CN118308885A - Processing method of PU (polyurethane) coating fabric - Google Patents

Abstract

The invention relates to the technical field of PU (polyurethane) coating fabric processing, and provides a PU coating fabric processing method, which comprises the following steps: step one: placing a fabric to be processed on a processing device, and coating PU paint on the surface of the fabric; step two: pre-curing the fabric coated with the PU coating; step three: pressing the pre-cured fabric; step four: completely curing the pressed fabric; the processing device in the first to fourth steps comprises a frame, and the frame is sequentially provided with a coating structure, a first curing structure, a pressing structure and a second curing structure. Through the technical scheme, the problems that in the prior art, operators always repeat the same action, the operators are easy to fatigue for a long time, and then the PU coating in the coating groove is difficult to ensure to be completely consistent and uniform, and the quality and the performance of the coating are easy to influence are solved.

Description

Processing method of PU (polyurethane) coating fabric

Technical Field

The invention relates to the technical field of PU (polyurethane) coating fabric processing, in particular to a processing method of PU coating fabric.

Background

The PU coating fabric is a coating material commonly used for textile processing, and is generally composed of polyurethane resin, solvent, filler and the like. The PU coating fabric has excellent wear resistance, softness and waterproof performance, so the PU coating fabric is widely applied in the fields of clothing, shoe materials, bags and suitcases and the like.

The existing PU coating fabric processing method comprises the process steps of coating, pressing, curing and the like. In the processing process, the PU coating is required to be uniformly coated on the fabric, and then the coating is firmly combined with the fabric base material through the process steps of pressing, curing and the like, so that the final PU coating fabric is formed.

In the existing PU coating fabric processing process, operators are required to continuously stir back and forth in a coating groove by using a stirring plate, so that the uniform mixing of the components in the PU coating is ensured, the effect of the PU coating attached to the fabric is ensured to be consistent, the stirring mode requires the operators to repeatedly perform the same action all the time, the operators are easy to fatigue for a long time, the PU coating in the coating groove is difficult to ensure to be completely consistent and uniform, and the quality and the performance of the coating are easy to influence.

Disclosure of Invention

The invention provides a PU coating fabric processing method, which solves the problems that in the related art, operators always repeat the same action, and the operators are easy to fatigue for a long time, so that the PU coating in a coating groove is difficult to ensure to be completely consistent and uniform, and the quality and performance of the coating are easy to influence.

The technical scheme of the invention is as follows:

The PU coating fabric processing method comprises the following steps:

step one: placing a fabric to be processed on a processing device, and coating PU paint on the surface of the fabric;

step two: pre-curing the fabric coated with the PU coating;

step three: pressing the pre-cured fabric;

step four: completely curing the pressed fabric;

The processing device comprises a frame, wherein the frame is sequentially provided with a coating structure, a first curing structure, a pressing structure and a second curing structure;

The coating structure comprises a flow guide pipe, a raw material barrel, a coating roller and a supporting plate, wherein the coating roller is in butt joint with fabric, the supporting plate is fixedly connected to two sides of a frame, one end of the flow guide pipe is rotationally connected with a supporting frame, one end of the flow guide pipe, which is far away from a lifting block, is an open end, the coating roller is located at the open end of the flow guide pipe, the coating roller is rotationally connected with the flow guide pipe, an interval is reserved between the coating roller and the flow guide pipe, a stirring structure is arranged inside the raw material barrel, a conveying structure is arranged inside the raw material barrel, and the flow guide pipe is communicated with the conveying structure.

Further, honeycomb duct fixedly connected with discharging pipe, the discharging pipe is located the inside of honeycomb duct, discharging pipe and conveying structure intercommunication, be equipped with a plurality of openings on the discharging pipe, a plurality of openings are kept away from conveying structure end arrangement to the discharging pipe from discharging pipe and conveying structure communication end, the open end of honeycomb duct is connected with the restriction strip towards one side of frame detachably, leave the interval between restriction strip and the coating roller.

Further, the raw material barrel is located the side of frame, stirring structure includes agitator motor, puddler, agitator motor and raw material barrel upper end fixed connection, agitator motor's pivot is located inside the raw material barrel, puddler and agitator motor's pivot fixed connection, puddler fixedly connected with a plurality of stirring boards, the puddler extends to the raw material barrel inner wall from the puddler, be equipped with a plurality of mixing intervals on the puddler, mixing interval extends to the slope of puddler bottom from the junction of puddler and puddler, or extends to the puddler top from the junction of puddler and puddler, and the extending direction of mixing interval on the same puddler is the same, and a plurality of mixing intervals are linear arrangement along the junction of puddler and puddler, and the extending direction of mixing interval on the adjacent puddler is different, conveying structure includes the drawing liquid pump, the drawing liquid pump is close to the raw material barrel, be equipped with feed liquor pipe and drain pipe on the drawing liquid pump, the both ends of feed liquid pipe communicate with the feed liquor inlet and the bottom of raw material barrel respectively, the both ends of drain pipe and the feed liquor pump communicate with the drain respectively.

Further, backup pad middle part fixedly connected with lead screw, the one end that the lead screw was towards the frame is equipped with elevator motor, elevator motor's pivot and lead screw fixed connection, it is connected with the lifter to rotate on the lead screw, lifter and lead screw junction are equipped with the screw thread that matches with the lead screw, and the lifter rotates with the honeycomb duct to be connected.

Further, the first solidification structure includes first solidification shell, first solidification shell cover is established in the frame, the surface fabric passes from first solidification shell middle part, first solidification shell fixedly connected with hot-blast fan, hot-blast fan downside fixedly connected with heating pipe, the hot-blast fan is located the below of the inside surface fabric of first solidification shell, first solidification shell lateral wall is equipped with first air intake, first air intake is close to the heating pipe, first solidification shell top is equipped with first air outlet, first air outlet and the inside intercommunication of first solidification shell.

Further, the pressfitting structure includes the pressfitting roller, pressfitting roller rear end is equipped with the stamp roller, pressfitting roller and stamp roller all rotate with the frame and are connected, pressfitting roller and stamp roller all with the surface fabric butt.

Further, the second solidification structure includes the second solidification shell, the second solidification shell cover is established in the frame, the surface fabric passes from second solidification shell middle part, the inside bottom fixedly connected with cold wind fan of second solidification shell, second solidification shell lateral wall is equipped with the second air intake, the second air intake is close to cold wind fan, second solidification shell top is equipped with the second air outlet, the second air outlet is located cold wind fan top, one side that pressfitting structure was kept away from to cold wind fan is equipped with ultraviolet lamp, ultraviolet lamp is located the top of the inside surface fabric of second solidification shell, ultraviolet lamp orientation surface fabric, ultraviolet lamp and second solidification shell fixed connection.

Further, the coating structure front end is equipped with the mill flat roller, mill flat roller front end is equipped with the auxiliary roller, mill flat roller and auxiliary roller all rotate with the frame and be connected, mill flat roller and auxiliary roller all with surface fabric butt, the rear end of second solidification structure is equipped with the rewinding roller, the rewinding roller rotates with the frame and is connected.

The working principle and the beneficial effects of the invention are as follows:

According to the invention, the PU paint is placed in the raw material barrel, the PU paint is continuously stirred through the stirring structure in the raw material barrel, so that chemical substances in the PU paint are uniformly mixed, the uniformly mixed PU paint is conveyed into the guide pipe through the conveying structure, the PU paint flows to the surface of the paint roller through the guide pipe, and the PU paint is uniformly covered on the surface of the fabric through the paint roller; according to the invention, the PU paint can be uniformly mixed, and the mixed PU paint is uniformly coated on the fabric through the paint roller, so that the problems that in the related art, operators always repeat the same action, and the operators are easy to fatigue for a long time, so that the PU paint in the coating groove is difficult to ensure to be completely consistent and uniform, and the quality and performance of the coating are easy to influence are solved.

Drawings

The invention will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic illustration of the coating structure of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a cross-sectional view at A-A in FIG. 3;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is a schematic diagram of a stirring motor, stirring rod and stirring plate structure in the invention;

fig. 7 is a schematic view of a structure of a stirring motor, a stirring rod and a stirring plate in example 2.

In the figure: 1. a frame; 2. a flow guiding pipe; 3. a first cured shell; 4. a pressing roller; 5. a printing roller; 6. a second cured shell; 7. a rewinding roller; 10. an auxiliary roller; 11. grinding a leveling roller; 20. a raw material barrel; 21. a paint roller; 22. a support plate; 23. a discharge pipe; 24. a flow-limiting strip; 30. a hot air blower; 31. heating pipes; 32. a first air outlet; 33. a first air inlet; 60. a cold air blower; 61. an ultraviolet lamp; 62. a second air outlet; 63. a second air inlet; 201. a liquid pump; 202. a stirring motor; 203. a stirring rod; 204. a stirring plate; 205. mixing intervals; 206. a liquid outlet pipe; 207. a liquid inlet pipe; 220. a screw rod; 221. a lifting block; 222. and a lifting motor.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

As shown in fig. 1 to 6, the present embodiment provides a PU coating fabric processing method, which includes the following steps:

step one: placing a fabric to be processed on a processing device, and coating PU paint on the surface of the fabric;

step two: pre-curing the fabric coated with the PU coating;

step three: pressing the pre-cured fabric;

step four: completely curing the pressed fabric;

The processing device in the first to fourth steps comprises a frame 1, wherein the frame 1 is sequentially provided with a coating structure, a first curing structure, a pressing structure, a second curing structure and a rewinding roller 7; a plurality of rollers are arranged on the frame 1, the rollers are driven by a motor to rotate, the fabric is driven by the rollers to advance, the fabric coated with the PU paint is rewound by a rewinding roller 7, a supporting plate 22 is arranged between the rollers of the coating structure and the pressing structure, and the supporting plate 22 is used for supporting the fabric, so that the coating structure can stably coat the PU paint on the fabric; the PU coating can be stably pressed on the surface of the fabric by the pressing structure, so that the PU coating is tightly connected with the fabric.

In this embodiment, the coating structure includes honeycomb duct 2, raw materials bucket 20, coating roller 21, backup pad 22, coating roller 21 and surface fabric butt, backup pad 22 fixed connection is in the both sides of frame 1, the one end and the support frame rotation of honeycomb duct 2 are connected, the one end that elevating block 221 was kept away from to honeycomb duct 2 is the open end, coating roller 21 is located the open end of honeycomb duct 2, coating roller 21 and honeycomb duct 2 rotate to be connected, leave the interval between coating roller 21 and the honeycomb duct 2, the inside stirring structure that sets up of raw materials bucket 20, raw materials bucket 20 sets up conveying structure, honeycomb duct 2 and conveying structure intercommunication. The flow guide pipe 2 is used for guiding PU paint to the paint roller 21, the raw material barrel 20 is used for storing the PU paint, the paint roller 21 is used for coating the PU paint on the fabric, the paint roller 21 rotates in a passive rotation mode, namely, the forward motion of the fabric is utilized, and the paint roller 21 is driven to rotate through friction force, so that the PU paint can be coated on the fabric more uniformly, and the rotation speed of the paint roller 21 is matched with the forward motion speed of the fabric; there is no case where the rotation speed of the paint roller 21 is faster than the advancing speed of the facing, resulting in uneven thickness of the paint or abrasion of the surface of the facing. The surface of the paint roller 21 is provided with tiny and soft brush hair, the brush hair can help PU paint to form a more uniform film on the surface of the paint roller 21, and when the surface of the paint roller 21 contacts the fabric, the brush hair can uniformly transfer paint from the surface of the paint roller 21 to the surface of the fabric; the bristles can help to discharge bubbles in the PU coating, so that the bubbles are reduced in the coating process; the brush hair can form a tiny concave-convex surface on the paint roller 21, so that the contact area between the PU paint and the surface of the paint roller 21 is increased, and the adhesive force of the PU paint is increased; the thickness of the PU paint on the paint roller 21 can also be changed by adjusting the length and the density of the brush hairs, the longer brush hairs can make the thickness of the PU paint attached on the paint roller 21 thicker, and the shorter brush hairs can make the thickness of the PU paint attached on the paint roller 21 thinner. The backup pad 22 is used for supporting honeycomb duct 2, and then makes honeycomb duct 2 can support coating roller 21, and honeycomb duct 2 and backup pad 22 rotate to be connected, can be convenient for the operating personnel to lift up coating roller 21, maintains coating roller 21.

In this embodiment, honeycomb duct 2 fixedly connected with discharging pipe 23, discharging pipe 23 are located the inside of honeycomb duct 2, discharging pipe 23 and conveying structure intercommunication set up a plurality of openings on the discharging pipe 23, and a plurality of openings are arranged from discharging pipe 23 and conveying structure link end to discharging pipe 23 keep away from conveying structure end, and the open end of honeycomb duct 2 is connected with current-limiting strip 24 towards one side of frame 1 detachably, leaves the interval between current-limiting strip 24 and the coating roller 21. The discharging pipe 23 is used for uniformly covering PU paint inside the flow guiding pipe 2, so that the condition that the PU paint inside the flow guiding pipe 2 is more in one side and less in one side is avoided, and the condition easily affects the respective uniformity degree of the PU paint on the paint roller 21. The flow limiting strips 24 are used for limiting the thickness of the PU paint attached to the paint roller 21, and the interval between the flow limiting strips 24 and the paint roller 21 is changed by changing the flow limiting strips 24 with different widths, so that the thickness of the PU paint attached to the paint roller 21 is changed, and the thickness of the PU paint on the fabric is changed.

In this embodiment, the raw material barrel 20 is located on the side of the frame 1, the stirring structure includes a stirring motor 202 and a stirring rod 203, the stirring motor 202 is fixedly connected with the upper end of the raw material barrel 20, the rotating shaft of the stirring motor 202 is located inside the raw material barrel 20, the stirring rod 203 is fixedly connected with a plurality of stirring plates 204, the stirring plate 204 extends from the stirring rod 203 to the inner wall of the raw material barrel 20, a plurality of mixing intervals 205 are disposed on the stirring plate 204, the mixing intervals 205 extend obliquely from the connection of the stirring plate 204 and the stirring rod 203 to the bottom of the stirring plate 204, or extend obliquely from the connection of the stirring plate 204 and the stirring rod 203 to the top of the stirring plate 204, the connection edge of the mixing intervals 205 and the stirring plate 204 is linear, the extending directions of the mixing intervals 205 on the same stirring plate 204 and the stirring rod 203 are the same, the extending directions of the mixing intervals 205 on the adjacent stirring plates 204 are different, the conveying structure includes a liquid pump 201, the liquid pump 201 is close to the raw material barrel 20, a liquid suction pipe 207 and a liquid outlet pipe 206 are disposed on the liquid pump 201, or extend obliquely from the connection of the stirring plate 204 and the connection of the stirring plate 203 to the top of the stirring plate 204, or extend obliquely from the connection of the stirring plate 204 to the top of the stirring plate 204, the stirring plate 204 is in the extending direction of the stirring intervals of the stirring plate and the stirring rod, and the liquid pump 23 is respectively communicated with the two ends of the liquid pump and the liquid pump 23. The stirring motor 202 is used for driving the stirring rod 203 to rotate, the stirring rod 203 is used for driving the stirring plate 204 to move, the stirring plate 204 is used for uniformly mixing PU coatings in the raw material barrel 20, the mixing interval 205 is used for enabling the edges, connected with the stirring plate 204, of the adjacent stirring plates 204 to be linear, production is facilitated, production cost is reduced, the extending directions of the mixing intervals 205 on the adjacent stirring plates 204 are set to be different, the PU coatings can be stirred differently when the PU coatings pass through, the coverage area of a stirring area can be increased, more PU coatings can participate in the mixing process simultaneously, shearing force in different directions can be generated, the mixing of the PU coatings can be accelerated, vortex in different directions can be generated, convection and mixing of the interior of the PU coatings can be increased, the extending directions of the mixing intervals 205 on the adjacent stirring plates 204 can be set to be different, the mixing efficiency can be greatly increased, the condition that the PU coatings in the interval of the mixing intervals 205 can be always moved on the mixing intervals 205 and cannot be mixed with other PU coatings can be avoided, and the stirring plate 204 can be used for rapidly scattering and mixing the PU coatings. The liquid pump 201 is used for pumping out the PU paint in the raw material barrel 20 and conveying the PU paint into the discharging pipe 23, and the liquid inlet pipe 207 is communicated with the bottom plate of the raw material barrel 20, so that the PU paint in the raw material barrel 20 can be utilized to the greatest extent, the condition that the components of the PU paint in the raw material barrel 20 are precipitated to the barrel bottom can be avoided, and the barrel bottom of the raw material barrel 20 is set to be cone-shaped for utilizing the PU paint in the raw material barrel 20 to the greatest extent.

In this embodiment, a screw rod 220 is fixedly connected to the middle of the support plate 22, a lifting motor 222 is disposed at one end of the screw rod 220 facing the frame 1, a rotating shaft of the lifting motor 222 is fixedly connected with the screw rod 220, a lifting block 221 is rotatably connected to the screw rod 220, threads matched with the screw rod 220 are disposed at the joint of the lifting block 221 and the screw rod 220, and the lifting block 221 is rotatably connected with the flow guide pipe 2. The elevator motor 222 is used for driving the screw rod 220 to rotate, the screw rod 220 is used for driving the elevator block 221 to rotate, the elevator block 221 is used for driving the flow guide pipe 2 to move up and down, and then the height of the flow guide pipe 2 is changed, the specific principle is that the flow velocity of PU paint in the flow guide pipe 2 can be changed by changing the height of the flow guide pipe 2, and then the situation that the PU paint is accumulated at the joint of the flow guide pipe 2 and the paint roller 21 due to the too fast flow velocity of the PU paint is avoided, and then the PU paint is overflowed, so that the coating work of the PU paint is influenced.

In this embodiment, first solidification structure includes first solidification shell 3, first solidification shell 3 cover is established in frame 1, the surface fabric passes from first solidification shell 3 middle part, first solidification shell 3 fixedly connected with hot-air blower 30, hot-air blower 30 downside fixedly connected with heating pipe 31, hot-air blower 30 is located the below of the inside surface fabric of first solidification shell 3, first solidification shell 3 lateral wall sets up first air intake 33, first air intake 33 is close to heating pipe 31, first solidification shell 3 top sets up first air outlet 32, first air outlet 32 communicates with first solidification shell 3 is inside, first air outlet 32 communicates with the air pipe. The first curing shell 3 is used for avoiding the escape of hot air, influencing the pre-curing speed, the hot air blower 30 is used for introducing external air into the first curing shell 3, the heating pipe 31 is used for heating the introduced air, and the PU coating surface is cured through the hot air.

In this embodiment, the pressfitting structure includes pressfitting roller 4, and pressfitting roller 4 rear end sets up stamp roller 5, and pressfitting roller 4 and stamp roller 5 all rotate with frame 1 to be connected, pressfitting roller 4 and stamp roller 5 all with the surface fabric butt. The laminating roller 4 is used for laminating PU coating and surface fabric, makes its ability zonulae occludens, and stamp roller 5 is used for increasing the pleasing to the eye of surface fabric, sets up the pre-cure structure before the pressfitting structure for make the PU coating after the pre-cure can be better by the pressfitting to the surface fabric on, if the PU coating does not pre-cure, then the PU coating glues on laminating roller 4 and stamp roller 5 easily, can't realize the function with the closely laminating of PU coating and surface fabric, still can reduce the PU coating thickness on the surface fabric.

In this embodiment, the second solidification structure includes second solidification shell 6, second solidification shell 6 cover is established in frame 1, the surface fabric passes from second solidification shell 6 middle part, the inside bottom fixedly connected with cold wind fan 60 of second solidification shell 6, second solidification shell 6 lateral wall sets up second air intake 63, second air intake 63 is close to cold wind fan 60, second solidification shell 6 top sets up second air outlet 62, second air outlet 62 is located cold wind fan 60 top, second air outlet 62 and air pipe intercommunication, cold wind fan 60 is kept away from the one side of pressfitting structure and is set up ultraviolet lamp 61, ultraviolet lamp 61 is located the top of the inside surface fabric of second solidification shell 6, ultraviolet lamp 61 is towards the surface fabric, ultraviolet lamp 61 and the 6 fixed connection of second solidification shell. The cooling fan is used for reducing the temperature of the PU coating, enabling the temperature of the PU coating to approach or reach the room temperature, further improving the ultraviolet curing speed, the ultraviolet lamp 61 is used for rapidly curing the PU coating through ultraviolet rays, and ultraviolet curing is faster, energy-saving and environment-friendly compared with drying and curing.

In this embodiment, the coating structure front end sets up the mill flat roller 11, and mill flat roller 11 front end sets up auxiliary roller 10, and mill flat roller 11 and auxiliary roller 10 all rotate with frame 1 to be connected, mill flat roller 11 and auxiliary roller 10 all with the surface fabric butt, the rear end of second solidification structure sets up rewinding roller 7, rewinding roller 7 rotates with frame 1 to be connected. The grinding roller 11 is used for making the surface of the fabric smoother, and then the PU coating can be better attached to the surface of the fabric, the auxiliary roller 10 is used for fixing the fabric, the conditions that the fabric is warped and the like to influence the adhesion of the PU coating are avoided, and the rewinding roller 7 is used for winding up the finished fabric, so that the subsequent transportation and storage are convenient.

Example 2

As shown in fig. 7, the difference between embodiment 2 and embodiment 1 is that the edge of the mixing space 205 connected with the stirring plate 204 is in a wavy line shape, and the edge of the mixing space 205 in a wavy line shape is longer than the edge of the mixing space 205 in a straight line shape, on the premise that the extending length is the same, the edge length and the line shape of the mixing space 205 which are not connected with the stirring plate 204 are the same, and the edge inclination angle is the same, the edge of the mixing space 205 in a wavy line shape is longer, and the mixing space 205 in a wavy line shape can provide more vortex and shearing force on the stirring plate 204, so that the mixing of PU coating can be accelerated, and because the edge length is longer, the coverage of a stirring area is larger, more PU coating can participate in the mixing at the same time, and the mixing efficiency and uniformity are improved.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (8)

1. The PU coating fabric processing method is characterized by comprising the following steps of:

step one: placing a fabric to be processed on a processing device, and coating PU paint on the surface of the fabric;

step two: pre-curing the fabric coated with the PU coating;

step three: pressing the pre-cured fabric;

Step four: completely curing the pressed fabric, and ending the processing;

the processing device comprises a frame (1), wherein the frame (1) is sequentially provided with a coating structure, a first curing structure, a pressing structure and a second curing structure;

The utility model provides a coating structure includes honeycomb duct (2), raw materials bucket (20), coating roller (21), backup pad (22), coating roller (21) and surface fabric butt, backup pad (22) fixed connection is in the both sides of frame (1), the one end and the support frame of honeycomb duct (2) rotate to be connected, the one end that elevating block (221) was kept away from to honeycomb duct (2) is the open end, coating roller (21) are located the open end of honeycomb duct (2), coating roller (21) are connected with honeycomb duct (2) rotation, leave the interval between coating roller (21) and honeycomb duct (2), inside stirring structure that is equipped with of raw materials bucket (20), raw materials bucket (20) are equipped with conveying structure, honeycomb duct (2) and conveying structure intercommunication.

2. The PU coating fabric processing method according to claim 1, wherein the flow guide pipe (2) is fixedly connected with a discharge pipe (23), the discharge pipe (23) is positioned in the flow guide pipe (2), the discharge pipe (23) is communicated with a conveying structure, a plurality of openings are formed in the discharge pipe (23), the openings are linearly arranged from the communicating end of the discharge pipe (23) and the conveying structure to the end, far away from the conveying structure, of the discharge pipe (23), a flow limiting strip (24) is detachably connected to one side, facing the frame (1), of the open end of the flow guide pipe (2), and an interval is reserved between the flow limiting strip (24) and the coating roller (21).

3. The processing method of PU coating fabric according to claim 2, wherein the raw material barrel (20) is located at the side of the frame (1), the stirring structure comprises a stirring motor (202) and a stirring rod (203), the stirring motor (202) is fixedly connected with the upper end of the raw material barrel (20), a rotating shaft of the stirring motor (202) is located inside the raw material barrel (20), the stirring rod (203) is fixedly connected with a rotating shaft of the stirring motor (202), the stirring rod (203) is fixedly connected with a plurality of stirring plates (204), the stirring plates (204) extend from the stirring rod (203) to the inner wall of the raw material barrel (20), a plurality of mixing intervals (205) are arranged on the stirring plates (204), the mixing intervals (205) extend obliquely from the joint of the stirring plates (204) and the stirring rod (203) to the bottom of the stirring plates (204), or extend from the joint of the stirring plates (204) and the stirring rod (203) obliquely to the top of the stirring plates (204), the mixing intervals (205) on the same stirring plates (204) extend in the same direction, the mixing intervals (205) extend from the stirring plates (204) to the adjacent stirring plates (203) along the direction, the adjacent stirring plates (201) are arranged along the direction, the mixing structures do not include the mixing intervals (201), the liquid suction pump (201) is close to the raw material barrel (20), a liquid inlet pipe (207) and a liquid outlet pipe (206) are arranged on the liquid suction pump (201), two ends of the liquid inlet pipe (207) are respectively communicated with a liquid inlet of the liquid suction pump (201) and the bottom of the raw material barrel (20), and two ends of the liquid outlet pipe (206) are respectively communicated with a liquid outlet of the liquid suction pump (201) and the liquid outlet pipe (23).

4. The processing method of the PU coating fabric according to claim 1, wherein a screw rod (220) is fixedly connected to the middle of the supporting plate (22), a lifting motor (222) is arranged at one end of the screw rod (220) facing the frame (1), a rotating shaft of the lifting motor (222) is fixedly connected with the screw rod (220), a lifting block (221) is rotatably connected to the screw rod (220), threads matched with the screw rod (220) are arranged at the joint of the lifting block (221) and the screw rod (220), and the lifting block (221) is rotatably connected with the guide pipe (2).

5. The processing method of the PU coating fabric according to claim 1, wherein the first curing structure comprises a first curing shell (3), the first curing shell (3) is sleeved on a frame (1), the fabric passes through the middle of the first curing shell (3), the first curing shell (3) is fixedly connected with a hot air fan (30), the lower side of the hot air fan (30) is fixedly connected with a heating pipe (31), the hot air fan (30) is located below the fabric inside the first curing shell (3), a first air inlet (33) is formed in the side wall of the first curing shell (3), the first air inlet (33) is close to the heating pipe (31), a first air outlet (32) is formed in the top of the first curing shell (3), and the first air outlet (32) is communicated with the inside of the first curing shell (3).

6. The PU coating fabric processing method according to claim 1, wherein the lamination structure comprises a lamination roller (4), a printing roller (5) is arranged at the rear end of the lamination roller (4), the lamination roller (4) and the printing roller (5) are rotationally connected with the frame (1), and the lamination roller (4) and the printing roller (5) are abutted to the fabric.

7. The processing method of the PU coating fabric according to claim 1, wherein the second curing structure comprises a second curing shell (6), the second curing shell (6) is sleeved on the frame (1), the fabric passes through the middle of the second curing shell (6), a cold air blower (60) is fixedly connected to the bottom inside the second curing shell (6), a second air inlet (63) is formed in the side wall of the second curing shell (6), the second air inlet (63) is close to the cold air blower (60), a second air outlet (62) is formed in the top of the second curing shell (6), an ultraviolet lamp (61) is arranged on one side, far away from the pressing structure, of the cold air blower (60), the ultraviolet lamp (61) is located above the fabric inside the second curing shell (6), the ultraviolet lamp (61) faces towards, and the ultraviolet lamp (61) is fixedly connected with the second curing shell (6).

8. The PU coating fabric processing method according to claim 1, wherein the front end of the coating structure is provided with a grinding roller (11), the front end of the grinding roller (11) is provided with an auxiliary roller (10), the grinding roller (11) and the auxiliary roller (10) are rotationally connected with the frame (1), the grinding roller (11) and the auxiliary roller (10) are abutted with the fabric, the rear end of the second curing structure is provided with a rewinding roller (7), and the rewinding roller (7) is rotationally connected with the frame (1).