CN219427249U - Compression molding die for annular thin-wall oil bag - Google Patents
Compression molding die for annular thin-wall oil bag Download PDFInfo
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- CN219427249U CN219427249U CN202320520434.9U CN202320520434U CN219427249U CN 219427249 U CN219427249 U CN 219427249U CN 202320520434 U CN202320520434 U CN 202320520434U CN 219427249 U CN219427249 U CN 219427249U
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- die
- annular thin
- air
- compression molding
- oil bag
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- 238000000748 compression moulding Methods 0.000 title claims abstract description 21
- 238000000465 moulding Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000047 product Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a compression molding die of an annular thin-wall oil bag, which comprises an upper die, a middle die, a die core, a lower die and an air charging device, wherein the upper die, the middle die, the die core and the lower die are mutually matched to form a molding cavity of the annular thin-wall oil bag air charging bag body; the mold adopts a three-open mold structure design, has simple structure and strong operability, adopts an air charging device externally connected with an air source to finish compression molding, inflation and vulcanization molding in a molding cavity of the mold, and has the advantages of high bonding strength at the joint of an annular thin-wall oil bag product prepared by the molding mold, high compressive strength at the air tap, high product size precision, good appearance quality and high production efficiency.
Description
Technical Field
The utility model belongs to the technical field of rubber forming dies, and particularly relates to a compression molding die of an annular thin-wall oil bag.
Background
The annular thin-wall oil bag is a high-strength, oil-resistant and air-aging-resistant rubber product, the outer part of the annular thin-wall oil bag is in contact with oil, the inner part of the annular thin-wall oil bag is in contact with air, the annular thin-wall oil bag can work at the temperature of 150 ℃ at most, the annular thin-wall oil bag is required to bear repeated impact of air pressure without air leakage, and the requirement of long service life is required to be met.
Because the annular thin-wall oil bag has a complex structure and comprises an air nozzle and an inflatable bag body, the traditional annular thin-wall oil bag is generally vulcanized by adopting a vulcanizing tank, and the vulcanizing tank is equipment for vulcanizing rubber products by steam, and the vulcanizing method has the following defects that: 1. the hardware cost is high, a large pressure container needs to be purchased, and corresponding safety valves, pressure gauges, thermometers and other instruments are arranged; 2. the energy consumption is high, and a large amount of steam or electric energy is required to be consumed for heating and heat preservation; 3. the production efficiency is low, only a certain amount of products can be vulcanized at a time, and the tank door needs to be opened and closed by manual operation; 4. the product quality is unstable, and the problems of poor self-adhesive property of rubber, low compressive strength at the air tap, poor appearance quality of the product, low dimensional accuracy, low compactness of the product and the like easily occur.
Disclosure of Invention
The utility model provides a compression molding die for an annular thin-wall oil bag, which solves the problems of high production cost, low production efficiency, unstable product quality and the like caused by vulcanizing the annular thin-wall oil bag by adopting a vulcanizing tank at present.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the molding die comprises an upper die, a middle die, a die core, a lower die and an air charging device, wherein the upper die, the middle die, the die core and the lower die are mutually matched to form a molding cavity of the annular thin-wall oil bag air charging bag body, the molding cavity is of an annular cavity structure, an air tap channel is outwards formed in the middle die and communicated with the cavity, the air tap channel is used for accommodating an air tap of the annular thin-wall oil bag, and the air tap is outwards connected with the air charging device.
Further, the inflating device comprises a pipe joint, the inner end of the pipe joint is connected with the air tap, the outer end of the pipe joint is connected with an inflating pipe through a pipe sleeve and a nut, and the inflating pipe is externally connected with an air source and a pressure gauge.
Further, screw holes are formed in the middle die and above the air tap channel, and countersunk screws are arranged in the screw holes.
Further, a sealing ring is arranged on the contact surface of the pipe joint and the air tap.
Further, the upper end faces of the lower dies on two sides of the cavity are provided with glue flowing grooves.
Furthermore, glue flowing grooves are formed in the upper end faces of the middle die and the die core on the two sides of the die cavity.
Further, the upper die, the middle die, the die core and the lower die are all of annular structures.
Further, an upper die opening groove is formed in the outer edge of the lower end of the upper die; the outer edge of the lower end of the middle die is provided with a lower die opening groove.
Further, the inflation tube is an inflation copper tube.
Further, the section of the molding cavity is rectangular, circular or elliptical.
Compared with the prior art, the utility model has the following beneficial effects:
1. the mold adopts a three-open mold structure design, has simple structure and strong operability, adopts an air charging device externally connected with an air source to finish compression molding, inflation and vulcanization molding in a molding cavity of the mold, and has the advantages of high bonding strength at the joint of an annular thin-wall oil bag product prepared by the molding mold, high compressive strength at the air tap, high product size precision, good appearance quality and high production efficiency.
2. The die disclosed by the utility model is integrally designed by adopting an annular structure, is light in weight, accurate in positioning, high in matching precision, easy to open and close, and long in service life.
3. The air charging device of the die is in sealing connection with the air tap through the matching of the sealing ring and the conical surface, so that the sealing effect is good, and the air delivery pressurization is stable.
It is, of course, not necessary for all of the above advantages to be achieved simultaneously in the practice of the various aspects of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other embodiments of the drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of an annular thin-walled oil bag according to embodiment 1 of the present utility model;
FIG. 2 is a schematic diagram of a mold according to embodiment 1 of the present utility model;
FIG. 3 is a schematic view showing the structure of an inflator according to embodiment 1 of the present utility model;
in the figure, a 1-annular thin-wall oil bag, a 101-inflatable bag body, a 102-air tap, a 2-upper die, a 3-middle die, a 301-countersunk screw, a 4-die core, a 5-lower die, a 6-inflatable device, a 601-pipe joint, a 602-sealing ring, a 603-sleeve, a 604-inflatable pipe and a 605-nut are arranged.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be. The present utility model will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the annular thin-wall oil bag 1 prepared by the utility model comprises an air bag body 101 and an air nozzle 102, wherein the air bag body 101 is of a closed annular structure, the cross section of the air bag body is generally circular or elliptical, and the air nozzle 102 is connected to the outer side of the air bag body 101 and is used for inflating the air bag body 101.
Example 1:
referring to fig. 2, the molding die for the annular thin-wall oil bag comprises an upper die 2, a middle die 3, a die core 4, a lower die 5 and an inflating device 6, wherein the upper die 2, the middle die 3, the die core 4 and the lower die 5 are mutually matched to form a molding cavity of the air bag body 101 of the annular thin-wall oil bag 1, the molding cavity is of an annular cavity structure, referring to fig. 2, in the embodiment, the cross section of the molding cavity is of a rectangular structure.
The upper die 2, the middle die 3, the die core 4 and the lower die 5 are all of annular structures, wherein the die core 4 is positioned at the inner ring position of the middle die 3, a forming cavity is formed between the die core 4 and the middle die 3, and the upper end surfaces of the die core 4 and the middle die 3 are matched with the upper die 1, the die core 4 and the lower end surface of the middle die 3 are matched with the lower die 5.
The middle mold is horizontally provided with an air nozzle channel outwards, the air nozzle channel is communicated with the molding cavity, the air nozzle channel is used for accommodating an air nozzle 102 of the annular thin-wall oil bag 1, and the air nozzle 102 is externally connected with the air charging device 6; referring to fig. 3, in this embodiment, the inflator 6 includes a pipe joint 601, an air passage is formed in the center of the pipe joint 601, an insertion port is provided at an inner end of the pipe joint 601, the pipe joint 601 is inserted outside the air tap 102 through the insertion port, a sealing ring 602 is provided at an inner ring of the insertion port, and the sealing ring 602 is used for sealing a gap between the insertion port of the pipe joint 601 and the air tap 102; the outer end air passage opening of the pipe joint 601 is butted with an air charging pipe 604, the air charging pipe 604 is made of copper pipes, the butted end of the air charging pipe 604 is in a horn shape, the outer end air passage opening of the pipe joint 601 is in a cone shape, the butted end of the air charging pipe 604 is sleeved on the outer end air passage opening of the pipe joint 601 and then is fixed through a sleeve 603 and a nut 605 to form cone-shaped matched seal, and the outer end of the air charging pipe 604 is connected with an air source and a pressure gauge to form a complete air inlet channel.
Screw holes are formed in the middle die 3 and above the air nozzle channels, countersunk screws 301 are arranged in the screw holes, the countersunk screws 301 can move downwards to play a role in fastening and fixing the air nozzles 102, and the countersunk screws 301 prevent the air nozzles from moving in the vulcanization process.
In the embodiment, two groups of annular gumming grooves are formed in the upper end face of the lower die, and two groups of annular gumming grooves are formed in the upper end faces of the middle die and the die core at the same time, so that redundant rubber can smoothly flow out, and a certain exhaust effect is achieved on the molding cavity.
Because the upper die 2, the middle die 3, the die core 4 and the lower die 5 are of annular structures, in order to facilitate die opening, an upper die opening groove is formed in the outer edge of the lower end of the upper die 2, a lower die opening groove is formed in the outer edge of the lower end of the middle die, the upper die opening groove and the lower die opening groove facilitate die opening, friction force of the whole die during die opening can be reduced, and deformation or damage of products can be prevented.
The working procedure of the utility model is described as follows:
according to the structural characteristics of each part of the annular thin-wall oil bag, the forming process related to the forming die mainly comprises the following steps: 1. compression molding and vulcanization molding. 2. Compression molding, inflation and vulcanization molding.
Specifically, the inner ends of the first air tap and the air tap are bonded with the film and the fabric in a compression molding vulcanization molding mode. 2. And integrally bonding the bonded air tap and the semi-finished product of the inflatable bag body, and then performing compression molding, inflation, vulcanization and molding through the mold in the embodiment. The semi-finished product of the inflatable bag body is prepared in advance by extrusion through an extruder.
The compression molding, inflation and vulcanization molding process comprises the following steps:
1. and (5) raising the temperature of the flat vulcanizing machine to the working temperature.
2. And (3) placing the semi-finished oil bag product bonded with the air tap into the die in the embodiment, externally connecting the air tap with an air source through an air charging device, and then integrally conveying the die into a flat vulcanizing machine for pressing.
3. And (3) opening an air source switch to inflate the oil bag semi-finished product, and adjusting the air source pressure through a pressure gauge to start vulcanization.
4. After the vulcanizing time is up, the air source is closed, the pressure of the vulcanizing machine is released, and then the die is opened to take out the product.
The die provided by the embodiment is light in weight, strong in operability, high in matching precision, good in sealing performance of the inflating device, and the annular thin-wall oil bag product produced by the method is high in size precision, good in appearance quality and high in production efficiency.
Example 2:
unlike in embodiment 1, in this embodiment, the molding cavity has a circular cross section.
The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.
Claims (10)
1. The molding die is characterized by comprising an upper die, a middle die, a die core, a lower die and an air charging device, wherein the upper die, the middle die, the die core and the lower die are mutually matched to form a molding cavity of the annular thin-wall oil bag air charging bag body, the molding cavity is of an annular cavity structure, an air tap channel is outwards formed in the middle die and communicated with the cavity, the air tap channel is used for accommodating an air tap of the annular thin-wall oil bag, and the air tap is outwards connected with the air charging device.
2. The compression molding die of the annular thin-wall oil bag according to claim 1, wherein the inflating device comprises a pipe joint, the inner end of the pipe joint is connected with the air tap, the outer end of the pipe joint is connected with an inflating pipe through a pipe sleeve and a nut, and the inflating pipe is externally connected with an air source and a pressure gauge.
3. The compression molding die of the annular thin-wall oil bag according to claim 2, wherein screw holes are formed in the middle die and above the air tap channel, and countersunk screws are arranged in the screw holes.
4. A compression molding die for an annular thin-walled oil bladder according to claim 3, wherein a sealing ring is arranged at the contact surface of the pipe joint and the air tap.
5. The compression molding die of the annular thin-wall oil bag according to claim 4, wherein the upper end faces of the lower dies on two sides of the die cavity are provided with glue flowing grooves.
6. The compression molding die of the annular thin-wall oil bag according to claim 5, wherein the upper end faces of the middle die and the die core on two sides of the die cavity are provided with glue flowing grooves.
7. The compression molding die for the annular thin-wall oil bag according to claim 6, wherein the upper die, the middle die, the die core and the lower die are all of annular structures.
8. The compression molding die of the annular thin-wall oil bag according to claim 7, wherein an upper die opening groove is formed at the outer edge of the lower end of the upper die; the outer edge of the lower end of the middle die is provided with a lower die opening groove.
9. The compression molding die of the annular thin-walled oil bladder according to claim 8, wherein the gas-filled tube is a gas-filled copper tube.
10. The compression molding die of the annular thin-walled oil bladder according to claim 9, wherein the molding cavity has a rectangular, circular or oval cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320520434.9U CN219427249U (en) | 2023-03-17 | 2023-03-17 | Compression molding die for annular thin-wall oil bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320520434.9U CN219427249U (en) | 2023-03-17 | 2023-03-17 | Compression molding die for annular thin-wall oil bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219427249U true CN219427249U (en) | 2023-07-28 |
Family
ID=87332969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320520434.9U Active CN219427249U (en) | 2023-03-17 | 2023-03-17 | Compression molding die for annular thin-wall oil bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219427249U (en) |
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2023
- 2023-03-17 CN CN202320520434.9U patent/CN219427249U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Jiao Inventor before: Cai Xinyan Inventor before: Wang Jiao |
|
| CB03 | Change of inventor or designer information |