CN204604767U - A kind of voluminous injection mould - Google Patents

Abstract

A prolific injection mold, comprising an upper mold, a lower mold and a driving part, the upper mold is provided with a plurality of vertically arranged first grooves and a plurality of first cores extending downward along the depth direction of the first grooves, The plurality of first cores are arranged in the first groove in one-to-one correspondence; the lower mold is provided with a plurality of second grooves corresponding to the first groove and arranged horizontally, and the lower mold is movable. A plurality of second cores, the inner surface of the second core is attached to the lower end surface of the first core when the mold is closed; the corresponding outer surface of the first core, the outer surface of the second core, the second The inner wall of a groove and the inner wall of the second groove cooperate to form a cavity consistent with the structure of the elbow; the upper mold is provided with an injection flow channel for introducing the injection molding melt into the cavity; the prolific injection mold also includes a The guide mechanism that drives the second core to move out of the second groove along the horizontal direction when the mold is opened. The utility model improves production efficiency and saves production cost.

Description

A productive injection mold

technical field

The utility model relates to a prolific injection mold.

Background technique

The injection mold consists of two parts, the upper mold and the lower mold. The upper mold is installed on the movable template of the injection molding machine, and the lower mold is installed on the fixed template of the injection molding machine. During injection molding, the upper mold and the lower mold are closed to form the gating system and the cavity, and the upper mold and the lower mold are separated to take out the plastic product when the mold is opened.

At present, the injection molds for the production of bends at home and abroad mostly use one bend and one model, that is, one mold with one cavity (large bends above 100mm) and one mold with multiple cavities (small bends below 100mm). One mold produces one Standard products, products with multiple specifications require multiple molds and multiple injection molding machines. If there are no multiple injection molding machines, it is necessary to replace the mold after one product is produced, and then produce the next specification product, resulting in high investment costs for manufacturing molds and equipment. Long production cycle and low efficiency. Although a multi-cavity mold can produce multiple products of the same specification, it also has the disadvantages of large mold, high mold cost and the need to use a high-power injection molding machine.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a multi-production injection mold capable of producing multiple bent pipes of different specifications at one time, with low cost and high production efficiency.

In order to achieve the above object, the utility model adopts the following technical solutions:

A kind of multi-production injection mold, comprises upper mold, lower mold and a driving part for driving mold opening/closing, upper mold is provided with a plurality of vertically arranged first grooves and a plurality of depths along the first grooves The first cores extending downward, the multiple first cores are arranged in the first grooves in one-to-one correspondence; the lower mold is provided with a plurality of second horizontally arranged one-to-one corresponding to the first grooves. Grooves, a plurality of second cores are movable on the lower mold, and the inner surface of the second cores is attached to the lower end surface of the first cores when the mold is closed; the corresponding outer surface of the first cores is surface, the outer surface of the second core, the inner wall of the first groove, and the inner wall of the second groove cooperate to form a cavity that is consistent with the structure of the elbow; the upper mold is provided with a mold that communicates with the injection molding machine and is used to introduce the injection molding melt into the cavity Injection channel inside; the multi-production injection mold also includes a guide mechanism for driving the second core to move out of the second groove along the horizontal direction when the mold is opened.

Preferably, the guide mechanism includes an inclined guide post arranged on the upper mold and a slider slidingly connected with the lower end of the inclined guide post; the inclined guide post gradually inclines outward from top to bottom, and the second core is fixed on the slider.

Preferably, the slider is provided with a through hole for the oblique guide post to pass through, and the oblique guide post passes through the through hole and is slidably connected with the slider.

Preferably, a sliding groove is provided on the upper end surface of the lower die, and the slider is movably arranged in the sliding groove.

Preferably, the upper mold includes a mold base and an inner mold, and the inner mold is fixed on the mold base by bolts.

Preferably, the injection channel includes a main channel and a plurality of branch channels corresponding to the cavity one by one, one end of the branch channel communicates with the end of the main channel, and the other end of the branch channel communicates with the corresponding cavity.

Preferably, the number of cavities is four.

The beneficial effects of the utility model are:

Compared with the prior art, the multi-production injection mold of the utility model can produce multiple bent pipes of different specifications at one time through the multiple cavities that can be formed by the upper mold and the lower mold when the mold is closed, which improves the production efficiency. High efficiency, saving production cost; and the mold is designed with a guiding mechanism to drive the lateral core pulling of the mold, and its structure is simple, stable and convenient for processing.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Description of drawings: 10, upper mold; 11, injection runner; 12, mold frame; 13, inner mold; 14, first core; 20, lower mold; 21, slider; 22, second core; 30 , Inclined guide column.

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the utility model is described further:

A multi-production injection mold as shown in FIG. 1 includes an upper mold 10, a lower mold 20 and a driving part for driving the mold opening/closing. The upper mold 10 is provided with a plurality of first grooves and first cores 14, and the first grooves are arranged in the vertical direction. Specifically, the first cores 14 are arranged in the first grooves and along the first grooves. The depth direction of the groove extends downwards; correspondingly, a plurality of second grooves and a plurality of second cores 22 are provided on the lower mold 20, and specifically the second grooves correspond to the above-mentioned first grooves one by one; During mold closing, the inner surface of the second core 22 is attached to the lower end surface of the first core 14, so that the corresponding outer surface of the first core 14, the outer surface of the second core 22, the second The inner wall of the first groove and the inner wall of the second groove can cooperate to form a cavity consistent with the structure of the bent pipe. At the same time, an injection runner 11 is provided on the above-mentioned upper mold 10. One end of the injection runner 11 communicates with the injection molding machine, and the other end communicates with the cavity, so that the injection melt enters the cavity through the injection runner, which is convenient for product Formed in the cavity. Specifically, the finished products produced in the prolific injection mold can be of different specifications or of the same specification, which facilitates production and improves production efficiency.

In addition, the prolific injection mold also includes a guide mechanism, specifically, the guide mechanism is used to drive the second core 22 to move out of the second groove along the horizontal direction when the mold is opened, so as to perform lateral core pulling. In this embodiment, the guide mechanism may specifically include an inclined guide post 30 and a slider 21 on which the above-mentioned second core 22 is fixed. Specifically, the inclined guide post 30 is arranged on the upper mold 10 and gradually inclines outward from top to bottom. The inclined guide post 30 is slidingly connected with the above-mentioned slider 21. 30 moves up and down, which can drive the slider 21 to move in the horizontal direction, so as to play the role of lateral core pulling and facilitate the molding of products. Further, a through hole for the oblique guide post 30 to pass through may be opened on the slider 21, and the oblique guide post 30 is slidably connected with the slider 21 through the through hole, which can simplify the structure of the entire mold. Certainly, other structures may be provided on the slider 21 so that the inclined guide post 30 is slidably connected thereto. In addition to the above-mentioned guiding mechanism that adopts the combination of the inclined guide column and the slider to drive the second core 22 to move horizontally, the utility model can also adopt other guiding mechanisms to move the upper mold 10 relative to the lower mold 20 when the upper mold 10 moves relative to the lower mold 20. The up and down movement of the upper mold 10 and the lower mold 20 is converted into the horizontal movement of the second core 22 .

In this embodiment, the above-mentioned driving mechanism is a hydraulic cylinder, specifically an oil cylinder may be used for driving, which generally makes the mold structure relatively simple, and other driving devices may also be used for driving.

Preferably, a sliding groove is provided on the upper end surface of the lower mold 20, and the sliding block 21 is movably arranged in the sliding groove, so that the movable range of the sliding block 21 can be limited in the sliding groove, and the activity of the above-mentioned inclined guide post 30 is also limited. range, improving the production accuracy of the entire mold.

Preferably, the above-mentioned upper mold 10 may include a mold frame 12 and an inner mold 13, and the inner mold 13 is fixed on the mold frame 12 by bolts. Because most of the mold bases 12 are made of precious metals when producing molds, and the inner mold 13 is interchangeable, in this mould, the bolt-fixed structure can be used to directly replace the inner mold 13 when the inner mold 13 is damaged without changing the mold. Frame 12 saves costs like this.

Preferably, the above-mentioned injection channel 11 mainly includes a main channel and a plurality of sub-runners corresponding to the cavities one by one, one end of the sub-runner communicates with the end of the main channel, and the other end of the sub-runner communicates with the corresponding cavity. The injection melt in the main channel guides the raw materials into different cavities through different runners, which facilitates product molding. In addition, the runners can be set between two cavities, so as to facilitate the sufficient flow of raw materials and make full use of raw materials.

Preferably, the number of cavities can be specifically four, which can make the structure of the mold more rational. Of course, during production, only one or two cavities can be used for production, depending on the production volume.

Specifically, when the mold is working, the upper and lower molds 20 are in the mold closing state, and the injection molding melt is injected into the cavity through the injection runner 11. After the product is formed, the mold is opened under the action of the driving parts. When the mold is opened, The first core 14 can be drawn upwards with the movement of the upper mold 10, and during the upward movement of the upper mold 10, the inclined guide post 30 will drive the slider 21 to move in the horizontal direction, and at this time it is fixed on the slider 21. The second core 22 on the top moves accordingly to achieve the effect of sideways core pulling. In this way, the whole elbow is processed and the finished product can be taken out. Of course, when there is no need to produce many finished products, the unnecessary cavity can be blocked to prevent the entry of raw materials, which can save raw materials and carry out reasonable production.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and ideas described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims (7)

1. A kind of prolific injection mold, comprises patrix, counterdie and a driving part for driving mold opening/closing, it is characterized in that, patrix is provided with the first groove of a plurality of vertical arrangements and a plurality of The first core extending downward along the depth direction of the first groove, the plurality of first cores are arranged in the first groove in one-to-one correspondence; the lower mold is provided with a plurality of And the second groove that is arranged horizontally, the lower mold is provided with a plurality of second cores movablely, and the inner surface of the second cores is attached to the lower end surface of the first cores when the mold is closed; The outer surface of the first core, the outer surface of the second core, the inner wall of the first groove and the inner wall of the second groove cooperate to form a cavity consistent with the structure of the elbow; the upper mold is provided with a connection with the injection molding machine and used to The injection melt is introduced into the injection channel in the cavity; the multi-production injection mold also includes a guide mechanism for driving the second core to move out of the second groove along the horizontal direction when the mold is opened. 2. The prolific injection mold according to claim 1, wherein the guide mechanism comprises an inclined guide post arranged on the upper mold and a slide block slidingly connected with the lower end of the inclined guide post; the inclined guide post is arranged from top to bottom Gradually inclined outwards, the second core is fixed on the slider. 3 . The productive injection mold according to claim 2 , wherein the slider is provided with a through hole through which the slanted guide post passes, and the slanted guide post passes through the through hole and is slidably connected with the slider. 4 . 4. The multi-production injection mold according to claim 2, wherein a sliding groove is provided on the upper surface of the lower mold, and the slider is movably arranged in the sliding groove. 5. The productive injection mold according to claim 1, wherein the upper mold comprises a mold frame and an inner mold, and the inner mold is fixed on the mold frame by bolts. 6. The prolific injection mold as claimed in claim 1, wherein the injection runner comprises a main runner and a plurality of runners corresponding to the cavity one by one, one end of the runner communicates with the end of the main runner, and the runner The other end is connected to the corresponding cavity. 7. The prolific injection mold of claim 1, wherein the number of cavities is four.