CN110360317B - Piston sealing element and machining process thereof - Google Patents
Piston sealing element and machining process thereof Download PDFInfo
- Publication number
- CN110360317B CN110360317B CN201910494155.8A CN201910494155A CN110360317B CN 110360317 B CN110360317 B CN 110360317B CN 201910494155 A CN201910494155 A CN 201910494155A CN 110360317 B CN110360317 B CN 110360317B
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- CN
- China
- Prior art keywords
- die
- opening
- quarto
- mold
- piston
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Classifications
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- 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
- B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
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- 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
- B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
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- 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
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/143—Sealing provided on the piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/28—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction of non-metals
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- 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
Abstract
The invention relates to a piston sealing element and a processing technology thereof, belonging to the technical field of pistons, comprising a sealing element body, wherein an annular raised sealing strip is arranged below the sealing element body, a slot for cutting off the sealing strip is arranged on the sealing strip, the slot is vertical to the sealing strip, the problem of small feeding volume of a building concrete pump truck on the market is effectively solved through the slot, the pumping volume of the building concrete pump truck is increased, the frequent replacement of a concrete piston of the concrete pump truck is reduced, the problems of cost reduction, efficiency improvement and energy consumption saving are solved, a quarto die and a three-opening die are combined with a vulcanizing machine, harmful smoke in the vulcanizing heating process is effectively removed, the production efficiency is improved, and the product quality is.
Description
Technical Field
The invention relates to a piston sealing element and a processing technology thereof, in particular to a concrete pump truck concrete piston, and belongs to the technical field of pistons.
Background
The existing concrete piston of the concrete pump truck in the market has the defects of simple process and design, the piston made of the traditional material cannot adapt to the severe use environment of the concrete pump truck, so that the piston rapidly loses efficacy in a cylinder body when in use, the frequent replacement of the concrete piston has great influence on the work efficiency, the use cost is increased, and much time is wasted.
In addition, the concrete piston can generate harmful smoke to harm the health in the vulcanization heating process.
The problem that the traditional concrete piston is not wear-resistant is effectively solved, the service life of the concrete piston is greatly prolonged, harmful smoke generated in the machining process is solved, and the aim of improving the working efficiency is fulfilled.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a piston sealing element and a processing technology thereof.
The technical scheme for solving the technical problems is as follows:
the utility model provides a piston seal, includes the sealing member body, sealing member body below is equipped with the bellied sealing strip of annular, be equipped with the fluting with the sealing strip disconnection on the sealing strip, the fluting is perpendicular with the sealing strip.
Further, the sealing strips are more than two, an oil guide groove is formed between every two adjacent sealing strips, and the grooves in the two adjacent sealing strips are distributed in a staggered mode.
Further, the height of the sealing strip is at least 5mm, and the number of the grooves is more than one pair.
Further, the width of the slot is 0.5-1.5 mm.
Further, the width of the slot is one millimeter.
Further, the depth of the groove is the distance between the sealing element body and the maximum diameter of the sealing strip.
Furthermore, the number of the sealing strips is two, the included angle between the adjacent grooves on each sealing strip is 90 degrees, and the included angle between the adjacent grooves on the two sealing strips is 45 degrees.
The utility model provides a shaping vulcanization mould utensil of usefulness as last piston seal processing, includes the three division moulds of movable mounting on the vulcanizer, three division moulds include three division die bed boards, three division mold cavities and the three-opening die gland that set up of mutually supporting, all be equipped with cylinder type terrace die on three division die bed boards and the three division die gland, three division die gland cylinder type terrace die diameter is greater than three division die bed board cylinder type terrace die diameter, three division mold cavities are annular cavity, the height behind three division die cavity height and the three division die gland cylinder type terrace die and the three division die bed board cylinder type terrace die connected is the same, three division mold cavity internal surface below is equipped with the sealing strip notch ring, is equipped with the fluting lug that breaks the sealing strip notch ring on.
Furthermore, the number of the sealing strip concave rings is more than two, an oil guide groove convex ring is formed between every two adjacent sealing strip concave rings, the slotting convex blocks on the two adjacent sealing strip concave rings are distributed in a staggered mode, and the inner surface structure of the three-opening mold cavity is matched with the structure on the piston sealing piece.
A processing technology of a piston sealing element comprises the following processing steps,
putting square rubber into a quarto mold cavity;
pressing rubber into a cavity formed by the quarto die bottom plate, the quarto storage chamber and the quarto die cavity through a quarto die pressing cover, and heating and vulcanizing the quarto die in a vacuum cover on a vulcanizing machine to obtain an annular hollow part;
step three, the annular hollow part in the step two is placed into a cavity formed by the three-opening die base plate and the three-opening die cavity;
pressing the three-opening mold pressing cover into a three-opening mold base plate, and allowing the three-opening mold to enter a vacuum cover on a vulcanizing machine for heating and vulcanizing;
and step five, moving the three-opening mold out of the vulcanizing machine, and opening the three-opening mold gland and the three-opening mold cavity in sequence to obtain the piston sealing element.
Compared with the prior art, the invention has the beneficial effects that: the problem that the feeding square amount of a building concrete pump truck on the market is small is effectively solved through slotting, the pumping square amount of the concrete pump truck is increased, the frequent replacement of a concrete piston of the concrete pump truck is reduced, the problems of cost reduction, efficiency improvement and energy consumption saving are solved, harmful smoke in a vulcanization heating process is effectively removed by combining a quarto die and a three-opening die with a vulcanizing machine, the production efficiency is improved, the product quality is guaranteed, and the problems that the concrete piston is not wear-resistant and the service life is prolonged are solved by the manufactured piston sealing element.
Drawings
Fig. 1 is a perspective view of the piston seal structure of the present invention.
Fig. 2 is a schematic view of the piston seal structure of the present invention.
Fig. 3 is a schematic view of a three-opening mold structure according to the present invention.
FIG. 4 is a schematic view of the quarto mold structure of the present invention.
In the figure, 1, quarto mould; 11. a quarto die bottom plate; 12. a quarto storage chamber; 13. a quarto model cavity; 14. fourthly, opening a die and pressing a cover; 2. three-opening a die; 21. three-opening a die base plate; 22. three mold cavities are opened; 23. pressing the cover with three opening moulds; 3. a sealing strip concave ring; 4. slotting a convex block; 5. oil guide groove convex ring; 51. an oil guide groove; 6. a piston seal; 61. a sealing strip; 62. grooving; 63. an oil guide groove; 64. a seal body.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The piston seal comprises a seal body 64, wherein an annular convex sealing strip 61 is arranged below the seal body 64, a groove 62 for cutting off the sealing strip 61 is formed in the sealing strip 61, the groove 62 is perpendicular to the sealing strip 61, and the groove 62 is shown in fig. 1 or fig. 2.
In the use process, the piston is under its abominable operational environment and high temperature high pressure, and the concrete piston can take place to be influenced by pressure in the jar and produce the deformation, and concrete piston top contacts with concrete, and the below is connected with connecting rod and cavity, and the upper end propelling movement concrete can play fine sealed effect, and when back stretching out and drawing back, the effectual concrete piston seal area that gets into of water and emollient in the cavity through vertical fluting 62 plays fine lubricated effect.
The sealing strip 61 is more than two, forms between two adjacent sealing strips 61 and leads oil groove 63, and fluting 62 crisscross distribution on two adjacent sealing strips 61, the high wear-resisting and good self-lubrication nature of product and the scientific oil groove 63 design of leading can effectual increase building square volume with reduce the harm to the cylinder body, can reach reduce cost and raise the efficiency, reduce the energy consumption, also improve to some extent to the environment simultaneously.
The height of the sealing strips 61 is at least 5mm, and the number of the grooves 62 is more than one pair.
The width of the open slot 62 is 0.5-1.5mm, and the use effect is very poor when the width of the open slot 62 is less than 0.5mm or more than 1.5 mm.
The slot 62 is preferably one millimeter wide.
The depth of the slot 62 is the distance between the seal body 64 and the largest diameter of the seal strip 61.
The sealing strip 61 is two, the contained angle between the adjacent fluting 62 on every sealing strip 61 is 90, the contained angle between the adjacent fluting 62 on two sealing strips 61 is 45, according to scientific analysis, divide 90 to set up fluting 62 on annular sealing strip 61, the contained angle between the adjacent fluting 62 from top to bottom becomes 45 evenly distributed, when the piston uses in the concrete pump truck jar like this, front end propelling movement concrete can play fine sealed effect, when back stretching out and drawing back, water and emollient in the cavity can pass through the effectual concrete piston seal zone that gets into of 45 vertical fluting 62 of unique design, play fine lubricated effect.
The utility model provides a shaping vulcanization mould utensil that processing piston sealing member was used, includes three division of moulds 2 of movable mounting on the vulcanizer, three division of moulds 2 are including three division of die bed boards 21, three division of die cavities 22 and three division of die gland 23 that set up mutually support, all be equipped with the cylinder type terrace die on three division of die bed boards 21 and the three division of die gland 23, three division of die gland 23 cylinder type terrace die diameter is greater than three division of die bed board 21 cylinder type terrace die diameters, three division of die cavity 22 is annular cavity, three division of die cavity 22 height is the same with height behind three division of die gland 23 cylinder type terrace die and the three division of die bed board 21 cylinder type terrace die connected, three division of die cavity 22 internal surface below is equipped with sealing strip notch ring 3, is equipped with the fluting lug.
The quantity of sealing strip concave ring 3 is more than two, forms between two adjacent sealing strip concave ring 3 and leads oil groove bulge loop 5, and the fluting lug on two adjacent sealing strip concave ring is crisscross to be distributed, the internal surface structure of three die sinking die cavities 22 is identical with the structure on the piston sealing member 6.
When in use, the quarto die 1 and the three-opening die 2 are respectively arranged on a full-automatic rubber vacuumizing plate vulcanizing machine with the model number of 200T-3RT, firstly the quarto die 1 is used for vulcanizing rubber in vacuum to form a ring-shaped hollow semi-finished product, then the ring-shaped hollow semi-finished product is placed on the three-opening die base plate 21, then the three-opening die cavity 22 moves downwards to the upper part of the three-opening die base plate 21, then the three-opening die gland 23 moves downwards to the lower surface of the cylindrical male die of the three-opening die gland 23 to be matched with the upper surface of the cylindrical male die of the three-opening die base plate 21, the three-opening die 2 is moved into a vacuum cover for vacuum vulcanization, the ring-shaped hollow semi-finished product is matched with the sealing strip concave ring 3, the slotting convex block 4 and the oil guide groove convex ring 5 in the three-opening die cavity 22 in the vulcanization heating process, the piston, meanwhile, the production efficiency is improved, the product quality is guaranteed, and the manufactured piston sealing element 6 solves the problems that the concrete piston is not wear-resistant and has long service life.
A processing technology of a piston sealing element comprises the following processing steps,
putting square rubber into a quarto mold cavity 13;
secondly, pressing rubber into a cavity formed by the quarto die bottom plate 11, the quarto material storage chamber 12 and the quarto die cavity 13 through the quarto die pressing cover 14, and putting the quarto die 1 into a vacuum cover on a vulcanizing machine for heating and vulcanizing to obtain an annular hollow part;
step three, the annular hollow part in the step two is placed into a cavity formed by a three-opening die bottom plate 21 and a three-opening die cavity 22;
pressing the three-opening mold pressing cover 23 onto the three-opening mold base plate 21, and allowing the three-opening mold 2 to enter a vacuum cover on a vulcanizing machine for heating and vulcanizing;
and step five, moving the three-opening mold 2 out of the vulcanizing machine, and opening the three-opening mold gland 23 and the three-opening mold cavity 22 in sequence to obtain the piston sealing element 6.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (1)
1. A piston seal piece machining process is characterized in that: the processing steps are as follows,
putting square rubber into a quarto mold cavity (13);
pressing rubber into a cavity formed by a quarto mold bottom plate (11), a quarto material storage chamber (12) and a quarto mold cavity (13) through a quarto mold pressing cover (14), and heating and vulcanizing the quarto mold (1) in a vacuum cover on a vulcanizing machine to obtain an annular hollow part;
step three, the annular hollow part in the step two is placed into a cavity formed by the three-opening mold bottom plate (21) and the three-opening mold cavity (22);
pressing the three-opening mold pressing cover (23) onto the three-opening mold base plate (21), and allowing the three-opening mold (2) to enter a vacuum cover on a vulcanizing machine for heating and vulcanizing;
and step five, moving the three-opening mold (2) out of the vulcanizing machine, and opening the three-opening mold gland (23) and the three-opening mold cavity (22) in sequence to obtain the piston sealing element (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910494155.8A CN110360317B (en) | 2019-06-06 | 2019-06-06 | Piston sealing element and machining process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910494155.8A CN110360317B (en) | 2019-06-06 | 2019-06-06 | Piston sealing element and machining process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110360317A CN110360317A (en) | 2019-10-22 |
| CN110360317B true CN110360317B (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910494155.8A Active CN110360317B (en) | 2019-06-06 | 2019-06-06 | Piston sealing element and machining process thereof |
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| CN (1) | CN110360317B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892789A (en) * | 2020-08-21 | 2020-11-06 | 隆仕新材料科技(昆山)有限公司 | High-temperature-resistant high-pressure-resistant steam piston valve piston sealing element and preparation method thereof |
| CN112048138A (en) * | 2020-08-21 | 2020-12-08 | 隆仕新材料科技(昆山)有限公司 | Medium-resistant pilot type electromagnetic valve diaphragm and preparation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608616B (en) * | 2009-07-10 | 2011-07-06 | 三一重工股份有限公司 | Concrete pumping equipment and piston body thereof |
| CN202250806U (en) * | 2011-10-14 | 2012-05-30 | 三一重工股份有限公司 | Concrete piston, concrete pumping equipment and pumping mechanism thereof |
| CN202926589U (en) * | 2012-11-28 | 2013-05-08 | 中联重科股份有限公司 | Split piston sealing body, split piston, piston cylinder and concrete pumping equipment |
| CN202937446U (en) * | 2012-11-28 | 2013-05-15 | 中联重科股份有限公司 | Split type piston guide ring, split type piston, piston cylinder and concrete pumping device |
| CN203604188U (en) * | 2013-11-13 | 2014-05-21 | 三一汽车制造有限公司 | Piston and concrete pumping equipment |
| CN103967772B (en) * | 2014-05-26 | 2016-06-22 | 三一汽车制造有限公司 | A kind of concrete pump and concrete piston lubricating system thereof |
| CN210633942U (en) * | 2019-06-05 | 2020-05-29 | 龙口润林家电配件有限公司 | Piston sealing element forming vulcanization mould |
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| CN110360317A (en) | 2019-10-22 |
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