CN220331820U

CN220331820U - Rubber sealing piece apparatus for producing convenient to drawing of patterns

Info

Publication number: CN220331820U
Application number: CN202321003775.5U
Authority: CN
Inventors: 昌明昌; 饶文
Original assignee: HUNAN MASTER SEALING CO Ltd
Current assignee: HUNAN MASTER SEALING CO Ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2024-01-12
Anticipated expiration: 2033-04-28

Abstract

The utility model discloses a rubber sealing piece production device convenient for demolding, which relates to the technical field of rubber sealing piece production and comprises an upper die and a lower die, wherein the upper die is arranged on the lower die through a positioning structure, a plurality of round die columns which are arranged in a rectangular array are fixed at the die bottom of the upper die, a plurality of round die grooves which are arranged in a rectangular array are formed in the die top of the lower die, the round die grooves correspond to the round die columns up and down, the inner diameter of each round die groove is smaller than the outer diameter of each round die column, an injection molding pipe is arranged at the center of the die top of the upper die, the injection molding pipe is communicated with each round die groove on the lower die, and a structure for lifting a formed rubber ring is arranged between the column bottom of each round die column and the tank bottom of each round die groove. The utility model can carry out injection molding of a plurality of circular mould grooves at one time by arranging the communicated openings, after the production of the formed rubber ring is finished, the mould is separated, the circular mould column is fixed on the upper mould, and then the upper mould moves upwards to lift the formed rubber ring, thereby being convenient for demoulding, being very convenient, having simple structure and high practicability.

Description

Rubber sealing piece apparatus for producing convenient to drawing of patterns

Technical Field

The utility model relates to the technical field of rubber sealing element production, in particular to a rubber sealing element production device convenient for demolding.

Background

The rubber ring is a very common part in the field of real machinery, and during processing, there are two modes, namely extrusion molding, and injection molding is carried out through an injection mold.

The existing injection mold mainly comprises an upper mold and a lower mold, wherein the upper mold is arranged on the lower mold, a circular mold cavity is formed in the mold top of the lower mold, a circular mold column is fixed at the bottom of the circular mold cavity, the inner diameter of the circular mold cavity is larger than the outer diameter of the circular mold column, an injection molding pipe is arranged in the center of the mold top of the upper mold, and when the injection molding pipe is used, rubber liquid is injected into the circular mold cavity of the lower mold through the injection molding pipe by an external injection molding source and then is cooled and molded.

However, the molded rubber ring is located at the bottom of the circular mold cavity, and is closely attached to the bottom and the wall of the circular mold cavity, respectively, and the wall of the circular mold column, which makes it difficult to mold the molded rubber ring, and therefore, improvement is required.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a rubber sealing piece production device convenient for demolding, which solves the problem that in the prior art, a rubber ring is inconvenient to demold after being molded by a molding die.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a rubber seal apparatus for producing convenient to drawing of patterns, includes mould and lower mould, goes up the mould and installs on the lower mould through location structure, goes up the die bottom of mould and is fixed with a plurality of circular moulding columns that are rectangular array and arrange, has seted up a plurality of circular moulding grooves that are rectangular array and arrange at the mould top of lower mould, and circular moulding groove and circular moulding column correspond from top to bottom, and the internal diameter of circular moulding groove is less than the external diameter of circular moulding column.

The most main difference design of the utility model is that an injection molding pipe is arranged at the center of the top of the upper die, the injection molding pipe is communicated with each circular die groove on the lower die, and a structure for lifting and forming a rubber ring is arranged between the bottom of the circular die column and the bottom of the circular die groove.

The positioning structure specifically comprises four positioning columns fixed at the corners of the top of the lower die, positioning holes are formed in the four corners of the upper die, the positioning columns extend out of the positioning holes, locking pieces are arranged on the positioning columns, the positioning columns are threaded columns, the locking pieces are nuts screwed on the positioning columns, and the lower surfaces of the nuts are abutted against the top of the upper die.

In order to realize the intercommunication of each circular die cavity, the intercommunication opening has been seted up between every row circular die cavity on the lower mould, and the degree of depth of intercommunication opening is less than the groove depth of circular die cavity.

The structure of the lifting formed rubber ring specifically comprises a lifting piece, wherein a clamping groove is formed in the bottom of a circular mold groove and matched with the lower end of the circular mold column, one side of the clamping groove is provided with a notch groove which is matched with the lifting piece, the thickness of the lifting piece is the same as the groove depth of the notch groove, and the formed rubber ring can be lifted during mold separation.

Compared with the prior art, the utility model has the following beneficial effects: the setting of intercommunication opening can once only carry out the injection molding of a plurality of circular mould grooves, and after the production of shaping rubber circle was accomplished, divide the mould, fix the circular mould post on last mould, then upward move of going up the mould lifts shaping rubber circle, and the drawing of patterns of being convenient for is very convenient, simple structure, and the practicality is high.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model (molded rubber ring not shown);

FIG. 2 is a schematic view of the upper die of the present utility model (the molded rubber ring is not shown);

FIG. 3 is a schematic view of a circular mold column according to the present utility model;

FIG. 4 is a schematic view of the lower die of the present utility model (the molded rubber ring is not shown);

FIG. 5 is an enlarged view of the utility model at A in FIG. 4;

FIG. 6 is a cross-sectional view of a front view of the present utility model;

fig. 7 is an enlarged view of fig. 6 at B in accordance with the present utility model.

Reference numerals: 1. an upper die; 2. a lower die; 3. a round mold column; 4. a circular die cavity; 5. injection molding a tube; 6. positioning columns; 7. a locking member; 8. the communicating notch; 9. lifting the sheet; 10. a clamping groove; 11. a notch groove; m, forming a rubber ring.

Detailed Description

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

As shown in fig. 1, the utility model provides a rubber sealing piece production device convenient for demolding, which comprises an upper die 1 and a lower die 2, wherein the upper die 1 is arranged on the lower die 2 through a positioning structure, a plurality of round die posts 3 which are arranged in a rectangular array are fixed at the die bottom of the upper die 1, a plurality of round die grooves 4 which are arranged in a rectangular array are formed in the die top of the lower die 2, the round die grooves 4 correspond to the round die posts 3 up and down, the inner diameter of the round die grooves 4 is smaller than the outer diameter of the round die posts 3, an injection molding pipe 5 is connected with an external injection molding source for injection molding, and then liquid rubber is cooled until a molded rubber ring M is formed.

As shown in fig. 1-2 and fig. 4-5, the most important distinguishing design of the utility model is that an injection molding pipe 5 is arranged at the center of the top of the upper die 1, the injection molding pipe 5 is communicated with each circular die groove 4 on the lower die 2, and a structure for lifting a molded rubber ring M is arranged between the bottom of the circular die column 3 and the bottom of the circular die groove 4.

As shown in fig. 1-2, fig. 4 and fig. 7, in the utility model, the positioning structure specifically comprises four positioning columns 6 fixed at the corners of the top of the lower die 2, positioning holes are formed at the four corners of the upper die 1, the positioning columns 6 extend out of the positioning holes, locking pieces 7 are arranged on the positioning columns 6, the positioning columns 6 are threaded columns, the locking pieces 7 are nuts screwed on the positioning columns 6, and the lower surface of the nuts is abutted against the top of the upper die 1.

As shown in fig. 4-7, in order to realize the communication of the circular cavities 4, a communication gap 8 is formed between each row of circular cavities 4 on the lower die 2, and the depth of the communication gap 8 is smaller than the depth of the circular cavities 4.

As shown in fig. 2-7, in the utility model, the structure of the lifting molding rubber ring M specifically comprises a lifting piece 9, a clamping groove 10 is formed at the bottom of the circular mold groove 4, the clamping groove 10 is matched with the lower end of the circular mold column 3, a notch groove 11 is formed at one side of the clamping groove 10, the notch groove 11 is matched with the lifting piece 9, the thickness of the lifting piece 9 is the same as the groove depth of the notch groove 11, and the molding rubber ring M can be lifted during mold separation.

When the die is in operation, the upper die 1 is covered on the lower die 2, the positioning column 6 extends out of the positioning hole, then the nut is screwed on the positioning column 6, and the nut is rotated downwards until the lower surface of the nut is abutted against the die top of the upper die 1, so that die assembly is realized;

injecting liquid rubber liquid into the lower die 2 through an injection pipe 5 by an external injection molding source, enabling the rubber liquid to sequentially flow into each circular die cavity 4 through the arrangement of the communicated openings 8, completing injection molding, and then cooling and molding the rubber liquid to obtain a molded rubber ring M;

then the nut is detached from the positioning column 6, the upper die 1 is pulled upwards, the round die column 3 is pulled out of the clamping groove 10 while the upper die 1 is pulled, the lifting piece 9 is pulled out of the notch groove 11, the formed rubber ring M is driven to be lifted from the round die groove 4, the formed rubber ring M is separated from the round die groove 4, demoulding is completed, demoulding of the formed rubber ring M is completed during die separation, convenience is achieved, and then the formed rubber ring M is taken down from the lifting piece 9.

Finally, the most significant contribution of the present utility model over the prior art is: the setting of intercommunication opening 8 can once only carry out the injection molding of a plurality of circular moulding grooves 4, and shaping rubber circle M production is accomplished the back, divides the mould, fixes circular moulding post 3 on last mould 1, then goes up mould 1 and shifts up shaping rubber circle M, and the drawing of patterns of being convenient for is very convenient, simple structure, and the practicality is high.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Rubber sealing member apparatus for producing convenient to drawing of patterns, including last mould and lower mould, its characterized in that: the upper die is arranged on the lower die through a positioning structure, a plurality of circular die columns which are arranged in a rectangular array are fixed at the die bottom of the upper die, a plurality of circular die grooves which are arranged in a rectangular array are formed in the die top of the lower die, the circular die grooves correspond to the circular die columns vertically, and the inner diameter of the circular die grooves is smaller than the outer diameter of the circular die columns;

an injection molding pipe is arranged at the center of the top of the upper die and is communicated with each circular die groove on the lower die, and a structure for lifting a molded rubber ring is arranged between the bottom of the circular die column and the bottom of the circular die groove.

2. The rubber seal production apparatus for facilitating demolding as claimed in claim 1, wherein: the positioning structure comprises four positioning columns fixed at the top corners of the lower die, positioning holes are formed in the four corners of the upper die, the positioning columns extend out of the positioning holes, and locking pieces are arranged on the positioning columns.

3. A rubber seal production apparatus for facilitating demolding as claimed in claim 2, wherein: the locating column is a threaded column, the locking piece is a nut screwed on the locating column, and the lower surface of the nut abuts against the top of the upper die.

4. A rubber seal production apparatus for facilitating demolding as claimed in claim 3, wherein: and a communicating opening is formed between each row of circular die grooves on the lower die, and the depth of the communicating opening is smaller than the groove depth of the circular die grooves.

5. The apparatus for producing a rubber seal for facilitating mold release according to claim 4, wherein: the structure of the lifting forming rubber ring comprises a lifting piece, a clamping groove is formed in the bottom of the circular mold groove and matched with the lower end of the circular mold column, a notch groove is formed in one side of the clamping groove and matched with the lifting piece, and the thickness of the lifting piece is identical to the groove depth of the notch groove.