CN113442341A - Preparation mold of socket type pipeline sealing ring and use method thereof - Google Patents
Preparation mold of socket type pipeline sealing ring and use method thereof Download PDFInfo
- Publication number
- CN113442341A CN113442341A CN202110683661.9A CN202110683661A CN113442341A CN 113442341 A CN113442341 A CN 113442341A CN 202110683661 A CN202110683661 A CN 202110683661A CN 113442341 A CN113442341 A CN 113442341A
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- ring
- die
- mold
- upper die
- lower die
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- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000002390 adhesive tape Substances 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 18
- 238000004073 vulcanization Methods 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 229920001875 Ebonite Polymers 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a preparation mould of a socket type pipeline sealing ring, which comprises the following steps: go up the mould, have last mould ring chamber, by in proper order: the first outer ring concave surface of the upper die, the second inner ring concave surface of the upper die, the third inner ring conical surface of the upper die, the fourth inner ring conical surface of the upper die and the fifth inner ring surface of the upper die are connected and surrounded; the lower mould is provided with a lower mould ring cavity and sequentially comprises: the first outer ring surface of the lower die, the second outer conical surface of the lower die, the third ring bottom surface of the lower die and the fourth inner ring surface of the lower die are connected and surrounded; wherein, the part where the concave surface of the first outer ring of the upper die is abutted against the first outer ring surface of the lower die is an inner ring parting surface; and the part where the fifth inner ring surface of the upper die is abutted to the fourth inner ring surface of the lower die is an outer ring parting surface. Meanwhile, the invention also discloses a use method of the preparation mold. The invention aims to prepare a high-performance special sealing ring to meet the installation and use requirements of socket pipelines with specific structures.
Description
Technical Field
The invention relates to the technical field of auxiliary pipeline installation, in particular to a manufacturing die of a socket type pipeline sealing ring and a using method thereof.
Background
Socket pipe means that in order to connect pipes/pieces or branched pipes, both ends of the pipes are respectively made into a socket and a spigot, the spigot of one pipe is inserted into the socket of the other pipe, and then the joint is sealed. The socket joint is mainly used for cast iron pipes, concrete pipes, ceramic pipes, plastic pipes, steel pipes and the like with socket joints, and has two types of rigid socket joint and flexible socket joint. The rigid socket connection is that the spigot of the pipeline is inserted into the bell mouth of the pipeline, after contraposition, caulking is carried out by caulking materials, and then sealing is carried out by sealing materials, so that a firm closed whole is formed. The flexible socket joint is characterized in that an elastic rubber ring is placed on a sealing end of a pipeline socket, and then the inserting end of a pipe is inserted by applying force to form a closed pipe capable of adapting to displacement, vibration and deflection within a certain range.
At present, the main technical indexes considered for the socket pipe connecting structure are that firstly, the sealing structure at the connecting part is reasonable, and the two connecting ends of the pipe are required to have good sealing performance after bearing relative sliding and deflection in a certain range; secondly, the connection part is required to be installed relatively smoothly without damaging the structure of the corresponding part of the sealing part. However, the sealing structure of the socket pipe fitting connection in the prior art is not reasonable, and has a larger improvement space. The present application is directed to a matched mold design for the preparation of improved seal rings.
Disclosure of Invention
In view of this, the present invention provides a manufacturing mold for a socket pipe sealing ring and a method for using the same, so as to manufacture a high-performance special sealing ring, so as to meet the installation and use requirements of a socket pipe with a specific structure.
In order to achieve the above object, in a first aspect, the present invention provides a mold for preparing a socket pipe sealing ring, including:
go up the mould, have the last mould ring chamber of taking the open-ended, go up the mould ring chamber by in proper order: the first outer ring concave surface of the upper die, the second inner ring concave surface of the upper die, the third inner ring conical surface of the upper die, the fourth inner ring conical surface of the upper die and the fifth inner ring surface of the upper die are connected and surrounded; the first outer ring concave surface of the upper die and the third inner ring conical surface of the upper die are arranged in a gradually-reduced manner, and the second inner ring concave surface of the upper die and the fourth inner ring conical surface of the upper die are arranged in a gradually-expanded manner in the axial direction from the upper die to the lower die;
the lower mould has a lower mould ring cavity with an opening, and the lower mould ring cavity sequentially comprises: the first outer ring surface of the lower die, the second outer conical surface of the lower die, the third ring bottom surface of the lower die and the fourth inner ring surface of the lower die are connected and surrounded; in the axial direction from the upper die to the lower die, the first outer ring surface of the lower die is arranged in a gradually-tapered shape, and the second outer conical surface of the lower die is arranged in a gradually-expanded shape;
wherein the upper die ring cavity and the lower die ring cavity are enclosed to form a die cavity for preparing the sealing ring; the part where the concave surface of the first outer ring of the upper die abuts against the first outer ring surface of the lower die is an inner ring parting surface; and the part where the fifth inner ring surface of the upper die is abutted against the fourth inner ring surface of the lower die is an outer ring parting surface.
In some embodiments, the inner ring parting surface and the outer ring parting surface are both provided with exhaust ring grooves.
In some embodiments, the exhaust ring groove comprises: coaxial first exhaust ring groove, second exhaust ring groove, first exhaust ring groove is close to the die cavity side and sets up, the second exhaust ring groove sets up far away from the die cavity side, and still is equipped with on the die joint of last mould and lower mould with the communicating exhaust runner of second exhaust ring groove.
In some embodiments, the fourth inner annular tapered surface of the upper die is provided with an annular convex strip facing the die cavity.
In some embodiments, the upper die is coaxially provided with an upper die conical hole and an upper die conical surface, and correspondingly, the lower die is provided with a lower die conical surface matched with the upper die conical hole and a lower die conical hole matched with the upper die conical surface; the conical surfaces of the upper die and the lower die are arranged in a gradually expanding manner along the axial direction from the upper die to the lower die.
In some embodiments, further comprising: the inner hole edge of the annular separation blade is abutted to the joint of the first outer annular surface of the lower die and the second outer conical surface of the lower die, and the outer circular edge of the annular separation blade is abutted to the third inner conical surface of the upper die.
In some embodiments, the annular baffle plate is formed by at least two arc baffle plates in an enclosing and assembling mode.
In a second aspect, the present invention also provides a use method of the above preparation mold, including the following steps:
s1, filling adhesive tape: weighing and cutting the hard adhesive tape and the soft adhesive tape according to the process requirements, firstly putting the hard adhesive tape into a cavity at a corresponding position of a die and tightly adhering to the inner wall, and lapping and leveling joints; then placing the soft rubber strip into a cavity at the corresponding position of the mold and tightly attaching the soft rubber strip to the inner wall, overlapping and leveling the joint, and finally closing the mold and vulcanizing;
s2, mold closing and vulcanizing: and (4) vulcanizing, opening the mold after vulcanization, and taking out the sealing ring.
In some embodiments, in step S1, an annular separation plate is installed at the contact interface between the hard adhesive tape and the soft adhesive tape for separation.
In some embodiments, in step S2, before the pre-vulcanization stage, the mold is opened to take out the annular separation plate, and then the mold is closed for the subsequent vulcanization.
Compared with the prior art, the invention has the beneficial effects that: the preparation mould of the socket type pipeline sealing ring and the use method thereof are used for preparing the high-performance special sealing ring so as to meet the installation and use requirements of the socket pipeline with a specific structure.
In addition, regular soft and hard rubber part interfaces are obtained through the specific separating and blocking pieces, and the specific use performance requirements are met; and the parting surface on the die is reasonable in position design, the overall quality and integrity of the product can be guaranteed, and the die is convenient to remove.
Drawings
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
FIG. 1 is a schematic structural view of a seal ring according to the present invention;
FIG. 2 is a schematic main sectional view of a mold according to an embodiment of the present invention;
FIG. 3 is a schematic view of a main cross-sectional structure of an annular separation blade according to an embodiment of the present invention;
FIG. 4 is a schematic top view of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the main section of the mold of FIG. 2 after clamping;
fig. 6 is a real object shooting image of the sealing ring prepared by the mold of the invention.
In the figure: 1. an upper die; 100. an upper die ring cavity; 101. an inner ring parting surface; 11. a first outer ring concave surface of the upper die; 12. a second inner ring concave surface of the upper die; 13. a third inner annular conical surface of the upper die; 14. a fourth inner ring conical surface of the upper die; 15. a fifth inner annular surface of the upper die; 2. a lower die; 200. a lower die ring cavity; 201. an outer ring parting surface; 21. a first outer annular surface of the lower die; 22. a second external conical surface of the lower die; 23. the bottom surface of the third ring of the lower die; 24. a fourth inner ring surface of the lower die; 3. an exhaust ring groove; 31. a first exhaust ring groove; 32. a second exhaust ring groove; 33. an exhaust flow passage; 41. an upper die conical hole; 42. an upper die conical surface; 51. a conical surface of the lower die; 52. a conical hole of the lower die; 6. an annular separation blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the cross section of the sealing ring for socket pipes to be vulcanized is formed by combining a hard rubber part i and a soft rubber part ii, and the purpose is to support and seal two connecting ends of the socket pipe by using rubber parts with different hardness, so that the two connecting ends can still have good sealing performance after being subjected to relative sliding in a certain range; and the installation is simpler and smoother. The following is a mold used for producing the seal ring by vulcanization.
Referring to fig. 2 to 6, an embodiment of the present invention provides a mold for manufacturing a socket pipe sealing ring, including:
go up mould 1, have the last mould ring chamber 100 that has the open-ended, go up mould ring chamber 100 by in proper order: the upper die is formed by joining and enclosing an upper die first outer ring concave surface 11, an upper die second inner ring concave surface 12, an upper die third inner ring conical surface 13, an upper die fourth inner ring conical surface 14 and an upper die fifth inner ring surface 15, and the joints are in smooth transition; in the axial direction from the upper die 1 to the lower die 2, a first outer ring concave surface 11 of the upper die and a third inner ring conical surface 13 of the upper die are arranged in a gradually reducing manner, a second inner ring concave surface 12 of the upper die and a fourth inner ring conical surface 14 of the upper die are arranged in a gradually expanding manner, and the inner diameters of fifth inner ring surfaces 15 of the upper die are consistent;
wherein, the upper mold ring cavity 100 and the lower mold ring cavity 200 enclose to form a mold cavity for preparing the seal ring; an inner ring parting surface 101 is arranged at the position where the concave surface 11 of the upper die first outer ring is abutted to the first outer ring surface 21 of the lower die; and an outer ring parting surface 201 is formed at the position where the fifth inner ring surface 15 of the upper die abuts against the fourth inner ring surface 24 of the lower die. The lower part of the die cavity is used for filling hard rubber, the upper part of the die cavity is used for filling soft rubber, one side of a boundary line of the die cavity is positioned at the junction point of a first outer annular surface 21 of the lower die and a second outer conical surface 22 of the lower die, and the other side of the boundary line is positioned in the range of a third inner annular conical surface 13 of the upper die; parting surfaces on the die are reasonable in design, and the sealing ring can be conveniently separated after vulcanization.
In order to facilitate exhaust of the sealing ring during the vulcanization process, in the embodiment of the present invention, optionally, exhaust ring grooves 3 are formed on both the inner ring parting surface 101 and the outer ring parting surface 201. The exhaust ring groove 3 and the annular transverse cavity are coaxially arranged, and gas generated in the die cavity during vulcanization enters the exhaust ring groove 3 through a gap on a parting surface and is discharged.
Further, the exhaust ring groove 3 includes: coaxial first exhaust ring groove 31, second exhaust ring groove 32, first exhaust ring groove 31 is close to the die cavity side and sets up, die cavity side setting is kept away from to second exhaust ring groove 32, and still is equipped with the communicating exhaust runner 33 with second exhaust ring groove 32 on the die joint of last mould 1 and lower mould 2. The exhaust runner 33 is opened along the radial direction of the mold cavity, and the end far away from the end communicated with the second exhaust ring groove 32 extends to the outside of the mold cavity. The first exhaust ring groove 31 is mainly convenient for collecting residual glue during vulcanization and is not easy to block glue, and the second exhaust ring groove 32 is beneficial to the gas in the first exhaust ring groove 31 to be discharged from the exhaust flow passage 33 after being collected.
In order to form the anti-slip grooves required by the hard rubber part, in the embodiment of the present invention, optionally, the fourth inner annular tapered surface 14 of the upper mold is provided with annular convex strips facing the mold cavity. And two may be provided.
In order to ensure the accurate mold closing operation of the upper mold and the lower mold, in the embodiment of the present invention, optionally, an upper mold conical hole 41 and an upper mold conical surface 42 are coaxially arranged on the upper mold 1, and correspondingly, a lower mold conical surface 51 matched with the upper mold conical hole 41 and a lower mold conical hole 52 matched with the upper mold conical surface 42 are arranged on the lower mold 2; in the axial direction along the upper die 1 to the lower die 2, the upper die conical hole 41 and the lower die conical surface 51 are provided in a gradually expanding shape, and the upper die conical surface 42 and the lower die conical hole 52 are provided in a gradually expanding shape. When the die is closed, the upper die conical hole 41 is matched with the lower die conical surface 51 in a positioning mode, and the upper die conical surface 42 is matched with the lower die conical hole 52 in a positioning mode, so that the die closing accuracy is guaranteed.
In order to obtain a regular interface between soft and hard glues, in an embodiment of the present invention, optionally, the method further includes: and the inner hole edge of the annular separation blocking piece 6 abuts against the joint of the first outer annular surface 21 of the lower die and the second outer conical surface 22 of the lower die, and the outer circular edge of the annular separation blocking piece 6 abuts against the third inner conical surface 13 of the upper die. Interfacial flow setting is used at the beginning of vulcanization, i.e., the vulcanization induction period.
Furthermore, the annular separation baffle 6 is formed by at least two arc-shaped separation baffles in an enclosing and assembling mode. Is convenient for disassembly and assembly.
In a second aspect, the present invention also provides a use method of the above preparation mold, including the following steps:
s1, filling adhesive tape: weighing and cutting the hard adhesive tape and the soft adhesive tape according to the process requirements, firstly putting the hard adhesive tape into a cavity at a corresponding position of a die and tightly adhering to the inner wall, and lapping and leveling joints; then placing the soft rubber strip into a cavity at the corresponding position of the mold and tightly attaching the soft rubber strip to the inner wall, overlapping and leveling the joint, and finally closing the mold and vulcanizing;
s2, mold closing and vulcanizing: and (4) vulcanizing, opening the mold after vulcanization, and taking out the sealing ring. The product is soft and uniform in force when taken out of the die and cannot be torn out suddenly with large force.
In an embodiment of the present invention, optionally, in step S1, an annular separation plate is installed on a contact interface between the hard adhesive tape and the soft adhesive tape for separation.
In an embodiment of the present invention, optionally, in step S2, before the pre-vulcanization stage, that is, when the pre-vulcanization stage is approached, the mold is opened to take out the annular blocking sheet, and the mold is closed to perform the subsequent vulcanization.
The mould and the use method thereof can prepare the special sealing ring with high performance so as to meet the installation and use requirements of the socket pipeline with a specific structure.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Claims (10)
1. The utility model provides a preparation mould of socket joint formula pipeline sealing washer which characterized in that includes:
go up mould (1), have mould ring chamber (100) on the area open-ended, go up mould ring chamber (100) by in proper order: the first outer ring concave surface (11) of the upper die, the second inner ring concave surface (12) of the upper die, the third inner ring conical surface (13) of the upper die, the fourth inner ring conical surface (14) of the upper die and the fifth inner ring surface (15) of the upper die are connected and surrounded; in the axial direction from the upper die (1) to the lower die (2), a first outer ring concave surface (11) of the upper die and a third inner ring conical surface (13) of the upper die are arranged in a gradually-reduced shape, and a second inner ring concave surface (12) of the upper die and a fourth inner ring conical surface (14) of the upper die are arranged in a gradually-expanded shape;
a lower die (2) having a lower die ring cavity (200) with an opening, the lower die ring cavity (200) consisting of, in order: the first outer ring surface (21) of the lower die, the second outer conical surface (22) of the lower die, the third ring bottom surface (23) of the lower die and the fourth inner ring surface (24) of the lower die are connected and surrounded; wherein, in the axial direction from the upper die (1) to the lower die (2), the first outer annular surface (21) of the lower die is arranged in a gradually-tapered shape, and the second outer conical surface (22) of the lower die is arranged in a gradually-expanded shape;
wherein the upper die ring cavity (100) and the lower die ring cavity (200) are enclosed to form a die cavity for preparing the sealing ring; an inner ring parting surface (101) is arranged at the position where the concave surface (11) of the first outer ring of the upper die abuts against the first outer ring surface (21) of the lower die; and the part where the fifth inner ring surface (15) of the upper die abuts against the fourth inner ring surface (24) of the lower die is an outer ring parting surface (201).
2. The preparation mold according to claim 1, characterized in that the inner ring parting surface (101) and the outer ring parting surface (201) are provided with exhaust ring grooves (3).
3. The production mold according to claim 2, characterized in that the exhaust ring groove (3) includes: coaxial first exhaust annular (31), second exhaust annular (32), first exhaust annular (31) are close to the die cavity side and set up, die cavity side setting is kept away from in second exhaust annular (32), and still be equipped with on the die joint of last mould (1) and lower mould (2) with the communicating exhaust runner (33) of second exhaust annular (32).
4. The preparation mold according to any claim 1 to 3, characterized in that the upper mold fourth inner annular tapered surface (14) is provided with an annular convex strip facing the mold cavity.
5. The preparation mold according to any one of claims 1 to 3, characterized in that the upper mold (1) is coaxially provided with an upper mold conical hole (41) and an upper mold conical surface (42), and correspondingly, the lower mold (2) is provided with a lower mold conical surface (51) matched with the upper mold conical hole (41) and a lower mold conical hole (52) matched with the upper mold conical surface (42); wherein, in the axial direction from the upper die (1) to the lower die (2), the upper die conical hole (41) and the lower die conical surface (51) are arranged in a gradually expanding shape, and the upper die conical surface (42) and the lower die conical hole (52) are arranged in a gradually expanding shape.
6. The production mold according to any one of claims 1 to 3, further comprising: the inner hole edge of the annular separation blocking piece (6) abuts against the joint of the first outer annular surface (21) of the lower die and the second outer conical surface (22) of the lower die, and the outer circular edge of the annular separation blocking piece (6) abuts against the third inner annular conical surface (13) of the upper die.
7. The preparation mold as claimed in claim 6, wherein the annular baffle plate (6) is formed by at least two arc baffle plates in an enclosing and assembling manner.
8. Use of a method for the preparation of a mould according to any of the claims 1 to 7, characterized in that it comprises the following steps:
s1, filling adhesive tape: weighing and cutting the hard adhesive tape and the soft adhesive tape according to the process requirements, firstly putting the hard adhesive tape into a cavity at a corresponding position of a die and tightly adhering to the inner wall, and lapping and leveling joints; then placing the soft rubber strip into a cavity at the corresponding position of the mold and tightly attaching the soft rubber strip to the inner wall, overlapping and leveling the joint, and finally closing the mold and vulcanizing;
s2, mold closing and vulcanizing: and (4) vulcanizing, opening the mold after vulcanization, and taking out the sealing ring.
9. The use method according to claim 8, wherein in step S1, an annular separation plate is installed at the contact interface between the hard adhesive tape and the soft adhesive tape for separation.
10. The use method according to claim 8, wherein in step S2, before the pre-vulcanization stage, the mold is opened to take out the annular separation blade, and then the mold is closed for the subsequent vulcanization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110683661.9A CN113442341A (en) | 2021-06-21 | 2021-06-21 | Preparation mold of socket type pipeline sealing ring and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110683661.9A CN113442341A (en) | 2021-06-21 | 2021-06-21 | Preparation mold of socket type pipeline sealing ring and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113442341A true CN113442341A (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110683661.9A Pending CN113442341A (en) | 2021-06-21 | 2021-06-21 | Preparation mold of socket type pipeline sealing ring and use method thereof |
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2021
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|---|---|---|---|---|
| CN101774242A (en) * | 2009-12-31 | 2010-07-14 | 高尔特硅橡胶制品(南京)有限公司 | Method for manufacturing seamless silica gel plates and vulcanizing press applied to same |
| CN204658759U (en) * | 2015-04-09 | 2015-09-23 | 浙江宏利汽车零部件有限公司 | A kind of top glue sulfurizing mould |
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