CN211194735U

CN211194735U - Elastic silica gel piece injection mold

Info

Publication number: CN211194735U
Application number: CN201921643440.3U
Authority: CN
Inventors: 刘裕春
Original assignee: Suzhou Yayiyou Mould Technology Co ltd
Current assignee: Suzhou Yayiyou Mould Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-08-07
Anticipated expiration: 2029-09-29

Abstract

The utility model provides an elastic silica gel spare injection mold, including cope match-plate pattern, lower bolster, be equipped with mould benevolence and lower mould benevolence between cope match-plate pattern and the lower bolster, go up and be equipped with the die cavity between mould benevolence and the lower mould benevolence, the symmetry is provided with two mold inserts in the die cavity, the relative one side of mold insert is not laminated and is connected with the elastic component, the mold insert lower part is equipped with L shape and links the board, L shape is even board one end stretches out from the lower bolster, the other end vertical upwards with the mold insert bottom is fixed, L shape is connected with the cylinder on linking the board, two L shape is even passed between the board there is the thimble, the thimble stretch in two mold insert tops, this mould is through two valve blocks that can finely tune, before guaranteeing the die sinking, with pulling out between valve block and the silica gel, reduce the adhesion, cooperates the blow hole simultaneously, effectively with product and mould benevolence separation, and the product is upwards blown through the thimble that has.

Description

Elastic silica gel piece injection mold

Technical Field

The utility model relates to a mould processing field especially relates to elastic silica gel spare injection mold.

Background

After the existing plastic product is injection molded, in order to facilitate the product to be taken out of the mold, the product generally needs to be automatically demolded, and various existing product demolding modes are available, such as ejecting the product out of a rear mold through an ejector pin, or ejecting the product out of the mold through air pressure by injecting high-pressure air, wherein the air pressure is communicated with a mold cavity, and demolding is realized.

However, the product shown in fig. 4 is a silicone part, the surface is corrugated, and the special insert and the mold cavity are required for injection molding due to the special shape, but with such a structure, the product is difficult to eject and is easily damaged by using a simple ejection mechanism during film ejection.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an elastic silica gel spare injection mold, including cope match-plate pattern, lower bolster, be equipped with the benevolence and lower mould benevolence between cope match-plate pattern and the lower bolster, go up and be equipped with the die cavity between the benevolence and the lower mould benevolence, the symmetry is provided with two mold inserts in the die cavity, the one side that the mold insert is relative is not laminated and is connected with the elastic component, the mold insert lower part is equipped with L shape even board, L shape even board one end is stretched out from the lower bolster, the other end vertical upwards with the mold insert bottom is fixed, L shape is connected with the cylinder on the even board, two L shape has passed the thimble even between the board, the thimble stretches in two mold.

Preferably, the outer wall of the insert is provided with a continuous S shape, an air outlet channel is arranged in the insert, and the tail end of the air outlet channel corresponds to the protruding part or the inward-sinking part of the outer wall respectively.

Preferably, an air inlet channel is arranged in the L-shaped connecting plate, and the air inlet channel is communicated with the air outlet channel.

Preferably, the elastic member is a spring or a silica gel block.

Preferably, a semicircular groove is formed in the opposite surface of the insert and used for being matched with the thimble.

Preferably, the center of the thimble is provided with an air inlet slot hole.

The utility model provides an elasticity silica gel spare injection mould has following beneficial effect: the mold has the advantages that the valve blocks can be finely adjusted through the two valve blocks, before mold opening is guaranteed, the valve blocks and silica gel are pulled out, adhesion is reduced, the air blowing holes are matched, products are effectively separated from mold cores, the ejector pins with air holes blow air upwards when the products are ejected out, the products are blown out through air flow, and damage to the products is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic side view of the present invention;

fig. 2 is a schematic view of the insert of the present invention;

fig. 3 is a top view of the insert of the present invention;

FIG. 4 is a schematic illustration of a prior art product;

the mold comprises an upper mold plate 1, a lower mold plate 2, an upper mold core 3, a lower mold core 4, a mold cavity 5, a mold insert 6, a connecting plate 7 and L, a cylinder 8, a thimble 9, an air outlet channel 10, an air inlet channel 11, an elastic piece 12, a semicircular groove 13.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 and 2, the utility model provides an elastic silica gel piece injection mold, including cope match-plate pattern 1, lower bolster 2, be equipped with upper die benevolence 3 and lower mould benevolence 4 between cope match-plate pattern 1 and the lower bolster 2, be equipped with die cavity 5 between upper die benevolence 3 and the lower mould benevolence 4, in this application, the shape of die cavity 5 is continuous wave, die cavity 5 internal symmetry is provided with two mold inserts 6, and the shape of mold insert 6 corresponds with the shape of die cavity 5 to obtain the shape of required product, one side that mold insert 6 is relative is not laminated and is connected with elastic component 12, one side that mold insert 6 is relative is the inclined plane, and elastic component 12 connected is spring or silica gel piece, and the spring is in compression state, mold insert 6 lower part is equipped with L shape even board 7, and the spring also can set up between two L shape even boards 7, L shape even board 7 one end stretches out from the lower bolster 2 from the side, the other end is vertical upwards with fixed with insert 6 bottom, be connected with cylinder 8 on L shape even board 7, two the L shape even board 7 pass between the thimble 9, insert 9 is equipped with thimble 9, the thimble 9 is used for the cooperation relatively.

When the mold is closed, the cylinder 8 pushes the mold inserts 6 to be in place, the mold is opened after injection molding, the cylinders 8 on two sides extend out, the L-shaped connecting plate 7 is slightly adjusted to be close to each other, namely, the two mold inserts 6 are driven to mutually approach in a small distance, so that the mold inserts 6 can be separated from injection molding products, meanwhile, an air inlet channel 11 is arranged in the L-shaped connecting plate 7, the air inlet channel 11 is communicated with an air outlet channel 10, air enters the end part of the L-shaped connecting plate 7, high-pressure air is discharged from the air outlet channel 10, and due to the fact that the silica gel piece is slightly pressurized after being pressurized, the silica gel piece can be separated from the mold.

At the moment, the product is separated from the insert 6 and the die cavity 5, the center of the ejector pin 9 is provided with an air inlet slot hole, air is fed through the middle ejector pin 9, the product can be blown out and demoulded quickly, and the stability of the product in demoulding and no mark on the surface of the product are ensured.

The outer wall of the insert 6 is provided with a continuous S shape, the insert 6 is internally provided with an air outlet channel 10, the tail end of the air outlet channel 10 corresponds to a protruding part or an inward sunken part of the outer wall respectively, the positions of the sunken part and the protruding part are most easily adhered, air is blown at the position, and the mold stripping effect is good.

Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An elastic silica gel piece injection mold comprises an upper mold plate and a lower mold plate, wherein an upper mold core and a lower mold core are arranged between the upper mold plate and the lower mold plate, the mold is characterized in that a mold cavity is arranged between the upper mold core and the lower mold core, two mold inserts are symmetrically arranged in the mold cavity, one sides of the mold inserts opposite to each other are not attached and are connected with elastic pieces, L-shaped connecting plates are arranged at the lower parts of the mold inserts, one ends of the L-shaped connecting plates extend out of the lower mold plate, the other ends of the L-shaped connecting plates are vertically and upwards fixed with the bottoms of the mold inserts, air cylinders are connected onto the L-shaped connecting plates, and thimbles penetrate between the two L.

2. The injection mold for elastic silica gel pieces as claimed in claim 1, wherein the insert has a continuous S-shape on its outer wall, and an air outlet channel is provided in the insert, and the end of the air outlet channel corresponds to the protrusion or the indentation of the outer wall, respectively.

3. The injection mold of claim 2, wherein an air inlet channel is formed in the L-shaped connecting plate, and the air inlet channel is communicated with the air outlet channel.

4. The injection mold of claim 1, wherein the elastic member is a spring or a silicone block.

5. The elastomeric silicone part injection mold of claim 1, wherein said insert has a semi-circular groove on opposing faces for engagement with said pin.

6. The injection mold for an elastic silica gel member as claimed in claim 1, wherein said ejector pin is centrally provided with an air inlet slot.