Glue coating mechanism and drainage board convex shell rolling composite device

Abstract

The present invention discloses a glue coating mechanism and a composite device for rolling coating a convex shell of a drainage board, comprising a bottom plate, a top plate, a front side plate and a glue coating plate, wherein the bottom plate, the top plate, the front side plate and the glue coating plate form a hollow glue filling cavity, and a glue injection hole is provided in the middle of the front side plate; when coating, the glue injection hole is connected to a glue liquid spray head, and the glue liquid spray head fills the glue liquid into the glue filling cavity. The glue liquid of the present invention is actively sprayed onto the glue coating mechanism by the glue liquid spray head, and the glue liquid fills the glue filling cavity. The amount of glue liquid contacted by each part of the glue coating plate is equal, and the glue layer on the surface of the glue coating plate is evenly distributed, thereby ensuring that the glue layer coated on the glue coating roller is evenly distributed.

Description

Technical Field

[0001] The invention relates to the technical field of drainage board composites, in particular to a glue coating mechanism and a drainage board convex shell rolling composite device. Background Art

[0002] Drainage engineering is widely used in construction engineering, transportation engineering, garden engineering and municipal engineering. At present, plastic drainage boards are widely used in drainage engineering. Plastic drainage boards are made of convex platforms by stamping on plastic substrates, and the space between adjacent convex platforms constitutes a drainage channel. The top surface of the substrate of the drainage board is provided with non-woven fabric, and the substrate and the non-woven fabric are usually bonded and laminated by a glue coating and laminating machine.

[0003] Chinese utility model patent 201920790740.8 discloses a gluing and laminating machine for waterproof and drainage boards, which includes a gluing roller, a glue delivery roller, and a laminating roller; the waterproof and drainage board substrate is towed and conveyed to the right side of the gluing roller, and the glue delivery roller transfers the glue from the glue disc and coats it on the surface of the substrate through the gluing roller. As the substrate continues to be towed and conveyed, the substrate passes the upper position of the laminating roller, and the non-woven fabric is introduced between the laminating roller and the laminating pressure roller and adhered to the gluing surface of the substrate, thereby realizing the lamination of the substrate and the non-woven fabric. This type of drainage board glue laminating machine has the following problems: (1) The glue liquid is contained in the glue tray and is passively brought up by the glue delivery roller. It is easy for some parts to be brought up with more glue and other parts to be brought up with less glue, resulting in uneven distribution of the glue layer. The uneven distribution of the glue layer will directly affect the bonding strength between the substrate and the non-woven fabric, and reduce the bonding reliability; (2) The glue liquid in the glue tray is brought up by the glue delivery roller, transferred from the glue delivery roller to the glue application roller, and then coated on the surface of the substrate by the glue application roller. The glue liquid undergoes three levels of transfer, and each level of transfer will cause a certain amount of glue liquid waste. The more levels of transfer, the more glue liquid is wasted, and the higher the glue liquid consumption. The larger the transfer roller is, the higher the cost of raw materials will be. Moreover, as the number of transfer stages increases, the uniformity of the adhesive layer distribution will be further reduced, affecting the bonding strength between the substrate and the non-woven fabric and reducing the bonding reliability. (3) The lower part of the transfer roller is immersed in the adhesive liquid on the adhesive disc. When the adhesive liquid is transferred during rotation, the thickness of the adhesive liquid layer brought up is relatively thick. A corresponding scraper is required to scrape off the excess adhesive liquid, which increases the investment cost of the equipment. In addition, there are high requirements for the distance between the scraper and the upper glue roller. If the distance is too large, the adhesive layer cannot be scraped off. If it is too small, the entire adhesive layer may be scraped off or even scratched on the upper glue roller. There are high requirements for the assembly accuracy of the two, and the assembly cost of the equipment is high. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the existing drainage board gluing and compounding machines, the applicant provides a gluing mechanism with a reasonable structure and a drainage board convex shell roller coating compound device. The glue liquid is actively sprayed onto the gluing mechanism, coated by the gluing mechanism to the gluing roller, and then sprayed onto the substrate by the gluing roller. The glue layer has a high uniformity of distribution, reduces the consumption of glue liquid, reduces the cost of raw materials, does not need to be equipped with an additional scraping device, has low assembly requirements, and reduces the equipment investment cost and assembly cost.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A glue coating mechanism comprises a bottom plate, a top plate, a front side plate and a glue coating plate, wherein the bottom plate, the top plate, the front side plate and the glue coating plate form a hollow glue filling cavity, and a glue injection hole is opened in the middle of the front side plate; when coating, the glue injection hole is connected to a glue liquid nozzle, and the glue liquid nozzle fills the glue liquid into the glue filling cavity.

[0007] As a further improvement of the above technical solution:

[0008] The top plate is tilted downward toward the glue coating plate, the cross section of the glue filling cavity is trapezoidal, and the glue coating plate is located at the short side; the glue coating plate is a V-shaped plate, and its upper plate surface is bent toward the direction of the glue coating roller to form a bent portion.

[0009] Baffle assemblies are arranged on both sides of the glue filling cavity; the baffle assembly includes a support plate, an inner plate, an outer plate, and a pad plate, the support plate is fixed on the bottom plate, the pad plate and the support plate are fixedly connected by a plurality of first screws, the inner plate and the outer plate are respectively tightened and fixed on the pad plate by fasteners, and the outer plate is stacked on the outside of the inner plate; the ends of the inner plate and the outer plate located on one side of the glue-coated plate extend outward and protrude on the outside of the glue-coated plate, and the protruding height of the inner plate is greater than the protruding height of the outer plate.

[0010] The inner plate is an elastic member, and the rear side surface of the inner plate is a first arc surface; the rear side surface of the outer plate is a second arc surface; the first screw rod is located between the pad plate and the support plate and is provided with a first spring on the outer sleeve of the rod portion; a second screw rod is vertically passed through the inner plate and the outer plate, and a second spring is provided on the outer sleeve of the rod portion of the second screw rod; a plurality of oblong mounting holes are provided on the plate surface of the outer plate, and the second screw rod passes through the mounting holes.

[0011] The bottom of the bottom plate is provided with ribs; a plurality of supporting plates are arranged in the glue filling cavity, and a through hole is provided in the center of the supporting plate.

[0012] A composite device for roller coating of a convex shell of a drainage board adopts the above-mentioned gluing mechanism, including a gluing mechanism, a gluing roller, a first pressure roller, a second pressure roller, a counter pressure roller, a plurality of guide rollers and a cloth placing frame; the gluing mechanism is connected to a swing arm, the swing arm is hinged on the frame, and the other end of the swing arm is connected to the first cylinder; the first pressure roller is connected to the second cylinder, and the second pressure roller is connected to the third cylinder.

[0013] As a further improvement of the above technical solution:

[0014] The glue coating roller is a patterned roller, and the circumferential surface of the roller has fine lines; the circumferential surfaces of the two ends of the glue coating roller that contact the baffle assembly are smooth surfaces; heating devices are arranged at the two ends of the glue coating roller, and the inside of the glue coating roller is filled with heat transfer oil.

[0015] There is a certain gap between the glue coating plate and the glue coating roller of the glue coating mechanism; the gap between the glue coating plate and the glue coating roller can be adjusted.

[0016] A glue receiving plate is arranged below the glue coating mechanism, the glue coating roller and the first pressing roller.

[0017] A guide roller and two limit rollers are provided on the cloth placing rack, and there is a distance between the two limit rollers; the second cylinder is arranged horizontally, and can drive the first pressure roller to move horizontally to adjust the distance between the glue coating roller and the first pressure roller; the third cylinder is arranged vertically, and can drive the second pressure roller to move vertically to adjust the distance between the second pressure roller and the counter pressure roller; the gluing mechanism, the glue coating roller, the glue receiving plate, the first pressure roller, the second pressure roller, the counter pressure roller, a number of guide rollers and the cloth placing rack are arranged on the frame; a control cabinet is provided on one side of the frame.

[0018] The beneficial effects of the present invention are as follows:

[0019] The glue liquid of the present invention is actively sprayed onto the glue coating mechanism by the glue liquid spray head, and has the following advantages: (1) the glue liquid is filled in the glue filling cavity, and each part of the glue coating plate is contacted with a similar amount of glue liquid, and the glue layer on the surface of the glue coating plate is evenly distributed, thereby ensuring that the glue layer coated on the glue coating roller is evenly distributed; (2) the glue liquid is sequentially transferred to the substrate via the glue coating plate and the glue coating roller, and only undergoes two-stage transfer, which is more conducive to ensuring the uniform distribution of the glue layer during the transfer process, ensuring the bonding firmness between the substrate and the non-woven fabric, and ensuring the reliability of the bonding. The number of stages of glue liquid transfer is small, which also reduces the waste of glue liquid, reduces the consumption of glue liquid, and reduces the cost of raw materials; (3) the glue liquid is actively sprayed by the glue liquid spray head, and the glue liquid spraying amount has the initiative to be controlled. The spraying amount can be adjusted according to actual requirements to avoid the glue liquid amount being too little to affect the gluing effect or the glue liquid amount being too much to cause waste. No additional scraping device is required, which reduces equipment components, reduces equipment investment costs, reduces equipment assembly requirements and difficulty, and reduces equipment assembly costs.

[0020] The inclined glue coating plate of the present invention guides the glue liquid to flow toward the glue coating plate, which is more conducive to improving the uniformity of the glue liquid distribution on the surface of the glue coating plate.

[0021] When the glue is applied to the glue coating roller, the two surfaces of the glue coating plate both coat the surface of the glue coating roller with glue, so the coating area is large and the glue layer is more evenly distributed. Moreover, when applying the glue, the bent portion is located on the upper middle side of the glue coating roller, which can play the role of a scraper to scrape the glue downward, which is more conducive to improving the uniformity of the glue layer distribution on the surface of the glue coating roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a stereogram of the present invention.

[0023] Figure 2 for Figure 1 Longitudinal section view of .

[0024] Figure 3 It is a three-dimensional diagram of the glue coating mechanism.

[0025] Figure 4 for Figure 3 Longitudinal section view of .

[0026] Figure 5 for Figure 3 Cross-sectional view of .

[0027] Figure 6 for Figure 3 Enlarged view of part A in the middle.

[0028] In the figure: 1. Rack; 2. Control cabinet;

[0029] 3. Glue coating mechanism; 31. Bottom plate; 311. Rib plate; 32. Top plate; 33. Front side plate; 34. Glue coating plate; 341. Bending portion; 35. Glue filling cavity; 36. Glue injection hole; 37. Baffle assembly; 371. Support plate; 372. Inner plate; 3721. First arc surface; 373. Outer plate; 3731. Second arc surface; 3732. Mounting hole; 374. Backing plate; 375. First screw rod; 376. First spring; 377. Second screw rod; 378. Second spring; 38. Support plate;

[0030] 4. Glue coating roller; 5. Glue receiving plate; 6. First pressure roller; 7. Second pressure roller; 8. Counter pressure roller; 9. Guide roller; 10. Cloth placing rack; 101. Guide roller; 102. Limiting roller; 11. Swing arm; 12. Pin shaft; 13. First cylinder; 14. Heating device; 15. Second cylinder; 16. Third cylinder;

[0031] 100. substrate; 200. non-woven fabric; 300. composite board. DETAILED DESCRIPTION

[0032] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0033] like Figure 1 , Figure 2 As shown, a control cabinet 2 is provided on one side of the frame 1 of the present invention, and the control cabinet 2 is used to control the operation of the corresponding components on the frame 1. A gluing mechanism 3, a gluing roller 4, a glue receiving plate 5, a first pressing roller 6, a second pressing roller 7, a counter pressing roller 8, a plurality of guide rollers 9 and a cloth placing frame 10 are horizontally arranged between the two supporting plates of the frame 1.

[0034] like Figure 1 As shown, the two ends of the glue coating roller 4 are fixedly arranged on the support plate of the frame 1, and the glue coating mechanism 3 is arranged on the front side of the glue coating roller 4. The two ends of the glue coating mechanism 3 are respectively connected to the swing arms 11, as shown in FIG. Figure 2 As shown, the swing arm 11 is hinged on the support plate of the frame 1 through a pin shaft 12, and the other end of the swing arm 11 opposite to the glue coating mechanism 3 is connected to the piston rod of the first cylinder 13. The first cylinder 13 drives the swing arm 11 to rotate around the pin shaft 12 through the piston rod, thereby driving the glue coating mechanism 3 to approach the glue coating roller 4 for glue coating, or leave the glue coating roller 4 after glue coating is completed.

[0035] like Figure 3 , Figure 4 As shown, the glue coating mechanism 3 includes a bottom plate 31, a top plate 32, a front side plate 33 and a glue coating plate 34 which are respectively located at the lower, upper and front and rear sides. The bottom plate 31, the top plate 32, the front side plate 33 and the glue coating plate 34 surround a hollow glue filling cavity 35; a glue injection hole 36 is opened in the middle of the front side plate 33, and the glue injection hole 36 is connected to a glue nozzle (not shown in the figure); the glue is filled into the glue filling cavity 35 by the glue nozzle through the glue injection hole 36, and then coated on the glue coating roller 4 through the glue coating plate 34. The glue liquid of the present invention is actively sprayed onto the glue coating mechanism 3 by the glue liquid nozzle, which has the following advantages: (1) the glue liquid is filled in the glue filling cavity 35, and each part of the glue coating plate 34 is exposed to a considerable amount of glue liquid, and the glue layer on the surface of the glue coating plate 34 is evenly distributed, thereby ensuring that the glue layer coated on the glue coating roller 4 is evenly distributed; (2) the glue liquid is sequentially transferred to the substrate 100 through the glue coating plate 34 and the glue coating roller 4, and only undergoes two-stage transfer, which is more conducive to ensuring the uniform distribution of the glue layer during the transfer process, thereby ensuring the bonding firmness between the substrate 100 and the non-woven fabric 200. To ensure the reliability of bonding, the number of glue transfer stages is small, which also reduces the waste of glue, reduces the consumption of glue, and reduces the cost of raw materials; (3) The glue is actively sprayed by the glue nozzle, and the control of the glue spraying amount is active. The spraying amount can be adjusted according to actual requirements to avoid the glue coating effect being affected by too little glue or the waste caused by too much glue. There is no need to equip additional scraping devices, which reduces equipment components, reduces equipment investment costs, reduces equipment assembly requirements and difficulty, and reduces equipment assembly costs. Figure 4As shown, the top plate 32 is inclined downward from the front to the back toward the glue coating plate 34, the cross section of the glue filling cavity 35 is trapezoidal, the glue coating plate 34 is located at the short side, and the inclined glue coating plate 34 guides the glue liquid to flow to the glue coating plate 34, which is more conducive to improving the uniformity of the glue liquid distribution on the surface of the glue coating plate 34. The glue coating plate 34 is a V-shaped plate, and its upper plate surface is bent toward the direction of the glue coating roller 4 to form a bending portion 341. When the glue liquid is applied to the glue coating roller 4, both surfaces of the glue coating plate 34 apply glue to the surface of the glue coating roller 4, the coating area is large, and the glue layer is more evenly distributed. In addition, when applying glue, the bending portion 341 is located at the middle and upper side of the glue coating roller 4, which can scrape the glue liquid downward, which is more conducive to improving the uniformity of the glue layer distribution on the surface of the glue coating roller 4; when the glue coating plate 34 applies glue liquid to the glue coating roller 4, there is a certain gap between the glue coating plate 34 and the glue coating roller 4, and the gap between the two can be appropriately adjusted according to the amount of glue. The bottom of the bottom plate 31 has ribs 311, which can increase the strength of the bottom plate 31 and improve reliability. Figure 4 , Figure 5 As shown, a plurality of support plates 38 are disposed in the glue filling cavity 35 , and a through hole is provided in the center of the support plate 38 to conduct the entire glue filling cavity 35 .

[0036] like Figure 3 As shown, the two ends of the glue coating mechanism 3 are respectively provided with baffle assemblies 37 to block the open surfaces on both sides of the glue filling cavity 35 to prevent the glue from overflowing from both sides. Figure 6 As shown, the baffle assembly 37 includes a support plate 371, an inner plate 372, an outer plate 373, and a pad 374. The support plate 371 is fixed on the bottom plate 31, and the pad 374 is arranged parallel to the support plate 371. The pad 374 and the support plate 371 are fixedly connected by a plurality of first screws 375. The inner plate 372 and the outer plate 373 are respectively tightened and fixed on the pad 374 by fasteners; the inner plate 372 is sealed on the end surface of the glue filling cavity 35, and the outer plate 373 is stacked on the outer side of the inner plate 372. Figure 4 As shown, the inner plate 372 is a silicone elastic member, and the ends of the inner plate 372 and the outer plate 373 located on one side of the glue coating plate 34 extend outward and protrude outside the glue coating plate 34. The protruding height of the inner plate 372 is greater than the protruding height of the outer plate 373. The protruding height of the inner plate 372 matches the thickness of the glue layer to be coated on the substrate 100. When coating, the rear side surface of the inner plate 372 is pressed against the outer peripheral surfaces of the two ends of the glue coating roller 4 to seal the glue liquid at the two ends of the glue coating roller 4 to prevent the glue liquid from overflowing from both sides of the glue coating roller 4. Figure 6As shown, the rear side of the inner plate 372 is a first arc surface 3721, and the rear side of the outer plate 373 is a second arc surface 3731. The contour dimensions of the first arc surface 3721 and the second arc surface 3731 match the contour dimensions of the outer surface of the glue coating roller 4. When the inner plate 372 and the outer plate 373 are in contact with the glue coating roller 4, they are all engaged through the arc surface, with a large matching area and higher matching accuracy. The first screw 375 is located between the pad 374 and the support plate 371. The rod portion is provided with a first spring 376. The first screw 375 passes through the support plate 371 and is tightened by a nut. The first spring 376 can provide elastic force to press the inner plate 372 onto the glue coating roller 4. The radial pressing force can be adjusted by adjusting the compression amount of the first spring 376. A second screw rod 377 is vertically passed through the inner plate 372 and the outer plate 373, and a second spring 378 is arranged outside the rod of the second screw rod 377. The outer end of the second spring 378 is limited by a nut screwed on the second screw rod 377. The second spring 378 can provide elastic force to press the outer plate 373 onto the inner edge 272. The axial pressing force can be adjusted by adjusting the compression amount of the second spring 378. A plurality of oblong mounting holes 3732 are provided on the plate surface of the outer plate 373, and the second screw rod 377 passes through the mounting holes 3732. The oblong mounting holes 3732 can provide a certain adjustment margin for the second screw rod 377.

[0037] like Figure 1 As shown, the glue roller 4 is a patterned roller, and the circumferential surface of the roller has fine lines, and the roller surface with fine lines is more conducive to the uniform adhesion of the glue liquid; the circumferential surfaces of the two ends of the glue roller 4 that contact the baffle assembly 37 are smooth surfaces, which is conducive to the inner side plate 372 of the baffle assembly 37 being closely attached to the glue roller 4, playing an effective role in blocking the glue. The two ends of the glue roller 4 are provided with heating devices 14, and the inside of the glue roller 4 is filled with heat-conducting oil (not shown in the figure). The heating device 14 heats the heat-conducting oil in the glue roller 4, so that the heat-conducting oil circulates in the glue roller 4, and heats the glue liquid on the surface of the glue roller 4, so that the glue liquid can be smoothly coated on the substrate 100.

[0038] like Figure 1 , Figure 2 As shown, the glue receiving plate 5 is located below the glue coating mechanism 3, the glue coating roller 4 and the first pressure roller 6, and is used to catch the dripping glue to prevent the glue from falling onto the ground and posing a safety hazard.

[0039] like Figure 2 As shown, the two ends of the first pressing roller 6 are respectively connected to the horizontal second cylinder 15, and the second cylinder 15 can drive the first pressing roller 6 to move horizontally to adjust the distance between the glue coating roller 4 and the first pressing roller 6. The two ends of the second pressing roller 7 are respectively connected to the vertical third cylinder 16, and the third cylinder 16 can drive the second pressing roller 7 to move vertically to adjust the distance between the second pressing roller 7 and the counter pressing roller 8.

[0040] like Figure 2 As shown, the cloth placing frame 10 is provided with a guide roller 101 and two limit rollers 102 , and there is a gap between the two limit rollers 102 . The nonwoven fabric 200 is introduced by the guide roller 101 and passes through the gap between the two limit rollers 102 .

[0041] When the present invention is actually used, the glue coating mechanism 3 sprays glue onto the glue coating roller 4; the substrate 100 is guided to the first pressing roller 6 via the guide roller 9, and after being coated with glue by the glue coating roller 4, it is guided to the second pressing roller 7 via the guide roller 9; the non-woven fabric 200 is guided to the counter-pressing roller 8 via the guide roller 101 of the cloth placing rack 10, and is pressed and bonded with the substrate 100 on the second pressing roller 7 to form a composite plate 300, and then guided out by the guide roller 9.

[0042] The above description is an explanation of the present invention, not a limitation of the present invention. The present invention may be modified in any form without violating the spirit of the present invention.

Claims

1. A gluing mechanism, characterized in that: The invention comprises a bottom plate (31), a top plate (32), a front side plate (33) and a glue coating plate (34); the bottom plate (31), the top plate (32), the front side plate (33) and the glue coating plate (34) form a hollow glue filling cavity (35); a glue injection hole (36) is opened in the middle of the front side plate (33); when applying glue, the glue injection hole (36) is connected to a glue liquid nozzle, and the glue liquid nozzle fills the glue liquid into the glue filling cavity (35); the top plate (32) is inclined downward toward the glue coating plate (34); the cross section of the glue filling cavity (35) is trapezoidal; the glue coating plate (34) is inclined downward toward the glue coating plate (34); the cross section of the glue filling cavity (35) is trapezoidal; the glue coating plate (34) is inclined downward toward the glue coating plate (34); the cross section of the glue filling cavity (35) is trapezoidal; the cross section of ... ) is located at the short side; the glue coating plate (34) is a V-shaped plate, the upper plate surface of which is bent toward the direction of the glue coating roller (4) to form a bent portion (341); baffle assemblies (37) are provided on both sides of the glue filling cavity (35); the baffle assembly (37) includes a support plate (371), an inner plate (372), an outer plate (373), and a pad (374); the support plate (371) is fixed on the bottom plate (31), the pad (374) and the support plate (371) are fixedly connected by a plurality of first screws (375), and the inner plate (372) The outer plate (373) is respectively fastened to the backing plate (374) by fasteners, and the outer plate (373) is stacked on the outer side of the inner plate (372); the end portions of the inner plate (372) and the outer plate (373) located on one side of the rubber-coated plate (34) extend outward and protrude on the outer side of the rubber-coated plate (34), and the protruding height of the inner plate (372) is greater than the protruding height of the outer plate (373); the inner plate (372) is an elastic member, and the rear side surface of the inner plate (372) is a first arc surface (3721); the outer plate (37 3) has a rear side surface as a second arc surface (3731); a first spring (376) is provided on the outer sleeve of the rod portion of the first screw rod (375) located between the pad plate (374) and the support plate (371); a second screw rod (377) is vertically passed through between the inner plate (372) and the outer plate (373), and a second spring (378) is provided on the outer sleeve of the rod portion of the second screw rod (377); a plurality of oblong mounting holes (3732) are provided on the plate surface of the outer plate (373), and the second screw rod (377) passes through the mounting holes (3732).

2. The gluing mechanism according to claim 1, characterized in that: The bottom of the bottom plate (31) is provided with a rib plate (311); a plurality of support plates (38) are arranged in the glue filling cavity (35), and a through hole is provided in the center of the support plate (38).

3. A drainage board convex shell rolling composite device, characterized in that: A gluing mechanism as claimed in any one of claims 1 to 2 is used, comprising a gluing mechanism (3), a gluing roller (4), a first pressure roller (6), a second pressure roller (7), a counter pressure roller (8), a plurality of guide rollers (9) and a cloth placing frame (10); the gluing mechanism (3) is connected to a swing arm (11), the swing arm (11) is hinged to the frame (1), and the other end of the swing arm (11) is connected to the first cylinder (13); the first pressure roller (6) is connected to the second cylinder (15), and the second pressure roller (7) is connected to the third cylinder (16).

4. The drainage board convex shell roller coating composite device according to claim 3 is characterized in that: The glue coating roller (4) is a patterned roller, and the circumferential surface of the roller has fine lines; the circumferential surfaces of the two ends of the glue coating roller (4) that are in contact with the baffle assembly (37) are smooth surfaces; heating devices (14) are provided at the two ends of the glue coating roller (4), and the inside of the glue coating roller (4) is filled with heat transfer oil.

5. The drainage board convex shell roller coating composite device according to claim 3 is characterized in that: There is a certain gap between the glue coating plate (34) of the glue coating mechanism (3) and the glue coating roller (4); the gap between the glue coating plate (34) and the glue coating roller (4) can be adjusted.

6. The drainage board convex shell roller coating composite device according to claim 3, characterized in that: A glue receiving plate (5) is provided below the glue coating mechanism (3), the glue coating roller (4) and the first pressing roller (6).

7. The drainage board convex shell roller coating composite device according to claim 3, characterized in that: A guide roller (101) and two limit rollers (102) are arranged on the cloth placing frame (10), and a distance is provided between the two limit rollers (102); the second cylinder (15) is arranged horizontally, and can drive the first pressure roller (6) to move horizontally to adjust the distance between the glue coating roller (4) and the first pressure roller (6); the third cylinder (16) is arranged vertically, and can drive the second pressure roller (7) to move vertically to adjust the distance between the second pressure roller (7) and the counter pressure roller (8); the glue coating mechanism (3), the glue coating roller (4), the glue receiving plate (5), the first pressure roller (6), the second pressure roller (7), the counter pressure roller (8), a plurality of guide rollers (9) and the cloth placing frame (10) are arranged on the frame (1); and a control cabinet (2) is arranged on one side of the frame (1).

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