Injection mold capable of rapidly cooling and shaping

By introducing cooling rods and automatic demoulding mechanisms into the injection mold, the problems of slow shaping and improper removal of molten plastic in the injection mold are solved, achieving rapid cooling and efficient production.

CN223302106UActive Publication Date: 2025-09-05WUXI JINYUAN PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202421873826.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-05
Publication Date
2025-09-05
Estimated Expiration
2034-08-05

AI Technical Summary

Technical Problem

Existing injection molds need to wait for the molten plastic to be fixed after injection, which prolongs the production cycle and easily damages the product during the removal process, affecting production efficiency and quality.

Method used

The injection mold adopts rapid cooling and shaping. Water is introduced into the cooling rod through a water pump to absorb heat and accelerate the cooling of the plastic. Combined with the inclined rod and bottom support structure, automatic demoulding is achieved to ensure that the product is quickly shaped and correctly ejected.

Benefits of technology

It achieves rapid solidification and shaping of molten plastic, reduces the risk of product damage, and improves production efficiency and consistency of product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a quick cooling and shaping injection mold, which relates to the technical field of injection molds, and comprises a cooling mechanism, an auxiliary mechanism is arranged in the cooling mechanism, the cooling mechanism comprises a hollow box, and a lower mold is arranged in the top end of the hollow box. Water in the water tank is introduced into the lower mold through the water pump, the cooling rod is arranged in the lower mold, and heat on the cooling rod can be absorbed after the water is in contact with the cooling rod, so that the temperature of the cooling rod and the temperature of a plastic product are reduced, the cooling speed of the plastic is increased, the molten plastic is promoted to be quickly solidified and shaped, and the production efficiency is improved. The external force is applied to the pull handle, so that the transverse plate is moved, the angle of the inclined rod is changed, and the bottom support is moved upwards in the lower mold, so that an object subjected to injection molding is ejected out, and each molded product can be correctly ejected out.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a rapid cooling and shaping injection mold. Background Art

[0002] Injection molds are used for plastic injection molding. During the injection molding process, plastic is heated, melted, and injected into the mold. The molded part is then removed after cooling and solidification. Injection molds typically consist of a core and a cavity, designed and manufactured based on the shape and size of the desired product. Injection mold design requires consideration of factors such as material selection, product structure, cooling system, and injection molding system to ensure the production of high-quality plastic products.

[0003] In existing technologies, after the mold is finished injecting molten plastic, the molten plastic needs to be heated during the injection process. This means that after the injection is complete, it is necessary to wait for the molten plastic to set before it can be removed from the mold. This waiting time increases production cycle time and reduces production efficiency. Furthermore, when removing the molded object, inaccurate force may cause damage to the product during the removal process, such as deformation, scratches, and cracks, affecting product quality. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and provide an injection mold that can be quickly cooled and shaped.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rapid cooling and shaping injection mold, comprising: a cooling mechanism, an auxiliary mechanism is arranged inside the cooling mechanism, the cooling mechanism comprises a hollow box, a lower mold is arranged inside the top of the hollow box, the top of the hollow box is fixedly connected to the outside of the lower mold, an upper mold is arranged on the top of the lower mold, the top of the lower mold is vertically corresponding to the bottom of the upper mold, one end of the bottom of the upper mold is fixedly connected to the top of the hollow box, a slide groove is provided inside the hollow box, a side plate is provided on the inner surface of the slide groove, the inner surface of the slide groove is slidably connected to one side of the side plate, a cross plate is provided at one end of the side plate, one end of the side plate is fixedly connected to one side of the cross plate, an inclined rod is provided on the top of the cross plate, and the top of the cross plate is movably connected to the bottom end of the inclined rod.

[0006] As a preferred embodiment, the auxiliary mechanism includes a pulley, the middle end of the pulley is rotatably connected to the bottom of the cross plate, the outer side of the pulley is slidably connected to the inner wall of the hollow box, a spring is provided on one side of the slide groove inside the hollow box, one side of the slide groove is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to one side of the side plate.

[0007] As a preferred embodiment, a bottom bracket is provided at the top end of the inclined rod, the top end of the inclined rod is movably connected to the bottom end of the bottom bracket, and the outer side of the bottom bracket is slidably connected to the inner surface of the lower mold.

[0008] As a preferred embodiment, one end of the horizontal plate is connected to the interior of the hollow box, a handle is provided on one side of the hollow box, one side of the hollow box is movably connected to the middle end of the handle, and one end of the handle is movably connected to one end of the horizontal plate.

[0009] As a preferred embodiment, a cooling rod is provided inside the lower mold, and the inside of the lower mold is fixedly connected to the outside of the cooling rod. A water pump is provided on one side of the lower mold, and one side of the lower mold is fixedly connected to the connecting pipe on the water pump.

[0010] As a preferred embodiment, a water tank is provided at the bottom end of the water pump, the bottom end of the water pump is fixedly connected to the top of the water tank, and one side of the water tank is fixedly connected to one side of the hollow box.

[0011] As a preferred embodiment, a return pipe is provided on one side of the water tank, one side of the water tank is fixedly connected to one end of the return pipe, a solenoid valve is provided at the middle end of the return pipe, and the middle end of the return pipe is fixedly connected to the connecting end of the solenoid valve.

[0012] As a preferred embodiment, the other end of the return pipe is fixedly connected to the interior of the lower mold.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. Water in the water tank is introduced into the lower mold through a water pump. A cooling rod is installed inside the lower mold. When water comes into contact with the cooling rod, it absorbs the heat from the cooling rod, thereby reducing the temperature of the cooling rod and the plastic product. This helps to speed up the cooling of the plastic and promote the rapid solidification and shaping of the molten plastic. By applying external force to the pull handle, the cross plate is moved, and the angle of the diagonal rod is changed. The bottom support is moved upward in the lower mold, thereby ejecting the object after injection molding, ensuring that each molded product can be ejected correctly.

[0015] 2. After the horizontal plate is moved, it needs to be reset. Therefore, when the external force of the horizontal plate disappears, the spring will be released and the horizontal plate will be pushed back along the original path without manual intervention, thereby improving production efficiency. The injection molding machine quickly resets after completing an injection cycle and prepares for the next production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a structural schematic diagram of a rapid cooling and shaping injection mold.

[0017] Figure 2 The utility model provides a schematic diagram of the disassembled structure of the cooling mechanism components of a rapid cooling and shaping injection mold.

[0018] Figure 3 The utility model provides a schematic diagram of the cooling mechanism of a rapid cooling and shaping injection mold.

[0019] Figure 4 The utility model provides a schematic diagram of the dissected structure of a cooling mechanism component of a rapid cooling and shaping injection mold.

[0020] Legend:

[0021] 1. Cooling mechanism; 11. Hollow box; 12. Lower mold; 13. Upper mold; 14. Horizontal plate; 15. Diagonal rod; 16. Bottom support; 17. Side plate; 19. Chute; 110. Cooling rod; 111. Water pump; 112. Water tank; 113. Return pipe; 114. Solenoid valve; 115. Handle;

[0022] 2. Auxiliary mechanism; 21. Spring; 22. Pulley. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] like Figure 1 - Figure 4As shown, the utility model provides a technical solution: a rapid cooling and shaping injection mold, comprising: a cooling mechanism 1, an auxiliary mechanism 2 is provided inside the cooling mechanism 1, the cooling mechanism 1 comprises a hollow box 11, a lower mold 12 is provided inside the top of the hollow box 11, the top of the hollow box 11 is fixedly connected to the outside of the lower mold 12, an upper mold 13 is provided on the top of the lower mold 12, the top of the lower mold 12 is vertically corresponding to the bottom of the upper mold 13, and one end of the bottom of the upper mold 13 is aligned with the top of the hollow box 11. The hollow box 11 is fixedly connected. A chute 19 is provided inside the hollow box 11. The inner surface of the chute 19 is provided with a side plate 17. The inner surface of the chute 19 is slidably connected to one side of the side plate 17. A transverse plate 14 is provided at one end of the side plate 17. One end of the side plate 17 is fixedly connected to one side of the transverse plate 14. An inclined rod 15 is provided at the top of the transverse plate 14. The top of the transverse plate 14 is movably connected to the bottom end of the inclined rod 15. A bottom bracket 16 is provided at the top of the inclined rod 15. The top of the inclined rod 15 is movably connected to the bottom of the bottom bracket 16. The outer side of the bottom bracket 16 is connected to the lower mold. The inner surface of the tool 12 is slidably connected, one end of the horizontal plate 14 is connected to the inside of the hollow box 11, a pull handle 115 is provided on one side of the hollow box 11, one side of the hollow box 11 is movably connected to the middle end of the pull handle 115, one end of the pull handle 115 is movably connected to one end of the horizontal plate 14, a cooling rod 110 is provided inside the lower mold 12, the inside of the lower mold 12 is fixedly connected to the outside of the cooling rod 110, a water pump 111 is provided on one side of the lower mold 12, and one side of the lower mold 12 is fixed to the connecting pipe on the water pump 111 The water tank 112 is connected, and the bottom end of the water pump 111 is provided with a water tank 112, and the bottom end of the water pump 111 is fixedly connected to the top of the water tank 112, and one side of the water tank 112 is fixedly connected to one side of the hollow box 11, and a return pipe 113 is provided on one side of the water tank 112, and one side of the water tank 112 is fixedly connected to one end of the return pipe 113, and a solenoid valve 114 is provided at the middle end of the return pipe 113, and the middle end of the return pipe 113 is fixedly connected to the connecting end of the solenoid valve 114, and the other end of the return pipe 113 is fixedly connected to the interior of the lower mold 12.

[0026] In this embodiment, after the injection molding is completed, in order to enable the molten plastic to be quickly shaped, water in the water tank 112 is introduced into the lower mold 12 through a water pump 111. A cooling rod 110 is provided inside the lower mold 12. When the water comes into contact with the cooling rod 110, it absorbs the heat from the cooling rod 110, thereby reducing the temperature of the cooling rod 110 and the plastic product. This helps to accelerate the cooling speed of the plastic, prompting the molten plastic to quickly solidify and shape. In addition, through rapid cooling, quality problems such as bubbles, marks or deformation on the surface of the plastic product can be avoided, thereby improving the appearance quality and consistency of the product.

[0027] Secondly, after cooling is completed, the solenoid valve 114 can be opened to clear the return pipe 113. At this time, the water inside the lower mold 12 will flow back into the water tank 112 along the path of the return pipe 113. By returning the water to the water tank 112, the hot water in the lower mold 12 can be mixed with the cooling water in the water tank 112, thereby reducing the temperature of the cooling water. This helps to restore the cooling efficiency of the cooling water and improve the cooling effect of the subsequent injection molding cycle.

[0028] In addition, when it is necessary to demold the internal objects of the lower mold 12, external force is applied to the pull handle 115 to move the cross plate 14, and the diagonal rod 15 will gradually change from an inclined state to a vertical shape as it moves. As it becomes more vertical, the bottom support 16 will move upward in the lower mold 12, thereby ejecting the object after injection molding, ensuring that each molded product can be ejected correctly, reducing product damage or defective rate caused by improper demolding, which helps to improve product quality and production consistency.

[0029] Example 2

[0030] like Figure 3 As shown, the auxiliary mechanism 2 includes a pulley 22, the middle end of the pulley 22 is rotatably connected to the bottom of the cross plate 14, the outer side of the pulley 22 is slidably connected to the inner wall of the hollow box 11, and a spring 21 is provided on one side of the slide groove 19 inside the hollow box 11, one side of the slide groove 19 is fixedly connected to one end of the spring 21, and the other end of the spring 21 is fixedly connected to one side of the side plate 17.

[0031] In this embodiment, when the horizontal plate 14 is moved and needs to be reset, the spring 21 is released when the external force on the horizontal plate 14 disappears, pushing the horizontal plate 14 back along its original path without manual intervention, thereby improving production efficiency. The injection molding machine quickly resets after completing an injection cycle and prepares for the next production, saving time and improving production capacity. Secondly, the pulley 22 provided at the bottom of the horizontal plate 14 can reduce friction with the hollow box 11 during the movement of the horizontal plate 14, thereby reducing energy loss. This helps to improve the operating efficiency of the injection molding mechanism and reduce energy consumption.

[0032] Working principle:

[0033] like Figure 1 - Figure 4As shown, when the present invention is in use, according to the needs of the user, the water pump 111 introduces the water in the water tank 112 into the lower mold 12, and the lower mold 12 is provided with a cooling rod 110 inside. When the water contacts the cooling rod 110, it absorbs the heat on the cooling rod 110, thereby reducing the temperature of the cooling rod 110 and the plastic product, which helps to accelerate the cooling speed of the plastic and promote the rapid solidification and shaping of the molten plastic. By applying external force to the pull handle 115, the horizontal plate 14 is moved, and the inclined rod 15 will gradually evolve from an inclined state to a vertical shape as it moves. As it continues to be vertical, the bottom support 16 will move upward in the lower mold 12, thereby ejecting the object after injection molding, which can ensure that each molded product can be ejected correctly.

[0034] When the cross plate 14 is moved, it needs to be reset. Therefore, when the external force of the cross plate 14 disappears, the spring 21 will be released, and the cross plate 14 will be pushed back along the original path without manual intervention, thereby improving production efficiency. The injection molding machine quickly resets after completing an injection cycle and prepares for the next production.

[0035] 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. A rapid cooling and shaping injection mold, characterized in that: include: A cooling mechanism (1) is provided with an auxiliary mechanism (2) inside the cooling mechanism (1), the cooling mechanism (1) comprises a hollow box (11), a lower mold (12) is provided inside the top of the hollow box (11), the top of the hollow box (11) is fixedly connected to the outside of the lower mold (12), an upper mold (13) is provided on the top of the lower mold (12), the top of the lower mold (12) corresponds vertically to the bottom of the upper mold (13), and one end of the bottom of the upper mold (13) is aligned with the hollow box (1 1), a chute (19) is provided inside the hollow box (11), a side plate (17) is provided on the inner surface of the chute (19), the inner surface of the chute (19) is slidably connected to one side of the side plate (17), a transverse plate (14) is provided at one end of the side plate (17), one end of the side plate (17) is fixedly connected to one side of the transverse plate (14), an inclined rod (15) is provided at the top of the transverse plate (14), and the top of the transverse plate (14) is movably connected to the bottom end of the inclined rod (15).

2. The rapid cooling and shaping injection mold according to claim 1, characterized in that: The auxiliary mechanism (2) includes a pulley (22), the middle end of the pulley (22) is rotatably connected to the bottom of the transverse plate (14), the outer side of the pulley (22) is slidably connected to the inner wall of the hollow box (11), and a spring (21) is provided on one side of the internal chute (19) of the hollow box (11), one side of the chute (19) is fixedly connected to one end of the spring (21), and the other end of the spring (21) is fixedly connected to one side of the side plate (17).

3. The rapid cooling and shaping injection mold according to claim 2, characterized in that: The top of the inclined rod (15) is provided with a bottom support (16), the top of the inclined rod (15) is movably connected to the bottom of the bottom support (16), and the outer side of the bottom support (16) is slidably connected to the inner surface of the lower mold (12).

4. The rapid cooling and shaping injection mold according to claim 1, characterized in that: One end of the transverse plate (14) is connected to the interior of the hollow box (11), a handle (115) is provided on one side of the hollow box (11), one side of the hollow box (11) is movably connected to the middle end of the handle (115), and one end of the handle (115) is movably connected to one end of the transverse plate (14).

5. The rapid cooling and shaping injection mold according to claim 1, characterized in that: A cooling rod (110) is provided inside the lower mold (12), and the inside of the lower mold (12) is fixedly connected to the outside of the cooling rod (110). A water pump (111) is provided on one side of the lower mold (12), and one side of the lower mold (12) is fixedly connected to a connecting pipe on the water pump (111).

6. The rapid cooling and shaping injection mold according to claim 5, characterized in that: A water tank (112) is provided at the bottom end of the water pump (111), the bottom end of the water pump (111) is fixedly connected to the top of the water tank (112), and one side of the water tank (112) is fixedly connected to one side of the hollow box (11).

7. The rapid cooling and shaping injection mold according to claim 6, characterized in that: A return pipe (113) is provided on one side of the water tank (112), one side of the water tank (112) is fixedly connected to one end of the return pipe (113), a solenoid valve (114) is provided at the middle end of the return pipe (113), and the middle end of the return pipe (113) is fixedly connected to the connecting end of the solenoid valve (114).

8. The rapid cooling and shaping injection mold according to claim 7, characterized in that: The other end of the return pipe (113) is fixedly connected to the interior of the lower mold (12).