CN210477708U

CN210477708U - Fluorine rubber sealing ring mold

Info

Publication number: CN210477708U
Application number: CN201921242017.2U
Authority: CN
Inventors: 陈碧龙; 洪妤姗; 林伟煌; 陈臻
Original assignee: Xiamen Hotvs Technology Co ltd
Current assignee: Xiamen Hotvs Technology Co ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-05-08
Anticipated expiration: 2029-08-02

Abstract

The utility model discloses a fluorine rubber seal circle mould relates to mould technical field, including the die cavity board, the die cavity apron, go up core and lower core, be equipped with the recess that is used for shaping fluorine rubber seal circle in the die cavity board, lower core sets up in the die cavity board, the upper end holding of lower core is and be the round platform form of invering in the recess of die cavity board, go up core and die cavity apron rigid coupling, the lower tip of going up the core is the round platform form of invering, die cavity apron superpose seals the recess in die cavity board top during the compound die, and the lower tip of going up the core supports the upper end of core down in the recess in order to be used for the hole of shaping fluorine rubber seal circle. The product has 2 circles of umbrella-shaped back-off similar to rain, the processing of the existing mould is very complicated, the design scheme skillfully designs the mould core into a split type, the processing difficulty is reduced, after the mould is opened, the product is retained in the rear mould, the lower mould core is ejected out of the mould cavity together with the product under the action of spring force, and then the product is manually taken.

Description

Fluorine rubber sealing ring mold

Technical Field

The utility model relates to the technical field of mold, especially, relate to a fluorine rubber seal circle mould.

Background

Fig. 1 is a structural diagram for a seal ring used in an aircraft generator, which rotates at a high use temperature, and a conventional rubber or silica gel seal ring is easily aged and worn in a high heat, dynamic and high sealing environment, resulting in problems of oil leakage and the like. Compared with silica gel, fluorine gel is more acid and alkali resistant and resistant to higher use temperature, so that some manufacturers adopt fluorine gel materials to manufacture the sealing ring so as to meet the use requirements.

Compared with silica gel, fluorine gel has the advantages of acid and alkali resistance and higher use temperature resistance, and has the defect of extremely high price, wherein the price of each kilogram of solid silica gel material is more than five hundred yuan, and the price of each kilogram of liquid fluorine gel material is thousands yuan. At present, few manufacturers for preparing fluorine rubber on the market have insufficient experience, so that the fluorine rubber sealing ring has great market demand.

At present, the mould pressing technology is mostly adopted for manufacturing the sealing ring, the production cycle of the mould pressing technology is long, the efficiency is low, the size precision of a product is poor, the problem of edge overflow exists, and a lot of waste is caused to materials. In addition, as shown in fig. 1, the inside of the sealing ring has two reverse buckles, so that the core and the cavity of the mold adopted by manufacturers on the market for producing the sealing ring are complex to process, and the sealing ring is difficult to demould.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fluorine rubber seal circle mould to solve the problem that current mould structure is complicated, be difficult to make the fluorine rubber seal circle drawing of patterns that has two back-offs.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a fluorine glue sealing washer mould, including the die cavity board, the die cavity apron, upper core and lower core, be equipped with the recess that is used for shaping fluorine glue sealing washer in the die cavity board, lower core sets up in the die cavity board, the upper end holding of lower core is in the recess of die cavity board and be the round platform form of invering, upper core and die cavity apron rigid coupling, the lower tip of upper core is the round platform form of invering, the die cavity apron superposes and seals the recess above the die cavity board during the compound die to the lower tip of upper core butts the upper end of lower core in the recess and is used for shaping fluorine glue sealing washer's hole.

Further, the lower end of the upper core is coaxial with the upper end of the lower core.

Furthermore, the lower end part of the upper mold core is provided with a positioning groove, the upper end part of the lower mold core is convexly provided with a positioning bulge matched with the positioning groove, and the positioning bulge is inserted into the positioning groove during mold closing so as to realize mutual positioning of the upper mold core and the lower mold core.

Furthermore, the positioning bulge is in a round table shape or a quadrangular frustum pyramid shape.

Further, the upper mold core and the cavity cover plate are integrally formed.

Furthermore, a spring is arranged at the lower end of the lower mold core, when the mold is closed, the lower mold core is pushed by the upper mold core to compress the spring, and when the mold is opened, the spring rebounds and pushes the lower mold core to move upwards so that the upper end of the lower mold core protrudes relative to the mold cavity plate.

Compared with the prior art, the utility model has the advantages of it is following:

1. the product has 2 circles of umbrella-shaped back-off similar to rain, the processing of the existing mould is very complicated, the design scheme skillfully designs the mould core into a split type, the processing difficulty is reduced, after the mould is opened, the product is retained in the rear mould, the lower mould core is ejected out of the mould cavity together with the product under the action of spring force, and then the product is manually taken. Due to the fluorine glue design concept, the processing method is skillfully simplified, and the product is ejected out by means of the elastic force, so that the product is convenient to take.

2. The raw and other materials of product are more expensive, the utility model discloses an injection moulding technology replaces current mould pressing technology, has reduced the waste of waste materials such as excessive limit as far as possible.

3. Multiple cavities are developed, the labor cost is reduced, and continuous production can be realized.

4. Ingenious processing ensures that the die structure is greatly simplified and the forming is rapid.

Drawings

Fig. 1 shows a cross-sectional view of a fluorine rubber seal ring of the present embodiment;

fig. 2 is a partial structural view of a mold closing state of a fluorine rubber gasket mold according to an embodiment of the present invention;

fig. 3 is a partial structural view of the fluorine rubber gasket mold in the mold opening state according to the embodiment of the present invention;

fig. 4 is a front view of a cavity plate according to an embodiment of the present invention.

Detailed Description

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

Referring to fig. 1 to 4, the embodiment provides a fluorine rubber gasket mold, which includes a cavity plate 1, a cavity cover plate 2, an upper core 3 and a lower core 4, wherein a groove 11 for forming a fluorine rubber gasket 10 is disposed in the cavity plate 1, the lower core 4 is disposed in the cavity plate 1, an upper end of the lower core 4 is accommodated in the groove 11 of the cavity plate 1 and is in an inverted circular truncated cone shape, the upper core 3 is fixedly connected to the cavity cover plate 2, a lower end of the upper core 3 is in an inverted circular truncated cone shape, the cavity cover plate 2 is stacked above the cavity plate 1 to close the groove 11 during mold closing, and the lower end of the upper core 3 abuts against the upper end of the lower core 4 in the groove 11 to form an inner hole of the fluorine rubber gasket 10.

In a specific structure, the lower end of the upper core 3 is coaxial with the upper end of the lower core 4. The mould is provided with a plurality of cavities, each of which is provided with an upper core 3 and a lower core 4, respectively.

In this embodiment, the lower end of the upper core 3 is provided with a positioning groove 31, the upper end of the lower core 4 is convexly provided with a positioning protrusion 41 matched with the positioning groove 31, and the positioning protrusion 41 is inserted into the positioning groove 31 during mold closing to realize the mutual positioning of the upper core 3 and the lower core 4. Preferably, the positioning protrusion 41 has a circular truncated cone shape or a quadrangular frustum pyramid shape, and the positioning protrusion 41 is integrally formed with the lower core 4, or the positioning protrusion 41 is assembled to the lower core 4 by a conventional fixing means.

The upper core 3 may be integrally formed with the cavity cover plate 2, or may be welded, screwed or fixedly connected to the cavity cover plate 2 by means of other parts.

The lower end of the lower mold core 4 is provided with a spring 5, specifically, the lower mold core 4 is provided with a containing groove, the spring 5 is positioned in the containing groove, and the lower end of the lower mold core 4 extends into the containing groove to be abutted against the spring 5. When the mold is closed, the lower core 4 is pushed by the upper core 3 to compress the spring 5, and when the mold is opened, the spring 5 rebounds and pushes the lower core 4 to move upwards so that the upper end of the lower core 4 protrudes relative to the cavity plate 1.

The use principle of the die is as follows: when the mold is opened, the upper mold core 3 is separated from the lower mold core 4, the upper end of the lower mold core 4 forms an inverted buckle, so that the fluorine rubber sealing ring 10 is kept at the upper end of the lower mold core 4, the lower mold core 4 moves upwards together with the product under the action of the spring 5, the product protrudes relative to the mold cavity plate 1, and then the product is manually taken out, so that the mold is released.

The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.

Claims

1. The utility model provides a fluorine rubber seal ring mould which characterized in that: the upper core is fixedly connected with the cavity cover plate, the lower end of the upper core is in an inverted round table shape, the cavity cover plate is superposed above the cavity plate to seal the groove during die assembly, and the lower end of the upper core is abutted to the upper end of the lower core in the groove to form an inner hole of the fluorine rubber seal ring.

2. The fluoro-rubber gasket mold of claim 1 wherein: the lower end of the upper core is coaxial with the upper end of the lower core.

3. The fluoro-rubber gasket mold of claim 1 wherein: the lower end of the upper mold core is provided with a positioning groove, the upper end of the lower mold core is convexly provided with a positioning bulge matched with the positioning groove, and the positioning bulge is inserted into the positioning groove during mold closing so as to realize mutual positioning of the upper mold core and the lower mold core.

4. The fluoro-rubber gasket mold of claim 3 wherein: the positioning bulge is in a round table shape or a quadrangular frustum pyramid shape.

5. The fluoro-rubber gasket mold of claim 1 wherein: the upper mold core and the cavity cover plate are integrally formed.

6. The fluoro-rubber gasket mold of claim 1 wherein: the lower end of the lower mold core is provided with a spring, when the mold is closed, the lower mold core is pushed by the upper mold core to compress the spring, and when the mold is opened, the spring rebounds and pushes the lower mold core to move upwards so that the upper end of the lower mold core protrudes relative to the cavity plate.