CN221985693U

CN221985693U - A breathable cap injection mold

Info

Publication number: CN221985693U
Application number: CN202322921936.5U
Authority: CN
Inventors: 朱益德; 曾春生
Original assignee: Suzhou Zhenpu Medical Equipment Co ltd
Current assignee: Suzhou Zhenpu Medical Equipment Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-11-12
Anticipated expiration: 2033-10-31

Abstract

The utility model discloses an air-permeable cap injection mold which comprises a front mold, a rear mold and a guide part, wherein the front mold comprises an upper fixing plate and a front template, and the rear mold comprises a rear mold base, square iron, a stripping assembly, a supporting plate, an insert pin plate and a rear template. The front mould board is provided with a cavity, is provided with the injecting glue mouth on the upper fixed plate, is provided with the injecting glue way that communicates injecting glue mouth and a cavity on the front mould board, is provided with in the backup pad and inserts the needle, is provided with the ascending vertical hole of opening in the needle, is provided with the blowing post in the vertical hole, and the blowing post includes a post, the coaxial second number post that sets up on a post that pastes with the needle inner wall mutually, and second number post is provided with the clearance with the needle inner wall that inserts, and second number post upper end is provided with the blowing step, clearance and the ventilative cap shell of cavity shaping when the compound die. The advantages are that: the problem that the deformation of the shell of the breathable cap causes micro-change of the size and appearance defects due to welding is avoided, so that the breathable cap is more exquisite in molding and more precise in size, and the yield of the breathable cap is improved.

Description

Breathable cap injection mold

Technical Field

The utility model relates to the field of molds, in particular to an injection mold for a breathable cap.

Background

The medical ventilation cap is a common instrument in the medical field, and the ventilation cap structure comprises a shell with vertical holes and a ventilation film arranged on the shell, wherein the shell is similar to a bolt, and the ventilation film covers one end of the vertical holes of the shell. The traditional manufacturing method is to independently injection-mould the shell, then weld the ventilated membrane at the opening of the shell by utilizing ultrasonic welding, although the tightness between the ventilated membrane and the shell can be ensured, the shell which is originally well molded is deformed due to the heat influence generated by welding due to the fact that the welding is heated, so that the size change of the shell influences the function, the integrity of a product is reduced, and the defect of the product is caused.

In view of this, it is necessary to provide a vented cap injection mold.

Disclosure of Invention

The coil dispensing device provided by the utility model effectively solves the problems of appearance flaws and poor size in the production of the conventional breathable caps.

The technical proposal adopted by the utility model is that

The utility model provides a ventilative cap injection mold, includes front mould, back mould and connects the direction part of front mould and back mould, the front mould includes the fixed plate, sets up the preceding template on the fixed plate, the back mould includes back die holder, sets up square iron on the back die holder, sets up the stripper subassembly on the back die holder, sets up backup pad, the faller that sets up in the backup pad in square iron top, sets up the back template on the faller. The front mould board is provided with a size cavity, be provided with the injecting glue mouth on the upper fixed plate, be provided with the injecting glue way of intercommunication injecting glue mouth and a size cavity on the front mould board, be provided with the mold insert in the backup pad, be provided with the ascending vertical hole of opening in the mold insert, be provided with the blowing post in the vertical hole, the blowing post includes a size post that pastes with mold insert inner wall, coaxial setting No. two posts on a size post, no. two posts are provided with the clearance with mold insert inner wall, no. two post upper ends are provided with the blowing step, during the compound die clearance and the ventilative cap shell of cavity shaping.

Further is: the stripping assembly comprises a needle plate, a thimble arranged on the needle plate and a spring sleeved on the thimble, one end of the thimble is fixedly connected with the needle plate, the other end of the thimble passes through the support plate and the thimble embedding plate to prop against the rear template, and two ends of the spring respectively prop against the needle plate and the support plate.

Further is: the guide part comprises a guide sleeve arranged on the front die and a guide pillar arranged on the rear die, and the guide pillar is sleeved in the guide sleeve.

Further is: the needle plate comprises a first plate, a second plate arranged on the first plate and bolts for connecting the first plate and the second plate, counter bores are formed in the lower end face of the second plate, and the ejector pins are connected with the second plate through the counter bores.

Further is: the number of the first type cavities is multiple.

The utility model has the beneficial effects that: the structural design of the die and the production process using the die change the former forming process for welding the breathable film and the breathable cap shell, avoid the problem that the deformation of the breathable cap shell causes micro-change in size and appearance defects due to welding, enable the forming of the breathable cap to be more exquisite and precise in size, and improve the yield of the breathable cap.

Drawings

Fig. 1 is an overall schematic diagram of an injection mold for a breathable cap according to an embodiment of the present application.

Fig. 2 is a side view of an injection mold for a venting cap provided by an embodiment of the application.

Fig. 3 is a cross-sectional view taken along the A-A plane of fig. 2.

Fig. 4 is a cross-sectional view taken along the B-B plane of fig. 2.

Fig. 5 is a schematic view of a front mold plate of an injection mold for a venting cap provided by an embodiment of the application.

Fig. 6 is an exploded view of an insert pin, a discharge post, and an applied venting cap of a venting cap injection mold provided by an embodiment of the present application.

Marked in the figure as: 1. a front mold; 2. a rear mold; 3. a guide member; 11. an upper fixing plate; 12. a front template; 21. a rear die holder; 22. square iron; 23. a stripping assembly; 24. a support plate; 25. an inlaid needle plate; 26. a rear template; 101. a first cavity; 102. a glue injection port; 103. a glue injection channel; 27. inserting a needle; 28. a discharging column; 281. a first column; 282. a second column; 801. a discharging step; 231. a needle plate; 232. a thimble; 233. a spring; 311. a first plate; 312. a second plate;

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

As shown in fig. 1, an embodiment of the present application provides an injection mold for a ventilation cap, which comprises a front mold 1, a rear mold 2, and a guide member 3 connecting the front mold 1 and the rear mold 2, wherein the front mold 1 comprises an upper fixing plate 11, a front mold plate 12 disposed on the upper fixing plate 11, and the rear mold 2 comprises a rear mold base 21, a square iron 22 disposed on the rear mold base 21, a stripping assembly 23 disposed on the rear mold base 21, a support plate 24 disposed above the square iron 22, a needle plate 25 disposed on the support plate 24, and a rear mold plate 26 disposed on the needle plate 25. As shown in fig. 5, the front mold plate 12 is provided with a first cavity 101, the upper fixing plate 11 is provided with a glue injection port 102, and the front mold plate 12 is provided with a glue injection channel 103 communicating the glue injection port 102 with the first cavity 101. As shown in fig. 3, the supporting plate 24 is provided with an insert pin 27, a vertical hole with an upward opening is formed in the insert pin 27, a discharging column 28 is arranged in the vertical hole, the discharging column 28 comprises a first column 281 attached to the inner wall of the insert pin 27, and a second column 282 coaxially arranged on the first column 281, a gap is formed between the second column 282 and the inner wall of the insert pin 27, a discharging step 801 is formed at the upper end of the second column 282, and the gap and a cavity forming ventilation cap shell are formed during die assembly.

The breathable film and the gasket are molded into a first semi-finished product. The first semifinished product is then placed on the discharge step 801.

In actual use, in the mold opening state, the first semi-finished product is placed on the discharging step 801, then the mold is closed, and then the glue is injected into the glue injection channel 103 through the glue injection port 102, so that the hot glue is solidified in the gap and the first cavity 101 and is molded with the first semi-finished product, and a product is formed. After the product is cooled, the mold is opened, and the stripping assembly 23 is utilized to strip the material.

In the design, the structural design of the die and the production process using the die change the former forming process for welding the breathable film and the breathable cap shell, avoid the problem that the deformation of the breathable cap shell causes micro-change in size and appearance defects due to welding, enable the breathable cap to be formed more exquisite and precise in size, and improve the yield of the breathable cap.

Specifically: as shown in fig. 1 and 4, the stripping assembly 23 includes a needle plate 231, a thimble 232 disposed on the needle plate 231, and a spring 233 sleeved on the thimble 232, one end of the thimble 232 is fixedly connected with the needle plate 231, the other end of the thimble 232 passes through the support plate 24 and the inlay needle plate 25 to abut against the rear template 26, and two ends of the spring 233 abut against the needle plate 231 and the support plate 24 respectively.

In actual use, the needle plate 231 drives the ejector pins 232 to move towards one side of the rear template 26, so that the ejector pins 232 eject the rear template 26, and the rear template 26 pushes against the end part of the ventilation cap shell to drive the ventilation cap to gradually separate from the forming space due to the structural characteristics of the ventilation cap shell.

In the above design, the structural design of the stripping assembly 23 can enable the air-permeable cap to be rapidly stripped.

Specifically: the guide part 3 comprises a guide sleeve arranged on the front die 1 and a guide post arranged on the rear die 2, and the guide post is sleeved in the guide sleeve.

When in actual use, the guide post slides relative to the guide sleeve in the process of die opening and die closing.

In the above design, the structural design and specific implementation mode of the guide component 3 can enable the alignment of the die opening and closing process to be more accurate.

Specifically: as shown in fig. 4, the needle plate 231 includes a first plate 311, a second plate 312 disposed on the first plate 311, and a bolt connecting the first plate 311 and the second plate 312, a counter bore is disposed on a lower end surface of the second plate 312, and the thimble 232 is connected with the second plate 312 through the counter bore.

In actual use, when the thimble 232 needs to be replaced, the bolt is removed, so that the first plate 311 and the second plate 312 are separated, and then the thimble 232 is replaced.

In the above design, the structural design and specific embodiment of the needle plate 231 can make the replacement of the ejector pin 232 more convenient.

Specifically: as shown in fig. 5, the number of the first cavities 101 is plural.

In the design, the number of the first cavities 101 is set to be a plurality of products which can be molded at one time, so that the production efficiency of the products can be effectively improved.

It should be understood that the foregoing description is only illustrative of the present utility model and is not intended to limit the utility model to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. The utility model provides a ventilative cap injection mold, includes preceding mould (1), rear mould (2) and connects guide part (3) of preceding mould (1) and rear mould (2), preceding mould (1) are including last fixed plate (11), front mould board (12) of setting on last fixed plate (11), rear mould (2) include back die holder (21), set up square iron (22) on back die holder (21), set up take off material subassembly (23) on back die holder (21), set up backup pad (24) in square iron (22) top, set up thimble board (25) on backup pad (24), set up back template (26) on thimble board (25), its characterized in that: the novel plastic injection molding machine is characterized in that a first mold cavity (101) is arranged on the front mold plate (12), a plastic injection port (102) is arranged on the upper fixing plate (11), a plastic injection channel (103) which is communicated with the plastic injection port (102) and the first mold cavity (101) is arranged on the front mold plate (12), a needle (27) is arranged on the supporting plate (24), a vertical hole with an upward opening is formed in the needle (27), a discharging column (28) is arranged in the vertical hole, the discharging column (28) comprises a first column (281) which is attached to the inner wall of the needle (27), and a second column (282) which is coaxially arranged on the first column (281), a gap is formed between the second column (282) and the inner wall of the needle (27), and a discharging step (801) is arranged at the upper end of the second column (282), and the gap and the mold cavity form a ventilation cap shell during mold closing.

2. The vented cap injection mold of claim 1, wherein: the stripping assembly (23) comprises a needle plate (231), a thimble (232) arranged on the needle plate (231) and a spring (233) sleeved on the thimble (232), one end of the thimble (232) is fixedly connected with the needle plate (231), the other end of the thimble (232) passes through the supporting plate (24) and the inlaid needle plate (25) to be propped against the rear template (26), and two ends of the spring (233) are propped against the needle plate (231) and the supporting plate (24) respectively.

3. The vented cap injection mold of claim 1, wherein: the guide part (3) comprises a guide sleeve arranged on the front die (1) and a guide pillar arranged on the rear die (2), and the guide pillar is sleeved in the guide sleeve.

4. The vented cap injection mold of claim 2, wherein: the needle plate (231) comprises a first plate (311), a second plate (312) arranged on the first plate (311) and bolts for connecting the first plate (311) and the second plate (312), countersunk holes are formed in the lower end face of the second plate (312), and the ejector pins (232) are connected with the second plate (312) through the countersunk holes.

5. The vented cap injection mold of claim 1, wherein: the number of the first cavities (101) is multiple.