Base injection molding cooling device
By combining water cooling and air cooling technologies, and using a serpentine tube to circulate cooling water and a fan to introduce air to cool the injection mold, the problem of uneven flow and slow cooling speed caused by the partition tube is solved, and rapid cooling and efficiency improvement of the injection mold are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU DONGLING ELECTRIC CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-24
AI Technical Summary
In existing injection molding cooling devices, the use of baffle tubes leads to uneven material flow and slow cooling speed, affecting the molding cycle.
A combination of water cooling and air cooling is used, with serpentine pipes circulating cooling water and fans introducing air to cool the injection mold, and a spiral agitator accelerates the mixing of cooling water to improve cooling efficiency.
It enables rapid cooling of injection molds, improves cooling efficiency, and shortens the molding cycle.
Smart Images

Figure CN224545245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding cooling technology, and in particular to a base injection molding cooling device. Background Technology
[0002] Chinese Patent No. CN222473287U discloses an injection molding cooling device, including a support frame, a cylinder mounted on the upper end of the support frame, an upper mold mounted on the output end of the cylinder, and an injection mold mounted on the inner wall of the bottom end of the support frame. The upper end of the injection mold has an injection gate hole, and a cooling structure is provided inside the injection gate hole. The cooling structure includes a baffle tube, with two sets of screws mounted on the upper end of the baffle tube. The output ends of the screws pass through the baffle tube and enter the interior of the injection mold. This injection molding cooling device can cool the temperature of the inner wall of the injection gate hole, thereby cooling the injection mold and improving its cooling effect.
[0003] The cooling method described in the aforementioned patent utilizes a baffle tube installed inside the injection gate to reduce the heat transfer between the raw material and the injection mold, thereby reducing heat transfer and achieving a cooling effect. Although the baffle tube reduces heat transfer, it also interferes with the flow of the raw material in the mold, leading to uneven flow. In complex molds requiring rapid cooling, the baffle tube can also hinder the flow of the cooling medium, resulting in a slower cooling rate and a longer molding cycle. Utility Model Content
[0004] Based on the aforementioned technical problems, this utility model proposes a base injection molding cooling device.
[0005] This utility model proposes a base injection molding cooling device, including an injection molding machine and an injection mold disposed inside the injection molding machine. A temperature sensor is fixedly installed on the upper surface of the injection molding machine. A water cooling mechanism and an air cooling mechanism are respectively disposed on the surface of the injection molding machine. The water cooling mechanism includes a water tank and a water cooling plate fixedly installed on one side surface of the injection mold. A serpentine tube is disposed inside the water cooling plate.
[0006] The air-cooling mechanism includes an air inlet located on the back of the injection molding machine, and a fan is fixedly installed on the surface of the air inlet.
[0007] Preferably, the water cooling mechanism further includes a circulation pump installed on the upper surface of the water tank cover. A filter screen is provided inside the water tank. The suction end of the circulation pump passes through the water tank cover and the filter screen in sequence via a pipe. One end of the serpentine tube extends to the outside of the injection molding machine and is fixedly connected to the water outlet end of the circulation pump. The other end of the serpentine tube is fixedly connected to the water tank cover.
[0008] The above technical solution involves starting a circulating pump, which allows cooling water from the water tank to enter a serpentine tube to cool the water-cooled platen, thereby cooling the surface of the injection mold. After the cooling water carries away the heat, it flows back to the water tank through the serpentine tube, and the returning cooling water is filtered using a filter screen.
[0009] Preferably, concave plates are provided on both sides of the upper surface of the filter screen, and first self-driving slide rails are symmetrically distributed and embedded on both sides of the water tank. The surface of the concave plate is fixedly connected to the slider surface of the first self-driving slide rail, the inner surface of the concave plate is slidably engaged with the surface of the water tank, and a second self-driving slide rail is fixedly installed on the surface of the concave plate. The slider surface of the second self-driving slide rail is fixedly connected to the surface of the filter screen.
[0010] Through the above technical solution, the movement of the slider on the first self-driven slide rail causes the concave plate to move up and down along the surface of the water tank, the movement of the concave plate causes the filter screen to move up and down, and the movement of the slider on the second self-driven slide rail causes the filter screen to move.
[0011] Preferably, each of the two concave plates has a groove on one side of its surface, and a third self-driving slide rail is fixedly installed on the inner wall of one of the grooves. A scraper is fixedly connected to the slider surface of the third self-driving slide rail, and the two ends of the scraper are respectively slidably engaged with the inner walls of the two grooves.
[0012] Through the above technical solution, the movement of the slider on the third self-driving slide rail drives the scraper to move along the surface of the filter screen.
[0013] Preferably, a spiral agitator is mounted on the inner wall of the water tank via bearings, and an agitator motor is fixedly mounted on the outer surface of the water tank. One end of the output shaft of the agitator motor is fixedly connected to one end of the spiral agitator via a coupling.
[0014] Through the above technical solution, the rotation of the output shaft of the stirring motor drives the spiral stirring paddle connected to it to rotate, thereby accelerating the cooling speed of the cooling water in the water tank.
[0015] Preferably, the air-cooling mechanism further includes an air guide plate disposed on the surface of the air inlet away from the fan, and one side surface of the air guide plate is fixedly connected to the inner wall of the injection molding machine.
[0016] The above technical solution utilizes a guide vane to increase the air velocity at the air inlet, thereby accelerating the air cooling efficiency.
[0017] The beneficial effects of this utility model are as follows: By setting up water-cooling and air-cooling mechanisms, the injection mold is cooled by circulating cooling water, while the air introduced by the fan cools the inside of the injection molding machine, thereby further cooling the surface of the injection mold and improving cooling efficiency. The spiral agitator is used to stir the cooling water in the water tank, so that the cooling water in the water tank and the returning cooling water can be quickly mixed to accelerate the cooling efficiency. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of a base injection cooling device proposed in this utility model; Figure 2 This is a perspective view of the water tank structure of a base injection molding cooling device proposed in this utility model; Figure 3 This is a perspective view of the circulating pump structure of a base injection molding cooling device proposed in this utility model; Figure 4 This is a perspective view of a serpentine tube structure of a base injection molding cooling device proposed in this utility model; Figure 5 This is a perspective view of the filter screen structure of a base injection molding cooling device proposed in this utility model; Figure 6 This is a perspective view of the first self-driven slide rail structure of a base injection molding cooling device proposed in this utility model; Figure 7 This is a perspective view of the scraper structure of a base injection molding cooling device proposed in this utility model; Figure 8 This is a perspective view of the second self-driving slide rail structure of a base injection molding cooling device proposed in this utility model; Figure 9 This is a perspective view of the air guide plate structure of a base injection molding cooling device proposed in this utility model; Figure 10 This is a perspective view of the air inlet structure of a base injection molding cooling device proposed in this utility model.
[0019] In the diagram: 1. Injection molding machine; 2. Injection mold; 3. Temperature sensor; 4. Water tank; 41. Water-cooled plate; 42. Serpentine tube; 43. Circulating pump; 44. Filter screen; 45. Concave clamping plate; 46. First self-driven slide rail; 47. Second self-driven slide rail; 48. Slide groove; 49. Third self-driven slide rail; 410. Scraper; 411. Spiral agitator; 412. Agitator motor; 5. Air inlet; 51. Fan; 52. Air guide plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figures 1-10 A base injection molding cooling device includes an injection molding machine 1 and an injection mold 2 disposed inside the injection molding machine 1. A temperature sensor 3 is fixedly installed on the upper surface of the injection molding machine 1. A water cooling mechanism and an air cooling mechanism are respectively disposed on the surface of the injection molding machine 1. The water cooling mechanism includes a water tank 4 and a water cooling plate 41 fixedly installed on one side surface of the injection mold 2. A serpentine tube 42 is disposed inside the water cooling plate 41.
[0022] To cool the injection mold 2, the water cooling mechanism also includes a circulating pump 43 installed on the upper surface of the water tank 4 cover. The water tank 4 is equipped with a filter screen 44. The suction end of the circulating pump 43 passes through the water tank 4 cover and the filter screen 44 in sequence via a pipe. One end of the serpentine tube 42 extends to the outside of the injection molding machine 1 and is fixedly connected to the outlet end of the circulating pump 43. The other end of the serpentine tube 42 is fixedly connected to the water tank 4 cover. The circulating pump 43 causes the cooling water in the water tank 4 to enter the serpentine tube 42 to cool the water cooling plate 41, thereby cooling the surface of the injection mold 2. After the cooling water carries away the heat, it flows back to the water tank 4 through the serpentine tube 42. At the same time, the filter screen 44 filters the returning cooling water.
[0023] To allow the filter screen 44 to leave the water tank 4, concave clamping plates 45 are provided on both sides of the upper surface of the filter screen 44. First self-driving slide rails 46 are symmetrically distributed and embedded on both sides of the water tank 4. The surface of the concave clamping plate 45 is fixedly connected to the slider surface of the first self-driving slide rail 46. The inner surface of the concave clamping plate 45 is slidably engaged with the surface of the water tank 4. A second self-driving slide rail 47 is fixedly installed on the surface of the concave clamping plate 45. The slider surface of the second self-driving slide rail 47 is fixedly connected to the surface of the filter screen 44. The movement of the slider on the first self-driving slide rail 46 causes the concave clamping plate 45 to move up and down along the surface of the water tank 4. The movement of the concave clamping plate 45 causes the filter screen 44 to move up and down. The movement of the slider on the second self-driving slide rail 47 causes the filter screen 44 to move.
[0024] To clean the filter screen 44, grooves 48 are provided on the opposite side surfaces of the two concave plates 45. A third self-driving slide rail 49 is fixedly installed on the inner wall of one of the grooves 48. A scraper 410 is fixedly connected to the slider surface of the third self-driving slide rail 49. The two ends of the scraper 410 are respectively slidably engaged with the inner walls of the two grooves 48. The scraper 410 moves along the surface of the filter screen 44 by the movement of the slider on the third self-driving slide rail 49.
[0025] In order to quickly mix the cooling water in the water tank 4 with the returning cooling water, a spiral agitator 411 is installed on the inner wall of the water tank 4 via bearings, and an agitator motor 412 is fixedly installed on the outer surface of the water tank 4. One end of the output shaft of the agitator motor 412 is fixedly connected to one end of the spiral agitator 411 via a coupling. The rotation of the output shaft of the agitator motor 412 drives the spiral agitator 411 connected to it to rotate, thereby accelerating the cooling speed of the cooling water in the water tank 4.
[0026] The air-cooling mechanism includes an air inlet 5 located on the back of the injection molding machine 1, and a fan 51 is fixedly installed on the surface of the air inlet 5.
[0027] To increase the air speed, the air-cooling mechanism also includes an air guide plate 52 disposed on the surface of the air inlet 5 away from the fan 51. One side surface of the air guide plate 52 is fixedly connected to the inner wall of the injection molding machine 1. The air guide plate 52 is used to increase the air speed at the air inlet 5, thereby accelerating the air-cooling efficiency.
[0028] By setting up water cooling and air cooling mechanisms, the injection mold 2 is cooled by circulating cooling water, and the air introduced by the fan 51 is used to cool the inside of the injection molding machine 1, thereby further cooling the surface of the injection mold 2 and improving the cooling efficiency. The spiral stirring paddle 411 is used to stir the cooling water in the water tank 4, so that the cooling water in the water tank 4 and the returning cooling water can be quickly mixed to accelerate the cooling efficiency.
[0029] Working principle: When in use, start the circulation pump 43 and the fan 51. The circulation pump 43 causes the cooling water in the water tank 4 to enter the serpentine tube 42 to cool the water-cooled plate 41, thereby cooling the surface of the injection mold 2. After the cooling water carries away the heat, it flows back to the water tank 4 through the serpentine tube 42. The returned cooling water is filtered by the filter screen 44 and then mixed with the cooling water in the water tank 4. Then, start the stirring motor 412. The rotation of the output shaft of the stirring motor 412 drives the spiral stirring paddle 411 connected to it to rotate, which accelerates the cooling speed of the cooling water in the water tank 4. The fan 51 introduces air into the injection molding machine 1 through the air inlet 5, so that the air passes through the air guide plate 52 to increase the wind speed, thereby improving the air cooling efficiency. When the filter screen 44 needs to be cleaned, remove the cover of the water tank 4. The upward movement of the slider on the first self-driven slide rail 46 causes the concave plate 45 to move up along the surface of the water tank 4. The upward movement of the concave plate 45 causes the filter screen 44 to move up, so that the filter screen 44 leaves the water tank 4. Then, the movement of the slider on the second self-driven slide rail 47 causes the filter screen 44 to move. Then, the movement of the slider on the third self-driven slide rail 49 causes the scraper 410 to move along the surface of the filter screen 44, so that the scraper 410 can sweep out the impurities on the surface of the filter screen 44.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A base injection molding cooling device, comprising an injection molding machine (1) and an injection mold (2) disposed inside the injection molding machine (1), characterized in that: A temperature sensor (3) is fixedly installed on the upper surface of the injection molding machine (1). A water cooling mechanism and an air cooling mechanism are respectively provided on the surface of the injection molding machine (1). The water cooling mechanism includes a water tank (4) and a water cooling plate (41) fixedly installed on one side surface of the injection mold (2). A serpentine tube (42) is provided inside the water cooling plate (41). The air-cooling mechanism includes an air inlet (5) on the back of the injection molding machine (1), and a fan (51) is fixedly installed on the surface of the air inlet (5).
2. The base injection molding cooling device according to claim 1, characterized in that: The water cooling mechanism also includes a circulation pump (43) installed on the upper surface of the tank cover of the water tank (4). The inside of the water tank (4) is provided with a filter screen (44). The suction end of the circulation pump (43) passes through the tank cover of the water tank (4) and the filter screen (44) in sequence through a pipe. One end of the serpentine tube (42) extends to the outside of the injection molding machine (1) and is fixedly connected to the outlet end of the circulation pump (43). The other end of the serpentine tube (42) is fixedly connected to the tank cover of the water tank (4).
3. The base injection molding cooling device according to claim 2, characterized in that: The filter screen (44) has concave plates (45) on both sides of its upper surface. The water tank (4) has first self-driving slide rails (46) symmetrically distributed on both sides of its surface. The surface of the concave plate (45) is fixedly connected to the slider surface of the first self-driving slide rail (46). The inner surface of the concave plate (45) is slidably engaged with the surface of the water tank (4). The surface of the concave plate (45) is fixedly installed with a second self-driving slide rail (47). The slider surface of the second self-driving slide rail (47) is fixedly connected to the surface of the filter screen (44).
4. The base injection molding cooling device according to claim 3, characterized in that: The two concave plates (45) each have a groove (48) on one side of their respective surfaces. A third self-driving slide rail (49) is fixedly installed on the inner wall of one of the grooves (48). A scraper (410) is fixedly connected to the slider surface of the third self-driving slide rail (49). The two ends of the scraper (410) are respectively slidably engaged with the inner walls of the two grooves (48).
5. A base injection molding cooling device according to claim 1, characterized in that: The inner wall of the water tank (4) is fitted with a spiral stirring paddle (411) via a bearing, and the outer surface of the water tank (4) is fixedly fitted with a stirring motor (412). One end of the output shaft of the stirring motor (412) is fixedly connected to one end of the spiral stirring paddle (411) via a coupling.
6. The base injection molding cooling device according to claim 1, characterized in that: The air-cooling mechanism also includes an air guide plate (52) disposed on the surface of the air inlet (5) away from the fan (51), and one side surface of the air guide plate (52) is fixedly connected to the inner wall of the injection molding machine (1).