A film laminating machine and a film laminating method thereof

Abstract

The application is suitable for the technical field of laminating machine, and provides a laminating machine, which comprises a machine body, a film placing roller, a winding assembly, a guide roller and a main roller are respectively installed on the bottom wall of the machine body, a bottom shell is arranged on the bottom wall of the machine body, the bottom shell is arranged on the side of the main roller away from the guide roller, a supporting frame is arranged on the bottom shell, the top of the supporting frame is in U shape, a first rotating shaft is rotatably connected between the two vertical plates of the top of the supporting frame, an extrusion roller is fixedly arranged on the outer surface of the first rotating shaft, a spraying mechanism is arranged in the machine body, the nozzle of the spraying mechanism is arranged downward and located between the extrusion roller and the main roller, the device is provided with a static scraper, which can automatically scrape off the spraying raw materials on the surface of the extrusion roller during the laminating process, ensures the cleanliness of the surface of the extrusion roller, and avoids that the extrusion effect of the extrusion roller on the pp film is affected by the adhesion of too much spraying raw materials on the surface of the extrusion roller, so that the use effect of the laminating machine is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of film coating machines, and more particularly, it relates to a film coating machine and a film coating method thereof. BACKGROUND

[0002] The film coating machine is a kind of extrusion molding machine, which has the advantages of high automation, simple operation, high production speed, uniform coating thickness, high adhesion, flat winding, environmental protection, no pollution, labor saving and raw material cost saving.

[0003] For example, the prior art: CN217165122U discloses a film coating machine, which adjusts the horizontal and vertical directions of the extrusion roller to adapt to the change of film thickness through the arrangement of horizontal hydraulic cylinders and longitudinal hydraulic cylinders; the temperature of the water in the water tank can be known through the inductor, and then the temperature of the roller body is adjusted through the heating element. The spray head is inclined to the extrusion roller, and the temperature of the sprayed material during extrusion can be adjusted by the extrusion roller.

[0004] However, the prior art may have the following problems during use: in the prior art, the film passes between the main roller and the extrusion roller, and the spraying device sprays the raw material on the pp film, so that part of the sprayed raw material adheres to the surface of the extrusion roller during the extrusion of the film by the extrusion roller. In the prior art, the main roller and the extrusion roller are water-cooled rollers, so that the film coating material adhering to the surface of the extrusion roller is solidified under the action of the cold air in the extrusion roller, thereby forming a bump on the surface of the extrusion roller. Since the film is rotated during conveying, the bump on the surface of the extrusion roller will extrude the film, affecting the spraying effect on the surface of the film, and even causing damage to the film, thereby affecting the use effect of the film coating machine. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application aims to provide a film coating machine and a film coating method thereof which can ensure the use effect of the film coating machine.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] A kind of film laminating machine, including machine body, bottom wall of machine body is equipped with film placing roller, winding assembly, guide roller and main roller respectively, bottom wall of the machine body is equipped with bottom shell, bottom shell is located in the side of main roller away from guide roller, bottom shell is equipped with support frame, the top of support frame is U-shaped, first rotating shaft is rotatably connected between the two vertical plates of the top of support frame, extrusion roller is fixedly sleeved on the outer surface of first rotating shaft, spraying mechanism is arranged in the machine body, the nozzle of spraying mechanism is arranged downward and is located between extrusion roller and main roller, stationary scraper is fixedly connected on the horizontal plate of support frame, the top of stationary scraper is obtuse triangle, the tip of stationary scraper is in contact with the lower surface of extrusion roller, sliding slot is formed in the side of support frame, the upper surface of horizontal plate of support frame is formed with the communication groove being communicated with sliding slot, and the communication groove is located directly below the inclined surface of stationary scraper, drawer is slidably connected in sliding slot, one side of drawer extends out of the outer surface of support frame.

[0008] The application further provides that the film placing roller, winding assembly, guide roller and main roller are horizontally arranged, the winding assembly and guide roller are arranged between the film placing roller and main roller, the guide roller is arranged on the side close to the main roller, and the winding assembly is arranged on the side close to the film placing roller.

[0009] The application further provides that the vertical plate of the support frame is rotatably connected with a ball screw, the ball screw is located directly below the extrusion roller, a ball nut is threadedly sleeved on the ball screw, the side of the ball nut close to the stationary scraper is fixedly connected with a movable scraper, and the movable scraper is in contact with and slides on the inclined surface of the stationary scraper.

[0010] The application further provides that the horizontal plate of the support frame is fixedly connected with a second guide rail, the communication groove is located between the second guide rail and the stationary scraper, the lower surface of the ball nut is fixedly connected with a second guide rail connector, and the ball nut is slidably connected with the second guide rail through the second guide rail connector.

[0011] The application further provides that the outer surface of the first rotating shaft is fixedly sleeved with a belt pulley, the end of the ball screw close to the belt pulley is fixedly connected with a second rotating shaft, the other end of the second rotating shaft is rotatably connected with the vertical plate of the support frame, the outer surface of the second rotating shaft is also fixedly sleeved with a belt pulley, and the two belt pulleys are transmissionally connected with a transmission belt.

[0012] The bottom wall of the machine body is fixedly connected with two fixed plates, the bottom shell is located between the two fixed plates, a threaded rod is rotationally connected between the two fixed plates, the bottom of the bottom shell is threadedly sleeved on the threaded rod, a second motor is fixedly connected to the bottom wall of the machine body, one end of the threaded rod close to the second motor rotationally penetrates out of the fixed plate and is fixedly connected with the output shaft of the second motor, a first guide rail is fixedly connected to the bottom wall of the machine body and located between the two fixed plates, the lower surface of the bottom shell is fixedly connected with a first guide rail connector, and the bottom shell is slidably connected with the first guide rail through the first guide rail connector.

[0013] The bottom shell is hollow, the lower end of the support frame slidably penetrates into the bottom shell, and a pneumatic cylinder is fixedly connected to the bottom wall of the bottom shell, with the telescopic end of the pneumatic cylinder being fixedly connected with the bottom of the support frame.

[0014] The application further provides a coating method of the coating machine, and the specific operation steps are as follows: S1, the PP film on the film placing roller is first wound between the main roller and the extrusion roller, then passes through the bottom of the guide roller, and is fixedly installed on the winding roller;

[0015] S2, the start of the first motor can synchronously drive the winding roller to rotate, so that the pp film can be pulled, at the same time, the spraying mechanism sprays raw materials to the surface of the pp film, the extrusion roller can uniformly attach the raw materials to the surface of the pp film, and the water cooling assembly in the extrusion roller and the main roller operates to cool and solidify the raw materials sprayed on the surface of the pp film;

[0016] S3, the static scraper can scrape off the sprayed raw materials on the surface of the extrusion roller during the conveying process of the pp film, at the same time, the extrusion roller can synchronously drive the first rotating shaft to rotate, so that the second rotating shaft can synchronously rotate with the first rotating shaft under the transmission of the two belt pulleys and the transmission belt, so as to drive the ball screw to rotate, and the ball nut reciprocally moves in the horizontal position under the transmission of the ball screw, so that the movable scraper reciprocally moves on the inclined surface of the static scraper, and the movable scraper can scrape off the raw materials adhered to the inclined surface of the static scraper.

[0017] The application has the advantages that: the static scraper is arranged, which can automatically scrape off the sprayed raw materials on the surface of the extrusion roller during the coating process, guarantees the cleanliness of the surface of the extrusion roller, avoids the influence of too much sprayed raw materials adhered to the surface of the extrusion roller on the extrusion effect of the extrusion roller as much as possible, guarantees the use effect of the coating machine, and the movable scraper is arranged, which can scrape off the raw materials adhered to the inclined surface of the static scraper, further guarantees the cleanliness of the inclined surface of the static scraper, and avoids the influence of too much raw materials adhered to the inclined surface of the static scraper on the scraping effect of the surface of the extrusion roller as much as possible. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a main view of the internal structure of the coating machine.

[0019] Figure 2 Figure 4 is a side view plan of the winding roller of the present application;

[0020] Figure 3 Figure 5 is a side view plan of the support frame of the present application;

[0021] Figure 4 Figure 6 is a front view plan of the static scraper of the present application;

[0022] Figure 5 Figure 7 is a partial front view plan of the ball nut connecting structure of the present application; Figure 4

[0023] Figure 8 is a partial front view plan of the ball nut connecting structure of the present application; Figure 6

[0024] Figure 9 is a structure diagram of Example 2. Figure 7 Figure 3

[0025] Figure 8

[0026] In the figure: 1, machine body; 2, support frame; 3, film placing roller; 4, winding roller; 41, first motor; 5, guide roller; 6, main roller; 7, spraying mechanism; 8, bottom shell; 81, fixed plate; 82, second motor; 83, threaded rod; 84, first guide rail joint; 85, first guide rail; 86, air cylinder; 9, support frame; 10, extrusion roller; 11, first rotating shaft; 12, static scraper; 13, sliding groove; 14, communication groove; 15, drawer; 16, second guide rail; 17, ball nut; 18, second guide rail joint; 19, movable scraper; 20, ball screw; 21, pulley; 22, second rotating shaft; 23, transmission belt. DETAILED DESCRIPTION

[0027] Example 1

[0028] Please refer to Figures 1-7 , the present application provides the following technical solutions:

[0029] ​​​Specifically refers to a kind of film coating machine, including body 1, the bottom wall of body 1 is respectively equipped with film release roller 3, winding assembly, guide roller 5 and main roller 6, while film release roller 3, winding assembly, guide roller 5 and main roller 6 are transversely horizontally arranged, winding assembly and guide roller 5 are arranged between film release roller 3 and main roller 6, guide roller 5 is arranged on the side close to main roller 6, and winding assembly is arranged on the side close to film release roller 3, winding assembly includes two supports 2 and first motor 41, two supports 2 are fixedly installed on the bottom wall of body 1 in vertical and horizontal mode, winding roller 4 is rotatably connected between two supports 2, first motor 41 is fixedly installed on the outer side of support 2, the output end of first motor 41 is rotatably penetrated out of support 2 and fixedly connected with winding roller 4, in use, the PP film on the film release roller 3 first passes through the main roller 6, then passes through the bottom of the guide roller 5, and is fixedly installed on the winding roller 4, so that the winding roller 4 can be driven to rotate synchronously by starting the first motor 41, thereby achieving the purpose of winding the PP film.

[0030] Specifically, the bottom wall of body 1 is provided with a bottom shell 8, the bottom shell 8 is arranged on the side away from the guide roller 5 of the main roller 6, the bottom shell 8 is provided with a support frame 9, the top of the support frame 9 is U-shaped, a first rotating shaft 11 is rotatably connected between the two vertical plates at the top of the support frame 9, and an extrusion roller 10 is fixedly sleeved on the outer surface of the first rotating shaft 11, while the extrusion roller 10 and the main roller 6 are transversely horizontally arranged, the PP film passes between the main roller 6 and the extrusion roller 10, a spraying mechanism 7 is arranged in the body 1, the nozzle of the spraying mechanism 7 is downwardly arranged and located between the extrusion roller 10 and the main roller 6, so that when the PP film is conveyed between the main roller 6 and the extrusion roller 10, the spraying mechanism 7 sprays raw materials to the surface of the PP film, and the extrusion roller can uniformly attach the raw materials to the surface of the PP film, and the main roller and the extrusion roller are both water-cooled rollers, which are known technologies in the existing patent CN217165122U and will not be described in detail here, so that the raw materials on the film surface can be quickly cooled and solidified.

[0031] Specifically, the support frame 9 transverse plate is fixedly connected with a stationary scraper 12, the top of the stationary scraper 12 is an obtuse triangle, and the tip of the stationary scraper 12 is in contact with the lower surface of the extrusion roller 10, so that the stationary scraper 12 can scrape off the sprayed raw materials on the surface of the extrusion roller 10, ensuring the cleanliness of the surface of the extrusion roller 10 and avoiding the influence of the attachment of too much sprayed raw materials on the surface of the extrusion roller 10 on the extrusion effect of the extrusion roller 10 on the PP film, thereby ensuring the use effect of the film coating machine.

[0032] Specifically, the side of the support frame 9 is provided with a sliding groove 13, the upper surface of the horizontal plate of the support frame 9 is provided with a communication groove 14 in communication with the sliding groove 13, and the communication groove 14 is located directly below the inclined surface of the static scraper 12. The sliding groove 13 is slidably connected with a drawer 15, one side of the drawer 15 extends out of the outer surface of the support frame 9, so that the raw materials scraped off by the static scraper 12 can fall into the drawer 15 through the communication groove 14, which facilitates the collection of these raw materials and avoids the scraped raw materials from falling onto the support frame 9, thereby reducing the difficulty of cleaning by the staff later.

[0033] Specifically, the vertical plate of the support frame 9 is rotatably connected with a ball screw 20, the ball screw 20 is located directly below the extrusion roller 10, the ball screw 20 is threadedly sleeved with a ball nut 17, the horizontal plate of the support frame 9 is fixedly connected with a second guide rail 16, the communication groove 14 is located between the second guide rail 16 and the static scraper 12, the lower surface of the ball nut 17 is fixedly connected with a second guide rail connector 18, the ball nut 17 is slidably connected with the second guide rail 16 through the second guide rail connector 18, the side of the ball nut 17 close to the static scraper 12 is fixedly connected with a movable scraper 19, the movable scraper 19 is in contact with and slides on the inclined surface of the static scraper 12. In this way, by controlling the rotation of the ball screw 20, the ball nut 17 reciprocates horizontally under the transmission of the ball screw 20, so that the movable scraper 19 reciprocates on the inclined surface of the static scraper 12. The movable scraper 19 can scrape off the raw materials adhered to the inclined surface of the static scraper 12, further ensuring the cleanliness of the inclined surface of the static scraper 12 and avoiding the excessive raw materials adhered to the inclined surface of the static scraper 12 from affecting the scraping effect on the surface of the extrusion roller 10.

[0034] Specifically, the outer surface of the first rotating shaft 11 is fixedly sleeved with a belt pulley 21, one end of the ball screw 20 close to the belt pulley 21 is fixedly connected with a second rotating shaft 22, the other end of the second rotating shaft 22 is rotatably connected with the vertical plate of the support frame 9, the outer surface of the second rotating shaft 22 is also fixedly sleeved with a belt pulley 21, and the two belt pulleys 21 are transmissionally connected with a transmission belt 23. Therefore, when the extrusion roller 10 rotates, the first rotating shaft 11 can be driven to rotate synchronously, so that the second rotating shaft 22 can rotate synchronously with the first rotating shaft 11 under the transmission of the two belt pulleys 21 and the transmission belt 23, so as to drive the ball screw 20 to rotate. The above structure can convert the power of the extrusion roller 10 during operation and drive the movable scraper 19 to clean the inclined surface of the static scraper 12, so as to continuously clean the static scraper 12 during the operation of the film coating machine, without the need for additional electric structure to control the rotation of the ball screw 20, thereby having good environmental value.

[0035] Specifically, the bottom wall of the body 1 is fixedly connected with two fixed plates 81, the bottom shell 8 is located between the two fixed plates 81, a threaded rod 83 is rotatably connected between the two fixed plates 81, the bottom of the bottom shell 8 is threadedly sleeved on the threaded rod 83, the bottom wall of the body 1 is fixedly connected with a second motor 82, one end of the threaded rod 83 close to the second motor 82 rotatably penetrates out of the fixed plate 81 and is fixedly connected with the output shaft of the second motor 82, the bottom wall of the body 1 is fixedly connected with a first guide rail 85, the first guide rail 85 is located between the two fixed plates 81, the lower surface of the bottom shell 8 is fixedly connected with a first guide rail joint 84, and the bottom shell 8 is slidably connected with the first guide rail 85 through the first guide rail joint 84, so that the second motor 82 can synchronously drive the threaded rod 83 to rotate by starting the second motor 82, and the bottom shell 8 can be horizontally displaced in the transverse direction under the transmission of the threaded rod 83, so that the horizontal distance between the extrusion roller 10 and the main roller 6 can be adjusted, so that the change requirement of the film thickness can be adapted.

[0036] Specifically, the inside of the bottom shell 8 is hollow, the lower end of the support frame 9 slidably penetrates into the bottom shell 8, the bottom wall of the bottom shell 8 is fixedly connected with a gas cylinder 86, and the telescopic end of the gas cylinder 86 is fixedly connected with the bottom of the support frame 9, so that the vertical position of the support frame 9 can be controlled by starting the gas cylinder 86, so that the vertical distance between the extrusion roller 10 and the main roller 6 can be controlled, and the change requirement of the film thickness can be adapted.

[0037] The working principle of the film laminating machine is as follows: in the first step, the PP film on the film placing roller 3 is first wound between the main roller 6 and the extrusion roller 10, then passes through the bottom of the guide roller 5, and is fixedly installed on the winding roller 4;

[0038] In the second step, the starting of the first motor 41 can synchronously drive the winding roller 4 to rotate, so that the pp film can be pulled, the spraying mechanism 7 sprays raw materials on the surface of the pp film, the extrusion roller 10 can uniformly attach the raw materials on the surface of the pp film, and the water cooling assembly in the extrusion roller 10 and the main roller 6 operates to cool and solidify the raw materials sprayed on the surface of the pp film;

[0039] In the third step, the static scraper 12 can scrape off the sprayed raw materials on the surface of the extrusion roller 10 during the conveying process of the pp film, the extrusion roller 10 can synchronously drive the first rotating shaft 11 to rotate, so that the second rotating shaft 22 can synchronously rotate with the first rotating shaft 11 under the transmission of the two belt pulleys 21 and the transmission belt 23, so that the ball screw 20 can be rotated, the ball nut 17 can reciprocatingly move in the horizontal direction under the transmission of the ball screw 20, so that the movable scraper 19 can reciprocatingly displace on the inclined surface of the static scraper 12, and the movable scraper 19 can scrape off the raw materials adhered on the inclined surface of the static scraper 12.

[0040] The application provides another new technical scheme according to the above scheme: a coating method of a coating machine, and the specific operation steps are as follows: S1, the PP film on the film placing roller 3 first passes between the main roller 6 and the extrusion roller 10, then passes through the bottom of the guide roller 5, and is fixedly installed on the winding roller 4;

[0041] S2, the starting of the first motor 41 can synchronously drive the winding roller 4 to rotate, so that the PP film can be pulled, the spraying mechanism 7 sprays raw materials to the surface of the PP film, and the extrusion roller 10 can uniformly attach the raw materials to the surface of the PP film; the water cooling assembly in the extrusion roller 10 and the main roller 6 operates to cool and solidify the raw materials sprayed to the surface of the PP film;

[0042] S3, the static scraper 12 can scrape off the raw materials sprayed to the surface of the extrusion roller 10 in the process of conveying the PP film, and the extrusion roller 10 can synchronously drive the first rotating shaft 11 to rotate, so that the second rotating shaft 22 can synchronously rotate with the first rotating shaft 11 under the transmission of the two belt pulleys 21 and the transmission belt 23, so as to drive the ball screw 20 to rotate, the ball nut 17 reciprocally moves in the horizontal position under the transmission of the ball screw 20, so that the movable scraper 19 reciprocally moves on the inclined surface of the static scraper 12, and the movable scraper 19 can scrape off the raw materials adhered to the inclined surface of the static scraper 12.

[0043] Embodiment two

[0044] The structure and working principle of this embodiment are basically the same as those of the above-mentioned embodiment one, and the different structure is that:

[0045] As shown in Figure 8 , the film double-side edge slight bending mechanism is arranged between the guide roller 5 and the main roller 6 on the machine body 1, the film double-side edge slight bending mechanism makes the two side edges of the film passing between the guide roller 5 and the main roller 6 slightly curl downward, the slight curling can also be understood as bending, for example, the radius of the bending is 0.2-0.8 mm, and the function is to make the spraying raw materials not flow to the surface away from the film spraying in the subsequent winding process. Specifically, as shown in Figure 8 , the film double-side edge slight bending mechanism comprises a fixed gantry 30 through which the film passes, and further comprises two inclined arms 31, the two inclined arms 31 are symmetrically distributed with the width center line of the film as the center, the fixed gantry 30 is provided with a driver 32 for driving the two inclined arms 31 to stretch and contract in the inclined direction, the driver 32 is a double-rod pneumatic cylinder, and the piston rod of the driver 32 is connected with the upper end of the inclined arm 30 through a linkage structure.

[0046] The linkage structure comprises an inclined track groove 33 arranged on the fixed gantry 30, and a roller 34 arranged in the inclined track groove 33. In the embodiment, two rollers 34 are arranged in each inclined track groove 33, and the two rollers 34 are connected by a connecting frame 35, and the upper end of the inclined arm 30 is fixed on the connecting frame 35.

[0047] The piston rod of the driver 32 is hinged to the connecting frame 35 through a driving arm 36, and the piston rod of the driver 32 and the driving arm 36 are also hinged.

[0048] A bypass portion 37 is arranged at the lower end of the inclined arm 31, and the bypass portion 37 is in tangential contact with the upper surface of the film.

[0049] With the expansion of the distance between the two inclined arms 31 driven by the driver 32, the inclined arms 31 can make the two side edges of the film in the width direction to bend downward. Conversely, the bending is cancelled.

[0050] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A film laminating machine comprising a machine body (1), a film feeding roller (3), a winding assembly, a guide roller (5) and a main roller (6) are respectively installed on the bottom wall of the machine body (1), characterized in that: The bottom wall of the machine body (1) is provided with a bottom shell (8), which is arranged on the side of the main roller (6) away from the guide roller (5), and the bottom shell (8) is provided with a support frame (9), the top of the support frame (9) is in the shape of U, the first rotating shaft (11) is rotatably connected between the two vertical plates of the top of the support frame (9), the outer surface of the first rotating shaft (11) is fixedly provided with the extrusion roller (10), the machine body (1) is provided with a spraying mechanism (7), the nozzle of the spraying mechanism (7) is arranged downward and located between the extrusion roller (10) and the main roller (6), the horizontal plate of the support frame (9) is fixedly connected with a stationary scraper (12), the top of the stationary scraper (12) is in the shape of an obtuse triangle, the tip of the stationary scraper (12) is in contact with the lower surface of the extrusion roller (10), the side surface of the support frame (9) is provided with a sliding groove (13), the upper surface of the horizontal plate of the support frame (9) is provided with a communication groove (14) in communication with the sliding groove (13), and the communication groove (14) is located directly below the inclined surface of the stationary scraper (12), and the drawer (15) is slidably connected in the sliding groove (13), one side of the drawer (15) extends out of the outer surface of the support frame (9); The machine body (1) is provided with a film double-side edge micro-bending mechanism between the guide roller (5) and the main roller (6), which makes the two side edges of the film passing between the guide roller (5) and the main roller (6) micro-bend downward; The film double-side edge micro-bending mechanism comprises a fixed gantry (30), and the film passes through the fixed gantry (30), and the film double-side edge micro-bending mechanism further comprises two inclined touch arms (31), which are symmetrically distributed with the width center line of the film as the center, and the fixed gantry (30) is provided with a drive (32) for driving the two inclined touch arms (31) to stretch and contract in the inclined direction thereof, the drive (32) is a double-rod air cylinder, and the piston rod of the drive (32) is connected with the upper end of the inclined touch arm (31) through a linkage structure; the linkage structure comprises an inclined track groove (33) arranged on the fixed gantry (30), and a roller (34) is arranged in the inclined track groove (33), two rollers (34) are arranged in each inclined track groove (33), the two rollers (34) are connected through a connecting frame (35), and the upper end of the inclined touch arm (31) is fixed on the connecting frame (35); the piston rod of the drive (32) is hinged with the connecting frame (35) through a driving arm (36), and the piston rod of the drive (32) and the driving arm (36) are also hinged; a detour portion (37) is arranged at the lower end of the inclined touch arm (31), and the detour portion (37) is in tangential contact with the upper surface of the film.

2. The curtain coater of claim 1, wherein: The film releasing roller (3), the winding assembly, the guide roller (5) and the main roller (6) are horizontally arranged, the winding assembly and the guide roller (5) are arranged between the film releasing roller (3) and the main roller (6), the guide roller (5) is arranged on the side close to the main roller (6), the winding assembly is arranged on the side close to the film releasing roller (3), the winding assembly comprises two supports (2) and a first motor (41), the two supports (2) are fixedly installed on the bottom wall of the machine body (1) in a vertical and horizontal manner, a winding roller (4) is rotatably connected between the two supports (2), the first motor (41) is fixedly installed on the outer side of the support (2), and an output end of the first motor (41) rotatably penetrates out of the support (2) and is fixedly connected with the winding roller (4).

3. A curtain coater according to claim 2, characterized in that: The vertical plate of the support frame (9) is rotatably connected with a ball screw (20), the ball screw (20) is located directly below the extrusion roller (10), a ball nut (17) is threadedly sleeved on the ball screw (20), the side, close to the stationary scraper (12), of the ball nut (17) is fixedly connected with a movable scraper (19), and the movable scraper (19) is in contact with and slides on the inclined surface of the stationary scraper (12).

4. A curtain coater according to claim 3, characterized in that: The horizontal plate of the support frame (9) is fixedly connected with a second guide rail (16), the communication groove (14) is located between the second guide rail (16) and the stationary scraper (12), the lower surface of the ball nut (17) is fixedly connected with a second guide rail connector (18), and the ball nut (17) is slidably connected with the second guide rail (16) through the second guide rail connector (18).

5. A curtain coater according to claim 4, characterized in that: The outer surface of the first rotating shaft (11) is fixedly sleeved with a belt pulley (21), one end of the ball screw (20), close to the belt pulley (21), is fixedly connected with a second rotating shaft (22), the other end of the second rotating shaft (22) is rotatably connected with the vertical plate of the support frame (9), the outer surface of the second rotating shaft (22) is also fixedly sleeved with a belt pulley (21), and the two belt pulleys (21) are transmissionally connected with a transmission belt (23).

6. A curtain coater according to claim 5, characterized in that: The bottom wall of the machine body (1) is fixedly connected with two fixed plates (81), the bottom shell (8) is located between the two fixed plates (81), a threaded rod (83) is rotatably connected between the two fixed plates (81), the bottom of the bottom shell (8) is threadedly sleeved on the threaded rod (83), a second motor (82) is fixedly connected to the bottom wall of the machine body (1), one end of the threaded rod (83), close to the second motor (82), rotatably penetrates out of the fixed plate (81) and is fixedly connected with the output shaft of the second motor (82).

7. A curtain coater according to claim 6, characterized in that: The bottom wall of the machine body (1) is fixedly connected with a first guide rail (85), the first guide rail (85) is located between the two fixed plates (81), the lower surface of the bottom shell (8) is fixedly connected with a first guide rail connector (84), and the bottom shell (8) is slidably connected with the first guide rail (85) through the first guide rail connector (84).

8. A curtain coater according to claim 7, characterized in that: The bottom shell (8) is hollow, the lower end of the support frame (9) slidably penetrates into the bottom shell (8), a gas cylinder (86) is fixedly connected to the bottom wall of the bottom shell (8), and the telescopic end of the gas cylinder (86) is fixedly connected with the bottom of the support frame (9).

9. The method of claim 8, wherein: The operation steps include the following: S1, the PP film on the film placing roller (3) first passes between the main roller (6) and the extrusion roller (10), then passes through the bottom of the guide roller (5), and is fixedly installed on the winding roller (4); S2, the starting of the first motor (41) can synchronously drive the winding roller (4) to rotate, so that the pp film can be pulled, at the same time, the spraying mechanism (7) sprays raw materials to the surface of the pp film, the extrusion roller (10) can uniformly attach the raw materials on the surface of the pp film, the water cooling assembly in the extrusion roller (10) and the main roller (6) operates to cool and solidify the raw materials sprayed on the surface of the pp film; S3, the static scraper (12) can scrape off the sprayed raw materials on the surface of the extrusion roller (10) during the conveying process of the extrusion roller (10), at the same time, the extrusion roller (10) can synchronously drive the first rotating shaft (11) to rotate, so that the second rotating shaft (22) can synchronously rotate with the first rotating shaft (11) under the transmission of the two belt pulleys (21) and the transmission belt (23), so as to drive the ball screw (20) to rotate, the ball nut (17) reciprocates horizontally under the transmission of the ball screw (20), so that the movable scraper (19) reciprocates on the inclined surface of the static scraper (12), and the movable scraper (19) can scrape off the raw materials adhered on the inclined surface of the static scraper (12).

Images