Double colored plastic injection machine

Abstract

The utility model relates to a double colored plastic injection machine which comprises a rack, a rotating mechanism, two injection molding mechanisms, a workbench, a mold, a mold cylinder, a rack base and an injection molding fixing seat, the injection molding fixing seat and the rack base are fixedly arranged on the rack, the mold cylinder is fixedly arranged on the rack base, the two injection molding mechanisms are installed at the upper end of the injection molding fixing seat, and the rotating mechanism is installed on the workbench. The mold cylinder drives the workbench to move along the rack, the number of the molds is at least two, the molds comprise upper mold structures and lower mold structures, the upper mold structures are fixedly arranged at the lower end of the injection molding fixing seat, the injection molding mechanism is aligned with the upper mold structures, the lower mold structures are installed on the rotating mechanism, and the rotating mechanism drives the two lower mold structures to rotate between the two upper mold structures. According to the double-colored injection molding machine, a vertical structure is adopted, an injection molding structure is changed from a horizontal type to a vertical type, so that the occupied area of the injection molding machine is reduced, and the two molds are exchanged through the rotating mechanism, so that double-colored injection molding is carried out in one device.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and in particular to a two-color injection molding machine. Background Technology

[0002] Two-color or multi-color injection molding machines produce injection molded products by mixing the same raw material to form two or more different colors. After the first injection is completed by the plasticizing injection device and the mold, the molding die can be rotated and repositioned to inject different colored molten materials into the same molding die in two or more batches, thus obtaining two-color or multi-color injection molded products.

[0003] In the existing technology, processing equipment for one-time injection molding of two-color plastic products is already quite common. Two-color injection molding machines include two screw-type injection mechanisms. In the existing technology, the screw-type injection mechanisms are generally laid out in a plane. However, because the screw-type injection mechanisms are large in size, they occupy a lot of factory space, which reduces the number of injection molding machines that can be placed in the factory. Utility Model Content

[0004] The main purpose of this utility model is to provide a two-color injection molding machine to solve the above-mentioned technical problems. It is vertically arranged and can reduce the floor space occupied by the injection molding machine.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A two-color injection molding machine includes a frame, a rotating mechanism, an injection mechanism, a worktable, a mold, a mold cylinder, a frame base, and an injection fixing seat. The injection fixing seat and the frame base are fixed on the frame. The mold cylinder is fixed on the frame base. Two injection mechanisms are mounted on the upper end of the injection fixing seat. The rotating mechanism is mounted on the worktable. The mold cylinder drives the worktable to move along the frame. At least two molds are provided. Each mold includes an upper mold structure and a lower mold structure. The upper mold structure is fixed on the lower end of the injection fixing seat. The injection mechanism aligns with the upper mold structure. The lower mold structure is mounted on the rotating mechanism. The rotating mechanism drives the two lower mold structures to rotate between the two upper mold structures.

[0007] As a preferred technical solution, the injection molding mechanism includes an injection structure, a guide rod, an upper drive cylinder, a lower drive cylinder, an upper mounting base, and a lower mounting base. The guide rod is fixed on the injection molding base, and the upper and lower mounting bases move along the guide rod. The upper and lower drive cylinders are respectively mounted on the lower mounting base, with the output end of the upper drive cylinder mounted on the injection molding base and the output end of the lower drive cylinder mounted on the upper mounting base. The injection structure is mounted on the upper and lower mounting bases.

[0008] As a preferred technical solution, the injection molding structure includes a material tube, a screw structure, a nozzle, and a hopper. The hopper is connected to the material tube, the material tube is fixed on the lower mounting base, the screw structure is mounted on the upper mounting base, and the screw structure passes through the material tube.

[0009] As a preferred technical solution, the screw structure includes a screw motor, a screw, and a screw coupling. The screw motor is mounted on the upper mounting base through the screw coupling, the screw passes through the material tube, and the screw motor drives the screw to rotate through the screw coupling.

[0010] As a preferred technical solution, the rotating mechanism includes a turntable, a rotary motor, a rotary coupling, and a drive wheel. The rotary motor is mounted on the worktable via the rotary coupling, and the rotary motor drives the drive wheel to rotate via the rotary coupling. The turntable is rotatably mounted on the worktable, and a rack is provided on the side of the turntable, which meshes with the drive wheel.

[0011] The beneficial effects of this utility model are as follows: The above-mentioned two-color injection molding machine adopts a vertical structure, which changes the injection molding structure from horizontal to vertical, thereby reducing the floor space occupied by the injection molding machine. Furthermore, the two molds can be exchanged through a rotating mechanism to achieve two-color injection molding in one machine. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the two-color injection molding machine involved in this utility model;

[0013] Figure 2 This is a schematic diagram of the injection molding mechanism involved in this utility model;

[0014] Figure 3 This is a cross-sectional view of the injection molding mechanism involved in this utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] like Figure 1As shown, a two-color injection molding machine includes a frame 1, a rotating mechanism 7, injection mechanisms 8, a worktable 3, molds 6, a mold cylinder 5, a frame base 2, and an injection fixing seat 4. The injection fixing seat 4 and the frame base 2 are fixed on the frame 1. The mold cylinder 5 is fixed on the frame base 2. Two injection mechanisms 8 are installed on the upper end of the injection fixing seat 4. The rotating mechanism 8 is installed on the worktable 3. The mold cylinder 5 drives the worktable 3 to move along the frame 1 between the frame base 2 and the injection fixing seat 4. At least two molds 6 are provided. The mold 6 includes an upper mold structure 61 and a lower mold structure 62. The upper mold structure 61 is fixed on the lower end of the injection fixing seat 4. The injection mechanisms 8 are aligned with the upper mold structure 61. The lower mold structure 62 is installed on the rotating mechanism. 7. The rotating mechanism 7 drives two lower mold structures 62 to rotate between two upper mold structures 61. The two injection molding mechanisms 8 use two different colors of plastic granules for injection molding. After the two-color injection molding machine completes one injection, the mold cylinder 5 drives the worktable 3 to descend, so that the upper mold structure 61 and the lower mold structure 62 are separated, and the product after two-color injection molding is unloaded. Then the rotating mechanism 7 drives the rotation, so that the positions of the two upper mold structures 61 are interchanged, so that the product after one-color injection molding is transferred to the injection molding mechanism 8 for injection molding the other color. Then the mold cylinder 5 drives the worktable 3 to rise, so that the upper mold structure 61 and the lower mold structure 62 close the mold. The one-color injection molded product in one mold is subjected to two-color injection molding, and the other mold is subjected to one-color injection molding.

[0017] Please combine Figure 2 and Figure 3As shown, the injection molding mechanism 8 includes an injection molding structure 86, a guide rod 81, an upper drive cylinder 84, a lower drive cylinder 85, an upper mounting base 83, and a lower mounting base 82. The guide rod 81 is fixed on the injection molding fixed base 4. The upper mounting base 83 and the lower mounting base 82 move along the guide rod 81. The upper drive cylinder 84 and the lower drive cylinder 85 are respectively mounted on the lower mounting base 82. The output end of the upper drive cylinder 84 is mounted on the injection molding fixed base 4, and the output end of the lower drive cylinder 85 is mounted on the upper mounting base 83. The injection molding structure 86 is mounted on the upper mounting base 83 and the lower mounting base 82. The injection molding structure 86 includes a feed tube 861, a screw structure 864, a nozzle 862, and a hopper 863. The hopper 863 is connected to the feed tube. The feed tube 861 is fixed on the lower mounting base 82, and the screw structure 864 is mounted on the upper mounting base 83 and passes through the feed tube 861. The hopper 863 stores colored plastic granules and feeds them into the feed tube 861. The screw structure 864 is driven to rotate in the feed tube 861, and the colored plastic granules gradually melt and solidify upon heating in the feed tube 861. The molten material is extruded from the nozzle 862 into the mold 6 by the screw structure 864. The lower drive cylinder 85 drives the lower mounting seat 82 to rise along the guide rod 81 relative to the injection molding fixed seat 4, which can separate the injection molding structure 86 from the mold 6. The upper drive cylinder 84 drives the upper mounting seat 83 to move along the guide rod 81, thereby moving the upper mounting seat 83 relative to the lower mounting seat 82, separating the screw structure 864 from the material tube 861, and then performing maintenance on the screw structure 864. The screw structure 864 includes a screw motor 865, a screw 867, and a screw coupling 866. The screw motor 865 is mounted on the upper mounting seat 83 through the screw coupling 866. The screw 867 passes through the material tube 861. The screw motor 865 drives the screw 867 to rotate through the screw coupling 866, thereby driving the molten material to be conveyed to the nozzle 862.

[0018] Please continue to refer to this. Figure 1 As shown, the rotating mechanism 7 includes a turntable 71, a rotary motor 72, a rotary coupling 73, and a drive wheel 74. The rotary motor 72 is mounted on the worktable 3 via the rotary coupling 73. The rotary motor 72 drives the drive wheel 74 to rotate via the rotary coupling 73. The turntable 71 is rotatably mounted on the worktable 3. A rack 711 is provided on the side of the turntable 71. The rack 711 meshes with the drive wheel 74. The rotary motor 72 drives the drive wheel 74 to rotate via the rotary coupling 73, thereby driving the turntable 71 to rotate.

[0019] The embodiments described above are merely preferred examples of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this utility model should be included within the scope of this utility model patent application.

Claims

1. A two-color injection molding machine, characterized in that, The system includes a frame, a rotating mechanism, an injection molding mechanism, a worktable, a mold, a mold cylinder, a frame base, and an injection molding fixing seat. The injection molding fixing seat and the frame base are fixed to the frame. The mold cylinder is fixed to the frame base. Two injection molding mechanisms are mounted on the upper end of the injection molding fixing seat. The rotating mechanism is mounted on the worktable. The mold cylinder drives the worktable to move along the frame. At least two molds are provided. Each mold includes an upper mold structure and a lower mold structure. The upper mold structure is fixed to the lower end of the injection molding fixing seat. The injection molding mechanism aligns with the upper mold structure. The lower mold structure is mounted on the rotating mechanism. The rotating mechanism drives the two lower mold structures to rotate between the two upper mold structures.

2. The two-color injection molding machine according to claim 1, characterized in that, The injection molding mechanism includes an injection structure, a guide rod, an upper drive cylinder, a lower drive cylinder, an upper mounting base, and a lower mounting base. The guide rod is fixed on the injection molding base. The upper mounting base and the lower mounting base move along the guide rod. The upper drive cylinder and the lower drive cylinder are respectively mounted on the lower mounting base. The output end of the upper drive cylinder is mounted on the injection molding base, and the output end of the lower drive cylinder is mounted on the upper mounting base. The injection structure is mounted on the upper mounting base and the lower mounting base.

3. The two-color injection molding machine according to claim 2, characterized in that, The injection molding structure includes a material tube, a screw structure, a nozzle, and a hopper. The hopper is connected to the material tube, the material tube is fixed on the lower mounting base, and the screw structure is mounted on the upper mounting base and passes through the material tube.

4. The two-color injection molding machine according to claim 3, characterized in that, The screw structure includes a screw motor, a screw, and a screw coupling. The screw motor is mounted on the upper mounting base via the screw coupling. The screw passes through the material tube, and the screw motor drives the screw to rotate via the screw coupling.

5. The two-color injection molding machine according to claim 1, characterized in that, The rotating mechanism includes a turntable, a rotary motor, a rotary coupling, and a drive wheel. The rotary motor is mounted on the worktable via the rotary coupling and drives the drive wheel to rotate. The turntable is rotatably mounted on the worktable, and a rack is provided on the side of the turntable, which meshes with the drive wheel.

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