Cooling device for injection molding part production

By designing a hollow roller conveyor and a cold air blower cooling device inside the cooling box, the problem of slow cooling speed of the injection molding machine was solved, achieving uniform and efficient cooling of the injection molded parts, reducing manual labor intensity and improving work efficiency.

CN223972077UActive Publication Date: 2026-03-06HEBEI DESHU PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing injection molding machine cooling devices have slow cooling speed and low cooling efficiency, and require manual movement of the injection molded parts multiple times, resulting in high labor intensity and low work efficiency.

Method used

A cooling device was designed, comprising a cooling box, liftable support legs, hollow rollers, V-shaped guide plates, and a cold air blower. The injection molded parts are conveyed by the hollow rollers and cooled evenly by the cold air blown by the cold air blower. The device is sealed by a sealing baffle and a soft curtain, and is suitable for injection molded parts of different sizes.

Benefits of technology

It achieves uniform cooling of injection molded parts, reduces manual labor intensity, and improves cooling efficiency and work efficiency. It is suitable for injection molded parts of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cooling device for injection molding part production, which comprises a cooling box body and lifting support legs, the left end and the right end of the cooling box body are provided with an inlet and an outlet, a plurality of hollow carrier rollers are rotatably connected in the cooling box body, air outlet holes are arranged around the hollow carrier rollers, a plurality of V-shaped guide plates are arranged in the cooling box body, and the V-shaped guide plates are connected with the lifting support legs. A rotary connector is installed at one end of the hollow carrier roller, an air conveying pipe is installed at the front end of the cooling box body, a fixed bottom plate is installed on the lifting supporting legs, an air cooler is installed on the fixed bottom plate, a conical hopper is installed at the air outlet end of the air cooler, and one end of the conical hopper communicates with an air supply hose. And one end of the air supply hose is communicated with the air delivery pipe. The injection molding part cooling device has the advantages that injection molding parts can be evenly cooled, the cooling effect is improved, air blowing cooling can be carried out in the conveying process, the injection molding parts do not need to be moved many times, the labor intensity of workers is reduced, the working efficiency is improved, and the injection molding part cooling device is suitable for injection molding parts of different sizes.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding production technology, specifically a cooling device for injection molded parts production. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. During the setting process, it is necessary to wait for the molded part to cool and solidify.

[0003] Utility model application CN201921259946.4 discloses a cooling and shaping device for air conditioner casing production. The device uses a front positioning plate, a side positioning plate, and a main positioning plate to position the air conditioner casing on a support plate. The piston rod of a lifting cylinder retracts, causing the shaping plate to rise. The inclined surface of the shaping plate then fits against the inclined surface of the inner wall of the air conditioner casing, thus shaping the casing. Multiple chassis fans, when powered on, quickly dissipate the heat from the freshly injection-molded air conditioner casing.

[0004] The aforementioned device cools the injection molded parts by blowing air through a fan. The injection molded parts are at a high temperature, and the air blown by the fan is hot air, resulting in a slow cooling speed. Only one injection molded part can be cooled at a time, and after cooling, it needs to be moved and collected manually again. This is labor-intensive, time-consuming, and inefficient. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems by designing a cooling device for injection molding production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cooling device for injection molding production includes a cooling box and liftable support legs. The liftable support legs are installed at the four corners of the bottom of the cooling box. The cooling box has inlets and outlets at its left and right ends. Multiple hollow rollers are rotatably connected inside the cooling box, with both ends of the hollow rollers extending through the cooling box. Air outlets are provided around the hollow rollers. Multiple V-shaped guide plates are installed inside the cooling box, located below the hollow rollers. A rotating joint is installed at one end of each hollow roller. An air supply pipe is installed at the front end of the cooling box. The end of the rotating joint away from the hollow roller is fixedly connected to the air supply pipe. A fixed base plate is installed on the liftable support legs. A cold air fan is installed on the fixed base plate. A conical bucket is installed at the air outlet of the cold air fan. One end of the conical bucket is connected to an air supply hose, and one end of the air supply hose is connected to the air supply pipe.

[0008] Furthermore, a sealing baffle is rotatably connected to one side of the inlet and outlet. Multiple soft leather curtains are installed at the bottom of the sealing baffle, and a bar magnet is installed at the bottom of the soft leather curtain. The bar magnet is magnetically connected to the cooling box.

[0009] Furthermore, a motor mounting bracket is installed on the cooling box, a drive motor is installed on the motor mounting bracket, a drive sprocket is installed on the output end of the drive motor, and two driven sprockets are installed on the other end of the hollow idler roller. The driven sprockets on adjacent hollow idler rollers form a group, and each group of driven sprockets is connected by a driven chain. The driven sprocket on the side closer to the drive sprocket is connected to the drive sprocket by a drive chain.

[0010] Furthermore, an exhaust port is provided on one side of the top wall of the cooling box, an exhaust fan is installed on the exhaust port, and an air guide plate is installed on the top wall of the inner body of the cooling box, with the air guide plate located on one side of the exhaust port.

[0011] Furthermore, the bottom end of the sealing baffle extends to the center of the inlet and outlet, and the bottom end of the soft leather curtain extends beyond the bottom end of the inlet and outlet.

[0012] Furthermore, the air guide plate is composed of multiple inverted V-shaped plates connected together.

[0013] Compared with existing technologies, this technical solution has the following beneficial effects:

[0014] The injection molded parts are conveyed by hollow rollers, while cold air is blown onto them through air vents. The downward-facing air vents blow onto V-shaped guide plates, which guide the cold air upwards, filling the cooling chamber with cold air and ensuring uniform cooling of the injection molded parts, thus improving the cooling effect. This method allows for air cooling of the injection molded parts during conveying, eliminating the need for repeated movement of the parts, reducing manual labor intensity, and increasing work efficiency.

[0015] The inlet and outlet are sealed by a sealing baffle and a soft curtain to prevent cold air leakage from the cooling box. When the injection molded part enters or exits the inlet and outlet, the injection molded part pushes against the soft curtain, breaking the magnetic connection between the bar magnet on the soft curtain and the cooling box. The soft curtain then bends, allowing the injection molded part to pass through. When the injection molded part is large, it can push the sealing baffle to rotate, making it suitable for injection molded parts of different sizes, improving applicability and providing good sealing effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a cooling device for injection molding production according to the present invention.

[0017] Figure 2 This is a cross-sectional view of the cooling box.

[0018] Figure 3 This is a top view of the cooling box.

[0019] Figure 4 This is a diagram showing the connection state between the driven gear and the driving gear.

[0020] Figure 5 for Figure 2 A magnified view of a portion of point A in the middle.

[0021] Figure 6 An enlarged front view of the sealing baffle and the soft leather curtain.

[0022] In the diagram: 1. Cooling box; 2. Liftable support legs; 3. Inlet / outlet; 4. Hollow idler roller; 5. Air outlet; 6. V-shaped guide plate; 7. Rotary joint; 8. Air supply pipe; 9. Fixed base plate; 10. Air cooler; 11. Conical bucket; 12. Air supply hose; 13. Sealing baffle; 14. Soft leather curtain; 15. Bar magnet; 16. Motor mounting base; 17. Drive motor; 18. Drive sprocket; 19. Driven sprocket; 20. Driven chain; 21. Drive chain; 22. Exhaust port; 23. Exhaust fan; 24. Air guide plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] This utility model provides, for example Figure 1-6The cooling device shown includes a cooling box 1 and liftable support legs 2. The liftable support legs 2 are installed at the four corners of the bottom of the cooling box 1. The left and right ends of the cooling box 1 are provided with inlet and outlet 3. Multiple hollow rollers 4 are rotatably connected inside the cooling box 1. The two ends of the hollow rollers 4 extend through the cooling box 1. The hollow rollers 4 are provided with air outlet holes 5 around their perimeter. Multiple V-shaped guide plates 6 are installed inside the cooling box 1. The V-shaped guide plates 6 are located below the hollow rollers 4. A rotating joint 7 is installed at one end of the hollow rollers 4. An air supply pipe 8 is installed at the front end of the cooling box 1. The end of the rotating joint 7 away from the hollow rollers 4 is fixedly connected to the air supply pipe 8. A fixed base plate 9 is installed on the liftable support legs 2. A cold air fan 10 is installed on the fixed base plate 9. A conical bucket 11 is installed at the air outlet end of the cold air fan 10. One end of the conical bucket 11 is connected to an air supply hose 12. One end of the air supply hose 12 is connected to the air supply pipe 8.

[0026] The injection molded part is placed into the cooling chamber 1 through inlet / outlet 3, and the part is positioned on the hollow roller 4. The hollow roller 4 begins to rotate, conveying the injection molded part. Simultaneously, the air cooler 10 starts working, cooling the air. The cold air enters the conical hopper 11, where it is collected. The cold air in the conical hopper 11 then flows through the air supply hose 12 into the air delivery pipe 8. The cold air in the air delivery pipe 8 then flows through the rotating joint 7 into the hollow roller 4. The rotating joint 7 allows the hollow roller 4 to rotate without obstructing the air supply. The cold air inside the hollow roller 4 blows onto the injection molded part through the air outlet 5. The downward-facing air outlet 5 blows onto the V-shaped guide plate 6, which guides the cold air upwards, filling the cooling chamber 1 with cold air and ensuring uniform cooling of the injection molded part, thus improving the cooling effect. The injection molded parts can be cooled by blowing air during the transportation process, eliminating the need to move the injection molded parts multiple times, reducing manual labor intensity and improving work efficiency.

[0027] Refer to the instruction manual appendix Figure 2 Included with instruction manual Figure 6 A sealing baffle 13 is rotatably connected to one side of the inlet / outlet 3. Multiple soft leather curtains 14 are installed at the bottom of the sealing baffle 13. A bar magnet 15 is installed at the bottom of the soft leather curtain 14. The bar magnet 15 is magnetically connected to the cooling box 1.

[0028] The inlet and outlet 3 are sealed by the sealing baffle 13 and the soft curtain 14 to prevent cold air leakage from the cooling box 1. When the injection molded part enters or exits the inlet and outlet 3, the injection molded part pushes the soft curtain 14, and the bar magnet 15 on the soft curtain 14 disconnects from the cooling box 1, causing the soft curtain 14 to bend and allow the injection molded part to pass through. When the injection molded part is large, it can push the sealing baffle 13 to rotate, making it suitable for injection molded parts of different sizes, improving applicability and providing a good sealing effect.

[0029] Refer to the instruction manual appendix Figure 3 Included with instruction manual Figure 4 A motor mounting base 16 is installed on the cooling box 1, and a drive motor 17 is installed on the motor mounting base 16. A drive sprocket 18 is installed on the output end of the drive motor 17. Two driven sprockets 19 are installed on the other end of the hollow idler roller 4. The driven sprockets 19 on adjacent hollow idler rollers 4 form a group. Each group of driven sprockets 19 is connected by a driven chain 20. The driven sprocket 19 on the side closer to the drive sprocket 18 is connected to the drive sprocket 18 through a drive chain 21.

[0030] The drive motor 17 starts working, and the output end of the drive motor 17 drives the drive sprocket 18 to rotate. The drive sprocket 18 is connected to the driven sprocket 19 on the hollow idler roller 4 through the drive chain 21. The drive sprocket 18 drives the driven sprocket 19 at one end to rotate through the driven sprocket 19. Adjacent driven sprockets 19 are connected through the driven chain 20, so that all the driven sprockets 19 rotate. The driven sprockets 19 drive the hollow idler roller 4 to rotate to transport the injection molded parts.

[0031] Refer to the instruction manual appendix Figure 2 The cooling box 1 has an exhaust port 22 on one side of the top wall, and an exhaust fan 23 is installed on the exhaust port 22. An air guide plate 24 is installed on the inner top wall of the cooling box 1, and the air guide plate 24 is located on one side of the exhaust port 22.

[0032] Hot air flows upwards, and the hot air inside the cooling box 1 flows to the exhaust port 22. The exhaust fan 23 starts to work to exhaust the hot air inside the cooling box 1. When the cold air blows onto the air guide plate 24, the cold air flows downwards through the air guide plate 24.

[0033] Refer to the instruction manual appendix Figure 2 Included with instruction manual Figure 6 The bottom end of the sealing baffle 13 extends to the center of the inlet / outlet 3, and the bottom end of the soft leather curtain 14 extends beyond the bottom end of the inlet / outlet 3.

[0034] The sealing baffle 13 and the soft curtain 14 have a larger area than the inlet and outlet 3, which can effectively seal the inlet and outlet 3 and improve the sealing effect.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cooling device for injection molding part production, comprising a cooling box body (1) and liftable supporting legs (2), the liftable supporting legs (2) are installed at the four corners of the bottom of the cooling box body (1), and the left and right ends of the cooling box body (1) are provided with inlets and outlets (3), characterized in that, The hollow carrier roller (4) is provided with air outlet holes (5) around, a plurality of V-shaped guide plates (6) are installed in the cooling box (1), the V-shaped guide plates (6) are located below the hollow carrier roller (4), a rotating joint (7) is installed at one end of the hollow carrier roller (4), a gas conveying pipe (8) is installed at the front end of the cooling box (1), the rotating joint (7) is fixedly connected with the gas conveying pipe (8) at the end away from the hollow carrier roller (4), a fixed bottom plate (9) is installed on the liftable supporting leg (2), a cold air fan (10) is installed on the fixed bottom plate (9), a conical hopper (11) is installed at the air outlet end of the cold air fan (10), a gas supply hose (12) is communicated at one end of the conical hopper (11), and the gas supply hose (12) is communicated with the gas conveying pipe (8) at one end.

2. The cooling device for injection-molded parts according to claim 1, characterized in that A sealing baffle (13) is rotatably connected on one side of the inlet and outlet (3), a plurality of soft leather curtains (14) are installed at the bottom of the sealing baffle (13), a strip-shaped magnet (15) is installed at the bottom of the soft leather curtain (14), and the strip-shaped magnet (15) is magnetically connected with the cooling box (1).

3. The cooling device for injection-molded parts according to claim 1, characterized in that A motor fixing seat (16) is installed on the cooling box (1), a driving motor (17) is installed on the motor fixing seat (16), a driving sprocket (18) is installed at the output end of the driving motor (17), two driven sprockets (19) are installed at the other end of the hollow carrier roller (4), the driven sprockets (19) on adjacent hollow carrier rollers (4) form a group, each group of driven sprockets (19) is connected through a driven chain (20), and the driven sprocket (19) on the side close to the driving sprocket (18) is connected with the driving sprocket (18) through a driving chain (21).

4. The cooling device for injection-molded parts according to claim 1, characterized in that An air outlet (22) is arranged on one side of the top wall of the cooling box (1), an exhaust fan (23) is installed on the air outlet (22), a wind guide plate (24) is installed on the inner top wall of the cooling box (1), and the wind guide plate (24) is located on one side of the air outlet (22).

5. The cooling device for injection-molded parts according to claim 2, characterized in that The bottom end of the sealing baffle (13) extends to the center of the inlet and outlet (3), and the bottom end of the soft leather curtain (14) exceeds the bottom end of the inlet and outlet (3).

6. The cooling device for injection-molded parts according to claim 4, characterized in that The wind guide plate (24) is connected by a plurality of inverted V-shaped plates.

Citation Information

Patent Citations

  • Cooling shaping device for air conditioner shell production

    CN210552849U