Film pressing device for paper labels and using method of film pressing device

Abstract

The invention belongs to the technical field of film pressing devices, and discloses a film pressing device for paper labels and a using method thereof.The film pressing device comprises a base, a conveying belt is installed in the base, a label body is arranged at the top end of the conveying belt, a film covering roller and a film pressing roller are arranged above the label body, and the film covering roller and the film pressing roller are both installed at the top end of the base; a rack is fixedly connected to the top end of the base, an air cylinder is fixedly installed at the bottom end of the rack, a cutting knife is connected to the bottom end of the air cylinder, a cleaning assembly is arranged at one end of the cutting knife, the cleaning assembly comprises a cleaning seat arranged at one end of the cutting knife, and a scraping plate is fixedly installed at the top end of the cleaning seat. The cleaning base is controlled to move to drive the scraping plate to move, the scraping plate slides on the outer wall of the bottom end of the cutting knife, glue adhering to the surface of the cutting knife is scraped away, the situation that the cutting effect and the attractiveness of a finished label product are affected due to the fact that glue adheres to the surface of the cutting knife is prevented, and the cutting effect of the label and the attractiveness of the finished label product are improved through cleaning of the cutting knife.

Description

Technical Field

[0001] The invention belongs to the technical field of laminating devices, and in particular relates to a laminating device for paper labels and a use method thereof. Background Art

[0002] Lamination device is a kind of equipment widely used in industrial production, such as packaging machinery, printing equipment, automatic production line, etc. In the field of printing, lamination device is used to press printed paper or film material with another material to form a printed product with specific functions;

[0003] After searching, such as patent: CN221476143U, a laminating structure for a self-adhesive label, including a base and a self-adhesive label body, and also including: a laminating mechanism for laminating the self-adhesive label body; a conveying mechanism for moving the self-adhesive label body; a cutting mechanism, the cutting mechanism including a cutting roller, the top of the base is provided with two symmetrically distributed first mounting blocks, a rotating disk is rotatably connected between the two mounting blocks, and the same rotating shaft is fixedly connected between the two rotating disks, a circular hole is opened at the central axis of the cutting roller, the rotating shaft is inserted into the circular hole, a sliding groove is opened on the circumferential outer wall of the rotating shaft, and a convex block is arranged on the circumferential inner wall of the circular hole, which has the effect of automatically cutting the self-adhesive label body after laminating, saving manpower and reducing labor costs;

[0004] After the label lamination is completed, the current laminating device cuts the finished product with a cutting knife. However, since the glue of the self-adhesive label usually has a certain viscosity, during the cutting process, the glue will contact and adhere to the surface of the cutting knife, which will not only affect the subsequent cutting effect, but also reduce the appearance of the finished label. Summary of the invention

[0005] The object of the present invention is to provide a laminating device for paper labels and a method of using the same, so as to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laminating device for paper labels, comprising a base, a conveyor belt is installed inside the base, a label body is arranged at the top of the conveyor belt, a laminating roller and a laminating roller are arranged above the label body, the laminating roller and the laminating roller are both installed at the top of the base, the top of the base is fixedly connected to a frame, the bottom of the frame is fixedly installed with a cylinder, the bottom of the cylinder is connected to a cutting knife, and one end of the cutting knife is provided with a cleaning component;

[0007] Among them, the cleaning assembly includes a cleaning seat arranged at one end of the cutting knife, one side of the cleaning seat is slidably connected with a connecting rod, the connecting rod is fixedly installed inside the frame, the inside of the connecting rod is rotatably connected with a first threaded rod, the first threaded rod is embedded in the cleaning seat, one end of the first threaded rod is installed with a motor, and the top of the cleaning seat is fixedly installed with a scraper.

[0008] As a further technical solution of the present invention, a cleaning box is provided on one side of the scraper, the cleaning box is fixedly mounted on the top of the cleaning seat, cleaning cotton is installed on the inner wall of the cleaning box, and an auxiliary cleaning component is arranged inside the cleaning box.

[0009] As a further technical solution of the present invention, the auxiliary cleaning component includes a connecting plate arranged inside the cleaning box, and two connecting plates are symmetrically arranged. The side walls of the two connecting plates are fixedly connected with blocking blocks, and the blocking blocks are evenly distributed. The blocking blocks are embedded in the liquid outlet, and the liquid outlet is opened in the cleaning box. A slider is fixedly installed on the top of the connecting plate, and a moving rod is fixedly installed inside the slider. A wedge is fixedly connected to one side of the slider, and a fixing rod is arranged on one side of the wedge. The fixing rod is fixedly installed on the bottom end of the fixing plate, and the fixing plate is fixedly installed inside the frame.

[0010] As a further technical solution of the present invention, the slider is slidably installed inside the cleaning box, and a spring is provided on one side of the slider.

[0011] As a further technical solution of the present invention, an airbag is installed inside the cleaning box, and a booster component is arranged inside the cleaning box.

[0012] As a further technical solution of the present invention, the booster assembly includes an air pipe opened inside the cleaning box, the top end of the air pipe is connected to the interior of the airbag, a piston rod is slidably installed inside the air pipe, the internal thread of the piston rod is connected to a second threaded rod, a second bevel gear is fixedly installed on the outer wall of the second threaded rod, the top end of the second bevel gear is meshingly connected to the first bevel gear, a rotating shaft is fixedly installed on the top end of the first bevel gear, a disc is fixedly installed on the top end of the rotating shaft, a sliding rod is fixedly installed on the top end of the disc, a limiting ring is provided on the outer wall of the sliding rod, and the limiting ring is fixedly installed on one end of the moving rod.

[0013] As a further technical solution of the present invention, the sliding rod is slidably installed inside the limiting ring.

[0014] As a further technical solution of the present invention, a rotating block is fixedly mounted on one end of the second threaded rod, and the rotating block is arranged on one side of the cleaning box.

[0015] As a further technical solution of the present invention, a liquid adding tube is fixedly connected to the side wall of the cleaning box, and a liquid adding plug is embedded in the top end of the liquid adding tube.

[0016] A method for using a laminating device for paper labels comprises the following steps:

[0017] S1: When laminating a paper label, first place the paper label on the top of the label body, and laminate it through the cooperation of the laminating roller and the laminating roller. After laminating, the paper label is transported to one side of the frame;

[0018] S2: Then the cylinder drives the cutting knife to press down and cut the laminated paper label to divide it into labels with equal distance;

[0019] S3: When cleaning the cutting blade, the cleaning box is controlled to drive the first threaded rod to rotate, the rotation of the first threaded rod drives the cleaning seat to move, the movement of the cleaning seat drives the scraper to move, so that the scraper slides on the outer wall of the bottom end of the cutting blade to scrape away the glue adhered to the surface of the cutting blade;

[0020] S4: During the process of moving to clean the cutting knife, the wedge block is forced to move to the side away from the fixing rod when in contact with the fixing rod, and the movement of the wedge block drives the movement of the slider, the movement of the slider drives the movement of the connecting plate, and the movement of the connecting plate drives the movement of the blocking block, so that the blocking block slides out from the inside of the liquid outlet hole, and the cleaning liquid in the cleaning box is discharged from the liquid outlet hole and absorbed by the cleaning cotton, and the cleaning cotton wipes the surface of the cutting knife to clean it during the movement;

[0021] S5: When the slider moves, it drives the moving rod to move, the movement of the moving rod drives the movement of the limit ring, the movement of the limit ring drives the movement of the sliding rod, the movement of the sliding rod drives the rotation of the disc, the rotation of the disc drives the rotation of the rotating shaft, the rotation of the rotating shaft drives the rotation of the first bevel gear, the rotation of the first bevel gear drives the rotation of the second bevel gear, the rotation of the second bevel gear drives the rotation of the second threaded rod, the rotation of the second threaded rod drives the movement of the piston rod, so that the piston at one end of the piston rod moves in the trachea, squeezing the gas inside the trachea into the airbag, causing the airbag to expand, and maintaining a certain pressure inside the cleaning box, which helps the cleaning liquid inside the cleaning box to be discharged through the liquid outlet.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. The present invention provides a cleaning component. When the cutting knife needs to be cleaned, the first threaded rod is driven to rotate by controlling the motor. The rotation of the first threaded rod drives the cleaning seat to move. The movement of the cleaning seat drives the scraper to move, so that the scraper slides on the outer wall of the bottom end of the cutting knife to scrape away the glue adhered to the surface of the cutting knife, thereby preventing the surface of the cutting knife from being adhered to glue, which will affect the cutting effect and the aesthetics of the finished label. Cleaning it helps to improve the cutting effect of the label and the aesthetics of the finished product.

[0024] 2. The present invention provides an auxiliary cleaning component. During the process of moving the cutting knife to clean, the wedge block is forced to move toward the side away from the fixed rod when it contacts the fixed rod. The movement of the wedge block drives the movement of the slider. The movement of the slider drives the movement of the connecting plate. The movement of the connecting plate drives the movement of the blocking block, so that the blocking block slides out from the inside of the liquid outlet. The cleaning liquid inside the cleaning box is discharged from the liquid outlet and absorbed by the cleaning cotton, thereby ensuring that the surface of the cutting knife is thoroughly cleaned and improving the cleaning effect of the cleaning cotton on the cutting knife.

[0025] 3. The present invention arranges a booster assembly so that when the slider moves to discharge liquid, it drives the moving rod to move, the movement of the moving rod drives the movement of the limiting ring, the movement of the limiting ring drives the movement of the sliding rod, the movement of the sliding rod drives the rotation of the disc, the rotation of the disc drives the rotation of the rotating shaft, the rotation of the rotating shaft drives the rotation of the first bevel gear, the rotation of the first bevel gear drives the rotation of the second bevel gear, the rotation of the second bevel gear drives the rotation of the second threaded rod, the rotation of the second threaded rod drives the movement of the piston rod, so that the piston at one end of the piston rod moves in the trachea, squeezing the gas inside the trachea into the airbag, causing the airbag to expand, and maintaining a certain pressure inside the cleaning box, which helps the cleaning liquid inside the cleaning box to be discharged through the liquid outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the cross-section of the structure of the frame of the present invention;

[0028] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0029] Figure 4 It is a front view of the structure section of the cleaning box of the present invention;

[0030] Figure 5 It is a schematic cross-sectional view of the structure of the cleaning box of the present invention;

[0031] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0032] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of the structure at point C in the middle.

[0033] In the figure: 1, base; 2, conveyor belt; 3, label body; 4, laminating roller; 5, film pressing roller; 6, cylinder; 7, cutting knife; 8, cleaning seat; 9, scraper; 10, connecting rod; 11, first threaded rod; 12, frame; 13, cleaning box; 14, cleaning cotton; 15, liquid outlet; 16, blocking block; 17, connecting plate; 18, slider; 19, wedge block; 20, fixed rod; 21, fixed plate; 22, moving rod; 23, spring; 24, slide rod; 25, limit ring; 26, disc; 27, rotating shaft; 28, first bevel gear; 29, second bevel gear; 30, second threaded rod; 31, piston rod; 32, air pipe; 33, air bag; 34, liquid adding pipe; 35, liquid adding plug; 36, rotating block; 37, motor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figures 1 to 7 As shown, in an embodiment of the present invention, a laminating device for paper labels includes a base 1, a conveyor belt 2 is installed inside the base 1, a label body 3 is arranged at the top of the conveyor belt 2, a laminating roller 4 and a laminating roller 5 are arranged above the label body 3, the laminating roller 4 and the laminating roller 5 are both installed at the top of the base 1, the top of the base 1 is fixedly connected to a frame 12, the bottom end of the frame 12 is fixedly installed with a cylinder 6, the bottom end of the cylinder 6 is connected to a cutting knife 7, and one end of the cutting knife 7 is provided with a cleaning component;

[0036] Among them, the cleaning component includes a cleaning seat 8 arranged at one end of the cutting knife 7, a connecting rod 10 is slidably connected to one side of the cleaning seat 8, the connecting rod 10 is fixedly installed inside the frame 12, the inside of the connecting rod 10 is rotatably connected to a first threaded rod 11, the first threaded rod 11 is embedded in the cleaning seat 8, a motor 37 is installed at one end of the first threaded rod 11, and a scraper 9 is fixedly installed at the top of the cleaning seat 8.

[0037] Existing: CN221476143U discloses a laminating structure for self-adhesive labels. This patent discloses the base 1, conveyor belt 2, label body 3, laminating roller 4 and laminating roller 5 proposed in this application document. This technical means is not described one by one here;

[0038] When laminating a paper label, firstly place the paper label on the top of the label body 3, and laminarize it through the cooperation of the laminating roller 4 and the laminating roller 5, and then the paper label is transported to one side of the frame 12 after laminating;

[0039] Then the cylinder 6 drives the cutting knife 7 to press down and cut the laminated paper label, dividing it into equidistant labels;

[0040] When the cutting knife 7 needs to be cleaned, the first threaded rod 11 is driven to rotate by controlling the motor 37. The rotation of the first threaded rod 11 drives the cleaning seat 8 to move. The movement of the cleaning seat 8 drives the scraper 9 to move, so that the scraper 9 slides on the outer wall of the bottom end of the cutting knife 7 to scrape away the glue adhered to the surface of the cutting knife 7, thereby preventing the surface of the cutting knife 7 from being adhered to glue, which will affect the cutting effect and the aesthetics of the finished label. Cleaning it helps to improve the cutting effect and the aesthetics of the finished label.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, a cleaning box 13 is provided on one side of the scraper 9, and the cleaning box 13 is fixedly mounted on the top of the cleaning seat 8. Cleaning cotton 14 is installed on the inner wall of the cleaning box 13, and an auxiliary cleaning component is arranged inside the cleaning box 13.

[0042] After the scraper 9 scrapes off the glue on the outer wall of the cutting knife 7, some residues may still remain on the outer wall. These residues can be further removed by wiping with the cleaning box 13, so as to achieve deep cleaning of the cutting knife 7 and keep the cutting knife 7 clean and hygienic.

[0043] like Figure 5 , Figure 6 and Figure 7 As shown, the auxiliary cleaning component includes a connecting plate 17 arranged inside the cleaning box 13, and two connecting plates 17 are symmetrically arranged. The side walls of the two connecting plates 17 are fixedly connected with blocking blocks 16, and the blocking blocks 16 are evenly distributed. The blocking blocks 16 are embedded in the liquid outlet 15, and the liquid outlet 15 is opened in the cleaning box 13. A slider 18 is fixedly installed on the top of the connecting plate 17, and a moving rod 22 is fixedly installed inside the slider 18. A wedge 19 is fixedly connected to one side of the slider 18, and a fixing rod 20 is arranged on one side of the wedge 19. The fixing rod 20 is fixedly installed at the bottom end of the fixing plate 21, and the fixing plate 21 is fixedly installed inside the frame 12.

[0044] During the process of moving to clean the cutting knife 7, the wedge block 19 is forced to move toward the side away from the fixing rod 20 when it contacts the fixing rod 20. The movement of the wedge block 19 drives the movement of the slider 18, and the movement of the slider 18 drives the movement of the connecting plate 17. The movement of the connecting plate 17 drives the movement of the blocking block 16, so that the blocking block 16 slides out from the inside of the liquid outlet 15, and the cleaning liquid inside the cleaning box 13 is discharged from the liquid outlet 15 and absorbed by the cleaning cotton 14, ensuring that the surface of the cutting knife 7 is thoroughly cleaned, thereby improving the cleaning effect of the cleaning cotton 14 on the cutting knife 7.

[0045] like Figure 6As shown, the slider 18 is slidably installed inside the cleaning box 13, and a spring 23 is provided on one side of the slider 18.

[0046] When the liquid is discharged, the slider 18 moves to cause the spring 23 to deform under force. When the wedge block 19 is separated from the fixing rod 20, the elastic potential energy is released by the spring 23 to reset the slider 18, and the liquid is no longer discharged.

[0047] like Figure 5 , Figure 6 and Figure 7 As shown, an air bag 33 is installed inside the cleaning box 13, and a pressurizing component is arranged inside the cleaning box 13.

[0048] like Figure 5 , Figure 6 and Figure 7 As shown, the booster assembly includes an air pipe 32 opened in the cleaning box 13, the top end of the air pipe 32 is connected to the interior of the airbag 33, a piston rod 31 is slidably installed inside the air pipe 32, the internal thread of the piston rod 31 is connected to the second threaded rod 30, the outer wall of the second threaded rod 30 is fixedly installed with a second bevel gear 29, the top end of the second bevel gear 29 is meshingly connected with the first bevel gear 28, the top end of the first bevel gear 28 is fixedly installed with a rotating shaft 27, the top end of the rotating shaft 27 is fixedly installed with a disc 26, the top end of the disc 26 is fixedly installed with a slide rod 24, the outer wall of the slide rod 24 is provided with a limit ring 25, and the limit ring 25 is fixedly installed on one end of the moving rod 22.

[0049] When the slider 18 moves to discharge liquid, it drives the moving rod 22 to move. The movement of the moving rod 22 drives the movement of the limiting ring 25. The movement of the limiting ring 25 drives the movement of the sliding rod 24. The movement of the sliding rod 24 drives the rotation of the disc 26. The rotation of the disc 26 drives the rotation of the rotating shaft 27. The rotation of the rotating shaft 27 drives the rotation of the first bevel gear 28. The rotation of the first bevel gear 28 drives the rotation of the second bevel gear 29. The rotation of the second bevel gear 29 drives the rotation of the second threaded rod 30. The rotation of the second threaded rod 30 drives the movement of the piston rod 31, so that the piston at one end of the piston rod 31 moves in the air pipe 32, squeezing the gas inside the air pipe 32 into the air bag 33, so that the air bag 33 expands, and a certain pressure is maintained inside the cleaning box 13, which helps the cleaning liquid inside the cleaning box 13 to be discharged through the liquid outlet 15.

[0050] like Figure 6 As shown, the slide rod 24 is slidably installed inside the limiting ring 25.

[0051] like Figure 7 As shown, a rotating block 36 is fixedly mounted on one end of the second threaded rod 30 , and the rotating block 36 is arranged on one side of the cleaning box 13 .

[0052] The pressure inside the airbag 33 can be adjusted by rotating the rotating block 36 .

[0053] like Figure 5 As shown, a liquid adding pipe 34 is fixedly connected to the side wall of the cleaning box 13 , and a liquid adding plug 35 is embedded in the top end of the liquid adding pipe 34 .

[0054] Cleaning liquid is added into the cleaning box 13 through the liquid adding pipe 34 .

[0055] A method for using a laminating device for paper labels comprises the following steps:

[0056] S1: When laminating a paper label, firstly place the paper label on the top of the label body 3, and laminarize it through the cooperation of the laminating roller 4 and the laminating roller 5, and then the paper label is transported to one side of the frame 12 after lamination;

[0057] S2: Then the cylinder 6 drives the cutting knife 7 to press down and cut the laminated paper label to divide it into equidistant labels;

[0058] S3: When cleaning the cutting blade 7, the first threaded rod 11 is driven to rotate by controlling the cleaning box 13. The rotation of the first threaded rod 11 drives the cleaning seat 8 to move. The movement of the cleaning seat 8 drives the scraper 9 to move, so that the scraper 9 slides on the outer wall of the bottom end of the cutting blade 7 to scrape away the glue adhered to the surface of the cutting blade 7;

[0059] S4: In the process of moving to clean the cutting knife 7, the wedge block 19 is forced to move to the side away from the fixing rod 20 when in contact with the fixing rod 20, and the movement of the wedge block 19 drives the movement of the slider 18, and the movement of the slider 18 drives the movement of the connecting plate 17, and the movement of the connecting plate 17 drives the movement of the blocking block 16, so that the blocking block 16 slides out from the inside of the liquid outlet 15, and the cleaning liquid in the cleaning box 13 is discharged from the liquid outlet 15 and absorbed by the cleaning cotton 14, and the cleaning cotton 14 wipes the surface of the cutting knife 7 clean during the movement;

[0060] S5: When the slider 18 moves, it drives the moving rod 22 to move, and the movement of the moving rod 22 drives the movement of the limiting ring 25, and the movement of the limiting ring 25 drives the movement of the sliding rod 24, and the movement of the sliding rod 24 drives the rotation of the disc 26, and the rotation of the disc 26 drives the rotation of the rotating shaft 27, and the rotation of the rotating shaft 27 drives the rotation of the first bevel gear 28, and the rotation of the first bevel gear 28 drives the rotation of the second bevel gear 29, and the rotation of the second bevel gear 29 drives the rotation of the second threaded rod 30, and the rotation of the second threaded rod 30 drives the movement of the piston rod 31, so that the piston at one end of the piston rod 31 moves in the air pipe 32, squeezes the gas inside the air pipe 32 into the air bag 33, and expands the air bag 33, and maintains a certain pressure inside the cleaning box 13, which helps the cleaning liquid inside the cleaning box 13 to be discharged through the liquid outlet 15.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laminating device for paper labels, comprising a base (1), characterized in that: A conveyor belt (2) is installed inside the base (1), a label body (3) is arranged at the top of the conveyor belt (2), a laminating roller (4) and a film pressing roller (5) are arranged above the label body (3), the laminating roller (4) and the film pressing roller (5) are both installed at the top of the base (1), the top of the base (1) is fixedly connected to a frame (12), the bottom end of the frame (12) is fixedly installed with a cylinder (6), the bottom end of the cylinder (6) is connected to a cutting knife (7), and one end of the cutting knife (7) is provided with a cleaning component; The cleaning assembly comprises a cleaning seat (8) arranged at one end of the cutting knife (7); a connecting rod (10) is slidably connected to one side of the cleaning seat (8); the connecting rod (10) is fixedly mounted inside a frame (12); a first threaded rod (11) is rotatably connected inside the connecting rod (10); the first threaded rod (11) is embedded in the cleaning seat (8); a motor (37) is mounted at one end of the first threaded rod (11); and a scraper (9) is fixedly mounted on the top of the cleaning seat (8).

2. A laminating device for paper labels according to claim 1, characterized in that: A cleaning box (13) is provided on one side of the scraper (9), the cleaning box (13) is fixedly mounted on the top of the cleaning seat (8), a cleaning cotton (14) is mounted on the inner wall of the cleaning box (13), and an auxiliary cleaning component is provided inside the cleaning box (13).

3. A laminating device for paper labels according to claim 2, characterized in that: The auxiliary cleaning component comprises a connecting plate (17) arranged inside the cleaning box (13), wherein two connecting plates (17) are symmetrically arranged, and the side walls of the two connecting plates (17) are fixedly connected with a blocking block (16), and the blocking blocks (16) are evenly distributed. The blocking blocks (16) are embedded in the liquid outlet hole (15), and the liquid outlet hole (15) is opened in the cleaning box (13). A slider (18) is fixedly installed on the top of the connecting plate (17), and a moving rod (22) is fixedly installed inside the slider (18). A wedge block (19) is fixedly connected to one side of the slider (18), and a fixing rod (20) is arranged on one side of the wedge block (19). The fixing rod (20) is fixedly installed at the bottom end of a fixing plate (21), and the fixing plate (21) is fixedly installed inside the frame (12).

4. A laminating device for paper labels according to claim 3, characterized in that: The slider (18) is slidably mounted inside the cleaning box (13), and a spring (23) is provided on one side of the slider (18).

5. The laminating device for paper labels according to claim 2, characterized in that: An air bag (33) is installed inside the cleaning box (13), and a pressurizing component is arranged inside the cleaning box (13).

6. A laminating device for paper labels according to claim 5, characterized in that: The booster assembly comprises an air pipe (32) opened inside the cleaning box (13), the top end of the air pipe (32) being connected to the inside of the air bag (33), a piston rod (31) being slidably mounted inside the air pipe (32), the inner thread of the piston rod (31) being connected to a second threaded rod (30), a second bevel gear (29) being fixedly mounted on the outer wall of the second threaded rod (30), the top end of the second bevel gear (29) being meshingly connected to a first bevel gear (28), a rotating shaft (27) being fixedly mounted on the top end of the first bevel gear (28), a disc (26) being fixedly mounted on the top end of the rotating shaft (27), a sliding rod (24) being fixedly mounted on the top end of the disc (26), a limiting ring (25) being provided on the outer wall of the sliding rod (24), and the limiting ring (25) being fixedly mounted on one end of the moving rod (22).

7. A lamination device for paper labels according to claim 6, characterized in that: The sliding rod (24) is slidably mounted inside the limiting ring (25).

8. The laminating device for paper labels according to claim 6, characterized in that: A rotating block (36) is fixedly mounted on one end of the second threaded rod (30), and the rotating block (36) is arranged on one side of the cleaning box (13).

9. The laminating device for paper labels according to claim 2, characterized in that: A liquid adding pipe (34) is fixedly connected to the side wall of the cleaning box (13), and a liquid adding plug (35) is embedded at the top end of the liquid adding pipe (34).

10. A method for using a laminating device for paper labels, the method being applicable to the laminating device for paper labels as claimed in claims 1 to 9, characterized in that: The following steps are involved: S1: When laminating a paper label, firstly, the paper label is placed on the top of the label body (3), and is laminated by the cooperation of the laminating roller (4) and the laminating roller (5). After lamination, the paper label is transported to one side of the frame (12); S2: Then, the cylinder (6) drives the cutting knife (7) to press down and cut the laminated paper label, thereby dividing it into labels with equal spacing; S3: When cleaning the cutting blade (7), the first threaded rod (11) is driven to rotate by controlling the cleaning box (13), the rotation of the first threaded rod (11) drives the cleaning seat (8) to move, and the movement of the cleaning seat (8) drives the scraper (9) to move, so that the scraper (9) slides on the outer wall of the bottom end of the cutting blade (7) to scrape away the glue adhering to the surface of the cutting blade (7); S4: During the process of moving to clean the cutting knife (7), the wedge block (19) is forced to move toward a side away from the fixing rod (20) when in contact with the fixing rod (20). The movement of the wedge block (19) drives the movement of the slider (18). The movement of the slider (18) drives the movement of the connecting plate (17). The movement of the connecting plate (17) drives the movement of the blocking block (16), so that the blocking block (16) slides out from the inside of the liquid outlet (15). The cleaning liquid in the cleaning box (13) is discharged from the liquid outlet (15) and absorbed by the cleaning cotton (14). The cleaning cotton (14) wipes the surface of the cutting knife (7) to clean it during the movement. S5: When the slider (18) moves, the moving rod (22) is driven to move, the movement of the moving rod (22) drives the movement of the limiting ring (25), the movement of the limiting ring (25) drives the movement of the sliding rod (24), the movement of the sliding rod (24) drives the rotation of the disk (26), the rotation of the disk (26) drives the rotation of the rotating shaft (27), the rotation of the rotating shaft (27) drives the rotation of the first bevel gear (28), the rotation of the first bevel gear (28) drives the second bevel gear ( The rotation of the second bevel gear (29) drives the second threaded rod (30) to rotate, and the rotation of the second threaded rod (30) drives the piston rod (31) to move, so that the piston at one end of the piston rod (31) moves in the air pipe (32), squeezes the gas in the air pipe (32) into the air bag (33), and expands the air bag (33), so that a certain pressure is maintained inside the cleaning box (13), which helps the cleaning liquid in the cleaning box (13) to be discharged through the liquid outlet (15).

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