CN117901326A - Cloth-sandwiched rubber oil seal lamination process with double-layer edge lamination - Google Patents
Cloth-sandwiched rubber oil seal lamination process with double-layer edge lamination Download PDFInfo
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- CN117901326A CN117901326A CN202410098094.4A CN202410098094A CN117901326A CN 117901326 A CN117901326 A CN 117901326A CN 202410098094 A CN202410098094 A CN 202410098094A CN 117901326 A CN117901326 A CN 117901326A
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- rubber layer
- cloth
- mold
- pressing
- prefabricated
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- 239000005060 rubber Substances 0.000 title claims abstract description 124
- 238000003475 lamination Methods 0.000 title claims abstract description 6
- 238000000034 method Methods 0.000 title claims description 17
- 238000003825 pressing Methods 0.000 claims abstract description 46
- 239000004744 fabric Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 5
- 102000008186 Collagen Human genes 0.000 claims description 3
- 108010035532 Collagen Proteins 0.000 claims description 3
- 229920001436 collagen Polymers 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000013040 rubber vulcanization Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 abstract description 7
- 238000004512 die casting Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 10
- 239000007769 metal material Substances 0.000 description 4
- 239000000805 composite resin Substances 0.000 description 3
- 239000012634 fragment Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model provides a double-deck border laminating formula press from both sides cloth rubber oil blanket laminating technology, prefabricated mould and pressing die are all established inside the press with the vulcanizer, press from both sides cloth rubber layer and be the annular layer of smooth circle, press from both sides the inboard of cloth rubber layer and be equipped with pure rubber layer, press from both sides the bottom surface of cloth rubber layer and the bottom surface parallel and level of pure rubber layer, pure rubber layer is the horn mouth ring of slant, the outer base that expands of pure rubber layer and press from both sides cloth rubber layer bottom surface parallel and level, the die casting shaping is carried out prefabricated in advance with pressing from both sides cloth rubber and pure rubber to the die that the combination formula mould can be convenient, can be convenient and fast carry out one shot forming die casting with pressing from both sides cloth rubber layer according to required size demand through prefabricated mould, and pressing die can be convenient and fast when making pure rubber lamination into required shape, can also let simultaneously press from both sides cloth rubber layer and pure rubber layer and vulcanize the combination, make the connection of two high strength be a whole, improve the intensity of bonding.
Description
Technical Field
The invention belongs to the technical field of cloth-clamping rubber oil seal technology, and particularly relates to a cloth-clamping rubber oil seal laminating technology with double-layer edge laminating.
Background
The plugging cover products are mostly made of resin matrix composite materials, metal materials, rubber materials and the like, and play a role in sealing, bearing or both according to different use conditions. Resin-based composite materials and metal materials are generally used in environments with low sealing requirements and certain strength requirements, but fragments can be generated when the resin-based composite materials and the metal materials are damaged in the use process, and the fragments serve as an excessive substance to endanger surrounding instruments and other equipment. The rubber material has low strength, good sealing property, is generally used as a sealing material, cannot meet the requirement on the use environment with certain strength requirement, and only partial opening damage of the product is avoided when the rubber material is damaged, so that the safety of surrounding equipment is ensured.
The resin-based composite material and the metal material are used for making the blanking cover, so that the problems of poor sealing performance and low safety of surrounding equipment once damaged exist, rubber is used for making the blanking cover, and the problem of poor strength exists.
However, the existing double-layer oil seal of cloth clamping rubber is of a tightly attached double-layer structure, and can only be adapted to sealing external members with various smooth surfaces, if a special-shaped multi-step structure is arranged in the sealing external member, the stress step between the connecting parts of the sealing member has the connection requirement of strength and the elastic requirement of sealing, so that the pure rubber layer on the inner side of the oil seal is attached to the cloth clamping rubber along the independent edge, and the pure rubber layer and the cloth clamping rubber layer inside and outside the required double-layer oil seal are molded into the required shape in advance through a mold, and are just assembled and spliced at the joint through vulcanization combination.
However, gaps are formed between the pure rubber layer and the cloth-sandwiched rubber layer in the production form, the connection strength of the pure rubber layer and the cloth-sandwiched rubber layer is not high in laminating strength, and the pure rubber layer and the cloth-sandwiched rubber layer are extremely easy to damage in a long-time use process.
Disclosure of Invention
In order to solve the problems, the present disclosure provides a process for attaching a double-layer edge-attached cloth-sandwiched rubber oil seal, wherein a cloth-sandwiched rubber layer is arranged on the outer side of the cloth-sandwiched rubber oil seal, a pure rubber layer is arranged on the inner side of the cloth-sandwiched rubber oil seal, and the specific steps of the process for attaching the cloth-sandwiched rubber oil seal are as follows;
a. cutting and rolling the cloth-clamping rubber raw material into a size matched with the inner cavity of the prefabricated mold;
b. Filling prefabricated cloth-sandwiched rubber raw materials into cavities among a prefabricated core mold, a prefabricated middle mold and a prefabricated bottom mold of a prefabricated mold;
c. closing the pre-molding, pressing the cloth-sandwiched rubber raw material to a required size according to conventional operation without heating by a vulcanizing machine;
d. the operation is carried out in the reverse operation sequence, and the preformed cloth-sandwiched rubber layer is taken out after the mold is removed;
e. Sequentially placing the preformed cloth-sandwiched rubber layer and the pure collagen material into a cavity formed among a pressing core die, a pressing middle die and a pressing bottom die of a pressing die;
f. closing and pressing an upper die, and heating the die for pressing, maintaining pressure and vulcanizing by a vulcanizing machine according to the set temperature of the rubber vulcanization requirement;
g. the operation is carried out in the reverse operation sequence, and the pressed oil seal is taken out after the demolding;
h. the cloth clamping rubber layer on the outer side of the oil seal is fixed to a lathe through a special fixture, and the inner diameter size is subjected to finishing turning through the lathe tool.
The prefabricated mould and the pressing mould are all arranged inside the press with the vulcanizing machine, the prefabricated mould and the pressing mould are combined moulds, the prefabricated mould and the pressing mould are both provided with a bottom mould, a middle mould, a core mould and a top mould, the bottom mould is a planar bottom mould, the middle mould and the core mould are ring-type positioning moulds, the top mould is connected with the press, the prefabricated cloth clamping rubber and the pure rubber can be conveniently and in advance subjected to die casting molding through the combined moulds, the cloth clamping rubber layer can be conveniently and rapidly subjected to one-step molding die casting according to the required size requirement through the prefabricated mould, and the pressing mould can simultaneously enable the cloth clamping rubber layer and the pure rubber layer to be vulcanized and combined when being laminated into the required shape, so that the cloth clamping rubber layer and the pure rubber layer are connected into a whole with high strength, and the combined strength is improved.
The cloth clamping rubber layer is a smooth circular annular layer, the pure rubber layer is arranged on the inner side of the cloth clamping rubber layer, the bottom surface of the cloth clamping rubber layer is flush with the bottom surface of the pure rubber layer, and the cloth clamping rubber layer can ensure that the excessive torque of the sealing element in the combination process causes excessive torque to support and strengthen, so that the oil seal can be effectively protected.
The pure rubber layer is the horn mouth ring of slant, and the outer base that expands of pure rubber layer is parallel and level with the cloth rubber layer bottom surface that presss from both sides, and the base outside of pure rubber layer links to each other with the inboard vulcanization pressfitting of cloth rubber layer, carries out efficient protection seal through the pure rubber layer of special shape, guarantees the laminating seal to can also be used for assisting the support of pure rubber layer through the connection with cloth rubber layer.
The beneficial effects are that:
The combined die can conveniently and in advance perform die casting molding on the prefabricated cloth clamping rubber and the pure rubber, the prefabricated die can conveniently and rapidly perform one-time molding die casting on the cloth clamping rubber layer according to the required size requirement, the pressing die can conveniently and rapidly laminate the pure rubber into the required shape, and meanwhile, the cloth clamping rubber layer and the pure rubber layer can be vulcanized and combined, so that the cloth clamping rubber layer and the pure rubber layer are connected into a whole with high strength, and the bonding strength is improved.
The cloth clamping rubber layer can ensure that the excessive torque of the sealing element is caused to support and strengthen the excessive torque in the combination process, so that the oil seal can be effectively protected.
Carry out efficient protection seal through special shape's pure rubber layer, guarantee laminating seal to can also be used for assisting the support of pure rubber layer through the connection with pressing from both sides cloth rubber layer.
Drawings
FIG. 1 is a schematic view of a cross-section of an oil seal for a double-layer edge-bonded cloth-sandwiched rubber oil seal bonding process;
FIG. 2 is a cross-sectional view of a prefabricated mold of a cloth clamping rubber layer of a double-layer edge-bonding type cloth clamping rubber oil seal bonding process;
FIG. 3 is a cross-sectional view of a vulcanization press mold of a double-layer edge-bonded cloth-sandwiched rubber oil seal bonding process;
In the figure; 1. the fabric clamping rubber layer 2, the pure rubber layer 3, the prefabricated bottom die 4, the prefabricated middle die 5, the prefabricated core die 6, the prefabricated upper die 7, the pressing bottom die 8, the pressing middle die 9, the pressing core die 10 and the pressing upper die.
Detailed Description
In order to enhance the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and drawings, which are provided for the purpose of illustrating the present invention only and are not to be construed as limiting the scope of the present invention.
The fabric sandwich rubber layer 1, the pure rubber layer 2, the prefabricated bottom die 3, the prefabricated middle die 4, the prefabricated core die 5, the prefabricated upper die 6, the pressing bottom die 7, the pressing middle die 8, the pressing core die 9 and the pressing upper die 10.
As shown in fig. 1, 2 and 3;
The prefabricated mould and the pressing mould are both arranged inside a press with a vulcanizing machine, the cloth clamping rubber layer 1 is a smooth circular layer, the pure rubber layer 2 is arranged on the inner side of the cloth clamping rubber layer 1, the bottom surface of the cloth clamping rubber layer 1 is flush with the bottom surface of the pure rubber layer 2, the pure rubber layer 2 is a horn mouth circular ring in an inclined mode, the outer expanded bottom edge of the pure rubber layer 2 is flush with the bottom surface of the cloth clamping rubber layer 1, the outer side of the bottom edge of the pure rubber layer 2 is connected with the inner side vulcanization pressing of the cloth clamping rubber layer 1, the prefabricated mould and the pressing mould are combined moulds, the prefabricated mould and the pressing mould are both provided with a bottom mould, a middle mould, a core mould and a top mould, the bottom mould is a planar bottom mould, the middle mould and the core mould are annular positioning moulds, and the top mould are connected with the press.
Implementation examples;
a. cutting and rolling the cloth-clamping rubber raw material into a size matched with the inner cavity of the prefabricated mold;
b. The prefabricated cloth-sandwiched rubber raw material is stuffed into the cavity among the prefabricated core mould 5, the prefabricated middle mould 4 and the prefabricated bottom mould 3 of the prefabricated mould;
c. closing the pre-forming upper die 6, pressing the cloth-sandwiched rubber raw material to a required size according to conventional operation without heating by a vulcanizing machine;
d. The operation is carried out in the reverse operation sequence, and the preformed cloth-sandwiched rubber layer 1 is taken out after the mold is removed;
e. sequentially placing the preformed cloth-sandwiched rubber layer 1 and pure collagen materials into a cavity formed among a pressing core mold 9, a pressing middle mold 8 and a pressing bottom mold 7 of a pressing mold;
f. closing and pressing the upper die 10, heating the die for pressing, maintaining pressure and vulcanizing by a vulcanizing machine according to the set temperature of the rubber vulcanization requirement;
g. the operation is carried out in the reverse operation sequence, and the pressed oil seal is taken out after the demolding;
h. The cloth clamping rubber layer 1 outside the oil seal is fixed on a lathe through a special fixture, and the inner diameter size is subjected to finishing turning through the lathe tool.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. The double-layer edge-attached cloth-clamping rubber oil seal attaching process is characterized in that the attaching process comprises the following specific steps of;
a. cutting and rolling the cloth-clamping rubber raw material into a size matched with the inner cavity of the prefabricated mold;
b. Filling prefabricated cloth-sandwiched rubber raw materials into cavities among a prefabricated core mold, a prefabricated middle mold and a prefabricated bottom mold of a prefabricated mold;
c. closing the pre-molding, pressing the cloth-sandwiched rubber raw material to a required size according to conventional operation without heating by a vulcanizing machine;
d. the operation is carried out in the reverse operation sequence, and the preformed cloth-sandwiched rubber layer is taken out after the mold is removed;
e. Sequentially placing the preformed cloth-sandwiched rubber layer and the pure collagen material into a cavity formed among a pressing core die, a pressing middle die and a pressing bottom die of a pressing die;
f. closing and pressing an upper die, and heating the die for pressing, maintaining pressure and vulcanizing by a vulcanizing machine according to the set temperature of the rubber vulcanization requirement;
g. the operation is carried out in the reverse operation sequence, and the pressed oil seal is taken out after the demolding;
h. the cloth clamping rubber layer on the outer side of the oil seal is fixed to a lathe through a special fixture, and the inner diameter size is subjected to finishing turning through the lathe tool.
2. The process for attaching the double-layer edge-attached cloth-sandwiched rubber oil seal according to claim 1, wherein the prefabricated mold and the pressing mold are both arranged in a press with a vulcanizing machine.
3. The process for attaching the double-layer edge-attached cloth-sandwiched rubber oil seal according to claim 1, wherein the cloth-sandwiched rubber layer is a smooth circular annular layer, a pure rubber layer is arranged on the inner side of the cloth-sandwiched rubber layer, and the bottom surface of the cloth-sandwiched rubber layer is level with the bottom surface of the pure rubber layer.
4. The process for attaching the double-layer edge-attached cloth-sandwiched rubber oil seal according to claim 1, wherein the pure rubber layer is an inclined horn-shaped circular ring, the outer expanded bottom edge of the pure rubber layer is level with the bottom surface of the cloth-sandwiched rubber layer, and the outer side of the bottom edge of the pure rubber layer is connected with the inner side of the cloth-sandwiched rubber layer through vulcanization lamination.
5. The process for attaching the double-layer edge-attached cloth-sandwiched rubber oil seal is characterized in that the prefabricated mold and the pressing mold are combined molds, the prefabricated mold and the pressing mold are respectively provided with a bottom mold, a middle mold, a core mold and a top mold, the bottom mold is a planar bottom mold, the middle mold and the core mold are ring-type positioning molds, and the top mold is connected with a press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410098094.4A CN117901326A (en) | 2024-01-24 | 2024-01-24 | Cloth-sandwiched rubber oil seal lamination process with double-layer edge lamination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410098094.4A CN117901326A (en) | 2024-01-24 | 2024-01-24 | Cloth-sandwiched rubber oil seal lamination process with double-layer edge lamination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117901326A true CN117901326A (en) | 2024-04-19 |
Family
ID=90683694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410098094.4A Pending CN117901326A (en) | 2024-01-24 | 2024-01-24 | Cloth-sandwiched rubber oil seal lamination process with double-layer edge lamination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117901326A (en) |
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2024
- 2024-01-24 CN CN202410098094.4A patent/CN117901326A/en active Pending
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