Cooling device for plastic injection mold

Abstract

The utility model discloses a cooling device for a plastic injection mold, which comprises a base and a gantry frame, the gantry frame is mounted in the base, a trolley track is mounted at the top end of the base on one side of the gantry frame and extends into the gantry frame, an electric trolley is mounted at the top end of the trolley track in a sliding manner, and the electric trolley is connected with the gantry frame. A clamping frame is installed at the top end of the electric trolley, and a filter screen frame is arranged in the position, below the trolley track, of the base. According to the spraying physical cooling device, convenient multi-position moving spraying type lateral physical cooling treatment and circumferential rotating type spraying physical cooling treatment are realized, the cooling device can conveniently filter and remove impurities on sprayed and cooled water, and the cooling device can quickly and uniformly spray physical cooling treatment around a plastic injection mold; and moreover, the utilization rate of water resource reuse is improved, and the cooling efficiency of the plastic injection mold is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices, in particular to a cooling device for a plastic injection mold. Background Technique

[0002] A plastic mold is a short name for a combined mold used for compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. The coordinated changes of the convex and concave molds and the auxiliary molding system of the mold can process a series of plastic parts with different shapes and sizes. An injection mold is an industrial device widely used in the manufacture of various plastic products. The main function of an injection mold is to achieve the mass production of plastic products with stable styles and quality, so as to meet the market demand. Injection molds play an increasingly important role in modern industrial production. Injection molds are one of the key devices for manufacturing plastic products and can produce plastic products with various shapes and sizes. Injection molds provide high efficiency, low cost, and organization for manufacturing plastic products. Through injection molds, manufacturers can mass-produce plastic products in a short time to meet the market demand for products.

[0003] As disclosed in a cooling device for a plastic injection mold with the authorization announcement number CN221048975U, which includes a cooling box, a water inlet pipe and a drain pipe are arranged on the cooling box. A refrigerator is fixedly installed on the front side wall surface of the cooling box. A placement groove is opened on the upper side wall surface of the cooling box. The placement groove is in the shape of a trapezoid with a large upper part and a small lower part. A placement plate is arranged inside the placement groove. The placement plate is adapted to the bottom of the cavity of the placement groove. The left and right wall surfaces of the placement groove are hermetically connected with water delivery pipes. Water pumps are arranged on both water delivery pipes. Both water delivery pipes are in the shape of a T.

[0004] Although it realizes that when it is necessary to adjust the water flow rate of the water delivery pipe, the first lead screw can be rotated. With the cooperation of the second belt, the two first lead screws rotate synchronously in the same direction. According to the different rotation directions of the first lead screw, the two movable clamping plates will drive the water blocking plug forward or backward under the cooperation of the movable clamping grooves, so that the water flow rates of the two water delivery pipes increase or decrease simultaneously.

[0005] However, it does not solve the problem that the existing cooling device is not conducive to convenient multi-position mobile spraying type lateral physical cooling treatment and circumferential rotating spraying physical cooling treatment during use. It is not conducive to the cooling device to filter and remove impurities from the water after spraying cooling, and is not conducive to the cooling device to quickly and evenly spray physical cooling treatment around the plastic injection mold, greatly affecting the utilization rate of the recycled water resources and extremely affecting the cooling efficiency of the plastic injection mold. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a cooling device for a plastic injection mold, so as to solve the problems in the above-mentioned background technology that the cooling device is not convenient for multi-position mobile spraying type lateral physical cooling treatment, circumferential rotating spraying physical cooling treatment, is not conducive to the cooling device filtering and removing impurities from the water after spraying cooling, is not conducive to the cooling device quickly and evenly spraying physical cooling treatment around the plastic injection mold, greatly affects the utilization rate of reused water resources, and extremely affects the cooling efficiency of the plastic injection mold.

[0007] To achieve the above purpose, the present utility model provides the following technical solutions: A cooling device for a plastic injection mold, including a base and a gantry frame. The gantry frame is installed inside the base. On the top of the base on one side of the gantry frame, a trolley track is installed, and the trolley track extends into the interior of the gantry frame. An electric trolley is slidably installed on the top of the trolley track. A clamping frame is installed on the top of the electric trolley. Inside the base below the trolley track, a filter screen frame is arranged. Inside the base on one side of the filter screen frame, an open water tank is arranged, and all the open water tanks are connected to the filter screen frame. On the inner wall of the gantry frame, side covers are symmetrically installed. On the top of the gantry frame, a walking frame is arranged. At the center position on the top of the walking frame, a rotating box is installed. On the top of the rotating box, an arch frame is installed. On the top of the arch frame, a connecting sleeve is installed, and the connecting sleeve penetrates into the interior of the arch frame and is fixedly connected to the arch frame. On the top of the walking frame on one side of the rotating box, a water pump is installed.

[0008] Preferably, one end of the water pump close to the side cover is installed with a water inlet pipe, and the water inlet pipe extends into the interior of the open water tank and is slidably connected to the open water tank. On the top of the water pump on one side of the water inlet pipe, a water outlet pipe is installed, and the water outlet pipe extends into the interior of the connecting sleeve and is connected to the connecting sleeve.

[0009] Preferably, a positioning sleeve is installed inside the walking frame below the rotating box. A hollow shaft is movably installed inside the positioning sleeve. The hollow shaft passes through the rotating box and extends to the bottom end of the connecting sleeve, and the hollow shaft is movably connected to the connecting sleeve. The hollow shaft extends outside the walking frame. At the bottom end of the hollow shaft, a U-shaped frame is installed. On the inner wall of the U-shaped frame, a plurality of groups of nozzles are arranged at equal intervals, and all the nozzles extend into the interior of the U-shaped frame.

[0010] Preferably, two groups of pulleys are symmetrically installed on the top of the gantry frame below the walking frame. The pulleys are all slidably installed on the top of the limiting tracks, and the pulleys are all fixedly connected to the walking frame.

[0011] Preferably, a servo motor is installed on the top of the gantry frame on one side of the limiting track. The output end of the servo motor is installed with a driving wheel. On the top of the gantry frame on the other side of the limiting track, a supporting wheel is movably installed.

[0012] Preferably, a belt is installed on the outer wall of the driving wheel, and the belt extends to the surface of the supporting wheel through the pulley, and the belt is fixedly connected to the pulley.

[0013] Preferably, a stepping motor is installed inside the rotating box above the walking frame. A worm is installed at the output end of the stepping motor. A worm gear is sleeved on the surface of the hollow shaft on one side of the worm, and the worm gear meshes with the worm, and the worm gear is fixedly connected to the hollow shaft.

[0014] Preferably, a remote controller is installed on the outer wall of the base on one side of the gantry frame, and the output end of the remote controller is electrically connected to the input ends of the electric trolley, the water pump, the stepping motor, and the servo motor.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This cooling device not only realizes convenient multi-position mobile spraying type side physical cooling treatment and circumferential rotating spraying physical cooling treatment, facilitates the cooling device to filter and remove impurities from the water after spraying and cooling, facilitates the cooling device to quickly and evenly spray physical cooling treatment around the plastic injection mold, but also improves the utilization rate of reused water resources and the cooling efficiency of the plastic injection mold.

[0016] (1) The electric trolley drives the clamping frame to move, and the clamping frame drives the plastic injection mold to move into the interior of the gantry frame. The water in the open water tank is transported to the inside of the water pump through the water inlet pipe. At the same time, the water in the water pump is transported to the inside of the adapter sleeve through the water outlet pipe. The water in the adapter sleeve is transported to the inside of the U-shaped frame through the hollow shaft. The water in the U-shaped frame is sprayed onto the surface of the plastic injection mold through multiple nozzles to perform physical cooling and temperature reduction treatment on it. The servo motor drives the driving wheel to rotate, the driving wheel drives the supporting wheel to rotate through the belt, the belt drives the pulley to slide on the surface of the limit track, and at the same time, the pulley drives the walking frame, the rotating box, the arch frame, the adapter sleeve, and the water pump to move synchronously. The walking frame drives the U-shaped frame to move synchronously through the hollow shaft to perform mobile physical cooling treatment on the side of the plastic injection mold. At the same time, the sprayed water flows into the inside of the filter mesh frame through the surface of the plastic injection mold. Under the filtering action of the filter mesh frame, the dirt and impurities in the water after spraying and cooling are filtered. The filtered water flows back into the inside of the open water tank from both ends of the filter mesh frame to facilitate recycling, realizing convenient multi-position mobile spraying type side physical cooling treatment of the cooling device for the plastic injection mold, facilitating the cooling device to filter and remove impurities from the water after spraying and cooling, reducing excessive use of water resources, and improving the utilization rate of reused water resources.

[0017] (2) The worm is driven to rotate by a stepper motor, and the worm drives the worm wheel to rotate. The worm wheel drives the U-shaped frame to rotate synchronously through the hollow shaft. The U-shaped frame performs circular rotation spray cooling around the plastic injection mold to quickly spray and physically cool the plastic injection mold. When the hollow shaft rotates, the water outlet pipe is movably supported on the hollow shaft through the adapter sleeve to prevent the water outlet pipe from being entangled and interfering when the hollow shaft rotates. The walking frame is movably supported on the hollow shaft through the positioning sleeve, thereby realizing convenient circular rotation spraying and physically cooling treatment for the cooling device of the plastic injection mold, facilitating the cooling device to quickly and evenly spray physical cooling treatment around the plastic injection mold, increasing the spraying range of the cooling device, and improving the cooling efficiency of the plastic injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the walking frame of the utility model;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the base of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the open water tank of the utility model;

[0022] Figure 5 This is a front view structural schematic diagram of the utility model;

[0023] Figure 6 It is a schematic diagram of the front cross-sectional structure of the rotary box of the utility model.

[0024] In the figure: 1. base; 2. gantry frame; 3. side cover; 4. trolley track; 5. electric trolley; 6. clamping frame; 7. limit track; 8. walking frame; 9. rotating box; 10. arch frame; 11. adapter sleeve; 12. water pump; 13. outlet pipe; 14. inlet pipe; 15. open water tank; 16. filter mesh frame; 17. positioning sleeve; 18. U-shaped frame; 19. nozzle; 20. support wheel; 21. transmission wheel; 22. stepping motor; 23. worm; 24. worm wheel; 25. hollow shaft; 26. remote controller; 27. servo motor; 28. belt; 29. ​​pulley. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0026] See also Figures 1-6, An embodiment provided by the present utility model: A cooling device for a plastic injection mold, including a base 1 and a gantry frame 2. The gantry frame 2 is installed inside the base 1. On the top of the base 1 on one side of the gantry frame 2, a trolley track 4 is installed, and the trolley track 4 extends into the interior of the gantry frame 2. An electric trolley 5 is slidably installed on the top of the trolley track 4. A clamping frame 6 is installed on the top of the electric trolley 5. Inside the base 1 below the trolley track 4, a filter screen frame 16 is provided. Inside the base 1 on one side of the filter screen frame 16, an open water tank 15 is provided, and the open water tanks 15 are all connected to the filter screen frame 16. On the inner wall of the gantry frame 2, side covers 3 are symmetrically installed. On the top of the gantry frame 2, a walking frame 8 is provided. At the center position on the top of the walking frame 8, a rotating box 9 is installed. On the top of the rotating box 9, an arch frame 10 is installed. On the top of the arch frame 10, a transfer sleeve 11 is installed, and the transfer sleeve 11 penetrates into the interior of the arch frame 10, and the transfer sleeve 11 is fixedly connected to the arch frame 10. On the top of the walking frame 8 on one side of the rotating box 9, a water pump 12 is installed;

[0027] One end of the water pump 12 close to the side cover 3 is installed with a water inlet pipe 14, and the water inlet pipe 14 extends into the interior of the open water tank 15, and the water inlet pipe 14 is slidably connected to the open water tank 15. On the top of the water pump 12 on one side of the water inlet pipe 14, a water outlet pipe 13 is installed, and the water outlet pipe 13 extends into the interior of the transfer sleeve 11, and the water outlet pipe 13 is connected to the transfer sleeve 11;

[0028] Inside the walking frame 8 below the rotating box 9, a positioning sleeve 17 is installed. Inside the positioning sleeve 17, a hollow shaft 25 is movably installed, and the hollow shaft 25 extends to the bottom end of the transfer sleeve 11 through the rotating box 9, and the hollow shaft 25 is movably connected to the transfer sleeve 11. The hollow shaft 25 extends outside the walking frame 8. At the bottom end of the hollow shaft 25, a U-shaped frame 18 is installed. On the inner wall of the U-shaped frame 18, a plurality of groups of nozzles 19 are arranged at equal intervals, and the nozzles 19 all extend into the interior of the U-shaped frame 18;

[0029] On the top of the gantry frame 2 below the walking frame 8, limit tracks 7 are symmetrically installed. On the top of the limit tracks 7, two groups of pulleys 29 are slidably installed, and the pulleys 29 are all fixedly connected to the walking frame 8;

[0030] On the top of the gantry frame 2 on one side of the limit track 7, a servo motor 27 is installed. The servo motor 27 plays a role of power drive. The output end of the servo motor 27 is installed with a transmission wheel 21. On the top of the gantry frame 2 on the other side of the limit track 7, a support wheel 20 is movably installed. On the outer wall of the transmission wheel 21, a belt 28 is installed, and the belt 28 extends to the surface of the support wheel 20 through the pulley 29, and the belt 28 is fixedly connected to the pulley 29;

[0031] Place the plastic injection mold on the surface of the electric trolley 5 and clamp it with the clamping frame 6. The staff turns on the electric trolley 5 through the remote controller 26. The electric trolley 5 drives the clamping frame 6 to move, and the clamping frame 6 drives the plastic injection mold to move inside the gantry frame 2. The staff pours external water into the open water tank 15 in sequence to facilitate subsequent cooling. When it moves to the designated position, turn off the electric trolley 5 through the remote controller 26. At this time, the plastic injection mold is located at the designated cooling position. At the same time, turn on the water pump 12 by operating the remote controller 26. Under the action of the water pump 12, the water in the open water tank 15 is transported into the water pump 12 through the water inlet pipe 14. At the same time, the water in the water pump 12 is transported into the adapter sleeve 11 through the water outlet pipe 13. The water in the adapter sleeve 11 is transported into the U-shaped frame 18 through the hollow shaft 25. The water in the U-shaped frame 18 is sprayed onto the surface of the plastic injection mold through multiple nozzles 19 to conduct physical cooling and temperature reduction treatment on it. When the outer shape length of the plastic injection mold is relatively long or multiple side coolings are required, turn on the servo motor 27 by operating the remote controller 26. Supported by the gantry frame 2, the servo motor 27 drives the transmission wheel 21 to rotate. The transmission wheel 21 drives the support wheel 20 to rotate through the belt 28. The belt 28 drives the pulley 29 to slide on the surface of the limit track 7. At the same time, the pulley 29 drives the walking frame 8, the rotating box 9, the arch frame 10, the adapter sleeve 11, and the water pump 12 to move synchronously. The walking frame 8 drives the U-shaped frame 18 to move synchronously through the hollow shaft 25 to conduct mobile physical cooling treatment on the side of the plastic injection mold. At the same time, the sprayed water flows into the internal of the filter screen frame 16 through the surface of the plastic injection mold. Under the filtering action of the filter screen frame 16, the dirt and impurities in the water after spraying and cooling are filtered. The filtered water flows back into the open water tank 15 from both ends of the filter screen frame 16 to facilitate recycling. The side cover 3 plays a role in shielding and protecting the splashed water. The water mist on the inner wall of the side cover 3 can flow into the internal of the filter screen frame 16 under the action of gravity, realizing convenient multi-position mobile spraying type side physical cooling treatment of the cooling device for plastic injection molds, facilitating the filtering and impurity removal of the water after spraying and cooling by the cooling device, reducing the excessive use of water resources, and improving the utilization rate of water resource reuse;

[0032] A stepping motor 22 is installed inside the rotating box 9 above the walking frame 8. The stepping motor 22 plays a role of power drive. The output end of the stepping motor 22 is installed with a worm 23. A worm gear 24 is sleeved on the surface of the hollow shaft 25 on one side of the worm 23. The worm gear 24 meshes with the worm 23, and the worm gear 24 is fixedly connected to the hollow shaft 25;

[0033] A remote controller 26 is installed on the outer wall of the base 1 on one side of the gantry frame 2. The output end of the remote controller 26 is electrically connected to the input ends of the electric trolley 5, the water pump 12, the stepping motor 22, and the servo motor 27;

[0034] The stepping motor 22 is turned on by operating the remote controller 26. Supported by the rotating box 9, the stepping motor 22 drives the worm 23 to rotate. Under the meshing action of the worm 23 and the worm gear 24, the worm 23 drives the worm gear 24 to rotate. The worm gear 24 drives the U-shaped frame 18 to rotate synchronously through the hollow shaft 25. The U-shaped frame 18 rotates around the plastic injection mold in a circular motion to spray liquid for cooling, so as to perform a rapid spraying physical cooling treatment on the plastic injection mold. When the hollow shaft 25 rotates, the water outlet pipe 13 movably supports the hollow shaft 25 through the adapter sleeve 11 to prevent the water outlet pipe 13 from being wound and interfered when the hollow shaft 25 rotates. The walking frame 8 movably supports the hollow shaft 25 through the positioning sleeve 17, realizing a convenient circular rotation type spraying physical cooling treatment for the cooling device of the plastic injection mold, facilitating the rapid and uniform spraying physical cooling treatment of the cooling device around the plastic injection mold, increasing the spraying range of the cooling device, and improving the cooling efficiency of the plastic injection mold.

[0035] Working principle: When in use, with an external power supply, first, the staff places the plastic injection mold on the surface of the electric trolley 5. The electric trolley 5 drives the clamping frame 6 to move, and the clamping frame 6 drives the plastic injection mold to move into the interior of the gantry frame 2. The water in the open water tank 15 is transported to the interior of the water pump 12 through the water inlet pipe 14. At the same time, the water in the water pump 12 is transported to the interior of the adapter sleeve 11 through the water outlet pipe 13. The water in the adapter sleeve 11 is transported to the interior of the U-shaped frame 18 through the hollow shaft 25. The water in the U-shaped frame 18 is sprayed onto the surface of the plastic injection mold through multiple nozzles 19 to conduct physical cooling and temperature reduction treatment on it. When the outer shape length of the plastic injection mold is relatively long or multiple side coolings are required, the servo motor 27 drives the driving wheel 21 to rotate. The driving wheel 21 drives the supporting wheel 20 to rotate through the belt 28. The belt 28 drives the pulley 29 to slide on the surface of the limit track 7. At the same time, the pulley 29 drives the walking frame 8, the rotating box 9, the arch frame 10, the adapter sleeve 11, and the water pump 12 to move synchronously. The walking frame 8 drives the U-shaped frame 18 to move synchronously through the hollow shaft 25 to conduct mobile physical cooling treatment on the side of the plastic injection mold. At the same time, the sprayed water flows into the interior of the filter screen frame 16 through the surface of the plastic injection mold. Under the filtering action of the filter screen frame 16, the dirt and impurities in the water after spraying and cooling are filtered. The filtered water flows back into the interior of the open water tank 15 from both ends of the filter screen frame 16 to facilitate recycling. The stepper motor 22 drives the worm 23 to rotate. The worm 23 drives the worm wheel 24 to rotate. The worm wheel 24 drives the U-shaped frame 18 to rotate synchronously through the hollow shaft 25. The U-shaped frame 18 rotates around the plastic injection mold for circumferential liquid spraying cooling to conduct rapid sprayed physical cooling treatment on the plastic injection mold. When the hollow shaft 25 rotates, the water outlet pipe 13 supports the hollow shaft 25 movably through the adapter sleeve 11 to prevent the water outlet pipe 13 from being wound and interfered when the hollow shaft 25 rotates. The walking frame 8 supports the hollow shaft 25 movably through the positioning sleeve 17 to complete the use of the cooling device.

[0036] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to it as equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A cooling device for a plastic injection mold, comprising a base (1) and a gantry frame (2), characterized in that: A gantry frame (2) is installed inside the base (1), a trolley track (4) is installed at the top of the base (1) on one side of the gantry frame (2), and the trolley track (4) extends into the inside of the gantry frame (2), an electric trolley (5) is slidably installed at the top of the trolley track (4), and a clamping frame (6) is installed at the top of the electric trolley (5), a filter rack (16) is arranged inside the base (1) below the trolley track (4), and an open water tank (15) is arranged inside the base (1) on one side of the filter rack (16), and the open water tank (15) is connected to the filter rack (16). The gantry frame (2) is connected to a grid frame (16), a side cover (3) is symmetrically installed on the inner wall of the gantry frame (2), a walking frame (8) is arranged at the top of the gantry frame (2), a rotating box (9) is installed at the center position of the top of the walking frame (8), an arch frame (10) is installed at the top of the rotating box (9), an adapter sleeve (11) is installed at the top of the arch frame (10), and the adapter sleeve (11) passes through the interior of the arch frame (10), and the adapter sleeve (11) is fixedly connected to the arch frame (10), and a water pump (12) is installed at the top of the walking frame (8) on one side of the rotating box (9).

2. A cooling device for a plastic injection mold according to claim 1, characterized in that: An inlet pipe (14) is installed at one end of the water pump (12) close to the side cover (3), and the inlet pipe (14) extends to the inside of the open water tank (15), and the inlet pipe (14) is slidably connected to the open water tank (15). A water outlet pipe (13) is installed at the top end of the water pump (12) on one side of the inlet pipe (14), and the outlet pipe (13) extends to the inside of the adapter sleeve (11), and the outlet pipe (13) is connected to the adapter sleeve (11).

3. A cooling device for a plastic injection mold according to claim 1, characterized in that: A positioning sleeve (17) is installed inside the traveling frame (8) below the rotating box (9), a hollow shaft (25) is movably installed inside the positioning sleeve (17), and the hollow shaft (25) extends to the bottom end of the adapter sleeve (11) through the rotating box (9), and the hollow shaft (25) is movably connected to the adapter sleeve (11), and the hollow shaft (25) extends to the outside of the traveling frame (8), and a U-shaped frame (18) is installed at the bottom end of the hollow shaft (25), and a plurality of groups of nozzles (19) with equal spacing are arranged on the inner wall of the U-shaped frame (18), and the nozzles (19) all extend to the inside of the U-shaped frame (18).

4. A cooling device for a plastic injection mold according to claim 1, characterized in that: The top of the gantry frame (2) below the walking frame (8) is symmetrically installed with a limit track (7), and the top of the limit track (7) is slidably installed with two groups of pulleys (29), and the pulleys (29) are fixedly connected to the walking frame (8).

5. A cooling device for a plastic injection mold according to claim 4, characterized in that: A servo motor (27) is installed at the top of the gantry frame (2) on one side of the limiting track (7), a transmission wheel (21) is installed at the output end of the servo motor (27), and a support wheel (20) is movably installed at the top of the gantry frame (2) on the other side of the limiting track (7).

6. A cooling device for a plastic injection mold according to claim 5, characterized in that: A belt (28) is installed on the outer wall of the transmission wheel (21), and the belt (28) extends to the surface of the support wheel (20) through a pulley (29), and the belt (28) is fixedly connected to the pulley (29).

7. A cooling device for a plastic injection mold according to claim 1, characterized in that: A stepper motor (22) is installed inside the rotating box (9) above the walking frame (8), a worm (23) is installed at the output end of the stepper motor (22), a worm wheel (24) is mounted on the surface of a hollow shaft (25) on one side of the worm (23), the worm wheel (24) is meshed with the worm (23), and the worm wheel (24) is fixedly connected to the hollow shaft (25).

8. A cooling device for a plastic injection mold according to claim 1, characterized in that: A remote controller (26) is installed on the outer wall of the base (1) on one side of the gantry frame (2), and the output end of the remote controller (26) is electrically connected to the input ends of the electric trolley (5), the water pump (12), the stepper motor (22), and the servo motor (27).

Images