CN213198438U - Integrated spring exhaust sleeve - Google Patents
Integrated spring exhaust sleeve Download PDFInfo
- Publication number
- CN213198438U CN213198438U CN202021908137.4U CN202021908137U CN213198438U CN 213198438 U CN213198438 U CN 213198438U CN 202021908137 U CN202021908137 U CN 202021908137U CN 213198438 U CN213198438 U CN 213198438U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- mandrel
- hole
- shaft body
- integrated spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000013022 venting Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000004073 vulcanization Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
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- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The utility model discloses an integrated spring exhaust sleeve, which comprises a sleeve and a mandrel coaxially and movably arranged in the sleeve, wherein a spring is sleeved on the periphery of the mandrel, and the mandrel comprises a shaft body, a round platform connected to the upper end part of the shaft body and a limiting block connected to the lower end part of the shaft body; the limiting block is positioned outside the sleeve; a radial hole is formed downwards in the shaft body of the mandrel, and a through hole communicated with the radial hole is horizontally formed in the outer wall of the mandrel positioned below the circular truncated cone; and a sealing ring matched with the sleeve is sleeved on the outer wall of the mandrel below the through hole. The utility model can effectively solve the problem of blockage or damage caused by the rubber permeating into the gaps of the core shaft and the sleeve during vulcanization; the utility model discloses a sealing washer play and make the sealed effect in gap between dabber and the sleeve pipe, force gas can only be followed outside the passageway discharge child in radial hole, sealing washer and first boss cooperate and can prevent to take place crooked condition when the dabber from making reciprocating motion simultaneously.
Description
Technical Field
The utility model relates to a tire vulcanization technical field specifically is an integral type spring air discharge sleeve.
Background
The process of tyre manufacture requires a heat-curing stage, where the green tyre is loaded onto a curing press and cured in a mould for a suitable time and at a suitable elevated temperature to form the finished tyre. In the heating and vulcanizing stage, the air in the mold needs to be exhausted, and the common exhaust hole sleeve can leave tire hair on the surface of the tire, so that the tire is required to be trimmed and the appearance is influenced. In view of the above, spring venting sleeves have been developed.
Currently, the existing spring venting sleeves generally include a sleeve-shaped sleeve, a mandrel coaxially sleeved in the outer sleeve, and a spring sleeved on the mandrel. In practical application, the spring air sleeve is embedded into the exhaust hole by utilizing the exhaust hole which is formed in the mold and penetrates through the mold cavity and the external exhaust equipment, and the end of the sealing matching surface of the sleeve is flush with the wall of the mold cavity. The air exhaust sleeve of the spring can be blocked or damaged due to the fact that rubber permeates and is used for a long time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an integral type spring air discharge sleeve to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an integrated spring exhaust sleeve comprises a sleeve and a mandrel coaxially and movably arranged in the sleeve, wherein a spring is sleeved on the periphery of the mandrel, and the mandrel comprises a shaft body, a round table connected to the upper end part of the shaft body and a limiting block connected to the lower end part of the shaft body; the limiting block is positioned outside the sleeve; a radial hole is formed downwards in the shaft body of the mandrel, and a through hole communicated with the radial hole is horizontally formed in the outer wall of the mandrel positioned below the circular truncated cone; and a sealing ring matched with the sleeve is sleeved on the outer wall of the mandrel below the through hole.
As a further aspect of the present invention: the number of the limiting blocks is four, and the limiting blocks are distributed on the bottom end face of the mandrel in a cross shape.
As a further aspect of the present invention: the sleeve is internally provided with a shaft hole for sleeving the mandrel, and the top of the shaft hole is a conical hole matched with the circular truncated cone; the maximum outer diameter of the circular truncated cone is larger than the maximum inner diameter of the conical hole.
As a further aspect of the present invention: a first boss is formed on the inner wall of the lower end of the sleeve.
As a further aspect of the present invention: one end of the spring is abutted against the sealing ring, and the other end of the spring is abutted against the first boss.
As a further aspect of the present invention: and a second boss is formed at the upper end of the outer wall of the sleeve.
As a further aspect of the present invention: the sealing ring is made of rubber.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has novel structure, the gas in the tire flows to the through hole along the radial hole and is discharged out of the tire, and the problem of blockage or damage caused by the permeation of rubber or other dust into the gaps of the mandrel and the sleeve during vulcanization can be effectively solved, thereby prolonging the service life and reducing the replacement times; the utility model discloses a sealing washer play and make the sealed effect in gap between dabber and the sleeve pipe, force gas can only be followed outside the passageway discharge child in radial hole, and the cooperation takes place crooked condition when sealing washer and first boss cooperate from top to bottom simultaneously can prevent that the dabber from making reciprocating motion.
Drawings
FIG. 1 is a cross-sectional view of a mandrel according to the present invention;
FIG. 2 is a cross-sectional view of the sleeve of the present invention;
FIG. 3 is a schematic view of the assembly of the components of the present invention;
in the figure: the sealing structure comprises a sleeve 1, a conical hole 11, a first boss 12, a second boss 13, a mandrel 2, a circular truncated cone 21, a limiting block 22, a through hole 23, a radial hole 24, a spring 3 and a sealing ring 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, in an embodiment of the present invention, an integrated spring air exhausting sleeve includes a sleeve 1 and a mandrel 2 coaxially and movably disposed in the sleeve 1, wherein a spring 3 is sleeved on the outer periphery of the mandrel 2, and the mandrel 2 includes a shaft body, a circular truncated cone 21 connected to an upper end portion of the shaft body, and a limiting block 22 connected to a lower end portion of the shaft body; the limiting block 22 is positioned outside the sleeve 1; a radial hole 24 is formed downwards in the shaft body of the mandrel 2, and a through hole 23 communicated with the radial hole 24 is horizontally formed in the outer wall of the mandrel 2 below the circular truncated cone 21; and a sealing ring 4 matched with the sleeve 1 is sleeved on the outer wall of the mandrel 2 below the through hole 23.
Furthermore, the number of the limiting blocks 22 is four, and the limiting blocks are distributed on the bottom end face of the mandrel 2 in a cross shape. The limiting block 22 limits the axial upward movement of the mandrel 2.
Furthermore, a shaft hole for sleeving the mandrel 2 is formed in the sleeve 1, and the top of the shaft hole is a conical hole 11 matched with the circular truncated cone 21; the maximum outer diameter of the circular truncated cone 21 is larger than the maximum inner diameter of the conical hole 11. In a natural state, the circular truncated cone 21 is attached to the conical hole 11 under the action of gravity; in the vulcanization process, other parts in the tire are heated and expanded, the mandrel 2 is pushed upwards under the action of gas thrust and pulled back under the constraint of the spring 3, the mandrel 2 does a plurality of reciprocating motions, and the circular truncated cone 2 limits the axial downward motion of the mandrel 2. The inner wall of the lower end of the sleeve 1 is provided with a first boss 12, the first boss 12 has the function of preventing rubber liquid from splashing to a gap between the mandrel 2 and the sleeve 1, and is matched with the sealing ring 4 below the through hole 23 to prevent the mandrel 2 from being inclined. The upper end of the outer wall of the sleeve 1 is provided with a second boss 13, and the second boss 13 is arranged to facilitate easier operation when the sleeve 1 is inserted and pulled out.
Further, one end of the spring 3 abuts against the seal ring 4, and the other end abuts against the first boss 12.
Further, the material of sealing washer 4 is rubber, and it closely laminates with sleeve pipe 1 inner wall all the time, sealing washer 4 can prevent that rubber liquid dust etc. from splashing the gap between dabber 2 and the sleeve pipe 1, sealing washer 4 prevents with first boss 12 cooperation from taking place crooked when dabber 2 makes reciprocating motion from top to bottom simultaneously.
The utility model has novel structure and stable operation, when in use, the integrated spring exhaust sleeve is inserted into the exhaust hole to complete the operation, and the rubber liquid or other dust can be effectively prevented from splashing to the gap between the mandrel 2 and the sleeve 1 in the vulcanization process, thereby prolonging the service life and reducing the replacement times; if the situation that the parts are abraded due to the fact that the spring loses elasticity or is used for a long time, the exhaust hole can be integrally pulled out of the integrated spring exhaust sleeve to be replaced, and the device is convenient and fast.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (7)
1. An integrated spring exhaust sleeve comprises a sleeve (1) and a mandrel (2) coaxially and movably arranged in the sleeve (1), wherein a spring (3) is sleeved on the periphery of the mandrel (2), and the integrated spring exhaust sleeve is characterized in that the mandrel (2) comprises a shaft body, a round table (21) connected to the upper end part of the shaft body and a limiting block (22) connected to the lower end part of the shaft body; the limiting block (22) is positioned outside the sleeve (1); a radial hole (24) is formed downwards in the shaft body of the mandrel (2), and a through hole (23) communicated with the radial hole (24) is horizontally formed in the outer wall of the mandrel (2) below the circular truncated cone (21); the outer wall of the mandrel (2) below the through hole (23) is sleeved with a sealing ring (4) matched with the sleeve (1).
2. The integrated spring air-vent cover as claimed in claim 1, wherein the number of the limiting blocks (22) is four, and the limiting blocks are distributed on the bottom end face of the mandrel (2) in a cross shape.
3. The integrated spring exhaust sleeve according to claim 1, wherein a shaft hole for sleeving the mandrel (2) is formed in the sleeve (1), and the top of the shaft hole is a conical hole (11) matched with the circular truncated cone (21); the maximum outer diameter of the circular truncated cone (21) is larger than the maximum inner diameter of the conical hole (11).
4. An integrated spring venting sleeve as claimed in claim 1, wherein the lower end of the sleeve (1) is formed with a first boss (12) on the inner wall thereof.
5. An integrated spring exhaust cover according to claim 4, wherein one end of the spring (3) abuts against the lower end of the sealing ring (4), and the other end abuts against the upper end of the first boss (12).
6. An integrated spring venting sleeve as defined in claim 1 wherein the sleeve (1) is formed with a second boss (13) at the upper end of its outer wall.
7. The integrated spring air vent cover according to claim 1, wherein the sealing ring (4) is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021908137.4U CN213198438U (en) | 2020-09-03 | 2020-09-03 | Integrated spring exhaust sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021908137.4U CN213198438U (en) | 2020-09-03 | 2020-09-03 | Integrated spring exhaust sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213198438U true CN213198438U (en) | 2021-05-14 |
Family
ID=75844276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021908137.4U Expired - Fee Related CN213198438U (en) | 2020-09-03 | 2020-09-03 | Integrated spring exhaust sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213198438U (en) |
-
2020
- 2020-09-03 CN CN202021908137.4U patent/CN213198438U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210514 |