CN211709900U - Elastic rubber roller injection mold - Google Patents
Elastic rubber roller injection mold Download PDFInfo
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- CN211709900U CN211709900U CN201922319234.3U CN201922319234U CN211709900U CN 211709900 U CN211709900 U CN 211709900U CN 201922319234 U CN201922319234 U CN 201922319234U CN 211709900 U CN211709900 U CN 211709900U
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- rubber roller
- groove
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- forming
- elastic rubber
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Abstract
The utility model discloses an elastic rubber roller injection mold, the utility model discloses a mould that elastic material made, be equipped with the shaping groove on this mould, be equipped with the shaping portion that can reduce the shaping groove space in the inner wall in this shaping groove, not only can satisfy the shaping requirement of normal rubber roller like this, and reduced the space of moulding plastics in shaping groove through shaping portion, and the injection molding in the shaping groove can be through extruding out shaping portion and take out when demolding, thereby can not influence the drawing of patterns of injection molding, shaping portion has reduced the clout that is used for later stage processing on the injection molding, thereby saved the material of usefulness of moulding plastics, and the cost is saved.
Description
Technical Field
The utility model relates to an injection mold, especially an elastic rubber roller injection mold.
Background
The rubber roller is a common component in the laser printer, and a layer of rubber is wrapped outside an iron core in the middle. Rubber adopts mould injection molding and iron core integrated into one piece, and conventional method adopts mould and lower mould closed injection molding, and processing has the shaping groove on mould and the lower mould, closes and is a circular die cavity, and the both ends of die cavity have the mold insert to seal and be used for fixed iron core, and this kind of method is that the small province material of process allowance, but moulds plastics main defect and lie in: because the whole cavity is closed and only the vent hole is used for exhausting air, when the liquid rubber for injection molding is injected, the air in the cavity is difficult to exhaust, especially difficult to completely exhaust, thereby causing defects of the products for injection molding and difficult demolding. The other method is to adopt open injection molding, an upper mold is not needed, only a plurality of molding grooves are processed on the lower mold, the cross section of each molding groove is in a U-shaped molding groove with the upper part and the lower part being round, two ends of each U-shaped molding groove are closed, an iron core is fixed in each U-shaped molding groove, and the cross section of the finally injected roller is in a U shape, so that the U-shaped rubber roller is machined to remove redundant excess materials after injection molding to be processed into the round roller. Therefore, a new mold is needed to save material.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides an elastic rubber roller injection mold.
The utility model provides a technical scheme that its technical problem adopted is:
an injection mold for an elastic rubber roller is characterized by comprising a mold made of an elastic material, wherein a forming groove is formed in the mold, a forming part capable of reducing the space of the forming groove is arranged in the inner wall of the forming groove, and an injection molding part in the forming groove can be taken out through extruding the forming part during demolding.
And the inner walls of the two sides of the forming groove are provided with forming parts.
The elastic material is PU for injection molding or silica gel for injection molding.
And two shaft supporting grooves are formed in the die, the two shaft supporting grooves are communicated with the corresponding ends of the forming grooves, and the end parts of the iron cores are embedded into the corresponding shaft supporting grooves.
The cross section profile of the forming groove is a U-shaped groove.
The molding part is provided with an arc surface which is a molding surface of the injection molding part.
The utility model has the advantages that: the utility model discloses a mould that elastic material made, be equipped with the shaping groove on this mould, be equipped with the shaping portion that can reduce the shaping groove space in the inner wall in this shaping groove, so not only can satisfy the shaping requirement of normal rubber roller, the space of moulding plastics in shaping groove has been reduced through shaping portion in addition, and the injection molding in the shaping groove can take out through crowded shaping portion of opening when demolding, thereby can not influence the drawing of patterns of injection molding, shaping portion has reduced the clout that is used for later stage process on the injection molding, thereby the material of usefulness of moulding plastics has been saved, and the cost is saved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention (the structure of the forming portion is triangular);
FIG. 3 is a schematic cross-sectional view of the present invention (the structure of the forming part is square);
FIG. 4 is a schematic cross-sectional view of a previous configuration of the invention;
fig. 5 is a schematic top view of the present invention.
Detailed Description
Referring to fig. 1 to 5, the utility model discloses an elastic rubber roller injection mold, including the mould 1 that elastic material made, be equipped with shaping groove 2 on this mould 1, shaping groove 2 can be a plurality of certainly, and parallel arrangement, a plurality of shaping of once moulding plastics like this efficiency of moulding plastics is higher, is equipped with the shaping portion 3 that can reduce shaping groove 2 shaping space in this shaping groove 2's the inner wall, all be equipped with shaping portion 3 on the both sides inner wall of shaping groove 2, so more economize material, and the injection molding in shaping groove 2 can take out through extruding shaping portion 3.
Elastic material is for moulding plastics with PU or moulding plastics with silica gel, and whole mould 1 adopts moreover to mould plastics and forms, and shaping portion 3 and shaping groove 2 and whole mould 1 are all integrated into one piece.
As shown in the figure, the cross-sectional profile of the forming groove 2 is a U-shaped groove, the forming part 3 is a strip-shaped body protruding from the inner walls of the two sides of the U-shaped groove, the forming part 3 has an arc surface, the arc surface is a forming surface of an injection molding piece, and the arc surface is connected with a semicircular groove surface at the bottom of the U-shaped groove to form a cylindrical surface with a gap, which is the most material-saving structure, but the forming surface can also be a surface with other shapes, such as a plane, an inclined plane, a wavy plane, etc., so the cross-sectional profile of the forming part 3 has various shapes, such as a triangle, a square, or an irregular shape, for example, when the forming part 3 is a triangle, the forming surface can be an inclined plane; the molding surface may be a plane surface, for example, when the shape of the molding portion 3 is a square.
As shown in the figure, be equipped with diaxon support groove 4 on the mould 1, axle support groove 4 is the semicircular groove, diaxon support groove 4 link up with the corresponding end in shaping groove 2, in the axle support groove 4 that the tip embedding of iron core corresponds, because this rubber roller is the band iron core, the iron core is the cylinder, and the rubber layer parcel is outside the iron core, therefore has designed diaxon support groove 4, and the card of iron core both ends is in axle support groove 4, and the iron core passes shaping groove 2, and the plastics that melt pour into shaping groove 2 parcel outside the iron core. When the finally molded rubber roller is taken out, the mold 1 is entirely elastic, so that the rubber roller can be taken out by squeezing the molded portion 3. Although the precision of the rubber roller is not equal to that of the rubber roller which is injected by the upper steel die 1, the injection molded part is processed by a grinding machine after being molded, so that the precision of the final product is not influenced.
The above detailed description of the elastic rubber roller injection mold 1 provided by the embodiment of the present invention is provided, and the specific examples are applied herein to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (6)
1. An injection mold for an elastic rubber roller is characterized by comprising a mold made of an elastic material, wherein a forming groove is formed in the mold, a forming part capable of reducing the space of the forming groove is arranged in the inner wall of the forming groove, and an injection molding part in the forming groove can be taken out through extruding the forming part during demolding.
2. The elastic rubber roller injection mold according to claim 1, characterized in that: and the inner walls of the two sides of the forming groove are provided with forming parts.
3. The elastic rubber roller injection mold according to claim 1, characterized in that: the elastic material is PU for injection molding or silica gel for injection molding.
4. The elastic rubber roller injection mold according to claim 1, characterized in that: and two shaft supporting grooves are formed in the die, the two shaft supporting grooves are communicated with the corresponding ends of the forming grooves, and the end parts of the iron cores are embedded into the corresponding shaft supporting grooves.
5. The elastic rubber roller injection mold according to claim 1, characterized in that: the cross section profile of the forming groove is a U-shaped groove.
6. The elastic rubber roller injection mold according to claim 1, characterized in that: the molding part is provided with an arc surface which is a molding surface of the injection molding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922319234.3U CN211709900U (en) | 2019-12-19 | 2019-12-19 | Elastic rubber roller injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922319234.3U CN211709900U (en) | 2019-12-19 | 2019-12-19 | Elastic rubber roller injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211709900U true CN211709900U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922319234.3U Active CN211709900U (en) | 2019-12-19 | 2019-12-19 | Elastic rubber roller injection mold |
Country Status (1)
| Country | Link |
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| CN (1) | CN211709900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178973A (en) * | 2022-07-19 | 2022-10-14 | 深圳市华盛电气技术有限公司 | CT medical slip ring casting process |
-
2019
- 2019-12-19 CN CN201922319234.3U patent/CN211709900U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178973A (en) * | 2022-07-19 | 2022-10-14 | 深圳市华盛电气技术有限公司 | CT medical slip ring casting process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An injection mold for elastic rubber roller Effective date of registration: 20211210 Granted publication date: 20201020 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: ZHONGSHAN CHONGTIAN HARDWARE PRODUCTS CO.,LTD. Registration number: Y2021980014722 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20201020 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: ZHONGSHAN CHONGTIAN HARDWARE PRODUCTS CO.,LTD. Registration number: Y2021980014722 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |