CN218079883U

CN218079883U - Stamping die of positive and negative cut product

Info

Publication number: CN218079883U
Application number: CN202222098078.4U
Authority: CN
Inventors: 郑劲松
Original assignee: Huangyu Precision Technology Suzhou Co ltd
Current assignee: Huangyu Precision Technology Suzhou Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-12-20
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a stamping die for positive and negative cut products, which comprises an upper die base and a lower die base which are arranged up and down, wherein an upper padding plate, an upper clamping plate and a stripper plate are sequentially connected below the upper die base from top to bottom, and a lower padding plate and a lower template are sequentially arranged above the lower die base from bottom to top; a nitrogen spring is arranged in the upper die base, an upper die ejector plate is connected below the nitrogen spring, upper die knife edges are respectively connected at the front end and the rear end below the upper die ejector plate, a knife edge inner support is arranged between the two upper die knife edges, the lower end of a compression spring is connected above the knife edge inner support, and the upper end of the compression spring is connected with the lower surface of the upper die ejector plate; a lower die material supporting block and a punch fixing block are arranged in the lower die plate from top to bottom, and a lower die punch is fixed in the fixing block; a blanking punch is fixed in the upper clamping plate and the stripper plate, and a lower die knife edge is arranged in the lower die plate and below the blanking punch. The utility model provides a pair of stamping die of positive and negative surely falling product can guarantee that the product two sides all forms the corner collapse unhairing limit, reduces product manufacturing cost.

Description

Stamping die of positive and negative cut product

Technical Field

The utility model relates to a stamping die of positive and negative surely falling product belongs to material area cutting die technical field.

Background

In the prior art, the general cutting mode of the stamping die production material belt is as follows: and when the material belt product is half cut downwards in the stamping process, the material belt product is incompletely cut off, and the material belt is ejected out of the material belt product from top to bottom in the post process. The product that drops easily when half cutting is too much, and back process deckle edge is big when too little, and the product after cutting generally needs additionally to grind the processing, and the flow is comparatively complicated and increases extra cost.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is, overcome prior art's defect, provide a stamping die of positive and negative surely falling product, can guarantee that the product two sides all forms the corner collapse unhairing limit, reduce product manufacturing cost.

In order to solve the technical problem, the utility model discloses a technical scheme does:

a stamping die for positive and negative cut products comprises an upper die base and a lower die base which are arranged up and down, wherein the upper die base is arranged below a punch press, the lower die base is arranged on a base, an upper padding plate, an upper clamping plate and a stripper plate are sequentially connected to the lower surface of the upper die base from top to bottom, and a lower padding plate and a lower template are sequentially arranged on the lower die base from bottom to top; a nitrogen spring is arranged in the upper die base, an upper die ejector plate is connected below the nitrogen spring, upper die knife edges are respectively connected to the front end and the rear end of the lower surface of the upper die ejector plate, the upper die knife edges slide up and down in the upper clamping plate and the stripper plate, a knife edge inner support is arranged between the two upper die knife edges, the upper surface of the knife edge inner support is connected with the lower end of a compression spring, and the upper end of the compression spring is connected with the lower surface of the upper die ejector plate; a lower die material supporting block and a punch fixing block are arranged in the lower template from top to bottom, a lower die punch is fixed in the fixing block, the upper end of the lower die punch is higher than the lower die material supporting block, the lower die punch is positioned right below the knife edge inner support, and the lower die material supporting block is positioned right below the upper die knife edge; a blanking punch is fixed in the upper clamping plate and the stripper plate, and a lower die knife edge is arranged in the lower die plate and below the blanking punch; the material belt is positioned between the upper die knife edge and the lower die material supporting block and between the blanking punch and the lower die knife edge. .

And when the die is closed and is cut upwards and half, the lower die punch cuts into the material belt by the depth of 0.5-0.7 time of the thickness of the material belt.

And when the die is closed and is cut upwards and half, the lower die punch cuts into the material belt by the depth which is 0.6 times of the thickness of the material belt.

And the lower backing plate and the lower die seat are provided with channels for the material belt to fall after being cut off.

The single side of the blanking gap between the lower die punch and the upper die knife edge is-0.05 mm.

The blanking punch is 0.05mm smaller than the single-side gap of the material belt.

The utility model has the advantages that: the utility model provides a pair of stamping die of positive and negative surely product, positive and negative surely structure divides two steps to accomplish, and first step is half cut upwards, and the second step is normally cut downwards, and the product two sides all forms the corner collapse unhairing limit, can reduce product manufacturing cost.

Drawings

FIG. 1 is a schematic structural view of a stamping die for positive and negative cut products according to the present invention;

FIG. 2 is an enlarged schematic view of the cutting position in FIG. 1 (a is an upward half cut, and b is a downward half cut);

fig. 3 is an enlarged schematic structural view of the product after cutting.

The reference numbers in the figures are as follows: 1-an upper die holder; 2-a nitrogen spring; 3-an upper die ejector plate; 4, arranging a base plate; 5, an upper splint; 6-stripping plate; 7-compression spring; 8-supporting the knife edge; 9-upper die blade; 10-a lower template; 11-punch fixing block; 12-lower die punch; 13-blanking punch; 14-lower die blade; 15-material belt; 16-lower backing plate; 17-a lower die holder; 18-lower mould supporting block; 151-collapsed corner region; 152-a tear strip; 153-bright band.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and the following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The utility model discloses a stamping die of positive and negative surely product, including upper die base 1 and the die holder 17 that sets up from top to bottom, upper die base 1 sets up below the punch press, and die holder 17 sets up on the base. An upper backing plate 4, an upper clamping plate 5 and a stripper plate 6 are sequentially connected from top to bottom below the upper die base 1, and a lower backing plate 16 and a lower die plate 10 are sequentially arranged from bottom to top above the lower die base 17. Be provided with nitrogen spring 2 in the upper die base 1, be connected with mould liftout plate 3 below nitrogen spring 2, go up mould liftout plate 3 below front and back both ends and be connected with mould edge of a knife 9 respectively, go up mould edge of a knife 9 and slide from top to bottom in punch holder 5 and stripper plate 6, nitrogen spring 2 drives mould edge of a knife 9 and fixes material area 15.

A knife edge inner support 8 is arranged between the two upper die knife edges 9, the upper surface of the knife edge inner support 8 is connected with the lower end of a compression spring 7, and the upper end of the compression spring 7 is connected with the lower surface of the upper die ejector plate 3. In the normal state, the compression spring 7 is in the extended state, and the knife edge inner support 8 is in the lower position.

A lower die supporting material block 18 and a punch fixing block 11 are arranged in the lower template 10 from top to bottom, a lower die punch 12 is fixed in the fixing block 11, and the height of the upper end of the lower die punch 12 is larger than that of the lower die supporting material block 18. The lower die punch 12 is positioned right below the knife edge inner support 8, and the lower die support block 18 is positioned right below the upper die knife edge 9. As shown in FIG. 2, the blanking gap between the lower die punch 12 and the upper die blade 9 is-0.05 mm. The utility model discloses the first step is upwards half-cut, and when the mould compound die was upwards half-cut, lower mould punching pin 12 cut into the material area 15 degree of depth and is 0.5 ~ 0.7 times of 15 thicknesses in the material area. When the lower die punch 12 half cuts the material strip 15 upwards, the knife edge inner support 8 contacts with the upper surface of the material strip 15, and the knife edge inner support 8 moves upwards.

A blanking punch 13 is fixed in the upper clamping plate 5 and the stripper plate 6, and a lower die knife edge 14 is arranged in the lower die plate 10 and below the blanking punch 13; the material belt 15 is positioned between the upper die knife edge 9 and the lower die material supporting block 18 and between the blanking punch 13 and the lower die knife edge 14. As shown in fig. 2, the blanking punch 13 is 0.05mm smaller than the single-side gap of the material belt 15, so that the metal wires can be prevented from being scraped. In addition, the blanking gap is calculated by taking the thickness of the half-cut residual material in the first step. The utility model discloses the second step is half cut downwards, and when the mould compound die was half cut upwards, lower mould punching pin 12 cut into the material and takes 15 degree of depth to be the 0.6 times of 15 thickness in the material. The lower backing plate 16 and the lower die base 17 are provided with channels for the cut material belt 15 to fall down, and the cut material belt 15 products fall down from the channels.

As shown in FIG. 3, the utility model discloses material area product both sides after the processing are including the region 151 that collapses, tear area 152 and bright area 153 respectively, and the product both sides all form the no deckle edge of corner collapse, do not need additionally to grind the processing, can reduce product manufacturing cost.

The above is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, a plurality of modifications and decorations can be made, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a stamping die of positive and negative surely falling product which characterized in that: the punching die comprises an upper die holder (1) and a lower die holder (17) which are arranged up and down, wherein the upper die holder (1) is arranged below a punching machine, the lower die holder (17) is arranged on a base, an upper padding plate (4), an upper clamping plate (5) and a stripper plate (6) are sequentially connected to the lower surface of the upper die holder (1) from top to bottom, and a lower padding plate (16) and a lower die plate (10) are sequentially arranged on the upper surface of the lower die holder (17) from bottom to top; a nitrogen spring (2) is arranged in the upper die holder (1), an upper die ejector plate (3) is connected below the nitrogen spring (2), upper die knife edges (9) are connected to the front end and the rear end of the lower surface of the upper die ejector plate (3) respectively, the upper die knife edges (9) slide up and down in the upper clamping plate (5) and the stripper plate (6), a knife edge inner support (8) is arranged between the two upper die knife edges (9), the lower end of a compression spring (7) is connected to the upper surface of the knife edge inner support (8), and the upper end of the compression spring (7) is connected to the lower surface of the upper die ejector plate (3); a lower die supporting block (18) and a punch fixing block (11) are arranged in the lower template (10) up and down, a lower die punch (12) is fixed in the fixing block (11), the height of the upper end of the lower die punch (12) is greater than that of the lower die supporting block (18), the lower die punch (12) is positioned right below the knife edge inner support (8), and the lower die supporting block (18) is positioned right below the upper die knife edge (9); a blanking punch (13) is fixed in the upper clamping plate (5) and the stripper plate (6), and a lower die knife edge (14) is arranged in the lower die plate (10) and below the blanking punch (13); the material belt (15) is positioned between the upper die knife edge (9) and the lower die material supporting block (18) and between the blanking punch (13) and the lower die knife edge (14).

2. The stamping die for positive and negative cut-off products as claimed in claim 1, wherein: when the die is closed and is cut upwards, the lower die punch (12) cuts into the material belt (15) by 0.5-0.7 time of the thickness of the material belt (15).

3. The stamping die for positive and negative cut-off products as claimed in claim 2, wherein: when the die is closed and is cut upwards, the lower die punch (12) cuts into the material belt (15) by 0.6 time of the thickness of the material belt (15).

4. The stamping die for positive and negative cut-off products as claimed in claim 1, wherein: and the lower backing plate (16) and the lower die seat (17) are provided with channels for the material belt (15) to fall after being cut off.

5. The stamping die for positive and negative cut-off products as claimed in claim 1, wherein: the single side of the blanking gap between the lower die punch (12) and the upper die knife edge (9) is-0.05 mm.

6. The stamping die for positive and negative cut products as claimed in claim 5, wherein: the blanking punch (13) is smaller than the single-side gap of the material belt (15) by 0.05mm.