Corrugated paperboard hydrophobic coating roll coater

Abstract

The utility model relates to corrugated board hydrophobic coating roll coater technical field, concretely is corrugated board hydrophobic coating roll coater, including conveying platform, be provided with the protective housing on the conveying platform, be provided with no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no. The overlapping section of no

Description

Technical Field

[0001] This utility model relates to the technical field of hydrophobic coating roller coating machine for corrugated cardboard, specifically a hydrophobic coating roller coating machine for corrugated cardboard. Background Technology

[0002] The hydrophobic coating roller coating machine for corrugated cardboard is an automated coating equipment specifically designed to upgrade the surface functions of corrugated cardboard. Its core function is to uniformly and precisely coat the surface of the corrugated cardboard with hydrophobic coating through roller coating process, forming a dense waterproof film. This solves the problems of traditional corrugated cardboard such as easy moisture absorption, decreased strength after contact with water, and poor stain resistance, thus expanding its application in outdoor logistics, food packaging, and humid environments.

[0003] Currently, the hydrophobic coating of corrugated cardboard is mainly achieved by continuously and stably feeding the hydrophobic coating material to the coating mechanism. The coating mechanism's pick-up roller picks up the coating material from the feed trough and transfers it to the coating roller. Subsequently, the conveying mechanism feeds the corrugated cardboard to the coating roller at a constant speed. The cardboard and the coating roller make moderate contact, and the coating material is evenly transferred to the surface of the cardboard. However, after long-term use, the surface of the coating roller of existing corrugated cardboard hydrophobic coating roller coating machines suffers from different degrees of wear due to friction with the cardboard or erosion by the coating material. This results in differences in the surface roughness of the coating roller. During the coating process, the coating material adheres less in areas with severe wear and more in areas with less wear, leading to uneven coating thickness. Furthermore, the cost of replacing worn coating rollers is high, resulting in increased production costs. Therefore, a hydrophobic coating roller coating machine for corrugated cardboard is proposed to address the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, and addressing the issues that existing technologies suffer from uneven coating thickness due to differences in surface roughness caused by friction with cardboard or erosion by coatings, and the high cost of replacing worn coating rollers, thus increasing production costs, this utility model proposes a hydrophobic coating roller coating machine for corrugated cardboard.

[0005] The technical solution adopted by this utility model to solve its technical problem is: the corrugated cardboard hydrophobic coating roller coating machine of this utility model includes a conveying platform, a protective shell is provided on the conveying platform, and a first transmission component and a second transmission component are provided inside the protective shell;

[0006] The first transmission assembly includes a first support roller, a second support roller, a third support roller, and a fourth support roller rotatably installed inside the protective shell. The first transmission belt is provided on the outer side of the first support roller, the second support roller, the third support roller, and the fourth support roller, and the first transmission belt between the first support roller and the third support roller is inclined.

[0007] The second transmission assembly includes a fifth support roller, a sixth support roller, a seventh support roller, and an eighth support roller rotatably installed inside the protective shell. The outer sides of the fifth support roller, the sixth support roller, the seventh support roller, and the eighth support roller are jointly driven by a second transmission belt. The second transmission belt between the fifth support roller and the sixth support roller is diagonally inclined to the inclined end of the first transmission belt.

[0008] The No. 3 support roller is staggered between the No. 6 and No. 7 support rollers, and the No. 7 support roller is staggered between the No. 3 and No. 4 support rollers. The No. 1 transmission belt on the outer side of the No. 3 support roller is in contact with the No. 2 transmission belt between the No. 6 and No. 7 support rollers, and the No. 2 transmission belt on the outer side of the No. 7 support roller is in contact with the No. 1 transmission belt between the No. 3 and No. 4 support rollers. The overlapping section of the No. 2 transmission belt and the No. 1 transmission belt is S-shaped and reciprocates.

[0009] Preferably, the protective shell is provided with a swaying component, the working ends of the swaying component are staggered in the overlapping section of the second transmission belt and the first transmission belt, the protective shell is fixed with a first motor for driving the swaying component, and multiple limiting rollers are rotatably installed in a transverse arrangement on the inner wall of the protective shell, and the multiple limiting rollers are rotatably attached to the inner wall of the first transmission belt located between the second support roller and the fourth support roller.

[0010] Preferably, a liquid pump is fixed on the protective shell, and a liquid delivery pipe is fixedly connected to the liquid outlet end of the liquid pump. The end of the liquid delivery pipe is located inside the protective shell and is fixedly connected to a horizontal pipe. A uniformly distributed extrusion port is fixedly connected to the bottom of the horizontal pipe, and the extrusion port is laterally distributed on the inclined surface of the second transmission belt.

[0011] Preferably, a second motor is fixed on the side wall of the protective shell, and the output end of the second motor is disposed inside the protective shell and is connected to the rotation center shaft of the eighth support roller. The eighth support roller and the end of the fourth support roller are connected by gear meshing.

[0012] Preferably, the swaying assembly includes a drive shaft rotatably mounted on the protective shell, with turntables fixedly connected to both ends of the drive shaft, and eccentric shafts fixedly connected to the eccentric positions of the turntables. The drive shaft is connected to the output end of motor number one via gears.

[0013] Preferably, the swaying assembly further includes strip grooves formed on two opposite side walls of the protective shell. A connecting rod is provided on the outer side of the opening of each of the two strip grooves. Four extrusion rods are rotatably mounted between the connecting rods. The four extrusion rods are staggered at the S-shaped overlap section of the first and second transmission belts and are symmetrically distributed on the upper and lower sides of the overlap section of the third support roller.

[0014] Preferably, each of the two connecting rods has a linkage frame fixedly connected to its top end, and the two linkage frames are laterally slidably sleeved on the outside of the two eccentric shafts. Each of the two connecting rods has a sliding plate fixedly connected to its sides, and each sliding plate has a limit rod slidably provided through a hole. The ends of the limit rods are fixed to the side wall of the protective shell by a fixing plate.

[0015] Preferably, multiple corresponding support plates are fixedly connected to the opposite side of the conveying platform and the opposite side of the protective shell, and hydraulic rods are fixed between the two corresponding support plates.

[0016] The advantages of this utility model are:

[0017] 1. This utility model uses a first transmission belt and a second transmission belt with opposite transmission directions, while the overlapping section between them has the same transmission direction. The liquid is dripped at a constant speed onto the inclined surface of the pump through multiple extrusion ports. Under the transmission and extrusion of the overlapping section of the first and second transmission belts, the hydrophobic agent is squeezed multiple times to spread evenly, and the hydrophobic agent on the surface of the first transmission belt is evenly transferred to the surface of the cardboard to form a coating, which effectively reduces the equipment maintenance cost.

[0018] 2. When the eccentric shaft rotates around the eccentric position of the turntable, the linkage frame will move up and down reciprocally under the limiting action of the connecting rod. This will cause the overlapping point of the first and second transmission belts to vibrate and increase the squeezing effect, thereby improving the uniformity of the diffusion of the hydrophobic agent. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the first three-dimensional structure in this embodiment;

[0021] Figure 2 This is an enlarged schematic diagram of the main structure of the protective shell in this embodiment;

[0022] Figure 3 This is an enlarged schematic diagram of the main structure of transmission component No. 1 and transmission component No. 2 in this embodiment;

[0023] Figure 4 This is an enlarged schematic diagram of the main structure of the shaking component in this embodiment.

[0024] In the diagram: 1. Conveying platform; 11. Support plate; 12. Hydraulic rod; 13. Liquid pump; 14. Liquid delivery pipe; 15. Horizontal pipe; 16. Extrusion port; 17. Motor 1; 18. Motor 2; 19. Protective shell;

[0025] 2. Transmission assembly No. 1; 21. Transmission belt No. 1; 22. Support roller No. 1; 23. Support roller No. 2; 24. Support roller No. 3; 25. Support roller No. 4; 26. Limiting roller;

[0026] 3. Transmission assembly No. 2; 31. Transmission belt No. 2; 32. Support roller No. 5; 33. Support roller No. 6; 34. Support roller No. 7; 35. Support roller No. 8;

[0027] 4. Shaking assembly; 41. Drive shaft; 42. Turntable; 43. Eccentric shaft; 44. Linkage frame; 45. Connecting rod; 46. Extrusion rod; 47. Strip groove; 48. Sliding plate; 49. Limiting rod; 410. Fixing plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] Please see Figure 1-4 As shown, the corrugated cardboard hydrophobic coating roller coating machine includes a conveying platform 1, on which a protective shell 19 is provided, and a first transmission component 2 and a second transmission component 3 are provided inside the protective shell 19;

[0030] The first transmission assembly 2 includes a first support roller 22, a second support roller 23, a third support roller 24, and a fourth support roller 25 rotatably installed inside the protective shell 19. The first support roller 22, the second support roller 23, the third support roller 24, and the fourth support roller 25 are connected by a first transmission belt 21 on their outer sides, and the first transmission belt 21 between the first support roller 22 and the third support roller 24 is inclined.

[0031] The second transmission assembly 3 includes a fifth support roller 32, a sixth support roller 33, a seventh support roller 34, and an eighth support roller 35 rotatably installed inside the protective shell 19. The outer sides of the fifth support roller 32, the sixth support roller 33, the seventh support roller 34, and the eighth support roller 35 are jointly driven by a second transmission belt 31, and the second transmission belt 31 between the fifth support roller 32 and the sixth support roller 33 is diagonally inclined to the inclined end of the first transmission belt 21.

[0032] The No. 3 support roller 24 is staggered between the No. 6 support roller 33 and the No. 7 support roller 34, and the No. 7 support roller 34 is staggered between the No. 3 support roller 24 and the No. 4 support roller 25. The No. 1 transmission belt 21 on the outside of the No. 3 support roller 24 is in contact with the No. 2 transmission belt 31 between the No. 6 support roller 33 and the No. 7 support roller 34. The No. 2 transmission belt 31 on the outside of the No. 7 support roller 34 is in contact with the No. 1 transmission belt 21 between the No. 3 support roller 24 and the No. 4 support roller 25. The overlapping section of the No. 2 transmission belt 31 and the No. 1 transmission belt 21 is S-shaped and reciprocates.

[0033] The protective shell 19 is provided with a swaying component 4. The working ends of the swaying component 4 are staggered in the overlapping section of the second transmission belt 31 and the first transmission belt 21. The protective shell 19 is fixed with a first motor 17 for driving the swaying component 4. Multiple limiting rollers 26 are horizontally arranged and rotatably installed on the inner wall of the protective shell 19. The multiple limiting rollers 26 are rotatably attached to the inner wall of the first transmission belt 21 located between the second support roller 23 and the fourth support roller 25.

[0034] A liquid pump 13 is fixed on the protective shell 19. A liquid delivery pipe 14 is fixedly connected to the liquid outlet end of the liquid pump 13. The end of the liquid delivery pipe 14 is located inside the protective shell 19 and is fixedly connected to a horizontal pipe 15. An evenly distributed extrusion port 16 is fixedly connected to the bottom of the horizontal pipe 15, and the extrusion port 16 is laterally distributed on the inclined surface of the second transmission belt 31.

[0035] A second motor 18 is fixed on the side wall of the protective shell 19, and the output end of the second motor 18 is installed inside the protective shell 19 and is connected to the rotation center shaft of the eighth support roller 35. The eighth support roller 35 and the end of the fourth support roller 25 are connected by gear meshing.

[0036] The shaking assembly 4 includes a drive shaft 41 rotatably mounted on the protective shell 19. Both ends of the drive shaft 41 are fixedly connected to turntables 42. An eccentric shaft 43 is fixedly connected to the eccentric position of each turntable 42. The drive shaft 41 is connected to the output end of the No. 1 motor 17 via gears.

[0037] The swaying assembly 4 also includes strip grooves 47 formed on two opposite side walls of the protective shell 19. A connecting rod 45 is provided on the outer side of the opening of each of the two strip grooves 47. Four extrusion rods 46 are rotatably mounted between the connecting rods 45. The four extrusion rods 46 are staggered at the S-shaped overlapping section of the first transmission belt 21 and the second transmission belt 31, and are symmetrically distributed on the upper and lower sides of the overlapping section of the third support roller 24.

[0038] Both of the connecting rods 45 are fixedly connected to the top of a linkage frame 44, and both linkage frames 44 are laterally slidably sleeved on the outside of the two eccentric shafts 43. Both sides of the connecting rods 45 are fixedly connected to sliding plates 48, and each sliding plate 48 is slidably provided with a limit rod 49 through a hole. The ends of the limit rods 49 are fixed to the side wall of the protective shell 19 by a fixing plate 410.

[0039] Multiple support plates 11 are fixedly connected to the opposite side of the conveying platform 1 and the opposite side of the protective shell 19, and hydraulic rods 12 are fixed between the two corresponding support plates 11.

[0040] During operation, existing corrugated cardboard hydrophobic coating roller coating machines suffer from uneven wear on different parts of the coating roller surface due to friction with the cardboard or coating erosion after long-term use. This results in inconsistent surface roughness of the coating rollers, leading to uneven coating thickness in areas of severe wear and more coating in areas of less wear. Furthermore, replacing worn coating rollers is expensive, increasing production costs. In this solution, the operation of motor 18 is controlled. Motor 18, through the rotation of support roller 35, and driven by transmission belt 31, propels support rollers 35, 5, 6, 7, and 8. The outer side of the support roller 35 is subjected to cyclic transmission. The third support roller 24 is staggered and positioned under the compression support of the sixth and seventh support rollers 33 and 34. The second transmission belt 31 forms a first recess between the sixth and seventh support rollers 33 and 34. Under the synchronous transmission of gears, the fourth and eighth support rollers 25 and the first and second transmission belts 31 have opposite transmission directions, while the overlapping section between them has the same transmission direction. This drives the first transmission belt 21 to circulate and transmit power on the outer side of the first, second, third, and fourth support rollers 22 and 23, while the seventh support roller 34 is staggered and positioned under the compression support of the sixth and seventh support rollers 33 and 34. Between support rollers 24 and 25, a second recess is formed by the compression and support of the first transmission belt 21 located between support rollers 24 and 25 by support roller 34. The second recess formed by the first transmission belt 21 and the first recess formed by the second transmission belt 31 are misaligned and interlocked, and the first and second interlocking parts are synchronously driven and attached. By controlling the operation of the pump 13, the hydrophobic agent is pumped into the horizontal tube 15 and dripped uniformly onto the inclined surface of the pump 13 through multiple extrusion ports 16. Under the synchronous downward transmission action of the second transmission belt 31 and the first transmission belt 21, the hydrophobic agent will fall onto the second transmission belt 31. The hydrophobic agent is conveyed to the overlapping section between the first transmission belt 21 and the second transmission belt 31 and gradually conveyed downwards. Under the compression of the overlapping section of the first transmission belt 21 and the second transmission belt 31, the hydrophobic agent will be squeezed multiple times to spread evenly. At this time, the conveying platform 1 conveys the cardboard through the horizontal section between the fourth support roller 25 and the second support roller 23 of the first transmission belt 21, and evenly transfers the hydrophobic agent on the surface of the first transmission belt 21 to the surface of the cardboard to form a coating. This effectively avoids uneven coating of the hydrophobic agent caused by the wear of the coating roller. Moreover, compared with the replacement of the coating roller, the replacement cost of the first transmission belt 21 and the second transmission belt 31 is lower, which effectively reduces the equipment maintenance cost.

[0041] By controlling the operation of motor 17, motor 17 drives two turntables 42 to rotate. When turntables 42 rotate, they drive eccentric shaft 43 to rotate at its eccentric position. When eccentric shaft 43 rotates around the eccentric position of turntable 42, it drives linkage frame 44 to move up and down reciprocally under the limiting action of connecting rod 45. When the two connecting rods 45 move up and down reciprocally in sync, they drive four extrusion rods 46 to reciprocate and extrude at the intersection of transmission belt 21 and transmission belt 31. This causes vibration at the intersection of transmission belt 21 and transmission belt 31 while increasing the extrusion effect, thereby improving the uniformity of hydrophobic agent diffusion and thus improving the uniformity of hydrophobic layer transfer on paperboard. When connecting rod 45 moves back and forth, it drives sliding plate 48 to slide on limiting rod 49 to improve the stability of equipment operation.

[0042] It achieves the effect of uniformly coating the hydrophobic layer of corrugated cardboard, and has lower equipment maintenance costs. Compared with traditional roller coating machines, it has better coating uniformity.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A hydrophobic coating roller coating machine for corrugated cardboard, characterized in that: It includes a conveying platform (1), on which a protective shell (19) is provided, and a first transmission component (2) and a second transmission component (3) are provided inside the protective shell (19). The first transmission assembly (2) includes a first support roller (22), a second support roller (23), a third support roller (24), and a fourth support roller (25) rotatably installed inside the protective shell (19). A first transmission belt (21) is provided on the outer side of the first support roller (22), the second support roller (23), the third support roller (24), and the fourth support roller (25), and the first transmission belt (21) between the first support roller (22) and the third support roller (24) is inclined. The second transmission assembly (3) includes a fifth support roller (32), a sixth support roller (33), a seventh support roller (34), and an eighth support roller (35) rotatably installed inside the protective shell (19). The outer sides of the fifth support roller (32), the sixth support roller (33), the seventh support roller (34), and the eighth support roller (35) are jointly driven by a second transmission belt (31). The second transmission belt (31) between the fifth support roller (32) and the sixth support roller (33) is diagonally inclined to the inclined end of the first transmission belt (21). The No. 3 support roller (24) is staggered between the No. 6 support roller (33) and the No. 7 support roller (34), and the No. 7 support roller (34) is staggered between the No. 3 support roller (24) and the No. 4 support roller (25). The No. 1 transmission belt (21) on the outside of the No. 3 support roller (24) is in contact with the No. 2 transmission belt (31) between the No. 6 support roller (33) and the No. 7 support roller (34). The No. 2 transmission belt (31) on the outside of the No. 7 support roller (34) is in contact with the No. 1 transmission belt (21) between the No. 3 support roller (24) and the No. 4 support roller (25). The overlapping section of the No. 2 transmission belt (31) and the No. 1 transmission belt (21) is S-shaped and reciprocating.

2. The corrugated cardboard hydrophobic coating roller coating machine according to claim 1, characterized in that: The protective shell (19) is provided with a swaying component (4). The working ends of the swaying component (4) are staggered in the overlapping section of the second transmission belt (31) and the first transmission belt (21). The protective shell (19) is fixed with a first motor (17) for driving the swaying component (4). Multiple limiting rollers (26) are rotatably installed in a horizontal arrangement on the inner wall of the protective shell (19). The multiple limiting rollers (26) are rotatably attached to the inner wall of the first transmission belt (21) located between the second support roller (23) and the fourth support roller (25).

3. The corrugated cardboard hydrophobic coating roller coating machine according to claim 1, characterized in that: A liquid pump (13) is fixed on the protective shell (19). A liquid delivery pipe (14) is fixed to the liquid outlet end of the liquid pump (13). The end of the liquid delivery pipe (14) is set inside the protective shell (19) and fixed to a horizontal pipe (15). A uniformly distributed extrusion port (16) is fixed to the bottom of the horizontal pipe (15), and the extrusion port (16) is laterally distributed on the inclined surface of the second transmission belt (31).

4. The corrugated cardboard hydrophobic coating roller coating machine according to claim 1, characterized in that: A second motor (18) is fixed on the side wall of the protective shell (19), and the output end of the second motor (18) is installed inside the protective shell (19) and is connected to the rotation center shaft of the eighth support roller (35). The eighth support roller (35) and the end of the fourth support roller (25) are connected by gear meshing.

5. The corrugated cardboard hydrophobic coating roller coating machine according to claim 2, characterized in that: The shaking assembly (4) includes a drive shaft (41) rotatably mounted on a protective shell (19). Both ends of the drive shaft (41) are fixedly connected to turntables (42). An eccentric shaft (43) is fixedly connected to the eccentric position of each turntable (42). The drive shaft (41) is connected to the output end of the No. 1 motor (17) via gears.

6. The corrugated cardboard hydrophobic coating roller coating machine according to claim 2, characterized in that: The swaying assembly (4) also includes strip grooves (47) on two opposite side walls of the protective shell (19). A connecting rod (45) is provided on the outer side of the opening of each of the two strip grooves (47). Four extrusion rods (46) are rotatably mounted between the connecting rods (45). The four extrusion rods (46) are staggered at the S-shaped overlapping section of the first transmission belt (21) and the second transmission belt (31), and are symmetrically distributed on the upper and lower sides of the overlapping section of the third support roller (24).

7. The corrugated cardboard hydrophobic coating roller coating machine according to claim 6, characterized in that: Both of the connecting rods (45) are fixedly connected to the top of the two connecting rods (45), and both connecting rods (44) are slidably sleeved on the outside of the two eccentric shafts (43). Both sides of the connecting rods (45) are fixedly connected to sliding plates (48). Limiting rods (49) are slidably provided on the sliding plates (48) through holes. The ends of the limiting rods (49) are fixed to the side wall of the protective shell (19) through fixing plates (410).

8. The corrugated cardboard hydrophobic coating roller coating machine according to claim 1, characterized in that: Multiple support plates (11) are fixedly connected to the opposite side of the conveying platform (1) and the opposite side of the protective shell (19), and hydraulic rods (12) are fixed between the two corresponding support plates (11) above and below.

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