A plastic toy injection mold capable of preventing material leakage

Abstract

This utility model discloses a leak-proof injection mold for plastic toys, including a base. A sliding groove is provided on the upper side of the base, within which a movable mold is slidably connected, and a fixed mold is fixedly connected to its right end. A servo motor is fixedly connected to the left end of the base, and a screw is fixedly connected to the output end of the servo motor. The screw is located within the sliding groove and threadedly connected to the movable mold. The other end of the screw is connected to the base on its left side. A molding groove is provided on the side of the movable mold closest to the fixed mold. A retaining groove is provided on the movable mold outside the molding groove. A cooling groove is provided within the movable mold outside the retaining groove. A coil is provided within the cooling groove, with its inlet and outlet located on the front side of the movable mold. A push rod is fixedly connected to the base on the left side of the movable mold. The push rod is L-shaped, and a horizontal plate is fixedly connected to one end within the molding groove. This structure facilitates toy demolding and significantly improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a leak-proof injection mold for plastic toys. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, automated operation, a wide variety of designs and shapes (from simple to complex), and sizes ranging from large to small. It also produces dimensionally accurate products, facilitates product updates and replacements, and can create complex shapes. Injection molding is suitable for mass production and molding processes involving complex shapes.

[0003] High-temperature, high-pressure injection of a molten plastic solution into the molding chamber of an injection mold for plastic toys, followed by cooling and solidification, produces the plastic mold itself. This process offers advantages such as high production speed and efficiency. However, existing injection molds still have the following problems in use:

[0004] 1. Existing injection molds do not have automatic demolding functions. After production is completed, workers need to manually demold the molds, which causes inconvenience to the workers.

[0005] 2. Most injection molds do not have a cooling structure, requiring a long cooling period after production, which greatly reduces processing efficiency. Utility Model Content

[0006] The purpose of this invention is to provide a leak-proof plastic toy injection mold, which solves the problems mentioned above.

[0007] To achieve the above objectives, a leak-proof plastic toy injection mold is provided, comprising a base, a sliding groove on the upper side of the base, a movable mold slidably connected within the sliding groove, and a fixed mold fixedly connected to the right end of the movable mold, a servo motor fixedly connected to the left end of the base, a screw fixedly connected to the output end of the servo motor, the screw being located within the sliding groove and threadedly connected to the movable mold, and the other end of the screw being connected to the base on the left; a molding groove is provided on the side of the movable mold near the fixed mold, a retaining groove is provided on the movable mold located outside the molding groove, a cooling groove is provided within the movable mold located outside the retaining groove, a coil is provided within the cooling groove, the inlet and outlet of the coil are both located on the front side of the movable mold, and a push rod is fixedly connected to the base located on the left side of the movable mold, the push rod being L-shaped in general, and a horizontal plate fixedly connected to one end of the push rod located within the molding groove.

[0008] According to the aforementioned anti-leakage plastic toy injection mold, a snap-fit ​​block is fixedly connected to one side of the fixed mold and the moving mold, and the snap-fit ​​block is slidably connected to the snap-fit ​​groove and is adapted to the snap-fit ​​groove.

[0009] According to the aforementioned anti-leakage plastic toy injection mold, an injection molding machine is fixedly connected to a base located on the right side of the fixed mold, an injection tube is fixedly connected to the output end of the injection molding machine, and the other end of the injection tube is fixedly connected to the fixed mold.

[0010] According to the aforementioned anti-leakage plastic toy injection mold, the inner sidewall of the slide groove is provided with a guide groove, and guide blocks are fixedly connected to both sides of the moving mold near the guide groove. The guide blocks are located inside the guide groove and are slidably connected to the guide groove.

[0011] According to the aforementioned leak-proof plastic toy injection mold, the water inlet and outlet on the coil are arranged vertically, with the water inlet located below the water outlet, and both the water inlet and outlet are connected to external water pipes.

[0012] According to the aforementioned anti-leakage plastic toy injection mold, a rubber pad is fixedly connected inside the slot.

[0013] This utility model has the following beneficial effects:

[0014] 1. Compared with the existing technology, by setting a push rod on the base and a horizontal plate in the moving mold, after the toy cools down, the moving mold and the fixed mold are driven to open under the action of the servo motor. At this time, under the action of the push rod and the horizontal plate, the toy is pushed out of the molding groove when the moving mold moves to the left, and demolding is completed. The operation is convenient and demolding is completed as soon as the mold opens.

[0015] 2. Compared with existing technologies, by providing a cooling tank in the base and a coil in the cooling tank, cooling water can be circulated and cooled by connecting an external water pipe when cooling the toy. The operation is convenient, and even if the coil breaks, it will not damage the toy in the molding tank, which is safe and greatly improves work efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a structural diagram of a leak-proof plastic toy injection mold according to the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0019] Figure 3 for Figure 1 Enlarged view of the structure at point B;

[0020] Figure 4 This is a mold structure diagram of a leak-proof plastic toy injection mold according to the present invention.

[0021] Figure 5 This is a structural diagram of the moving mold of a leak-proof plastic toy injection mold according to the present invention;

[0022] Figure 6 This is a diagram of the coil structure of a leak-proof plastic toy injection mold according to the present invention.

[0023] Legend:

[0024] 1. Base; 2. Slide groove; 21. Guide groove; 3. Moving mold; 31. Molding groove; 32. Slot; 33. Cooling groove; 34. Guide block; 4. Fixed mold; 41. Clip block; 5. Servo motor; 51. Screw; 6. Coil; 7. Injection molding machine; 71. Injection tube; 8. Ejector rod. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-6 This utility model discloses a leak-proof plastic toy injection mold, which includes a base 1, a groove 2 on the upper side of the base 1, a movable mold 3 slidably connected in the groove 2, and a fixed mold 4 fixedly connected to the right end of the groove 2. An injection molding machine 7 is fixedly connected to the base 1 located to the right of the fixed mold 4. An injection tube 71 is fixedly connected to the output end of the injection molding machine 7, and the other end of the injection tube 71 is fixedly connected to the fixed mold 4. A guide groove 21 is provided on the inner side wall of the groove 2. Guide blocks 34 are fixedly connected to both sides of the movable mold 3 near the guide groove 21. The guide blocks 34 are located in the guide groove 21 and slidably connected to the guide groove 21. A pressure relief hole is provided on the left side of the movable mold 3. This structure is a conventional technology in the field of injection molding, so it is not shown in the figures of this patent.

[0027] A servo motor 5 is fixedly connected to the left end of the base 1. A screw 51 is fixedly connected to the output end of the servo motor 5. The screw 51 is located in the slide groove 2 and is threadedly connected to the moving mold 3. The other end of the screw 51 is connected to the base 1 on the left. Under the action of the servo motor 5 and the screw 51, the moving mold 3 and the fixed mold 4 are driven to open and close.

[0028] The moving mold 3 has a forming groove 31 on the side near the fixed mold 4. A retaining groove 32 is provided on the moving mold 3 outside the forming groove 31, and a rubber pad is fixedly connected inside the retaining groove 32. A retaining block 41 is fixedly connected on the side of the fixed mold 4 opposite to the moving mold 3. The retaining block 41 slidably connects to the retaining groove 32 and is adapted to it. Under the action of the retaining block 41 and the retaining groove 32, the moving mold 3 and the fixed mold 4 are better positioned. A cooling groove 33 is provided inside the moving mold 3 outside the retaining groove 32. A coil 6 is provided inside the cooling groove 33. The coil 6 is a flexible hose, and its outer periphery is in surface contact with the forming groove 31. Fixed to the outer periphery of the molding groove 31, it will not detach from the outer periphery of the molding groove 31 after the cooling water is injected. The water inlet and outlet on the coil 6 are both located on the front side of the moving mold 3. The water inlet and outlet on the coil 6 are set vertically, with the water inlet located below the water outlet. Both the water inlet and outlet are metal pipes, and both the water inlet and outlet are connected to external water pipes. A push rod 8 is fixedly connected to the base 1 located on the left side of the moving mold 3. The push rod 8 is L-shaped in general, and a horizontal plate is fixedly connected to one end located in the molding groove 31. Under the action of the horizontal plate, the contact area between the push rod 8 and the toy is increased, thereby protecting it when it is ejected.

[0029] Working principle: When in use, the servo motor 5 first drives the moving mold 3 to move, so that the moving mold 3 and the fixed mold 4 close together, and the injection molding machine 7 is started to complete the injection molding.

[0030] After injection molding is completed, the water pump is started to deliver cooling water to the coil 6. Under the action of the cooling water in the coil 6, the toy in the molding tank 31 is cooled. After cooling is completed, the servo motor 5 is started again. Under its action, the moving mold 3 and the fixed mold 4 are opened. At this time, under the action of the ejector rod 8 and the horizontal plate inside the moving mold 3, the toy is ejected from the molding tank 31 when the moving mold 3 moves to the left, and demolding is completed. The operation is convenient, and demolding is completed as soon as the mold is opened, which greatly improves the work efficiency.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A leak-proof injection mold for plastic toys, characterized in that, Includes a base (1), the upper side of which is provided with a slide groove (2), a moving mold (3) is slidably connected in the slide groove (2), and a fixed mold (4) is fixedly connected at the right end. A servo motor (5) is fixedly connected at the left end of the base (1), and a screw (51) is fixedly connected at the output end of the servo motor (5). The screw (51) is located in the slide groove (2) and is threadedly connected to the moving mold (3). The other end of the screw (51) is connected to the base (1) at the left end. The moving mold (3) has a forming groove (31) on the side close to the fixed mold (4). The moving mold (3) located outside the forming groove (31) has a slot (32). The moving mold (3) located outside the slot (32) has a cooling groove (33). The cooling groove (33) has a coil (6). The inlet and outlet of the coil (6) are located on the front side of the moving mold (3). A push rod (8) is fixedly connected to the base (1) on the left side of the moving mold (3). The push rod (8) is L-shaped in general, and a horizontal plate is fixedly connected to one end located in the forming groove (31).

2. The leak-proof plastic toy injection mold according to claim 1, characterized in that, A snap-fit ​​block (41) is fixedly connected to the side of the fixed mold (4) opposite to the moving mold (3). The snap-fit ​​block (41) is slidably connected to the slot (32) and is adapted to the slot (32).

3. The leak-proof plastic toy injection mold according to claim 2, characterized in that, An injection molding machine (7) is fixedly connected to a base (1) located on the right side of the fixed mold (4). An injection molding tube (71) is fixedly connected to the output end of the injection molding machine (7). The other end of the injection molding tube (71) is fixedly connected to the fixed mold (4).

4. A leak-proof plastic toy injection mold according to claim 3, characterized in that, The inner wall of the slide (2) is provided with a guide groove (21). The moving mold (3) is fixedly connected to guide blocks (34) on both sides near the guide groove (21). The guide blocks (34) are located in the guide groove (21) and are slidably connected to the guide groove (21).

5. A leak-proof plastic toy injection mold according to claim 4, characterized in that, The inlet and outlet of the coil (6) are arranged vertically, with the inlet located below the outlet. Both the inlet and outlet are connected to external water pipes.

6. A leak-proof plastic toy injection mold according to claim 5, characterized in that, A rubber pad is fixedly connected inside the slot (32).

Images