Cooling device for hot runner mold

Abstract

The utility model relates to the technical field of cooling devices, in particular to a hot runner mold cooling device which comprises a mold body and a cooling-water machine body, a protective cover is fixedly installed on the top face of the cooling-water machine body through bolts, and a water inlet pipe and a water outlet pipe are fixedly connected to the top face of the cooling-water machine body. And the water inlet pipe and the water outlet pipe are rotationally connected with adapter pipes through rotary joints. Compared with the prior art, the connecting hose winding device has the advantages that the twisting control wheel drives the adapter pipe to rotate through the connecting rod, the connecting hose can be wound, the extra connecting hose outside can be stored in the protective cover, the exposed length of the connecting hose can be conveniently adjusted according to the distance between a cooling-water machine and a hot runner mold, and the service life of the connecting hose is prolonged. And the length, exposed to the outside, of the connecting hose can be reduced, large heat loss is prevented, a reverse threaded column can drive a sliding clamping plate to move downwards, the connecting hose can be clamped, and the wound connecting hose can be prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices, in particular to a cooling device for a hot runner mold. Background Art

[0002] The cooling device of a hot runner mold is an important part of the hot runner system. The cooling device is a device or system designed to cool the hot runner mold and its related components during the plastic injection process. By rapid cooling, the residence time of the plastic in the mold can be shortened, and the production cycle can be shortened.

[0003] When the hot runner mold is working, the component for cooling is usually a chiller. The chiller is connected to the cooling port of the hot runner mold through a connecting pipe, so that a cycle is formed between the chiller and the cooling pipeline of the hot runner mold, thereby achieving the purpose of cooling the hot runner mold. However, in actual work, the length of the connecting pipe between the two devices needs to be appropriate. If it is too short, the two devices cannot be connected; if it is too long, the connecting pipe is exposed to the outside more, and large heat loss is likely to occur. Due to limitations such as the site and equipment layout, the distance between the chiller and the hot runner mold is uncertain, but the length of the pipe supporting the chiller is usually fixed, and it is not convenient to adjust according to the distance between the chiller and the hot runner mold. Therefore, a cooling device for a hot runner mold is needed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model aims to solve at least one of the technical defects.

[0005] For this reason, one purpose of the utility model is to provide a cooling device for a hot runner mold to solve the problems mentioned in the background art and overcome the deficiencies existing in the prior art.

[0006] To achieve the above object, an embodiment of one aspect of the present utility model provides a hot runner mold cooling device, including a mold main body and a chiller main body. A protective cover is fixedly installed on the top surface of the chiller main body by bolts. A water inlet pipe and a water outlet pipe are fixedly connected to the top surface of the chiller main body. Both the water inlet pipe and the water outlet pipe are rotatably connected to a rotating pipe through a rotary joint. The water inlet pipe, the water outlet pipe, and the rotating pipe are all located inside the protective cover. A rotating frame is fixedly installed on the top surface of the chiller main body by bolts. The rotating pipe is rotatably connected to the rotating frame. A connecting hose is fixedly connected to the outer surface of the rotating pipe. One end of the connecting hose away from the rotating pipe is connected to the mold main body. An avoidance groove is formed on the side surface of the protective cover. A fixed clamping plate is fixedly connected inside the avoidance groove. A sliding clamping plate is slidably connected inside the avoidance groove. The fixed clamping plate and the sliding clamping plate are corresponding up and down. The connecting hose is located between the fixed clamping plate and the sliding clamping plate. A threaded column is threadedly connected to one side of the protective cover. The top of the threaded column is rotatably connected to the sliding clamping plate through a bearing.

[0007] Preferably, one end of the rotating pipe is fixedly connected to a connecting rod. One end of the connecting rod away from the rotating pipe is fixedly connected to a control wheel. The connecting rod is rotatably connected to the protective cover.

[0008] Preferably, a clamping groove is formed on the top surface of the chiller main body. A clamping plate is fixedly connected to the bottom surface of the rotating frame. The clamping plate is slidably connected to the chiller main body through the clamping groove.

[0009] Preferably, two baffle plates are fixedly connected to the outer surface of the rotating pipe. The connecting hose is located between the two baffle plates. The baffle plates are slidably connected to the rotating frame.

[0010] Preferably, a limiting ring is fixedly connected to the top surface of the chiller main body. The limiting ring is located inside the protective cover. The connecting hose is slidably connected to the limiting ring.

[0011] Preferably, two guide rods are fixedly connected to the top surface of the sliding clamping plate. The two guide rods are symmetrically distributed on both sides of the threaded column. The guide rods are slidably connected to the protective cover.

[0012] Compared with the prior art, the advantages and beneficial effects of the present utility model are as follows:

[0013] When it is necessary to cool the hot runner mold, the threaded column can be rotated. Through threaded transmission, the sliding clamping plate can be driven to move upward, thereby unlocking the connection hose. Subsequently, the connection hose can be pulled to move it outward, and then it is connected to the cooling pipeline of the hot runner mold. When pulling the connection hose, the connection hose will slide within the limit ring, which can limit the movement of the connection hose. Subsequently, by turning the control wheel, the rotating pipe is driven to rotate through the connecting rod, and the connection hose can be wound up. The excess connection hose outside can be stored inside the protective cover. This not only facilitates adjusting the length of the exposed connection hose according to the distance between the chiller and the hot runner mold, but also reduces the length of the connection hose exposed to the outside, preventing significant heat loss. Moreover, reversing the threaded column can drive the sliding clamping plate to move downward, clamping the connection hose, and preventing the wound connection hose from loosening. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the assembly of the present utility model;

[0015] Figure 2 is a schematic structural view of the first perspective of the chiller main body of the present utility model;

[0016] Figure 3 is a schematic structural view of the second perspective of the chiller main body of the present utility model;

[0017] Figure 4 is a schematic structural view of the third perspective of the chiller main body of the present utility model;

[0018] Figure 5 is a schematic structural view of the protective cover of the present utility model;

[0019] Figure 6 is a schematic structural view of the rotating frame of the present utility model.

[0020] In the figure: 1 - mold main body, 2 - chiller main body, 3 - protective cover, 4 - water inlet pipe, 5 - water outlet pipe, 6 - rotating pipe, 7 - rotating frame, 8 - connection hose, 9 - avoidance groove, 10 - fixed clamping plate, 11 - sliding clamping plate, 12 - threaded column, 13 - connecting rod, 14 - control wheel, 15 - clamping groove, 16 - clamping plate, 17 - baffle, 18 - limit ring, 19 - guide rod. Detailed Embodiment

[0021] The following further describes the present utility model with reference to the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0022] Such as Figures 1 to 6As shown in the figure, a cooling device for a hot runner mold includes a mold body 1 and a chiller body 2. A protective cover 3 is fixedly installed on the top surface of the chiller body 2 by bolts. A water inlet pipe 4 and a water outlet pipe 5 are fixedly connected to the top surface of the chiller body 2. The water inlet pipe 4 and the water outlet pipe 5 are both rotatably connected to a rotary connecting pipe 6 through a rotary joint. The water inlet pipe 4, the water outlet pipe 5, and the rotary connecting pipe 6 are all located inside the protective cover 3. A rotating frame 7 is fixedly installed on the top surface of the chiller body 2 by bolts. The rotary connecting pipe 6 is rotatably connected to the rotating frame 7. A connecting hose 8 is fixedly connected to the outer surface of the rotary connecting pipe 6. One end of the connecting hose 8 away from the rotary connecting pipe 6 is connected to the mold body 1. An avoidance groove 9 is formed on the side surface of the protective cover 3. A fixed clamping plate 10 is fixedly connected inside the avoidance groove 9. A sliding clamping plate 11 is slidably connected inside the avoidance groove 9. The fixed clamping plate 10 and the sliding clamping plate 11 are corresponding up and down. The connecting hose 8 is located between the fixed clamping plate 10 and the sliding clamping plate 11. A threaded column 12 is threadedly connected to one side of the protective cover 3. The top of the threaded column 12 is rotatably connected to the sliding clamping plate 11 through a bearing.

[0023] As an alternative technical solution of the present utility model, one end of the rotary connecting pipe 6 is fixedly connected to a connecting rod 13. The end of the connecting rod 13 away from the rotary connecting pipe 6 is fixedly connected to a control wheel 14. The connecting rod 13 is rotatably connected to the protective cover 3. By winding up the connecting hose 8, the extra connecting hose 8 outside can be stored inside the protective cover 3. This not only facilitates adjusting the length of the exposed connecting hose 8 according to the distance between the chiller and the hot runner mold, but also can reduce the length of the connecting hose 8 exposed to the outside and prevent large heat loss.

[0024] As an alternative technical solution of the present utility model, a clamping groove 15 is formed on the top surface of the chiller body 2. A clamping plate 16 is fixedly connected to the bottom surface of the rotating frame 7. The clamping plate 16 is slidably connected to the chiller body 2 through the clamping groove 15. The rotating frame 7 is clamped to the chiller body 2 through the clamping plate 16, which can make the installation of the rotating frame 7 more firm.

[0025] As an alternative technical solution of the present utility model, two baffle plates 17 are fixedly connected to the outer surface of the rotary connecting pipe 6. The connecting hose 8 is located between the two baffle plates 17. The baffle plates 17 are slidably connected to the rotating frame 7. The two baffle plates 17 can limit the wound connecting hose 8.

[0026] As an alternative technical solution of the present utility model, a limiting ring 18 is fixedly connected to the top surface of the chiller body 2. The limiting ring 18 is located inside the protective cover 3. The connecting hose 8 is slidably connected to the limiting ring 18. When pulling the connecting hose 8, the connecting hose will slide inside the limiting ring 18, which can limit the movement of the connecting hose.

[0027] As an alternative technical solution of the present utility model, two guide rods 19 are fixedly connected to the top surface of the sliding clamping plate 11. The two guide rods 19 are symmetrically distributed on both sides of the threaded column 12. The guide rods 19 are slidably connected to the protective cover 3. The guide rods 19 can limit the movement of the sliding clamping plate 11, making its movement more stable.

[0028] A cooling device for a hot runner mold has the following working principle:

[0029] 1): When it is necessary to cool the hot runner mold, the threaded column 12 can be rotated. Through screw drive, the sliding clamping plate 11 can be driven to move upward, and then the locking of the connecting hose 8 can be released.

[0030] 2): Pull the connecting hose 8 to move it outward, and then connect it to the cooling pipeline of the hot runner mold. When pulling the connecting hose 8, the connecting hose will slide within the limit ring 18.

[0031] 3): Twist the control wheel 14 to drive the adapter pipe 6 to rotate through the connecting rod 13, and the connecting hose 8 can be wound up. The excess connecting hose 8 outside can be stored inside the protective cover 3. Reversing the threaded column 12 can drive the sliding clamping plate 11 to move downward, and the connecting hose 8 can be clamped.

[0032] In summary, for this cooling device of the hot runner mold, when it is necessary to cool the hot runner mold, the threaded column 12 can be rotated. Through screw drive, the sliding clamping plate 11 can be driven to move upward, and then the locking of the connecting hose 8 can be released. Subsequently, the connecting hose 8 can be pulled to move it outward and then connected to the cooling pipeline of the hot runner mold. When pulling the connecting hose 8, the connecting hose will slide within the limit ring 18, which can limit the movement of the connecting hose. Then, twist the control wheel 14 to drive the adapter pipe 6 to rotate through the connecting rod 13, and the connecting hose 8 can be wound up. The excess connecting hose 8 outside can be stored inside the protective cover 3. This not only facilitates adjusting the exposed length of the connecting hose 8 according to the distance between the chiller and the hot runner mold, but also can reduce the length of the connecting hose 8 exposed to the outside, preventing large heat loss. Moreover, reversing the threaded column 12 can drive the sliding clamping plate 11 to move downward, and the connecting hose 8 can be clamped, preventing the wound connecting hose 8 from loosening.

Claims

1. A hot runner mold cooling device, characterized in that: The invention comprises a mold body (1) and a chiller body (2); a protective cover (3) is fixedly installed on the top surface of the chiller body (2) by means of bolts; a water inlet pipe (4) and a water outlet pipe (5) are fixedly connected to the top surface of the chiller body (2); the water inlet pipe (4) and the water outlet pipe (5) are both rotatably connected to a transfer pipe (6) through a rotating joint; the water inlet pipe (4), the water outlet pipe (5) and the transfer pipe (6) are all located inside the protective cover (3); a rotating frame (7) is fixedly installed on the top surface of the chiller body (2) by means of bolts; the transfer pipe (6) is rotatably connected to the rotating frame (7); and a connecting hose (6) is fixedly connected to the outer surface of the transfer pipe (6) 8), one end of the connecting hose (8) away from the transfer tube (6) is connected to the mold body (1), the side of the protective cover (3) is provided with an avoidance groove (9), the inside of the avoidance groove (9) is fixedly connected with a fixed clamping plate (10), the inside of the avoidance groove (9) is slidably connected with a sliding clamping plate (11), the fixed clamping plate (10) and the sliding clamping plate (11) correspond to each other up and down, the connecting hose (8) is located between the fixed clamping plate (10) and the sliding clamping plate (11), one side of the protective cover (3) is threadedly connected with a threaded column (12), and the top of the threaded column (12) is rotatably connected to the sliding clamping plate (11) through a bearing.

2. A hot runner mold cooling device according to claim 1, characterized in that: One end of the transfer tube (6) is fixedly connected to a connecting rod (13), one end of the connecting rod (13) away from the transfer tube (6) is fixedly connected to a control wheel (14), and the connecting rod (13) is rotatably connected to the protective cover (3).

3. A hot runner mold cooling device according to claim 2, characterized in that: The top surface of the chiller body (2) is provided with a card slot (15), the bottom surface of the rotating frame (7) is fixedly connected with a card plate (16), and the card plate (16) is slidably connected to the chiller body (2) via the card slot (15).

4. A hot runner mold cooling device according to claim 3, characterized in that: Two baffles (17) are fixedly connected to the outer surface of the transfer tube (6), the connecting hose (8) is located between the two baffles (17), and the baffle (17) is slidably connected to the rotating frame (7).

5. A hot runner mold cooling device according to claim 4, characterized in that: A limit ring (18) is fixedly connected to the top surface of the chiller body (2); the limit ring (18) is located inside the protective cover (3); and the connecting hose (8) is slidably connected to the limit ring (18).

6. A hot runner mold cooling device according to claim 5, characterized in that: Two guide rods (19) are fixedly connected to the top surface of the sliding clamping plate (11), and the two guide rods (19) are symmetrically distributed on both sides of the threaded column (12). The guide rods (19) are slidably connected to the protective cover (3).

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