CN220593758U - Special-shaped fluorine-coated rubber ring forming die - Google Patents
Special-shaped fluorine-coated rubber ring forming die Download PDFInfo
- Publication number
- CN220593758U CN220593758U CN202322168762.XU CN202322168762U CN220593758U CN 220593758 U CN220593758 U CN 220593758U CN 202322168762 U CN202322168762 U CN 202322168762U CN 220593758 U CN220593758 U CN 220593758U
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- Prior art keywords
- rubber ring
- special
- die
- shaped
- positioning
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 26
- 239000011737 fluorine Substances 0.000 title claims abstract description 26
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims description 3
- 206010066054 Dysmorphism Diseases 0.000 claims 1
- 210000002489 tectorial membrane Anatomy 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a special-shaped fluorine-coated rubber ring forming die which comprises an upper die and a lower die, wherein the upper die and the lower die are connected through a positioning pin; the upper die is provided with a conical bulge matched with the special-shaped rubber ring, the lower die is provided with a placing groove for positioning the special-shaped rubber ring, and the conical bulge and the placing groove enclose a die cavity matched with the special-shaped rubber ring when the upper die and the lower die are assembled. The die adopts an upper die separating structure and a lower die separating structure, so that the processing and the demoulding of parts are facilitated; the upper die corresponds to the upper end face and the inner side face of the special-shaped rubber ring, the lower die corresponds to the outer side face and the bottom face of the special-shaped rubber ring, the polytetrafluoroethylene film is placed in the positioning groove, rejection of film offset parts caused by inaccurate film positioning is avoided, the special-shaped rubber ring is positioned in the positioning groove during forming, the polytetrafluoroethylene film is covered on the upper side and positioned in the positioning groove, then the upper die is closed and placed in a press for high-temperature and high-pressure forming, the problem that the special-shaped fluorine-coated rubber ring is difficult to form is effectively solved, and the size and appearance quality of a product are guaranteed.
Description
Technical Field
The utility model relates to the technical field of forming dies, in particular to a forming die for a special-shaped fluorine-coated rubber ring.
Background
The fluorine-coated rubber ring is coated on the working surface of the pure rubber O-shaped sealing ring by using a polytetrafluoroethylene film, so that the high elasticity of a rubber material and the self-lubricity, low friction coefficient, bottom high temperature resistance and medium resistance of polytetrafluoroethylene are fully exerted, the friction coefficient of the rubber ring is reduced, the service life is prolonged, and the fluorine-coated rubber ring is widely applied to movable sealing. As shown in fig. 5, one side of the fluorine-coated rubber ring is matched with a spherical structural part, and the other side of the fluorine-coated rubber ring is assembled with the shell, so that the sealing effect is achieved, the spherical structure is not hindered from rotating, and the fluorine-coated rubber ring is better applied to products, so that the fluorine-coated rubber ring is designed into a special-shaped structure, the existing fluorine-coated rubber ring is of a circular section sealing structure, the forming difficulty is increased by the fluorine-coated rubber ring of the special-shaped structure, the forming vulcanizing mold is designed, and the processing and quality of the products are guaranteed.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides the special-shaped fluorine-coated rubber ring forming die, so that the problem that the special-shaped fluorine-coated rubber ring is difficult to form is effectively solved, the size and the appearance quality of a product are ensured, and the problems in the background technology can be effectively solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the special-shaped fluorine-coated rubber ring forming die comprises an upper die and a lower die, wherein the upper die and the lower die are connected through a locating pin; the upper die is provided with a conical bulge matched with the special-shaped rubber ring, the lower die is provided with a placing groove for positioning the special-shaped rubber ring, and the conical bulge and the placing groove enclose a die cavity matched with the special-shaped rubber ring when the upper die and the lower die are assembled.
Preferably, the upper die and the lower die are respectively provided with a positioning pin hole matched with the positioning pins, and the positioning pins are at least provided with two positioning pins, one positioning pin is a large positioning pin, and the other positioning pin is a small positioning pin.
Preferably, the conical protrusion is provided with a convex arc surface, the placement groove is provided with a vertical annular surface and a bottom surface, and the bottom surface is provided with a plane part and an inclined surface part.
Preferably, the lower die is also provided with a positioning groove for placing the polytetrafluoroethylene film; the upper die is provided with a pressing block matched with the positioning groove.
Preferably, the pressing block and the conical bulge are coaxially arranged, and the pressing block and the conical bulge are provided with arc transition surfaces matched with the special-shaped rubber ring.
Preferably, a gap is reserved between the upper die and the lower die, and the gap height is 0.1mm.
Compared with the prior art, the utility model has the beneficial effects that: the upper and lower die separating structures are adopted for the die, so that the processing and the demoulding of the parts are facilitated; the upper die corresponds to the upper end face and the inner side face of the special-shaped rubber ring, the lower die corresponds to the outer side face and the bottom face of the special-shaped rubber ring, the polytetrafluoroethylene film is placed in the positioning groove, rejection of film offset parts caused by inaccurate film positioning is avoided, the special-shaped rubber ring is positioned in the positioning groove during forming, the polytetrafluoroethylene film is covered on the upper side and positioned in the positioning groove, then the upper die is closed and placed in a press for high-temperature and high-pressure forming, the problem that the special-shaped fluorine-coated rubber ring is difficult to form is effectively solved, and the size and appearance quality of a product are guaranteed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view of a partial structure of the present utility model;
FIG. 3 is a schematic view of the upper die structure of the present utility model;
FIG. 4 is a schematic view of the lower die structure of the present utility model;
fig. 5 is a schematic view of a shaped rubber ring.
In the figure: 1 upper die, 1.1 conical bulge, 1.2 pressing block, 2 lower die, 2.1 placing groove, 2.2 positioning groove and 3 positioning pin.
Detailed Description
The present utility model will be explained in detail by the following examples, and the purpose of the present utility model is to protect all technical improvements within the scope of the present utility model, and in the description of the present utility model, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., only correspond to the drawings of the present application, and in order to facilitate description of the present utility model, it is not necessary to indicate or imply that the apparatus or element referred to has a specific orientation.
Referring to fig. 1-5, the present utility model provides a technical solution: a special-shaped fluorine-coated rubber ring forming die comprises an upper die 1 and a lower die 2, wherein the upper die 1 and the lower die 2 are connected through a locating pin 3; the upper die 1 is provided with a conical bulge 1.1 matched with the special-shaped rubber ring, the lower die 2 is provided with a placing groove 2.1 used for positioning the special-shaped rubber ring, and the conical bulge 1.1 and the placing groove 2.1 enclose a die cavity matched with the special-shaped rubber ring when the upper die 1 and the lower die 2 are closed;
it can be understood that the die structure adopts an upper die separating structure and a lower die separating structure, which is convenient for processing and demolding of parts, and the die structure of the special-shaped fluorine-coated rubber ring is originally designed, so that the problem of difficult molding of the special-shaped fluorine-coated rubber ring is solved; the upper die 1 corresponds to the upper end face and the inner side face of the special-shaped rubber ring, and the lower die 2 corresponds to the outer side face and the bottom face of the special-shaped rubber ring;
further, the upper die 1 and the lower die 2 are respectively provided with a positioning pin hole matched with the positioning pin 3, and the positioning pin 3 is provided with at least two positioning pins, one is a large positioning pin, and the other is a small positioning pin; the positioning pin 3 is designed into a large positioning pin and a small positioning pin, so that the offset of parts caused by the matching difference of the positioning pin hole and the positioning pin 3 is avoided;
furthermore, the conical bulge 1.1 is provided with an outwards convex arc surface, and the conical bulge 1.1 is a convex arc surface because the inner side surface of the special-shaped rubber ring is matched with the spherical structural part, so that the molded product is more attached to the spherical structural part; the placing groove 2.1 is provided with a vertical annular surface and a bottom surface, the bottom surface is a plane part and an inclined surface part, and the plane part and the inclined surface part are designed because the part needs to be attached and sealed with the shell;
furthermore, the lower die 2 is also provided with a positioning groove 2.2 for placing a polytetrafluoroethylene film, so that the film offset part is prevented from being scrapped due to inaccurate film positioning; the upper die 1 is provided with a pressing block 1.2 which is matched with the positioning groove 2.2 and is used for pressing the film;
further, the pressing block 1.2 and the conical bulge 1.1 are coaxially arranged, and the pressing block 1.2 and the conical bulge 1.1 are provided with arc transition surfaces matched with the special-shaped rubber ring and are more attached to the special-shaped rubber ring;
in addition, a gap is reserved between the upper die 1 and the lower die 2, the gap height is 0.1mm, a thickness gap is reserved for the polytetrafluoroethylene film, and the problem of film whitening is avoided.
The utility model has not been described in detail in the prior art, and it is apparent to those skilled in the art that the utility model is not limited to the details of the above-described exemplary embodiments, but that the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and range of equivalency are intended to be embraced therein.
Claims (6)
1. The utility model provides a dysmorphism tectorial membrane fluorine rubber ring forming die, includes mould (1) and lower mould (2), its characterized in that: the upper die (1) and the lower die (2) are connected through a locating pin (3); the upper die (1) is provided with a conical bulge (1.1) matched with the special-shaped rubber ring, the lower die (2) is provided with a placing groove (2.1) for positioning the special-shaped rubber ring, and the conical bulge (1.1) and the placing groove (2.1) enclose a die cavity matched with the special-shaped rubber ring when the upper die (1) and the lower die (2) are assembled.
2. The special-shaped fluorine-coated rubber ring forming die as claimed in claim 1, wherein: the upper die (1) and the lower die (2) are respectively provided with a positioning pin hole matched with the positioning pins (3), the positioning pins (3) are at least provided with two positioning pins, one positioning pin is a large positioning pin, and the other positioning pin is a small positioning pin.
3. The special-shaped fluorine-coated rubber ring forming die as claimed in claim 1, wherein: the conical bulge (1.1) is provided with an outwards convex arc-shaped surface, the placing groove (2.1) is provided with a vertical annular surface and a bottom surface, and the bottom surface is a plane part and an inclined surface part.
4. The special-shaped fluorine-coated rubber ring forming die as claimed in claim 1, wherein: the lower die (2) is also provided with a positioning groove (2.2) for placing a polytetrafluoroethylene film; the upper die (1) is provided with a pressing block (1.2) which is matched with the positioning groove (2.2).
5. The special-shaped fluorine-coated rubber ring forming die as claimed in claim 4, wherein: the pressing block (1.2) and the conical bulge (1.1) are coaxially arranged, and the pressing block (1.2) and the conical bulge (1.1) are provided with arc transition surfaces matched with the special-shaped rubber ring.
6. The special-shaped fluorine-coated rubber ring forming die as claimed in claim 1, wherein: a gap is reserved between the upper die (1) and the lower die (2), and the gap height is 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322168762.XU CN220593758U (en) | 2023-08-11 | 2023-08-11 | Special-shaped fluorine-coated rubber ring forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322168762.XU CN220593758U (en) | 2023-08-11 | 2023-08-11 | Special-shaped fluorine-coated rubber ring forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220593758U true CN220593758U (en) | 2024-03-15 |
Family
ID=90177552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322168762.XU Active CN220593758U (en) | 2023-08-11 | 2023-08-11 | Special-shaped fluorine-coated rubber ring forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220593758U (en) |
-
2023
- 2023-08-11 CN CN202322168762.XU patent/CN220593758U/en active Active
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