Cooling device for engineering plastic processing
By designing the circulating tank and circulating pump system, the problems of cooling water waste and high cost caused by the length of the cooling water tank were solved, thereby improving cooling efficiency and saving resources.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN HENGLING HAORUI PLASTIC TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-15
AI Technical Summary
In existing engineering plastic cooling devices, the cooling water tank is too long, resulting in a large amount of cooling water consumption, high cost, and limited cooling effect.
The system employs a circulating tank and circulating pump system, and utilizes a rectangular water tank and sleeve design to achieve the recycling of cooling water. Residual water is scraped off during the movement of the plastic column, thereby improving heat exchange efficiency.
It improves cooling efficiency, reduces cooling water waste, lowers costs, and ensures the quality of engineering plastics.
Smart Images

Figure CN224240321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering plastics processing technology, and in particular to a cooling device for engineering plastics processing. Background Technology
[0002] Engineering plastics, after being hot-melt extruded, require cooling via air and water. Existing water-cooling tanks are rectangular in structure. During cooling, the extruded, columnar plastic column passes over the top of the cooling water. As it passes through the cooling water, the water partially or completely envelops the plastic column, thus achieving cooling. However, this cooling method suffers from uncertain contact between the plastic column and the cooling water. To ensure sufficient contact, a relatively long water tank is generally required. This allows the plastic column to bend downwards at the middle and immerse itself in the cooling water, improving the cooling effect. However, increasing the length of the cooling tank increases the amount of cooling water used and the cost of the cooling tank itself. Utility Model Content
[0003] This utility model provides a cooling device for engineering plastic processing, which solves the shortcomings of the prior art and addresses the problem of limited cooling effect of cooling water tanks, and has strong practicality.
[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:
[0005] A cooling device for processing engineering plastics includes a circulation tank. A compensation water pipe is connected to one side of the circulation tank. A bottom ring is welded to the circulation tank. Multiple vertical rods are welded to the bottom ring. A rectangular water tank is welded to the upper end of the vertical rods. Wing plates are welded to both ends of the rectangular water tank along its length. An inclined plate is bent at the outer end of the wing plate. An end vertical plate is bent at the upper end of the inclined plate. The upper end face of the end vertical plate is flush with the upper end face of the rectangular water tank. Side plates are welded to both sides of the end vertical plate, the inclined plate, and the wing plates. A water outlet pipe is connected to the lower end of the wing plate and is connected to the circulation tank.
[0006] The rectangular water tank has inlet and outlet holes at both ends, and a through hole on the end plate. The through hole is coaxial with the inlet and outlet holes.
[0007] Furthermore, sleeves are welded to the inner walls of both ends of the rectangular water tank, and the sleeves are coaxial and connected with the through hole and the inlet / outlet hole.
[0008] Furthermore, a long, narrow drain hole is provided on one side of the rectangular water tank. The sleeve, through hole, and inlet / outlet holes are all located below the drain hole, meaning that the sleeve, through hole, and inlet / outlet holes are submerged in the cooling water. A flow guide plate is welded to one side of the rectangular water tank. The outer end of the flow guide plate extends outward at an angle, and a drain groove is provided at the lower end of the flow guide plate. The inner end of the flow guide plate is welded to the drain hole. Protective plates are welded to both sides of the flow guide plate. A drain pipe is connected to the lower end of the drain groove, and the drain pipe is connected to the circulation tank.
[0009] Furthermore, a circulation pump is installed on one side of the circulation tank, and an inlet pipe is connected to the outlet of the circulation pump. The other end of the inlet pipe is connected to a rectangular box, which is located at the bottom of the rectangular water tank. Multiple inlet holes are opened on the upper wall of the rectangular box.
[0010] Furthermore, multiple inclined plates are welded to the upper wall of the guide plate, and there is an angle between the length direction of the inclined plates and the length direction of the guide plate.
[0011] Furthermore, side vertical plates are welded to the outer wall of the side plate at one end. A spring pin is inserted through the upper end of the side vertical plate. An end cap is provided on the outer end of the spring pin. A movable block is provided on the inner end of the spring pin. A scraper is welded to the lower end of the movable block. An arc groove is opened on the inner wall of the scraper. A spring is sleeved on the spring pin. The spring is located between the movable block and the side vertical plate.
[0012] Furthermore, the arc-shaped surface of the arc-shaped groove has a conical structure.
[0013] Furthermore, a protrusion is welded to the outer end of the movable block, and an extended protrusion is welded to the upper end of the side vertical plate. A pair of connecting protrusions are rotatably provided on the outer end of the extended protrusion via a hinge shaft. An L-shaped hanging plate is welded to the outer end of the connecting protrusion, and the vertical section of the L-shaped hanging plate is hung on the protrusion.
[0014] The advantages of the above technical solution are:
[0015] In this invention, the plastic column is completely submerged in cooling water during cooling, thereby improving the efficiency of heat exchange. When the plastic column moves, the cooling water carried out is reinjected into the rectangular water tank through a circulation pump, thus avoiding a large waste of cooling water.
[0016] This invention continuously circulates cooling water to lower its temperature, thereby improving the heat transfer efficiency between the cooling water and the plastic column.
[0017] This invention can also scrape off cooling water adhering to plastic columns to prevent residual cooling water from affecting the quality of engineering plastics. Attached Figure Description
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.
[0019] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .
[0020] Figure 2 A magnified view of point A is shown.
[0021] Figure 3 A three-dimensional structure of one embodiment is shown. Figure 2 .
[0022] Figure 4 A three-dimensional structure of one embodiment is shown. Figure 3 . Detailed Implementation
[0023] like Figures 1-4 As shown, a cooling device for engineering plastic processing includes a circulation tank 1. A compensating water pipe is connected to one side of the circulation tank 1. A bottom ring 2 is welded to the circulation tank 1. Multiple vertical rods 20 are welded to the bottom ring 2. A rectangular water tank 3 is welded to the upper end of the vertical rods 20. Wing plates are welded to both ends of the rectangular water tank 3 along its length. An inclined plate 33 is bent at the outer end of the wing plate. An end vertical plate 34 is bent at the upper end of the inclined plate 33. The upper end face of the end vertical plate 34 is flush with the upper end face of the rectangular water tank 3. Side plates 35 are welded to both sides of the end vertical plate 34, the inclined plate 33, and the wing plates. A water outlet pipe 36 is connected to the lower end of the wing plate and is connected to the circulation tank 1. Inlet and outlet holes are opened at both ends of the rectangular water tank 3. Through holes are opened on the end vertical plate 34. The through holes are coaxial with the inlet and outlet holes. Sleeves 30 are welded to the inner walls of both ends of the rectangular water tank 3. The sleeves 30 are coaxial with and connected to the through holes and the inlet and outlet holes. A circulation pump 45 is installed on one side of the circulation tank 1. A water inlet pipe 44 is connected to the outlet of the circulation pump 45. The other end of the water inlet pipe 44 is connected to a rectangular box 31. The rectangular box 31 is located at the bottom of the rectangular water tank 3. Multiple water inlet holes 32 are opened on the upper wall of the rectangular box 31.
[0024] In this embodiment, when cooling the plastic column, cooling water is introduced into the circulation tank 1 through a compensation water pipe. The cooling water is then pumped into the rectangular tank 31 by the circulation pump 45, and subsequently sprayed into the rectangular water tank 3 through the water inlet 32 until the cooling water submerges the casing 30, etc. During cooling, the plastic column passes through the rectangular water tank 3, and the cooling water within it cools the plastic column. Part of the cooling water is discharged through the inlet and outlet holes, and the discharged cooling water is discharged into the circulation tank 1 through the outlet pipe 36, and then pumped back into the rectangular water tank 3. This avoids water waste. Furthermore, the continuous replenishment of cooling water ensures that the cooling water always surrounds the plastic column, thereby improving the cooling effect.
[0025] In some embodiments, a long strip-shaped drain hole 37 is provided on one side of the rectangular water tank 3, a flow guide plate 38 is welded to one side of the rectangular water tank 3, a plurality of inclined plates 39 are welded to the upper wall of the flow guide plate 38, there is an angle between the length direction of the inclined plates 39 and the length direction of the flow guide plate 38, the outer end of the flow guide plate 38 extends outward at an angle, a drain groove 40 is provided at the lower end of the flow guide plate 38, the inner end of the flow guide plate 38 is welded to the drain hole 37, a protective plate 42 is welded to both sides of the flow guide plate 38, a drain pipe 41 is connected to the lower end of the drain groove 40, and the drain pipe 41 is connected to the circulation tank 1.
[0026] In this embodiment, when the level of the injected cooling water exceeds the drain hole 37, the cooling water will be discharged into the drain tank 40 through the drain hole 37, and finally discharged into the circulation tank 1 through the drain pipe 41. In this way, the cooling water can be continuously circulated and cooled by the circulation pump 45. In order to improve the cooling effect of the cooling water, multiple inclined plates 39 are welded on the upper wall of the guide plate 38 to extend the flow path of the cooling water, thereby facilitating the cooling of the cooling water.
[0027] In some embodiments, side vertical plates 5 are welded to the outer wall of the side plate 35 at one end. A spring pin 52 is passed through the upper end of the side vertical plate 5. An end cap 50 is provided at the outer end of the spring pin 52. A movable block 53 is provided at the inner end of the spring pin 52. A scraper 54 is welded to the lower end of the movable block 53. An arc-shaped groove is formed on the inner wall of the scraper 54. The arc-shaped surface of the arc-shaped groove has a conical structure. A spring 51 is sleeved on the spring pin 52. The spring 51 is located between the movable block 53 and the side vertical plate 5. A protrusion 55 is welded to the outer end of the movable block 53. An outward protrusion 56 is welded to the upper end of the side vertical plate 5. A pair of connecting protrusions 57 are rotatably provided at the outer end of the outward protrusion 56 through a hinge shaft. An L-shaped hanging plate 58 is welded to the outer end of the connecting protrusion 57. The vertical section of the L-shaped hanging plate 58 is hung on the protrusion 55.
[0028] The scraper 54 provided in this embodiment facilitates the removal of cooling water from the plastic column. When the plastic column sways during movement, a spring is provided to ensure the scraping effect while preventing the plastic column from breaking. The L-shaped hanging plate 58 ensures that the scraper 54 is in an open state, making it easy to insert the plastic column into the arc-shaped groove of the scraper 54.
[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A cooling device for processing engineering plastics, characterized in that, The system includes a circulation tank (1), one side of which is connected to a compensating water pipe. A bottom ring (2) is welded onto the circulation tank (1), and multiple vertical rods (20) are welded onto the bottom ring (2). A rectangular water tank (3) is welded to the upper end of the vertical rods (20). Wing plates are welded to both ends of the rectangular water tank (3) along its length. An inclined plate (33) is bent at the outer end of the wing plate. An end vertical plate (34) is bent at the upper end of the inclined plate (33). The upper end face of the end vertical plate (34) is flush with the upper end face of the rectangular water tank (3). Side plates (35) are welded to both sides of the end vertical plate (34), the inclined plate (33), and the wing plate. A water outlet pipe (36) is connected to the lower end of the wing plate. The water outlet pipe (36) is connected to the circulation tank (1). The rectangular water tank (3) has inlet and outlet holes at both ends, and a through hole is provided on the end vertical plate (34). The through hole is coaxial with the inlet and outlet holes.
2. The cooling device for engineering plastics processing according to claim 1, characterized in that, The inner walls of both ends of the rectangular water tank (3) are welded with sleeves (30), and the sleeves (30) are coaxial and connected with the through hole and the inlet and outlet hole.
3. The cooling device for engineering plastics processing according to claim 1, characterized in that, A long strip-shaped drain hole (37) is provided on one side of the rectangular water tank (3). The sleeve (30), through hole and inlet / outlet hole are all located below the drain hole (37). A guide plate (38) is welded on one side of the rectangular water tank (3). The outer end of the guide plate (38) extends outward at an angle. A drain groove (40) is provided at the lower end of the guide plate (38). The inner end of the guide plate (38) is welded to the drain hole (37). A guard plate (42) is welded on both sides of the guide plate (38). A drain pipe (41) is connected to the lower end of the drain groove (40). The drain pipe (41) is connected to the circulation tank (1).
4. The cooling device for engineering plastics processing according to claim 3, characterized in that, A circulation pump (45) is installed on one side of the circulation tank (1). A water inlet pipe (44) is connected to the outlet of the circulation pump (45). The other end of the water inlet pipe (44) is connected to a rectangular box (31). The rectangular box (31) is located at the bottom of the rectangular water tank (3). Multiple water inlet holes (32) are opened on the upper wall of the rectangular box (31).
5. The cooling device for engineering plastics processing according to claim 3, characterized in that, Multiple inclined plates (39) are welded to the upper wall of the guide plate (38), and there is an angle between the length direction of the inclined plate (39) and the length direction of the guide plate (38).
6. The cooling device for engineering plastics processing according to claim 1, characterized in that, Side vertical plates (5) are welded to the outer wall of the side plate (35) at one end. A spring pin (52) is inserted through the upper end of the side vertical plate (5). An end cap (50) is provided on the outer end of the spring pin (52). A movable block (53) is provided on the inner end of the spring pin (52). A scraper (54) is welded to the lower end of the movable block (53). An arc groove is opened on the inner wall of the scraper (54). A spring (51) is sleeved on the spring pin (52). The spring (51) is located between the movable block (53) and the side vertical plate (5).
7. The cooling device for engineering plastics processing according to claim 6, characterized in that, The curved surface of the arc groove has a conical structure.
8. The cooling device for engineering plastics processing according to claim 6, characterized in that, The outer end of the movable block (53) is welded with a protrusion (55), and the upper end of the side vertical plate (5) is welded with an extended protrusion (56). The outer end of the extended protrusion (56) is provided with a pair of connecting protrusions (57) through a hinge shaft. The outer end of the connecting protrusion (57) is welded with an L-shaped hanging plate (58), and the vertical section of the L-shaped hanging plate (58) is hung on the protrusion (55).