripper plate 4; the lower die 2 is provided with a knife edge 5 corresponding to the punch 3, and an inverted conical inclined surface 6 is arranged at the feeding position of the knife edge 5.

Further, the upper die 1 includes: an upper template 101, a bearing layer 102 and a fixing layer 103; the bearing layer 102 and the fixing layer 103 are sequentially overlapped on the lower surface of the upper template 101; one end of the punch 3 passes through the fixing layer 103 and abuts against the bearing layer 102.

Further, the stripper plate 4 includes: a buffer layer 401 and a contact layer 402; the buffer layer 401 and the contact layer 402 are stacked, the buffer layer 401 is abutted against the upper die 1, and the contact layer 402 is abutted against the lower die 2.

Further, the lower die 2 includes: a lower die plate 201, a knife edge layer 202 and a lower die bearing layer 203; the knife edge layer 202 and the lower die bearing layer 203 are sequentially overlapped on the lower die plate 201, and the lower die plate 201, the knife edge layer 202 and the lower die bearing layer 203 are provided with a stripping opening 7; the knife edge 5 of the knife edge layer 202 is provided with an inverted conical inclined surface 6.

Further, the inclination of the inverted conical inclined surface is 5-15 degrees.

Further, the width of the feeding part of the knife edge is larger than the width of the punch.

The inverted conical inclined surface is additionally arranged at the knife edge, the upper part is large, the lower part is small, the shape of the punched waste is actually larger than that of the straight section of the knife edge, the waste is prevented from jumping up, and the scrap-jumping prevention effect is achieved. The multi-layer material supporting plate is designed, and can effectively buffer. The upper die and the lower die are all designed with multi-layer structures, so that the punch is convenient to replace and fix.

It should be understood that the foregoing examples of the present utility model are provided merely for clearly illustrating the present utility model and are not intended to limit the embodiments of the present utility model, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present utility model as defined by the appended claims.

Claims

1. The utility model provides a prevent jumping bits mould punches a hole which characterized in that includes: the upper die and the lower die are fixedly provided with a punch; a stripper plate is arranged between the upper die and the lower die; the punch penetrates through the stripper plate; the lower die is provided with a knife edge corresponding to the punch, and an inverted conical inclined surface is arranged at the feeding position of the knife edge.

2. The punch chip-jump preventing die according to claim 1, wherein said upper die comprises: the device comprises an upper template, a bearing layer and a fixing layer; the bearing layer and the fixing layer are sequentially overlapped on the lower surface of the upper template; one end of the punch head passes through the fixing layer to be abutted against the bearing layer.

3. The punch chip-jump preventing die according to claim 1, wherein said stripper plate comprises: a buffer layer and a contact layer; the buffer layer is overlapped with the contact layer, the buffer layer is abutted to the upper die, and the contact layer is abutted to the lower die.

4. The punch chip-jump preventing die according to claim 1, wherein the lower die comprises: the lower die plate, the knife edge layer and the lower die bearing layer; the knife edge layer and the lower die bearing layer are sequentially overlapped on the lower die plate, and the lower die plate, the knife edge layer and the lower die bearing layer are provided with a stripping opening; the knife edge of the knife edge layer is provided with an inverted cone-shaped inclined surface.

5. A punch chip-jump preventing die according to claim 4, wherein the inclination of the inverted conical inclined surface is 5-15 °.

6. The punch chip-jump preventing die according to claim 1, wherein the width of the feeding part of the knife edge is larger than the width of the punch.