CN216300036U

CN216300036U - Automatic die for side-feeding rubber head in snapping mode

Info

Publication number: CN216300036U
Application number: CN202123011199.2U
Authority: CN
Inventors: 张超
Original assignee: Shandong Youshi Mingzhuo Precision Mould Co ltd
Current assignee: Shandong Youshi Mingzhuo Precision Mould Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-04-15
Anticipated expiration: 2031-12-02

Abstract

The application provides a mold capable of automatically breaking a side glue feeding head, which solves the technical problem that a product and a pouring gate cannot be automatically broken when side glue is fed into the existing injection mold; the injection molding device comprises an upper die part and a lower die part, wherein an injection molding cavity and a runner communicated with the injection molding cavity are arranged between the upper die part and the lower die part; the runner comprises a main runner and a dummy runner branch, the main runner is horizontally arranged, the end part of the main runner is provided with a pouring gate, and the dummy runner branch is obliquely arranged above the main runner and close to the pouring gate; the sprue upper end is communicated with a hot nozzle structure arranged in the upper die part, and the sprue lower end is connected with the lower die part. But this application wide application in the technical field of moulding plastics.

Description

Automatic die for side-feeding rubber head in snapping mode

Technical Field

The application relates to an injection mold, more specifically say, relate to a mould that advances to glue stub bar is gone into to automatic breaking side.

Background

The injection molding is to inject hot molten plastic material into the cavity of a plastic molding die through an injection molding machine, and to obtain various injection molding products with different shapes through cooling molding. The side advances gluey mould simple structure, advances gluey steady, nevertheless because product and runner can't automatic disconnection, follow-up needs the manual work to go to prune, can't realize full automated production, increases labour cost, and the manual work is pruned the runner and is influenced by operator self greatly moreover, and product quality is wayward.

Disclosure of Invention

In order to solve the above problems, the technical scheme adopted by the application is as follows: the mould comprises an upper mould part and a lower mould part, wherein an injection mould cavity and a runner communicated with the injection mould cavity are arranged between the upper mould part and the lower mould part; the runner comprises a main runner and a dummy runner branch, the main runner is horizontally arranged, the end part of the main runner is provided with a pouring gate, and the dummy runner branch is obliquely arranged above the main runner and close to the pouring gate; the sprue upper end is communicated with a hot nozzle structure arranged in the upper die part, and the sprue lower end is connected with the lower die part.

Preferably, an insertion part inserted into the lower mold part is connected below the main runner, the insertion part has a structure with a small top and a large bottom, and the lower mold part is provided with a cavity corresponding to the lower mold part.

Preferably, a plurality of front mold ejector pins are arranged above the injection molding cavity, and a plurality of rear mold ejector pins are arranged below the injection molding cavity.

Preferably, the dummy runner branches are inclined toward the gate direction.

Preferably, the included angle between the dummy flow channel branch and the main flow channel is greater than or equal to 40 ° and less than or equal to 50 °.

Preferably, the upper die part comprises an upper fixing plate, a front die base plate, a front die plate and a front die core which are arranged up and down, and a front die thimble panel connected with a front die thimble is arranged in the front die base plate in a sliding manner.

Preferably, the lower die part comprises a rear die core, a rear die plate, a rear die backing plate and a lower fixing plate which are arranged up and down, and a rear die ejector pin panel connected with a rear die ejector pin is arranged in the rear die backing plate in a sliding mode.

Preferably, a front mold thimble bottom plate is connected above the front mold thimble panel, the upper end of the front mold thimble is located between the front mold thimble panel and the front mold thimble bottom plate, and a groove corresponding to the shape of the upper end of the front mold thimble is formed in the upper surface of the front mold thimble panel.

Preferably, a rear mold thimble base plate is connected below the rear mold thimble panel, the lower end of the rear mold thimble is located between the rear mold thimble panel and the rear mold thimble base plate, and a groove corresponding to the shape of the end of the rear mold thimble is formed in the lower surface of the rear mold thimble panel.

The side-feeding glue-feeding die has the beneficial effects that the structure is simple, the design is exquisite, the automatic breaking of a side-feeding glue-feeding die product and a pouring gate is realized, the manual operation is not needed, the labor cost is reduced, and the production efficiency is improved. The structure of the flow channel is set into a main flow channel and a dummy flow channel branch, the main flow channel is horizontally arranged, the end part of the main flow channel is provided with a pouring gate, and the dummy flow channel branch is obliquely arranged above the main flow channel and close to the pouring gate; the sprue upper end is communicated with a hot nozzle structure arranged in the upper die part, and the sprue lower end is connected with the lower die part. Specifically, an inserting part inserted into the lower mold part is connected below the main runner, the inserting part is of a structure with a small top and a large bottom, and the lower mold part is provided with a cavity corresponding to the lower mold part. Therefore, when the mold is opened, the runner does not move along with the upper mold part and is not separated from the lower mold part.

During injection molding, the rubber material enters the main runner through the hot nozzle structure and then enters the injection molding cavity from the pouring gate of the main runner. When the mold is opened, the upper mold part is separated from the lower mold part, meanwhile, the front mold ejector pin is ejected downwards, a product is separated from the upper mold part, and the runner is connected with the lower mold part and cannot move along with the upper mold part. The upper die part moving in the vertical direction pulls the dummy runner branch, the dummy runner branch drives the sprue part of the main runner to be separated from the upper die part after short-time deformation, and the sprue and a product are snapped while deformation is carried out, so that automatic separation is completed. And then, the rear mould ejector pin is ejected upwards, and the product is separated from the lower mould part.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic sectional view A-A of FIG. 2;

FIG. 4 is a schematic structural view of a flow channel;

fig. 5 is an enlarged schematic view of a portion a of fig. 3.

The symbols in the drawings illustrate that:

1. an upper die portion; 2. a lower die portion; 3. injection molding a cavity; 4. a main flow channel; 5. a false flow channel is branched; 6. a gate; 7. a hot nozzle structure; 8. an insertion portion; 9. a front mold thimble; 10. a rear mold thimble; 11. an upper fixing plate; 12. a front mold backing plate; 13. a front template; 14. a front mold core; 15. a front mold thimble panel; 16. a rear mold core; 17. a rear template; 18. a rear mold backing plate; 19. a lower fixing plate; 20. a rear mold thimble panel; 21. a front mold thimble bottom plate; 22. and a rear mould thimble bottom plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The mold for automatically snapping the side feeding rubber head provided by the embodiment of the application is now described.

Referring to fig. 1, 2, 3 and 5, a schematic perspective view of a mold for automatically snapping a side-feeding rubber head includes an upper mold portion 1 and a lower mold portion 2, wherein an injection mold cavity 3 and a flow passage communicating with the injection mold cavity 3 are formed between the upper mold portion 1 and the lower mold portion 2; the runner comprises a main runner 4 and a dummy runner branch 5, the main runner 4 is horizontally arranged, a pouring gate 6 is arranged at the end part of the main runner 4, and the dummy runner branch 5 is obliquely arranged above the main runner 4 and close to the pouring gate 6; the upper end of the main runner 4 is communicated with a hot nozzle structure 7 arranged in the upper die part 1, and the lower end of the main runner 4 is connected with the lower die part 2. In the injection molding process, the rubber enters the main runner 4 through the hot nozzle structure 7 and then enters the injection molding cavity 3 through the pouring gate 6 of the main runner 4.

When the mould is opened, the upper mould part 1 is separated from the lower mould part 2, and the runner is connected with the lower mould part 2 and cannot move along with the upper mould part 1. Because the dummy runner branch 5 is obliquely arranged, the upper die part 1 moving in the vertical direction pulls the dummy runner branch 5, the dummy runner branch 5 drives the sprue 6 part of the main runner 4 to be separated from the upper die part 1 after being temporarily deformed, and the sprue 6 of the main runner 4 is broken by pulling with a product while being deformed, so that the automatic separation is completed.

Specifically, please refer to fig. 3, which is a schematic sectional structure view of a-a of the mold for automatically snapping the side-feeding stub bar. Connection of runner to lower die part 2: an inserting part 8 inserted into the lower mold part 2 is connected to the lower part of the main flow passage 4, the inserting part 8 is of a structure with a small upper part and a large lower part, and the lower mold part 2 is provided with a cavity corresponding to the inserting part. Therefore, when the mold is opened, the runner does not move along with the upper mold part 1 and is not separated from the lower mold part 2.

Furthermore, in the present embodiment, a plurality of front mold ejector pins 9 are disposed above the injection mold cavity 3, and a plurality of rear mold ejector pins 10 are disposed below the injection mold cavity 3. When the mold is opened, the front mold ejector pin 9 is ejected downwards, the product is separated from the upper mold part 1, after the sprue 6 and the product are automatically broken, the rear mold ejector pin 10 is upwards, the product is separated from the lower mold part 2, and the automatic demolding is finished.

Referring to fig. 3, 4 and 5, in order to achieve a better effect of pulling the gate 6, the dummy runner branch 5 is inclined toward the gate 6. Furthermore, the included angle between the dummy runner branch 5 and the main runner 4 is more than or equal to 40 degrees and less than or equal to 50 degrees, so that the situation of breaking and the like caused by too long distance movement of the upper die part 1 can be avoided, and deformation enough for breaking the gate 6 and a product caused by the movement of the upper die part 1 can be generated.

Referring to fig. 4, in the present embodiment, in order to improve the production efficiency, the mold is provided with a plurality of injection cavities 3, the main runner 4 is provided with a plurality of end portions, and the dummy runner branches 5, and each end portion is provided with a gate 6.

Further, please refer to fig. 3, which is a schematic sectional view a-a of the mold for automatically snapping the side feeding rubber head. The upper die part 1 comprises an upper fixing plate 11, a front die backing plate 12, a front die plate 13 and a front die core 14 which are arranged up and down, and the hot nozzle structure 7 penetrates through the upper fixing plate 11, the front die backing plate 12, the front die plate 13 and the front die core 14. A front mold thimble panel 15 connected with the front mold thimble 9 is arranged in the front mold backing plate 12 in a sliding manner, and a push rod of the injection molding machine drives the front mold thimble panel 15 so as to drive the front mold thimble 9 to eject a product downwards.

Further, please refer to fig. 3, which is a schematic sectional view a-a of the mold for automatically snapping the side feeding rubber head. The lower die part 2 comprises a rear die core 16, a rear die plate 17, a rear die backing plate 18 and a lower fixing plate 19 which are arranged up and down, and a rear die ejector pin panel 20 connected with the rear die ejector pin 10 is arranged in the rear die backing plate 18 in a sliding mode. The push rod of the injection molding machine drives the rear mold thimble panel 20, thereby driving the rear mold thimble 10 to eject the product upwards.

Furthermore, in the present embodiment, in order to fix the front mold thimble 9, a front mold thimble base plate 21 is connected above the front mold thimble panel 15, the upper end of the front mold thimble 9 is located between the front mold thimble panel 15 and the front mold thimble base plate 21, and the upper surface of the front mold thimble panel 15 is provided with a groove corresponding to the shape of the upper end of the front mold thimble 9.

Furthermore, in the present embodiment, in order to fix the rear mold thimble 10, a rear mold thimble base plate 22 is connected below the rear mold thimble panel 20, the lower end of the rear mold thimble 10 is located between the rear mold thimble panel 20 and the rear mold thimble base plate 22, and a concave groove corresponding to the shape of the end of the rear mold thimble 10 is formed on the lower surface of the rear mold thimble panel 20.

The side-feeding glue-feeding die has a simple structure and an exquisite design, realizes automatic snapping of a side-feeding glue-feeding die product and the sprue 6, does not need manual operation, reduces labor cost and improves production efficiency. The structure of the runner is set as a main runner 4 and a dummy runner branch 5, the main runner 4 is horizontally arranged, the end part of the main runner is provided with a pouring gate 6, and the dummy runner branch 5 is obliquely arranged above the main runner 4 and close to the pouring gate 6; the upper end of the main runner 4 is communicated with a hot nozzle structure 7 arranged in the upper die part 1, and the lower end of the main runner 4 is connected with the lower die part 2. Specifically, an insertion portion 8 inserted into the lower mold portion 2 is connected below the main flow passage 4, the insertion portion 8 has a structure with a small top and a large bottom, and the lower mold portion 2 is provided with a cavity corresponding to the insertion portion. Therefore, when the mold is opened, the runner does not move along with the upper mold part 1 and is not separated from the lower mold part 2.

During injection molding, the rubber material enters the main runner 4 through the hot nozzle structure 7 and then enters the injection molding cavity 3 through the pouring gate 6 of the main runner 4. When the mold is opened, the upper mold part 1 is separated from the lower mold part 2, meanwhile, the front mold ejector pin 9 is ejected downwards, the product is separated from the upper mold part 1, and the flow channel is connected with the lower mold part 2 and cannot move along with the upper mold part 1. The upper die part 1 moving in the vertical direction pulls the dummy runner branch 5, the dummy runner branch 5 drives the sprue 6 part of the main runner 4 to be separated from the upper die part 1 after short-time deformation, and the sprue 6 of the main runner 4 is broken by pulling with a product while deformation, so that automatic separation is completed. Subsequently, the rear mold ejector pins 10 are ejected upward, and the product is released from the lower mold portion 2.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. A mould for automatically breaking a side-feeding rubber head comprises an upper mould part and a lower mould part, wherein an injection mould cavity and a runner communicated with the injection mould cavity are arranged between the upper mould part and the lower mould part; the method is characterized in that: the runner comprises a main runner and a dummy runner branch, the main runner is horizontally arranged, a pouring gate is arranged at the end part of the main runner, and the dummy runner branch is obliquely arranged above the main runner and close to the pouring gate; the upper end of the main runner is communicated with a hot nozzle structure arranged in the upper die part, and the lower end of the main runner is connected with the lower die part.

2. The mold for automatically snapping a side feed gate as in claim 1, wherein: the lower part of the main runner is connected with an inserting part inserted into the lower die part, the inserting part is of a structure with a small upper part and a large lower part, and the lower die part is provided with a cavity corresponding to the lower die part.

3. The mold for automatically snapping a side feed gate as in claim 1, wherein: a plurality of front mold ejector pins are arranged above the injection molding cavity, and a plurality of rear mold ejector pins are arranged below the injection molding cavity.

4. The die for automatically snapping a side feed stub bar according to claim 1, 2 or 3, wherein: the dummy runner branches are inclined toward the gate direction.

5. The mold for automatically snapping a side feed gate as in claim 4, wherein: the included angle between the dummy flow channel branch and the main flow channel is more than or equal to 40 degrees and less than or equal to 50 degrees.

6. The mold for automatically snapping a side feed gate as in claim 3, wherein: the upper die part comprises an upper fixing plate, a front die base plate, a front die plate and a front die core which are arranged up and down, and a front die ejector pin panel connected with the front die ejector pin is arranged in the front die base plate in a sliding mode.

7. The mold for automatically snapping a side feed gate as in claim 3, wherein: the lower die part comprises a rear die core, a rear die plate, a rear die base plate and a lower fixing plate which are arranged up and down, and a rear die ejector pin panel connected with the rear die ejector pins is arranged in the rear die base plate in a sliding mode.

8. The mold for automatically snapping a side feed gate as in claim 6, wherein: the upper part of the front mould thimble panel is connected with a front mould thimble bottom plate, the upper end of the front mould thimble is positioned between the front mould thimble panel and the front mould thimble bottom plate, and the upper surface of the front mould thimble panel is provided with a groove corresponding to the shape of the upper end part of the front mould thimble.

9. The mold for automatically snapping a side feed gate as in claim 7, wherein: and a rear mold thimble bottom plate is connected below the rear mold thimble panel, the lower end of the rear mold thimble is positioned between the rear mold thimble panel and the rear mold thimble bottom plate, and a groove corresponding to the shape of the end part of the rear mold thimble is arranged on the lower surface of the rear mold thimble panel.