Rapid cooling structure for a plastic injection mold

Abstract

The utility model relates to the technical field of the slush, concretely is slush mould quick cooling structure. Slush mould quick cooling structure includes: base, liquid cooling assembly, liquid cooling assembly includes cooling bin and cooling water, and cooling bin sets up on the base, and the cooling water is placed in the cooling bin inside, wherein, the horizontal surface and the cooling bin top between cooling water reserve interval position, stand, stand is fixed in the top both sides of cooling bin. The utility model has the beneficial effect: this device adopts the cooling mode of liquid cooling and air cooling combination, in the liquid cooling stage, the mould is driven by the lifting assembly and carries the carrier frame to immerse in the cooling water in the cooling bin, realizes the quick preliminary cooling, in the air cooling stage, the mould is lifted to the cooling bin top reserve interval position by the lifting assembly, adopts the air cooling assembly to produce the positive pressure airflow again, further accelerates the heat loss of mould surface, and the synergies of two kinds of cooling modes shorten the cooling time of mould, and the production efficiency is improved obviously.

Description

Technical Field

[0001] This utility model relates to the field of slush molding technology, specifically to a rapid cooling structure for slush molding molds. Background Technology

[0002] Slush molding is a widely used processing technology in toy manufacturing. It primarily uses polyvinyl chloride (PVC) resin or PVC granules as raw materials, processing them into a latex-like material, which is then injected into a metal mold. The mold is subsequently placed in a heating furnace for heating and curing. After heating, the mold needs to be rapidly cooled to solidify the product shape. Finally, the mold is opened to remove the finished slush toy.

[0003] In existing technologies, the cooling of slush molds typically employs liquid cooling, which involves immersing the heated metal mold in cooling water or other liquid media to lower its temperature. However, slush molds are usually made of metal and, to improve production efficiency, are often composed of multiple smaller molds, resulting in a relatively large overall mold weight. Furthermore, the placement and removal of the mold during the cooling process relies heavily on manual labor, which is cumbersome, time-consuming, and labor-intensive, making it difficult to meet the demands of efficient and automated production. Utility Model Content

[0004] This invention addresses the technical problems existing in the prior art by providing a rapid cooling structure for slush molding dies. Slush molding dies are typically made of metal and, to improve production efficiency, are often composed of multiple smaller dies, resulting in a large overall die weight. Furthermore, during the cooling process, the insertion and removal of the die are mainly done manually, which is cumbersome, time-consuming, and labor-intensive.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a rapid cooling structure for slush molds, comprising: Base; A liquid cooling assembly, comprising a cooling chamber and cooling water, wherein the cooling chamber is mounted on a base and the cooling water is placed inside the cooling chamber, and a pre-reserved gap is provided between the horizontal plane of the cooling water and the top of the cooling chamber; The columns are fixed to the top two sides of the cooling chamber; A suspension bracket, located above the cooling chamber and fixed to the top of the column; A support frame that slides along the edge of the column outside the column; A lifting assembly is provided at the bottom of the suspension frame, and the lifting end of the lifting assembly is connected to the support frame. An air-cooled assembly is provided at a reserved interval on both sides of the cooling chamber, wherein the air-cooled assembly is used to blow out positive pressure airflow.

[0006] The beneficial effects of this utility model are: 1) This device adopts a cooling method that combines liquid cooling and air cooling. In the liquid cooling stage, the mold is immersed in the cooling water in the cooling chamber by the lifting component. In the air cooling stage, the mold is lifted to the reserved gap position at the top of the cooling chamber by the lifting component. Then, the air cooling component generates positive pressure airflow to further accelerate the dissipation of heat from the mold surface. The synergistic effect of the two cooling methods shortens the cooling time of the mold and significantly improves production efficiency. Moreover, it automatically completes the immersion and removal of the mold, replacing the traditional manual handling method and greatly reducing the labor intensity of workers.

[0007] 2) In addition, by utilizing the reserved space between the top of the cooling chamber and the surface of the cooling water, when the mold is raised to this position, the support frame can serve as a stable working platform for direct mold opening operations without the need to transfer the mold to other platforms. Compared with traditional processes, this eliminates the mold moving step, simplifies the production process, and shortens the overall production cycle.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the support frame includes a slider, a groove, a space frame, a support rod, a wall panel, and multiple connecting rods, with the groove being formed on one side of the column.

[0010] Furthermore, the grid frame is located inside the cooling chamber, the wall panel is fixed on both sides of the grid frame, and one end of the support rod is fixed to one side of the wall panel.

[0011] Furthermore, the slider slides within the groove of the column, and the other end of the support rod is fixedly connected to the slider. The plurality of rods are respectively fixed between the wall panels and between the support rods.

[0012] Furthermore, the lifting assembly includes an electric actuator, the top of which is fixed to the bottom of the suspension frame, and the drive end of the electric actuator is fixed to the connecting rod.

[0013] The beneficial effects of adopting the above-mentioned further solution are that the electric push rod machine, as the driving source, controls the rising and falling movement of the connecting rod. The connecting rod is mechanically connected to the wall panel and the support rod. The movement of the connecting rod drives the wall panel and the support rod to rise and fall synchronously. The support rod is further connected to the slider, which is embedded in the groove of the column and slides along the groove. Therefore, the slush mold can be automatically immersed in the cooling water in the cooling chamber for liquid cooling treatment along with the support frame. After cooling, the electric push rod machine reverses the drive, causing the mold to rise with the support frame to the reserved gap position between the top of the cooling chamber and the liquid surface. This replaces the traditional manual lifting method, which not only makes the operation more stable but also reduces labor intensity and improves production efficiency.

[0014] Furthermore, the air-cooling component includes a blower.

[0015] Furthermore, a negative pressure fan is provided at the bottom of the suspension frame.

[0016] The beneficial effect of adopting the above-mentioned further solution is that when the mold rises with the support frame to the reserved gap position between the top of the cooling chamber and the liquid surface, it is surrounded by the cooling chamber wall. At this time, the hot steam generated by cooling the mold can be efficiently removed by the negative pressure fan set at the bottom of the suspension frame, avoiding hot steam overflow and contact with the operator, thereby effectively preventing steam burns and improving operational safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged schematic diagram of the structure of section A in the middle; Figure 3 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0018] The attached diagram lists the components represented by each number as follows: 10. Base; 20. Liquid cooling assembly; 201. Cooling chamber; 30. Column; 40. Suspension frame; 50. Bearing frame; 501. Slider; 502. Slide rail; 503. Space frame; 504. Support rod; 505. Wall panel; 506. Connecting rod; 60. Lifting assembly; 70. Air-cooled assembly; 80. Negative pressure fan. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] Slush molding is a widely used processing technology in toy manufacturing. It primarily uses polyvinyl chloride (PVC) resin or PVC granules as raw materials, processing them into a latex-like material, which is then injected into a metal mold. The mold is subsequently placed in a heating furnace for heating and curing. After heating, the mold needs to be rapidly cooled to solidify the product shape. Finally, the mold is opened to remove the finished slush toy.

[0021] In existing technologies, the cooling of slush molds typically employs liquid cooling, which involves immersing the heated metal mold in cooling water or other liquid media to lower its temperature. However, slush molds are usually made of metal and, to improve production efficiency, are often composed of multiple smaller molds, resulting in a relatively large overall mold weight. During the cooling process, the insertion and removal of the mold are mainly done manually, which is cumbersome, time-consuming, and labor-intensive, making it difficult to meet the demands of efficient and automated production. Therefore, the inventor of this utility model proposes a rapid cooling structure for slush molds to address these problems.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the rapid cooling structure for slush molds includes: Base 10; The liquid cooling assembly 20 includes a cooling chamber 201 and cooling water. The cooling chamber 201 is disposed on the base 10, and the cooling water is placed inside the cooling chamber 201. A gap is reserved between the horizontal plane of the cooling water and the top of the cooling chamber 201. The columns 30 are fixed to the top two sides of the cooling chamber 201; The suspension bracket 40 is located above the cooling chamber 201 and fixed to the top of the column 30; The support frame 50 slides along the edge of the column 30 outside the column 30. The lifting assembly 60 is located at the bottom of the suspension frame 40, and the lifting end of the lifting assembly 60 is connected to the support frame 50. Air-cooled component 70 is set at the reserved interval positions on both sides of cooling chamber 201, wherein air-cooled component 70 is used to blow out positive pressure airflow; This device employs a combination of liquid cooling and air cooling. In the liquid cooling stage, the mold is immersed in the cooling water in the cooling chamber 201 by the lifting component 60 driving the support frame 50, achieving rapid initial cooling. In the air cooling stage, the mold is lifted by the lifting component 60 to the pre-reserved interval position at the top of the cooling chamber 201, and then the air cooling component 70 generates positive pressure airflow to further accelerate the dissipation of heat from the mold surface. The synergistic effect of the two cooling methods shortens the cooling time of the mold, significantly improves production efficiency, and automatically completes the immersion and removal operations of the mold, replacing the traditional manual handling method and greatly reducing the labor intensity of workers. In addition, by utilizing the reserved space between the top of the cooling chamber 201 and the surface of the cooling water, when the mold is raised to this position, the support frame 50 can serve as a stable working platform for direct mold opening operations without having to transfer the mold to other platforms. Compared with traditional processes, this eliminates the mold moving step, simplifies the production process, and shortens the overall production cycle.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the support frame 50 includes a slider 501, a slide groove 502, a mesh frame 503, a support rod 504, a wall panel 505, and multiple connecting rods 506. The slide groove 502 is opened on one side of the column 30. The mesh frame 503 is located inside the cooling chamber 201. The wall panel 505 is fixed on both sides of the mesh frame 503. One end of the support rod 504 is fixed on one side of the wall panel 505. The slider 501 slides in the slide groove 502 of the column 30. The other end of the support rod 504 is fixedly connected to the slider 501. Multiple connecting rods 506 are respectively fixed between the wall panels 505 and between the support rods 504. The lifting assembly 60 includes an electric push rod. The top of the electric push rod is fixed to the bottom of the suspension frame 40, and the drive end of the electric push rod is fixed to the connecting rod 506. The electric push rod mechanism acts as the driving source, controlling the rising and falling motion of the connecting rod 506. The connecting rod 506 is mechanically connected to the wall plate 505 and the support rod 504. The movement of the connecting rod 506 drives the wall plate 505 and the support rod 504 to rise and fall synchronously. The support rod 504 is further connected to the slider 501. The slider 501 is embedded in the groove 502 of the column 30 and slides along the groove 502. Therefore, the slush mold can be automatically immersed in the cooling water in the cooling chamber 201 for liquid cooling treatment along with the support frame 50. After cooling, the electric push rod mechanism reverses the drive, causing the mold to rise with the support frame 50 to the reserved gap position between the top of the cooling chamber 201 and the liquid surface. This replaces the traditional manual lifting method, which not only makes the operation smoother but also reduces labor intensity and improves production efficiency.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the air-cooled assembly 70 includes a blower.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a negative pressure fan 80 is provided at the bottom of the suspension frame 40. When the mold rises with the support frame 50 to the reserved gap between the top of the cooling chamber 201 and the liquid surface, it is surrounded by the walls of the cooling chamber 201. At this time, the hot steam generated by cooling the mold can be efficiently removed by the negative pressure fan 80 at the bottom of the suspension frame 40, preventing the hot steam from overflowing and contacting the operator, thereby effectively preventing steam burns and improving operational safety.

[0026] The specific working process of this utility model is as follows: (1) Liquid cooling First, the slush mold that needs to be cooled is placed on the grid frame 503 of the support frame 50. At this time, the electric push rod motor acts as the driving source to control the downward movement of the connecting rod 506. The connecting rod 506 is mechanically connected to the wall panel 505 and the support rod 504. The movement of the connecting rod 506 drives the wall panel 505, the grid frame 503 and the support rod 504 to descend synchronously. The support rod 504 is connected to the slider 501. The slider 501 is embedded in the slide groove 502 of the column 30 and slides along the slide groove 502. Therefore, the slush mold placed on the grid frame 503 is immersed in the cooling water along with the grid frame 503 for liquid cooling treatment.

[0027] (2) Air cooling After the slush mold is immersed in the cooling water along with the frame 503, the connecting rod 506 is driven by the electric push rod machine to move upward. At this time, the slush mold rises with the frame 503 to the reserved gap position between the top of the cooling chamber 201 and the liquid surface. Then, the blower is started, and the blower blows positive pressure airflow towards the slush toy to further accelerate the dissipation of heat from the mold surface.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rapid cooling structure for slush molds, characterized in that, include: Base; A liquid cooling assembly, comprising a cooling chamber and cooling water, wherein the cooling chamber is mounted on a base and the cooling water is placed inside the cooling chamber, and a pre-reserved gap is provided between the horizontal plane of the cooling water and the top of the cooling chamber; The columns are fixed to the top two sides of the cooling chamber; A suspension bracket, located above the cooling chamber and fixed to the top of the column; A support frame that slides along the edge of the column outside the column; A lifting assembly is provided at the bottom of the suspension frame, and the lifting end of the lifting assembly is connected to the support frame. An air-cooled assembly is provided at a reserved interval on both sides of the cooling chamber, wherein the air-cooled assembly is used to blow out positive pressure airflow.

2. The rapid cooling structure for slush molds according to claim 1, characterized in that, The support frame includes a slider, a groove, a space frame, a support rod, a wall panel, and multiple connecting rods, with the groove located on one side of the column.

3. The rapid cooling structure for slush molds according to claim 2, characterized in that, The grid frame is located inside the cooling chamber, the wall panels are fixed on both sides of the grid frame, and one end of the support rod is fixed to one side of the wall panel.

4. The rapid cooling structure for slush molds according to claim 3, characterized in that, The slider slides within the groove of the column, and the other end of the support rod is fixedly connected to the slider. Multiple connecting rods are respectively fixed between the wall panels and between the support rods.

5. The rapid cooling structure for slush molds according to claim 4, characterized in that, The lifting assembly includes an electric push rod mechanism, the top of which is fixed to the bottom of the suspension frame, and the drive end of which is fixed to the connecting rod.

6. The rapid cooling structure for slush molds according to claim 1, characterized in that, The air-cooled assembly includes a blower.

7. The rapid cooling structure for slush molds according to claim 1, characterized in that, The bottom of the suspension frame is equipped with a negative pressure fan.

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