Leather double-sided coating equipment

Abstract

The utility model provides leather double-sided coating equipment which comprises a coating box and a liquid storage box, a feeding roller and a receiving roller are arranged in the coating box, a guide roller is arranged on the inner side wall of the coating box, coating devices are arranged on the coating box, the coating devices are divided into an upper group and a lower group, each group of coating device comprises two coating boxes and two coating rollers, and the two coating boxes are connected with the liquid storage box. A second fixing plate is arranged on the outer side wall of the coating box, a third rotating motor is fixedly arranged on the second fixing plate, one end of one coating roller penetrates through the side wall of the coating box and then is fixedly connected with the output end of the third rotating motor, and a second driving chain wheel is fixedly arranged at the end of the coating roller fixedly connected with the output end of the third rotating motor; a second driven chain wheel is fixedly arranged at the end part of the other coating roller; and a second transmission chain is meshed on the second driving chain wheel and the second driven chain wheel. The leather coating equipment is used for solving the technical problems that the existing leather coating equipment in the background technology can only coat a single surface of leather, the phenomenon that the interiors of textures on the surface of the leather are not coated is easily caused, and the leather is cracked.

Description

Technical Field

[0001] This utility model relates to the field of leather processing technology, and in particular to a leather double-sided coating device. Background Technology

[0002] Leather is animal hide that has undergone physical and chemical processing, such as hair removal and tanning, and is no longer prone to decay. It is made of natural protein fibers tightly woven in three-dimensional space, forming a special grain layer on its surface, exhibiting a natural texture and luster, while also having a comfortable feel. Coating is the process of applying a substance to the surface of an object to enhance its resistance to corrosion, scratches, and the adhesion of ink printing. It is a coating method that uses a spray gun or disc atomizer to disperse the substance into uniform and fine droplets using pressure or centrifugal force, and then applies it to the surface of the object being coated. It can be divided into air spraying, airless spraying, electrostatic spraying, and various derivative methods of the above basic spraying forms, such as high-flow-rate low-pressure atomization spraying, thermal spraying, automatic spraying, and multi-group spraying.

[0003] The existing patent with authorization announcement number CN 216063957 U, entitled "A Simulated Leather Slurry Coating Device Based on Roller Coating Process", discloses a simulated leather slurry coating device based on roller coating process, including a coating roller and a pair of substrates. The two ends of the coating roller are connected to the top position of the inner end face of the substrate. A bottom plate is provided at the bottom position between the substrates. An assembly rod is provided on the upper end face of the substrate. An upper roller is provided between the assembly rods. A lower roller is provided between the substrates below the coating roller. An arc-shaped plate is provided on the inner end face of the substrate above the coating roller. An adjustable arc-shaped moving plate is provided in front of the arc-shaped plate.

[0004] The leather coating equipment in the aforementioned patent can only coat one side of the leather, which can easily result in the leather surface texture not being coated, causing uneven surface strength on both sides of the leather and leading to cracking. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a double-sided leather coating device, which solves the technical problem mentioned in the background art that existing leather coating devices can only coat one side of the leather, easily resulting in the phenomenon that the leather surface texture is not coated, causing uneven surface strength on both sides of the leather and leading to cracking.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a double-sided leather coating device, comprising a coating box and a liquid storage box, wherein the liquid storage box is fixedly mounted on the top of the coating box, and a feeding roller and a receiving roller are rotatably mounted on the inner side wall of the coating box, wherein the feeding roller is located below the receiving roller, and two guide rollers corresponding to the heights of the feeding roller and the receiving roller are also rotatably mounted on the inner side wall of the coating box, wherein a coating device is provided between each guide roller and a feeding roller or receiving roller of the same height, wherein the coating device comprises two sets, upper and lower, each set of the coating device comprising two paint tanks and two coating rollers, wherein the top of the paint tank is open, and so on. The coating tank is connected to a conveying pipe, which is connected to a storage tank. A second fixing plate is provided on the outer wall of the coating tank, and a third rotating motor is fixed on the second fixing plate. One end of the coating roller is rotatably connected to the side wall of the coating tank. One end of one of the coating rollers passes through the side wall of the coating tank and is fixedly connected to the output end of the third rotating motor. A second driving sprocket is fixedly provided at the end of the coating roller fixed to the output end of the third rotating motor, and a second driven sprocket is fixedly provided at the end of the other coating roller. A second transmission chain meshes with the second driving sprocket and the second driven sprocket. The two sets of coating rollers are used to coat both sides of the leather respectively.

[0007] Working principle: When using this double-sided leather coating equipment, technicians inject the liquid slurry from the storage tank into the coating tank through the delivery pipe, ensuring that the liquid slurry in the coating tank is absorbed by the coating roller. The leather then passes from the feed roller to the coating roller below. At this point, the technician starts the third rotating motor, causing the output shaft of the third rotating motor to drive one of the coating rollers in the lower coating device to rotate. This, in turn, drives the other coating roller to rotate via the second driving sprocket, the second driven sprocket, and the second transmission chain, dyeing one side of the leather. The leather then passes through the guide roller and the upper coating roller, causing the third rotating motor above to drive one of the coating rollers in the upper coating device to rotate. This, in turn, drives the other coating roller to rotate via the second driving sprocket, the second driven sprocket, and the second transmission chain, dyeing the other side of the leather. Finally, the double-sided coated leather is wound up by the take-up roller.

[0008] Beneficial effects: Through the above scheme, the upper and lower coating devices can coat both sides of the leather, which improves the coating efficiency of the leather and ensures that both sides of the leather are coated, thus ensuring uniform strength of the leather and preventing cracking caused by uneven coating during subsequent processing and use.

[0009] The present invention is further configured such that: a first fixing plate is fixed on the outer wall of the coating box, a second rotating motor is fixed on the first fixing plate, one end of the feeding roller passes through the coating box and is fixedly connected to the output shaft of the second rotating motor, a first driving sprocket is fixed at the end of the feeding roller, a first driven sprocket is fixed at the end of the receiving roller, and a first transmission chain meshes on the first driving sprocket and the first driven sprocket.

[0010] By adopting the above technical solution: the technician starts the second rotating motor, which causes the output shaft of the second rotating motor to rotate, driving the feeding roller to rotate, and then driving the first drive sprocket to rotate, which in turn drives the first transmission chain to rotate, thereby driving the first driven sprocket and the receiving roller to rotate, thus enabling the leather to move in the coating box.

[0011] The present invention is further configured such that: a third fixing plate is provided on the outer wall of the coating box, a fourth rotating motor is fixedly mounted on the third fixing plate, one end of one of the guide rollers passes through the coating box and is fixedly connected to the output shaft of the fourth rotating motor, a third driving sprocket is fixedly mounted at the end of the guide roller fixedly connected to the output shaft of the fourth rotating motor, a third driven sprocket is fixedly mounted at the end of the other guide roller, and a third transmission chain is sleeved on the ends of the two guide rollers.

[0012] By adopting the above technical solution: during the coating process, the technician starts the fourth rotating motor, which causes the output shaft of the fourth rotating motor to rotate, thereby driving the guide roller connected to it to rotate, then driving the third driving sprocket and the third transmission chain to rotate, thereby causing the third driven sprocket to rotate, and then causing another guide roller to rotate. The two guide rollers guide and flip the leather, so that both sides of the leather can be coated.

[0013] The present invention is further configured such that: a first rotating motor is provided at the end of the liquid storage tank, a first rotating motor output shaft is fixed on the first rotating motor, and a plurality of stirring rods are fixed on the first rotating motor output shaft.

[0014] By adopting the above technical solution: when technicians use the double-sided leather coating equipment, they start the first rotating motor, which drives the output shaft of the first rotating motor to rotate, and at the same time drives the stirring rod to rotate, stirring the slurry inside the storage tank to keep the slurry uniform.

[0015] The present invention is further configured such that: two mounting plates are provided on the side wall of the coating box, and brushes are provided on the mounting plates. The ends of the two brushes respectively abut against two different surfaces of the leather, and the leather comes into contact with the coating roller after passing through the brushes.

[0016] By adopting the above technical solution, the ends of the two brushes contact the two surfaces of the leather, which can clean the dust and impurities on the leather surface before the coating roller coats the leather, thus avoiding any impact on the coating effect.

[0017] The present invention is further configured such that a sponge is adhered to the outside of the coating roller.

[0018] By adopting the above technical solution, the sponge can absorb the slurry in the paint box, and when the sponge is pressed against the leather, it can better coat the leather and enhance the coating effect.

[0019] The present invention is further configured such that a protective plate is laid at the bottom of the coating box.

[0020] By adopting the above technical solution, the slurry may drip into the coating box during the coating process. By laying a protective plate, the coating box can be protected and contamination can be avoided.

[0021] The present invention is further configured such that: the coating box is provided with an inspection door, the inspection door is fixedly provided with a handle, and the coating box is provided with a control panel.

[0022] By adopting the above technical solution, technicians can open the inspection door by pulling the handle to inspect the components inside the coating box and observe the working status. Technicians can also operate the coating box through the control panel. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the back structure of the coating box according to an embodiment of the present invention;

[0025] Figure 3 This is a front structural diagram of the coating box according to an embodiment of the present invention.

[0026] In the above attached figures: 1. Coating tank; 2. Liquid storage tank; 3. Output shaft of the first rotary motor; 4. Stirring rod; 5. First rotary motor; 6. Conveying pipe; 7. Coating tank; 8. Discharge roller; 9. Receiving roller; 10. Second rotary motor; 11. First transmission chain; 12. Mounting plate; 13. Brush; 14. Coating roller; 15. Sponge; 16. Third rotary motor; 17. Second transmission chain; 18. Control panel; 19. Guide roller; 20. Fourth rotary motor; 21. Third transmission chain; 22. Protective plate; 23. Leather; 24. Inspection door; 25. Handle; 26. First driven sprocket; 27. Second driven sprocket; 28. Third driven sprocket; 29. ​​First fixing plate; 30. Second fixing plate; 31. Third fixing plate. Detailed Implementation

[0027] Example:

[0028] like Figure 1 , Figure 2 and Figure 3 As shown: A leather double-sided coating device includes a coating tank 1 and a liquid storage tank 2. The liquid storage tank 2 is installed on the top of the coating tank 1. The coating tank 1 is provided with an inspection door 24, and a handle 25 is welded to the inspection door 24. The coating tank 1 is electrically connected to a control panel 18. A protective plate 22 is laid on the bottom of the coating tank 1. A first rotating motor 5 is installed at the end of the liquid storage tank 2. The first rotating motor 5 is provided with a first rotating motor output shaft 3, and several stirring rods 4 are welded to the first rotating motor output shaft 3.

[0029] like Figure 1 and Figure 2 As shown: A feeding roller 8 and a receiving roller 9 are rotatably mounted on the inner wall of the coating box 1. The feeding roller 8 is located below the receiving roller 9. A first fixing plate 29 is welded to the outer wall of the coating box 1. A second rotating motor 10 is mounted on the first fixing plate 29. One end of the feeding roller 8 passes through the coating box 1 and is welded to the output shaft of the second rotating motor 10. A first driving sprocket is welded to the end of the feeding roller 8. A first driven sprocket 26 is welded to the end of the receiving roller 9. A first transmission chain 11 meshes with the first driving sprocket and the first driven sprocket 26.

[0030] like Figure 1 and Figure 2 As shown: Two guide rollers 19 are rotatably mounted on the inner wall of the coating box 1, corresponding to the heights of the feeding roller 8 and the receiving roller 9 respectively. A third fixing plate 31 is welded to the outer wall of the coating box 1. A fourth rotating motor 20 is mounted on the third fixing plate 31. One end of one of the guide rollers 19 passes through the coating box 1 and is welded to the output shaft of the fourth rotating motor 20. A third driving sprocket is welded to the end of the guide roller 19 welded to the output shaft of the fourth rotating motor 20. A third driven sprocket 28 is welded to the end of the other guide roller 19. A third transmission chain 21 is sleeved on the ends of the two guide rollers 19.

[0031] like Figure 1 and Figure 2As shown: Each guide roller 19 is equipped with a coating device between itself and the feed roller 8 or take-up roller 9 of the same height. The coating device consists of two sets, upper and lower. Each set of coating devices includes two paint tanks 7 and two coating rollers 14. Sponge 15 is bonded to the outside of the coating rollers 14. The top of the paint tank 7 is open, and a conveying pipe 6 is connected to the paint tank 7. The conveying pipe 6 is connected to the liquid storage tank 2. A second fixing plate 30 is welded to the outer wall of the coating tank 1. A third rotating motor 16 is installed on the second fixing plate 30. One end of the coating roller 14 is rotatably connected to the side wall of the coating tank 1. One end of one coating roller 14 passes through the side wall of the coating tank 1 and is welded to the output end of the third rotating motor 16. A second driving sprocket is welded to the end of the coating roller 14 welded to the output end of the third rotating motor 16. A second driven sprocket 27 is welded to the end of the other coating roller 14. A second transmission chain 17 meshes with the second driving sprocket and the second driven sprocket 27. The two sets of coating rollers 14 are used to coat both sides of the leather 23 respectively.

[0032] like Figure 1 and Figure 2 As shown: Two mounting plates 12 are welded on the side wall of the coating box 1. Brushes 13 are mounted on the mounting plates 12. The ends of the two brushes 13 respectively abut against two different surfaces of the leather 23. After passing through the brushes 13, the leather 23 comes into contact with the coating roller 14.

[0033] Working principle: When using this double-sided leather coating equipment, the technician starts the first rotating motor 5, which drives the output shaft 3 to rotate, simultaneously rotating the stirring rod 4 to stir the slurry inside the storage tank 2, keeping the slurry uniform. Then, the liquid slurry in the storage tank 2 is injected into the coating tank 7 through the conveying pipe 6, allowing the liquid slurry in the coating tank 7 to be picked up by the coating roller 14. When the leather 23 passes through the lower brush 13, the end of the lower brush 13 contacts one of the surfaces of the leather 23, enabling the coating roller 14 to coat the leather 23. First, the dust and impurities on the surface of the leather 23 are cleaned. Then, the leather 23 passes from the feeding roller 8 through the coating roller 14 below. The technician starts the second rotary motor 10, causing the output shaft of the second rotary motor 10 to rotate, which drives the feeding roller 8 to rotate, and then drives the first drive sprocket to rotate, which in turn drives the first transmission chain 11 to rotate, which in turn drives the first driven sprocket 26 and the receiving roller 9 to rotate, thus allowing the leather 23 to move in the coating box 1. At this time, the technician starts the third rotary motor 16, causing the output shaft of the third rotary motor 16 below to drive the coating device in the lower set of coating devices. One of the coating rollers 14 rotates, which in turn drives the other coating roller 14 to rotate via the second drive sprocket, the second driven sprocket 27, and the second transmission chain 17 below, dyeing one side of the leather 23. During the coating process, the technician starts the fourth rotary motor 20, causing the output shaft of the fourth rotary motor 20 to rotate, which in turn drives the guide roller 19 connected to it to rotate, then drives the third drive sprocket and the third transmission chain 21 to rotate, which in turn drives the third driven sprocket 28 to rotate, which in turn drives the other guide roller 19 to rotate. The two guide rollers 19 guide and flip the leather 23, and the leather 23 passes through the upper... When the brush 13 is in contact with the other surface of the leather 23, the end of the upper brush 13 contacts the other surface of the leather 23, which can clean the dust and impurities on the surface of the leather 23 before the coating roller 14 coats the other side of the leather 23. Then the coating roller 14 above the leather 23 causes the third rotating motor 16 above to drive one of the coating rollers 14 in the upper set of coating devices to rotate. Then, through the second driving sprocket, the second driven sprocket 27 and the second transmission chain 17 above, another coating roller 14 is driven to rotate to dye the other side of the leather 23. Finally, the leather 23 after double coating is rolled up by the take-up roller 9.

[0034] During the coating process, the slurry may drip into the coating box 1. By laying the protective plate 22, the coating box 1 can be protected to avoid contamination. Technicians can open the inspection door 24 by pulling the handle 25 to inspect the components inside the coating box 1 and observe the working status. Technicians can operate the coating box 1 through the control panel 18.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A leather double-sided coating device, comprising a coating tank (1) and a liquid storage tank (2), wherein the liquid storage tank (2) is fixedly disposed on the top of the coating tank (1), characterized in that: The coating box (1) has a feeding roller (8) and a receiving roller (9) rotatably mounted on its inner wall. The feeding roller (8) is located below the receiving roller (9). The coating box (1) also has two guide rollers (19) rotatably mounted on its inner wall, which correspond to the heights of the feeding roller (8) and the receiving roller (9), respectively. Each guide roller (19) is connected to a feeding roller (8) or a receiving roller (9) at the same height. The coating devices are arranged in two sets, upper and lower. Each set of coating devices includes two paint tanks (7) and two coating rollers (14). The paint tanks (7) have an opening at the top and are connected to a conveying pipe (6). The conveying pipe (6) is connected to a liquid storage tank (2). The coating box (1) is located outside the outer wall. A second fixing plate (30) is provided on the side wall, and a third rotating motor (16) is fixed on the second fixing plate (30). One end of the coating roller (14) is rotatably connected to the side wall of the coating box (1). One end of one of the coating rollers (14) passes through the side wall of the coating box (1) and is fixed to the output end of the third rotating motor (16). The end of the coating roller (14) fixed to the output end of the third rotating motor (16) is fixed with a second driving sprocket. The end of the other coating roller (14) is fixed with a second driven sprocket (27). A second transmission chain (17) meshes with the second driving sprocket and the second driven sprocket (27). The two sets of coating rollers (14) are used to coat both sides of the leather (23).

2. The leather double-sided coating equipment according to claim 1, characterized in that: A first fixing plate (29) is fixed on the outer wall of the coating box (1), and a second rotating motor (10) is fixed on the first fixing plate (29). One end of the feeding roller (8) passes through the coating box (1) and is fixedly connected to the output shaft of the second rotating motor (10). A first driving sprocket is fixed at the end of the feeding roller (8), and a first driven sprocket (26) is fixed at the end of the receiving roller (9). A first transmission chain (11) meshes on the first driving sprocket and the first driven sprocket (26).

3. The leather double-sided coating equipment according to claim 1, characterized in that: A third fixing plate (31) is provided on the outer wall of the coating box (1). A fourth rotating motor (20) is fixed on the third fixing plate (31). One end of one guide roller (19) passes through the coating box (1) and is fixedly connected to the output shaft of the fourth rotating motor (20). A third driving sprocket is fixedly provided at the end of the guide roller (19) fixedly connected to the output shaft of the fourth rotating motor (20). A third driven sprocket (28) is fixedly provided at the end of the other guide roller (19). A third transmission chain (21) is sleeved on the ends of the two guide rollers (19).

4. The leather double-sided coating equipment according to claim 1, characterized in that: The liquid storage tank (2) is provided with a first rotating motor (5) at its end. The first rotating motor (5) is fixed with a first rotating motor output shaft (3), and a plurality of stirring rods (4) are fixed on the first rotating motor output shaft (3).

5. The leather double-sided coating equipment according to claim 3, characterized in that: The coating box (1) has two mounting plates (12) on its side wall. The mounting plates (12) are equipped with brushes (13). The ends of the two brushes (13) respectively abut against two different surfaces of the leather (23). After passing through the brushes (13), the leather (23) comes into contact with the coating roller (14).

6. The leather double-sided coating equipment according to claim 3, characterized in that: The coating roller (14) is bonded with a sponge (15).

7. The leather double-sided coating equipment according to claim 1, characterized in that: The bottom of the coating box (1) is covered with a protective plate (22).

8. The leather double-sided coating equipment according to claim 1, characterized in that: The coating box (1) is provided with an inspection door (24), and a handle (25) is fixed on the inspection door (24). The coating box (1) is provided with a control panel (18).

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