CN211730029U - A cylindrical injection mold - Google Patents

Abstract

The utility model relates to the technical field of molds, in particular to a cylindrical injection mold, comprising a fixed seat, an upper mold, a lower mold, an upper mold core, a lower mold core, and an inner mold. An injection molding part is formed, the upper mold core and the lower mold core are detachably installed inside the injection molding part, the inner mold is movably installed between the upper mold core and the lower mold core, and the inner mold It includes a male mold and a female mold, the male mold is arranged at the left end between the upper mold core and the lower mold core, and the female mold is arranged between the upper mold core and the lower mold core. The right end of the male mold and the right end of the female mold are respectively connected with a pulling mechanism. After the injection molding is completed, the male mold and the female mold of the present invention can be pulled to the left and right ends respectively, and then the upper mold core is moved upward. After moving, the injection-molded parts can be taken out, which is convenient to use. Compared with the traditional injection mold, the utility model is more convenient to demould.

Description

A cylindrical injection mold

technical field

The utility model relates to the technical field of molds, in particular to a cylindrical injection mold.

Background technique

Injection mold is a tool for producing plastic products, and it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in mass production of some complex-shaped parts. Specifically, it refers to injecting plastic or metal liquid that is melted by heat into the mold cavity under high pressure from an injection molding machine, and after cooling and solidifying, a molded product is obtained. The cylindrical shell has become one of the most important parts of many products. For the cylinders of some important parts, such as sights, high precision is required. The existing cylindrical injection molds generally use up and down during the injection molding process. The mold is injected, and it is not easy to demold after the injection is completed, which makes the injection efficiency low.

Utility model content

The utility model provides a cylindrical injection mold which is convenient for demoulding in view of the problems of the prior art.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

The utility model provides a cylindrical injection mold, comprising a fixed seat, an upper mold, a lower mold, an upper mold core, a lower mold core, and an inner mold. The lower mold is installed on the fixed seat, and the upper mold An injection molding part is formed between the lower mold and the upper mold core and the lower mold core is detachably installed inside the injection molding part, and the inner mold is movably installed between the upper mold core and the lower mold core. In between, the upper mold is provided with an injection port, the injection port communicates with the injection part, the inner mold includes a male mold and a female mold, and the male mold is arranged on the upper mold core and the The left end between the lower mold cores, the female mold is arranged at the right end between the upper mold core and the lower mold core, and a pulling mechanism is respectively connected to the left end of the male mold and the right end of the female mold.

Preferably, the pulling mechanism includes a sliding block, a pulling rod and a cylinder, the sliding block is connected with the male mold or the female mold, the pulling rod sliding block is movably arranged on the pulling rod, and the pulling rod One end of the rod is connected with the cylinder.

Preferably, a block is provided on the side of the slider, and the block is fixedly mounted on the lower mold.

Preferably, both the upper and lower ends of the pulling rod are provided with a space-apart portion.

Preferably, the upper mold and the lower mold are provided with a water circulation pipe, a water inlet and a water outlet, and the water inlet, the water circulation pipe and the water outlet are connected in sequence.

Preferably, guide posts are provided between the upper die and the lower die, and there are four guide posts.

Preferably, an ejector rod is arranged inside the lower mold, and the ejector rod penetrates the upper mold core and the lower mold core.

Preferably, there are four ejector rods.

The beneficial effects of the present utility model:

The utility model provides a cylindrical injection mold, comprising a fixed seat, an upper mold, a lower mold, an upper mold core, a lower mold core, and an inner mold, the lower mold is installed on the fixed seat, and the upper mold is connected to the An injection molding part is formed between the lower molds, the upper mold core and the lower mold core are detachably installed inside the injection molding part, and the inner mold is movably installed inside the upper mold core and the lower mold core Inside, the upper mold is provided with an injection port, the injection port is connected to the injection part, the inner mold includes a male mold and a female mold, and the male mold is arranged inside the upper mold core and The left end inside the lower die core, the female die is arranged inside the upper die core and the right end inside the lower die core, the left end of the male die and the right end of the female die are respectively connected with a pulling mechanism After the injection molding is completed, the male mold and the female mold of the present utility model can be pulled to the left and right ends respectively, and then the upper mold core can be moved upwards, and then the injection molded parts can be taken out, which is convenient for use, which is similar to the traditional cylindrical injection mold. Compared with the present invention, demoulding is more convenient, and the upper die core and the lower die core of the present invention are detachably installed, and when the upper die core and the lower die core are damaged, it is convenient to replace.

Description of drawings

Figure 1 is a cross-sectional view of the utility model.

FIG. 2 is another cross-sectional view of the utility model.

FIG. 3 is a schematic structural diagram of the utility model.

The reference numbers are:

Upper mold--1, lower mold--2, upper mold core--3, lower mold core--4, inner mold--5, injection part--6, injection port--7, male mold--8, Master mold--9, pulling mechanism--10, sliding block--11, pulling rod--12, stopper--13, parting part--14, water inlet--15, water outlet--16, guide Column--17, ejector rod--18, fixed seat--19.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the embodiments and the accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1-3, the utility model provides a cylindrical injection mold, including a fixed seat 19, an upper mold 1, a lower mold 2, an upper mold core 3, a lower mold core 4, and an inner mold 5. The lower mold The mold 2 is installed on the fixed seat 19, an injection molding part 6 is formed between the upper mold 1 and the lower mold 2, and the upper mold core 3 and the lower mold core 4 are detachably installed on the injection molding part 6 Inside, the inner mold 5 is movably installed between the upper mold core 3 and the lower mold core 4, the upper mold 1 is provided with an injection port 7, the injection port 7 and the injection part 6 Through, the inner mold 5 includes a male mold 8 and a female mold 9, the male mold 8 is arranged at the left end between the upper mold core 3 and the lower mold core 4, and the female mold 9 is arranged at the left end. The right end between the upper mold core 3 and the lower mold core 4, the left end of the male mold 8 and the right end of the female mold 9 are respectively connected with a pulling mechanism 10. After the injection molding is completed, the utility model The male mold 8 and the female mold 9 can be pulled to the left and right ends respectively, and after the upper mold core 3 is moved upward, the injection-molded parts can be taken out, which is convenient for use. The mold is more convenient, and the upper mold core 3 and the lower mold core 4 of the present invention are detachably installed, and when the upper mold core 3 and the lower mold core 4 are damaged, it is convenient to replace.

As shown in FIGS. 1-3 , in this embodiment, the pulling mechanism 10 includes a sliding block 11 , a pulling rod 12 and an air cylinder. The sliding block 11 is connected to the male mold 8 or the female mold 9 , and the The pull rod 12 and the slider 11 are movably arranged on the pull rod 12, and one end of the pull rod 12 is connected to the cylinder. After the injection molding is completed, the cylinder is used to drive the pull rod 12 to move up and down, and the slider 11 is pulling Driven by the rod 12, it moves outward, so that the male mold 8 and the female mold 9 come out from the upper mold core 3 and the lower mold core 4. On the contrary, the slider 11 is driven inward by the pulling rod 12, so that the male mold The front end of 8 is in contact with the front end of the master mold 9, ready for the next injection.

As shown in FIGS. 1-3 , in this embodiment, in order to prevent the pulling rod 12 from pulling the male mold 8 or the female mold 9 out of the injection part 6 , a block 13 is provided on the side of the slider 11 . The block 13 is fixedly installed on the lower mold 2 , and when the slider 11 abuts against the block 13 , the cylinder stops working.

As shown in FIGS. 1-3 , in this embodiment, in order to prevent the upper mold 1 and the lower mold 2 from restricting the movement of the pulling rod 12 , the upper and lower ends of the pulling rod 12 are provided with a space-apart portion 14 .

As shown in Figures 1-3, in this embodiment, the upper mold 1 and the lower mold 2 are provided with a water circulation pipe, a water inlet 15 and a water outlet 16, the water inlet 15, the water circulation pipe . The water outlets 16 pass through in sequence. During the injection molding process, hot water can be injected into the water circulation pipe for preheating the upper mold core 3 and the lower mold core 4 inside the upper mold 1 and the lower mold 2.

As shown in FIGS. 1-3 , in this embodiment, guide posts 17 are provided between the upper die 1 and the lower die 2 , and there are four guide posts 17 , and the guide posts 17 are used to connect the upper die 1 and the lower mold 2 are limited to prevent the upper mold 1 and the lower mold 2 from being offset.

As shown in Figures 1-3, in this embodiment, the lower mold 2 is provided with an ejector rod 18, the ejector rod 18 penetrates the upper mold core 3 and the lower mold core 4, and the ejector rod There are four ejector rods 18, and the ejector rods 18 are used to separate the upper mold 1 and the lower mold 2, so as to facilitate the removal of the components after the injection molding is completed.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment, it is not intended to limit the present Professional and technical personnel, within the scope of the technical solution of the present invention, make some changes or modifications to the equivalent embodiments of the equivalent changes by using the technical content disclosed above, provided that the content of the technical solution of the present invention is not departed from, according to the present invention. The utility model technology refers to any simple modification, equivalent change and modification made to the above embodiments, which all belong to the scope of the technical solution of the present utility model.

Claims (8)

1. a cylindrical injection mould, it is characterized in that: comprise fixing seat, upper mould, lower mould, upper mould kernel, lower mould kernel, inner mould, described lower mould is installed on described fixing seat, described upper mould An injection molding part is formed between the lower mold and the upper mold core and the lower mold core is detachably installed inside the injection molding part, and the inner mold is movably installed between the upper mold core and the lower mold core. The upper mold is provided with an injection port, the injection port communicates with the injection part, the inner mold includes a male mold and a female mold, and the male mold is arranged on the upper mold core and the lower mold The left end between the cores, the female die is arranged on the right end between the upper die core and the lower die core, and a pulling mechanism is respectively connected to the left end of the male die and the right end of the female die. 2 . The cylindrical injection mold according to claim 1 , wherein the pulling mechanism comprises a sliding block, a pulling rod and an air cylinder, and the sliding block is connected with the male mold or the female mold, so that the The pulling rod sliding block is movably arranged on the pulling rod, and one end of the pulling rod is connected with the air cylinder. 3 . The cylindrical injection mold according to claim 2 , wherein a block is provided on the side of the slider, and the block is fixedly installed on the lower mold. 4 . 4 . The cylindrical injection mold according to claim 2 , wherein the upper and lower ends of the pulling rod are provided with a space-apart portion. 5 . 5. A cylindrical injection mold according to claim 1, wherein the upper mold and the lower mold are provided with a water circulation pipe, a water inlet and a water outlet, the water inlet, the The water circulation pipe and the water outlet are connected in sequence. 6 . The cylindrical injection mold according to claim 1 , wherein guide posts are arranged between the upper die and the lower die, and there are four guide posts. 7 . 7 . The cylindrical injection mold according to claim 1 , wherein an ejector rod is arranged inside the lower mold, and the ejector rod penetrates the upper mold core and the lower mold core. 8 . 8 . The cylindrical injection mold according to claim 7 , wherein there are four ejector rods. 9 .

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