Double-color injection mold

Abstract

The utility model provides a double-color injection mold which comprises a base, lower molds are fixed on the base, a movable seat is movably mounted between the lower molds, a movable mold is fixed at the top of the movable seat, the movable mold is movably mounted at the top of the lower molds, a fixed groove is formed in the base, a fixed seat is movably mounted in the fixed groove, and the movable seat is movably mounted in the fixed groove. And the fixed seat is movably installed at the bottom of the movable seat, an upper mold is movably installed at the top of the movable mold, a fixed block is fixed to the side of the upper mold, and a rotating pipe is movably installed on the fixed block. According to the double-color injection mold, when the double-color injection mold is used, the upper mold ascends and moves to enable the movable mold to quickly enter the top of the lower mold, the lower mold and the movable mold are matched to complete double-color injection, and when the lower mold is in a fixed state, the mold model moves in the lower mold to cause displacement.

Description

Technical Field

[0001] This utility model relates to the field of injection mold equipment, specifically a two-color injection mold. Background Technology

[0002] Medical products contain a large number of plastic products. During the processing of medical products, injection molds are used to complete the molding process. Some injection molded parts require the use of two-color injection molds. These injection molds need to reserve space for secondary feeding. After the product of one color is injection molded, the finished product in the mold cavity is ejected. The finished product is then manually placed on another set of molds for secondary molding, which makes the operation efficiency of injection molding low.

[0003] According to the patent document CN208197429U, a two-color injection mold includes a mold base, a turntable, and two fixed mold cores fixed on the mold base. One of the fixed mold cores is called the first fixed mold core, and the other is called the second fixed mold core. Each fixed mold core has a fixed mold cavity, and each fixed mold core is provided with a fixed mold ejector pin for ejecting the injection molded product in the fixed mold cavity forward. In use, the turntable drives the moving mold and the first color semi-finished product to rotate 180 degrees to close with the second color fixed mold, and inserts are used to adjust the second color cavity, which can improve the efficiency of two-color injection molding. However, although the above-mentioned technical solution realizes two-color injection molding, it requires reciprocating rotation of the mold during use, which makes it impossible to quickly adjust the injection state, resulting in inconvenience during use. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a two-color injection mold to solve the problems mentioned in the background technology. The utility model has a novel structure. When in use, the upward movement of the upper mold causes the moving mold to quickly enter the top of the lower mold. The lower mold and the moving mold cooperate to complete the two-color injection molding. The displacement caused by the movement of the mold model in the lower mold in the fixed state.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a two-color injection mold, comprising a base, a lower mold fixed on the base, a movable seat movably mounted between the lower molds, a movable mold fixed on the top of the movable seat, the movable mold movably mounted on the top of the lower mold, a fixing groove on the base, a fixing seat movably mounted inside the fixing groove, the fixing seat movably mounted on the bottom of the movable seat, an upper mold movably mounted on the top of the movable mold, a fixing block fixed to the side of the upper mold, and a rotating tube movably mounted on the fixing block.

[0006] Furthermore, the rotating tube is mounted on the fixed block via a bearing, and one end of the rotating tube has a threaded hole, inside which a threaded column is rotatably installed.

[0007] Furthermore, a support tube is fixed to one end of the threaded column, and a fixing tube is movably installed inside the support tube, with one end of the fixing tube fixed to the base.

[0008] Furthermore, a lifting mechanism is fixedly installed inside the fixed tube, one end of which is in movable contact with the support tube, and a limit block is fixed on the inner wall of the support tube.

[0009] Furthermore, a limiting groove is opened on the side of the fixed tube, and the limiting block is movably installed inside the limiting groove.

[0010] Furthermore, a sliding groove is formed on the inner wall of the fixing groove, and a slider is movably installed inside the sliding groove. One end of the slider is fixed to the fixing seat, and a reset mechanism is fixed between the slider and the sliding groove.

[0011] Furthermore, the fixed base has a slot, and a support mechanism is fixed inside the slot. One end of the support mechanism is fixed with a protrusion, and one end of the protrusion is fixed to the bottom of the movable base.

[0012] Furthermore, the upper mold has an injection port at its top, the moving mold has a connecting cavity and a positioning hole inside, a positioning pin is movably installed inside the positioning hole, one end of the positioning pin is fixed to the upper mold, and the lower mold has a forming cavity inside, which cooperates with the connecting cavity.

[0013] The beneficial effects of this utility model are:

[0014] 1. In use, the upper mold moves upward, causing the moving mold to quickly enter the top of the lower mold. The lower mold and the moving mold cooperate to complete the two-color injection molding. The displacement caused by the movement of the mold model in the lower mold when the lower mold is in a fixed state.

[0015] 2. In this two-color injection mold, when the upper mold and the lower mold are in contact, the moving mold positions the upper mold and the lower mold from the side, providing support between the upper mold and the lower mold and avoiding the impact caused by misalignment between the upper mold and the lower mold. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the two-color injection mold of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the two-color injection mold of this utility model after the moving mold is separated;

[0018] Figure 3 This is a schematic diagram of the structure of the fixing base of the two-color injection mold of this utility model;

[0019] Figure 4 This is a side sectional view of the base of the two-color injection mold of this utility model;

[0020] In the diagram: 1. Base; 2. Fixing groove; 3. Fixing seat; 4. Lower mold; 5. Movable seat; 6. Moving mold; 7. Upper mold; 8. Fixing block; 9. Injection port; 10. Rotating tube; 11. Support tube; 12. Fixing tube; 13. Limiting groove; 14. Connecting cavity; 15. Positioning hole; 16. Slot; 17. Support mechanism; 18. Protrusion; 19. Slider; 20. Reset mechanism; 21. Molding cavity; 22. Bearing; 23. Threaded hole; 24. Threaded column; 25. Limiting block; 26. Lifting mechanism. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a two-color injection mold, including a base 1, a lower mold 4 fixed on the base 1, a movable seat 5 movably installed between the lower molds 4, a movable mold 6 fixed on the top of the movable seat 5, the movable mold 6 movably installed on the top of the lower mold 4, a fixing groove 2 opened on the base 1, a fixing seat 3 movably installed inside the fixing groove 2, the fixing seat 3 movably installed at the bottom of the movable seat 5, an upper mold 7 movably installed on the top of the movable mold 6, a fixing block 8 fixed on the side of the upper mold 7, a rotating tube 10 movably installed on the fixing block 8, the rotating tube 10 being installed on the fixing block 8 via a bearing 22, a threaded hole 23 opened at one end of the rotating tube 10, a threaded post 24 rotatably installed inside the threaded hole 23, the threaded post 24 cooperating with the threaded hole 23 to limit the upper mold 7, and the upper mold 7 can be easily disassembled later by the cooperation of the threaded post 24 and the threaded hole 23.

[0023] In this embodiment, a support tube 11 is fixed to one end of the threaded column 24. A fixing tube 12 is movably installed inside the support tube 11. One end of the fixing tube 12 is fixed to the base 1. A lifting mechanism 26 is fixedly installed inside the fixing tube 12. One end of the lifting mechanism 26 is in movable contact with the support tube 11. A limit block 25 is fixed on the inner wall of the support tube 11. A limit groove 13 is opened on the side of the fixing tube 12. The limit block 25 is movably installed inside the limit groove 13. The lifting mechanism 26 is a linear reciprocating electric push rod. The lifting mechanism 26 pushes the support tube 11 to move up and down.

[0024] In this embodiment, a sliding groove is formed on the inner wall of the fixed groove 2, and a slider 19 is movably installed inside the sliding groove. One end of the slider 19 is fixed to the fixed seat 3. A reset mechanism 20 is fixed between the slider 19 and the sliding groove. A slot 16 is formed on the fixed seat 3, and a support mechanism 17 is fixed inside the slot 16. A protrusion 18 is fixed to one end of the support mechanism 17, and one end of the protrusion 18 is fixed to the bottom of the movable seat 5. An injection port 9 is formed on the top of the upper mold 7. A connecting cavity 14 and a positioning hole 15 are formed inside the movable mold 6. A positioning pin is movably installed inside the positioning hole 15, and one end of the positioning pin is fixed to the upper mold 7. A forming cavity 21 is formed inside the lower mold 4, and the forming cavity 21 cooperates with the connecting cavity 14. Both the support mechanism 17 and the reset mechanism 20 are spring structures. The support mechanism 17 pushes the fixed seat 3 into the interior of the fixed groove 2, which facilitates the later movement of the movable mold 6 into the top of the lower mold 4.

[0025] When the device is in use, the moving mold 6 slides out from the top of the lower mold 4. After the moving mold 6 slides out, the lifting mechanism 26 loses support for the support tube 11. Under the gravity of the upper mold 7, the support tube 11 slides downward on the fixed tube 12. After the upper mold 7 slides, the injection port 9 enters to the top of the molding cavity 21. The first color material enters through the injection port 9 to fill the molding cavity 21, completing the initial molding of the product. After the material inside the molding cavity 21 is molded, the lifting mechanism 26 is activated to push the support tube 11 upward. The rotating tube 10 pushes the upper mold 7 to separate from the lower mold 4. When the gap between the upper mold 7 and the lower mold 4 allows the moving mold 6 to pass through, the reset mechanism... 20 and support mechanism 17 respectively push the fixed seat 3 into the fixed groove 2 for positioning. Under the push of support mechanism 17, movable seat 5 pushes moving mold 6 into the top of lower mold 4, and then the upper mold 7 descends again. Injection port 9 cooperates with the top of connecting cavity 14, and bottom of connecting cavity 14 cooperates with top of molding cavity 21. The second color material is filled into the connecting cavity 14 and molding cavity 21 through injection port 9 to complete the two-color injection molding. After injection molding is completed, rotating tube 10 rotates on support tube 11, and threaded column 24 and threaded hole 23 separate. After separation, it is convenient to disassemble the upper mold 7 as a whole and use the plate for later cleaning.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A two-color injection mold, comprising a base (1), characterized in that: A lower mold (4) is fixed on the base (1). A movable seat (5) is movably installed between the lower molds (4). A movable mold (6) is fixed on the top of the movable seat (5). The movable mold (6) is movably installed on the top of the lower mold (4). A fixing groove (2) is opened on the base (1). A fixing seat (3) is movably installed inside the fixing groove (2). The fixing seat (3) is movably installed on the bottom of the movable seat (5). An upper mold (7) is movably installed on the top of the movable mold (6). A fixing block (8) is fixed on the side of the upper mold (7). A rotating tube (10) is movably installed on the fixing block (8).

2. The two-color injection mold according to claim 1, characterized in that: The rotating tube (10) is mounted on the fixed block (8) via a bearing (22). One end of the rotating tube (10) has a threaded hole (23), and a threaded column (24) is rotatably installed inside the threaded hole (23).

3. The two-color injection mold according to claim 2, characterized in that: One end of the threaded column (24) is fixed with a support tube (11), and a fixing tube (12) is movably installed inside the support tube (11). One end of the fixing tube (12) is fixed on the base (1).

4. The two-color injection mold according to claim 3, characterized in that: A lifting mechanism (26) is fixedly installed inside the fixed tube (12). One end of the lifting mechanism (26) is in contact with the support tube (11). A limit block (25) is fixed on the inner wall of the support tube (11).

5. The two-color injection mold according to claim 4, characterized in that: The fixed tube (12) has a limiting groove (13) on its side, and the limiting block (25) is movably installed inside the limiting groove (13).

6. The two-color injection mold according to claim 1, characterized in that: The inner wall of the fixed groove (2) has a sliding groove, and a slider (19) is movably installed inside the sliding groove. One end of the slider (19) is fixed on the fixed seat (3), and a reset mechanism (20) is fixed between the slider (19) and the sliding groove.

7. The two-color injection mold according to claim 1, characterized in that: The fixed seat (3) has a slot (16) and a support mechanism (17) is fixed inside the slot (16). One end of the support mechanism (17) is fixed with a protrusion (18) and one end of the protrusion (18) is fixed to the bottom of the movable seat (5).

8. The two-color injection mold according to claim 1, characterized in that: The upper mold (7) has an injection port (9) at its top. The moving mold (6) has a connecting cavity (14) and a positioning hole (15) inside. A positioning pin is movably installed inside the positioning hole (15). One end of the positioning pin is fixed on the upper mold (7). The lower mold (4) has a forming cavity (21) inside. The forming cavity (21) cooperates with the connecting cavity (14).

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