CN209775413U - Novel automatic tooth twisting device of injection mold - Google Patents
Novel automatic tooth twisting device of injection mold Download PDFInfo
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- CN209775413U CN209775413U CN201920304522.9U CN201920304522U CN209775413U CN 209775413 U CN209775413 U CN 209775413U CN 201920304522 U CN201920304522 U CN 201920304522U CN 209775413 U CN209775413 U CN 209775413U
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Abstract
The utility model relates to the technical field of molds, in particular to a novel automatic thread twisting device of an injection mold, compared with the prior art, the novel automatic thread twisting device of the injection mold utilizes mold opening and mold closing, a rack arranged on a front template drives a gear, the gear drives a connecting rod and a thread core to rotate, the thread core is screwed in and out along the thread shape, the thread core is screwed in along the thread shape during molding, the thread can be molded on the side surface of a molded product, after the molded product is produced, the thread core is firstly driven by the gear to be screwed out along the thread shape, then the thread core is separated from the product by the elasticity of a spring, simultaneously, a slide block is also synchronously backwards moved, finally, the mechanical automatic thread withdrawing effect is achieved, the full-automatic production of products with threads on the side surface of the mold can be realized, the production efficiency is greatly improved, and the structure is safer, high quality and yield.
Description
Technical Field
The invention relates to the technical field of molds, in particular to a novel automatic tooth twisting device for an injection mold.
Background
In the process of forming an injection mold product, for all products with threads on the upper side surface, a thread core is placed in the forming process to form the threads, the thread core of the mold is placed in a movable mold cavity manually in the prior art, after the product is subjected to injection molding, the product and the thread core are manually taken out, and then the thread core is screwed out of the product in a manual thread twisting mode. In this way, the following disadvantages exist: 1. the screw tooth core is easy to put at an accurate position, so that a mould is damaged, and the operation safety has hidden danger; 2. more than two screw tooth cores are needed to be replaced for alternative use and molding, only manual semi-automatic production can be used, and the molding machine has the characteristics of long molding period, high production cost and the like; 3. the thread core is screwed out of the product by manually operating the thread twisting, so that the time and labor are wasted, the product is easily damaged, and the quality reject ratio is high.
Disclosure of Invention
In order to solve the defects and problems existing in the injection molding of the screw thread product in the prior art, a novel automatic thread twisting device of an injection mold is provided.
The technical scheme adopted by the invention for solving the technical problem is as follows: the novel automatic tooth twisting device of the injection mold comprises a template, wherein one end of the template presses a front template, the upper end of the template is provided with a slider seat, the rear end of the slider seat props against a slider, the template is matched with a movable mold cavity, a molded product is arranged in the movable mold cavity, and the slider seat is matched with the movable mold cavity through a slider insert; a connecting rod is embedded in the front template, a gear is fixed in the front template by the connecting rod, a rack is matched on the gear, the rack is also embedded in the front template, the rack and the connecting rod are in a vertical relation, a spring is fixed at the front end of the connecting rod, and the spring is propped against the front end face of the front template; the rear end of the connecting rod is fixedly connected with a rotating shaft, the tail end of the rotating shaft is provided with a screw tooth core, and the screw tooth core is matched with a molded product in the movable model cavity.
The front template is internally provided with a cavity, the gear is arranged in the cavity and meshed with the rack, and the rack drives the connecting rod to rotate by driving the gear.
The gear is matched with the front template through a bearing.
The front end of the connecting rod is a pressing plate, and one end of the spring is pressed by the pressing plate.
The front end of the front template is provided with an inner concave surface, one end of the spring is pressed on the pressing plate, and the other end of the spring is propped against the inner concave surface of the front template.
The rotating shaft is matched with the sliding block seat and the sliding block insert through bearings.
The invention has the beneficial effects that: compared with the prior art, the novel automatic thread twisting device for the injection mold has the advantages that through mold opening and mold closing, the rack arranged on the front mold plate drives the gear, the gear drives the connecting rod and the thread core to rotate, so that the thread core is screwed in and out along the thread shape, the thread core is screwed in along the thread shape during molding, so that threads can be molded on the upper side surface of a molded product, after the product is molded, the gear drives the thread core to screw out along the thread shape, then the thread core is separated from the product by means of the elasticity of the spring, and meanwhile, the sliding block also synchronously retreats, so that the mechanical automatic thread retreating effect is finally achieved, the full-automatic production of the product with the threads on the side surface of the mold can be realized, the production efficiency is greatly improved, the structure is safer, the quality yield is high, and the like.
Drawings
The novel automatic tooth twisting device for the injection mold is further described with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic structural view of the novel automatic tooth twisting device for the injection mold of the invention.
The specific implementation mode is as follows:
As shown in fig. 1, the novel automatic tooth twisting device for the injection mold comprises a mold plate 1, wherein one end of the mold plate 1 presses a front mold plate 2, the upper end of the mold plate 1 is provided with a slider seat 3, the rear end of the slider seat 3 props against a slider 4, the mold plate 1 is matched with a movable mold cavity 5, a molded product 6 is arranged in the movable mold cavity 5, and the slider seat 3 is matched with the movable mold cavity 5 through a slider insert 7.
As shown in fig. 1, a cavity 8 is formed in the front mold plate 2, a connecting rod 9 is embedded in the front mold plate 2, the connecting rod 9 penetrates through the cavity 8, a gear 10 is fixed in the front mold plate 2 by the connecting rod 9, the gear 10 is arranged in the cavity 8, and the gear 10 is matched with the front mold plate 2 through a bearing 0. A rack 11 is matched on a gear 10, the rack 11 is also embedded in the front template 2, the rack 11 is perpendicular to the connecting rod 9, the gear 10 is meshed with the rack 11, and the rack 11 drives the connecting rod 9 to rotate by driving the gear 10.
As shown in fig. 1, the front end of the front mold plate 2 is provided with an inner concave surface 12. The front end of the connecting rod 9 is a pressing plate 13, the pressing plate 13 presses a spring 14, one end of the spring 14 is pressed on the pressing plate 13, and the other end of the spring 14 is propped against the concave surface 12 of the front template 2.
As shown in fig. 1, a rotating shaft 15 is fixedly connected to the rear end of the connecting rod 9, a screw core 16 is arranged at the tail end of the rotating shaft 15, and the screw core 16 is matched with the molded product 6 in the movable mold cavity 5. The rotating shaft 15 is matched with the slider seat 3 and the slider insert 7 through a bearing 0.
As shown in figure 1, before molding, through mold closing, the rack 11 drives the gear 10, the gear 10 drives the connecting rod 9 and the screw tooth core 16 to rotate, so that the screw tooth core 16 rotates along the shape of the screw tooth in the mold cavity 5, and then injection molding is carried out, so that the upper side of the molded product 6 is provided with the screw tooth. After the injection molding is finished, the mold is opened, the rack 11 drives the gear 10, the gear 10 drives the connecting rod 9 and the thread core 16 to rotate, the thread core 16 is screwed out of the molded product 6 along the shape of the thread, the thread core 16 is separated from the molded product 6 by the aid of the elasticity of the spring 14, meanwhile, the sliding block 4 is synchronously retreated, the mechanical automatic thread retreating effect is finally achieved, and the full-automatic production of the product with the thread on the side surface of the mold can be realized.
In summary, compared with the prior art, the novel automatic thread twisting device for the injection mold has the advantages that through mold opening and mold closing, the rack arranged on the front mold plate drives the gear, the gear drives the connecting rod and the thread core to rotate, so that the thread core is screwed in and out along the thread shape, the thread core is screwed in along the thread shape during molding, so that the thread can be molded on the upper side surface of a molded product, after the product is molded, the gear drives the thread core to be screwed out along the thread shape, the thread core is separated from the product by means of the elasticity of the spring, and meanwhile, the sliding block is synchronously retracted, so that the mechanical automatic thread retraction effect is finally achieved, the full-automatic production of the product with the threads on the side surface of the mold can be realized, the production efficiency is greatly improved, the structure is safer, the quality and the yield are high, and the like.
The present invention has been described in terms of embodiments thereof, which are illustrative and not restrictive, and it is to be understood that the scope of the invention is not limited thereto, and that variations and/or modifications may be made by those skilled in the art without departing from the scope of the invention as defined in the appended claims, and all such modifications and changes are intended to be included within the scope of the invention.
Claims (6)
1. Novel automatic hank tooth of injection mold device, its characterized in that: the die comprises a die plate, wherein one end of the die plate presses a front die plate, the upper end of the die plate is provided with a sliding block seat, the rear end of the sliding block seat props against a sliding block, the die plate is matched with a movable die cavity, a molded product is arranged in the movable die cavity, and the sliding block seat is matched with the movable die cavity through a sliding block insert; a connecting rod is embedded in the front template, a gear is fixed in the front template by the connecting rod, a rack is matched on the gear, the rack is also embedded in the front template, the rack and the connecting rod are in a vertical relation, a spring is fixed at the front end of the connecting rod, and the spring is propped against the front end face of the front template; the rear end of the connecting rod is fixedly connected with a rotating shaft, the tail end of the rotating shaft is provided with a screw tooth core, and the screw tooth core is matched with a molded product in the movable model cavity.
2. the novel automatic tooth twisting device of the injection mold according to claim 1, characterized in that: the front template is internally provided with a cavity, the gear is arranged in the cavity and meshed with the rack, and the rack drives the connecting rod to rotate by driving the gear.
3. The novel automatic tooth twisting device of the injection mold as claimed in claim 2, wherein: the gear is matched with the front template through a bearing.
4. The novel automatic tooth twisting device of the injection mold according to claim 1, characterized in that: the front end of the connecting rod is a pressing plate, and one end of the spring is pressed by the pressing plate.
5. The novel automatic tooth twisting device of the injection mold as claimed in claim 4, wherein: the front end of the front template is provided with an inner concave surface, one end of the spring is pressed on the pressing plate, and the other end of the spring is propped against the inner concave surface of the front template.
6. The novel automatic tooth twisting device of the injection mold according to claim 1, characterized in that: the rotating shaft is matched with the sliding block seat and the sliding block insert through bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920304522.9U CN209775413U (en) | 2019-03-11 | 2019-03-11 | Novel automatic tooth twisting device of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920304522.9U CN209775413U (en) | 2019-03-11 | 2019-03-11 | Novel automatic tooth twisting device of injection mold |
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| Publication Number | Publication Date |
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| CN209775413U true CN209775413U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920304522.9U Active CN209775413U (en) | 2019-03-11 | 2019-03-11 | Novel automatic tooth twisting device of injection mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719905A (en) * | 2019-03-11 | 2019-05-07 | 厦门市松竹精密科技有限公司 | A kind of injection mold twists tooth device automatically |
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2019
- 2019-03-11 CN CN201920304522.9U patent/CN209775413U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719905A (en) * | 2019-03-11 | 2019-05-07 | 厦门市松竹精密科技有限公司 | A kind of injection mold twists tooth device automatically |
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