An air blowing device for improving the flattening quality of calendered PVC film

Abstract

This utility model relates to the technical field of air blowing devices, and discloses an air blowing device for improving the flattening quality of calendered PVC film. The device includes an air supply pipe, with several air guide pipes fixedly connected to one side of the air supply pipe. A control valve is fixedly connected to one end of each air guide pipe, and a flat air nozzle is fixedly connected to one end of the control valve. Two adjacent flat air nozzles are in contact with each other. An adjustment mechanism is provided on the top of the control valve, including an adjustment plate disposed on the top of the control valve, and a gear is rotatably connected to the top of the adjustment plate. This air blowing device for improving the flattening quality of calendered PVC film, through the coordinated use of the flat air nozzles, control valve, and several air guide pipes, reduces the gap between the blown gases due to the contact between adjacent flat air nozzles, thereby ensuring that the airflow is uniformly directed towards the film. This avoids the problem of uneven airflow on the calendering roller surface, which leads to uncontrolled temperature changes on the calendering roller.

Description

Technical Field

[0001] This utility model relates to the field of air blowing device technology, specifically an air blowing device for improving the flattening quality of calendered PVC film. Background Technology

[0002] Most PVC calendered films are printed for advertising purposes. This type of application has high requirements for the uniformity of film thickness and flatness. Traditionally, the thickness is adjusted by bending, crossing, and stretching the calender itself. However, due to the limitations of this adjustment method, it cannot completely solve the problem.

[0003] Traditional air blowing devices employ a single-hole design with a certain interval, resulting in uneven airflow on the calendering roller surface. Consequently, the temperature change of the calendering roller becomes uncontrollable, failing to reach the required adjustment state and making it impossible to stably adjust the thickness of the calendered film and make it uniform. Therefore, those skilled in the art have provided an air blowing device to improve the flattening quality of calendered PVC film, thereby solving the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an air blowing device for improving the flattening quality of calendered PVC film, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An air blowing device for improving the flattening quality of calendered PVC film includes an air supply pipe, a plurality of air guide pipes fixedly connected to one side of the air supply pipe, a control valve fixedly connected to one end of the air guide pipe, a flat air nozzle fixedly connected to one end of the control valve, two adjacent flat air nozzles contacting each other, and an adjustment mechanism provided on the top of the control valve.

[0006] As a further embodiment of this utility model: the adjustment mechanism includes an adjustment plate disposed on the top of the control valve, a gear is rotatably connected to the top of the adjustment plate, a polygonal hole is opened on the top of the gear, one end of the polygonal hole passes through the gear and extends to the bottom of the adjustment plate, a polygonal block that cooperates with the polygonal hole is fixedly connected to the surface of the control valve stem, and a toothed plate is slidably connected to the top of the adjustment plate, the toothed plate meshing with the gear.

[0007] As a further embodiment of this utility model: a support rod is fixedly connected to the bottom of the control valve, a fixing plate is fixedly connected to the bottom of the support rod, a telescopic rod is fixedly connected to the top of the support rod, and the telescopic end of the telescopic rod is fixedly connected to the bottom of the adjusting plate.

[0008] As a further embodiment of this utility model: a slider is fixedly connected to the bottom of the toothed plate, and a groove for cooperating with the slider is opened on the top of the adjusting plate, and the surface of the slider is slidably connected to the inner wall of the groove.

[0009] As a further embodiment of this utility model: the inner cavity of the fixing plate is threadedly connected to a threaded rod, the surface of the threaded rod is rotatably connected to the inner wall of the adjusting plate through a bearing, and a knob is fixedly connected to one end of the threaded rod.

[0010] As a further embodiment of this utility model: one end of the flat air nozzle is provided with several air holes, which are connected to the air supply pipe through the flat air nozzle, the control valve, and the air guide pipe. The width of the flat air nozzle is 3cm-10cm.

[0011] As a further embodiment of this utility model: an elastic block is fixedly connected to the bottom of the gear, and a groove for cooperating with the elastic block is opened at the bottom of the adjusting plate, and the elastic block is semi-circular.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a combination of flat air nozzles, control valves, and several air guide pipes. Because two adjacent flat air nozzles are in contact with each other, the gap between the blown gas is reduced, thereby ensuring that the airflow is blown evenly onto the film and avoiding the problem of uneven airflow on the calender surface, which would lead to uncontrolled temperature changes in the calender.

[0013] 2. By setting an adjustment mechanism, this utility model allows the gear plate to be moved when the polygonal block is stuck in the polygonal hole of the gear, thereby rotating multiple gears synchronously and achieving the effect of adjusting multiple control valves. When the polygonal block is dislodged from the polygonal hole of the gear, the control valve can be controlled individually, thus achieving the effect of controlling multiple control valves individually or as a whole. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an air blowing device for improving the flattening quality of calendered PVC film. Figure 2 This is a schematic diagram of the flat nozzle and control valve in an air blowing device for improving the flattening quality of calendered PVC film. Figure 3 This is a schematic diagram of the adjusting plate, fixing plate, and control valve in an air blowing device for improving the flattening quality of calendered PVC film. Figure 4 In an air blowing device for improving the flattening quality of calendered PVC film Figure 3 A magnified view of a section at point A in the middle; Figure 5An exploded view of gears, polygonal blocks, and toothed plates in an air blowing device for improving the flattening quality of calendered PVC film; Figure 6 In an air blowing device for improving the flattening quality of calendered PVC film Figure 5 A magnified view of a section at point B in the middle.

[0015] In the diagram: 1. Air supply pipe; 2. Adjustment mechanism; 201. Adjustment plate; 202. Gear; 203. Polygonal hole; 204. Polygonal block; 205. Gear plate; 3. Air guide pipe; 4. Control valve; 5. Flat air nozzle; 6. Support rod; 7. Fixing plate; 8. Telescopic rod; 9. Slider; 10. Slide groove; 11. Threaded rod; 12. Knob; 13. Air hole; 14. Elastic block; 15. Groove. Detailed Implementation

[0016] Please see Figure 1-6 An air blowing device for improving the flattening quality of calendered PVC film includes an air supply pipe 1, a plurality of air guide pipes 3 fixedly connected to one side of the air supply pipe 1, a control valve 4 fixedly connected to one end of the air guide pipe 3, and a flat air nozzle 5 fixedly connected to one end of the control valve 4. Two adjacent flat air nozzles 5 are in contact with each other. An adjustment mechanism 2 is provided on the top of the control valve 4. Because two adjacent flat air nozzles 5 are in contact with each other, the gap between the blown gas is reduced, thereby ensuring that the airflow is blown evenly onto the film and avoiding the problem of uneven airflow on the calendering wheel surface, which leads to uncontrolled temperature changes of the calendering wheel.

[0017] Specifically, the adjustment mechanism 2 includes an adjustment plate 201 disposed on the top of the control valve 4. A gear 202 is rotatably connected to the top of the adjustment plate 201. A polygonal hole 203 is opened on the top of the gear 202. One end of the polygonal hole 203 passes through the gear 202 and extends to the bottom of the adjustment plate 201. A polygonal block 204 that cooperates with the polygonal hole 203 is fixedly connected to the surface of the valve stem of the control valve 4. A toothed plate 205 is slidably connected to the top of the adjustment plate 201. The toothed plate 205 meshes with the gear 202. By setting the adjustment mechanism 2, when the polygonal block 204 is stuck in the polygonal hole 203 of the gear 202, the toothed plate 205 can be moved, thereby rotating multiple gears 202 synchronously, achieving the effect of adjusting multiple control valves 4. When the polygonal block 204 is disengaged from the polygonal hole 203 of the gear 202, the control valve 4 can be controlled individually, thereby achieving the effect of controlling multiple control valves 4 individually or as a whole.

[0018] Through the above technical solution, air is sequentially introduced into the air guide pipe 3, control valve 4, and flat air nozzle 5 through the air supply pipe 1, and discharged through the flat air nozzle 5. Since two adjacent flat air nozzles 5 are in contact with each other, the gap between the blown air is reduced, thereby ensuring that the airflow is evenly blown onto the diaphragm. When the adjusting plate 201 is moved downward, so that the polygonal block 204 is stuck in the polygonal hole 203 of the gear 202, the gear plate 205 is moved, thereby rotating multiple gears 202 synchronously, achieving the effect of adjusting multiple control valves 4. When the adjusting plate 201 is moved upward, so that the polygonal block 204 is disengaged from the polygonal hole 203 of the gear 202, the control valve 4 can be controlled individually, thereby achieving the effect of controlling multiple control valves 4 individually or as a whole. It should be noted that the control valve 4 is a fixed ball valve. When the valve stem of the fixed ball valve is rotated, the valve stem will not move up and down.

[0019] Specifically, a support rod 6 is fixedly connected to the bottom of the control valve 4, a fixing plate 7 is fixedly connected to the bottom of the support rod 6, and a telescopic rod 8 is fixedly connected to the top of the support rod 6. The telescopic end of the telescopic rod 8 is fixedly connected to the bottom of the adjusting plate 201.

[0020] Through the above technical solution, by setting up the support rod 6, the fixed plate 7 and the telescopic rod 8 in cooperation, the support rod 6 positions the fixed plate 7. It should be noted that the support rod 6 and the surface of the control valve 4 can be connected by welding or bonding. When the adjustment plate 201 is moved, the telescopic rod 8 can guide the adjustment plate 201 to prevent the adjustment plate 201 from shifting.

[0021] Specifically, a slider 9 is fixedly connected to the bottom of the toothed plate 205, and a groove 10 is provided on the top of the adjusting plate 201 to cooperate with the slider 9. The surface of the slider 9 is slidably connected to the inner wall of the groove 10.

[0022] Through the above technical solution, by setting the slider 9 and the slide groove 10 to work together, when the toothed plate 205 is moved, the slider 9 will move in the inner cavity of the slide groove 10, thereby achieving the effect of guiding the toothed plate 205 and preventing the toothed plate 205 from deviating. It should be noted that a driving structure can be set on one side of the toothed plate 205 to drive the toothed plate 205 to move. This is a conventional setting and will not be elaborated on further.

[0023] Specifically, the inner cavity of the fixed plate 7 is threadedly connected to a threaded rod 11. The surface of the threaded rod 11 is rotatably connected to the inner wall of the adjusting plate 201 through a bearing. A knob 12 is fixedly connected to one end of the threaded rod 11.

[0024] Through the above technical solution, by setting the threaded rod 11 and the knob 12 to work together, when the adjusting plate 201 is moved up and down, the knob 12 is rotated, and the knob 12 drives the threaded rod 11 to rotate. The threaded rod 11 is rotatably connected to the adjusting plate 201, and the surface of the threaded rod 11 is threadedly connected to the inner wall of the fixed plate 7, thereby achieving the effect of driving the adjusting plate 201 to move.

[0025] Specifically, one end of the flat nozzle 5 has several air holes 13. The air holes 13 are connected to the air supply pipe 1 through the flat nozzle 5, the control valve 4, and the air guide pipe 3. The width of the flat nozzle 5 is 3cm-10cm.

[0026] By using the above technical solution, and by setting up several air holes 13, the air can be evenly dispersed, thereby ensuring that the airflow is evenly blown onto the film.

[0027] Specifically, the bottom of the gear 202 is fixedly connected to an elastic block 14, and the bottom of the adjusting plate 201 is provided with a groove 15 that cooperates with the elastic block 14. The elastic block 14 is semi-circular.

[0028] Through the above technical solution, by setting up the elastic block 14 and the groove 15 in cooperation, wherein there are several grooves 15, when the gear 202 is rotated, the gear 202 will drive the elastic block 14 to move in a ring. When the elastic block 14 is stuck in the groove 15, the continued rotation will feel obvious jamming, thus making it easy to judge the angle of rotation of the gear 202 each time.

[0029] The working principle of this utility model is as follows: Air is sequentially introduced into the air guide pipe 3, control valve 4, and flat air nozzle 5 through the air supply pipe 1, and discharged through the flat air nozzle 5, thus blowing towards the calender wheel surface. Since two adjacent flat air nozzles 5 are in contact with each other, the gap between the blown gas is reduced, thereby ensuring that the airflow is evenly blown onto the film. When it is necessary to adjust multiple control valves 4 synchronously, the threaded rod 11 is rotated, thereby moving the adjusting plate 201 downward, so that the polygonal block 204 is stuck in the polygonal hole 203 of the gear 202. At this time, the gear plate 205 is moved, thereby rotating multiple gears 202 synchronously. The threaded rod 11 is rotated, moving the adjusting plate 201 upward, so that the polygonal block 204 is disengaged from the polygonal hole 203 of the gear 202, thereby achieving the effect of individual or overall control of multiple control valves 4.

[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. An air blowing device for improving the flattening quality of calendered PVC film, comprising an air supply pipe (1), characterized in that: A plurality of air guide pipes (3) are fixedly connected to one side of the air supply pipe (1), and a control valve (4) is fixedly connected to one end of the air guide pipe (3). A flat air nozzle (5) is fixedly connected to one end of the control valve (4). Two adjacent flat air nozzles (5) are in contact with each other. An adjustment mechanism (2) is provided on the top of the control valve (4).

2. The air blowing device for improving the flattening quality of calendered PVC film according to claim 1, characterized in that: The adjustment mechanism (2) includes an adjustment plate (201) disposed on the top of the control valve (4). A gear (202) is rotatably connected to the top of the adjustment plate (201). A polygonal hole (203) is opened on the top of the gear (202). One end of the polygonal hole (203) passes through the gear (202) and extends to the bottom of the adjustment plate (201). A polygonal block (204) that cooperates with the polygonal hole (203) is fixedly connected to the surface of the valve stem of the control valve (4). A toothed plate (205) is slidably connected to the top of the adjustment plate (201). The toothed plate (205) meshes with the gear (202).

3. The air blowing device for improving the flattening quality of calendered PVC film according to claim 1, characterized in that: The bottom of the control valve (4) is fixedly connected to a support rod (6), the bottom of the support rod (6) is fixedly connected to a fixing plate (7), the top of the support rod (6) is fixedly connected to a telescopic rod (8), and the telescopic end of the telescopic rod (8) is fixedly connected to the bottom of the adjusting plate (201).

4. The air blowing device for improving the flattening quality of calendered PVC film according to claim 2, characterized in that: The bottom of the toothed plate (205) is fixedly connected to a slider (9), and the top of the adjusting plate (201) is provided with a groove (10) that works with the slider (9). The surface of the slider (9) is slidably connected to the inner wall of the groove (10).

5. The air blowing device for improving the flattening quality of calendered PVC film according to claim 3, characterized in that: The inner cavity of the fixed plate (7) is threaded with a threaded rod (11). The surface of the threaded rod (11) is rotatably connected to the inner wall of the adjusting plate (201) through a bearing. A knob (12) is fixedly connected to one end of the threaded rod (11).

6. The air blowing device for improving the flattening quality of calendered PVC film according to claim 1, characterized in that: The flat nozzle (5) has several air holes (13) at one end. The air holes (13) are connected to the air supply pipe (1) through the flat nozzle (5), the control valve (4), and the air guide pipe (3). The width of the flat nozzle (5) is 3cm-10cm.

7. The air blowing device for improving the flattening quality of calendered PVC film according to claim 2, characterized in that: The bottom of the gear (202) is fixedly connected to an elastic block (14), and the bottom of the adjusting plate (201) is provided with a groove (15) that cooperates with the elastic block (14). The elastic block (14) is semi-circular.

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