A polycarbonate film flow coating device

Abstract

The application relates to the technical field of polycarbonate film production, in particular to a polycarbonate film flow coating device. The existing flow coating device is inconvenient for limiting a winding drum, the winding drum is prone to moving during winding, the winding quality is affected, and bulging is prone to occurring during polycarbonate film cooling; after coating is completed, the tail end of the polycarbonate film is prone to being damaged and polluted due to the lack of support. The polycarbonate film flow coating device comprises a base plate and the like; a vertical plate is fixedly connected to the base plate; a winding motor and a rotating motor are fixedly connected to one side of the vertical plate; a forming mechanism is arranged on one side of the vertical plate; and the forming mechanism is connected with the winding motor and the rotating motor. The winding drum is not prone to moving during winding after being limited, and the winding quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polycarbonate film production, and particularly relates to a polycarbonate film casting coating device. BACKGROUND

[0002] The polycarbonate film is also called PC film, which is a very important material in modern society production and is widely used in various industries. In the polycarbonate film production process, the polycarbonate film is usually processed by the method of casting coating. The main steps are that the polycarbonate particles are extruded into a film shape after being heated and melted, and then the polycarbonate film is formed by cooling.

[0003] However, the existing device is not convenient for limiting the winding drum, so that the winding drum is easy to move during winding, which affects the winding quality, and the polycarbonate film is easy to bulge during cooling. After coating, the tail end of the polycarbonate film is easy to be contaminated due to lack of support. SUMMARY

[0004] In order to overcome the shortcomings in the background art, the present application provides a polycarbonate film casting coating device which is convenient for limiting the winding drum, improves the winding quality, and does not easily cause the polycarbonate film to bulge during cooling, and can support the tail end of the polycarbonate film without causing pollution.

[0005] The technical scheme of the present application is as follows: a polycarbonate film casting coating device, comprising a bottom plate, a vertical plate fixedly connected to the bottom plate, a winding motor and a rotating motor fixedly connected to one side of the vertical plate, a forming mechanism arranged on one side of the vertical plate, the forming mechanism being connected with the winding motor and the rotating motor, the forming mechanism being used for heating and extruding polycarbonate fluid, so that the polycarbonate fluid is cooled to form a film and then is wound, and a limiting mechanism arranged on the forming mechanism and used for limiting the winding drum to maintain the stability of winding.

[0006] Further, the forming mechanism comprises a winding roller rotatably connected to one side of the vertical plate, the winding roller being connected with a power shaft of the winding motor, one end of the winding roller away from the vertical plate being provided with a groove, one side of the winding roller close to the winding motor being provided with a convex edge, the vertical plate being fixedly connected with a heating extruder on the side away from the winding roller, a hopper being fixedly connected to an inlet of the heating extruder, a strip-shaped extrusion outlet being arranged on the lower part of the heating extruder, a cooling roller being rotatably connected to the side of the vertical plate close to the heating extruder, the cooling roller being connected with an output shaft of the rotating motor, an inclined shovel plate being fixedly connected to the bottom plate, the inclined shovel plate being in contact with one side of the cooling roller, an arc guide plate being fixedly connected to the side of the inclined shovel plate away from the cooling roller, a support rod being fixedly connected to the vertical plate, and a guide roller being rotatably connected to the support rod.

[0007] Further, the limiting mechanism comprises a guide column fixedly connected in a groove at one end of the winding roller, two rotating lugs are rotatably connected to the guide column, the rotating lugs are structured with one side as a convex surface and the other side as a flat surface, a baffle is slidably connected to the guide column, an extrusion spring is connected between the baffle and the winding roller, the baffle is in contact with the two rotating lugs, a pulling plate is fixedly connected between the two rotating lugs, a spring ring is fixedly connected to one side of the pulling plate away from the guide column, and an extrusion ball is fixedly connected to one side of the spring ring away from the pulling plate.

[0008] Further, the wind pressure mechanism is arranged on the vertical plate, and is used for smoothing the polycarbonate film on the cooling roller. The wind pressure mechanism comprises a supporting arm fixedly connected to one side of the vertical plate, a blower fixedly connected to one end of the supporting arm, a wind guide frame fixedly connected to an air outlet of the blower, three flat holes opened in a lower portion of the wind guide frame, six supporting plates fixedly connected to the lower portion of the wind guide frame, two supporting plates in each group, a blowing flat pipe rotatably connected between the two supporting plates in each group, a universal telescopic pipe connected between each blowing flat pipe and the three flat holes in the lower portion of the wind guide frame, a threaded rotating rod rotatably connected to the vertical plate, a double-threaded screw thread arranged on the threaded rotating rod, a transmission assembly connected between the threaded rotating rod and the cooling roller, two side rods fixedly connected to one side of the wind guide frame, a rack long rod slidably connected to the two side rods, a threaded plate threadedly connected to the threaded rotating rod, the threaded plate connected to the rack long rod, a gear fixedly connected to one side of each blowing flat pipe, and the gear engaged with the rack long rod.

[0009] Further, the transmission assembly comprises a driving pulley, a driven pulley and a transmission belt, wherein the driving pulley is connected to the cooling roller, the driven pulley is connected to the threaded rotating rod, and the transmission belt is wound around the driving pulley and the driven pulley.

[0010] Further, the material supporting mechanism is arranged on one side of the vertical plate, and is used for supporting the last part of the material, and comprises a limiting frame fixedly connected to one side of the vertical plate, a sliding block slidably connected in the limiting frame, a return spring connected between the sliding block and the limiting frame, four round rods fixedly connected to one side of the sliding block, a long roller rotatably connected to one of the round rods, three short rollers rotatably connected to the other three round rods, a rotation sensor fixedly connected to the sliding block, one side of the long roller being connected to the rotation sensor, an electric push rod fixedly connected to the sliding block, a friction block fixedly connected to the telescopic rod of the electric push rod, and a reset button fixedly connected to the vertical plate and used for controlling the electric push rod to retract and reset.

[0011] The beneficial effects are: 1. By limiting the winding drum and then winding, the winding drum is less likely to move during winding, improving the quality of the material.

[0012] 2. The air blower blows air through the air guide frame and the air blowing flat pipe in sequence at high speed, the cooling roller rotates to drive the threaded rotating rod to rotate through the transmission assembly, the threaded rotating rod rotates to drive the threaded plate and the rack long rod to move horizontally reciprocatingly through the bidirectional thread, and then the horizontal reciprocating movement of the rack long rod drives the gear and the air blowing flat pipe to reciprocate, the reciprocating movement of the air blowing flat pipe drives the blown air to reciprocate over the polycarbonate film on the surface of the cooling roller, and since the air blowing flat pipe is flat, the blown air can squeeze the air bubbles between the polycarbonate film and the cooling roller like a hanging plate, and then the reciprocating wind can make the polycarbonate film more closely adhere to the surface of the cooling roller, and is less likely to appear bulging.

[0013] 3. When the polycarbonate film continues to be wound so that its tail end passes through the long roller, the polycarbonate film will no longer drive the long roller to rotate, and the long roller changes from the rotating state to the stopped state, triggering the rotation sensor, so that the rotation sensor controls the electric push rod to extend, and the extension of the electric push rod drives the friction block to press the side surface of the two short rollers, so that the two short rollers no longer rotate, and then the two short rollers clamp the tail end of the polycarbonate film, and then the winding roller continues to wind, pulling the polycarbonate film and the two short rollers to move towards the winding roller, and the return spring is compressed, and when the sliding block moves horizontally to contact the reset button, the reset button is triggered to control the electric push rod to retract and reset, so that the two short rollers no longer clamp the tail end of the polycarbonate film, so that the polycarbonate film is completed, and the clamping of the tail end of the polycarbonate film for winding can prevent the tail end of the polycarbonate film from falling to the ground without support, causing the film to be contaminated. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1The figure is a perspective view of the three-dimensional structure of the present application.

[0015] Figure 2 The figure is a perspective view of the three-dimensional structure of the forming mechanism and the limiting mechanism of the present application.

[0016] Figure 3 The figure is a perspective view of the three-dimensional structure of the forming mechanism and the rotary motor of the present application.

[0017] Figure 4 The figure is a perspective view of the three-dimensional structure of the limiting mechanism of the present application.

[0018] Figure 5 The figure is a perspective view of the three-dimensional structure of the winding roller of the present application.

[0019] Figure 6 The figure is a perspective view of the three-dimensional structure of the air pressure mechanism of the present application.

[0020] Figure 7 The figure is a perspective view of the three-dimensional structure of the air pressure mechanism of the present application.

[0021] Figure 8 The figure is a perspective view of the three-dimensional structure of the air guide frame and the air spraying flat tube of the present application.

[0022] Figure 9 The figure is a perspective view of the three-dimensional structure of the material supporting mechanism of the present application.

[0023] Figure 10 The figure is a perspective view of the three-dimensional structure of the material supporting mechanism of the present application.

[0024] Figure 11 The figure is a perspective view of the three-dimensional structure of the material supporting mechanism of the present application.

[0025] In the figure, 1 is the bottom plate, 2 is the vertical plate, 3 is the winding motor, 4 is the rotary motor, 51 is the winding roller, 52 is the heating extruder, 53 is the hopper, 54 is the cooling roller, 55 is the inclined plane shovel plate, 56 is the arc surface guide plate, 57 is the support rod, 58 is the guide roller, 61 is the guide column, 62 is the rotary protrusion, 63 is the baffle, 64 is the extrusion spring, 65 is the pulling plate, 66 is the elastic ring, 67 is the extrusion ball, 71 is the support arm, 72 is the air blower, 73 is the air guide frame, 74 is the support plate, 75 is the air spraying flat tube, 76 is the universal telescopic tube, 77 is the threaded rotating rod, 78 is the transmission assembly, 79 is the side rod, 710 is the rack long rod, 711 is the threaded plate, 712 is the gear, 81 is the limiting frame, 82 is the sliding block, 83 is the reset spring, 84 is the round rod, 85 is the long roller, 86 is the short roller, 87 is the rotary sensor, 88 is the electric push rod, 89 is the friction block, 810 is the reset button. DETAILED DESCRIPTION

[0026] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0027] Embodiment 1

[0028] A kind of polycarbonate film flow coating device, as shown in Figures 1-11 It includes base plate 1, the base plate 1 is fixedly connected with vertical plate 2, one side of the vertical plate 2 is fixedly connected with winding motor 3 and rotating motor 4, one side of the vertical plate 2 is provided with forming mechanism, the forming mechanism is connected with the winding motor 3 and the rotating motor 4, the forming mechanism is used to heat and extrude polycarbonate fluid, makes it cool to form film and then is wound, limiting mechanism is provided on the forming mechanism, the limiting mechanism is used to limit winding material cylinder, keeps the stability of winding.

[0029] The forming mechanism includes winding roller 51, the winding roller 51 is rotatably connected to one side of the vertical plate 2, the winding roller 51 is connected with the power shaft of the winding motor 3, the winding roller 51 is recessed on the end away from the vertical plate 2, the winding roller 51 is provided with convex edge on the side close to the winding motor 3, the vertical plate 2 is fixedly connected with heating extruder 52 on the side away from the winding roller 51, the hopper 53 is fixedly connected at the feed inlet of the upper portion of the heating extruder 52, the heating extruder 52 is provided with strip-shaped extrusion outlet in lower portion, the vertical plate 2 is rotatably connected with cooling roller 54 on the side close to the heating extruder 52, the cooling roller 54 is connected with the output shaft of the rotating motor 4, the cooling roller 54 is used to rotate and make the polycarbonate film casted on it cool and form, the base plate 1 is fixedly connected with inclined shovel plate 55, the inclined shovel plate 55 is in contact with one side of the cooling roller 54, the inclined shovel plate 55 is fixedly connected with arc surface guide plate 56 on the side away from the cooling roller 54, the vertical plate 2 is fixedly connected with support rod 57, the support rod 57 is rotatably connected with guide roller 58 on it.

[0030] The limiting mechanism includes guide column 61, the guide column 61 is fixedly connected in the recess of one end of the winding roller 51, two rotating lugs 62 are rotatably connected on the guide column 61, the rotating lugs 62 are structured as one side is convex and the other side is flat, the baffle 63 is slidably connected on the guide column 61, the baffle 63 is connected with extrusion spring 64 between the winding roller 51, the baffle 63 is in contact with two rotating lugs 62, the prying plate 65 is fixedly connected between two rotating lugs 62, the elastic ring 66 is fixedly connected on the side away from the guide column 61 of the prying plate 65, the extrusion ball 67 is fixedly connected on the side away from the prying plate 65 of the elastic ring 66.

[0031] In actual work, the shaped polycarbonate film is stored by winding on the winding cylinder. The winding cylinder is a hollow cylindrical shape with open ends. Initially, the extrusion spring 64 is in a compressed state. The operator first needs to pull the levering plate 65 to 90° to the direction perpendicular to the vertical plate 2, and then the levering plate 65 will drive the rotating block 62 to rotate 90°. When the rotating block 62 rotates, it will extrude the baffle 63 to move a distance towards the winding motor 3. The extrusion spring 64 is compressed, so that the plane on one side of the rotating block 62 is in contact with the baffle 63. In this way, stability can be maintained. Then the winding cylinder is placed on the winding roller 51, and the winding cylinder is aligned with the convex edge on the winding roller 51. After placing, the operator pulls the levering plate 65 to reset. The baffle 63 extrudes the rotating block 62 to prevent it from rotating. After the levering plate 65 is reset, the extrusion ball 67 will extrude one side of the winding cylinder, and the elastic ring 66 will deform. In this way, the winding cylinder is limited. Then the operator starts the heating extruder 52, and then starts the rotating motor 4 and the winding motor 3. Then the operator pours the polycarbonate particles into the heating extruder 52 through the hopper 53. The polycarbonate particles are melted after passing through the heating extruder 52, and are extruded from the strip-shaped extrusion port at the lower part of the heating extruder 52. The melted polycarbonate is flowed down to the surface of the cooling roller 54 and is cooled to form a polycarbonate film. Then the cooling roller 54 is driven by the rotating motor 4 to rotate slowly. The slowly rotating cooling roller 54 drives the melted polycarbonate falling on it to rotate towards the inclined shovel plate 55. Then the cooled polycarbonate film is attached to the cooling roller 54. With the continuous rotation of the cooling roller 54, the polycarbonate film is scooped up by the inclined shovel plate 55, so that the polycarbonate film is separated from the cooling roller 54. Then the polycarbonate film is continuously extended towards the winding roller 51 through the guidance of the arc surface guide plate 56, and then the polycarbonate film is extended out of the arc surface guide plate 56 and the guide roller 58. Then the operator pulls the polycarbonate film extending out of the arc surface guide plate 56 and the guide roller 58 to wind on the winding roller 51. Then the winding roller 51 is rotated under the drive of the winding motor 3 to automatically wind the polycarbonate film on the winding cylinder. When winding, the polycarbonate film passes below the guide roller 58 and drives the guide roller 58 to rotate. After limiting the winding cylinder, the winding cylinder is not easy to move during winding, which improves the quality of the winding.

[0032] Example 2

[0033] On the basis of example 1, as Figures 6-8As shown, the wind pressure mechanism is arranged on the vertical plate 2, and is used to smooth the polycarbonate film on the cooling roller 54. The wind pressure mechanism comprises a support arm 71 fixedly connected to one side of the vertical plate 2, one end of the support arm 71 is fixedly connected with a blower 72, the outlet of the blower 72 is fixedly connected with a wind guide frame 73, three flat holes are formed in the lower part of the wind guide frame 73, six support plates 74 are fixedly connected to the lower part of the wind guide frame 73, two support plates 74 form a group, a wind spraying flat pipe 75 is rotatably connected between the two support plates 74 of each group, a universal telescopic pipe 76 is connected between each wind spraying flat pipe 75 and the three flat holes in the lower part of the wind guide frame 73, a threaded rotating rod 77 is rotatably connected to the vertical plate 2, the threaded rotating rod 77 is provided with a double-thread, a transmission assembly 78 is connected between the threaded rotating rod 77 and the cooling roller 54, two side rods 79 are fixedly connected to one side of the wind guide frame 73, a rack long rod 710 is slidingly connected to the two side rods 79, a threaded plate 711 is threadedly connected to the threaded rotating rod 77, the threaded plate 711 is connected with the rack long rod 710, a gear 712 is fixedly connected to one side of each wind spraying flat pipe 75, and the gear 712 is engaged with the rack long rod 710.

[0034] The transmission assembly 78 comprises a driving pulley, a driven pulley and a transmission belt, wherein the driving pulley is connected with the cooling roller 54, the driven pulley is connected with the threaded rotating rod 77, and the transmission belt is wound around the driving pulley and the driven pulley.

[0035] When the operator starts the winding motor 3 and the blower 72 at the same time, the blower 72 blows the wind through the wind guide frame 73 and the wind spraying flat pipe 75 in sequence at high speed, the cooling roller 54 rotates to drive the threaded rotating rod 77 to rotate through the transmission assembly 78, the threaded rotating rod 77 rotates to drive the threaded plate 711 and the rack long rod 710 to move horizontally and reciprocally through the double-thread, then the rack long rod 710 moves horizontally and reciprocally to drive the gear 712 and the wind spraying flat pipe 75 to swing reciprocally, the universal telescopic pipe 76 bends and stretches adaptively when the wind spraying flat pipe 75 swings, and the wind spraying flat pipe 75 swings reciprocally to sweep the wind sprayed reciprocally over the polycarbonate film on the surface of the cooling roller 54, since the outlet of the wind spraying flat pipe 75 is flat, the wind blown out can squeeze the air bubbles between the polycarbonate film and the cooling roller 54 like a hanging plate, and then the wind swept reciprocally can make the polycarbonate film adhere to the surface of the cooling roller 54 more closely, so that the bulging phenomenon is less likely to occur.

[0036] Example 3

[0037] On the basis of example 2, as Figures 9-11The illustrated, also includes a material supporting mechanism, the material supporting mechanism is arranged in one side of the vertical plate 2, the material supporting mechanism is used for supporting the last part of the material, the material supporting mechanism includes a limiting frame 81, the limiting frame 81 is fixedly connected to one side of the vertical plate 2, the limiting frame 81 is slidably connected with a sliding block 82, the sliding block 82 and the limiting frame 81 are connected with a return spring 83, one side of the sliding block 82 is fixedly connected with four round rods 84, one of the round rods 84 is rotatably connected with a long roller 85, and the other three round rods 84 are rotatably connected with short rollers 86, the sliding block 82 is fixedly connected with a rotary sensor 87, the rotary sensor 87 is connected with one side of the long roller 85, the sliding block 82 is fixedly connected with an electric push rod 88, the rotary sensor 87 is used to control the electric push rod 88 to extend, the telescopic rod of the electric push rod 88 is fixedly connected with a friction block 89, the vertical plate 2 is fixedly connected with a reset button 810, and the reset button 810 is used to control the electric push rod 88 to retract and reset.

[0038] When the operator pulls the polycarbonate film extending between the arc-shaped guide plate 56 and the guide roller 58, the polycarbonate film is sequentially threaded between the long roller 85 and one of the short rollers 86 and between the other two short rollers 86, and then the three short rollers 86 and the long roller 85 are all in contact with the polycarbonate film, and then the polycarbonate film is wound on the winding roller 51 for winding. During winding, the polycarbonate film will rotate the short rollers 86 and the long roller 85 together. When the tail end of the polycarbonate film is separated from the cooling roller 54 and comes out between the arc-shaped guide plate 56 and the guide roller 58, the tail end of the polycarbonate film will continue to enter upward between the long roller 85 and one of the short rollers 86. When the polycarbonate film continues to be wound so that its tail end passes through the long roller 85, the polycarbonate film will no longer rotate the long roller 85 together, and the long roller 85 changes from a rotating state to a stopped state, which triggers the rotary sensor 87, so that the rotary sensor 87 controls the electric push rod 88 to extend. The extension of the electric push rod 88 will cause the friction block 89 to press against the sides of two of the short rollers 86, so that the two short rollers 86 no longer rotate. In this way, the two short rollers 86 clamp the tail end of the polycarbonate film. Then, due to the continuous winding of the winding roller 51, the polycarbonate film is pulled, thereby pulling the two short rollers 86 and the sliding block 82 to move towards the winding roller 51. The compression of the return spring 83 causes the reset button 810 to be triggered when the sliding block 82 moves horizontally to contact the reset button 810, thereby controlling the electric push rod 88 to retract and reset, so that the two short rollers 86 no longer clamp the tail end of the polycarbonate film, thereby allowing the polycarbonate film to complete winding. Then, the sliding block 82 is reset under the action of the return spring 83. In this way, clamping the tail end of the polycarbonate film for winding can prevent the tail end of the polycarbonate film from falling to the ground without support, thereby preventing contamination of the film.

[0039] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A polycarbonate film flow coating apparatus characterized by, The utility model provides a kind of poly carbonate film production line, including bottom plate (1), the bottom plate (1) is fixedly connected with vertical plate (2), the vertical plate (2) one side is fixedly connected with winding motor (3) and rotary motor (4), the vertical plate (2) one side is provided with forming mechanism, the forming mechanism is connected with the winding motor (3) and the rotary motor (4), the forming mechanism is used to heat and extrude polycarbonate fluid, make it cool to form film and then wind, limiting mechanism is provided on the forming mechanism, the limiting mechanism is used to limit winding material cylinder, keep the stability of winding; The forming mechanism includes a winding roller (51), which is rotatably connected to one side of the vertical plate (2). The winding roller (51) is connected to the power shaft of the winding motor (3). The end of the winding roller (51) away from the vertical plate (2) is recessed. The side of the winding roller (51) close to the winding motor (3) is provided with a convex edge. The vertical plate (2) is fixedly connected with a heating extruder (52) on the side away from the winding roller (51). The heating extruder (52) is fixedly connected with a hopper (53) at the upper inlet. The lower part of the heating extruder (52) is provided with a strip-shaped extrusion outlet. The vertical plate (2) is rotatably connected with a cooling roller (54) on the side close to the heating extruder (52). The cooling roller (54) is connected to the output shaft of the rotary motor (4). The bottom plate (1) is fixedly connected with an inclined shovel plate (55). The inclined shovel plate (55) is in contact with one side of the cooling roller (54). The side of the inclined shovel plate (55) away from the cooling roller (54) is fixedly connected with an arc guide plate (56). The vertical plate (2) is fixedly connected with a support rod (57). The support rod (57) is rotatably connected with a guide roller (58). Also include the air pressure mechanism, the air pressure mechanism is arranged on the vertical plate (2), the air pressure mechanism is used for smoothing the polycarbonate film on the cooling roller (54), the air pressure mechanism includes a support arm (71), the support arm (71) is fixedly connected to one side of the vertical plate (2), one end of the support arm (71) is fixedly connected with a blower (72), the air outlet of the blower (72) is fixedly connected with a guide frame (73), three flat holes are opened in the lower part of the guide frame (73), six support plates (74) are fixedly connected to the lower part of the guide frame (73), two support plates (74) are a group, a spraying flat pipe (75) is rotatably connected between the two support plates (74) of each group, a universal telescopic pipe (76) is connected between each spraying flat pipe (75) and the three flat holes in the lower part of the guide frame (73), a threaded rotating rod (77) is rotatably connected to the vertical plate (2), the threaded rotating rod (77) is provided with a two-way thread, a transmission assembly (78) is connected between the threaded rotating rod (77) and the cooling roller (54), two side rods (79) are fixedly connected to one side of the guide frame (73), a rack long rod (710) is slidably connected to the two side rods (79), a threaded plate (711) is threadedly connected to the threaded rotating rod (77), the threaded plate (711) is connected with the rack long rod (710), a gear (712) is fixedly connected to one side of each spraying flat pipe (75), and the gear (712) is engaged with the rack long rod (710).

2. A polycarbonate film flow coater as recited in claim 1 wherein, The limiting mechanism includes a guide column (61), the guide column (61) is fixedly connected in the groove at one end of the winding roller (51), two rotating lugs (62) are rotatably connected to the guide column (61), the rotating lugs (62) are of a structure that one side is convex and the other side is flat, a baffle (63) is slidably connected to the guide column (61), an extrusion spring (64) is connected between the baffle (63) and the winding roller (51), the baffle (63) is in contact with the two rotating lugs (62), a pulling plate (65) is fixedly connected between the two rotating lugs (62), a elastic ring (66) is fixedly connected to one side of the pulling plate (65) away from the guide column (61), and an extrusion ball (67) is fixedly connected to one side of the elastic ring (66) away from the pulling plate (65).

3. A polycarbonate film flow coater as recited in claim 1 wherein, The transmission assembly (78) includes a driving pulley, a driven pulley and a transmission belt, wherein the driving pulley is connected with the cooling roller (54), the driven pulley is connected with the threaded rotating rod (77), and the transmission belt is wound between the driven pulley and the driving pulley.

4. A polycarbonate film flow coater as recited in claim 1 wherein, Still include the material supporting mechanism, the material supporting mechanism is arranged in the vertical plate (2) one side, the material supporting mechanism is used for supporting the last part of the material, the material supporting mechanism includes the limit frame (81), the limit frame (81) is fixedly connected to the vertical plate (2) one side, the limit frame (81) is slidably connected with the sliding block (82), the sliding block (82) and the limit frame (81) between connection has the return spring (83), the sliding block (82) one side fixedly connected with four round bars (84), wherein one of the round bar (84) is rotatably connected with the long roller (85), and the other three round bars (84) are rotatably connected with the short roller (86), the sliding block (82) is fixedly connected with the rotary sensor (87), the rotary sensor (87) is connected with one side of the long roller (85), the sliding block (82) is fixedly connected with the electric push rod (88), the telescopic rod of the electric push rod (88) is fixedly connected with the friction block (89), the vertical plate (2) is fixedly connected with the reset button (810), and the reset button (810) is used for controlling the electric push rod (88) to retract reset.

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