Cooling structure of injection molding machine

Abstract

The utility model relates to a cooling structure of an injection molding machine, which comprises a fixed mould structure and a movable mould structure which are matched with each other, the movable mould structure comprises a movable mould shell, the movable mould shell is a cavity structure with an opening at the right end, the right end part of the movable mould shell is detachably and fixedly connected with a movable mould cover plate, and a concave mould hole at the central position of the movable mould cover plate is integrally connected with a concave mould. A mounting hole is formed in a bottom plate of the movable mold shell, a first fan is mounted at the mounting hole, a plurality of first ventilation holes are formed in a top plate of the movable mold shell, the fixed mold structure comprises a fixed mold shell, the fixed mold shell is of a cavity structure with an opening in the left end, and a fixed mold cover plate is detachably and fixedly connected to the left end of the fixed mold shell; the central position of one end part of the fixed die cover plate is integrally connected with a convex die matched with the concave die; and the fan is used for cooling, so that the problem of water leakage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine equipment, and specifically to a cooling structure for an injection molding machine. Background Technology

[0002] Injection molding machines are the main molding equipment that heats and melts thermoplastics, then extrudes them through the injection nozzle into a fixed mold and a moving mold to form various shapes of plastic products. The moving mold is generally driven by a hydraulic cylinder to move to the fixed mold, where it closes with the fixed mold, injecting the molten plastic into the closed mold cavity. After cooling and solidification, the plastic product is obtained. Current injection molding machines generally use water cooling, but water cooling requires ensuring no water leakage and high sealing performance. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides a cooling structure for an injection molding machine.

[0004] The technical solution of this utility model is implemented as follows: A cooling structure for an injection molding machine includes a fixed mold structure and a moving mold structure that cooperate with each other. The moving mold structure includes a moving mold housing, which is a cavity structure with an opening at the right end. A moving mold cover plate is detachably and fixedly connected to the right end of the moving mold housing. A cavity mold is integrally connected to the cavity mold hole at the center of the moving mold cover plate. The cavity mold is located inside the moving mold housing. A mounting hole is provided on the bottom plate of the moving mold housing, and a fan is installed at the mounting hole. Multiple ventilation holes are provided on the top plate of the moving mold housing. The fixed mold structure includes a fixed mold housing, which is a cavity structure with an opening at the left end. A fixed mold cover plate is detachably and fixedly connected to the left end of the fixed mold housing. A punch that cooperates with the cavity mold is integrally connected to the center of one end of the fixed mold cover plate. The punch is located outside the fixed mold housing. A fastening device is provided between the moving mold housing and the moving mold cover plate. A fastening device is provided between the fixed mold housing and the fixed mold cover plate. The fastening device is the same in structure as the fastening device.

[0005] The fastening device includes ear plate 1 and ear plate 2. Ear plate 1 is symmetrically installed on both sides of the moving mold housing, and ear plate 2 is symmetrically installed on both sides of the moving mold cover plate. The two opposite sides of ear plate 1 and ear plate 2 are in contact with each other, and ear plate 1 and ear plate 2 are fixedly connected by bolts.

[0006] The fastening device 2 includes ear plate 3 and ear plate 4. Ear plate 3 is symmetrically installed on both sides of the fixed mold housing, and ear plate 4 is symmetrically installed on both sides of the fixed mold cover plate. The two opposite sides of ear plate 3 and ear plate 4 are in contact with each other, and ear plate 3 and ear plate 4 are fixedly connected by bolts.

[0007] A feed hole is provided at the center of the fixed mold cover plate, the punch, and the fixed mold housing back plate.

[0008] The bottom plate of the fixed mold housing has mounting holes, and a fan is installed at the mounting holes. The top plate of the fixed mold housing has multiple ventilation holes.

[0009] The moving mold housing is installed on the side of the vertically arranged movable plate, and the fixed mold housing is installed on the side of the vertically arranged fixed plate. An L-shaped support is fixedly connected to the top of the movable plate, and a horizontally placed fan three is installed on the side of the vertical plate of the L-shaped support. The fan three is located above the moving mold housing.

[0010] The technical solution of this utility model has the following positive effects: The moving mold structure of this utility model includes a hollow moving mold shell and a moving mold cover plate. A fan is installed on the bottom plate of the moving mold shell, and ventilation holes are opened on the top plate of the moving mold shell. The fan removes heat and plays a role in cooling. The fixed mold structure includes a hollow fixed mold shell and a fixed mold cover plate. The fan and ventilation holes play a role in cooling. Both the moving mold cover plate and the fixed mold cover plate are detachable, which makes it convenient to replace concave molds and convex molds of different shapes. A horizontally placed fan 3 is installed on the top of the moving plate through an L-shaped support seat. The fan 3 is above the moving mold shell, which increases the cooling effect. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the moving mold housing.

[0013] Figure 3 This is a schematic diagram of the fixed mold shell.

[0014] Figure 4 This is a schematic diagram of the structure of the moving mold cover plate.

[0015] Figure 5 This is a structural diagram of a specific implementation method. Detailed Implementation

[0016] like Figure 1-5As shown, a cooling structure for an injection molding machine includes a fixed mold structure and a moving mold structure that cooperate with each other. The moving mold structure includes a moving mold housing 1, which is a cavity structure with an opening at the right end. A moving mold cover plate 2 is detachably and fixedly connected to the right end of the moving mold housing 1. A cavity mold 3 is integrally connected to the cavity mold hole at the center of the moving mold cover plate 2. The cavity mold is located inside the moving mold housing. A mounting hole is provided on the bottom plate of the moving mold housing 1, and a fan 4 is installed at the mounting hole. Multiple ventilation holes are provided on the top plate of the moving mold housing 1. Hole 5, the fixed mold structure includes a fixed mold housing 6, the fixed mold housing 6 is a cavity structure with an opening at the left end, the left end of the fixed mold housing 6 is detachably and fixedly connected to a fixed mold cover plate 7, a punch 19 that cooperates with the concave mold 3 is integrally connected to the center position of one end of the fixed mold cover plate 7, the punch is located outside the fixed mold housing, a fastening device 1 is provided between the moving mold housing 1 and the moving mold cover plate 2, and a fastening device 2 is provided between the fixed mold housing 6 and the fixed mold cover plate 7, the fastening device 1 and the fastening device 2 have the same structure;

[0017] Specifically, during injection molding, the moving mold structure moves towards the fixed mold structure, allowing the punch 19 to enter the cavity 3. The hot melt is squeezed into the gap between the punch 19 and the cavity 3, filling it completely. Then, cooling and solidification are required. Fan 4 is activated, blowing air to remove heat through the ventilation hole 5 at the top, thus achieving the cooling effect. Both the fixed mold cover plate 7 and the moving mold cover plate 2 are removable, allowing for the replacement of molds with different shapes.

[0018] Fastening device one includes ear plate one 8 and ear plate two 9. Ear plate one 8 is symmetrically installed on both sides of the moving mold housing 1, and ear plate two 9 is symmetrically installed on both sides of the moving mold cover plate 2. The opposite sides of ear plate one 8 and ear plate two 9 are in contact with each other. Both ear plate one 8 and ear plate two 9 have holes. Ear plate one 8 and ear plate two 9 are fixedly connected by bolts. Fastening device two includes ear plate three 17 and ear plate four 18. Ear plate three 17 is symmetrically installed on both sides of the fixed mold housing 6, and ear plate four 18 is symmetrically installed on both sides of the fixed mold cover plate 7. The opposite sides of ear plate three 17 and ear plate four 18 are in contact with each other. Both ear plate three 17 and ear plate four 18 have holes. Ear plate three 17 and ear plate four 18 are fixedly connected by bolts.

[0019] Specifically, the moving mold housing 1 and the moving mold cover plate 2 are assembled together, then the first ear plate 8 and the second ear plate 9 are fitted together and fixed with bolts, as shown. Figure 5 As shown, when the fixed mold structure and the moving mold structure are closed, there is a certain gap between the first fastening device and the second fastening device, so as to ensure that the fixed mold structure and the moving mold structure fit tightly together.

[0020] A feed hole 10 is provided at the center of the fixed mold cover plate 7, the punch 19 and the back plate of the fixed mold housing 6; the molten plastic is injected into the die 3 through the feed hole 10 by a screw extruder.

[0021] The bottom plate of the fixed mold housing 6 has mounting holes, and a fan 11 is installed at the mounting holes. The top plate of the fixed mold housing 6 has multiple ventilation holes 12.

[0022] The moving mold housing 1 is installed on the side of the vertically arranged movable plate 16, and the fixed mold housing 6 is installed on the side of the vertically arranged fixed plate 13. An L-shaped support 15 is fixedly connected to the top of the movable plate 16. A horizontally placed fan 3 14 is installed on the side of the vertical plate of the L-shaped support 15, and the fan 3 14 is located above the moving mold housing 1. Specifically, in actual use, both the movable plate 16 and the fixed plate 13 are provided with guide rods 20. The fixed plate 13 connected to the moving mold housing 1 moves along the guide rods 20. Therefore, the fan 3 14 is installed on the top of the fixed plate 13 through the L-shaped support 15, so that the fan 3 14 will not interfere when the fixed plate 13 moves.

Claims

1. A cooling structure of an injection molding machine, comprising a fixed mold structure and a movable mold structure that cooperate with each other, characterized in that: The movable mold structure includes a movable mold shell, which is a cavity structure with an opening at the right end. The right end of the movable mold shell is detachably fixedly connected to a movable mold cover plate, and a concave mold is integrally connected to the concave mold hole at the center position of the movable mold cover plate, and the concave mold is located in the movable mold shell. A mounting hole is provided on the bottom plate of the movable mold shell, and a fan is installed at the mounting hole. A plurality of ventilation holes are provided on the top plate of the movable mold shell. The fixed mold structure includes a fixed mold shell, which is a cavity structure with an opening at the left end. The left end of the fixed mold shell is detachably fixedly connected to a fixed mold cover plate, and a convex mold matching the concave mold is integrally connected to the center position of one end of the fixed mold cover plate, and the convex mold is located outside the fixed mold shell. A fastening device 1 is provided between the movable mold shell and the movable mold cover plate, and a fastening device 2 is provided between the fixed mold shell and the fixed mold cover plate. The structures of the fastening device 1 and the fastening device 2 are the same.

2. The cooling structure of an injection molding machine according to claim 1, characterized in that: The fastening device 1 includes ear plate 1 and ear plate 2. Ear plate 1 is symmetrically installed on both sides of the movable mold shell, and ear plate 2 is symmetrically installed on both sides of the movable mold cover plate. The two opposite side surfaces of ear plate 1 and ear plate 2 are fitted together, and ear plate 1 and ear plate 2 are fixedly connected by bolts.

3. The cooling structure of an injection molding machine according to claim 2, characterized in that: Fastening device two includes ear plate three and ear plate four, ear plate three is symmetrically installed on both sides of the fixed mold shell, ear plate four is symmetrically installed on both sides of the fixed mold cover plate, ear plate three and ear plate four are fitted on opposite sides, and ear plate three and ear plate four are fixedly connected by bolts.

4. The cooling structure of an injection molding machine according to claim 1, characterized in that: Feed holes are provided at the center positions of the fixed die cover plate, the punch and the fixed die shell back plate.

5. The cooling structure of an injection molding machine according to claim 1, characterized in that: A mounting hole is provided on the bottom plate of the fixed mold shell, a second fan is installed at the mounting hole, and a plurality of second ventilation holes are provided on the top plate of the fixed mold shell.

6. The cooling structure of an injection molding machine according to claim 1, characterized in that: The movable mold shell is installed on the side of the vertically arranged movable plate, the fixed mold shell is installed on the side of the vertically arranged fixed plate, the top of the movable plate is fixedly connected with an L-shaped support seat, and the side of the vertical plate of the L-shaped support seat is installed with a horizontally placed fan three, and the fan three is located above the movable mold shell.

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