CN215750371U

CN215750371U - Burr-free silica gel sealing gasket mold

Info

Publication number: CN215750371U
Application number: CN202121891145.7U
Authority: CN
Inventors: 詹海军; 张思儒; 余建平
Original assignee: Dongguan Juyan Silicone Technology Co ltd
Current assignee: Dongguan Juyan Silicone Technology Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-02-08
Anticipated expiration: 2031-08-12

Abstract

The utility model relates to the technical field of sealing gasket production dies, and discloses a burr-free silica gel sealing gasket die which comprises an upper die plate, a lower die plate, a wall retaining groove and a substrate groove, wherein a plurality of forming areas are arranged between the upper die plate and the lower die plate, a plurality of forming cavities are uniformly arranged in each forming area, the wall retaining groove is arranged along the edge of each forming area, a wall retaining punching and shearing opening is arranged between the wall retaining groove and the outer side forming cavity, the substrate groove is arranged between the adjacent forming cavities, and a substrate punching and shearing opening is arranged between the end part of the substrate groove and the corresponding forming cavity.

Description

Burr-free silica gel sealing gasket mold

Technical Field

The utility model relates to the technical field of sealing gasket production molds, in particular to a burr-free silica gel sealing gasket mold.

Background

The sealed pad of silica gel can be processed into different sizes and shapes according to the demand, and traditional silica gel compression moulding can produce 0.1 mm's deckle edge in the position of compression moulding mould joint line, and deckle edge can influence the sealed leakproofness of pad of silica gel and the pleasing to the eye degree in surface, and the sealed pad mould of current silica gel has following defect:

(1) the formed silica gel sealing gaskets are mutually independent, manual demoulding is needed to be carried out in sequence, and the demoulding difficulty is high.

(2) The deckle edge that produces during the shaping needs to be got rid of through artifical aftertreatment process, leads to production efficiency low, the defect that the human cost is high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide the burr-free silica gel sealing gasket mold, which is simpler in demolding, is convenient for quickly realizing product separation through subsequent punching, improves the production efficiency and ensures the product quality.

The purpose of the utility model is realized by adopting the following technical scheme:

a burr-free silica gel sealing gasket mold comprises a mold upper plate, a mold lower plate, a wall blocking groove and a substrate groove, wherein a plurality of molding areas are arranged between the mold upper plate and the mold lower plate, and a plurality of molding cavities are uniformly arranged in each molding area;

the retaining wall groove is arranged along the edge of the forming area, and a retaining wall punching and shearing opening is formed between the retaining wall groove and the forming cavity on the outer side;

the substrate groove is arranged between the adjacent molding cavities, and a substrate punching and shearing opening is arranged between the end part of the substrate groove and the molding cavity corresponding to the substrate groove.

Further, the number of the molding regions is 9.

Further, the number of the molding cavities in each molding area is 16.

Furthermore, the wall blocking groove comprises a horizontal part and an extending part, the horizontal part extends along the upper end face of the forming area, and the extending part extends along the depth direction of the forming cavity.

Further, an included angle between the extending portion and the horizontal portion is an acute angle.

Further, the substrate groove comprises a connecting portion and symmetrical portions, the connecting portion is arranged between the adjacent forming cavities, the symmetrical portions are symmetrically arranged on two sides of the connecting portion, and the symmetrical portions extend in the depth direction of the forming cavities.

Further, the thickness of the connecting part is 0.3 mm.

Compared with the prior art, the utility model has the beneficial effects that:

(1) be provided with substrate groove and barricade groove, the sealed pad of silica gel is at the shaping back of intracavity, and the sealed pad of silica gel links to each other with sealed pad of silica gel in the substrate inslot formation substrate for each sealed pad of silica gel can deviate from simultaneously when the demolding, has reduced the degree of difficulty of drawing of patterns.

(2) The retaining wall punching and shearing opening and the substrate punching and shearing opening are arranged, punching can be carried out on positions corresponding to the retaining wall punching and shearing opening and the substrate punching and shearing opening through the cutting die punching equipment after demolding, product separation can be achieved through one-time punching, the defect that multiple times of punching leads to punching lock waists is avoided, and meanwhile the condition that burrs lead to product failure can be avoided.

The utility model not only has simpler demoulding, but also is convenient for realizing the product separation quickly through punching in the follow-up process, improves the production efficiency and ensures the product quality.

Drawings

FIG. 1 is a schematic partial structure diagram according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1;

FIG. 3 is an enlarged view of the point B in FIG. 1;

FIG. 4 is a top view of a lower plate of a mold in an embodiment of the utility model;

FIG. 5 is a schematic structural diagram of a molding region in an embodiment of the present invention.

In the figure: 1. a mould is arranged on the plate; 2. a lower plate of the mold; 21. a molding zone; 3. a molding cavity; 4. a retaining wall groove; 41. a horizontal portion; 42. an extension portion; 5. a substrate slot; 51. a connecting portion; 52. a symmetrical portion; 6. punching and shearing the retaining wall; 7. and punching and shearing the substrate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

As shown in fig. 1-5, a burr-free silica gel sealing gasket mold comprises a mold upper plate 1, a mold lower plate 2, a retaining wall groove 4 and a substrate groove 5, wherein a plurality of molding areas 21 are arranged between the mold upper plate 1 and the mold lower plate 2, a plurality of molding cavities 3 are uniformly arranged in each molding area 21, and the molding cavities 3 are used for accommodating silica gel sealing gaskets for molding.

The edge setting of forming zone 21 is followed to retaining wall groove 4, and retaining wall groove 4 forms the rectangle region, and shaping chamber 3 sets up in the rectangle region, forms the barricade in retaining wall groove 4 when the shaping for the sealed product location of filling up of silica gel is provided with barricade die-cut mouth 6 between retaining wall groove 4 and the outside shaping chamber 3.

The substrate groove 5 is arranged between the adjacent molding cavities 3, a substrate punching and shearing opening 7 is arranged between the end part of the substrate groove 5 and the corresponding molding cavity 3, and a substrate is formed in the substrate groove 5 during molding and is used for connecting adjacent silica gel sealing gasket products.

As a preferred embodiment, the number of the molding areas 21 is 9, the molding areas 21 are uniformly distributed in three rows and three columns, the number of the molding cavities 3 in each molding area 21 is 16, the molding cavities 3 are uniformly distributed in four rows and four columns, the molding areas 21 are separated from each other, the molding areas 21 are conveniently and individually treated, and the yield of the silicone gaskets can be improved by the molding cavities 3.

As a preferred embodiment, the retaining wall groove 4 includes a horizontal portion 41 and an extended portion 42, the horizontal portion 41 is disposed to extend along the upper end surface of the molding zone 21, and the extended portion 42 is disposed to extend along the depth direction of the molding cavity 3. The included angle between the extending part 42 and the horizontal part 41 is an acute angle, so that the connection strength of the horizontal part 41 and the extending part 42 is improved, the positioning effect of a retaining wall formed after the retaining wall groove 4 is formed on the rubber sealing pad is ensured, raw materials are prevented from overflowing out of the retaining wall, and the raw materials are saved.

In a preferred embodiment, the substrate slot 5 includes a connecting portion 51 and a symmetrical portion 52, the connecting portion 51 is disposed between adjacent molding cavities 3, two symmetrical portions 52 are symmetrically disposed on two sides of the connecting portion 51, the symmetrical portions 52 extend along the depth direction of the molding cavities 3, the symmetrical portions 52 on two sides are respectively connected with the corresponding molding cavities 3 through the substrate punching openings 7, and the symmetrical portions 52 are used for improving the connection strength of the molded substrate.

In a preferred embodiment, the thickness of the connecting portion 51 is 0.3mm, which can save raw material of the product and facilitate punching and demolding.

Silica gel raw materials get into the mould upper plate 1 and mould 2 between become die cavity 3 in, the sealed pad of silica gel is at the shaping back in die cavity 3, forms the barricade in the barricade groove 4, and the barricade forms the raw materials that the rectangle region is used for fixing a position edge becomes die cavity 3, simultaneously, forms the sealed pad of substrate with silica gel in the substrate groove 5 and links to each other for each sealed pad of silica gel can be deviate from simultaneously when the demolding, has reduced the degree of difficulty of drawing of patterns. The die-cut equipment of accessible cutting die after the drawing of patterns corresponds barricade die-cut mouth 6 and substrate die-cut mouth 7's position and carries out die-cut, realizes the product separation immediately through once die-cut, has avoided leading to the die-cut defect of locking the waist of many times, can avoid the deckle edge to lead to the bad condition of product simultaneously.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a no deckle edge silica gel sealed pad mould which characterized in that: the die comprises an upper die plate, a lower die plate, a retaining wall groove and a substrate groove, wherein a plurality of forming areas are arranged between the upper die plate and the lower die plate, and a plurality of forming cavities are uniformly arranged in each forming area;

2. The burr-free silicone gasket mold according to claim 1, wherein: the number of the molding regions is 9.

3. The burr-free silicone gasket mold according to claim 1, wherein: the number of the molding cavities in each molding area is 16.

4. The burr-free silicone gasket mold according to claim 1, wherein: the wall blocking groove comprises a horizontal part and an extending part, the horizontal part extends along the upper end face of the forming area, and the extending part extends along the depth direction of the forming cavity.

5. The burr-free silicone gasket mold according to claim 4, wherein: the included angle between the extending part and the horizontal part is an acute angle.

6. The burr-free silicone gasket mold according to claim 1, wherein: the substrate groove comprises a connecting portion and a symmetrical portion, the connecting portion is arranged between the adjacent forming cavities, the symmetrical portion is symmetrically arranged on two sides of the connecting portion, and the symmetrical portion is arranged in an extending mode in the depth direction of the forming cavities.

7. The burr-free silicone gasket mold according to claim 6, wherein: the thickness of connecting portion is 0.3 mm.