CN112519129A - Rubber tube vulcanization mould structure - Google Patents
Rubber tube vulcanization mould structure Download PDFInfo
- Publication number
- CN112519129A CN112519129A CN202011400829.2A CN202011400829A CN112519129A CN 112519129 A CN112519129 A CN 112519129A CN 202011400829 A CN202011400829 A CN 202011400829A CN 112519129 A CN112519129 A CN 112519129A
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- China
- Prior art keywords
- die
- fixed
- rubber tube
- vulcanization
- block
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- 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.)
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- 238000004073 vulcanization Methods 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 60
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000004636 vulcanized rubber Substances 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
Images
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/261—Moulds having tubular mould cavities
-
- 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
- B29C35/18—Cold vulcanisation
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2681—Moulds with rotatable mould parts
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7331—Heat transfer elements, e.g. heat pipes
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a rubber tube vulcanization mold structure which comprises a workbench, wherein support frames are fixed on the surfaces of two sides of the top of the workbench, one end of each support frame is fixed on the workbench, a top plate is fixed at the other end of each support frame, a plurality of electric hydraulic rods are installed on the surface of the bottom of the top plate, and one ends of the electric hydraulic rods are installed on the top plate. According to the invention, when the controller starts the electric hydraulic rod to enable the upper sealing die to descend, the upper sealing die is in sealing fit with the lower sealing die, so that the outer die and the inner die are in sealing treatment in the vulcanization groove, when the upper sealing die and the lower sealing die are in sealing fit, the motor can be started through the controller, the motor drives the limiting rod to rotate through the movable shaft when being started, the rotating limiting rod drives the limiting plate on the clamping block to rotate through the clamping groove block, so that the outer die and the inner die rotate in the vulcanization groove, sufficient contact can be conveniently carried out on vulcanization raw materials contacted with the rubber tube on the inner die, and the effect of all-round vulcanization of the rubber tube is achieved.
Description
Technical Field
The invention relates to the technical field of rubber tube vulcanization processing, in particular to a rubber tube vulcanization mold structure.
Background
Vulcanized rubber refers to vulcanized rubber which has the characteristics of no stickiness, no easy breakage and the like, and most rubber products are made of the rubber. Also known as vulcanized rubber, commonly called rubber or rubber. The rubber material is called after vulcanization processing. After vulcanization, the raw rubber forms a spatial three-dimensional structure and has high elasticity, heat resistance, tensile strength, insolubility in an organic solvent and the like. The rubber articles are mostly vulcanized rubber. However, when the rubber tube is vulcanized, the rubber tube often cannot contact with the vulcanization raw material due to the fact that the mold is left standing for a long time at one position, so that the effect of integral vulcanization cannot be achieved, and the mold taking time is too long due to the fact that the mold is too long to cool during mold taking, so that the processing time is delayed. Therefore, the present invention provides a rubber tube vulcanization mold structure to solve the problems in the background art.
Disclosure of Invention
The invention aims to provide a rubber tube vulcanization mold structure to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a rubber tube vulcanization mold structure comprises a workbench, wherein support frames are fixed on the surfaces of two sides of the top of the workbench, one end of each support frame is fixed on the workbench, a top plate is fixed at the other end of each support frame, a plurality of electric hydraulic rods are installed on the surface of the bottom of the top plate, one ends of the electric hydraulic rods are installed on the top plate, and mold devices are arranged at the other ends of the electric hydraulic rods;
the die device comprises an upper sealing die, a lower sealing die, a vulcanizing tank, an outer die, an inner die, a support block, a clamping block, a limiting plate, a bolt, a clamping groove block, a limiting rod, a screw hole, a movable shaft, a motor, an injection molding opening, a heat dissipation tank and a radiator;
the die device is fixed on the buffer plate through the fixed electric hydraulic rod of the upper sealing die, the die device is fixed on the buffer plate through the buffer block on the lower sealing die, the inner parts of the upper sealing die and the lower sealing die are both grooved and provided with a vulcanization groove, the inner part of the vulcanization groove is provided with an outer die, the inner part of the outer die is provided with an inner die, and the outer die and the inner die are both separated and separated into two parts from the middle part.
As a further scheme of the invention, the clamping groove block and the clamping block are both fixed on the inner mold, a limiting rod is fixed on one side wall of the clamping groove block, and a limiting plate is fixed on the side wall of the clamping block.
As a further scheme of the invention, the limiting rod is provided with a hole and a screw hole, and the clamping block is provided with a hole and a bolt.
As a further scheme of the invention, the clamping blocks are mutually limited and fixed through bolts on the limiting plates and screw holes in the clamping blocks on the clamping groove blocks.
As a further scheme of the invention, one side of the limiting rod is provided with a movable shaft, one side of the movable shaft is connected with a motor, a mounting frame is fixed on the motor, and the motor is mounted on the buffer plate through the mounting frame.
As a further scheme of the invention, the tops of one ends of the outer die and the inner die are both provided with holes and injection molding openings, and the front side surface and the rear side surface of the upper sealing die and the lower sealing die are both provided with grooves and heat dissipation grooves.
As a further scheme of the present invention, the inner sides of the heat dissipation grooves are connected with heat sinks, and the heat sinks are located inside the upper sealing die and the lower sealing die.
As a further scheme of the invention, the four corners of the bottom surface of the die device are respectively fixed with a buffer block, and the bottom of each buffer block is provided with a buffer plate.
As a further scheme of the invention, a plurality of buffer springs and a plurality of dampers are arranged at the bottom of the buffer plate, and the buffer plate is arranged on the top surface of the workbench through the plurality of buffer springs and the plurality of dampers.
As a further scheme of the invention, supporting legs are arranged at four corners of the bottom of the workbench, a storage groove is arranged below the workbench, and a controller is arranged on the right side wall of each supporting leg.
Compared with the prior art, the invention has the beneficial effects that:
1. when the rubber tube vulcanizing machine is used, a rubber tube to be vulcanized is placed into the inner mold, when the rubber tube is placed in the inner mold, the bolt is screwed, the bolt limits the clamping block in the clamping groove block through the screw hole, so that the clamping block is limited and fixed on the limiting rod, after the inner mold is sealed and fixed through the bolt, vulcanizing raw materials are introduced into the inner mold from the injection port, and the vulcanizing raw materials are contacted with the rubber tube in the inner mold, so that the effect of reactive vulcanization is achieved.
2. According to the invention, when the controller starts the electric hydraulic rod to enable the upper sealing die to descend, the upper sealing die is in sealing fit with the lower sealing die, so that the outer die and the inner die are in sealing treatment in the vulcanization groove, when the upper sealing die and the lower sealing die are in sealing fit, the motor can be started through the controller, the motor drives the limiting rod to rotate through the movable shaft when being started, the rotating limiting rod drives the limiting plate on the clamping block to rotate through the clamping groove block, so that the outer die and the inner die rotate in the vulcanization groove, sufficient contact can be conveniently carried out on vulcanization raw materials contacted with the rubber tube on the inner die, and the effect of all-round vulcanization of the rubber tube is achieved.
3. According to the invention, when the radiator is started, the inner parts of the upper sealing die and the lower sealing die are refrigerated, so that the outer die and the inner die in the vulcanizing tank are cooled, and the speed of taking the dies is accelerated.
Drawings
Fig. 1 is a schematic structural diagram of a rubber tube vulcanization mold structure.
FIG. 2 is a schematic structural diagram of a mold device in a rubber tube vulcanization mold structure.
FIG. 3 is a schematic structural diagram of an external mold in a rubber tube vulcanization mold structure.
Fig. 4 is a schematic structural diagram of an inner mold in a rubber tube vulcanization mold structure.
Fig. 5 is an enlarged schematic structural view of a position a in a rubber tube vulcanization mold structure.
Fig. 6 is an enlarged schematic structural view of a rubber tube vulcanization mold structure at a position B.
In the figure: 1. a work table; 2. a support frame; 3. a top plate; 4. an electro-hydraulic lever; 5. a mold device; 501. an upper sealing die; 502. a lower sealing die; 503. a vulcanizing tank; 504. an outer mold; 505. an inner mold; 506. supporting a block; 507. a clamping block; 508. a limiting plate; 509. a bolt; 510. a slot clamping block; 511. a limiting rod; 512. a screw hole; 513. a movable shaft; 514. a motor; 515. an injection molding port; 516. a heat sink; 517. a heat sink; 6. a buffer plate; 7. a buffer block; 8. a controller; 9. a shock absorber; 10. a buffer spring; 11. supporting legs; 12. a storage tank; 13. and (7) mounting frames.
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. 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.
Referring to fig. 1 to 6, in the embodiment of the present invention, a rubber tube vulcanization mold structure includes a workbench 1, support frames 2 are fixed on surfaces of two sides of the top of the workbench 1, one end of each support frame 2 is fixed on the workbench 1, a top plate 3 is fixed at the other end of each support frame 2, a plurality of electric hydraulic rods 4 are installed on the surface of the bottom of the top plate 3, one end of each electric hydraulic rod 4 is installed on the top plate 3, and a mold device 5 is arranged at the other end of each electric hydraulic rod 4;
the mold device 5 comprises an upper sealing mold 501, a lower sealing mold 502, a vulcanization groove 503, an outer mold 504, an inner mold 505, a support block 506, a clamping block 507, a limiting plate 508, a bolt 509, a clamping groove block 510, a limiting rod 511, a screw hole 512, a movable shaft 513, a motor 514, an injection molding opening 515, a heat dissipation groove 516 and a heat radiator 517;
the die device 5 is fixed on a buffer plate 6 through a fixed electric hydraulic rod 4 of an upper sealing die 501, the die device 5 is fixed on the buffer plate 6 through a buffer block 7 on a lower sealing die 502, the interiors of the upper sealing die 501 and the lower sealing die 502 are both grooved and provided with a vulcanizing tank 503, an outer die 504 is arranged inside the vulcanizing tank 503, an inner die 505 is arranged inside the outer die 504, and the outer die 504 and the inner die 505 are both separated from the middle part and separated into two parts;
the die device is characterized in that four corners of the bottom surface of the die device 5 are fixed with buffer blocks 7, the bottom of each buffer block 7 is provided with a buffer plate 6, the bottom of each buffer plate 6 is provided with a plurality of buffer springs 10 and a plurality of shock absorbers 9, each buffer plate 6 is installed on the top surface of the workbench 1 through the plurality of buffer springs 10 and the plurality of shock absorbers 9, the four corners of the bottom of the workbench 1 are provided with supporting legs 11, a storage groove 12 is arranged below the workbench 1, and a controller 8 is installed on the right side wall of each supporting leg 11;
the clamping groove block 510 and the clamping block 507 are fixed on the inner mold 505, a limit rod 511 is fixed on one side wall of the clamping groove block 510, a limit plate 508 is fixed on the side wall of the clamping block 507, the limiting rod 511 is provided with a hole and a screw hole 512, the clamping block 507 is provided with a hole and a bolt 509, the clamping block 507 is mutually limited and fixed through the bolt 509 on the limiting plate 508 and the screw hole 512 in the clamping block 507 on the clamping block 510, one side of the limiting rod 511 is provided with a movable shaft 513, one side of the movable shaft 513 is connected with a motor 514, the motor 514 is fixed with a mounting rack 13, the motor 514 is arranged on the buffer plate 6 through the mounting rack 13, the top of one end of the outer mold 504 and the inner mold 505 are both provided with holes and provided with injection molding ports 515, the front and back sides of the upper sealing die 501 and the lower sealing die 502 are both grooved and provided with heat dissipation grooves 516, the inner sides of the heat dissipation grooves 516 are connected with a heat sink 517, and the heat sink 517 is located inside the upper sealing die 501 and the lower sealing die 502.
The working principle of the invention is as follows:
when the rubber tube vulcanizing machine is used, a rubber tube to be vulcanized is placed into the inner mold 505, when the rubber tube is placed inside the inner mold 505, the bolt 509 is screwed, the bolt 509 limits the fixture block 507 in the clamp block 510 through the screw hole 512, so that the fixture block 507 is limited and fixed on the limiting rod 511, after the inner mold 505 is sealed and fixed through the bolt 509, vulcanizing raw materials are introduced into the inner mold 505 from the injection port 515, and the vulcanizing raw materials are contacted with the rubber tube in the inner mold 505, so that the reaction vulcanization effect is achieved;
when the controller 8 starts the electric hydraulic rod 4 to enable the upper sealing die 501 to descend, the upper sealing die 501 is in sealing fit with the lower sealing die 502, so that the outer die 504 and the inner die 505 are in sealing treatment inside the vulcanization groove 503, when the upper sealing die 501 and the lower sealing die 502 are in sealing fit, the controller 8 can start the motor 514, the motor 514 is started to drive the limiting rod 511 to rotate through the movable shaft 513, the rotating limiting rod 511 drives the limiting plate 508 on the clamping block 507 to rotate through the clamping groove block 510, so that the outer die 504 and the inner die 505 rotate inside the vulcanization groove 503, vulcanization raw materials contacted on the inner die 505 by a rubber pipe can be conveniently and fully contacted, and the effect of all-round vulcanization of the rubber pipe is achieved;
when the heat radiator 517 is activated, the inside of the upper sealing mold 501 and the lower sealing mold 502 is cooled, so that the outer mold 504 and the inner mold 505 inside the vulcanization tank 503 are cooled, and the mold taking speed is increased.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A rubber tube vulcanization mold structure comprises a workbench (1), and is characterized in that support frames (2) are fixed on the surfaces of two sides of the top of the workbench (1), one end of each support frame (2) is fixed on the workbench (1), a top plate (3) is fixed at the other end of each support frame (2), a plurality of electric hydraulic rods (4) are mounted on the surface of the bottom of the top plate (3), one end of each electric hydraulic rod (4) is mounted on the top plate (3), and a mold device (5) is arranged at the other end of each electric hydraulic rod (4);
the die device (5) comprises an upper sealing die (501), a lower sealing die (502), a vulcanization groove (503), an outer die (504), an inner die (505), a support block (506), a clamping block (507), a limiting plate (508), a bolt (509), a clamping groove block (510), a limiting rod (511), a screw hole (512), a movable shaft (513), a motor (514), an injection molding port (515), a heat dissipation groove (516) and a radiator (517);
the die device (5) is fixed through the fixed electric hydraulic rod (4) of the upper sealing die (501), the die device (5) is fixed on the buffer plate (6) through the buffer block (7) on the lower sealing die (502), the inner parts of the upper sealing die (501) and the lower sealing die (502) are grooved and provided with a vulcanization groove (503), the inner part of the vulcanization groove (503) is provided with an outer die (504), the inner part of the outer die (504) is provided with an inner die (505), and the outer die (504) and the inner die (505) are separated and separated into two parts from the middle part.
2. The rubber tube vulcanization mold structure of claim 1, wherein the notch block (510) and the fixture block (507) are fixed to the inner mold (505), a limit rod (511) is fixed to one side wall of the notch block (510), and a limit plate (508) is fixed to the side wall of the fixture block (507).
3. The vulcanization mold structure for rubber hose according to claim 2, characterized in that said limiting rod (511) is provided with a hole and a screw hole (512), and said fastening block (507) is provided with a hole and a bolt (509).
4. The rubber tube vulcanization mold structure of claim 3, wherein the fixture block (507) is mutually fixed by a bolt (509) on the limiting plate (508) and a screw hole (512) in the fixture block (507) on the fixture block (510).
5. The rubber tube vulcanization mold structure of claim 4, characterized in that a movable shaft (513) is installed on one side of the limiting rod (511), a motor (514) is connected to one side of the movable shaft (513), a mounting bracket (13) is fixed on the motor (514), and the motor (514) is installed on the buffer plate (6) through the mounting bracket (13).
6. The rubber tube vulcanization mold structure of claim 1, characterized in that the top of one end of the outer mold (504) and the top of one end of the inner mold (505) are both open and provided with injection ports (515), and the front and back sides of the upper sealing mold (501) and the lower sealing mold (502) are both slotted and provided with heat dissipation slots (516).
7. The rubber tube vulcanization mold structure of claim 6, characterized in that a heat sink (517) is connected to the inside of each heat dissipation groove (516), and the heat sinks (517) are located inside the upper sealing mold (501) and the lower sealing mold (502).
8. The rubber tube vulcanization mold structure of claim 1, characterized in that a cushion block (7) is fixed at each of four corners of the bottom surface of the mold device (5), and a cushion plate (6) is provided at the bottom of the cushion block (7).
9. A rubber tube vulcanization mold structure according to claim 8, characterized in that a plurality of cushion springs (10) and a plurality of dampers (9) are installed at the bottom of said cushion plate (6), and said cushion plate (6) is installed on the top surface of the table (1) through the plurality of cushion springs (10) and the plurality of dampers (9).
10. The rubber tube vulcanizing mold structure according to claim 1, wherein supporting legs (11) are respectively installed at four corners of the bottom of the workbench (1), a storage tank (12) is arranged below the workbench (1), and a controller (8) is installed on the right side wall of each supporting leg (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011400829.2A CN112519129A (en) | 2020-12-04 | 2020-12-04 | Rubber tube vulcanization mould structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011400829.2A CN112519129A (en) | 2020-12-04 | 2020-12-04 | Rubber tube vulcanization mould structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112519129A true CN112519129A (en) | 2021-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011400829.2A Pending CN112519129A (en) | 2020-12-04 | 2020-12-04 | Rubber tube vulcanization mould structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN112519129A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012945A (en) * | 2021-12-20 | 2022-02-08 | 浙江中冠汽车部件制造有限公司 | Rubber tube vulcanization shaping device for automobile |
| CN114261060A (en) * | 2021-11-25 | 2022-04-01 | 美东汇成生命科技(昆山)有限公司 | High-efficient injection mold processing of pipette |
| US20230050033A1 (en) * | 2021-08-12 | 2023-02-16 | Chong Mook Park | Plastic Tube Screen Fill Injection Mold |
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| CN114261060A (en) * | 2021-11-25 | 2022-04-01 | 美东汇成生命科技(昆山)有限公司 | High-efficient injection mold processing of pipette |
| CN114012945A (en) * | 2021-12-20 | 2022-02-08 | 浙江中冠汽车部件制造有限公司 | Rubber tube vulcanization shaping device for automobile |
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