Multi-color plastic mold structure

Abstract

The utility model discloses a multicolor plastic mould structure, which particularly relates to the field of plastic production, and comprises a bottom plate, and an injection device is clamped in a placing hole; the injection device comprises an injection gun barrel fixedly arranged in the placement hole, a screw is sleeved with the injection gun barrel, a connecting rod is fixedly connected to one side of the screw, a movable box is arranged on the outer side of the connecting rod, a motor is fixedly connected to one end of the connecting rod, a plurality of feeding ports are formed in the top of the injection gun barrel, and a plurality of heaters are arranged on the left sides of the feeding ports; the heater is fixedly connected to the outer side of the injection gun barrel. By arranging the injection device, compared with the prior art, raw materials of different colors are laid and melted in the injection gun barrel, the problems that the colors are not fused and are excessively abrupt are solved, the raw materials of different colors are fed into the injection gun barrel through the hopper to be evenly laid and melted under the action of the heater, and then the raw materials of different colors are injected into the injection gun barrel through the motor. And the connecting rod reciprocates in the movable box so as to drive the screw rod to move and push the raw materials into the mold.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic production, and more specifically, to a multi-color plastic mold structure. Background Art

[0002] A plastic mold is the abbreviation of a combined mold used for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding. The coordinated changes of the mold's convex and concave molds and the auxiliary molding system can process a series of plastic parts of different shapes and sizes. The existing multi-color plastic molds are divided into two categories. One is to use multiple layers of materials of different colors and cover them with different thicknesses so that multiple colors can appear on the surface of the product. The other is to inject materials of multiple colors to fill the space between the convex and concave molds and then take them out.

[0003] However, in actual use, the above-mentioned plastic mold has the following specific problems:

[0004] Not only does it require precise control of the thickness of the film material, but it also requires multiple processing;

[0005] Since the material comes into contact only after being injected into the gap between the male and female molds, the products produced by this method have distinct color intervals, unnatural color fusion, and abrupt color transitions. Utility Model Content

[0006] In order to overcome the above defects of the prior art, the utility model provides a multi-color plastic mold structure to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A multi-color plastic mold structure, comprising a bottom plate, a first support plate fixedly connected to the top of the bottom plate, a second support plate provided on one side of the first support plate, a third support plate provided on one side of the second support plate, the second support plate and the third support plate both being fixedly connected to the bottom plate, a placement hole provided on one side of the third support plate, an injection device being clamped in the placement hole;

[0009] The injection device includes an injection gun barrel fixedly arranged inside the placement hole, a screw is sleeved inside the injection gun barrel, a non-return valve is fixedly arranged on the outside of the screw, a connecting rod is fixedly connected to one side of the screw, a movable box is arranged on the outside of the connecting rod, through holes are opened on both sides of the movable box, the connecting rod passes through the through holes, one end of the connecting rod is fixedly connected to a motor, a plurality of feed ports are opened on the top of the injection gun barrel, a hopper is clamped in the feed port, a plurality of heaters are arranged on the left side of the feed port, and the heater is fixedly connected to the outside of the injection gun barrel.

[0010] As a further description of the above technical solution: a die is provided on the other side of the injection gun barrel, the die is fixedly connected to the top of the second support plate, a die groove is opened on one side of the die, and an injection hole is opened on the other side of the die.

[0011] As a further description of the above technical solution: a clamping device is provided on one side of the die groove, and the clamping device includes a fixed plate fixedly connected to the top of the first support plate, and an extension block is fixedly connected to one side of the fixed plate.

[0012] As a further description of the above technical solution: a plurality of electric telescopic rods are arranged on the outside of the extension block, the electric telescopic rods are fixedly connected to the surface of the fixed plate, a convex module is fixedly connected to one side of the electric telescopic rod, and a demoulding groove is opened on one side of the convex module.

[0013] As a further description of the above technical solution: a demoulding device is fixedly provided in the demoulding groove, and the demoulding device includes a demoulding rod sleeved in the demoulding groove.

[0014] As a further description of the above technical solution: one side of the demoulding rod is fixedly connected to a demoulding plate, one side of the demoulding plate is fixedly provided with a plurality of springs, and one side of the springs is fixedly connected to the surface of the convex module.

[0015] As a further description of the above technical solution: the connecting rod is shaped as a cross, one side of the third support plate is fixedly connected to a support plate, and the movable box and the motor are placed on the top surface of the support plate.

[0016] Technical effects and advantages of the utility model:

[0017] 1. By setting up an injection device, compared with the prior art, raw materials of different colors are laid and melted in the injection barrel. Raw materials of different colors are fed into the injection barrel through a hopper and laid evenly, and melted under the action of a heater. During the melting process, the colors are evenly blended and the transition is natural. Then, under the action of a motor, the connecting rod reciprocates in the movable box, thereby driving the screw to move and push the raw materials into the mold, solving the problem of non-blending colors and abrupt color transitions.

[0018] 2. By setting up a mold clamping device, compared with the existing technology, the production rate is accelerated. Under the action of the electric telescopic rod, the male module is pushed toward the female mold. After the mold is clamped, injection molding is performed through the injection device. After the injection molding is completed, waiting for cooling, the electric telescopic rod is reset again, driving the male mold and the mold to leave the female mold. During this process, the stripping plate is supported by the extension block, and the stripping rod extends out of the male mold to push the mold out of the male mold to complete the demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the overall back structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the injection device of the utility model.

[0023] Figure 5 It is a schematic structural diagram of the mold clamping device of the utility model.

[0024] Figure 6 It is a schematic diagram of the structure of the bottom plate part of the utility model.

[0025] The accompanying drawings are marked as follows: 1. bottom plate; 2. first support plate; 3. second support plate; 4. third support plate; 5. placement hole; 6. injection gun barrel; 7. screw; 8. check valve; 9. connecting rod; 10. movable box; 11. through hole; 12. motor; 13. feed inlet; 14. hopper; 15. heater; 16. die; 17. die groove; 18. injection hole; 19. fixed plate; 20. extension block; 21. electric telescopic rod; 22. convex module; 23. demoulding groove; 24. demoulding rod; 25. demoulding plate; 26. spring; 27. support plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The embodiment of the present application discloses a multi-color plastic mold structure, comprising a bottom plate 1, a first support plate 2 is fixedly connected to the top of the bottom plate 1, a second support plate 3 is provided on one side of the first support plate 2, a third support plate 4 is provided on one side of the second support plate 3, the second support plate 3 and the third support plate 4 are both fixedly connected to the bottom plate 1, a placement hole 5 is opened on one side of the third support plate 4, and an injection device is clamped in the placement hole 5;

[0028] The injection device includes an injection barrel 6 fixedly arranged inside the placement hole 5, a screw 7 is sleeved inside the injection barrel 6, a non-return valve 8 is fixedly arranged on the outside of the screw 7, a connecting rod 9 is fixedly connected to one side of the screw 7, a movable box 10 is arranged on the outside of the connecting rod 9, through holes 11 are opened on both sides of the movable box 10, the connecting rod 9 passes through the through holes 11, a motor 12 is fixedly connected to one end of the connecting rod 9, a plurality of feed ports 13 are opened on the top of the injection barrel 6, a hopper 14 is clamped in the feed port 13, a plurality of heaters 15 are arranged on the left side of the feed port 13, the heater 15 is fixedly connected to the outside of the injection barrel 6, the heater 15 is used to melt the injection molding raw materials, and the hopper 14 is used to inject raw materials of different colors into the injection barrel 6.

[0029] Reference Figure 3 As shown, a die 16 is provided on the other side of the injection gun barrel 6, and the die 16 is fixedly connected to the top of the second support plate 3. A die groove 17 is provided on one side of the die 16, and an injection hole 18 is provided on the other side of the die 16. The second support plate 3 is used to fix the die 16, and the injection port is convenient for injection molding.

[0030] Reference Figure 5 As shown, a clamping device is provided on one side of the die groove 17 , and the clamping device includes a fixing plate 19 fixedly connected to the top of the first support plate 2 , and an extension block 20 is fixedly connected to one side of the fixing plate 19 , and the first support plate 2 is used to fix the fixing plate 19 .

[0031] Reference Figure 5 As shown, a plurality of electric telescopic rods 21 are provided on the outside of the extension block 20, and the electric telescopic rods 21 are fixedly connected to the surface of the fixed plate 19, and a convex module 22 is fixedly connected to one side of the electric telescopic rods 21, and a demoulding groove 23 is provided on one side of the convex module 22, and the electric telescopic rods 21 drive the movement of the convex mold.

[0032] Reference Figure 5 As shown, a demoulding device is fixedly provided in the demoulding groove 23, and the demoulding device includes a demoulding rod 24 sleeved in the demoulding groove 23, and the demoulding rod 24 is used to eject the mold from the punch.

[0033] Reference Figure 5 As shown, one side of the demoulding rod 24 is fixedly connected to a demoulding plate 25, one side of the demoulding plate 25 is fixedly provided with a plurality of springs 26, one side of the springs 26 is fixedly connected to the surface of the male module 22, and the springs 26 facilitate the resetting of the demoulding plate 25 after demoulding.

[0034] Reference Figure 6 As shown, the connecting rod 9 is shaped as a cross, a support plate 27 is fixedly connected to one side of the third support plate 4, the movable box 10 and the motor 12 are placed on the top surface of the support plate 27, and the support plate 27 is used to hold the movable box 10 and the motor 12.

[0035] The working principle of the utility model is as follows: when working, the mold clamping device is first started, and the electric telescopic rod 21 drives the male module 22 to move toward the female mold 16 until it is molded with the female mold 16, and then raw materials of different colors are injected into the hopper 14, and the raw materials enter the injection gun barrel 6, and the motor 12 is turned on. The motor 12 drives the connecting rod 9 to move, and then drives the screw 7 to move, and pushes the raw materials forward. The raw materials are melted under the heating of the heater 15, and then pushed to the injection port of the female mold 16 by the screw 7. The melted raw materials of different colors are accumulated in the mold until the mold is filled. After waiting for cooling, the electric telescopic rod 21 performs a reset movement. Under the action of the electric telescopic rod 21, the male module 22 approaches the fixed plate 19. In this process, the extension block 20 abuts against the stripping plate 25 to prevent the stripping plate 25 from following the male module 22 to retreat, and the stripping rod 24 extends out of the stripping groove 23 to push the mold out, so that it is separated from the male module 22, and the demolding is completed. Repeat this operation to process the required mold again.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-color plastic mold structure, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a first support plate (2), one side of the first support plate (2) is provided with a second support plate (3), one side of the second support plate (3) is provided with a third support plate (4), the second support plate (3) and the third support plate (4) are both fixedly connected to the bottom plate (1), one side of the third support plate (4) is provided with a placement hole (5), and an injection device is clamped in the placement hole (5); The injection device comprises an injection gun barrel (6) fixedly arranged inside the placement hole (5), a screw (7) is sleeved inside the injection gun barrel (6), a backflow prevention valve (8) is fixedly arranged on the outside of the screw (7), a connecting rod (9) is fixedly connected to one side of the screw (7), a movable box (10) is arranged on the outside of the connecting rod (9), through holes (11) are provided on both sides of the movable box (10), the connecting rod (9) passes through the through holes (11), one end of the connecting rod (9) is fixedly connected to a motor (12), a plurality of feed ports (13) are provided on the top of the injection gun barrel (6), a hopper (14) is clamped inside the feed port (13), a plurality of heaters (15) are arranged on the left side of the feed port (13), and the heater (15) is fixedly connected to the outside of the injection gun barrel (6); A concave mold (16) is provided on the other side of the injection gun barrel (6), and the concave mold (16) is fixedly connected to the top of the second support plate (3). A concave mold groove (17) is provided on one side of the concave mold (16), and an injection hole (18) is provided on the other side of the concave mold (16); A mold clamping device is provided on one side of the die groove (17), and the mold clamping device comprises a fixed plate (19) fixedly connected to the top of the first support plate (2), and an extension block (20) is fixedly connected to one side of the fixed plate (19); A plurality of electric telescopic rods (21) are arranged outside the extension block (20), the electric telescopic rods (21) are fixedly connected to the surface of the fixed plate (19), one side of the electric telescopic rods (21) is fixedly connected to a convex module (22), and one side of the convex module (22) is provided with a demoulding groove (23).

2. A multi-color plastic mold structure according to claim 1, characterized in that: A demoulding device is fixedly arranged in the demoulding groove (23), and the demoulding device comprises a demoulding rod (24) sleeved in the demoulding groove (23).

3. A multi-color plastic mold structure according to claim 2, characterized in that: One side of the demoulding rod (24) is fixedly connected to a demoulding plate (25), one side of the demoulding plate (25) is fixedly provided with a plurality of springs (26), and one side of the springs (26) is fixedly connected to the surface of the male module (22).

4. The multi-color plastic mold structure according to claim 1, characterized in that: The connecting rod (9) is shaped as a cross, one side of the third support plate (4) is fixedly connected to a support plate (27), and the movable box (10) and the motor (12) are placed on the top surface of the support plate (27).

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