Cooling device for reflective film production

Abstract

The utility model belongs to the technical field of reflective film production, and particularly relates to a cooling device for reflective film production, which comprises a box body, inlets and outlets are arranged on two sides in the box body, and a first heat exchange roller, a second heat exchange roller and a third heat exchange roller are fixedly connected in the box body at equal intervals. Connecting pipes are fixedly connected between the first heat exchange roller and the second heat exchange roller and between the second heat exchange roller and the third heat exchange roller; the utility model provides a cooling device for reflective film production, and solves the problems that in the prior art, when a reflective film is cooled, the reflective film is generally cooled by blowing air, but the reflective film is easy to bulge and deform in an air cooling and direct blowing mode, so that the production quality of the reflective film is influenced, and the production cost is reduced. And the problem that the quality of the reflective film is affected due to the facts that the reflective film is difficult to cool stage by stage and the reflective film is easy to crack and small gaps are generated due to the fact that the cooling mode of blowing is direct is solved.

Description

Technical Field

[0001] This utility model belongs to the field of reflective film production, specifically a cooling device for reflective film production. Background Technology

[0002] Reflective film is a pre-made thin film that can be directly applied as a retroreflective material. It is made using glass bead technology, microprism technology, synthetic resin technology, thin film technology, coating technology, and micro-replication technology. It is usually available in white, yellow, red, green, blue, brown, orange, fluorescent yellow, fluorescent orange, and fluorescent yellow-green. Fluorescent red and fluorescent pink reflective films are also available from abroad. During the production process, a cooling device is required to cool the workpiece.

[0003] In existing technologies, when cooling reflective film, air cooling is generally used to cool the reflective film. However, direct air cooling can easily cause the reflective film to bulge and deform, thus affecting the quality of the reflective film. Furthermore, the air cooling method is too direct and makes it difficult to cool the reflective film in stages, which can easily lead to cracks and small gaps in the reflective film, thus affecting its quality. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the main objective of this utility model is to provide a cooling device for the production of reflective film.

[0005] The technical solution of this utility model is as follows: A cooling device for reflective film production includes a box body. Inlet and outlet are provided on both sides of the inside of the box body. A first heat exchange roller, a second heat exchange roller, and a third heat exchange roller are fixedly connected at equal intervals inside the box body. Connecting pipes are fixedly connected between the first heat exchange roller and the second heat exchange roller, and between the second heat exchange roller and the third heat exchange roller. A slider is slidably connected to the bottom of the inner wall of the box body and below the second heat exchange roller. A slider is symmetrically slidably connected to the bottom of the inner wall of the box body and below the third heat exchange roller. The tops of the multiple sliders are respectively installed below the second heat exchange roller and the third heat exchange roller, and a first fan and two second fans are respectively installed. A transmission assembly is provided on the outside of the box body.

[0006] In a preferred embodiment, the transmission assembly includes a take-up roller and a linkage unit. A fixed plate is symmetrically fixedly connected to one side of the outer side of the housing. A take-up roller is rotatably connected between the two fixed plates. One end of the take-up roller extends to the outside of the fixed plate and is fixedly connected to a first pulley. A second pulley is rotatably connected to one side of the outer side of the housing and below the take-up roller via a limiting plate. The second pulley and the first pulley are connected by a transmission belt. The slider can reciprocate through the linkage unit.

[0007] In a preferred embodiment, the linkage unit includes a first bevel gear, which is fixedly connected to the outer side of the second pulley. A rotating rod is rotatably connected to the outer side of the housing. A second bevel gear is fixedly connected to one outer end of the rotating rod. The first bevel gear and the second bevel gear are meshed together. Third bevel gears are fixedly connected to both outer sides of the rotating rod. A first reciprocating screw and a second reciprocating screw are rotatably connected inside the housing and below the second and third heat exchange rollers, respectively. A fourth bevel gear is fixedly connected to one end of each of the first and second reciprocating screws, extending to the outside of the housing. The two fourth bevel gears mesh with the corresponding two third bevel gears. A slider below the first fan is threaded to the outside of the first reciprocating screw. A limit block is fixedly connected to the outside of the second reciprocating screw. Two sliders below the second fan are threaded to both outer sides of the second reciprocating screw.

[0008] In a preferred embodiment, limit rods are fixedly connected inside the housing and below the first and second reciprocating screws respectively, and multiple sliders are slidably connected to the outside of the corresponding limit rods.

[0009] In a preferred embodiment, one end of the first heat exchange roller extends to the outside of the housing and is fixedly connected to a water inlet, and one end of the third heat exchange roller extends to the outside of the housing and is fixedly connected to a water outlet, with a solenoid valve installed on the outside of the water outlet.

[0010] In a preferred embodiment, casters are symmetrically installed on both sides of the bottom of the housing, and the first fan, the second fan, the winding roller, and the solenoid valve are all electrically connected to an external controller.

[0011] The beneficial effects of this utility model are as follows:

[0012] This device uses the first and second fans to blow air onto the second and third heat exchange rollers, creating a temperature difference between them. This achieves staged cooling of the reflective film, preventing cracking and small gaps caused by direct cooling, which would affect the quality of the reflective film. At the same time, the tension maintained by the first, second, and third heat exchange rollers avoids the bulging and deformation that can easily occur with traditional direct air cooling. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a rear view of the present invention;

[0017] Figure 4 This is a perspective view of the first heat exchange roller in this utility model;

[0018] Figure 5 For the present utility model Figure 3 Enlarged view of point A in the middle.

[0019] In the diagram: 1. Housing; 2. Inlet / outlet; 3. First heat exchange roller; 4. Water inlet; 5. Connecting pipe; 6. Slider; 7. First fan; 8. Second fan; 9. Winding roller; 10. Fixing plate; 11. First pulley; 12. Second pulley; 13. Transmission belt; 14. First bevel gear; 15. Rotating rod; 16. Second bevel gear; 17. Third bevel gear; 18. First reciprocating screw; 19. Second reciprocating screw; 20. Fourth bevel gear; 21. Limiting block; 22. Water outlet; 23. Caster wheel; 24. Second heat exchange roller; 25. Third heat exchange roller. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figure 1-5 A cooling device for reflective film production includes a housing 1. Inlet and outlet 2 are provided on both sides of the housing 1. A first heat exchange roller 3, a second heat exchange roller 24, and a third heat exchange roller 25 are fixedly connected at equal intervals inside the housing 1. Connecting pipes 5 are fixedly connected between the first heat exchange roller 3 and the second heat exchange roller 24, and between the second heat exchange roller 24 and the third heat exchange roller 25. A slider 6 is slidably connected to the bottom of the inner wall of the housing 1, below the second heat exchange roller 24. Sliding sliders 6 are symmetrically connected to the bottom of the inner wall of the housing 1, below the third heat exchange roller 25. A first fan 7 and two second fans 8 are respectively installed on the tops of the sliders 6, below the second heat exchange roller 24 and the third heat exchange roller 25. A transmission assembly is provided on the outside of the housing 1.

[0022] Specifically, the transmission assembly includes a take-up roller 9 and a linkage unit. A fixed plate 10 is symmetrically fixed to one side of the outer side of the housing 1. The take-up roller 9 is rotatably connected between the two fixed plates 10. One end of the take-up roller 9 extends to the outside of the fixed plate 10 and is fixedly connected to a first pulley 11. A second pulley 12 is rotatably connected to one side of the outer side of the housing 1, below the take-up roller 9, via a limiting plate. The second pulley 12 and the first pulley 11 are connected by a transmission belt 13. The slider 6 can reciprocate via the linkage unit, which includes a first bevel gear 14, fixedly connected to the outer side of the second pulley 12. A rotating rod 15 is rotatably connected to one side of the outer side of the housing 1, and the outer end of the rotating rod 15 is fixedly connected to the second bevel gear 1. 6. The first bevel gear 14 and the second bevel gear 16 are meshed and connected. The outer sides of the rotating rod 15 are fixedly connected with the third bevel gear 17. The first reciprocating screw 18 and the second reciprocating screw 19 are rotatably connected inside the housing 1 and below the second heat exchange roller 24 and the third heat exchange roller 25, respectively. One end of the first reciprocating screw 18 and the second reciprocating screw 19 extends to the outside of the housing 1 and is fixedly connected with the fourth bevel gear 20. The two fourth bevel gears 20 are meshed and connected with the corresponding two third bevel gears 17. The slider 6 below the first fan 7 is threaded to the outside of the first reciprocating screw 18. The outside of the second reciprocating screw 19 is fixedly connected with the limit block 21. The sliders 6 below the two second fans 8 are threaded to the outer sides of the second reciprocating screw 19, respectively.

[0023] The above technical solution involves first passing the reflective film through the inlet / outlet 2 on both sides of the housing 1, and simultaneously stretching it taut over the outside of the first heat exchange roller 3, the second heat exchange roller 24, and the third heat exchange roller 25. Then, one end of the reflective film is wound around the outside of the take-up roller 9. Next, cooling water is injected into the inside of the first heat exchange roller 3 through the water inlet 4. The cooling water then circulates inside the second and third heat exchange rollers 24 and 25 through two connecting pipes 5. At this point, the cooling water temperature inside the first, second, and third heat exchange rollers 24 and 25 is the same. The take-up roller 9 and the first fan are then activated via an external controller. The first fan 7 and the second fan 8, along with the winding roller 9, can drive the reflective film to wind up and cooperate with the cooling of the housing 1. The first fan 7 below the second heat exchange roller 24 can cool the internal cooling water, and the two second fans 8 below the third heat exchange roller 25 can further cool the internal cooling water. In this way, a temperature difference can be achieved between the first heat exchange roller 3, the second heat exchange roller 24, and the third heat exchange roller 25, realizing staged cooling of the reflective film. When the winding roller 9 rotates, it can drive the external first pulley 11 to rotate, and the first pulley 11 then drives the second pulley 15 through the transmission belt 13. The pulley 12 rotates with the first bevel gear 14, causing the first bevel gear 14 to drive the second bevel gear 16 and the rotating rod 15 to rotate through meshing. The rotating rod 15 then drives the two external third bevel gears 17 to rotate, causing the third bevel gears 17 to drive the corresponding fourth bevel gears 20 to rotate through meshing. The two fourth bevel gears 20 then drive the first reciprocating screw 18 and the second reciprocating screw 19 to rotate. The first reciprocating screw 18 and the second reciprocating screw 19 can then drive the first fan 7 and the two second fans 8 to reciprocate through threaded connections with the slider 6, thereby expanding... Regarding heat dissipation, this device uses the first fan 7 and the second fan 8 to blow air onto the second heat exchange roller 24 and the third heat exchange roller 25, creating a temperature difference between them. This achieves staged cooling of the reflective film, preventing direct cooling from causing cracks and small gaps that could affect its quality. Furthermore, the tension maintained by the first heat exchange roller 3, the second heat exchange roller 24, and the third heat exchange roller 25 avoids the bulging and deformation that can occur with traditional direct airflow cooling.

[0024] Specifically, limit rods are fixedly connected inside the housing 1 and below the first reciprocating screw 18 and the second reciprocating screw 19 respectively. Multiple sliders 6 are slidably connected to the outside of the corresponding limit rods. One end of the first heat exchange roller 3 extends to the outside of the housing 1 and is fixedly connected to a water inlet 4. One end of the third heat exchange roller 25 extends to the outside of the housing 1 and is fixedly connected to a water outlet 22. A solenoid valve is installed outside the water outlet 22.

[0025] With the above technical solution, when the cooling water needs to be replaced, the solenoid valve is opened by the external controller, and the water is drained through the outlet 22. Then, new cooling water is injected through the inlet 4 to complete the replacement.

[0026] Specifically, casters 23 are symmetrically installed on both sides of the bottom of the housing 1, and the first fan 7, the second fan 8, the winding roller 9 and the solenoid valve are all electrically connected to the external controller.

[0027] Through the above technical solution, the universal wheels 23 make it easy for staff to move the device at will, improving ease of use. The external controller allows staff to quickly control the first fan 7, the second fan 8, the winding roller 9, and the solenoid valve.

[0028] In use, the reflective film is first passed through the inlet / outlet 2 on both sides of the housing 1, and simultaneously stretched taut on the outside of the first heat exchange roller 3, the second heat exchange roller 24, and the third heat exchange roller 25. Then, one end of the reflective film is wound around the outside of the take-up roller 9. Cooling water is then poured into the inside of the first heat exchange roller 3 through the water inlet 4. The cooling water then flows through the two connecting pipes 5 into the inside of the second and third heat exchange rollers 24 and 25. At this time, the cooling water temperature inside the first, second, and third heat exchange rollers 24 and 25 is the same. The take-up roller 9, the first fan 7, and the second fan 8 are started by the external controller. The take-up roller 9 can drive the reflective film to be wound up and cooperate with the cooling of the housing 1. The first fan 7 below the third heat exchange roller 25 can cool the internal cooling water, and the two second fans 8 below the third heat exchange roller 25 can further cool the internal cooling water. In this way, a temperature difference is achieved between the first heat exchange roller 3, the second heat exchange roller 24, and the third heat exchange roller 25, realizing staged cooling of the reflective film. When the winding roller 9 rotates, it can drive the external first pulley 11 to rotate. The first pulley 11 then drives the second pulley 12 and the first bevel gear 14 to rotate through the transmission belt 13. This causes the first bevel gear 14 to drive the second bevel gear 16 and the rotating rod 15 to rotate through the meshing relationship. The rotating rod 15 can then drive the two external third bevel gears 17 to rotate. The movement causes the third bevel gear 17 to drive the corresponding fourth bevel gear 20 to rotate through meshing. The two fourth bevel gears 20 then drive the first reciprocating screw 18 and the second reciprocating screw 19 to rotate. The first reciprocating screw 18 and the second reciprocating screw 19 can then drive the first fan 7 and the two second fans 8 to reciprocate through threaded connections with the slider 6, thereby expanding the heat dissipation range. This device uses the airflow from the first fan 7 and the second fan 8 to blow air onto the second heat exchange roller 24 and the third heat exchange roller 25, creating a temperature difference between the first heat exchange roller 3, the second heat exchange roller 24, and the third heat exchange roller 25. This achieves staged cooling of the reflective film, preventing direct cooling of the reflective film from causing glare. The membrane cracks, resulting in small gaps that affect the quality of the reflective film. Simultaneously, the tension maintained by the first heat exchange roller 3, the second heat exchange roller 24, and the third heat exchange roller 25 prevents the reflective film from bulging and deforming, which is common with traditional wind-driven cooling. When the cooling water needs to be replaced, the external controller opens the solenoid valve, draining water through the outlet 22 and then injecting new cooling water through the inlet 4. The included casters 23 allow for easy movement of the device, improving usability. The external controller allows for quick and easy control of the first fan 7, the second fan 8, the winding roller 9, and the solenoid valve.

[0029] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling device for producing reflective film, comprising a housing (1), characterized in that, The box (1) has inlet and outlet (2) on both sides inside. The box (1) has a first heat exchange roller (3), a second heat exchange roller (24) and a third heat exchange roller (25) fixedly connected at equal intervals. The first heat exchange roller (3) and the second heat exchange roller (24) are fixedly connected to each other and the second heat exchange roller (24) and the third heat exchange roller (25). The bottom of the inner wall of the box (1) and below the second heat exchange roller (24) is slidably connected to a slider (6). The bottom of the inner wall of the box (1) and below the third heat exchange roller (25) is symmetrically connected to a slider (6). The tops of the multiple sliders (6) are respectively located below the second heat exchange roller (24) and the third heat exchange roller (25) and are respectively equipped with a first fan (7) and two second fans (8). The box (1) is provided with a transmission assembly on the outside.

2. The cooling device for producing reflective film according to claim 1, characterized in that, The transmission assembly includes a take-up roller (9) and a linkage unit. A fixed plate (10) is symmetrically fixedly connected to one side of the outer side of the housing (1). A take-up roller (9) is rotatably connected between the two fixed plates (10). One end of the take-up roller (9) extends to the outside of the fixed plate (10) and is fixedly connected to a first pulley (11). A second pulley (12) is rotatably connected to one side of the outer side of the housing (1) and below the take-up roller (9) through a limiting plate. The second pulley (12) and the first pulley (11) are connected by a transmission belt (13). The slider (6) can reciprocate through the linkage unit.

3. The cooling device for producing reflective film according to claim 2, characterized in that, The linkage unit includes a first bevel gear (14), which is fixedly connected to the outer side of the second pulley (12). A rotating rod (15) is rotatably connected to the outer side of the housing (1). A second bevel gear (16) is fixedly connected to one outer end of the rotating rod (15). The first bevel gear (14) and the second bevel gear (16) are meshed together. A third bevel gear (17) is fixedly connected to both outer sides of the rotating rod (15). A first reciprocating screw is rotatably connected inside the housing (1) and below the second heat exchange roller (24) and the third heat exchange roller (25), respectively. 18) and the second reciprocating screw (19), one end of the first reciprocating screw (18) and the second reciprocating screw (19) are both fixedly connected to the outside of the housing (1) with a fourth bevel gear (20), the two fourth bevel gears (20) are respectively meshed with the two corresponding third bevel gears (17), the slider (6) below the first fan (7) is threaded to the outside of the first reciprocating screw (18), the outside of the second reciprocating screw (19) is fixedly connected with a limit block (21), and the sliders (6) below the two second fans (8) are respectively threaded to the outside of the second reciprocating screw (19).

4. A cooling device for producing reflective film according to claim 3, characterized in that, Limiting rods are fixedly connected inside the housing (1) and below the first reciprocating screw (18) and the second reciprocating screw (19) respectively, and multiple sliders (6) are slidably connected to the outside of the corresponding limiting rods.

5. A cooling device for producing reflective film according to claim 4, characterized in that, One end of the first heat exchange roller (3) extends to the outside of the box (1) and is fixedly connected to a water inlet (4). One end of the third heat exchange roller (25) extends to the outside of the box (1) and is fixedly connected to a water outlet (22). A solenoid valve is installed on the outside of the water outlet (22).

6. A cooling device for producing reflective film according to claim 5, characterized in that, The bottom sides of the housing (1) are symmetrically equipped with casters (23), and the first fan (7), the second fan (8), the winding roller (9) and the solenoid valve are all electrically connected to an external controller.

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