Sealing gasket capable of preventing oil leakage and machining die

Abstract

The utility model relates to the technical field of sealing gasket processing, and provides an oil-leakage-proof sealing gasket and a processing mould, the oil-leakage-proof sealing gasket comprises a mould table, a processing circular groove is arranged on the mould table, a pressing forming assembly is arranged on the mould table, and a driving assembly is arranged on the side wall of the mould table; the press-down forming assembly comprises a press-down pipe, a forming press-down plate is arranged at the bottom of the press-down pipe, a forming ring piece is arranged on the forming press-down plate, and a pressure relief hole is formed in the bottom of a gap between the press-down plate and the forming ring piece; the driving assembly comprises a side position table, the side position table is arranged on the side wall of the mold table, a driving oil cylinder is arranged on the upper end face of the side position table, a downward pressing table is arranged at the output end of the driving oil cylinder, and the downward pressing table is fixedly connected with the downward pressing pipe. By means of the technical scheme, the problems that in the prior art, large equipment for machining mold forming is high in manufacturing cost, and other forming molds are difficult to switch due to the fact that the molds are difficult to replace are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing gasket processing, and in particular to an oil leakage-proof sealing gasket and a processing mould. Background Art

[0002] The rubber sealing gasket is a self-expanding sealing gasket, which belongs to the pipeline sealing component. It is composed of three parts: an outer ring, a middle expansion ring and an inner ring. The outer ring and the inner ring are general elastic sealing rings. There is a bubble structure in the center of the middle expansion ring, and both sides are hollow rings. The outer side of the ring is sealed and the inner side is open. The outer ring and the inner ring are divided into two parts, which are installed on the inner and outer sides of the bubble structure of the middle expansion ring.

[0003] Rubber sealing gaskets are also widely used. There is a layer of rubber gasket on the lid of the beverages we usually drink, which is used for sealing. It is used to isolate the circulation of air from the outside world. The working principles on the machinery are static and dynamic. In short, they are used to isolate from the outside world or a certain place. The working principle of the sealing gasket is also very simple. It can be said that there are not many principles, just isolation.

[0004] Gaskets are widely used in the static sealing of the joint surfaces of pipelines and shells of engineering machinery and diesel engines. They use their elastic deformation to fill the unevenness of the joint surfaces of parts, cut off the leakage channel, increase the leakage resistance, or withstand the pressure difference between the inside and outside to prevent the leakage of flowing media (gas, cooling water, lubricating oil, gear oil, hydraulic oil, brake fluid, etc.). According to the material, there are three categories of gaskets: non-metallic gaskets, non-metallic and metal combined gaskets, and metal gaskets. The commonly used materials are rubber, leather, asbestos, paper, cork, polytetrafluoroethylene, steel, iron, aluminum, copper and stainless steel. Gaskets made of cellulose materials such as cotton, hemp, asbestos, paper, and leather have loose tissues, poor density, and fine gaps between fibers. They are easily penetrated by flowing media. Under pressure, the flowing medium penetrates from the high-pressure side through these fine gaps to the low-pressure side, forming penetration leakage (accounting for about 10%~20% of the total leakage).

[0005] In the process of processing the sealing gasket, it is stamped and formed in one piece by a mold. A large mold forming machine is used in the mold forming process, which is expensive and not suitable for small and medium-sized enterprises. In view of this, an oil leakage-proof sealing gasket and a processing mold are developed. Utility Model Content

[0006] The utility model provides an oil-leakage-proof sealing pad and a processing mold, which solve the problems in the prior art that large-scale equipment for processing mold molding is expensive and it is difficult to switch to other molding molds due to the difficulty in replacing the mold.

[0007] The technical solution of the utility model is as follows:

[0008] A mold table, wherein a processing circular groove is formed on the mold table;

[0009] A press-down forming assembly, the press-down forming assembly being arranged on the die table;

[0010] A driving assembly, wherein the driving assembly is arranged on a side wall of the mold table;

[0011] The down-pressing forming assembly comprises a down-pressing tube, a forming down-pressing plate is arranged at the bottom of the down-pressing tube, a forming ring sheet is arranged on the forming down-pressing plate, and a pressure relief hole is opened at the bottom of the gap between the down-pressing plate and the forming ring sheet;

[0012] The driving assembly comprises a side platform, which is arranged on the side wall of the mold platform. The upper end surface of the side platform is provided with a driving cylinder, and the output end of the driving cylinder is provided with a pressing platform, which is fixedly connected to the pressing tube.

[0013] As a further technical solution, the number of the pressure relief holes is several, and the plurality of pressure relief holes are evenly arranged on the forming lower pressing plate.

[0014] As a further technical solution, a formed clearance groove is provided at the bottom of the inner side wall of the downward pressing tube, and the formed clearance groove is opened on the inner side wall of the downward pressing tube along a circle.

[0015] As a further technical solution, the bottom surface of the forming lower pressing plate is a plane, and the forming lower pressing plate is a circular structure.

[0016] As a further technical solution, the contour of the molded lower pressing plate matches the structure of the processed circular groove, and the molded lower pressing plate is completely embedded in the processed circular groove.

[0017] As a further technical solution, the machining circular groove is a circular ring structure, and the depth of the machining circular groove matches the height of the formed ring piece.

[0018] As a further technical solution, the number of the side platforms is two, and the number of the side platforms is the same as the number of the driving cylinders, and the output ends of the driving cylinders are placed upward.

[0019] As a further technical solution, the diameter of the sealing gasket is the same as the inner diameter of the processed circular groove, and the structure of the sealing gasket matches the contour of the molded lower pressing plate.

[0020] The working principle and beneficial effects of the utility model are:

[0021] The utility model discloses a kind of utility model, and the utility model discloses a kind of utility model, and the utility model is convenient to use, does not need large-scale mold processing equipment, saves cost, is suitable for use by small and medium-sized enterprises, is low in cost and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is an axial view of the forming lower pressing plate of the utility model;

[0025] Figure 3 This is a cross-sectional view of the forming lower pressing plate of the utility model;

[0026] Figure 4 It is an axial side view of the sealing gasket of the utility model;

[0027] In the figure: 1. mold table; 2. processing circular groove; 3. pressing forming assembly; 3-1. pressing tube; 3-2. forming pressing plate; 3-3. forming ring piece; 3-4. pressure relief hole; 4. driving assembly; 4-1. side table; 4-2. driving cylinder; 4-3. pressing table; 5. forming clearance groove; 6. sealing gasket. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1~Figure 4 As shown, this embodiment provides an oil leakage-proof sealing gasket and a processing mold, including

[0030] A mold table 1, on which a processing circular groove 2 is opened;

[0031] A press-down forming assembly 3, the press-down forming assembly 3 is arranged on the mold table 1;

[0032] A driving assembly 4, wherein the driving assembly 4 is arranged on a side wall of the mold table 1;

[0033] The down-pressing forming assembly 3 includes a down-pressing tube 3-1, a forming down-pressing plate 3-2 is arranged at the bottom of the down-pressing tube 3-1, a forming ring sheet 3-3 is arranged on the forming down-pressing plate 3-2, and a pressure relief hole 3-4 is opened at the bottom of the gap between the down-pressing plate and the forming ring sheet 3-3;

[0034] The driving assembly 4 includes a side platform 4-1, which is arranged on the side wall of the mold platform 1. The upper end surface of the side platform 4-1 is provided with a driving cylinder 4-2, and the output end of the driving cylinder 4-2 is provided with a pressing platform, which is fixedly connected to the pressing tube 3-1.

[0035] In this embodiment, after being pressed down, the down-pressing tube 3-1 drives the formed down-pressing plate 3-2 to be pressed down. The formed down-pressing plate 3-2 is squeezed in the processed circular groove 2 to form a sealing gasket, and the pressure is discharged through the pressure relief hole 3-4 during the extrusion process. The down-pressing platform is driven downward by the oil cylinder 4-2. The down-pressing platform and the down-pressing tube 3-1 are screwed together by bolts. When replacing other types of formed down-pressing plates 3-2, the down-pressing tube 3-1 can be screwed and removed, which is convenient to use.

[0036] Specifically, there are a plurality of pressure relief holes 3 - 4 , and a plurality of pressure relief holes 3 - 4 are evenly arranged on the molding lower pressing plate 3 - 2 .

[0037] In this embodiment, the pressure relief holes 3-4 are used to discharge pressure during molding and extrusion, and the multiple pressure relief holes 3-4 are evenly distributed, so that the pressure discharge effect is better.

[0038] Furthermore, a formed clearance groove is provided at the bottom of the inner side wall of the down-pressing tube 3 - 1 , and the formed clearance groove is opened on the inner side wall of the down-pressing tube 3 - 1 along a circle.

[0039] In this embodiment, the molded relief groove has the effect of molding the shape of the inner side wall of the sealing gasket.

[0040] Furthermore, the bottom surface of the forming lower pressing plate 3-2 is a plane, the forming lower pressing plate 3-2 is a circular structure, the contour of the forming lower pressing plate 3-2 matches the structure of the processed circular groove 2, and the forming lower pressing plate 3-2 is completely embedded in the processed circular groove 2.

[0041] Furthermore, the circular groove is processed into a 2-ring structure, the depth of the processed circular groove 2 matches the height of the formed ring piece 3-3, the number of side platforms 4-1 is two, the number of side platforms 4-1 is the same as the number of driving cylinders 4-2, the output end of the driving cylinder 4-2 is placed upward, the diameter of the sealing gasket is the same as the inner diameter of the processed circular groove 2, and the structure of the sealing gasket matches the contour of the formed lower pressure plate 3-2.

[0042] When it is necessary to press down the down-pressure tube 3-1, it drives the forming down-pressure plate 3-2 to press down after being pressed down. The forming down-pressure plate 3-2 is squeezed in the processing circular groove 2 to form a sealing gasket, and the pressure is discharged through the pressure relief hole 3-4 during the extrusion process. The down-pressure platform is driven downward by the oil cylinder 4-2. The down-pressure platform and the down-pressure tube 3-1 are screwed together by bolts. When replacing other types of forming down-pressure plates 3-2, the down-pressure tube 3-1 can be screwed down. The shape of the sealing gasket depends on the shape of the forming down-pressure plate 3-2. Liquid heated by high temperature of the raw material is injected into the processing circular groove 2. After the forming down-pressure plate 3-2 is pressed down, the raw material liquid is molded and formed into a sealing gasket after solidification. Then the excess material at the pressure relief hole 3-4 can be trimmed.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A processing mold, characterized in that: It comprises a mold table (1), wherein the mold table (1) is provided with a processing circular groove (2); A press-down molding component (3), the press-down molding component (3) being arranged on the mold platform (1); a drive component (4), the drive component (4) being arranged on a side wall of the mold platform (1); The down-pressing forming assembly (3) comprises a down-pressing tube (3-1), a forming down-pressing plate (3-2) is arranged at the bottom of the down-pressing tube (3-1), a forming ring sheet (3-3) is arranged on the forming down-pressing plate (3-2), and a pressure relief hole (3-4) is opened at the bottom of the gap between the down-pressing tube (3-1) and the forming ring sheet (3-3); The driving assembly (4) comprises a side platform (4-1), the side platform (4-1) being arranged on the side wall of the mold platform (1), the upper end surface of the side platform (4-1) being provided with a driving cylinder (4-2), the output end of the driving cylinder (4-2) being provided with a pressing platform (4-3), and the pressing platform (4-3) being fixedly connected to the pressing tube (3-1).

2. A processing mold according to claim 1, characterized in that: The pressure relief holes (3-4) are present in a plurality of numbers, and a plurality of the pressure relief holes (3-4) are evenly arranged on the lower forming pressing plate (3-2).

3. A processing mold according to claim 1, characterized in that: A formed clearance groove (5) is provided at the bottom of the inner side wall of the downward pressing tube (3-1), and the formed clearance groove (5) is opened along a circumference on the inner side wall of the downward pressing tube (3-1).

4. A processing mold according to claim 1, characterized in that: The bottom surface of the molding lower pressing plate (3-2) is a plane, and the molding lower pressing plate (3-2) is a circular structure.

5. A processing mold according to claim 1, characterized in that: The contour of the molded lower pressing plate (3-2) matches the structure of the processed circular groove (2), and the molded lower pressing plate (3-2) is completely embedded in the processed circular groove (2).

6. A processing mold according to claim 1, characterized in that: The machining circular groove (2) is a circular ring structure, and the depth of the machining circular groove (2) matches the height of the forming ring piece (3-3).

7. A processing mold according to claim 1, characterized in that: The number of the side platforms (4-1) is two, and the number of the side platforms (4-1) is the same as the number of the driving cylinders (4-2), and the output ends of the driving cylinders (4-2) are arranged upwards.

8. An oil leakage-proof sealing gasket, processed using a processing mold according to any one of claims 1 to 7, characterized in that: The diameter of the sealing gasket (6) is the same as the inner diameter of the processed circular groove (2), and the structure of the sealing gasket (6) matches the profile of the molded lower pressing plate (3-2).

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