Forming die for top cap of drawing pen

Abstract

The utility model discloses a drawing pen top cap forming mold which comprises a top plate, a first mold plate overlapped below the top plate, a second mold plate overlapped below the first mold plate, a third mold plate overlapped below the second mold plate, a first panel arranged between the second mold plate and the third mold plate, and a fourth mold plate overlapped below the third mold plate. A bottom plate is arranged below the fourth mold plate, the bottom plate is connected with the fourth mold plate through a mold foot, a movable space is formed between the fourth mold plate and the bottom plate through the mold foot, a first ejection assembly and a second ejection assembly are arranged in the movable space, and a positioning structure capable of supporting the first ejection assembly is arranged on the mold foot; the second ejection assembly is located between the first ejection assembly and the bottom plate. A mold cavity is formed in the first mold plate, a first mold cavity communicated with the mold cavity is formed in the second mold plate, a material opening communicated with the first mold cavity is formed in the first panel, a second mold cavity communicated with the material opening is formed in the third mold plate, and a first ejector pin hole communicated with the second mold cavity is formed in the fourth mold plate.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a molding mold for a painting pen cap. Background Art

[0002] The top cap of a painting pen made of plastic material is generally manufactured by injection molding, which has a complex structure and high manufacturing cost. Summary of the Invention

[0003] The purpose of the utility model is to provide a top hat forming mold which has a simple structure and is easy to assemble.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a top hat forming mold, comprising a top plate, a first template superimposed below the top plate, a second template superimposed below the first template, a third template superimposed below the second template, a first paneling provided between the second and third templates, a fourth template superimposed below the third template, a bottom plate provided below the fourth template, the bottom plate and the fourth template being connected by a mold foot, an activity space being formed between the fourth template and the bottom plate by the mold foot, a first ejector assembly and a second ejector assembly being provided in the activity space, a positioning structure capable of supporting the first ejector assembly being provided on the mold foot, and the second ejector assembly being located between the first ejector assembly and the bottom plate; a mold cavity being provided in the first template, a first mold cavity communicating with the mold cavity being provided in the second template, a material port communicating with the first mold cavity being provided in the first paneling, a second mold cavity communicating with the material port being provided in the third template, and a first ejector pin hole communicating with the second mold cavity being provided in the fourth template.

[0005] Compared with the prior art, the advantages of the present invention are as follows: by dividing the mold into components such as a top plate, a first template, a second template, a third template, a fourth template, and a bottom plate, and connecting them in an overlapping manner, the overall structure of the mold is simplified, the design complexity of the mold is reduced, and the mold manufacturing and assembly process is simplified. The precise matching design of the first mold cavity, the second mold cavity, and the mold cavity ensures the dimensional accuracy of the top cap during the molding process and improves molding efficiency. The connection design between the material port and the mold cavity ensures the uniform distribution of the material and reduces the defective product rate. The mold design is flexible and can accommodate the production of top caps of different specifications by adjusting the distance between the templates and the mold cavity size, thereby improving the flexibility and adaptability of the production line. The independent design of the first panel facilitates processing and subsequent maintenance, reducing the cost of replacing the entire mold due to local wear or damage. The positioning structure on the mold foot ensures stable support for the first ejector assembly, facilitating maintenance and replacement. The design of the first ejector pin hole ensures that the finished product can be effectively ejected when the mold is opened, preventing the top cap from sticking to the mold and improving the surface quality and dimensional consistency of the top cap. The first ejection assembly and the second ejection assembly arranged in the activity space, as well as the design of the positioning structure, simplify the operation process, reduce the adjustment time and material waste in the production process, and improve production efficiency.

[0006] In some embodiments of the present invention, the first panel is detachably connected to the bottom of the second template.

[0007] In some embodiments of the present invention, the second template is provided with a panel groove that matches the first panel.

[0008] In some embodiments of the present invention, the first ejection assembly is provided with a second ejection pin hole, and the second ejection pin hole is aligned with the first ejection pin hole.

[0009] In some embodiments of the present invention, the second ejection assembly is provided with a third ejection pin hole, and the third ejection pin hole is aligned with the second ejection pin hole.

[0010] In some embodiments of the present invention, the first ejection assembly is provided with a first guide post hole, the second ejection assembly is provided with a second guide post hole, and the first guide post hole is aligned with the second guide post hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This utility model is a cross-sectional view Figure 1 ;

[0013] Figure 3 This utility model is a cross-sectional view Figure 2 .

[0014] In the figure: 1. Top plate; 2. First template; 3. Second template; 4. Third template; 5. First panel; 6. Fourth template; 7. Bottom plate; 8. Mold foot; 9. Active space; 10. First ejector assembly; 11. Second ejector assembly; 12. Positioning structure; 13. Mold cavity; 14. First mold cavity; 15. Material inlet; 16. Second mold cavity; 17. First ejector pin hole; 19. Second ejector pin hole; 20. Third ejector pin hole; 21. First guide post hole; 22. Second guide post hole. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0016] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0017] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0018] The terms "including" and "having" and any variations thereof in the description and claims of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0019] like Figure 1-Figure 3As shown, a top hat forming mold includes a top plate 1, a first template 2 is superimposed below the top plate 1, a second template 3 is superimposed below the first template 2, a third template 4 is superimposed below the second template 3, a first panel 5 is provided between the second template 3 and the third template 4, a fourth template 6 is superimposed below the third template 4, a bottom plate 7 is provided below the fourth template 6, the bottom plate 7 and the fourth template 6 are connected by a mold foot 8, and an activity space 9 is formed between the fourth template 6 and the bottom plate 7 by the mold foot 8, and a first ejection component 10 is provided in the activity space 9, The second ejector assembly 11 and the mold foot 8 are provided with a positioning structure 12 capable of supporting the first ejector assembly 10. The second ejector assembly 11 is located between the first ejector assembly 10 and the bottom plate 7. A mold cavity 13 is provided in the first template 2, a first mold cavity 14 connected to the mold cavity 13 is provided in the second template 3, a material port 15 connected to the first mold cavity 14 is provided in the first panel 5, a second mold cavity 16 connected to the material port 15 is provided in the third template 4, and a first ejector pin hole 17 connected to the second mold cavity 16 is provided in the fourth template 6.

[0020] In the above structure, by dividing the mold into components such as the top plate 1, the first mold plate 2, the second mold plate 3, the third mold plate 4, the fourth mold plate 6, and the bottom plate 7, and connecting them in a stacked manner, the overall mold structure is simplified, the mold design complexity is reduced, and the mold manufacturing and assembly process is simplified. The precise matching design of the first mold cavity 14, the second mold cavity 16, and the mold cavity 13 ensures the dimensional accuracy of the top cap during the molding process and improves molding efficiency. The connection between the material port 15 and the mold cavity ensures uniform material distribution and reduces the defective product rate. The mold design is flexible and can accommodate the production of top caps of different specifications by adjusting the distance between the mold plates and the mold cavity size, thereby improving the flexibility and adaptability of the production line. The independent design of the first panel 5 facilitates processing and subsequent maintenance, reducing the cost of replacing the entire mold due to local wear or damage. The positioning structure 12 on the mold foot 8 ensures stable support for the first ejector assembly 10, facilitating maintenance and replacement. The design of the first ejector pin hole 17 ensures that the finished product can be effectively ejected during mold opening, preventing the top cap from sticking to the mold and improving the surface quality and dimensional consistency of the top cap. The design of the first ejection assembly 10 and the second ejection assembly 11 and the positioning structure 12 provided in the activity space 9 simplifies the operation process, reduces adjustment time and material waste during the production process, and improves production efficiency.

[0021] Specifically, the first panel 5 is detachably connected to the bottom of the second template 3 .

[0022] Specifically, the second template 3 is provided with a panel groove that matches the first panel 5 .

[0023] Specifically, the first ejector assembly 10 is provided with a second ejector hole 19 , and the second ejector hole 19 is aligned with the first ejector hole 17 .

[0024] Specifically, the second ejector assembly 11 is provided with a third ejector hole 20 , and the third ejector hole 20 is aligned with the second ejector hole 19 .

[0025] Specifically, the first ejection assembly 10 is provided with a first guide post hole 21 , and the second ejection assembly 11 is provided with a second guide post hole 22 . The first guide post hole 21 and the second guide post hole 22 are aligned.

[0026] The above describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and description merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A molding die for a painting pen cap, characterized by: The present invention comprises a top plate, wherein a first template is superimposed below the top plate, a second template is superimposed below the first template, a third template is superimposed below the second template, a first panel is arranged between the second and third templates, a fourth template is superimposed below the third template, and a bottom plate is arranged below the fourth template. The bottom plate and the fourth template are connected by a mold foot, and an activity space is formed between the fourth template and the bottom plate by the mold foot. A first ejector assembly and a second ejector assembly are arranged in the activity space, a positioning structure capable of supporting the first ejector assembly is provided on the mold foot, and the second ejector assembly is located between the first ejector assembly and the bottom plate; a mold cavity is provided in the first template, a first mold cavity connected to the mold cavity is provided in the second template, a material port connected to the first mold cavity is provided in the first panel, a second mold cavity connected to the material port is provided in the third template, and a first ejector pin hole connected to the second mold cavity is provided in the fourth template.

2. The painting pen top cap forming mold according to claim 1, characterized in that: The first panel is detachably connected to the bottom of the second template.

3. The painting brush cap forming mold according to claim 2, characterized in that: The second template is provided with a panel groove that matches the first panel.

4. The painting brush cap forming mold according to claim 1, characterized in that: The first ejection assembly is provided with a second ejection pin hole, and the second ejection pin hole is aligned with the first ejection pin hole.

5. The painting pen cap forming mold according to claim 4, characterized in that: The second ejector assembly is provided with a third ejector pin hole, and the third ejector pin hole is aligned with the second ejector pin hole.

6. The painting brush cap forming mold according to claim 5, characterized in that: The first ejection assembly is provided with a first guide post hole, and the second ejection assembly is provided with a second guide post hole, and the first guide post hole is aligned with the second guide post hole.

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