CN216941643U

CN216941643U - Plastic bottle cap injection mold convenient for demolding

Info

Publication number: CN216941643U
Application number: CN202220436773.4U
Authority: CN
Inventors: 李宏毅; 付有林
Original assignee: Tianjin Fuermao Medicine Package Co ltd
Current assignee: Tianjin Fuermao Medicine Package Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-07-12
Anticipated expiration: 2032-03-02

Abstract

The utility model discloses a plastic bottle cap injection mold convenient for demolding, which comprises a first metal shell and a third metal shell, wherein a connecting block is fixedly connected to the inner surface of the first metal shell, a second metal shell is fixedly connected to one end, far away from the first metal shell, of the connecting block, a first cavity is formed between the first metal shell and the second metal shell, cooling liquid is filled in the first cavity, threads are arranged on the outer surface of the third metal shell, a second cavity is formed in the third metal shell, a clamping device is arranged on the lower surface of the first metal shell, and a pressure relief valve is arranged on the left surface of the first metal shell. According to the utility model, by designing the clamping device, easier demoulding is realized, the use efficiency of the device is increased, and by designing the pressure relief valve, when the volume in the device is changed, the device can be observed through the valve, so that the defect products caused by foreign matters in the device are avoided.

Description

Plastic bottle cap injection mold convenient for demolding

Technical Field

The utility model relates to the field of injection molds, in particular to a plastic bottle cap injection mold convenient for demolding.

Background

The plastic bottle cap is a common packaging form of the prior bottle, can and barrel packaging, is widely applied to the fields of beverages, chemical industry and the like, generally takes polyolefin as a main raw material, is processed and formed by processes such as injection molding or hot pressing, and generally needs a corresponding injection mold for the injection molded plastic bottle cap. The outer wall of the plastic bottle cap is provided with vertical stripes for increasing the friction force of hands, and the plastic bottle cap is internally provided with a thread section matched with the bottle body.

The existing plastic bottle cap injection mold convenient for demolding has the following defects:

1. the existing plastic bottle cap injection mold has the situation that the mold is not easy to demould;

2. at present, the plastic bottle cap injection mold convenient for demolding is difficult to check the actual condition inside the mold, and the condition of defective products easily occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides an injection mold for a plastic bottle cap, which is convenient to demold.

In order to achieve the purpose, the utility model adopts the following technical scheme: a plastic bottle cap injection mold convenient for demolding comprises a first metal shell and a third metal shell, wherein the inner surface of the first metal shell is fixedly connected with a connecting block, one end, far away from the first metal shell, of the connecting block is fixedly connected with a second metal shell, a first cavity is formed between the first metal shell and the second metal shell, and cooling liquid is filled in the first cavity;

the surface of third metal casing is provided with the screw thread, the inside second cavity that forms of third metal casing, the lower surface of first metal casing is provided with clamping device, the left surface of first metal casing is provided with pressure relief valve.

As a further description of the above technical solution:

the upper surface of first metal casing is provided with first connecting axle, the upper surface of first metal casing just is located the right side fixedly connected with first pipe of first connecting axle.

As a further description of the above technical solution:

the outer surface of the third metal shell is provided with a seal at the lower side of the threads, the outer surface of the seal is in contact with the inner surface of the second metal shell, and a second connecting shaft is arranged on the lower surface of the third metal shell.

As a further description of the above technical solution:

and a second guide pipe is arranged on the upper surface of the third metal shell and positioned on the right side of the second connecting shaft.

As a further description of the above technical solution:

the clamping device comprises a telescopic rod and a supporting ring fastening ring.

As a further description of the above technical solution:

the first metal shell is fixedly connected with the support ring, and the left surface of the support ring is fixedly connected with the telescopic rod.

As a further description of the above technical solution:

the output end of the telescopic rod is fixedly connected with the fastening rings, and the number of the fastening rings is two and the fastening rings are distributed in a left-right mode.

As a further description of the above technical solution:

the right surface of the pressure relief valve extends to the interior of the second metal shell.

The utility model has the following beneficial effects:

1. compared with the prior art, this plastics bottle lid injection mold convenient to drawing of patterns through designing clamping device, realizes drawing of patterns more easily, increases the efficiency that the device used.

2. Compared with the prior art, this plastics bottle lid injection mold convenient to drawing of patterns through the design relief valve, realizes through the relief valve that when the volume in inside changes, can observe through the valve, avoids inside foreign matter appearing to lead to the wastrel to appear.

Drawings

Fig. 1 is a schematic diagram of an internal structure of a plastic bottle cap injection mold convenient for demolding according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a top view of an injection mold for plastic bottle caps convenient for demolding, according to the present invention;

fig. 4 is a schematic view of the overall structure of the plastic bottle cap injection mold convenient for demolding according to the present invention.

Illustration of the drawings:

1. a first metal case; 2. a second metal case; 3. connecting blocks; 4. a first cavity; 5. a thread; 6. cooling liquid; 7. a first connecting shaft; 8. a first conduit; 9. a third metal case; 10. a second cavity; 11. a second conduit; 12. a second connecting shaft; 13. a fastening ring; 14. a support ring; 15. a telescopic rod; 16. a clamping device; 17. sealing; 18. a pressure relief valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the utility model provides a plastic bottle cap injection mold convenient for demolding: including first metal casing 1, third metal casing 9, the upper surface of first metal casing 1 is provided with first connecting axle 7, be used for driving first metal casing 1 to carry out the displacement, the upper surface of first metal casing 1 just is located the first pipe 8 of right side fixedly connected with of first connecting axle 7, be used for the circulation of coolant liquid 6, the internal surface fixedly connected with connecting block 3 of first metal casing 1, the one end fixedly connected with second metal casing 2 of first metal casing 1 is kept away from to connecting block 3, form first cavity 4 between first metal casing 1 and the second metal casing 2, be used for cooling the bottle lid, the inside packing of first cavity 4 has coolant liquid 6.

The outer surface of the third metal shell 9 is provided with a thread 5, the upper surface of the third metal shell 9 and the right side of the second connecting shaft 12 are provided with a second guide tube 11, the outer surface of the third metal shell 9 and the lower side of the thread 5 are provided with a seal 17 for preventing fluid from flowing out and controlling the pressure of the injected fluid, the outer surface of the seal 17 is in contact with the inner surface of the second metal shell 2, the lower surface of the third metal shell 9 is provided with the second connecting shaft 12, a second cavity 10 is formed inside the third metal shell 9, the front inner wall of the second cavity 10 is provided with a valve, the lower surface of the first metal shell 1 is provided with a clamping device 16 for separating the bottle cap from the third metal shell 9, the clamping device 16 comprises a telescopic rod 15 and a supporting ring 14 fastening ring 13, the left surface of the first metal shell 1 is provided with a pressure relief valve 18 for injecting a certain amount of plastic, when can surpass the pressure threshold value, liquid can flow, occupies the volume from judging that the inside foreign matter that has of mould, and the right surface of pressure relief valve 18 extends to the inside of second metal casing 2, first metal casing 1 and support ring 14 fixed connection, the left surface and the telescopic link 15 fixed connection of support ring 14, the output and the tighrening ring 13 fixed connection of telescopic link 15, the quantity of tighrening ring 13 is two and controls the distribution.

The working principle is as follows: the positions of the first metal shell 1 and the third metal shell 9 are controlled through the first connecting shaft 7 and the second connecting shaft 12, raw materials are injected into the second guide pipe 11, the valve passing through the second cavity 10 is injected between the second metal shell 2 and the third metal shell 9, the pressure relief valve 18 can exceed the pressure threshold value when quantitative plastic is injected, liquid can flow out, the occupied volume of foreign bodies in the judgment die is determined, the second connecting shaft 12 is shortened to rotate after being clamped by the clamping device 16 after the temperature is reduced, and the bottle cap can be separated from the third metal shell 9.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a plastics bottle lid injection mold convenient to drawing of patterns, includes first metal casing (1), third metal casing (9), its characterized in that: the inner surface of the first metal shell (1) is fixedly connected with a connecting block (3), one end, far away from the first metal shell (1), of the connecting block (3) is fixedly connected with a second metal shell (2), a first cavity (4) is formed between the first metal shell (1) and the second metal shell (2), and cooling liquid (6) is filled in the first cavity (4);

the surface of third metal casing (9) is provided with screw thread (5), the inside of third metal casing (9) forms second cavity (10), the lower surface of first metal casing (1) is provided with clamping device (16), the left surface of first metal casing (1) is provided with pressure relief valve (18).

2. The plastic bottle cap injection mold facilitating demolding according to claim 1, wherein: the upper surface of first metal casing (1) is provided with first connecting axle (7), the upper surface of first metal casing (1) just is located the right side fixedly connected with first pipe (8) of first connecting axle (7).

3. The plastic bottle cap injection mold facilitating demolding according to claim 1, wherein: the outer surface of the third metal shell (9) is provided with a seal (17) at the lower side of the thread (5), the outer surface of the seal (17) is in contact with the inner surface of the second metal shell (2), and the lower surface of the third metal shell (9) is provided with a second connecting shaft (12).

4. The plastic bottle cap injection mold facilitating demolding according to claim 1, wherein: and a second guide pipe (11) is arranged on the upper surface of the third metal shell (9) and positioned on the right side of the second connecting shaft (12).

5. The plastic bottle cap injection mold convenient for demolding as claimed in claim 1, wherein: the clamping device (16) comprises a telescopic rod (15) and a supporting ring (14) fastening ring (13).

6. The plastic bottle cap injection mold facilitating demolding as claimed in claim 5, wherein: the first metal shell (1) is fixedly connected with a support ring (14), and the left surface of the support ring (14) is fixedly connected with a telescopic rod (15).

7. The plastic bottle cap injection mold facilitating demolding as claimed in claim 5, wherein: the output end of the telescopic rod (15) is fixedly connected with the fastening rings (13), and the number of the fastening rings (13) is two and distributed in a left-right mode.

8. The plastic bottle cap injection mold facilitating demolding according to claim 1, wherein: the right surface of the pressure relief valve (18) extends to the inside of the second metal shell (2).