CN216459724U

CN216459724U - Automatic knife coating roller coat construction equipment of two component composite coating

Info

Publication number: CN216459724U
Application number: CN202122775676.6U
Authority: CN
Inventors: 温晓滨; 温子赫; 温子奕
Original assignee: Qingdao Meilikun Machinery Manufacturing Co ltd
Current assignee: Qingdao Meilikun Machinery Manufacturing Co ltd
Priority date: 2021-11-14
Filing date: 2021-11-14
Publication date: 2022-05-10
Anticipated expiration: 2031-11-14

Abstract

The invention discloses an automatic blade coating and roller coating construction device for a double-component composite coating, which comprises the following components: the device comprises a vehicle body, a discharging device, a stirring and discharging device, a lifting spreading device, a knife coating device and a roller coating and napping device; the vehicle body is provided with four omnidirectional wheels; the base of the discharging device is fixedly arranged on the vehicle body; the support frame of the stirring and discharging device is fixedly arranged on the vehicle body; the lifting spreading device is arranged on a rear end connecting plate of the vehicle body; the blade coating device and the roller coating napping device are fixedly arranged on the lifting spreading device; the automatic blade coating and roller coating construction device for the double-component composite coating realizes continuous blanking construction of the composite coating in the continuous mixing and stirring process, improves the construction efficiency and saves manpower.

Description

Automatic knife coating roller coat construction equipment of two component composite coating

Technical Field

The invention designs a continuous construction device for a double-component composite coating, and particularly relates to an automatic blade coating and roller coating construction device for the double-component composite coating.

Background

At present, the construction of the composite coating still adopts manual construction, the efficiency is low, the labor intensity is high, the harm of the roller coating operation of the composite coating to a human body and the requirement of a strict roller coating process are comprehensively considered; meanwhile, the adaptation period of the two-component coating is very short, the optimal construction working life is 30 minutes after uniform mixing, otherwise, the curing can occur, the continuous construction and the cleaning of equipment are difficult, and in order to overcome the problems, the invention develops the automatic blade coating and roller coating construction device of the two-component composite coating, the continuous blanking and the construction of the two-component coating are realized in the continuous mixing and stirring process, and the problem that the normal and continuous work cannot be realized due to the coating curing phenomenon on the equipment in the construction process is avoided.

Disclosure of Invention

The invention aims to solve the problems and provides the automatic blade coating and roller coating construction device for the double-component composite coating, which is simple in structure, convenient to operate and high in automation level, so that the working efficiency of continuous construction of the composite coating is improved.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the invention relates to an automatic blade coating and roller coating construction device for a double-component composite coating, which is characterized by comprising the following components: the device comprises a vehicle body, a discharging device, a stirring and discharging device, a lifting spreading device, a knife coating device and a roller coating and napping device; the vehicle body is provided with four omnidirectional wheels; the base of the discharging device is fixedly arranged on the vehicle body; the support frame of the stirring and discharging device is fixedly arranged on the vehicle body; the lifting spreading device is arranged on a rear end connecting plate of the vehicle body; the blade coating device and the roller coating napping device are fixedly arranged on the lifting spreading device.

Further, the discharging device comprises: the device comprises a base, a charging barrel, a supporting frame, a motor I, a spiral belt and a packing auger mechanism I; the base is composed of four rectangular stand columns and an upper rectangular plate, fixed support legs are machined at the bottom of the base, the base is connected with the vehicle body through the fixed support legs, the number of the charging barrels is two, the charging barrels are cylindrical barrels, a cylindrical through hole is formed in the bottom of the charging barrel, the cylindrical through hole in the bottom of the charging barrel is located outside the rectangular plate above the base, the two charging barrels are fixedly and symmetrically arranged on the base, the support frame is composed of the upper rectangular plate and two side rectangular plates which are bilaterally symmetrical, two through holes are symmetrically machined in the upper rectangular plate, the support frame is fixedly arranged on the base through the two side rectangular plates which are bilaterally symmetrical, the motor I and the ribbon are provided with two sets, the motor I is fixedly and symmetrically arranged at the through hole of the rectangular plate above the support frame, the outer edge of the ribbon is tangent to the inner wall of the charging barrel and is connected with the motor I through a coupler, auger mechanism I has two sets altogether, every set auger mechanism I includes: the packing auger comprises an auger cylinder, a motor supporting seat, a servo motor and an auger, wherein the auger cylinder is formed by welding stainless steel pipes and is integrally L-shaped, the rear end of the auger cylinder is a discharge opening, the front end of the auger cylinder is welded on a cylindrical through hole at the bottom of the charging cylinder, the motor supporting seat consists of a flange plate with five through holes processed at two ends and four middle connecting rods, the flange plate at one end of the motor supporting seat is fixedly arranged on the auger cylinder through bolts, the servo motor is fixedly arranged on the flange plate at the other end of the motor supporting seat through bolts, and the auger is connected with the servo motor through a coupler; the servo motor drives the auger to rotate forward to achieve discharging work, the motor I drives the spiral belt to rotate to achieve cleaning of the cylinder wall of the charging barrel in the discharging process, after a certain discharging amount is achieved, the motor I stops rotating, and the servo motor stops discharging in a reverse rotation mode.

Further, the stirring discharge device comprises: the device comprises a bracket, a stirring barrel, a packing auger mechanism II, a motor II and a composite stirring paddle; the stirring device comprises a support, a stirring barrel, a motor II, a discharging device, a composite stirring paddle and a motor II, wherein the support consists of four rectangular vertical plates and a cross beam with an I-shaped top, a supporting seat is processed in the middle of each rectangular vertical plate, a through hole is processed in the middle of the cross beam at the top, the support is fixedly installed on the vehicle body through the four rectangular vertical plates, the stirring barrel is a conical barrel, a cylindrical through hole is formed in the bottom of the stirring barrel, the stirring barrel is fixedly installed on the supporting seat in the middle of the four rectangular vertical plates of the support, the structure of the packing auger mechanism II is the same as that of the packing auger mechanism I of the discharging device, the packing auger mechanism II is fixedly installed on the cylindrical through hole in the bottom of the stirring barrel, the motor II is fixedly installed at the through hole in the middle of the cross beam at the top of the support, the composite stirring paddle consists of an inner layer and an outer layer of spiral belt type stirring blade, and is connected with the motor II through a shaft coupling and placed in the stirring barrel; the motor II is driven, the composite stirring paddle rotates to realize stirring operation, the stirring process is carried out, the servo motor of the auger mechanism II rotates reversely to prevent coating from flowing out, the stirring is completed, the unloading work is realized through the servo forward rotation of the auger mechanism II, the unloading work is realized through the servo motor forward rotation of the auger mechanism I, and the discharging work is realized through the servo motor forward rotation of the auger mechanism I.

Further, the lift spreader apparatus comprises: the device comprises a front supporting seat, a hydraulic cylinder, a side plate, a universal wheel, a connecting plate, a bidirectional screw, a motor III and a gear; the front supporting seat is fixedly arranged at the rear end of the vehicle body; the two hydraulic cylinders are respectively and fixedly arranged at the rear end of the vehicle body and positioned in front of the front supporting seat; the front part of the side plate is provided with a universal wheel mounting base, and the side plate is hinged on the front supporting seat; the universal wheels are fixedly arranged on the universal wheel mounting base at the front part of the side plate and support the side plate; the connecting plate is formed by hinging an upper connecting rod and a lower connecting rod, the middle part of the upper connecting rod is hinged on the hydraulic cylinder, one end of the connecting plate is hinged on the vehicle body, and the other end of the connecting plate is hinged on the side plate; the length of the two-way screw is 1360mm, the left and right sides of the two-way screw are symmetrical and continuous helical blades, the rotating directions are opposite, the two-way screw is made of stainless steel, polytetrafluoroethylene and soluble polytetrafluoroethylene powder are sprayed on the surface of the two-way screw, the thickness of the coating is 1mm, and the two-way screws are respectively installed on the side plates through bearings and are positioned behind an auger mechanism II of the stirring and discharging device; the base of the motor III is fixed on the left side of the side plate, and the output shaft of the motor III is connected with the previous two-way screw rod through a coupler; the two gears are respectively arranged on the two-way screw rods and are positioned on the right side of the side plate to form a gear pair; the pneumatic cylinder is flexible to be passed through the connecting plate is realized lifting up and transferring of curb plate, motor III passes through the shaft coupling and drives the former two-way screw rod rotates to through gear engagement drive back one two-way screw rod rotates, realizes evenly spreading of coating.

Further, the blade coating device comprises: the device comprises a support frame I, a front baffle, an elastic element and a scraper; the supporting frame I is composed of rectangular steel plates at two sides, a middle rectangular steel plate and two square tubes at the middle, a row of seven connecting columns and a row of seven elastic element mounting seats are arranged on the rectangular steel plate at the middle of the supporting frame I and are respectively positioned at two sides of the rectangular steel plate at the middle of the supporting frame I, the connecting columns are positioned in front of the elastic element mounting seats, and the supporting frame I is fixedly mounted on a side plate of the lifting spreading device; the front baffle is fixedly arranged on the support frame I and forms an included angle of 120 degrees with a rectangular steel plate in the middle of the support frame I; the elastic element is fixedly arranged on an elastic element mounting seat of a rectangular steel plate in the middle of the support frame I; the scraper is composed of a toothed rectangular plate and two triangular plates, the tooth pitch of the toothed rectangular plate is 3cm, two rows of connecting columns matched with the connecting columns on the middle rectangular steel plate of the support frame I and the elastic element mounting seat are arranged on the scraper, the scraper is hinged with the connecting columns on the middle rectangular steel plate of the support frame I through one side of each connecting column, one side of each scraper is hinged with the elastic elements, and the elastic elements provide required pressure for the coating, so that the bonding performance of the coating and the ground is improved; the blade coating device is placed to a working position through a side plate of the lifting and spreading device, and the coating in a working area is scraped under the driving of the vehicle body.

Further, the roller coating galling device comprises: the device comprises a fixed support, a roller connecting plate, a roller and a pinwheel; the fixed support consists of rectangular plates at two sides and two support shafts in the middle, and is fixedly installed at the tail end of a side plate of the lifting spreading device; the roller connecting plates are seven sets in total, four sets are fixedly arranged on the front supporting shaft of the fixed support, and three sets are fixedly arranged on the rear supporting shaft of the fixed support; the roller is a cylindrical barrel made of polyethylene, rotating shafts are processed at two ends of the roller, and the roller is fixedly arranged on the roller connecting plate through a bearing; the pinwheel is arranged on two sides of the roller, two rows of supporting needles are uniformly processed on a disc of the pinwheel, the diameter of the disc of the pinwheel is equal to that of the roller, the overall diameter of the pinwheel is larger than that of the roller, the supporting needles of the pinwheel have different length sizes, and the roller coating height of the roller is adjusted by replacing the pinwheels of the supporting needles with different length sizes; the roller coating napping device is placed to a working position through a side plate of the lifting spreading device, and roller coating work is completed under the driving of the vehicle body.

The invention discloses an automatic blade coating and roller coating construction device for a double-component composite coating, which has the beneficial effects that:

(1) the automatic blade coating and roller coating construction device for the two-component composite coating can realize the mixing of coatings with different components and different proportions according to construction requirements, realize the continuous blanking and construction of the two-component coating in the continuous mixing and stirring process, and avoid the phenomenon of coating curing on equipment in the construction process to cause abnormal continuous work.

(2) The automatic blade coating and roller coating construction device for the double-component composite coating is simple in structure, the devices are closely connected, labor is clearly divided, a large amount of labor is saved on the premise of ensuring construction quality, and full-automatic discharging, stirring, discharging, strickling and roller coating can be realized, so that the construction efficiency is high.

Drawings

FIG. 1: the invention relates to an assembly diagram of an automatic blade coating and roller coating construction device for a double-component composite coating;

FIG. 2 is a schematic diagram: the invention relates to a discharging device structure chart I of a double-component composite coating automatic blade coating roller coating construction device;

FIG. 3: the invention relates to a discharging device structure chart II of a double-component composite coating automatic blade coating roller coating construction device;

FIG. 4: the invention relates to a stirring and discharging device structure chart I of a double-component composite coating automatic blade coating roller coating construction device;

FIG. 5: the invention relates to a stirring and discharging device structure chart II of a double-component composite coating automatic blade coating roller coating construction device;

FIG. 6: the invention relates to a structure diagram of a lifting spreading device of a double-component composite coating automatic blade coating roller coating construction device;

FIG. 7: the invention relates to a structure diagram of a scraping device of a double-component composite coating automatic scraping and roll coating construction device;

FIG. 8: the invention relates to a roller coating napping device structure diagram of a double-component composite coating automatic blade coating roller coating construction device;

in the figure: 1-vehicle body, 2-discharging device, 3-stirring discharging device, 4-lifting spreading device, 5-knife coating device, 6-roller coating roughening device, 21-base, 22-charging barrel, 23-supporting frame, 24-motor I, 25-helical belt, 26-auger mechanism I, 261-auger barrel, 262-motor supporting seat, 263-servo motor, 264-auger, 31-bracket, 32-agitating barrel, 33-auger mechanism II, 34-motor II, 35-composite agitating paddle, 41-front supporting seat, 42-hydraulic cylinder, 43-side plate, 44-universal wheel, 45-connecting plate, 46-bidirectional screw rod, 47-motor III, 48-gear, 51-supporting frame I and 52-front baffle plate, 53-elastic element, 54-scraper, 61-fixed support, 62-roller connecting plate, 63-roller and 64-pinwheel.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 8, an automatic blade coating and roll coating construction device for a two-component composite coating comprises: the device comprises a vehicle body 1, a discharging device 2, a stirring and discharging device 3, a lifting spreading device 4, a knife coating device 5 and a roller coating and roughening device 6; the vehicle body 1 is provided with four omnidirectional wheels; the base 21 of the discharging device 2 is fixedly arranged on the vehicle body 1; the support frame 23 of the stirring and discharging device 3 is fixedly arranged on the vehicle body 1; the lifting spreading device 4 is arranged on a connecting plate at the rear end of the vehicle body 1; the blade coating device 5 and the roller coating and napping device 6 are fixedly arranged on the lifting spreading device 4; the discharging device 2 comprises: the device comprises a base 21, a charging barrel 22, a support frame 23, a motor I24, a spiral belt 25 and a packing auger mechanism I26; the stirring and discharging device 3 comprises: the device comprises a bracket 31, a stirring barrel 32, an auger mechanism II 33, a motor II 34 and a composite stirring paddle 35; the lift spreader device 4 includes: the device comprises a front supporting seat 41, a hydraulic cylinder 42, a side plate 43, a universal wheel 44, a connecting plate 45, a bidirectional screw 46, a motor III47 and a gear 48; the blade coating device 5 comprises: a support frame I51, a front baffle plate 52, an elastic element 53 and a scraper 54; the roller coating and galling device 6 comprises: fixed bolster 61, roller connecting plate 62, roller 63, pinwheel 64.

As shown in fig. 1 to 8, the working method of the automatic blade coating and roll coating construction device for the two-component composite coating comprises the following specific steps: the servo motor 263 drives the auger 264 to rotate positively to realize discharging work, the motor I24 drives the spiral belt 25 to rotate to realize cleaning of the cylinder wall of the charging barrel 22 in the discharging process, after a certain discharging amount is finished, the motor I24 stops rotating, and the servo motor 263 rotates reversely to stop discharging; the composite stirring paddle 35 consists of an inner layer of helical ribbon stirring blades and an outer layer of helical ribbon stirring blades, is connected with the motor II 34 through a coupler and is placed in the stirring barrel 32; the motor II 34 drives the composite stirring paddle 35 to rotate to realize stirring operation, the servo motor of the auger mechanism II 33 rotates reversely to prevent the coating from flowing out in the stirring process, after stirring is completed, the servo of the auger mechanism II 33 rotates positively to realize discharging work, after discharging is completed, the hydraulic cylinder 42 stretches and retracts to realize lifting and lowering of the side plate 43 through the connecting plate 45, the motor III47 drives the former two-way screw rod 46 to rotate through a coupler, so that the latter two-way screw rod 46 is driven to rotate through meshing transmission of the gear 48, and uniform spreading of the coating is realized; the scraper 54 is hinged with a connecting column on a middle rectangular steel plate of the support frame I51 through one side of the connecting column, and is hinged with the elastic element 53 through one side, so that the elastic element 53 provides required pressure for the paint, and the bonding performance of the paint and the ground is improved; the blade coating device 5 is lowered to a working position through a side plate 43 of the lifting and spreading device 4, and paint in a working area is scraped under the driving of the vehicle body 1; the roller 63 is fixedly arranged on the roller connecting plate 62 through a bearing; the pinwheel 64 is arranged on two sides of the roller 63, the pinwheel 64 is a disc, two rows of supporting needles are uniformly processed on the disc, the diameter of the disc of the pinwheel 64 is equal to that of the roller 63, the overall diameter of the pinwheel 64 is larger than that of the roller 63, the supporting needles of the pinwheel 64 have different length sizes, and the roller coating height of the roller 63 is adjusted by replacing the pinwheel 64 with the supporting needles of different length sizes; the roller coating napping device 6 is lowered to a working position through the side plate 43 of the lifting spreading device 4, and roller coating work is completed under the driving of the vehicle body 1.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an automatic knife coating roller coat construction equipment of two component composite coating which characterized in that includes: the device comprises a vehicle body (1), a discharging device (2), a stirring and discharging device (3), a lifting spreading device (4), a knife coating device (5) and a roller coating and napping device (6); the vehicle body (1) is provided with four omnidirectional wheels; a base (21) of the discharging device (2) is fixedly arranged on the vehicle body (1); a support frame (23) of the stirring and discharging device (3) is fixedly arranged on the vehicle body (1); the lifting spreading device (4) is arranged on a rear end connecting plate of the vehicle body (1); the blade coating device (5) and the roller coating and napping device (6) are fixedly arranged on the lifting spreading device (4).

2. The automatic blade coating and roll coating construction device for the two-component composite coating according to claim 1, wherein the discharging device (2) comprises: the device comprises a base (21), a charging barrel (22), a support frame (23), a motor I (24), a spiral belt (25) and a packing auger mechanism I (26); the base (21) is composed of four rectangular columns and an upper rectangular plate, wherein fixed support legs are machined at the bottom of the four rectangular columns, the base (21) is connected with the car body (1) through the fixed support legs, the number of the charging barrels (22) is two, the charging barrels are cylindrical barrels, a cylindrical through hole is formed in the bottom of each charging barrel, the cylindrical through hole in the bottom of each charging barrel (22) is located outside the rectangular plate above the base (21), the two charging barrels (22) are fixedly and symmetrically arranged on the base (21), the supporting frame (23) is composed of the upper rectangular plate and two side rectangular plates which are bilaterally symmetrical, two through holes are symmetrically machined in the upper rectangular plate, the supporting frame (23) is fixedly arranged on the base (21) through the two side rectangular plates which are bilaterally symmetrical, two sets of the motors I (24) and the ribbon (25) are shared, and the motors I (24) are fixedly and symmetrically arranged at the through holes of the rectangular plates above the supporting frame (23), spiral shell area (25) outward flange is tangent with feed cylinder (22) inner wall, through the shaft coupling with motor I (24) are connected, auger mechanism I (26) are total two sets, every set auger mechanism I (26) include: an auger cylinder (261), a motor supporting seat (262), a servo motor (263) and an auger (264), wherein the auger cylinder (261) is formed by welding stainless steel pipes, the whole body is L-shaped, the rear end is a discharge opening, the front end of the auger cylinder (261) is welded on a cylindrical through hole at the bottom of the charging cylinder (22), the motor supporting seat (262) is composed of a flange plate with five through holes processed at two ends and four middle connecting rods, one end flange plate of the motor supporting seat (262) is fixedly installed on the auger cylinder (261) through bolts, the servo motor (263) is fixedly installed on the other end flange plate of the motor supporting seat (262) through bolts, and the auger (264) is connected with the servo motor (263) through a coupler; the servo motor (263) drives the auger (264) to rotate positively, the motor I (24) drives the spiral belt (25) to rotate to clean the cylinder wall of the charging cylinder (22) in the discharging process, after a certain discharging amount is completed, the motor I (24) stops rotating, and the servo motor (263) stops discharging in the reverse rotation mode.

3. The automatic blade coating and roll coating construction device for the two-component composite coating according to claim 1, wherein the stirring and discharging device (3) comprises: the device comprises a bracket (31), a stirring barrel (32), a packing auger mechanism II (33), a motor II (34) and a composite stirring paddle (35); the support (31) is composed of four rectangular vertical plates and a cross beam of which the top is in an I shape, a supporting seat is arranged at the middle part of each rectangular vertical plate, a through hole is arranged in the middle of the cross beam at the top, the support (31) is fixedly arranged on the vehicle body (1) through the four rectangular vertical plates, the stirring barrel (32) is a conical cylinder, a cylindrical through hole is arranged at the bottom, the stirring barrel (32) is fixedly arranged on the supporting seat at the middle part of the four rectangular vertical plates of the support (31), the packing auger mechanism II (33) is identical to the packing auger mechanism I (26) of the discharging device (2) in structure, the packing auger mechanism II (33) is fixedly arranged on the cylindrical through hole at the bottom of the stirring barrel (32), the motor II (34) is fixedly arranged at the middle through hole part of the cross beam at the top of the support (31), and the combined stirring paddle (35) is composed of an inner layer and an outer layer of spiral belt type stirring blades, the stirring device is connected with the motor II (34) through a coupler and placed in the stirring barrel (32); motor II (34) are through driving combined type stirring rake (35) are rotated and are realized stirring operation, the stirring in-process the servo motor reversal of auger mechanism II (33) prevents that coating from flowing, accomplishes the stirring back, the work of unloading is realized in the servo corotation of auger mechanism II (33), accomplishes the back of unloading, servo motor (263) corotation of auger mechanism I (26) realizes ejection of compact work.

4. The automatic blade and roller coating construction device of the two-component composite coating according to claim 1, wherein the lifting spreading device (4) comprises: the device comprises a front supporting seat (41), a hydraulic cylinder (42), a side plate (43), a universal wheel (44), a connecting plate (45), a bidirectional screw (46), a motor III (47) and a gear (48); the front supporting seat (41) is fixedly arranged at the rear end of the vehicle body (1); the two hydraulic cylinders (42) are respectively fixedly arranged at the rear end of the vehicle body (1) and positioned in front of the front supporting seat (41); the front part of the side plate (43) is provided with a universal wheel mounting base, and the side plate (43) is hinged on the front supporting seat (41); the universal wheel (44) is fixedly arranged on a universal wheel mounting base at the front part of the side plate (43) and supports the side plate (43); the connecting plate (45) is formed by hinging an upper connecting rod and a lower connecting rod, the middle part of the upper connecting rod is hinged on the hydraulic cylinder (42), one end of the connecting plate (45) is hinged on the vehicle body (1), and the other end of the connecting plate is hinged on the side plate (43); the length of the two-way screw (46) is 1360mm, the two-way screw is provided with symmetrical and continuous helical blades at the left and the right, the rotating directions are opposite, the two-way screw (46) is made of stainless steel, polytetrafluoroethylene and soluble polytetrafluoroethylene powder are sprayed on the surface of the two-way screw, the thickness of the coating is 1mm, and the two-way screws (46) are respectively arranged on the side plate (43) through bearings and are positioned behind the auger mechanism II (33) of the stirring and discharging device (3); the base of the motor III (47) is fixed on the left side of the side plate (43), and the output shaft of the motor III (47) is connected with the previous two-way screw (46) through a coupler; two gears (48) are respectively arranged on the two-way screw rods (46) and positioned on the right side of the side plate (43) to form a gear pair; pneumatic cylinder (42) are flexible to be passed through connecting plate (45) are realized lifting up and transferring of curb plate (43), motor III (47) drive former through the shaft coupling two-way screw rod (46) rotate, thereby pass through gear (48) meshing transmission drive back one two-way screw rod (46) rotate, realize the even spreading of coating.

5. The automatic blade and roller coating construction device of the two-component composite coating according to claim 1, wherein the blade coating device (5) comprises: the device comprises a support frame I (51), a front baffle (52), an elastic element (53) and a scraper (54); the supporting frame I (51) is composed of rectangular steel plates at two sides, a rectangular steel plate in the middle and two square tubes in the middle, a row of seven connecting columns and a row of seven elastic element mounting seats are arranged on the rectangular steel plate in the middle of the supporting frame I (51) and are respectively positioned at two sides of the rectangular steel plate in the middle of the supporting frame I (51), the connecting columns are positioned in front of the elastic element mounting seats, and the supporting frame I (51) is fixedly mounted on a side plate (43) of the lifting spreading device (4); the front baffle (52) is fixedly arranged on the support frame I (51) and forms an included angle of 120 degrees with a middle rectangular steel plate of the support frame I (51); the elastic element (53) is fixedly arranged on an elastic element mounting seat of a rectangular steel plate in the middle of the support frame I (51); the scraping plate (54) consists of a toothed rectangular plate and two triangular plates, the tooth pitch of the toothed rectangular plate is 3cm, two rows of connecting columns matched with the connecting columns on the middle rectangular steel plate of the support frame I (51) and the elastic element mounting seat are arranged on the scraping plate (54), the scraping plate (54) is hinged with the connecting columns on the middle rectangular steel plate of the support frame I (51) through one side of each connecting column, one side of each connecting column is hinged with the elastic element (53), and the elastic elements (53) provide required pressure for paint, so that the bonding performance of the paint and the ground is improved; and the blade coating device (5) is lowered to a working position through a side plate (43) of the lifting and spreading device (4), and the coating in a working area is scraped under the driving of the vehicle body (1).

6. The automatic knife coating and roller coating construction device of the two-component composite coating according to claim 1, wherein the roller coating roughening device (6) comprises: a fixed support (61), a roller connecting plate (62), a roller (63) and a pinwheel (64); the fixed support (61) consists of rectangular plates at two sides and two support shafts in the middle, and the fixed support (61) is fixedly arranged at the tail end of a side plate (43) of the lifting spreading device (4); seven sets of roller connecting plates (62) are arranged, four sets of roller connecting plates are fixedly arranged on the front supporting shaft of the fixed support (61), and three sets of roller connecting plates are fixedly arranged on the rear supporting shaft of the fixed support (61); the roller (63) is a cylindrical barrel made of polyethylene, rotating shafts are processed at two ends of the roller (63), and the roller (63) is fixedly arranged on the roller connecting plate (62) through a bearing; the pinwheel (64) is arranged on two sides of the roller (63), two rows of supporting pins are uniformly processed on one circular disc of the pinwheel (64), the diameter of the circular disc of the pinwheel (64) is equal to that of the roller (63), the overall diameter of the pinwheel (64) is larger than that of the roller (63), the supporting pins of the pinwheel (64) have different length sizes, and roller coating height adjustment of the roller (63) is realized by replacing the pinwheel (64) with the supporting pins of different length sizes; the roller coating napping device (6) is placed to a working position through a side plate (43) of the lifting spreading device (4), and roller coating work is completed under the driving of the vehicle body (1).