Multi-material common-mold injection molding device

Abstract

The utility model discloses a multi-material common-mode injection molding device. The multi-material common-mode injection molding device comprises an injection molding runner and a flow direction valve, the injection molding runner is designed in the injection molding device, comprises a main runner and a plurality of branch runners and is used for injection molding of mold liquid. The flow direction valve controls opening and closing of the injection molding flow channel through rotation, and the main flow channel can be controlled to be communicated with different branch flow channels through the flow direction valve. According to the technical scheme, the production state of the multi-material common-mode injection molding device can be switched under the condition that an upper mold and a lower mold are not needed, the development cost of the mold is greatly saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic processing, and particularly relates to a common mold injection device for different materials. Background Art

[0002] With the rapid development of social economy, all walks of life are constantly accelerating the pace of development to better meet the needs of production. Plastic products often require mold molding during the processing process. Among them, the injection molding production of two-material products generally requires the design of two sets of molds, and the production cycle is long. This device reduces the time for changing molds by combining two materials into a common mold, reduces the waiting time of the upper and lower molds of the injection molding machine, and reduces the cost of using molds, thereby shortening the product processing cycle and manufacturing cost. Utility Model Content

[0003] Purpose of the new model: In order to overcome the above shortcomings, the utility model provides a multi-material co-mold injection molding device. Its design is reasonable and can realize the switching of production status without stopping the machine to re-upload and re-download the mold, which greatly saves the mold development cost and improves production efficiency.

[0004] Technical solution: In order to achieve the above purpose, the utility model provides a multi-material co-mold injection molding device including an injection flow channel, which is designed inside the injection molding device and includes a main flow channel and multiple branch flow channels, and the injection flow channel is used to inject mold liquid; a flow valve, which controls the on-off of the injection flow channel by rotating, and the main flow channel can be controlled to be connected with different branch flow channels through the flow valve. Through the setting of the flow valve, multiple products can be designed into the same mold core.

[0005] Furthermore, the flow valve includes a discharge port and a plurality of feed ports; the feed port is connected to the main flow channel, and the discharge port is connected to the branch flow channel.

[0006] Furthermore, the runner includes a first runner and a second runner; when the discharge port is connected to the first runner and the second runner, they are in different production states. The design of multiple runners ensures that the injection molding of multiple materials will not interfere with each other, thereby improving product quality.

[0007] Furthermore, the discharge port is only connected to one branch channel at the same time.

[0008] Furthermore, the flow valve includes a front side, and an auxiliary rotating structure is designed on the front side, and the auxiliary rotating structure is used to realize the rotation of the flow valve so that the discharge port can be connected with different branch channels. By setting the auxiliary rotating structure, technicians can quickly switch the production state of the multi-material co-molding injection device.

[0009] Furthermore, the flow valve also includes a back side, on which a limiting groove is designed for fixing the position of the flow valve after rotation.

[0010] Furthermore, a positioning assembly is provided inside the multi-material co-molding injection device for clamping the flow valve. After the flow valve rotates, the positioning assembly cooperates with the limiting groove to clamp the flow valve.

[0011] Furthermore, the positioning component is a limiting glass bead.

[0012] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0013] 1. The multi-material co-mold injection molding device described in the utility model integrates the cavities of products made of different materials into one mold, thereby saving the development cost of the mold and increasing the service life and service life of the mold.

[0014] 2. The design of the flow valve described in the utility model enables the same product line to produce two products, reducing the number of people on the production line and saving labor costs.

[0015] 3. In the utility model, an auxiliary rotating structure is added to the flow valve, so that the technicians can quickly switch the production state of the injection molding machine, saving the time of upper and lower molds and greatly improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a multi-material co-molding injection molding device according to the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged schematic diagram;

[0018] Figure 3 It is a structural schematic diagram of the flow valve in the utility model;

[0019] Figure 4 It is the front view of the flow valve;

[0020] Figure 5 It is the back view of the flow valve;

[0021] Figure 6 It is another production state of the utility model. DETAILED DESCRIPTION

[0022] Now, with reference to the embodiments of the present application in detail, one or more examples of the embodiments of the present application are illustrated in the drawings. Each example is provided for the purpose of explaining the present application, but not for limiting the present application. In fact, it will be clear to those skilled in the art that various modifications and variations may be made in the present application without departing from the scope or spirit of the present application.

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] See also Figures 1 to 6 A multi-material co-mold injection device 1000 includes a flow valve 2 and an injection channel 1. The injection channel 1 is used for injection of mold liquid, and the flow valve 2 controls the opening and closing of the injection channel 1 by rotating.

[0025] Specifically, the multi-material co-molding injection molding device 1000 includes a cavity 4, the injection flow channel 1 includes a main flow channel 11, a first branch flow channel 121 and a second branch flow channel 122, and the flow valve 2 includes a discharge port 21 and a plurality of feed ports 22. The feed port 22 is connected to the main flow channel 11, the discharge port 21 is respectively connected to one end of the first branch flow channel 121 and the second branch flow channel 122, and the other end of the branch flow channel 12 is connected to the cavity 4. By rotating the flow valve 2, the discharge port 21 can be controlled to be connected to different branch flow channels 12 to achieve injection molding of different cavities 4, so that the co-molding injection molding device 1000 can switch to different production states. Figure 1 and Figure 6 As shown in FIG. 1 , the figure shows two different production states of the multi-material co-molding injection molding device 1000. When the co-molding injection molding device 1000 is in Figure 1 When the flow valve 2 rotates, the common mold injection device 1000 is in the state of Figure 6 In this state, the discharge port 21 is connected to the second branch channel 122, and another product is produced.

[0026] In addition, at the same time, the discharge port 21 is only connected to one branch channel 12, and further, at the same time, the main channel 11 is only connected to one branch channel 12, and the common mold injection device 1000 only produces products of one material.

[0027] Therefore, by designing multiple products on the same mold core and switching between different production states by rotating the flow valve 2, the service life and cycle of the mold are greatly improved, the development cost of the mold is saved, and the time cost of technicians is also saved, thereby greatly improving production efficiency.

[0028] Please continue to refer to Figure 3~Figure 5 The front side 23 of the flow valve 2 is designed with an auxiliary rotation structure 231, and the auxiliary rotation structure 231 is used to facilitate technicians to rotate the flow valve 2 to achieve rapid switching of production modes.

[0029] Specifically, in the embodiment of the utility model, the auxiliary rotating device is an inner hexagonal hole. When the co-molding injection molding device 1000 needs to switch the production state, the technician can use a hexagonal wrench to rotate the flow valve 2 to achieve rapid switching of the production state. Of course, this embodiment does not limit the auxiliary rotating structure 231. In other embodiments, the auxiliary rotating structure 231 can also be an inner triangular hole or an outer convex hexagonal structure, etc., as long as it does not affect the basic functions of the multi-material co-molding injection molding device 1000, and it is convenient for the technician to rotate the flow valve 2.

[0030] Please continue reading Figure 5 The back side 24 of the flow valve 2 is designed with a limiting groove 241. The co-molding injection molding device 1000 also includes a positioning component. After the flow valve 2 rotates, the limiting groove 241 can cooperate with the positioning component to prevent the flow valve 2 from being displaced during the production process. In this embodiment, the positioning component is a limiting glass bead 3. Of course, this embodiment does not limit the positioning component. In other embodiments, the positioning component can also be a positioning pin, as long as it can fix the position of the flow valve 2 and prevent the flow valve 2 from moving during the production process.

[0031] In this embodiment, the first branch channel 121 and the second branch channel 122 are respectively a POM material flow channel and a PP material flow channel. That is, when the multi-material co-molding injection molding device 1000 is in the first state, the product produced is a POM material product, and when the multi-material co-molding injection molding device 1000 is in the second state, the product produced is a PP material product. Of course, this embodiment does not limit the material of the product produced by the multi-material co-molding injection molding device 1000, and it can also be other materials, which will not be described in detail here.

[0032] Therefore, by setting the flow valve 2 in the multi-material co-mold injection molding device 1000, multiple products can be designed on the same mold core, which increases the service life of the mold and saves the design cost of the mold. At the same time, the flow valve 2 can realize the rapid switching of the production of multiple products by rotating, which can facilitate the technicians to rotate the flow valve 2, shorten the time of the co-mold injection molding device 1000 to open and close the mold and wait, greatly saving labor costs and improving production efficiency.

[0033] The working principle of a multi-material co-molding injection molding device 1000 described in this embodiment is as follows: first, rotate the flow valve 2 to connect the discharge port 21 with the branch channel 12 of the product to be produced, so as to realize the production of the first product. When it is necessary to switch the production state, the technician uses a wrench to cooperate with the auxiliary rotating structure 231 on the flow valve 2 and rotates the flow valve 2, and the limiting glass bead 3 fixes the position of the flow valve 2 after the movement. At this time, the discharge port 21 is aligned with another branch channel 12, the production state switching is completed, and the production of another product begins.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A multi-material co-molding injection device, characterized in that: include: An injection molding flow channel (1), the injection molding flow channel (1) being designed inside a common mold injection molding device (1000), the injection molding flow channel comprising a main flow channel (11) and a plurality of branch flow channels (12), the injection molding flow channel (1) being used for injection molding of mold liquid; A flow valve (2), wherein the flow valve (2) controls the on-off of the injection flow channel (1) by rotating, and the flow valve (2) can control the main flow channel (11) to be connected to different branch flow channels (12).

2. The multi-material co-molding injection molding device according to claim 1, characterized in that: The flow valve (2) comprises a discharge port (21) and a plurality of feed ports (22); The feed port (22) is connected to the main flow channel (11), and the discharge port (21) is connected to the branch flow channel (12).

3. The multi-material co-molding injection molding device according to claim 2, characterized in that: The flow channel (12) comprises a first flow channel (121) and a second flow channel (122); When the discharge port (21) is in communication with the first branch flow channel (121) and the second branch flow channel (122), they are in different production states.

4. The multi-material co-molding injection molding device according to claim 3, characterized in that: The discharge port (21) is connected to only one branch channel (12) at the same time.

5. The multi-material co-molding injection molding device according to claim 2, characterized in that: The flow valve (2) comprises a front face (23), and the front face (23) is provided with an auxiliary rotation structure (231). The auxiliary rotation structure (231) is used to realize the rotation of the flow valve (2), so that the discharge port (21) can be connected to different branch flow channels (12).

6. The multi-material co-molding injection molding device according to claim 5, characterized in that: The flow valve (2) further comprises a back side (24), and a limiting groove (241) is designed on the back side (24) for fixing the position of the flow valve (2) after rotation.

7. The multi-material co-molding injection molding device according to claim 1, characterized in that: A positioning component is arranged inside the multi-material co-molding injection device (1000) and is used to clamp the flow valve (2).

8. The multi-material co-molding injection molding device according to claim 7, characterized in that: The positioning component is a limiting glass bead (3).

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