CN215359600U - Forming die of fluoroplastic full-coated rubber O-shaped ring - Google Patents
Forming die of fluoroplastic full-coated rubber O-shaped ring Download PDFInfo
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- CN215359600U CN215359600U CN202120341383.4U CN202120341383U CN215359600U CN 215359600 U CN215359600 U CN 215359600U CN 202120341383 U CN202120341383 U CN 202120341383U CN 215359600 U CN215359600 U CN 215359600U
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Abstract
The embodiment of the disclosure provides a forming die for an O-shaped ring of fluoroplastic full-coated rubber, and relates to the technical field of O-shaped ring production dies. The forming die comprises an upper die, a lower die and a forming cavity positioned between the upper die and the lower die; the upper die is provided with a material injection channel, and the material injection channel is communicated with the forming cavity; the upper die is provided with a plurality of first through holes, each first through hole is internally provided with a first positioning column, and the first positioning column can extend into the forming cavity through the first through hole; the lower die is provided with a plurality of second through holes, each second through hole is internally provided with a second positioning column, and the second positioning columns can extend into the forming cavity through the second through holes. This public embodiment provides a forming die of fluoroplastics full cladding rubber O type circle can solve current fluoroplastics cladding rubber O type circle and connect the splice fracture to cause the uncontrollable problem of product quality.
Description
Technical Field
The utility model relates to a O type circle production mould technical field, concretely relates to forming die of fluoroplastics full cladding rubber O type circle.
Background
The O-shaped rubber ring is a sealing element with the largest production quantity and the widest application in all rubber and plastic sealing products, but is easy to wear and has poor chemical corrosion resistance and gas permeation resistance. The fluoroplastic fully-coated rubber O-shaped ring is formed by combining a rubber inner core and a relatively thin fluoroplastic coating, has the advantages of wide temperature application range, good compression resistance, friction resistance, excellent sealing durability, long service life, good application prospect and good economic benefit.
At present, the industry mainstream adopts a pipe penetrating method to produce a full-coating O-shaped ring, namely an inner layer rubber adhesive tape penetrates into an outer layer fluoroplastic pipe, then rubber is bonded by using glue, and finally the fluoroplastic pipe is fused at high temperature.
SUMMERY OF THE UTILITY MODEL
The purpose of this public embodiment provides is to overcome prior art not enough, provides a forming die of fluoroplastics full cladding rubber O type circle, and this forming die of fluoroplastics full cladding rubber O type circle can solve current fluoroplastics cladding rubber O type circle and connect the splice fracture to cause the uncontrollable problem of product quality.
The forming die for the fluoroplastic fully-coated rubber O-shaped ring comprises an upper die, a lower die and a forming cavity between the upper die and the lower die;
the upper die is provided with a material injection channel, and the material injection channel is communicated with the forming cavity;
the upper die is provided with a plurality of first through holes, each first through hole is internally provided with a first positioning column, and the first positioning column can extend into the forming cavity through the first through hole;
the lower die is provided with a plurality of second through holes, each second through hole is internally provided with a second positioning column, and the second positioning columns can extend into the forming cavity through the second through holes.
In one embodiment, the material injection channel comprises a main channel, sub-channels arranged on two sides of the main channel, and material injection channels arranged on the sub-channels.
In one embodiment, the sub-runners include a first sub-runner, a second sub-runner, and a third sub-runner;
one end of the first branch flow channel is communicated with one side of the main flow channel, the other end of the first branch flow channel is communicated with one end of the second branch flow channel, the other end of the second branch flow channel is communicated with one end of the third branch flow channel, and the other end of the third branch flow channel is communicated with the other side of the main flow channel;
the first sub-runner and the third sub-runner are arranged in parallel, and the second sub-runner is perpendicular to the first sub-runner and the third sub-runner.
In one embodiment, the main runner, the first sub-runner and the third sub-runner are all arranged in a direction extending parallel to the molding cavity; the second sub-runner and the material injection runner are both arranged along the direction perpendicular to the extending direction of the forming cavity.
In one embodiment, the cross-sectional shapes of the main runner, the sub-runners, and the injection runner are all circular.
In one embodiment, the inner diameter of the primary runner is not less than 2 times the inner diameter of the secondary runner.
In one embodiment, the first positioning column and the second positioning column are both pins.
In one embodiment, a concave structure is arranged on one side of the pin close to the forming cavity.
In one embodiment, 6 to 20 first through holes are formed in the upper die, and 6 to 20 second through holes are formed in the lower die.
In one embodiment, the molding cavity is arranged at the central position of the upper die and the lower die, and the first positioning column and the second positioning column extend into the molding cavity for the same length.
The implementation provided by the embodiment comprises the following technical effects:
the utility model provides a pair of forming die of fluoroplastics full cladding rubber O type circle, through set up on last mould and annotate the material passageway to adopt the processing of accurate injection machine injection mold, ensure the smooth seamless of product appearance, can make the quality of product also can obtain well control simultaneously, thereby solved current fluoroplastics cladding rubber O type circle and connect the splice fracture, the uncontrollable problem of product quality.
Drawings
Fig. 1 is a schematic structural diagram of a molding die for a fluoroplastic fully-coated rubber O-ring provided in this embodiment before injection.
Fig. 2 is a schematic structural view of the molding die for the fluoroplastic fully-coated rubber O-ring according to the embodiment of the present disclosure after material injection.
Fig. 3 is a schematic structural diagram of a material injection channel of a forming die of a fluoroplastic fully-covered rubber O-ring according to an embodiment of the present disclosure.
In the figure, 1-an upper die, 2-a lower die, 3-a forming cavity, 4-a rubber O-shaped ring, 11-an injection channel, 12-a first positioning column, 21-a second positioning column, 111-a main channel, 112-a branch channel, 113-an injection channel, 1121-a first branch channel, 1122-a second branch channel, and 1123-a third branch channel.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects provided by the present disclosure, as detailed in the appended claims.
As shown in fig. 1, the forming mold for the fluoroplastic fully-coated rubber O-ring provided in the embodiment of the present disclosure includes an upper mold 1, a lower mold 2, and a forming cavity 3 located between the upper mold 1 and the lower mold 2;
the upper die 1 is provided with a material injection channel 11, and the material injection channel 11 is communicated with the forming cavity 3;
a plurality of first through holes are formed in the upper die 1, a first positioning column 12 is arranged in each first through hole, and the first positioning columns 12 can extend into the molding cavity 3 through the first through holes;
the lower die 2 is provided with a plurality of second through holes, each second through hole is internally provided with a second positioning column 21, and the second positioning columns 21 can extend into the molding cavity 3 through the second through holes.
The utility model provides a pair of forming die of fluoroplastics full cladding rubber O type circle, through set up on last mould and annotate the material passageway to adopt the processing of accurate injection machine injection mold, ensure the smooth seamless of product appearance, can make the quality of product also can obtain well control simultaneously, thereby solved current fluoroplastics cladding rubber O type circle and connect the splice fracture, the uncontrollable problem of product quality.
In one embodiment, as shown in fig. 3, the injection channel 11 includes a main channel 111, sub-channels 112 disposed on both sides of the main channel, and injection channels 113 disposed on the sub-channels 112.
In the embodiment, the material injection channel 113 is arranged to include a main channel, sub-channels arranged on two sides of the main channel, and the material injection channel 113 arranged on the sub-channels, so as to form a stepped graded material injection channel; the main runner and the sub-runners mainly control the stability of material flow, the material injection runner mainly controls the uniformity of the fluoroplastic coating, and the thickness and the stability of the fluoroplastic coating can be effectively controlled by lengthening or shortening the length of the material injection runner 113.
In one embodiment, the branched flow passage 112 includes a first branched flow passage 1121, a second branched flow passage 1122, and a third branched flow passage 1123;
one end of the first sub flow channel 1121 is communicated with one side of the main flow channel 111, the other end of the first sub flow channel 1121 is communicated with one end of the second sub flow channel 1122, the other end of the second sub flow channel 1122 is communicated with one end of the third sub flow channel 1123, and the other end of the third sub flow channel 1123 is communicated with the other side of the main flow channel 111;
the first sub-flow channel 1121 and the third sub-flow channel 1123 are disposed parallel to each other, and the second sub-flow channel 1122 is perpendicular to the first sub-flow channel 1121 and the third sub-flow channel 1123.
In this embodiment, the sub-runners are provided to include a first sub-runner, a second sub-runner, and a third sub-runner; meanwhile, one end of the first branch flow channel is communicated with one side of the main flow channel, the other end of the first branch flow channel is communicated with the second branch flow channel, the other end of the second branch flow channel is communicated with one end of the third branch flow channel, and the other end of the third branch flow channel is communicated with the other side of the main flow channel; the first sub-runner and the third sub-runner are arranged in parallel, and the second sub-runner is perpendicular to the first sub-runner and the third sub-runner, so that the injecting material flowing into the sub-runner through the main runner can flow into the molding cavity through the injecting channel quickly and uniformly.
In one embodiment, as shown in fig. 3, the main runner 111, the first sub-runner 1121, and the third sub-runner 1123 are all disposed in a direction extending parallel to the molding cavity 3; the second branch channel 1122 and the injection channel 113 are both arranged along a direction perpendicular to the extending direction of the molding cavity 3.
In the embodiment, the main runner, the first sub-runner and the third sub-runner are all arranged along the direction parallel to the extending direction of the molding cavity; simultaneously divide the runner with the notes material all along the direction setting that the perpendicular to becomes the die cavity and extend to it can flow into the mould along the direction that becomes the die cavity and extend to annotate the material and say entering notes material cavity fast through annotating the material.
In one embodiment, the cross-sectional shapes of the main flow channel 111, the sub-flow channels 112, and the injection channel 113 are all circular.
In this embodiment, the cross-sectional shapes of the main runner, the sub-runners and the material injection runner are all set to be circular, so that the resistance of the material injection in the flowing process of the material injection runner is reduced.
In one embodiment, the inner diameter of the primary channel 111 is not less than 2 times the inner diameter of the secondary channel 112.
In this embodiment, through setting the internal diameter of sprue to be not less than 2 times of subchannel internal diameter to guarantee to flow into the shaping chamber through annotating the material way fast through annotating the material of sprue inflow subchannel.
In one embodiment, the first positioning column and the second positioning column are both pins.
In one embodiment, the pin is provided with a concave structure on a side close to the forming cavity 3.
In this embodiment, through being provided with concave structure with the one side that is close to the shaping chamber on the pin to make the contact surface between pin and the rubber O type circle of waiting to process be concave contact surface, thereby can guarantee that the pin accurately leans on the rubber O type circle of waiting to process.
In one embodiment, 6 to 20 first through holes are formed in the upper die, and 6 to 20 second through holes are formed in the lower die.
It should be noted that, in this embodiment, the number of the first through holes on the upper die and the number of the second through holes on the lower die may be adjusted according to the length of the forming die, and the specific values of the first through holes on the upper die and the second through holes on the lower die are not limited in this embodiment, which is only an exemplary illustration.
In one embodiment, the molding cavity 3 is disposed at a central position of the upper mold and the lower mold, and the first positioning column and the second positioning column extend into the molding cavity 3 for the same length.
The working process of the forming die of the fluoroplastic fully-coated rubber O-shaped ring comprises the following steps:
in the embodiment of the disclosure, the rubber O-ring 4 is firstly placed in the molding cavity 3, the mold is closed, the first positioning column 12 and the second positioning column 21 are respectively placed at the positions shown in the figure 1, the positioning rubber O-ring 4 is positioned at the middle parts of the upper mold 1 and the lower mold 2, then, an external precision injection molding machine is connected with the inlet of the main runner 111, the fluoroplastic fluid further enters the main runner 111, the fluoroplastic fluid further stably flows into the sub-runners 112 and then rapidly enters the injection runner 113, then the fluoroplastic fluid flows into the molding cavity 3, after the fluoroplastic fluid is initially solidified for a certain time, the first positioning column 12 and the second positioning column 21 are withdrawn to the positions shown in the figure 2, the heat preservation and pressure maintaining are continuously carried out until the fluoroplastic molding, and then, the sealing performance and the aging resistance of the fluoroplastic fully-coated rubber O-shaped ring are detected through a universal tensile testing machine and an oven respectively, so that the application requirements are met.
This disclosed embodiment adopts accurate injection machine injection mold to process, ensures the smooth seamless of product appearance, and the quality of goods also can obtain fine control simultaneously, has solved current fluoroplastics cladding rubber O type circle joint splice and has easily cracked, the uncontrollable problem of product quality, and has improved the shaping efficiency.
Other embodiments provided by the present examples will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the embodiments following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the terms of the appended claims.
Claims (10)
1. The forming die for the fluoroplastic fully-coated rubber O-shaped ring is characterized by comprising an upper die, a lower die and a forming cavity positioned between the upper die and the lower die;
the upper die is provided with a material injection channel, and the material injection channel is communicated with the forming cavity;
the upper die is provided with a plurality of first through holes, each first through hole is internally provided with a first positioning column, and the first positioning column can extend into the forming cavity through the first through hole;
the lower die is provided with a plurality of second through holes, each second through hole is internally provided with a second positioning column, and the second positioning columns can extend into the forming cavity through the second through holes.
2. A forming die for a fluoroplastic full-covered rubber O-ring according to claim 1, wherein the injection channel comprises a main channel, branch channels arranged on two sides of the main channel, and injection channels arranged on the branch channels.
3. A mold for molding an O-ring of a fluoroplastic covered rubber according to claim 2, wherein the branched flow paths include a first branched flow path, a second branched flow path, and a third branched flow path;
one end of the first branch flow channel is communicated with one side of the main flow channel, the other end of the first branch flow channel is communicated with one end of the second branch flow channel, the other end of the second branch flow channel is communicated with one end of the third branch flow channel, and the other end of the third branch flow channel is communicated with the other side of the main flow channel;
the first sub-runner and the third sub-runner are arranged in parallel, and the second sub-runner is perpendicular to the first sub-runner and the third sub-runner.
4. A mold for molding an O-ring of a fluoroplastic covered with rubber according to claim 3, wherein the main flow passage, the first branch flow passage and the third branch flow passage are all disposed in a direction parallel to the direction in which the molding chamber extends; the second sub-runner and the material injection runner are both arranged along the direction perpendicular to the extending direction of the forming cavity.
5. A mould for forming O-shaped ring covered by fluoroplastic according to any one of claims 2 to 4 wherein the cross-sectional shapes of the main runner, the branch runners and the injection runner are circular.
6. A mould for forming an O-shaped ring covered by fluoroplastic according to claim 5, wherein the inner diameter of the main runner is not less than 2 times the inner diameter of the branch runners.
7. A forming die for a fluoroplastic all-coated rubber O-ring according to any one of claims 1 to 4, wherein the first positioning column and the second positioning column are both pins.
8. A forming die for a fluoroplastic full-coated rubber O-ring according to claim 7, wherein a concave structure is arranged on one side of the pin close to the forming cavity.
9. A mould for forming O-shaped ring covered by fluoroplastic according to any one of claims 1 to 4 wherein 6 to 20 of said first through holes are provided in said upper mould and 6 to 20 of said second through holes are provided in said lower mould.
10. A mould for forming O-shaped ring covered by fluoroplastic according to any one of claims 1 to 4 wherein the forming cavity is centrally located on the upper and lower dies, and the first and second positioning posts extend the same length within the forming cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120341383.4U CN215359600U (en) | 2021-02-04 | 2021-02-04 | Forming die of fluoroplastic full-coated rubber O-shaped ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120341383.4U CN215359600U (en) | 2021-02-04 | 2021-02-04 | Forming die of fluoroplastic full-coated rubber O-shaped ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215359600U true CN215359600U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120341383.4U Active CN215359600U (en) | 2021-02-04 | 2021-02-04 | Forming die of fluoroplastic full-coated rubber O-shaped ring |
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| Country | Link |
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| CN (1) | CN215359600U (en) |
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2021
- 2021-02-04 CN CN202120341383.4U patent/CN215359600U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.61 Xiyan Road, Yanta District, Xi'an City, Shaanxi Province, 710054 Patentee after: Shaanxi Chemical Research Institute Co.,Ltd. Address before: No.61 Xiyan Road, Yanta District, Xi'an City, Shaanxi Province, 710054 Patentee before: SHAANXI RESEARCH DESIGN INSTITUTE OF PETROLEUM CHEMICAL INDUSTRY |
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| CP01 | Change in the name or title of a patent holder |