CN210362268U - Rubber injection mold structure - Google Patents
Rubber injection mold structure Download PDFInfo
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- CN210362268U CN210362268U CN201921270517.7U CN201921270517U CN210362268U CN 210362268 U CN210362268 U CN 210362268U CN 201921270517 U CN201921270517 U CN 201921270517U CN 210362268 U CN210362268 U CN 210362268U
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Abstract
The utility model provides a rubber injection mold structure, relates to rubber injection mold technical field, including cope match-plate pattern and lower bolster, be provided with between cope match-plate pattern and the lower bolster and pour the die cavity, be provided with into jiao kou on the cope match-plate pattern, be provided with the runner between the lower extreme that advances jiao kou and the side of pouring the die cavity, the runner is located the die joint face department of lower bolster and cope match-plate pattern, bottom undercut at the runner is provided with the inverse hanging chamber, the inverse hanging chamber is located into jiao kou under, the profile of the last port in inverse hanging chamber is less than the profile of its bottom. This novel to advance jiao kou setting at the side of product die cavity and with runner intercommunication product die cavity, set up the overhead hook chamber at the lower extreme that advances jiao kou, make and advance intraoral surplus glue of jiao kou and the integrative solidification of the rubber body of overhead hook intracavity for advance intraoral surplus glue of jiao kou when the die sinking and fixed on the lower bolster by the rubber body of overhead hook intracavity, stop that the surplus glue of advancing jiao kou is torn because of the uncertain product that produces in retention position, improves the product percent of pass.
Description
Technical Field
The utility model relates to a rubber injection mold technical field, concretely relates to rubber injection mold structure.
Background
The rubber product is prepared by heating and vulcanizing rubber compound prepared by mixing rubber raw materials with an internal mixer at high temperature. The rubber products have wide application, and are commonly used for manufacturing tires, sealing fluid, air, sundries, articles for daily use and the like. The early rubber product is manufactured by compression molding through a rubber flat vulcanizing machine, and after the product is molded, the product is subjected to flash treatment to treat the surface of the product smoothly without burrs; the flat vulcanization is to put the rubber blank which is processed in advance into a mold cavity and then to close and pressurize for vulcanization, the appearance and the size of the vulcanized product have great relations with the placement mode of the rubber blank and the flatness of equipment, and the produced product has relatively poor stability, so the injection vulcanization molding becomes the first choice of rubber enterprises.
Firstly, the rubber is cut into long strips for injection vulcanization, the rubber is automatically fed through a feeding system, the rubber material pretreatment is not needed according to a cavity, and the early preparation process and the vulcanization operation process are shortened; secondly, injection vulcanization is carried out after mold locking, so that the uniformity of distribution of the rubber material is improved, and the risk of unstable product size caused by improper placement of rubber blanks is avoided; finally, the actual vulcanization time can be greatly reduced because the rubber is preheated in advance in the barrel. But injection vulcanization has the disadvantages that: the glue inlet of the vulcanizing machine is directly connected with a product cavity, and the connecting position of the vulcanized product and the glue inlet is easy to tear, so that the product is scrapped; the glue inlet of the product is very easy to be adhered to the die, and the glue is adhered to the upper template and the lower template with uncertainty, so that the glue inlet of the same product is easy to tear and pull a bad product when the upper template and the lower template are opened, after the product is taken out in the later period, the glue inlet needs to be trimmed by a cutter manually, the production efficiency is reduced, and the rejection rate is high.
Disclosure of Invention
In order to solve the problem of the prior art, the utility model provides a rubber injection mold structure, will advance gluey mouthful setting at the side of product die cavity and with runner intercommunication product die cavity, lower extreme entering gluey mouthful sets up the overhead-hung chamber, make and advance the interior surplus of gluey mouthful rubber body an organic whole with the overhead-hung intracavity and solidify, it fixes on the lower bolster to advance the rubber body of intraoral surplus glue of gluing by the overhead-hung intracavity during the die sinking, stop that the surplus of advancing the department of glue tears because of the uncertain product that produces in retention position, improve the product percent of pass.
The purpose of the utility model can be realized by the following technical proposal: a rubber injection mold structure comprises an upper mold plate and a lower mold plate, wherein a pouring cavity is arranged between the upper mold plate and the lower mold plate, a rubber inlet is formed in the upper mold plate, a flow channel is arranged between the lower end of the rubber inlet and the side edge of the pouring cavity, the flow channel is located on the joint surface of the lower mold plate and the upper mold plate, an inverted hanging cavity is formed in the bottom of the flow channel in a downward concave mode, the inverted hanging cavity is located right below the rubber inlet, and the outline of an upper port of the inverted hanging cavity is smaller than the outline of the bottom of the inverted hanging cavity.
Preferably, the section of the inverted cavity in the direction vertical to the plate surface of the upper template is trapezoidal.
Preferably, the trapezoid is an isosceles trapezoid.
Preferably, the connection part of the runner and the pouring cavity is an expansion cavity, and the width of the expansion cavity gradually increases along the direction of the runner towards the pouring cavity. The arrangement of the expanding cavity enables rubber to flow into the pouring cavity more smoothly, and meanwhile, after the product is demoulded, the surface of the product cannot be torn when the residual rubber of the rubber inlet is torn off.
Preferably, the cavity expanding cavity is located on the upper template and forms an outward expanding included angle with the cavity surface on the lower template, and the outward expanding angle faces the pouring cavity.
Preferably, the runner includes a wide channel and a narrow channel, the wide channel is one end provided with the inverted cavity, the narrow channel is one end communicated with the pouring cavity, and the wide channel is in transitional connection with the narrow channel. The glue inlet and the glue in the inverted hanging cavity are connected by the cooled residual glue at the wide channel, and the residual glue is conveniently torn off together.
The utility model discloses an application principle: after the upper template and the lower template are arranged, injecting sizing material from a glue inlet, wherein the sizing material flows to a pouring cavity along a runner, after the injection is finished and vulcanization cooling is finished, opening the upper template, integrally forming the residual glue at the glue inlet, the residual glue in the runner and the residual glue in the inverted hanging cavity, and due to the trapezoidal section structure of the inverted hanging cavity, the residual glue in the inverted hanging cavity is stuck and remained on the lower template in the process of removing the upper template, so that the residual glue in the glue inlet is pulled out of the glue inlet of the upper template and also remained on the lower template; say that the product takes off, along expand die cavity department with whole surplus glue tear can, need not to use the cutter to cut off.
The utility model discloses the combined effect who brings includes: the utility model has the advantages of simple and reasonable structure, convenient to use, every advances gluey intraoral surplus glue and all stays on the lower bolster of mould when the setting up of inverse hanging chamber makes the die sinking remove the product, is convenient for take out the product and clear up the unnecessary limit of gluing of mould, improves the qualification rate of product, sets up at the runner and the junction of pouring the die cavity and expands the die cavity, tears the surplus glue along expanding the die cavity when making things convenient for later stage product to maintain, improves the production efficiency of product in proper order.
Drawings
Fig. 1 is a schematic top view of a rubber injection mold structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of the structure a-a in fig. 1.
Fig. 3 is a schematic diagram of the structure at B in fig. 2.
Fig. 4 is a schematic diagram of the structure at C in fig. 3.
Wherein like parts are designated by like reference numerals throughout the several views; the figures are not drawn to scale.
Detailed Description
The invention is further described with reference to the following figures and examples.
Examples
A rubber injection mold structure comprises an upper mold plate 1 and a lower mold plate 2, a pouring cavity 3 is arranged between the upper mold plate 1 and the lower mold plate 2, a glue inlet 4 is arranged on the upper mold plate 1, a runner 5 is arranged between the lower end of the glue inlet 4 and the side edge of the pouring cavity 3, the runner 5 is positioned on a joint surface 6 of the lower mold plate 2 and the upper mold plate 1, an inverted hanging cavity 7 is arranged at the bottom of the runner 5 in a downward concave mode, the inverted hanging cavity 7 is positioned under the glue inlet 4, the outline of the upper port of the inverted hanging cavity 7 is smaller than the outline of the bottom of the inverted hanging cavity 7, in the embodiment, the cross section of the inverted hanging cavity 7 in the direction perpendicular to the plate surface of the upper mold plate 1 is trapezoidal, and more preferably, the trapezoid is isosceles trapezoid.
The connecting part of the runner 5 and the pouring cavity 3 is an expanding cavity 8, and the width of the expanding cavity 8 gradually increases along the direction of the runner 5 towards the pouring cavity 3; in this embodiment, the cavity expanding cavity 8 is located on the upper template 1 and the cavity surface on the lower template 2, and the cavity surface is an outward expanding included angle, and the outward expanding surface faces the pouring cavity 3. The arrangement of the expanding cavity 8 enables rubber to flow into the pouring cavity 3 more smoothly, and meanwhile, after the product is demoulded, the surface of the product cannot be torn when the residual rubber of the rubber inlet 4 is torn off.
The runner 5 comprises a wide channel 51 and a narrow channel 52, the wide channel 51 is one end provided with the inverted cavity 7, the narrow channel 52 is one end communicated with the pouring cavity 3, and the wide channel 51 is in transitional connection with the narrow channel 52. The glue inlet 4 and the glue in the inverted cavity 7 are connected by the cooled residual glue at the wide channel 51, and the residual glue is conveniently torn off together.
The utility model discloses use principle: after the upper template 1 and the lower template 2 are injected, sizing materials are injected from the glue inlet 4, the sizing materials flow to the pouring cavity 3 along the runner 5, after the injection is finished and vulcanization cooling is carried out, the upper template 1 is opened, the residual glue of the glue inlet 4, the residual glue in the runner 5 and the residual glue in the inverse hanging cavity 7 are integrally formed, and due to the trapezoidal structure of the section of the inverse hanging cavity 7, the residual glue in the inverse hanging cavity 7 is clamped and remained on the lower template 2 in the process of removing the upper template 1, so that the residual glue in the glue inlet 4 is pulled out of the glue inlet 4 of the upper template 1 and also remained on the lower template 2; say that the product takes off, along expand 8 departments of die cavity with whole surplus gluey tear can, need not to use the cutter to cut off.
The embodiment of the utility model provides a comprehensive effect brought includes: the utility model has the advantages of simple and reasonable structure, convenient to use, the setting up of inverse hanging chamber 7 makes every surplus glue that advances in the jiao kou 4 when the die sinking removes the product all stay on the lower bolster 2 of mould, is convenient for take out the product and clear up the unnecessary limit of gluing of mould, improves the qualification rate of product, sets up at runner 5 and the junction of pouring die cavity 3 and expands die cavity 8, tears the surplus glue along expanding die cavity 8 when making things convenient for later stage product to maintain, improves the production efficiency of product in proper order.
The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The present invention has been described above with reference to the preferred embodiments, but the scope of protection of the present invention is not limited thereto, and all technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict.
Claims (6)
1. A rubber injection mold structure is characterized by comprising an upper mold plate and a lower mold plate, wherein a pouring cavity is arranged between the upper mold plate and the lower mold plate, a rubber inlet is formed in the upper mold plate, a flow channel is arranged between the lower end of the rubber inlet and the side edge of the pouring cavity, the flow channel is located on the joint surface of the lower mold plate and the upper mold plate, an inverted hanging cavity is formed in the bottom of the flow channel in a downward concave mode, the inverted hanging cavity is located right below the rubber inlet, and the outline of an upper port of the inverted hanging cavity is smaller than the outline of the bottom of the inverted hanging cavity.
2. A rubber injection mold structure according to claim 1, wherein a cross section of said inverted cavity in a direction perpendicular to a plate surface of said upper mold plate is trapezoidal.
3. A rubber injection mold structure according to claim 2, characterized in that the trapezoid is an isosceles trapezoid.
4. The rubber injection mold structure of claim 1, wherein the junction of the runner and the casting cavity is an expanded cavity, and the expanded cavity has a width gradually increasing along the runner toward the casting cavity.
5. The rubber injection mold structure of claim 4, wherein the flaring cavity is located at an outwardly flaring included angle between the cavity surfaces on the upper and lower mold plates, and the flaring cavity faces towards the casting cavity.
6. The rubber injection mold structure of claim 5, wherein the runner comprises a wide channel and a narrow channel, the wide channel is one end provided with the inverted hanging cavity, the narrow channel is one end communicated with the pouring cavity, and the wide channel and the narrow channel are in transitional connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921270517.7U CN210362268U (en) | 2019-08-07 | 2019-08-07 | Rubber injection mold structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921270517.7U CN210362268U (en) | 2019-08-07 | 2019-08-07 | Rubber injection mold structure |
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| Publication Number | Publication Date |
|---|---|
| CN210362268U true CN210362268U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921270517.7U Active CN210362268U (en) | 2019-08-07 | 2019-08-07 | Rubber injection mold structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318824A (en) * | 2020-10-12 | 2021-02-05 | 东莞铧冠橡塑制品有限公司 | Production device and production method of rubber sleeve |
| CN114953350A (en) * | 2022-05-13 | 2022-08-30 | 扬州东杰精密模具有限公司 | Forming die for high-precision chip |
-
2019
- 2019-08-07 CN CN201921270517.7U patent/CN210362268U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318824A (en) * | 2020-10-12 | 2021-02-05 | 东莞铧冠橡塑制品有限公司 | Production device and production method of rubber sleeve |
| CN114953350A (en) * | 2022-05-13 | 2022-08-30 | 扬州东杰精密模具有限公司 | Forming die for high-precision chip |
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