CN107351183B

CN107351183B - Die-cut mould of zigzag plastic slab

Info

Publication number: CN107351183B
Application number: CN201710717993.8A
Authority: CN
Inventors: 赵国胜
Original assignee: San Neng Bake Ware Wuxi Co ltd
Current assignee: San Neng Bake Ware Wuxi Co ltd
Priority date: 2017-08-21
Filing date: 2017-08-21
Publication date: 2022-10-18
Anticipated expiration: 2037-08-21
Also published as: CN107351183A

Abstract

The invention provides a sawtooth-shaped plastic plate punching die, which comprises a core working part, a core working part and a positioning pin, wherein the core working part comprises a male die, a female die and a fixing plate, the male die is fixedly connected with the fixing plate through the positioning pin, a punching gap is formed between the male die and the female die, a punching cavity is formed in the middle of the female die, and anaerobic adhesive is coated in a first pin hole of the fixing plate, so that the processing precision requirement is reduced, and in addition, the uniform and consistent clearance between the male die and the female die can be ensured. The punching die can ensure that the section of a punched product is smooth and neat.

Description

Die-cut mould of zigzag plastic slab

Technical Field

The invention relates to the technical field of punching of non-metallic materials, in particular to a punching die for punching a sawtooth-shaped plastic plate.

Background

The die-cut technique of plastic slab can be to the plastic slab edge of user's demand die-cut different shapes, and this technique has considerable influence meaning no matter to the packing of product or product itself, however the die-cut technique of current plastic slab can cause the die-cut edge of plastic slab to appear deckle edge or the die-cut incomplete scheduling problem of plastic slab usually, and this has not only influenced the pleasing to the eye of product appearance, has also influenced the quality of product to a certain extent.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides a sawtooth-shaped plastic plate punching die which can ensure that the section of a punched product is smooth and neat.

According to the technical scheme provided by the invention, the core working part of the sawtooth-shaped plastic plate punching die comprises a male die, a female die and a fixing plate, wherein the male die is fixedly connected with the fixing plate through a positioning pin, a punching gap is formed between the male die and the female die, a punching cavity is formed in the middle of the female die, and anaerobic adhesive is coated in a first pin hole of the fixing plate, so that the machining precision requirement is reduced, and in addition, the uniform and consistent gaps between the male die and the female die can be ensured.

Further, the male die comprises a first section, a second section, a third section and a bottom surface.

Furthermore, the bottom surface of the convex die is triangular, each edge of the bottom surface is zigzag, and the first section, the second section and the third section of the convex die are respectively connected with each edge of the bottom surface.

Furthermore, the included angle between the first tangent plane and the bottom surface is less than 90 degrees.

Furthermore, the included angle between the second tangent plane and the bottom surface is less than 90 degrees, and the second tangent plane is connected with the first tangent plane.

Furthermore, an included angle between the third tangent plane and the bottom surface is smaller than 90 degrees, and the third tangent plane is connected with the first tangent plane.

Furthermore, the shape of the contour line of the upper top surface of the punching cavity is consistent with the shape of a processed product

The invention has the beneficial effects that:

1. the invention adopts the technical scheme of changing the included angle between the tangent plane and the bottom surface, and the technical scheme can improve the sharpness of the cutting edge, thereby ensuring that the cutting form is full extrusion separation and ensuring that the section of the product is smooth and neat.

2. According to the technical scheme, the anaerobic adhesive is adopted to connect the positioning pins, so that the requirement on the accuracy of pin hole processing is reduced, the error is reduced, and the punching gap between the male die and the female die can be adjusted, so that the punching gap is uniform and consistent.

Drawings

FIG. 1 is a schematic view of the present invention.

FIG. 2 is a schematic view of the male and female molds of the present invention.

Fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Fig. 4 is a sectional view B-B of fig. 1.

1. The die comprises a male die, 1-1 parts of a first cutting surface, 1-2 parts of a second cutting surface, 1-3 parts of a third cutting surface, 1-4 parts of a bottom surface, 1-5 parts of a second pin hole, 2 parts of a female die, 2-1 parts of a die cutting cavity, 3 parts of a fixing plate, 3-1 parts of a first pin hole, 4 parts of a positioning pin, 5 parts of a die cutting gap and 6 parts of anaerobic adhesive.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the core working component of the sawtooth-shaped plastic plate punching die comprises a male die 1, a female die 2 and a fixing plate 3, a punching gap 5 is formed between the male die 1 and the female die 2, a punching cavity 2-1 is formed in the middle of the female die, the shape of the contour line of the upper top surface of the punching cavity 2-1 is consistent with the shape of a processed product, a first pin hole 3-1 is formed in the fixing plate 3, anaerobic adhesive 6 is coated in the first pin hole 3-1, a second pin hole 1-5 is formed in the male die 1, one end of a positioning pin 4 is inserted into the first pin hole 3-1 coated with the anaerobic adhesive 6, the other end of the positioning pin 4 is inserted into the second pin hole 1-5, and the male die 1 and the fixing plate 3 are fixedly connected through the positioning pin 4. The anaerobic adhesive 6 can fix the positioning pin 4 in the first pin hole 3-1, and on the other hand, when the punching gap 4 between the male die 1 and the female die 2 needs to be adjusted, the anaerobic adhesive 6 is only needed to be removed. Therefore, the processing precision of the first pin hole 3-1 on the fixing plate 3 and the second pin hole 1-5 on the male die 1 can be reduced, the punching gap 5 between the male die 1 and the female die 2 can be adjusted to ensure the uniformity of the punching gap 5, and the punching gap 5 plays an important role in the punching process, so that the design can ensure the smooth and neat section of a product in the punching process.

As shown in fig. 4, the punch 1 comprises a first cut 1-1, a second cut 1-2, a third cut 1-3 and a bottom surface 1-4. The first section 1-1, the second section 1-2 and the third section 1-3 are three side surfaces of the male die 1. The first section 1-1 is trapezoidal, two waists of the first section 1-1 are respectively connected with the second section 1-2 and the third section 1-3, the bottom edge of the first section 1-1 is connected with the bottom surface 1-4, and an included angle between the first section 1-1 and the bottom surface 1-4 is smaller than 90 degrees, preferably 89 degrees. The bottom surface 1-4 is triangular, each side of the bottom surface is zigzag, the first cut surface 1-1 is connected with one side of the bottom surface 1-4, the second cut surface 1-2 and the third cut surface 1-3 are respectively connected with the other two sides of the bottom surface 1-4, the included angles between the second cut surface 1-2 and the third cut surface 1-3 and the bottom surface 1-4 are smaller than 90 degrees, preferably 89 degrees, when the included angle of 89 degrees is preferably adopted, on one hand, the hardness of the male die 1 can be ensured, on the other hand, the sharpness of the cutting edge of the male die 1 can be ensured, so that the cutting mode is full extrusion separation, and the section of a product is ensured to be smooth and neat.

Claims

1. The core working part of the sawtooth-shaped plastic plate punching die is characterized by comprising a male die (1), a female die (2) and a fixing plate (3), wherein the male die (1) is fixedly connected with the fixing plate (3) through a positioning pin (4), a punching gap (5) is formed between the male die (1) and the female die (2), a punching cavity (2-1) is formed in the middle of the female die, anaerobic adhesive (6) is coated in a first pin hole (3-1) of the fixing plate (3), and when the punching gap (5) between the male die (1) and the female die (2) needs to be adjusted, only the anaerobic adhesive (6) needs to be removed;

the male die (1) comprises a first section (1-1), a second section (1-2), a third section (1-3) and a bottom surface (1-4);

the bottom surface (1-4) of the male die (1) is triangular, each side of the bottom surface (1-4) is zigzag, and the first tangent plane (1-1), the second tangent plane (1-2) and the third tangent plane (1-3) of the male die (1) are respectively connected with each side of the bottom surface (1-4);

an included angle between the first tangent plane (1-1) and the bottom surface (1-4) is 89 degrees;

the included angle between the second tangent plane (1-2) and the bottom surface (1-4) is 89 degrees, and the second tangent plane (1-2) is connected with the first tangent plane (1-1);

the included angle between the third tangent plane (1-3) and the bottom surface (1-4) is 89 degrees, and the third tangent plane (1-3) is connected with the first tangent plane (1-1).

2. A matrix for the blanking of saw-tooth plastic plates according to claim 1, characterized in that the shape of the top contour of the blanking cavity (2-1) corresponds to the shape of the product to be processed.