EPS foam plastic mold

Abstract

The utility model provides an EPS (Expandable Polystyrene) foam plastic mold, which relates to the technical field of plastic molds, and comprises a U-shaped plate, a movable plate is arranged in the U-shaped plate, one end of the movable plate penetrates through and is in threaded connection with a screw rod, two ends of the screw rod penetrate through the U-shaped plate and are rotatably connected with bearings of the U-shaped plate, one end of the U-shaped plate is fixedly connected with a driving motor, and the other end of the U-shaped plate is fixedly connected with a motor. And the output end of the driving motor is fixedly connected with one end of a screw rod, mold grooves are symmetrically formed in the top of the moving plate, mold stripping holes are formed in the positions, close to the two ends, of the top of the U-shaped plate, and a convex hole is formed in the position, close to the center, of the top of the U-shaped plate. After foamed plastic is formed, the screw rod can be driven by the driving motor to rotate, the movable plate can be moved by the rotation of the screw rod, the formed foamed plastic can be moved to the mold stripping hole for demolding by the movement of the movable plate, and the device can be still in the foamed plastic forming and manufacturing process in the demolding process; and the effect of improving the foamed plastic forming and manufacturing efficiency can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to an EPS foam plastic mold. Background Art

[0002] EPS foam is made primarily of polystyrene resin with additives such as a foaming agent. It is the most commonly used cushioning material. It has a closed-cell structure, low water absorption, and excellent water resistance. However, EPS foam requires a mold during processing.

[0003] Existing foam plastic molds usually require manual demolding, and the demolding must be completed before the next production can proceed. The time period of the demolding process can easily affect the production efficiency of the foam plastic mold. Therefore, an EPS foam plastic mold is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the foam plastic mold usually needs to be demoulded manually and the next production can only be carried out after the demoulding is completed, and an EPS foam plastic mold is proposed.

[0005] The top of the U-shaped plate is provided with a mold groove, and the top of the U-shaped plate and the mold outlet are provided with a convex hole. The top of the U-shaped plate and the center are provided with a convex hole. The upper template is embedded in the convex hole. The top of the movable plate is fixedly connected to a fixing frame near the center. The top of the fixing frame is fixedly connected to a hydraulic cylinder. The output end of the hydraulic cylinder passes through the fixing frame and is fixedly connected to the top of the upper template. The interior of the movable plate is symmetrically provided with an L-shaped cavity, and a connecting cavity is connected between the two L-shaped cavities and near both ends.

[0006] Preferably, the bottom of the U-shaped plate and near the four corners are fixedly connected with support legs, and the bottoms of the support legs are fixedly connected with support blocks.

[0007] Preferably, a sliding rod passes through and is slidably connected to the other end of the movable plate, and both ends of the sliding rod are fixedly connected to the inner wall of the U-shaped plate.

[0008] Preferably, a lifting plate is provided inside the mold cavity, and an electric push rod is embedded in and fixedly connected to the bottom of the movable plate and located below the mold cavity, and the output end of the electric push rod is fixedly connected to the bottom of the lifting plate.

[0009] Preferably, the top surface of the upper template is fixed with and connected to a material injection pipe.

[0010] Preferably, the front and rear surfaces of the movable plate are both fixedly connected with injection pipes, and the injection pipes are communicated with the L-shaped cavity.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] 1. In the utility model, after the foam plastic is formed, the screw can be driven by the driving motor to rotate, and the screw rotation can move the movable plate. The movement of the movable plate can move the formed foam plastic to the demoulding hole for demoulding. During the demoulding process, the device can still be in the foam plastic molding process, which can improve the efficiency of the foam plastic molding process.

[0013] 2. In the present invention, cold water is poured into the L-shaped cavity through the injection pipe. At this time, the cold water can enter the other L-shaped cavity through the connecting cavity, and the cold water can be discharged from the other injection pipe, which can cool the molded foam plastic, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model proposes a three-dimensional diagram of the overall structure of an EPS foam plastic mold;

[0015] Figure 2 The utility model proposes a cross-sectional view of the overall structure of an EPS foam plastic mold;

[0016] Figure 3 The utility model provides a vertical cross-sectional view of the overall structure of an EPS foam plastic mold.

[0017] Legend: 1. U-shaped plate; 2. Support legs; 3. Support blocks; 4. Moving plate; 5. Screw; 6. Driving motor; 7. Sliding rod; 8. Die groove; 9. Ejection hole; 10. Convex hole; 11. Upper template; 12. Fixed frame; 13. Hydraulic cylinder; 14. L-shaped cavity; 15. Connecting cavity; 16. Lifting plate; 17. Electric push rod; 18. Injection pipe; 19. Liquid injection pipe. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1, as Figure 1-3 As shown, the utility model provides an EPS foam plastic mold, including a U-shaped plate 1, a movable plate 4 is provided inside the U-shaped plate 1, one end of the movable plate 4 passes through and is threadedly connected to a screw 5, both ends of the screw 5 pass through the U-shaped plate 1 and are rotatably connected to its bearing, one end of the U-shaped plate 1 is fixedly connected to a drive motor 6, the output end of the drive motor 6 is fixedly connected to one end of the screw 5, the top of the movable plate 4 is symmetrically provided with a mold groove 8, the top of the U-shaped plate 1 is provided with a mold hole 9 near both ends, the top of the U-shaped plate 1 is provided with a convex hole 10 near the center, an upper template 11 is embedded in the convex hole 10, the top of the movable plate 4 is fixedly connected to a fixed frame 12 near the center, the top of the fixed frame 12 is fixedly connected to a hydraulic cylinder 13, the output end of the hydraulic cylinder 13 passes through the fixed frame 12 and is fixedly connected to the top of the upper template 11, the interior of the movable plate 4 is symmetrically provided with an L-shaped cavity 14, and a connecting cavity 15 is connected between the two L-shaped cavities 14 and near both ends.

[0021] The effect achieved by the entire embodiment 1 is that a movable plate 4 is provided inside the U-shaped plate 1, one end of the movable plate 4 passes through and is threadedly connected with a screw 5, both ends of the screw 5 pass through the U-shaped plate 1 and are rotatably connected with its bearing, one end of the U-shaped plate 1 is fixedly connected to a drive motor 6, and the output end of the drive motor 6 is fixedly connected to one end of the screw 5, which can play the role of making the drive motor 6 drive the screw 5 to rotate, and the rotation of the screw 5 can drive the movable plate 4 to move, and mold grooves 8 are symmetrically opened on the top of the movable plate 4, and mold holes 9 are opened on the top and near both ends of the U-shaped plate 1, which can play the role of making the foam plastic formed in the mold groove 8 be ejected from the mold holes 9. A convex hole 10 is provided near the center, and an upper template 11 is embedded in the convex hole 10. A fixing frame 12 is fixedly connected to the top of the movable plate 4 and near the center. A hydraulic cylinder 13 is fixedly connected to the top of the fixing frame 12. The output end of the hydraulic cylinder 13 passes through the fixing frame 12 and is fixedly connected to the top of the upper template 11, so that the hydraulic cylinder 13 can push the upper template 11 down and embed it into the convex hole 10. L-shaped cavities 14 are symmetrically provided inside the movable plate 4, and a connecting cavity 15 is connected between the two L-shaped cavities 14 and near both ends, so that cold water flowing inside the L-shaped cavity 14 and the connecting cavity 15 can cool the foam plastic formed inside the die groove 8.

[0022] Example 2, as Figure 1-3As shown, the bottom of the U-shaped plate 1 and near the four corners are fixedly connected with support legs 2, and the bottoms of the support legs 2 are fixedly connected with support blocks 3; the other end of the movable plate 4 passes through and is slidably connected with a slide rod 7, and both ends of the slide rod 7 are fixedly connected to the inner wall of the U-shaped plate 1; a lifting plate 16 is provided inside the mold groove 8, and an electric push rod 17 is embedded and fixedly connected at the bottom of the movable plate 4 and located below the mold groove 8, and the output end of the electric push rod 17 is fixedly connected to the bottom of the lifting plate 16; the top surface of the upper mold plate 11 is fixed and connected with an injection pipe 18; the front and rear surfaces of the movable plate 4 are fixedly connected with an injection pipe 19, and the injection pipe 19 is connected to the L-shaped cavity 14.

[0023] The effect achieved by the entire embodiment 2 is that the bottom of the U-shaped plate 1 and near the four corners are fixedly connected with the support legs 2, and the bottoms of the support legs 2 are fixedly connected with the support blocks 3, which can support the bottom of the U-shaped plate 1; the other end of the movable plate 4 is penetrated and slidably connected with a slide rod 7, and both ends of the slide rod 7 are fixedly connected to the inner wall of the U-shaped plate 1, which can limit one end of the movable plate 4; a lifting plate 16 is provided through the inside of the mold groove 8, and the bottom of the movable plate 4 and the bottom of the movable plate 4 is embedded and fixedly connected with an electric push rod 17 located below the mold groove 8. The output end of the electric push rod 17 is fixedly connected to the bottom of the lifting plate 16, which can make the electric push rod 17 push the lifting plate 16 up and down; an injection pipe 18 is fixed and connected through the top surface of the upper template 11, which can achieve the effect of injection; an injection pipe 19 is fixedly connected through the front and rear surfaces of the movable plate 4, and the injection pipe 19 is connected to the L-shaped cavity 14, which can pour cold water from the injection pipe 19 into the inside of the L-shaped cavity 14.

[0024] Working principle: The upper template 11 is pushed into the convex hole 10 by the hydraulic cylinder 13. At this time, the injection pipe 18 injects the EPS foam plastic into the mold groove 8. When the EPS foam plastic is formed, cold water can be injected into the L-shaped cavity 14 through the injection pipe 19. At this time, the cold water can enter the other L-shaped cavity 14 through the connecting cavity 15, and the cold water can be discharged from the other injection pipe 19, which can cool the molded foam plastic. The upper template 11 can be pushed up by the hydraulic cylinder 13, and then the screw 5 is driven by the drive motor 6. Rotate, the screw 5 rotates to move the movable plate 4, and the movement of the movable plate 4 can move the formed foam plastic to the demoulding hole 9. At this time, the electric push rod 17 pushes the lifting plate 16 to rise, and the lifting plate 16 is raised to demould. During the demoulding process, another mold groove 8 can be located below the upper template 11. At this time, the hydraulic cylinder 13 pushes the upper template 11 to be embedded in the convex hole 10, and production can be carried out again, thereby allowing the device to remain in the foam plastic molding process during the demoulding process, which can improve the efficiency of foam plastic molding.

[0025] The wiring diagram of the drive motor 6, the hydraulic cylinder 13 and the electric push rod 17 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the drive motor 6, the hydraulic cylinder 13 and the electric push rod 17 are no longer explained in detail.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An EPS foam plastic mold, comprising a U-shaped plate (1), characterized in that: A movable plate (4) is provided inside the U-shaped plate (1), one end of the movable plate (4) passes through and is threadedly connected to a screw rod (5), both ends of the screw rod (5) pass through the U-shaped plate (1) and are rotatably connected to its bearings, one end of the U-shaped plate (1) is fixedly connected to a drive motor (6), the output end of the drive motor (6) is fixedly connected to one end of the screw rod (5), the top of the movable plate (4) is symmetrically provided with mold grooves (8), the top of the U-shaped plate (1) and near both ends are provided with mold holes (9), and the top of the U-shaped plate (1) is provided with a mold hole (9). A convex hole (10) is provided near the center, an upper template (11) is embedded in the convex hole (10), a fixing frame (12) is fixedly connected to the top of the movable plate (4) and near the center, a hydraulic cylinder (13) is fixedly connected to the top of the fixing frame (12), an output end of the hydraulic cylinder (13) passes through the fixing frame (12) and is fixedly connected to the top of the upper template (11), an L-shaped cavity (14) is symmetrically provided inside the movable plate (4), and a connecting cavity (15) is connected between the two L-shaped cavities (14) and near both ends.

2. The EPS foam plastic mold according to claim 1, characterized in that: The bottom of the U-shaped plate (1) and near the four corners are fixedly connected to support legs (2), and the bottoms of the support legs (2) are fixedly connected to support blocks (3).

3. The EPS foam plastic mold according to claim 1, characterized in that: The other end of the movable plate (4) is penetrated by and slidably connected to a sliding rod (7), and both ends of the sliding rod (7) are fixedly connected to the inner wall of the U-shaped plate (1).

4. The EPS foam plastic mold according to claim 1, characterized in that: A lifting plate (16) is provided inside the mold groove (8), and an electric push rod (17) is embedded and fixedly connected to the bottom of the movable plate (4) and located below the mold groove (8), and the output end of the electric push rod (17) is fixedly connected to the bottom of the lifting plate (16).

5. The EPS foam plastic mold according to claim 1, characterized in that: The top surface of the upper template (11) is fixed with and connected to a material injection pipe (18).

6. The EPS foam plastic mold according to claim 1, characterized in that: The front and rear surfaces of the movable plate (4) are both fixedly connected with a liquid injection pipe (19), and the liquid injection pipe (19) and the L-shaped cavity (14) are communicated with each other.

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