Double-color injection mold

Abstract

The utility model relates to a double-color injection mold which comprises a bottom plate, a motor is fixedly connected in the bottom plate, the output end of the motor is fixedly connected with a turntable, the top of the turntable is fixedly connected with two lower molds, and cooling mechanisms are arranged in the lower molds; the cooling mechanism comprises a circulating pump, a placing groove is formed in one side of the top of the rotating disc, a water tank is fixedly connected to the interior of the placing groove, a refrigerating machine is fixedly connected to the interior of the water tank, and a water outlet pipe is fixedly connected to the left end of the top of the water tank. Due to the fact that the water outlet pipe, the circulating pump, the connecting pipe, the cold water pipe and the backflow pipe communicate with one another, the circulating pump is started, the cooling liquid circulates in the connecting pipe, the cold water pipe, the backflow pipe and the lower die in a circulating mode, material shaping and rapid cooling are facilitated, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a double-color injection mold. Background Art

[0002] Two-color injection molding refers to the process of injecting two different materials into the same mold, so that the molded parts are formed by two materials. Some of the two materials are different colors, and some are different in hardness and softness, thereby improving the aesthetics and assembly performance of the product.

[0003] After searching, a Chinese patent discloses a two-color injection mold (authorization announcement number CN218700740U). This patented technology injects the molten material into the movable mold and the fixed mold through the injection tube at the top of the fixed mold. After waiting for a period of time, the material cools and takes shape. Then the fixed mold moves up to separate the movable mold from the fixed mold, and the shaped material is located in the movable mold. Then the motor is started to make the baffle rotate around the fixed axis and cover the top of the movable mold to block the shaped material inside. This technology avoids the centrifugal force when the movable mold rotates and throws out the shaped material inside. At the same time, there is no need to reduce the rotation speed of the disc to avoid the material being thrown out.

[0004] In practical applications, this technology is equipped with a motor, which drives the baffle to block the exposed and already formed material inside the movable mold to prevent it from flying out. However, this technology requires waiting for the material to cool and form naturally. Since it takes a long time for the material to cool and form naturally, the processing efficiency is low. Therefore, a two-color injection mold is needed. Utility Model Content

[0005] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a two-color injection mold.

[0006] The technical solution of the utility model is as follows: a two-color injection mold, comprising a bottom plate, a motor is fixedly connected inside the bottom plate, a turntable is fixedly connected to the output end of the motor, two lower molds are fixedly connected to the top of the turntable, and a cooling mechanism is arranged inside the lower mold;

[0007] The cooling mechanism includes a circulating pump, a placement groove is provided on one side of the top of the turntable, a water tank is fixedly connected to the placement groove, a refrigerator is fixedly connected to the water tank, a water outlet pipe is fixedly connected to the left end of the top of the water tank, the bottom end of the water outlet pipe passes through the water tank and extends to the inside of the water tank, the end of the water outlet pipe away from the water tank is fixedly connected to the circulating pump, the left end of the circulating pump is fixedly connected to a connecting pipe, the end of the connecting pipe away from the circulating pump is fixedly connected to a cold water pipe, the bottom of the lower mold is provided with an installation groove, the cold water pipe is located inside the installation groove, the end of the cold water pipe away from the connecting pipe passes through the installation groove and is fixedly connected to a return pipe, the end of the return pipe away from the cold water pipe passes through the water tank and extends to the inside of the water tank.

[0008] As a preferred embodiment, a vertical frame is fixedly connected to the top of the bottom plate and the side away from the water tank, a hydraulic cylinder is fixedly connected to the interior of the vertical frame, a rectangular plate is fixedly connected to the output end of the hydraulic cylinder, two upper molds are fixedly connected to the bottom of the rectangular plate, and an injection nozzle is fixedly connected to one side of the top of each upper mold.

[0009] As a preferred embodiment, a water injection pipe is fixedly connected to the top of the water tank, a pipe cover is threadedly connected to the top of the water injection pipe, and the bottom of the water injection pipe passes through the water tank and extends to the interior of the water tank.

[0010] As a preferred embodiment, a water changing pipe is fixedly connected to the front side of the water tank, and an electric valve is fixedly connected to the outer side of the water changing pipe.

[0011] As a preferred embodiment, the four bottom corners of the bottom plate are fixedly connected with brackets, and the bottom of the bracket is fixedly connected with a base.

[0012] As a preferred implementation, the motor, circulating pump, hydraulic cylinder electric valve and refrigerator are all electrically connected to an external controller.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] By starting the refrigerator, the refrigerator cools the coolant inside the water tank. Since the outlet pipe, the circulation pump, the connecting pipe, the cold water pipe, and the return pipe are interconnected, the circulation pump is started to circulate the coolant inside the connecting pipe, the cold water pipe, the return pipe, and the lower mold, which is beneficial to quickly cool the material and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural stereoscopic diagram of a two-color injection mold is provided for the utility model;

[0016] Figure 2A partial structural decomposition diagram of a two-color injection mold is provided for the utility model;

[0017] Figure 3 A partial three-dimensional schematic diagram of the structure of a two-color injection mold is provided for the utility model;

[0018] Figure 4 A partial three-dimensional schematic diagram of the structure of a two-color injection mold is provided for the utility model;

[0019] Figure 5 The utility model provides a partial three-dimensional schematic diagram of the structure of a two-color injection mold.

[0020] Legend: 1. Bottom plate; 2. Stand; 3. Hydraulic cylinder; 4. Injection nozzle; 5. Cooling mechanism; 501. Circulation pump; 502. Water outlet pipe; 503. Cold water pipe; 504. Return pipe; 505. Refrigerator; 506. Mounting groove; 507. Water tank; 508. Connecting pipe; 6. Rectangular plate; 7. Bracket; 8. Base; 9. Turntable; 10. Water exchange pipe; 11. Placement groove; 12. Motor; 13. Upper mold; 14. Lower mold; 15. Pipe cover; 16. Water injection pipe; 17. Electric valve. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: comprising a bottom plate 1, a motor 12 is fixedly connected inside the bottom plate 1, a turntable 9 is fixedly connected to the output end of the motor 12, the motor 12 is conducive to driving the turntable 9 to rotate, so as to exchange the positions of two lower molds 14 for different injection molding, the top of the turntable 9 is fixedly connected to two lower molds 14, and a cooling mechanism 5 is arranged inside the lower mold 14;

[0023] The cooling mechanism 5 includes a circulation pump 501, a placement groove 11 is provided on one side of the top of the turntable 9, a water tank 507 is fixedly connected to the inside of the placement groove 11, a refrigerator 505 is fixedly connected to the inside of the water tank 507, and the refrigerator 505 is conducive to cooling the coolant, a water outlet pipe 502 is fixedly connected to the left end of the top of the water tank 507, the bottom end of the water outlet pipe 502 passes through the water tank 507 and extends to the inside of the water tank 507, and the end of the water outlet pipe 502 away from the water tank 507 is fixedly connected to the circulation pump 501, and the circulation The left end of the pump 501 is fixedly connected to a connecting pipe 508, and the end of the connecting pipe 508 away from the circulating pump 501 is fixedly connected to a cold water pipe 503. The cold water pipes 503 are designed in multiple rows. An installation groove 506 is provided at the bottom of the lower mold 14. The cold water pipe 503 is located inside the installation groove 506. The end of the cold water pipe 503 away from the connecting pipe 508 passes through the installation groove 506 and is fixedly connected to a return pipe 504. The end of the return pipe 504 away from the cold water pipe 503 passes through the water tank 507 and extends to the inside of the water tank 507.

[0024] In this embodiment, by starting the refrigerator 505, the refrigerator 505 cools the coolant inside the water tank 507. Since the outlet pipe 502, the circulation pump 501, the connecting pipe 508, the cold water pipe 503, and the return pipe 504 are interconnected, the circulation pump 501 is started to allow the coolant to circulate inside the connecting pipe 508, the cold water pipe 503, the return pipe 504, and the lower mold 14, which is beneficial to quickly cool the material and improve the processing efficiency.

[0025] Furthermore, a stand 2 is fixedly connected to the top of the base plate 1 and the side away from the water tank 507, a hydraulic cylinder 3 is fixedly connected to the interior of the stand 2, a rectangular plate 6 is fixedly connected to the output end of the hydraulic cylinder 3, two upper molds 13 are fixedly connected to the bottom of the rectangular plate 6, and an injection nozzle 4 is fixedly connected to one side of the top of the upper mold 13, which facilitates the upper mold 13 to be separated from the top of the lower mold 14 through the hydraulic cylinder 3.

[0026] Furthermore, a water injection pipe 16 is fixedly connected to the top of the water tank 507, a pipe cover 15 is threadedly connected to the top of the water injection pipe 16, and the bottom of the water injection pipe 16 passes through the water tank 507 and extends to the interior of the water tank 507. By rotating the pipe cover 15, it is convenient to deliver the coolant to the interior of the water tank 507 through the water injection pipe 16.

[0027] Furthermore, a water changing pipe 10 is fixedly connected to the front side of the water tank 507 , and an electric valve 17 is fixedly connected to the outer side of the water changing pipe 10 . Opening the electric valve 17 facilitates replacement of the coolant inside the water tank 507 .

[0028] Furthermore, brackets 7 are fixedly connected to the four corners of the bottom of the bottom plate 1, and a base 8 is fixedly connected to the bottom of the bracket 7, which is conducive to stable support of the device.

[0029] Furthermore, the motor 12 , the circulation pump 501 , the electric valve 17 of the hydraulic cylinder 3 and the refrigerator 505 are all electrically connected to the external controller, which is conducive to rapid control of the circulation pump 501 , the electric valve 17 of the hydraulic cylinder 3 and the refrigerator 505 .

[0030] Working principle:

[0031] like Figure 1-Figure 5 As shown, when in use, by starting the refrigerator 505, the refrigerator 505 cools the coolant inside the water tank 507. Since the outlet pipe 502, the circulation pump 501, the connecting pipe 508, the cold water pipe 503, and the return pipe 504 are interconnected, the circulation pump 501 is started to allow the coolant to circulate inside the connecting pipe 508, the cold water pipe 503, the return pipe 504, and the lower mold 14, which is beneficial to quickly cool the material and improve the processing efficiency.

[0032] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A two-color injection mold, comprising a base plate (1), characterized in that: A motor (12) is fixedly connected inside the bottom plate (1), a rotating disk (9) is fixedly connected to the output end of the motor (12), two lower molds (14) are fixedly connected to the top of the rotating disk (9), and a cooling mechanism (5) is provided inside the lower mold (14); The cooling mechanism (5) comprises a circulating pump (501); a placement groove (11) is provided on one side of the top of the turntable (9); a water tank (507) is fixedly connected to the interior of the placement groove (11); a refrigerator (505) is fixedly connected to the interior of the water tank (507); a water outlet pipe (502) is fixedly connected to the left end of the top of the water tank (507); the bottom end of the water outlet pipe (502) passes through the water tank (507) and extends to the interior of the water tank (507); the end of the water outlet pipe (502) away from the water tank (507) is fixedly connected to the circulating pump (501); and the circulating pump The left end of (501) is fixedly connected with a connecting pipe (508), and the end of the connecting pipe (508) away from the circulation pump (501) is fixedly connected with a cold water pipe (503). The bottom of the lower mold (14) is provided with a mounting groove (506), and the cold water pipe (503) is located inside the mounting groove (506). The end of the cold water pipe (503) away from the connecting pipe (508) passes through the mounting groove (506) and is fixedly connected with a return pipe (504). The end of the return pipe (504) away from the cold water pipe (503) passes through the water tank (507) and extends to the inside of the water tank (507).

2. A two-color injection mold according to claim 1, characterized in that: A stand (2) is fixedly connected to the top of the bottom plate (1) and on a side away from the water tank (507); a hydraulic cylinder (3) is fixedly connected to the interior of the stand (2); a rectangular plate (6) is fixedly connected to the output end of the hydraulic cylinder (3); two upper molds (13) are fixedly connected to the bottom of the rectangular plate (6); and an injection nozzle (4) is fixedly connected to one side of the top of each of the upper molds (13).

3. A two-color injection mold according to claim 1, characterized in that: The top of the water tank (507) is fixedly connected to a water injection pipe (16), the top of the water injection pipe (16) is threadedly connected to a pipe cover (15), and the bottom of the water injection pipe (16) passes through the water tank (507) and extends to the interior of the water tank (507).

4. A two-color injection mold according to claim 1, characterized in that: A water changing pipe (10) is fixedly connected to the front side of the water tank (507), and an electric valve (17) is fixedly connected to the outer side of the water changing pipe (10).

5. A two-color injection mold according to claim 1, characterized in that: The four bottom corners of the bottom plate (1) are fixedly connected to brackets (7), and the bottom of the bracket (7) is fixedly connected to a base (8).

6. A two-color injection mold according to claim 1, characterized in that: The motor (12), the circulating pump (501), the hydraulic cylinder (3), the electric valve (17) and the refrigerator (505) are all electrically connected to an external controller.

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