A plastic processing air-cooled structure for injection molding

Abstract

This utility model relates to the field of air-cooling technology for injection molding, and provides an air-cooling structure for injection molding in plastic processing. The utility model includes an air-cooling box, inside which are an upper mold and a lower mold. Inside the air-cooling box are a first transmission assembly, a first air-cooling mechanism, and a second air-cooling mechanism, each including a second transmission assembly. The second transmission assembly is rotatably mounted inside the air-cooling box. A third transmission assembly is horizontally slidably mounted inside the air-cooling box, engaging with the corresponding second transmission assembly. Air-cooling hoses extending into the inner cavity are provided on one side of the air-cooling box. This utility model innovatively adopts a staged cooling design, which can cool the outer shell of the injection molding machine mold through the air-cooling mechanism and cool the inside of the mold during the mold opening stage, improving the overall cooling effect of the mold, significantly shortening the injection molding cycle, and thus improving the efficiency of plastic processing.

Description

Technical Field

[0001] This utility model belongs to the field of air-cooling technology for injection molding, and in particular relates to an air-cooling structure for injection molding in plastic processing. Background Technology

[0002] Injection molding is a highly efficient plastic processing technology. It involves heating and melting thermoplastics and then injecting the melted material into a precision mold. After cooling and solidification, the product is formed into the desired shape. The process includes material melting, injection, cooling, demolding, and post-processing. It has advantages such as high production efficiency, automation, high product precision, and the ability to manufacture complex shapes. It is widely used in kitchenware, appliance housings, toys, automotive parts, and medical devices, and is one of the most commonly used molding methods in plastic processing.

[0003] In the injection molding process of plastic processing, fans are typically used to cool and solidify the molded plastic products quickly. However, the air-cooled structures commonly used in plastic injection molding currently on the market have significant limitations: during use, they can only cool the outer shell of the injection mold, failing to effectively cool the interior. This incomplete cooling method directly results in poor overall cooling performance, which in turn increases the processing time of the plastic and ultimately leads to low overall efficiency in plastic processing. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing air-cooled structures for injection molding in plastic processing can only cool the outer shell of the injection mold, but cannot effectively cool the inside of the mold. This incomplete cooling method directly leads to poor overall cooling effect, which in turn prolongs the plastic processing time and ultimately results in low overall efficiency of plastic processing.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is an air-cooled structure for injection molding in plastic processing, including an air-cooling box. An upper mold and a lower mold are respectively arranged inside the air-cooling box. A first transmission assembly, a first air-cooling mechanism, and a second air-cooling mechanism are respectively installed inside the air-cooling box. The first transmission assembly includes a first helical gear plate that moves synchronously with the upper mold. A helical gear is meshed on one side of the first helical gear plate. Both the first and second air-cooling mechanisms include a second transmission assembly. The second transmission assembly is rotatably disposed inside the air-cooling box. A third transmission component is horizontally slidably arranged in the part, and the third transmission component meshes with the corresponding second transmission component. The helical gear meshes with the third transmission components on both its upper and lower sides. The second transmission components on the first air-cooling mechanism rotate in opposite directions to the second transmission components on the second air-cooling mechanism. A first air-cooling hose and a second air-cooling hose extending into the inner cavity are respectively arranged on one side of the air-cooling box. The front ends of the first air-cooling hose and the second air-cooling hose are fixed to the inner wall of the corresponding second transmission component. An inclined support component is installed inside the air-cooling box, and the inclined support component slides in cooperation with the inner wall of the air-cooling box.

[0006] The present invention is further configured such that: a lower support frame and an upper support frame are respectively provided inside the air-cooled box; the lower mold is installed on the top of the lower support frame; a square support rod is fixed at the bottom of the lower support frame; the square support rod slides through the bottom of the air-cooled box; a first support rod is fixed on each of the opposite sides of the lower support frame; and the upper mold is installed at the bottom of the upper support frame.

[0007] The present invention is further configured such that: a hydraulic cylinder is installed on the top of the air-cooled box, the output end of the hydraulic cylinder is fixedly connected to the upper support frame, a second support rod is fixed on one side of the upper support frame, one end of the second support rod is fixedly connected to the first helical tooth plate, a first limiting plate and a second limiting plate are fixed on the inner wall of the air-cooled box, the first limiting plate is provided with a shaft hole, a mounting groove and a guide groove, and the first helical tooth plate slides in cooperation with the guide groove on the first limiting plate.

[0008] The present invention is further configured such that: the second transmission component includes an arc-shaped toothed plate, and connecting rods are fixed at the four corners of the inner wall of the arc-shaped toothed plate. The connecting rods are rotatably disposed inside the mounting groove on the first limiting plate via a shaft. The front ends of the first air-cooled hose and the second air-cooled hose are both fixed on the inner wall of the corresponding arc-shaped toothed plate.

[0009] The present invention is further configured such that: the third transmission component includes a slide plate, and a straight tooth plate and a second helical tooth plate are respectively installed on opposite sides of the slide plate; one end of the slide plate slides through the side wall of the air-cooled box; the slide plate slides through the second limiting plate; the second helical tooth plate meshes with a helical gear; a transmission shaft is mounted on the inner side wall of the air-cooled box; the transmission shaft is fixedly connected to the helical gear; and the other end of the transmission shaft is rotatably connected to the shaft hole on the first limiting plate.

[0010] The present invention is further configured such that: an air supply device is installed on the outer wall of the air-cooled box, one air outlet of the air supply device is connected to a first air-cooled hose, and the other air outlet of the air supply device is connected to a second air-cooled hose; a first mounting hole and a second mounting hole are provided on the outer wall of the air-cooled box, the first air-cooled hose passes through the first mounting hole, and the second air-cooled hose passes through the second mounting hole.

[0011] The present invention is further configured such that: the inclined support assembly includes a front cover plate, and two support plates are fixedly connected to the front cover plate near the bottom position, and the inclined surface at the top of the support plate slides in cooperation with the first support rod.

[0012] This invention has the following advantages: The upper mold is moved downwards by a hydraulic cylinder, while the front cover and air-cooling box close simultaneously. The support plate presses against the first support rod, causing the lower mold to rise. After mold closing, raw material is injected. After injection molding, the air supply equipment cools the upper and lower mold shells through the first and second air-cooling hoses. When the mold opens, the front cover opens and the lower mold falls back down. The hydraulic cylinder moves the upper mold upwards, and through a series of transmission components, the first and second air-cooling hoses move to the right, approaching the mold at a certain angle to cool the interior of the mold, thus accelerating the cooling of the upper and lower molds. This achieves the cooling of the outer shell of the injection molding machine mold, and during the mold opening stage, the air-cooling hoses gradually approach the mold to cool the interior, improving the overall cooling effect of the mold, significantly shortening the injection molding cycle, and thus improving the efficiency of plastic processing.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the air-cooled structure for injection molding in plastic processing according to this utility model;

[0016] Figure 2 for Figure 1 The front view of the structure;

[0017] Figure 3 In this utility model Figure 1 Partial structural diagram;

[0018] Figure 4 This is a schematic diagram of the structure of the first limiting plate in this utility model;

[0019] Figure 5 This is another structural schematic diagram of the air-cooled structure for injection molding in plastic processing according to this utility model;

[0020] Figure 6 for Figure 5 The front view of the structure;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Air-cooled box; 2. First transmission assembly; 3. Second transmission assembly; 4. Third transmission assembly; 5. First limiting plate; 6. Transmission shaft; 7. Second limiting plate; 8. First air-cooling mechanism; 9. Second air-cooling mechanism; 10. Air supply equipment; 11. Hydraulic cylinder; 12. First support rod; 13. Inclined support assembly; 14. Square support rod; 15. Lower support frame; 16. Lower mold; 17. Upper mold; 18. Upper support frame; 19. First mounting hole; 20. Second mounting hole; 21. First helical gear plate; 22. Helical gear; 23. First air-cooled hose; 24. Second air-cooled hose; 25. Support plate; 26. Second support rod; 27. Shaft hole; 28. Mounting groove; 29. ​​Arc-shaped gear plate; 30. Connecting rod; 31. Shaft; 32. Slide plate; 33. Straight gear plate; 34. Second helical gear plate; 35. Front cover plate; 36. Guide groove. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] Please see Figure 1-6 This utility model relates to an air-cooled structure for injection molding in plastic processing, comprising an air-cooling box 1. An upper mold 17 and a lower mold 16 are respectively disposed inside the air-cooling box 1. A first transmission assembly 2, a first air-cooling mechanism 8, and a second air-cooling mechanism 9 are respectively installed inside the air-cooling box 1. The first transmission assembly 2 includes a first helical gear plate 21 that moves synchronously with the upper mold 17. A helical gear 22 is meshed on one side of the first helical gear plate 21. Both the first air-cooling mechanism 8 and the second air-cooling mechanism 9 include a second transmission assembly 3, which is rotatably disposed inside the air-cooling box 1. A third transmission assembly is horizontally slidably disposed inside the air-cooling box 1. 4. The third transmission component 4 meshes with the corresponding second transmission component 3. The helical gear 22 meshes with the third transmission components 4 on both its upper and lower sides. The second transmission component 3 on the first air-cooling mechanism 8 and the second transmission component 3 on the second air-cooling mechanism 9 rotate in opposite directions. The air-cooling box 1 is provided with a first air-cooling hose 23 and a second air-cooling hose 24 extending into its inner cavity on one side. The front ends of the first air-cooling hose 23 and the second air-cooling hose 24 are fixed to the inner wall of the corresponding second transmission component 3. An inclined support component 13 is installed inside the air-cooling box 1. The inclined support component 13 slides with the inner wall of the air-cooling box 1.

[0027] In this embodiment of the present invention, such as Figure 1 and Figure 2 As shown: The air-cooled box 1 is provided with a lower support frame 15 and an upper support frame 18. The lower mold 16 is installed on the top of the lower support frame 15. A square support rod 14 is fixed at the bottom of the lower support frame 15. The square support rod 14 slides through the bottom of the air-cooled box 1. First support rods 12 are fixed on both opposite sides of the lower support frame 15. The upper mold 17 is installed at the bottom of the upper support frame 18.

[0028] In this embodiment of the present invention, such as Figure 1 and Figure 4As shown: A hydraulic cylinder 11 is installed on the top of the air-cooled box 1. The output end of the hydraulic cylinder 11 is fixedly connected to the upper support frame 18. A second support rod 26 is fixed on one side of the upper support frame 18. One end of the second support rod 26 is fixedly connected to the first helical tooth plate 21. A first limiting plate 5 and a second limiting plate 7 are fixed on the inner wall of the air-cooled box 1. The first limiting plate 5 has a shaft hole 27, a mounting groove 28 and a guide groove 36. The first helical tooth plate 21 slides in cooperation with the guide groove 36 on the first limiting plate 5.

[0029] In this embodiment of the present invention, such as Figure 1 and Figure 3 As shown: The second transmission component 3 includes an arc-shaped toothed plate 29. Connecting rods 30 are fixed at the four corners of the inner wall of the arc-shaped toothed plate 29. The connecting rods 30 are rotatably disposed inside the mounting groove 28 on the first limiting plate 5 through the shaft 31. The front ends of the first air-cooled hose 23 and the second air-cooled hose 24 are fixed on the inner wall of the corresponding arc-shaped toothed plate 29.

[0030] In this embodiment of the present invention, such as Figure 3 and Figure 4 As shown: The third transmission component 4 includes a slide plate 32. A straight toothed plate 33 and a second helical toothed plate 34 are respectively installed on opposite sides of the slide plate 32. One end of the slide plate 32 slides through the side wall of the air-cooled box 1, and the slide plate 32 slides through the second limiting plate 7. The second helical toothed plate 34 meshes with a helical gear 22. A transmission shaft 6 is mounted on an inner side wall of the air-cooled box 1. The transmission shaft 6 is fixedly connected to the helical gear 22, and the other end of the transmission shaft 6 is rotatably connected to the shaft hole 27 on the first limiting plate 5.

[0031] In this embodiment of the present invention, such as Figure 3 As shown: An air supply device 10 is installed on the outer wall of the air-cooled box 1. One air outlet of the air supply device 10 is connected to a first air-cooled hose 23, and the other air outlet of the air supply device 10 is connected to a second air-cooled hose 24. A first mounting hole 19 and a second mounting hole 20 are provided on the outer wall of the air-cooled box 1. The first air-cooled hose 23 passes through the first mounting hole 19, and the second air-cooled hose 24 passes through the second mounting hole 20.

[0032] In this embodiment of the present invention, such as Figure 5 and Figure 6 As shown: The inclined support assembly 13 includes a front cover plate 35, and two support plates 25 are fixedly connected to the front cover plate 35 near the bottom. The inclined surface at the top of the support plate 25 is slidably engaged with the first support rod 12.

[0033] The working principle of this embodiment is as follows: During operation, the upper mold 17 is first moved downward by the hydraulic cylinder 11, and at the same time, the front cover plate 35 is moved to close with the air-cooling box 1. The support plate 25 is slidably engaged with the first support rod 12. The inclined surface of the support plate 25 exerts a squeezing effect on the first support rod 12, causing the lower mold 16 to rise upward. Thus, the upper mold 17 and the lower mold 16 are used together. At this time, the first air-cooling mechanism 8 and the second air-cooling mechanism 9 are both in the initial state. After the mold is closed, the raw material is injected into the mold. When the injection molding is completed after the predetermined time, the air supply device 10 is started. Air is supplied to the first air-cooling hose 23 and the second air-cooling hose 24 through the air supply device 10. The air flow output by the first air-cooling hose 23 and the second air-cooling hose 24 respectively cools the outer shell of the upper mold 17 and the lower mold 16 to achieve the heat dissipation effect. When the mold is opened after the predetermined time, the front cover plate 35 is opened, the support plate 25 is slidably engaged with the first support rod 12, the lower mold 16 falls back, and at the same time, the hydraulic cylinder 11 moves the upper mold 17 downward. As the upper mold 17 moves upward, the second support rod 26 drives the first helical gear plate 21 to move upward along the guide groove 36 on the first limiting plate 5. Since the first helical gear plate 21 is meshed with the helical gear 22, the upward movement of the first helical gear plate 21 will drive the helical gear 22 to rotate. Since the helical gear 22 is meshed with the second helical gear plate 34, the rotation of the helical gear 22 will drive the upper and lower second helical gear plates 34 to slide horizontally. Since the second helical gear plate 34 and the straight gear plate 33 are meshed... The straight toothed plate 33 and the arc-shaped toothed plate 29 are in a meshing state, which is fixedly connected to the slider 32. When the straight toothed plate 33 slides, it will drive the second transmission component 3 to rotate. Then the first air-cooling hose 23 and the second air-cooling hose 24, which are fixed on the two arc-shaped toothed plates 29 respectively, will move to the right and approach the upper mold 17 and the lower mold 16 respectively. After moving, they have a certain tilt angle, so that the interior of the upper mold 17 and the lower mold 16 can be cooled by air, thereby accelerating the cooling of the upper mold 17 and the lower mold 16.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cooling structure for injection molding in plastic processing, comprising a cooling box (1), wherein an upper mold (17) and a lower mold (16) are respectively disposed inside the cooling box (1), characterized in that: The air-cooled box (1) is equipped with a first transmission assembly (2), a first air-cooling mechanism (8), and a second air-cooling mechanism (9). The first transmission assembly (2) includes a first helical tooth plate (21) that moves synchronously with the upper mold (17). A helical gear (22) is meshed on one side of the first helical tooth plate (21). The first air-cooling mechanism (8) and the second air-cooling mechanism (9) both include a second transmission component (3). The second transmission component (3) is rotatably disposed inside the air-cooling box (1). A third transmission component (4) is horizontally slidably disposed inside the air-cooling box (1). The third transmission component (4) meshes with the corresponding second transmission component (3). The helical gear (22) meshes with the third transmission components (4) on its upper and lower sides. The second transmission component (3) on the first air-cooling mechanism (8) and the second transmission component (3) on the second air-cooling mechanism (9) rotate in opposite directions. The air-cooled box (1) is provided with a first air-cooled hose (23) and a second air-cooled hose (24) extending into its inner cavity on one side. The front ends of the first air-cooled hose (23) and the second air-cooled hose (24) are fixed to the inner wall of the corresponding second transmission component (3). The air-cooled box (1) is equipped with an inclined support assembly (13), which slides with the inner wall of the air-cooled box (1).

2. The air-cooled structure for injection molding in plastic processing according to claim 1, characterized in that: The air-cooled box (1) is provided with a lower support frame (15) and an upper support frame (18) respectively. The lower mold (16) is installed on the top of the lower support frame (15). A square support rod (14) is fixed at the bottom of the lower support frame (15). The square support rod (14) slides through the bottom of the air-cooled box (1). A first support rod (12) is fixed on both sides of the lower support frame (15). The upper mold (17) is installed at the bottom of the upper support frame (18).

3. The air-cooled structure for injection molding in plastic processing according to claim 2, characterized in that: A hydraulic cylinder (11) is installed on the top of the air-cooled box (1). The output end of the hydraulic cylinder (11) is fixedly connected to the upper support frame (18). A second support rod (26) is fixed on one side of the upper support frame (18). One end of the second support rod (26) is fixedly connected to the first helical tooth plate (21). A first limiting plate (5) and a second limiting plate (7) are fixed on the inner wall of the air-cooled box (1). The first limiting plate (5) has a shaft hole (27), a mounting groove (28) and a guide groove (36). The first helical tooth plate (21) slides in cooperation with the guide groove (36) on the first limiting plate (5).

4. The air-cooled structure for injection molding in plastic processing according to claim 3, characterized in that: The second transmission component (3) includes an arc-shaped toothed plate (29). Connecting rods (30) are fixed at the four corners of the inner wall of the arc-shaped toothed plate (29). The connecting rods (30) are rotatably mounted inside the mounting groove (28) on the first limiting plate (5) via a shaft (31). The front ends of the first air-cooled hose (23) and the second air-cooled hose (24) are fixed on the inner wall of the corresponding arc-shaped toothed plate (29).

5. The air-cooled structure for injection molding in plastic processing according to claim 4, characterized in that: The third transmission component (4) includes a slide plate (32). A straight tooth plate (33) and a second helical tooth plate (34) are respectively installed on opposite sides of the slide plate (32). One end of the slide plate (32) slides through the side wall of the air-cooled box (1). The slide plate (32) slides through the second limiting plate (7). The second helical tooth plate (34) meshes with a helical gear (22). A transmission shaft (6) is provided on the inner side wall of the air-cooled box (1). The transmission shaft (6) is fixedly connected to the helical gear (22). The other end of the transmission shaft (6) is rotatably connected to the shaft hole (27) on the first limiting plate (5).

6. The air-cooled structure for injection molding in plastic processing according to claim 5, characterized in that: An air supply device (10) is installed on the outer wall of the air-cooled box (1). One air outlet of the air supply device (10) is connected to a first air-cooled hose (23), and the other air outlet of the air supply device (10) is connected to a second air-cooled hose (24). A first mounting hole (19) and a second mounting hole (20) are provided on the outer wall of the air-cooled box (1). The first air-cooled hose (23) passes through the first mounting hole (19), and the second air-cooled hose (24) passes through the second mounting hole (20).

7. The air-cooled structure for injection molding in plastic processing according to claim 6, characterized in that: The inclined support assembly (13) includes a front cover plate (35), and two support plates (25) are fixedly connected to the front cover plate (35) near the bottom. The inclined surface at the top of the support plate (25) is slidably engaged with the first support rod (12).

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