A cooling device for PVC film production

Abstract

This utility model discloses a cooling device for PVC film production, belonging to the field of PVC film processing technology. It includes a base and a conveying mechanism and a water-cooling mechanism installed inside the base. The air-cooling mechanism includes a conveying component and two blowing components disposed inside the base. The two blowing components are disposed opposite each other between the conveying component, and the blowing components are inclined towards the direction of film movement. An adjustment component is disposed inside each blowing component. By setting the air outlet of the blowing mechanism towards the direction of film movement, cold air is blown out at a tangential angle "attached" to the film, without directly impacting the film surface. This effectively cools the film surface while reducing disturbance to the film material surface, thereby reducing film vibration during heat dissipation, decreasing the probability of film wrinkling, and minimizing the impact on the uniformity of the finished product.

Description

Technical Field

[0001] This utility model relates to the field of PVC film processing technology, and specifically to a cooling device for PVC film production. Background Technology

[0002] PVC film is a plastic film made primarily of polyvinyl chloride. It features corrosion resistance, good insulation, and low cost, and is widely used in packaging, building materials, and other fields. To quickly solidify molten PVC, prevent deformation, control crystallinity, ensure the film's physical properties, improve production efficiency, and prevent sticking, cooling is required during production. Cooling methods typically include roller cooling or air cooling.

[0003] As shown in the reference case "A PVC Film Cooling Device" announcement number "CN215882275U", this utility model solves the problem that existing film cooling devices usually have a relatively simple method of cooling the film during use, which leads to the inability to effectively cool the film during equipment use, and the film is prone to damage or wrinkles due to the inability to cool the film in time.

[0004] Although the aforementioned application improves the cooling effect of the PVC film by setting up a cold water tank in conjunction with a cooling box and an air hood to simultaneously cool the film with rollers and air, thereby reducing the problem of film damage or wrinkles, the air cooling of this application is achieved by blowing air vertically onto the film through two air hoods. This can easily cause the film to shake and wrinkle during movement, affecting the uniformity of the finished product.

[0005] Based on this, the present invention designs a cooling device for PVC film production to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a cooling device for PVC film production.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A cooling device for PVC film production includes a base, a conveying mechanism, and a water cooling mechanism installed inside the base.

[0009] Furthermore, the air-cooling mechanism includes a conveying component and two blowing components disposed inside the base. The two blowing components are disposed opposite each other between the conveying component. The blowing components are inclined in the direction of the film's movement, and the blowing components are provided with an adjustment component inside.

[0010] Furthermore, the blower assembly includes a blower housing rotatably connected to the inner wall of the base, and two windproof baffles are rotatably connected to the inner wall of the blower housing, with the two windproof baffles arranged opposite to each other.

[0011] Furthermore, the inner bottom wall of the blower housing is equipped with multiple air nozzles, the inner wall of the blower housing is provided with an air pipe, and an air pump is fixedly connected to the side of the base. The multiple air nozzles are connected to the air pump through the air pipe.

[0012] Furthermore, the adjustment component is disposed between two windshields, one end of which has a sliding groove, and the adjustment component includes sliders that are slidably connected to the two sliding grooves respectively.

[0013] Furthermore, a threaded block is rotatably connected to the end of the slider away from the windshield, and a connecting plate is provided between the two threaded blocks. The two threaded blocks are slidably connected to the inner wall of the connecting plate, and two threaded rods are rotatably connected inside the connecting plate, with the two threaded rods arranged opposite each other.

[0014] Furthermore, the threaded block is disposed on the surface of the threaded rod, one end of the threaded rod is rotatably connected to the inner wall of the connecting plate and the other end is fixedly connected to a first bevel gear, and two first bevel gears are disposed at the adjacent ends of the two threaded rods.

[0015] Furthermore, a second bevel gear is provided between the two first bevel gears, and both first bevel gears mesh with the second bevel gear. The bottom end of the second bevel gear is rotatably connected to the inner wall of the connecting plate. The bottom end of the second bevel gear passes through the connecting plate and is fixedly connected to a fixing block. The cross-section of the fixing block is a regular hexagon.

[0016] Furthermore, the end of the blower housing furthest from the adjustment component extends through the base and is fixedly connected to a worm gear, and a worm is rotatably connected to the surface of the base, with the worm gear meshing with the worm gear. Beneficial effects

[0017] 1. By setting the air outlet of the blower mechanism to be oriented towards the direction of film movement, cold air is blown out at a tangential angle to "attach" the film without directly impacting the film surface. This can cool the surface of the film while effectively reducing disturbance to the film material surface, thereby reducing the shaking of the film during heat dissipation, reducing the probability of film wrinkling, and reducing the impact on the uniformity of the finished product.

[0018] 2. By setting an adjustment component, the opening and closing size of the windshield can be controlled, thereby controlling the air volume of the blower housing. Users can flexibly adjust the opening size of the air outlet channel according to process parameters such as film width, linear velocity, and film thickness, thereby controlling the air volume and wind speed per unit time and achieving a more stable cooling environment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a cooling device for PVC film production according to the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the air-cooling mechanism of a cooling device for PVC film production according to the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of a blowing assembly of a cooling device for PVC film production according to the present invention;

[0023] Figure 4 This is a schematic diagram showing the installation of the adjustment components and windproof baffle of the main body of a cooling device for PVC film production according to this utility model.

[0024] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a cross-sectional view of the adjustment component of the main body of a cooling device for PVC film production according to the present invention.

[0026] 100. Base; 200. Conveying mechanism; 300. Water cooling mechanism; 400. Air cooling mechanism; 410. Conveying assembly; 420. Blowing assembly; 421. Blower housing; 422. Wind shield; 423. Air nozzle; 424. Air pump; 425. Worm gear; 426. Worm; 430. Adjusting assembly; 431. Connecting plate; 432. Slider; 4321. Threaded block; 433. Threaded rod; 434. First bevel gear; 435. Second bevel gear. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-6 A cooling device for PVC film production includes a base 100, a conveying mechanism 200 and a water cooling mechanism 300 installed inside the base 100.

[0030] The air-cooling mechanism 400 includes a conveying component 410 disposed inside the base 100 and two blowing components 420. The two blowing components 420 are disposed opposite to each other between the conveying component 410. The blowing components 420 are inclined to the direction of film movement. An adjustment component 430 is disposed inside the blowing components 420.

[0031] In some embodiments, such as Figure 1 , Figure 2 as well as Figure 3 As shown, in a preferred embodiment of the present invention, the blower assembly 420 includes a blower shell 421 rotatably connected to the inner wall of the base 100. Two windproof baffles 422 are rotatably connected to the inner wall of the blower shell 421. The two windproof baffles 422 are arranged opposite to each other. Multiple air nozzles 423 are installed on the inner bottom wall of the blower shell 421. An air pipe is provided on the inner wall of the blower shell 421. An air pump 424 is fixedly connected to the side of the base 100. The multiple air nozzles 423 are connected to the air pump 424 through the air pipe.

[0032] In this embodiment, the conveying mechanism 200 includes a cooling cylinder and a limiting roller. The limiting roller is located below the cooling cylinder. The film passes below the limiting roller and then enters the water-cooling mechanism 300 from above the cooling cylinder. The water-cooling mechanism 300 includes a cold water tank. Guide rollers are rotatably connected to the top of both sides of the cold water tank. A transmission shaft is provided inside the middle of the cold water tank. The transmission shaft is driven by a motor and is located below the two guide rollers. The film passes above the guide roller near the cooling cylinder, then below the transmission shaft, and then above the guide roller on the other side before entering the conveying assembly 410 of the air-cooling mechanism 400. The conveying assembly 410 includes two guide rollers and three guide rollers arranged in a triangular pattern. Two blowing assemblies 420 are disposed at... Between every two adjacent guide rollers, after the film passes the upper surface of the guide roller of the water-cooling mechanism 300, it passes under the guide roller of the conveying assembly 410 near the water-cooling mechanism 300, then passes over the middle guide roller and under the guide roller away from the water-cooling mechanism 300 to complete the cooling operation. A take-up roller needs to be set on the side of the device near the air-cooling mechanism 400 to provide a power source for the movement of the film. The cooling cylinder is mainly composed of a double-shell structure, a spiral baffle, and a cooling medium circulation system. A single set of spiral baffle channels is set between the inner and outer shells. Cooling water enters from one end, circulates in a single path, and then exits. After the high-temperature PVC film comes into contact with the surface of the cooling cylinder, the heat is transferred to the internal circulating cooling medium through the metal shell.

[0033] In this device, the air-cooling mechanism 400 only adjusts the overall airflow direction of the air outlet and the opening and closing size of the air outlet, without changing the internal structure of the air-blowing assembly 420. Therefore, it will not affect the normal use of the air-blowing assembly 420. At the same time, since this device only adjusts the angle of the air-blowing part, it will not change the overall installation position and usage method of the air-cooling mechanism 400, and will not affect other processes in PVC film processing. Therefore, this device will not affect the overall processing procedures of PVC film.

[0034] In some embodiments, such as Figure 4 , Figure 5 as well as Figure 6As shown, in a preferred embodiment of this utility model, the adjusting component 430 is disposed between two windshield baffles 422. One end of each windshield baffle 422 has a groove. The adjusting component 430 includes a slider 432 slidably connected to the two grooves. A threaded block 4321 is rotatably connected to the end of the slider 432 away from the windshield baffle 422. A connecting plate 431 is disposed between the two threaded blocks 4321. The two threaded blocks 4321 are slidably connected to the inner wall of the connecting plate 431. Two threaded rods 433 are rotatably connected inside the connecting plate 431. The two threaded rods 433 are arranged opposite each other. The threaded block 4321 is disposed on the surface of the threaded rod 433, and one end of the threaded rod 433 is rotatably connected to the connecting plate 431. The inner wall of the connecting plate 431 is fixedly connected to the other end of the connecting plate 431. Two first bevel gears 434 are located at the near ends of two threaded rods 433. A second bevel gear 435 is located between the two first bevel gears 434. Both first bevel gears 434 mesh with the second bevel gear 435. The bottom end of the second bevel gear 435 is rotatably connected to the inner wall of the connecting plate 431. The bottom end of the second bevel gear 435 passes through the connecting plate 431 and is fixedly connected to a fixing block. The cross-section of the fixing block is a regular hexagon. The end of the blower shell 421 away from the adjusting component 430 passes through the base 100 and is fixedly connected to a worm gear 425. A worm 426 is rotatably connected to the surface of the base 100. The worm 426 meshes with the worm gear 425.

[0035] In this embodiment, the worm gear 426 is rotatably connected to the side of the blower housing 421. At the same time, a transmission rod is fixedly connected to one end of the worm gear 426, and a rotating handle is fixedly connected to one end of the transmission rod. By rotating the worm gear 426 through the rotating handle and the transmission rod, the worm wheel 425 can be driven to rotate, thereby rotating the entire blower housing 421 to adjust the blowing angle.

[0036] Working principle: Before cooling the PVC film, the tilt angle of the blower assembly 420 and the opening size of the blower shell 421 are adjusted according to the parameters of different films through the adjustment mechanism and the worm gear 425 and worm 426. By rotating the worm gear 426, the turbine is driven to rotate, and the worm gear 425 rotates, which drives the blower shell 421 to rotate as a whole, adjusting the air outlet to the most suitable tilt angle for the film. Then, the second bevel gear 435 is rotated by the fixed block, which drives the two first bevel gears 434 to rotate and simultaneously drives the two threaded rods 433 to rotate, so that the two threaded blocks 4321 drive the slider 432 to move relative to each other on the surface of the two threaded rods 433. At the same time, the opening size of the two windproof baffles 422 is adjusted by manually raising and lowering the connecting plate 431 to achieve the effect of controlling the air volume. After completing the above operations, the air pump 424 is started to inject gas into the air nozzle 423 and blow it out from the blower shell 421 to cool the upper and lower surfaces of the film.

[0037] Before starting the device, the film needs to be arranged in the device. The PVC film needs to be conveyed by the conveying mechanism 200 and pre-cooled by the water cooling mechanism 300, and then conveyed by the conveying component 410 and passed through the air cooling mechanism 400.

[0038] It should be noted that the air pump 424, the first bevel gear 434, the second bevel gear 435, and the threaded rod 433 mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the air pump 424 can be powered by the built-in power supply or by the mains power. The specific power supply method can be selected according to the situation, which will not be elaborated here.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cooling device for PVC film production, comprising a base (100) and a conveying mechanism (200) and a water cooling mechanism (300) installed inside the base (100), characterized in that: The air-cooling mechanism (400) includes a conveying component (410) and two blowing components (420) disposed inside the base (100). The two blowing components (420) are disposed opposite to each other between the conveying component (410). The blowing components (420) are inclined to the direction of movement of the film. An adjustment component (430) is disposed inside the blowing components (420).

2. The cooling device for PVC film production according to claim 1, characterized in that, The blower assembly (420) includes a blower housing (421) rotatably connected to the inner wall of the base (100). The inner wall of the blower housing (421) is rotatably connected to two wind shields (422), which are arranged opposite to each other.

3. The cooling device for PVC film production according to claim 2, characterized in that, The blower housing (421) has multiple air nozzles (423) installed on its inner bottom wall. The blower housing (421) has an air pipe installed on its inner wall. An air pump (424) is fixedly connected to the side of the base (100). The multiple air nozzles (423) are connected to the air pump (424) through the air pipe.

4. The cooling device for PVC film production according to claim 1, characterized in that, The adjustment component (430) is disposed between two windshields (422), one end of which is provided with a sliding groove, and the adjustment component (430) includes sliders (432) that are slidably connected to the two sliding grooves respectively.

5. The cooling device for PVC film production according to claim 4, characterized in that, The slider (432) is rotatably connected to a threaded block (4321) at the end away from the windshield (422). A connecting plate (431) is provided between the two threaded blocks (4321). The two threaded blocks (4321) are slidably connected to the inner wall of the connecting plate (431). Two threaded rods (433) are rotatably connected inside the connecting plate (431). The two threaded rods (433) are arranged opposite to each other.

6. The cooling device for PVC film production according to claim 5, characterized in that, The threaded block (4321) is disposed on the surface of the threaded rod (433). One end of the threaded rod (433) is rotatably connected to the inner wall of the connecting plate (431), and the other end is fixedly connected to a first bevel gear (434). Two first bevel gears (434) are disposed at the near ends of the two threaded rods (433).

7. The cooling device for PVC film production according to claim 6, characterized in that, A second bevel gear (435) is provided between the two first bevel gears (434). Both first bevel gears (434) mesh with the second bevel gear (435). The bottom end of the second bevel gear (435) is rotatably connected to the inner wall of the connecting plate (431). The bottom end of the second bevel gear (435) passes through the connecting plate (431) and is fixedly connected to a fixing block. The cross-section of the fixing block is a regular hexagon.

8. The cooling device for PVC film production according to claim 2, characterized in that, The end of the blower housing (421) away from the adjustment component (430) extends through the base (100) and is fixedly connected to a worm gear (425). A worm (426) is rotatably connected to the surface of the base (100), and the worm gear (426) meshes with the worm wheel (425).

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