Cooling device for injection molding of automobile parts

Abstract

The utility model relates to the technical field of automobiles, in particular to a cooling device for injection molding of automobile parts. The partition plate is fixedly connected to the inner side of the base; the supporting plate is arranged on the outer side of the top end of the partition plate and fixedly connected with the base, and a mold is clamped to the outer side of the top end of the supporting plate; the two-way cooling mechanisms are symmetrically arranged on the two sides of the supporting plate and connected with the base; the backflow assembly is fixedly connected to the outer side of the bottom end of the partition plate and connected with the partition plate; wherein the two-way cooling mechanism comprises a liquid guide assembly, a spraying assembly and an air blowing assembly, by arranging the two-way cooling mechanism and cooperating with the backflow assembly, circulating cooling of the mold can be completed, the two sides are synchronously conducted, the heat dissipation efficiency is greatly improved, meanwhile, heat dissipation of multiple means can be conducted, the heat dissipation uniformity is further guaranteed, and the heat dissipation effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a cooling device for automobile part injection molding. Background Technique

[0002] An automobile is mainly used for carrying passengers and their personal luggage and temporary items in its design and technical characteristics. Including the driver's seat, a passenger car has no more than nine seats at most. Passenger cars are divided into the following eleven models, mainly including ordinary passenger cars, convertible passenger cars, luxury passenger cars, small passenger cars, convertibles, hatchback passenger cars, station wagons, multi-purpose passenger cars, stub-nosed passenger cars, off-road passenger cars, and special-purpose passenger cars.

[0003] Most of the existing cooling devices for injection molds use a tube cooling method in actual use. This method requires a long cooling time, has low cooling efficiency, increases the production cost of each part, reduces the output of parts, and affects the progress of subsequent work. Therefore, in view of the above situation, there is an urgent need to develop a cooling device for automobile part injection molding to overcome the deficiencies in current practical applications. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cooling device for automobile part injection molding to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cooling device for automobile part injection molding includes: a base; a partition board, which is fixedly connected and arranged inside the base and is used to cooperate with the base to receive cooling water; a support board, which is arranged outside the top of the partition board and is fixedly connected to the base. A mold is clamped and arranged outside the top of the support board; a two-way cooling mechanism, which is symmetrically arranged on both sides of the support board and is connected to the base, and is used to cooperate with the cooling water arranged inside the base to complete multiple heat absorption and cooling of the mold; a reflux assembly, which is fixedly connected and arranged outside the bottom of the partition board and is connected to the partition board; wherein, the two-way cooling mechanism includes: a liquid guiding assembly, a spraying assembly and a blowing assembly. The liquid guiding assembly is arranged outside the partition board and is fixedly connected to the inner wall of the bottom of the base. The liquid guiding assembly is also connected to the spraying assemblies symmetrically arranged on both sides of the support board. A blowing assembly is arranged on the spraying assembly, and the blowing assembly is connected to the spraying assembly and is used to increase the pressure of the cooling water and realize the swing of the spraying assembly.

[0007] As a further solution of the utility model: the liquid guiding component includes a support pipe, a shunt pipe and a first water pump. The first water pump is fixedly connected to the inner bottom of the base. The output end of the first water pump is connected to the water outlet pipe. Shunt pipes are fixedly connected to the pipe walls on both sides of the water outlet pipe. The other end of the shunt pipe is fixedly connected to the support pipe. The support pipe is fixedly connected to the partition board and is connected to the spraying component.

[0008] As a further solution of the utility model: the spraying component includes a spraying box, a fixed sleeve, a spraying pipe and a gear. The spraying box is arranged between the output ends on both sides of the support pipe. Flow guiding openings are arranged on the box walls on both sides of the spraying box. Fixed sleeves fixedly connected to the spraying box are arranged outside the flow guiding openings. The fixed sleeves are sleeved outside the output ends of the support pipe and are rotationally connected to the support pipe. A gear connected to the air blowing component is fixedly connected to the outside of one of the fixed sleeves and is used to cooperate with the air blowing component to realize the swinging of the spraying box. A plurality of spraying pipes are fixedly connected to the box wall of the spraying box close to the support plate. The spraying box is also connected to the air blowing component.

[0009] As a further solution of the utility model: the air blowing component includes an air guiding box, a fixed frame, a tooth seat, a guiding frame, a fan, a driving rod, a control pipe, a rubber pipe, a transmission pipe, a control box, a piston pipe, a sliding frame, an electric motor, a mounting frame, a purification box and an air guide pipe. The air guiding box is fixedly connected to the outside of the top of the spraying box. A mounting frame is fixedly connected to the outside of the top of the air guiding box. An electric motor is fixedly connected to the mounting frame. The output end of the electric motor is fixedly connected to a driving rod leading to the inside of the air guiding box. The driving rod is fixedly connected to a fan arranged inside the air guiding box. A purification box is fixedly connected to the outside of the top of the air guiding box. A filter layer is clamped inside the purification box. An air inlet pipe is fixedly connected to the box wall of the purification box. The other box wall is connected to the air guiding box through an air delivery pipe. An air guide pipe is fixedly connected to the bottom box wall of the air guiding box. The other end of the air guide pipe is connected to the spraying box and is fixedly connected with a one-way valve inside. A cam is also fixedly connected to the outside of the driving rod. A sliding frame is abutted against the outside of the cam. The sliding frame is slidably connected to the frame wall of the mounting frame. A spring is fixedly connected between the sliding frame and the mounting frame. A control board is fixedly connected to the sliding frame. A control box fixedly connected to the spraying box is arranged outside the control board. A plurality of piston pipes are fixedly connected to the box wall of the control box close to the control board. A first piston member fixedly connected to the control board is slidably connected inside the piston pipe. A transmission pipe is also fixedly connected to the box wall of the control box. The transmission pipe is connected to the control pipe through a rubber pipe. The control pipe is fixedly connected to a fixed frame arranged on the base. A control piston is fixedly connected to the outer wall of the other end of the control pipe. The control piston is slidably connected to a piston groove arranged inside the tooth seat. The tooth seat is slidably connected to a guiding frame fixedly connected to the base and is meshed with the gear.

[0010] As a further solution of the utility model: the reflux assembly includes: a second water pump and a heat exchanger. The second water pump is fixedly connected to the outer side of the bottom end of the partition plate, with the input end connected to the partition plate and the output end fixedly connected to the heat exchanger. The output end of the heat exchanger is disposed opposite to the inner wall of the bottom end of the base.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] During the operation of the device, the mold is placed on the support plate. A number of limiting frames for limiting the mold are fixedly connected to the support plate. The liquid guiding assembly conveys the cooling water located inside the base into the inside of the spraying assembly. The spraying assembly sprays the cooling water onto the surface of the mold, spraying from both sides simultaneously. The cooling water absorbs heat from the mold to cool it down. At the same time, the air blowing assembly can convey air into the inside of the spraying assembly, which can not only pressurize the cooling water but also complete the blowing and heat dissipation of the mold. Additionally, the air blowing assembly can drive the spraying assembly to swing reciprocally to ensure the uniformity of cooling. The cooling water after absorbing heat falls on the partition plate. The reflux assembly can re-send the cooling water falling on the partition plate into the inside of the base and can cool down the cooling water after heat absorption to ensure the effectiveness of subsequent heat dissipation. Through the setting of the two-way cooling mechanism and the cooperation with the reflux assembly, this application can complete the cyclic cooling of the mold, with both sides operating synchronously, greatly improving the heat dissipation efficiency. At the same time, it can carry out heat dissipation by multiple means and also ensure the uniformity of heat dissipation, greatly improving the heat dissipation effect. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of a cooling device for automobile part injection molding.

[0014] Figure 2 It is a cross-sectional view of a cooling device for automobile part injection molding.

[0015] Figure 3 It is a schematic structural diagram of a flushing mechanism in a cooling device for automobile part injection molding.

[0016] Figure 4 It is a cross-sectional view of a flushing mechanism in a cooling device for automobile part injection molding.

[0017] In the figure: 1, base; 2, partition plate; 3, support plate; 4, mold; 5, support pipe; 6, spray box; 7, fixed sleeve; 8, air guide box; 9, fixed frame; 10, shunt pipe; 11, first water pump; 12, second water pump; 13, heat exchanger; 14, spray pipe; 15, gear; 16, tooth seat; 17, guide frame; 18, fan; 19, drive rod; 20, control pipe; 21, rubber pipe; 22, drive pipe; 23, control box; 24, piston pipe; 25, sliding frame; 26, motor; 27, mounting frame; 28, purification box; 29, air guide pipe; 30, cam. Detailed Embodiment

[0018] The technical solution of the present application will be further described in detail below in conjunction with specific embodiments.

[0019] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0020] Please refer to Figure 1 and Figure 2 In an embodiment of the present utility model, a cooling device for injection molding of automotive parts includes: a base 1; a partition 2 fixedly connected and arranged inside the base 1 for cooperating with the base 1 to receive cooling water; a support plate 3 arranged outside the top end of the partition 2 and fixedly connected to the base 1, and a mold 4 is snap-fitted and arranged outside the top end of the support plate 3; a two-way cooling mechanism symmetrically arranged on both sides of the support plate 3 and connected to the base 1 for cooperating with the cooling water arranged inside the base 1 to perform multiple heat absorption and cooling on the mold 4; a reflux assembly fixedly connected and arranged outside the bottom end of the partition 2 and connected to the partition 2; wherein, the two-way cooling mechanism includes: a liquid guiding assembly, a spraying assembly and a blowing assembly. The liquid guiding assembly is arranged outside the partition 2 and fixedly connected to the inner wall of the bottom end of the base 1. The liquid guiding assembly is also connected to the spraying assemblies symmetrically arranged on both sides of the support plate 3. The spraying assemblies are provided with blowing assemblies, and the blowing assemblies are connected to the spraying assemblies for pressurizing the cooling water and realizing the swinging of the spraying assemblies.

[0021] In this embodiment, when the device is running, the mold 4 is placed on the support plate 3. A number of limiting frames for limiting the mold 4 are fixedly connected and arranged on the support plate 3. The liquid guiding assembly conveys the cooling water located inside the base 1 into the inner side of the spraying assemblies. The spraying assemblies spray the cooling water onto the surface of the mold 4, and spray simultaneously on both sides. The cooling water absorbs heat from the mold 4. At the same time, the blowing assembly can send air into the inner side of the spraying assemblies, which can not only pressurize the cooling water, but also blow and dissipate heat from the mold 4. In addition, the blowing assembly can also drive the spraying assemblies to swing reciprocally to ensure the uniformity of cooling. The cooling water after heat absorption falls on the partition 2, and the reflux assembly can send the cooling water falling on the partition 2 back into the inner side of the base 1 and can cool the cooling water after heat absorption to ensure the effectiveness of subsequent heat dissipation. By setting the two-way cooling mechanism and cooperating with the reflux assembly, the present application can complete the cyclic cooling of the mold 4, synchronously on both sides, greatly improving the heat dissipation efficiency. At the same time, it can perform heat dissipation by various means and also ensure the uniformity of heat dissipation, greatly improving the heat dissipation effect.

[0022] In an embodiment of the present utility model, please refer to Figure 2 The liquid guiding assembly includes: a support pipe 5, a shunt pipe 10, and a first water pump 11. The first water pump 11 is fixedly connected to the inner bottom of the base 1. The output end of the first water pump 11 is connected to a water outlet pipe. Shunt pipes 10 are fixedly connected to both side walls of the water outlet pipe. The other end of the shunt pipe 10 is fixedly connected to the support pipe 5. The support pipe 5 is fixedly connected to the partition plate 2 and is connected to the spraying assembly.

[0023] In this embodiment, the first water pump 11 pumps the cooling water located inside the base 1. The cooling water enters the inside of the support pipe 5 along the water outlet pipe and the shunt pipe 10, and enters the inside of the spraying assembly connected thereto along the support pipe 5. Among them, the support pipe 5 has a U-shaped structure. By setting the liquid guiding assembly, water can be supplied to the spraying assemblies on both sides at the same time.

[0024] In an embodiment of the present utility model, please refer to Figure 2 , Figure 3 and Figure 4 The spraying assembly includes: a spray box 6, a fixed sleeve 7, a spray pipe 14, and a gear 15. The spray box 6 is arranged between the output ends on both sides of the support pipe 5. Flow guiding ports are arranged on both side walls of the spray box 6. Fixed sleeves 7 fixedly connected to the spray box 6 are arranged outside the flow guiding ports. The fixed sleeves 7 are sleeved outside the output ends of the support pipe 5 and are rotatably connected to the support pipe 5. A gear 15 connected to the air blowing assembly is fixedly connected to the outside of one of the fixed sleeves 7 for cooperating with the air blowing assembly to realize the swinging of the spray box 6. A plurality of spray pipes 14 are fixedly connected to the side wall of the spray box 6 close to the support plate 3. The spray box 6 is also connected to the air blowing assembly.

[0025] In this embodiment, a sealing ring is fixedly connected to the outer wall of the connection end of the support pipe 5 and the fixed sleeve 7. The cooling water enters the inside of the fixed sleeve 7 along the support pipe 5 and enters the inside of the spray box 6 along the flow guiding port. The cooling water entering the inside of the spray box 6 is sprayed out from the spray pipe 14. The sprayed cooling water falls on the mold 4 to complete the heat absorption and cooling of the mold 4. By setting the spraying assembly, it can cooperate with the liquid guiding assembly to realize the circulating flow of the cooling water, use the cooling water to absorb heat from the mold 4, and then complete the heat dissipation and cooling of the mold 4.

[0026] In an embodiment of the present utility model, please refer to Figure 3 and Figure 4, the air blowing assembly includes: an air guide box 8, a fixing frame 9, a gear seat 16, a guiding frame 17, a fan 18, a driving rod 19, a control pipe 20, a rubber pipe 21, a transmission pipe 22, a control box 23, a piston pipe 24, a sliding frame 25, a motor 26, a mounting frame 27, a purification box 28 and an air guide pipe 29. The air guide box 8 is fixedly connected and arranged on the outer side of the top end of the spraying box 6. On the outer side of the top end of the air guide box 8, a mounting frame 27 is fixedly connected. On the mounting frame 27, a motor 26 is fixedly connected. The output end of the motor 26 is fixedly connected to a driving rod 19 that leads to the inside of the air guide box 8. The driving rod 19 is fixedly connected to a fan 18 arranged inside the air guide box 8. On the outer side of the top end of the air guide box 8, a purification box 28 is fixedly connected. Inside the purification box 28, a filter layer is snap-connected. On the box wall of the purification box 28, an air inlet pipe is fixedly connected. The other box wall is connected to the air guide box 8 through an air delivery pipe. On the bottom box wall of the air guide box 8, an air guide pipe 29 is fixedly connected. The other end of the air guide pipe 29 is connected to the spraying box 6, and a one-way valve is fixedly connected inside. On the outer side of the driving rod 19, a cam 30 is also fixedly connected. The outer side of the cam 30 abuts against a sliding frame 25. The sliding frame 25 is slidably connected to the frame wall of the mounting frame 27. A spring is fixedly connected between the sliding frame 25 and the mounting frame 27. On the sliding frame 25, a control board is fixedly connected. On the outer side of the control board, there is a control box 23 fixedly connected to the spraying box 6. On the box wall of the control box 23 close to the control board, a number of piston pipes 24 are fixedly connected. Inside the piston pipes 24, a first piston member fixedly connected to the control board is slidably connected. On the box wall of the control box 23, a transmission pipe 22 is also fixedly connected. The transmission pipe 22 is connected to the control pipe 20 through a rubber pipe 21. The control pipe 20 is fixedly connected to a fixing frame 9 fixedly connected to the base 1. On the outer wall of the other end of the control pipe 20, a control piston is fixedly connected. The control piston is slidably connected to a piston groove arranged inside the gear seat 16. The gear seat 16 is slidably connected to a guiding frame 17 fixedly connected to the base 1 and is meshed with a gear 15.

[0027] In this embodiment, the first piston member includes a first piston slidably connected to the inside of the piston tube 24 and a first push rod fixedly connected to the first piston. The other end of the first push rod is fixedly connected to the control board. The motor 26 drives the drive rod 19 to rotate, the drive rod 19 drives the fan 18 to rotate, and the outside air enters the inside of the purification box 28 along the air inlet pipe. The filter layer provided inside the purification box 28 removes dust from the air. The air after dust removal enters the inside of the air guide box 8 along the air delivery pipe and enters the inside of the spray box 6 along the air guide pipe 29. During the rotation of the drive rod 19, it can also drive the cam 30 to rotate. Cooperating with the spring provided between the sliding frame 25 and the mounting frame 27, the reciprocating movement of the sliding frame 25 is realized. The sliding frame 25 drives the first piston to move inside the piston tube 24 through the control board, driving the air inside the control box 23 to enter and exit the piston groove along the transmission pipe 22, the rubber pipe 21, and the control pipe 20, cooperating with the control piston, driving the tooth seat 16 to perform reciprocating up and down movements along the guide frame 17. The tooth seat 16 cooperates with the gear 15 to realize the swinging of the spray box 6, ensuring the uniformity of spraying and thus ensuring the consistency of cooling.

[0028] In one embodiment of the present utility model, please refer to Figure 2 , the reflux assembly includes: a second water pump 12 and a heat exchanger 13. The second water pump 12 is fixedly connected and arranged on the outer side of the bottom end of the partition plate 2, with the input end connected to the partition plate 2 and the output end fixedly connected to the heat exchanger 13. The output end of the heat exchanger 13 is oppositely arranged with the inner wall of the bottom end of the base 1.

[0029] In this embodiment, the second water pump 12 can extract the cooling water falling on the partition plate 2 and send it into the inside of the heat exchanger 13. The heat exchanger 13 cools the heat-absorbed cooling water, and the re-cooled cooling water flows back into the inside of the base 1. Additionally, the hot end of the heat exchanger 13 is arranged outside the base 1.

[0030] For the cooling device for injection molding of automotive parts, the mold 4 is placed on the support plate 3. The first water pump 11 extracts the cooling water located inside the base 1. The cooling water enters the inner side of the support pipe 5 along the outlet pipe and the shunt pipe 10, enters the inner side of the fixed sleeve 7 along the support pipe 5, and enters the inner side of the spray box 6 along the diversion port. The cooling water entering the inner side of the spray box 6 is sprayed out from the spray pipe 14, and the sprayed cooling water falls on the mold 4 to complete the heat absorption and temperature reduction of the mold 4. The motor 26 drives the driving rod 19 to rotate, and the driving rod 19 drives the fan 18 to rotate. The outside air enters the inner side of the purification box 28 along the intake pipe. The filter layer provided inside the purification box 28 removes dust from the air. The air after dust removal enters the inner side of the air guide box 8 along the air delivery pipe and enters the inner side of the spray box 6 along the air guide pipe 29, which can not only pressurize the cooling water but also complete the blowing heat dissipation of the mold 4. During the rotation of the driving rod 19, it can also drive the cam 30 to rotate, and cooperate with the spring arranged between the sliding frame 25 and the mounting frame 27 to realize the reciprocating movement of the sliding frame 25. The sliding frame 25 drives the first piston to move inside the piston pipe 24 through the control board, driving the air inside the control box 23 to enter and exit the piston groove along the transmission pipe 22, the rubber pipe 21 and the control pipe 20, and cooperating with the control piston to drive the tooth seat 16 to perform reciprocating up and down movement along the guide frame 17. The tooth seat 16 cooperates with the gear 15 to realize the swing of the spray box 6, ensuring the uniformity of spraying. The second water pump 12 can extract the cooling water falling on the partition plate 2 and send it into the inner side of the heat exchanger 13. The heat exchanger 13 is used to cool the heat-absorbed cooling water, and the re-cooled cooling water flows back into the inner side of the base 1.

[0031] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent.

Claims

1. A cooling device for injection molding of automotive parts, characterized in that, Comprising: Base; Partition board, which is fixedly connected and arranged inside the base for cooperating with the base to receive cooling water; Support plate, which is arranged outside the top of the partition board and fixedly connected to the base. A mold is clamped and arranged outside the top of the support plate; Two-way cooling mechanism, which is symmetrically arranged on both sides of the support plate and connected to the base, and is used to cooperate with the cooling water arranged inside the base to complete multi-stage heat absorption and cooling of the mold; Return flow assembly, which is fixedly connected and arranged outside the bottom of the partition board and connected to the partition board; Among them, the two-way cooling mechanism includes: a liquid guiding assembly, a spraying assembly and a blowing assembly. The liquid guiding assembly is arranged outside the partition board and fixedly connected to the inner wall of the bottom of the base. The liquid guiding assembly is also connected to the spraying assemblies symmetrically arranged on both sides of the support plate. A blowing assembly is arranged on the spraying assembly, and the blowing assembly is connected to the spraying assembly for pressurizing the cooling water and realizing the swinging of the spraying assembly.

2. The cooling device for injection molding of automotive parts according to claim 1, characterized in that, The liquid guiding assembly includes: a support pipe, a shunt pipe and a first water pump. The first water pump is fixedly connected and arranged at the bottom inside the base. The output end of the first water pump is connected to a water outlet pipe. Shunt pipes are fixedly connected to the pipe walls on both sides of the water outlet pipe. The other end of the shunt pipe is fixedly connected to the support pipe, and the support pipe is fixedly connected to the partition board and connected to the spraying assembly.

3. The cooling device for injection molding of automotive parts according to claim 2, wherein, The spraying assembly includes: a spraying box, a fixed sleeve, a spraying pipe and a gear. The spraying box is arranged between the output ends on both sides of the support pipe. Flow guiding ports are arranged on the box walls on both sides of the spraying box. Fixed sleeves fixedly connected to the spraying box are arranged outside the flow guiding ports. The fixed sleeves are sleeved outside the output ends of the support pipe and rotatably connected to the support pipe. A gear connected to the blowing assembly is fixedly connected to the outside of one of the fixed sleeves for realizing the swinging of the spraying box in cooperation with the blowing assembly. A number of spraying pipes are fixedly connected to the box wall of the spraying box close to the support plate. The spraying box is also connected to the blowing assembly.

4. The cooling device for injection molding of automotive parts according to claim 3, characterized in that, The air blowing assembly includes: an air guide box, a fixed frame, a gear seat, a guide frame, a fan, a driving rod, a control pipe, a rubber pipe, a transmission pipe, a control box, a piston pipe, a sliding frame, a motor, a mounting frame, a purification box and an air guide pipe. The air guide box is fixedly connected to the outer side of the top end of the spraying box. An installation frame is fixedly connected to the outer side of the top end of the air guide box. A motor is fixedly connected to the installation frame. The output end of the motor is fixedly connected to a driving rod that leads to the inner side of the air guide box. The driving rod is fixedly connected to a fan arranged inside the air guide box. A purification box is fixedly connected to the outer side of the top end of the air guide box. A filter layer is snap-connected inside the purification box. An air inlet pipe is fixedly connected to the box wall of the purification box. The other box wall is connected to the air guide box through an air delivery pipe. An air guide pipe is fixedly connected to the bottom box wall of the air guide box. The other end of the air guide pipe is connected to the spraying box and is fixedly connected with a one-way valve inside. A cam is also fixedly connected to the outer side of the driving rod. The cam abuts against a sliding frame on the outer side. The sliding frame is slidably connected to the frame wall of the mounting frame. A spring is fixedly connected between the sliding frame and the mounting frame. A control board is fixedly connected to the sliding frame. A control box fixedly connected to the spraying box is arranged on the outer side of the control board. A number of piston pipes are fixedly connected to the box wall of the control box close to the control board. A first piston member fixedly connected to the control board is slidably connected inside the piston pipe. A transmission pipe is also fixedly connected to the box wall of the control box. The transmission pipe is connected to the control pipe through a rubber pipe. The control pipe is fixedly connected to a fixed frame fixedly connected to the base. A control piston is fixedly connected to the outer wall of the other end of the control pipe. The control piston is slidably connected to a piston groove arranged inside the gear seat. The gear seat is slidably connected to a guide frame fixedly connected to the base and is meshed with a gear.

5. The cooling device for injection molding of automotive parts according to claim 4, characterized in that, The reflux assembly includes: a second water pump and a heat exchanger. The second water pump is fixedly connected to the outer side of the bottom end of the partition board. The input end is connected to the partition board, and the output end is fixedly connected to the heat exchanger. The output end of the heat exchanger is arranged opposite to the inner wall of the bottom end of the base.

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