CN214353837U

CN214353837U - Silica gel forming die capable of preventing flash

Info

Publication number: CN214353837U
Application number: CN202022564982.0U
Authority: CN
Inventors: 陈兵华; 徐文明
Original assignee: Suzhou Hotst Mould Co ltd
Current assignee: Haotes (Nantong) Precision Technology Co.,Ltd.
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-10-08
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a silica gel forming die for preventing flash, which comprises a female die core, a male die core and hard plastic, wherein the female die core, the male die core and the hard plastic are used for silica gel secondary forming injection molding, one side of the female die core is attached to the male die core, the male die core is provided with a forming groove, the female die core is provided with a matching groove matched with the forming groove corresponding to the forming groove, the hard plastic attached to the inner wall of the matching groove is arranged in the matching groove, the hard plastic, the matching groove and the forming groove jointly form a forming area, the forming area is used for placing silica gel, the connecting part of the forming area, the male die core and the hard plastic is provided with an inclined plane, the inclined plane is integrally formed on the male die core, and the top end of the inclined plane is intersected with the profile of the forming area; the utility model discloses an integrated into one piece has the inclined plane on public mould benevolence, has increased the resistance that silica gel flows to the binding face, has avoided silica gel to flow in the binding face and has produced the overlap, and then has improved silica gel post forming's quality and efficiency.

Description

Silica gel forming die capable of preventing flash

Technical Field

The utility model belongs to silica gel forming die's improvement, specifically speaking relate to one kind through integrated into one piece has the inclined plane on public mould benevolence, has increased the resistance that silica gel flows to the binding face, has avoided silica gel inflow binding face to produce the overlap, and then has improved silica gel post forming's quality and the silica gel forming die who prevents to produce the overlap of efficiency.

Background

As shown in fig. 1 and 2, one side of a cavity in a conventional silica gel secondary molding mold is attached to a core, and a molding region is formed between the core and the cavity, and the molding region is used for silica gel injection molding.

Therefore, an inclined plane is integrally formed on the male die core, so that the resistance of the silica gel to flow to the attaching surface is increased, the silica gel is prevented from flowing into the attaching surface to generate flash, and the quality and the efficiency of silica gel secondary forming are improved.

Disclosure of Invention

The utility model aims at overcoming prior art's not enough and providing one kind through integrated into one piece has the inclined plane on public mould benevolence, has increased the resistance that silica gel flows to the binding face, has avoided silica gel inflow binding face to produce the overlap, and then has improved the silica gel forming die who prevents to produce the overlap of silica gel post forming's quality and efficiency.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a prevent to produce silica gel forming die of overlap, is including the cavity benevolence, the public mould benevolence and the hard plastic that are used for silica gel post forming to mould plastics, cavity benevolence one side laminating is on public mould benevolence, the shaping groove has been seted up to public mould benevolence, cavity benevolence corresponds shaping groove position and sets up the cooperation groove with shaping groove looks adaptation, the hard plastic that fits in cooperation inslot wall is installed to the cooperation inslot, hard plastic is formed with the shaping district with cooperation groove and shaping groove jointly, the shaping district is used for placing silica gel, the inclined plane is seted up with public mould benevolence and hard plastic junction in shaping district, inclined plane integrated into one piece intersects in public mould benevolence and inclined plane top and shaping district profile.

Preferably, a joint surface is formed at the joint of the male die core and the female die core, the height from the top end of the inclined surface to the joint surface is 0.1-0.2 mm, and the angle formed between the inclined surface and the joint surface is 30-60 degrees.

Preferably, the joint of the male die core and the female die core is provided with a joint surface, the height of the top end of the inclined plane from the joint surface is 0.1mm, and the angle between the inclined plane and the joint surface is 45 degrees.

Preferably, the molding groove is semi-arc-shaped.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

a prevent to produce silica gel forming die of overlap, through integrated into one piece on public mould benevolence has the inclined plane, the sealing performance in silica gel shaping district has been improved jointly to inclined plane and public mould benevolence and rigid plastic, but the inclined plane has increased the resistance that free flow silica gel flowed in to the horizontal gap of binding face, has avoided silica gel to public mould benevolence and cavity benevolence binding face flow production overlap, and then has improved silica gel post forming's quality and efficiency.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1 is a cross-sectional view of a silica gel forming mold according to the prior art;

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

fig. 3 is a cross-sectional view of the silica gel forming mold for preventing flash generation according to the present invention;

FIG. 4 is an enlarged view of the portion B shown in FIG. 3;

FIG. 5 is a cross-sectional view of the core insert and cavity insert of the present invention;

reference numerals: 1. a cavity insert; 2. a core insert; 3. hard plastic cement; 4. a molding zone; 5. a binding face; 6. a bevel; 7. a mating groove; 8. and (5) forming a groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 3 and 4, a silica gel forming mold for preventing flash generation comprises a cavity insert 1, a core insert 2 and a hard plastic 3 for silica gel secondary forming injection molding, wherein the cavity insert 1 and the core insert 2 are made of metal materials, one side of the cavity insert 1 is attached to the core insert 2, the core insert 2 is provided with a semicircular forming groove 8, the cavity insert 1 is provided with a matching groove 7 matched with the forming groove 8 corresponding to the forming groove 8, the matching groove 7 is internally provided with the hard plastic 3 attached to the inner wall of the matching groove 7, the hard plastic 3, the matching groove 7 and the forming groove 8 together form a circular forming area 4, the forming area 4 is used for placing silica gel, the joint of the forming area 4, the core insert 2 and the hard plastic 3 is provided with an inclined plane 6, the inclined plane 6 is integrally formed with the core insert 2, and the top end of the inclined plane 6 intersects with the contour of the forming area 4, the joint of the male mold core 2 and the female mold core 1 is a joint surface 5, the angle between the top end of the inclined surface 6 and the joint surface 5 is 30-60, the optimal angle is 45 degrees in the embodiment, the height of the inclined surface 6 from the joint surface 5 is 0.1-0.2 mm, and the optimal angle is 0.1mm in the embodiment.

In the concrete use, the operator places the silica gel product after the one shot forming in shaping inslot 8, align shaping groove 8 with the cooperation groove 7 of cavity benevolence 1, slowly laminate on

core benevolence

2, 2 inclined planes 6 tops on core benevolence are crossing with shaping district 4 profiles this moment, insert the position of 3 fixed shaping districts 4 of hard plastic from inclined planes 6, carry out the secondary and mould plastics, because the existence on inclined planes 6 has avoided silica gel to flow from the gap of binding face 5, prevent to produce the overlap, and then improved silica gel post forming's quality and efficiency.

a prevent to produce silica gel forming die of overlap, through integrated into one piece inclined plane 6 on public mould benevolence 2, inclined plane 6 and public mould benevolence 2 and hard plastic 3 have improved the sealing performance of silica gel shaping district 4 jointly, but inclined plane 6 has increased the resistance that free flow silica gel flowed in to the horizontal gap of binding face 5, avoided silica gel to

public mould benevolence

2 and 1 binding face 5 of cavity benevolence to flow and produce the overlap, and then improved silica gel post forming's quality and efficiency.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a prevent to produce silica gel forming die of overlap, is including the cavity benevolence, the core mould benevolence and the hard plastic that are used for silica gel post forming to mould plastics, its characterized in that: the utility model discloses a silica gel injection molding device, including female mould benevolence, male mould benevolence, female mould benevolence one side laminating is on male mould benevolence, the shaping groove has been seted up to the male mould benevolence, the female mould benevolence corresponds shaping groove position and sets up the cooperation groove with shaping groove looks adaptation, the cooperation inslot is installed and is laminated in the hard plastic of cooperation inslot wall, hard plastic is formed with the shaping district jointly with cooperation groove and shaping groove, the shaping district is used for placing silica gel, the inclined plane is seted up with male mould benevolence and hard plastic junction in the shaping district, inclined plane integrated into one piece intersects in male mould benevolence and inclined plane top and shaping district profile.

2. The mold for molding silica gel with flash prevention according to claim 1, wherein: the male die core and the female die core are jointed to form a joint surface, the height from the top end of the inclined plane to the joint surface is 0.1 mm-0.2 mm, and the angle formed by the inclined plane and the joint surface is 30-60 degrees.

3. The mold for molding silica gel with flash prevention according to claim 2, wherein: the height of the top end of the inclined plane from the binding face is 0.1mm, and the angle formed between the inclined plane and the binding face is 45 degrees.

4. The mold for molding silica gel with flash prevention according to claim 1, wherein: the molding groove is in a semi-arc shape.