Full-automatic corrugated board film laminating machine

Abstract

The utility model discloses a full-automatic corrugated board film laminating machine, which relates to the technical field of corrugated board film laminating and comprises an operation table and a feeding unit. Supporting columns are arranged on the lower surface of the operation table, two fixing plates are arranged on the upper surface of the operation table, and a limiting unit, a cutting unit, a film covering unit and a conveying assembly are arranged between the two fixing plates. And the feeding unit comprises a material box, supporting legs, a first screw rod, a top plate, a support, a first electric push rod, a mounting base, an electric roller, a rubber wheel, a proximity sensor and a motor, the material box is arranged on the side face of the operation table, and the supporting legs and the motor are arranged on the lower surface of the material box. According to the corrugated board feeding device, corrugated boards can be automatically fed, the workload of workers is reduced, and the production efficiency is improved; and the corrugated boards can be limited, so that the corrugated boards are prevented from deviating in the conveying process before film covering, and the influence on the film covering quality is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paperboard laminating, in particular to a full-automatic corrugated paperboard laminating machine. Background Art

[0002] Cardboard packaging boxes are commonly used packaging containers in daily life. They have the advantages of low cost and light weight. However, cardboard packaging boxes also have disadvantages when used. For example, the moisture-proof effect of the packaging box is not good. When it is necessary to hold items with high humidity, a layer of plastic film needs to be pasted on the corrugated cardboard during the production of the packaging box to make the corrugated cardboard, i.e. the packaging box, have a moisture-proof effect. A laminating machine is required to perform the laminating operation. When the existing laminating machine is in use, the staff needs to place the corrugated cardboard on the laminating machine piece by piece, which increases the workload of the staff and greatly slows down the work efficiency; and during the transportation process, when the corrugated cardboard is deflected, it will affect the laminating quality of the corrugated cardboard. For this reason, we propose a fully automatic corrugated cardboard laminating machine. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a fully automatic corrugated cardboard laminating machine, which can automatically load corrugated cardboard, reduce the workload of staff, and improve production efficiency; and can limit the corrugated cardboard to avoid deflection of the corrugated cardboard during the transportation process before lamination, avoid affecting the quality of the lamination, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully automatic corrugated board laminating machine, comprising an operating table and a feeding unit;

[0005] Operating table: The lower surface is provided with pillars, and the upper surface of the operating table is provided with two fixed plates, and a limiting unit, a cutting unit, a laminating unit and a conveying component are provided between the two fixed plates;

[0006] The feeding unit comprises a material box, a leg, a screw rod 1, a top plate, a bracket, an electric push rod 1, a mounting seat, an electric roller, a rubber wheel, a proximity sensor and a motor. The material box is arranged on the side of the operating table, and the lower surface of the material box is provided with a leg and a motor. The output shaft of the motor is connected with the screw rod 1, and the screw rod 1 is rotatably connected to the material box. The part of the screw rod 1 located in the material box is threadedly connected with the top plate, and the top plate is slidably connected in the material box. The upper end of the material box is provided with a bracket, and the bracket is provided with an electric push rod 1, and the electric push rod 1 is connected with a mounting seat, and the mounting seat is rotatably connected with the electric roller, and the electric roller is equidistantly provided with rubber wheels, and the proximity sensor is arranged on the mounting seat, and the output end of the proximity sensor is electrically connected to the input end of the external control switch group, and the input ends of the electric push rod 1, the electric roller and the motor are electrically connected to the output end of the external control switch group.

[0007] The material box is supported by the legs, and a conveyor belt is provided on the conveying assembly, and the corrugated cardboard is conveyed by the conveyor belt. When working, the cardboard to be coated is placed in the material box, and the motor is controlled to work by the external control switch group. The motor drives the screw to rotate, and the screw drives the top plate to move, and the top plate drives the corrugated cardboard to move, so that the top corrugated cardboard is higher than the conveying assembly. The electric push rod is controlled to work by the external control switch group, and the electric push rod drives the mounting seat to move, and the mounting seat drives the electric roller, the rubber wheel and the proximity sensor to move. The distance from the rubber wheel to the corrugated cardboard is detected by the proximity sensor. When the rubber wheel contacts the corrugated cardboard, the electric push rod stops moving, and the electric roller is controlled to work by the external control switch group. The electric roller drives the rubber wheel to rotate, and the rubber wheel drives the corrugated cardboard to slide out, so that the corrugated cardboard moves to the conveying component. At the same time, according to the thickness of the corrugated cardboard, the motor is controlled by the external control switch group to drive the screw to rotate, so that the corrugated cardboard contacts the rubber wheel again, thereby realizing automatic loading of the corrugated cardboard. After the corrugated cardboard enters the conveying component, it is conveyed through the conveying component, and the corrugated cardboard is limited by the limiting unit to avoid the deflection of the corrugated cardboard during the conveying process. The corrugated cardboard is laminated by the laminating unit, and the laminated corrugated cardboard is cut and separated by the cutting unit, so that the corrugated cardboard is separated, and the separated corrugated cardboard is conveyed and collected by the conveying component.

[0008] Furthermore, the limit unit includes an electric push rod 2, a connecting plate, a sliding rod and a limit plate. The electric push rod 2 has two and is respectively arranged on two fixed plates. The electric push rod 2 is connected to a connecting plate, the connecting plate is connected to a sliding rod, the sliding rod is slidably connected to the fixed plate, a limit plate is arranged on the part of the sliding rod located between the two fixed plates, and the input end of the electric push rod 2 is electrically connected to the output end of the external control switch group. The feed end of the limit plate is arc-shaped, so that the corrugated cardboard can better enter between the two limit plates. When working, according to the width of the corrugated cardboard, the electric push rod 2 is controlled by the external control switch group to work, the electric push rod 2 drives the connecting plate to move, the connecting plate drives the sliding rod to move, and the sliding rod drives the limit plate to move, so as to adjust the distance between the two limit plates, and the corrugated cardboard is limited by the limit plate to prevent the corrugated cardboard from being deflected during the transportation process and affecting the lamination.

[0009] Furthermore, the cutting unit includes a paper pressing wheel, a screw, a slider, a cutting knife, and a photoelectric sensor. The screw is rotatably connected to two fixed plates, the screw is threadedly connected to the slider, a cutting knife is provided on the slider, the cutting knife is slidably connected to a conveying assembly, the photoelectric sensor is provided on the fixed plate, there are four paper pressing wheels in total and all are rotatably connected between the two fixed plates, two paper pressing wheels form a group, the two groups of paper pressing wheels are respectively provided on both sides of the screw, the two paper pressing wheels in each group are respectively located on the upper and lower sides of the conveying assembly, and the output end of the photoelectric sensor is electrically connected to the input end of the external control switch group. The two pressing wheels in each group are respectively located on the upper and lower sides of the conveyor belt on the conveying assembly. The pressing wheels and the screw are connected to an external power device. When the first corrugated cardboard passes through the photoelectric sensor, the photoelectric sensor is started. When the photoelectric sensor senses the gap between the two corrugated cardboards, the two corrugated cardboards are respectively located under the two groups of pressing wheels. The corrugated cardboards are pressed by the pressing wheels. At the same time, the external power device drives the screw to rotate, the screw drives the slider to move, and the slider drives the cutting knife to move. The film at the connection between the two corrugated cardboards is cut by the cutting knife, so that the laminated corrugated cardboards are separated.

[0010] Furthermore, the cutting unit further comprises a limiting rod, which is arranged between the two fixing plates and is slidably connected to the slider. The slider is limited by the limiting rod to prevent the slider from rotating when it moves.

[0011] Furthermore, the coating unit includes a film winding roller, a guide roller, a squeezing roller, a heating roller and a supporting roller, wherein the film winding roller, the guide roller, the squeezing roller, the heating roller and the supporting roller are all rotatably connected between two fixed plates, the film winding roller is located above the guide roller, the guide roller is located above the squeezing roller, the squeezing roller and the heating roller are located at the same horizontal height and are both located above the conveying assembly, there are two supporting rollers and they are respectively located directly below the squeezing roller and the heating roller, and the supporting roller is located below the conveying assembly. A temperature-controlled heating component is provided in the heating roller, and the supporting roller is located below the conveyor belt on the conveying component. The film-winding roller, the guide roller, the squeezing roller, the heating roller and the supporting roller are all connected to an external power device, which drives the film-winding roller, the guide roller, the squeezing roller, the heating roller and the supporting roller to rotate. After the film on the film-winding roller is sent out, it is guided by the guide roller so that the film enters between the squeezing roller and the corrugated cardboard, and the film is adhered to the surface of the corrugated cardboard through the squeezing roller. The temperature-controlled heating component in the heating roller heats the heating roller, and the glue layer on the film is heated by the heating roller, so that the film covers the corrugated cardboard, thereby completing the lamination of the corrugated cardboard. When the squeezing roller and the heating roller squeeze the corrugated cardboard, the supporting roller supports the corrugated cardboard.

[0012] Furthermore, it also includes a receiving box and a slide rail, wherein the slide rail is arranged on the upper surface of the operating table, and the receiving box is slidably connected to the slide rail. The upper end of the receiving box is lower than the height of the conveying component, and the receiving box is installed on the slide rail, and the corrugated cardboard coated on the conveying component slides into the receiving box for collection.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Place the corrugated cardboard on the top plate in the material box. According to the thickness of the corrugated cardboard, the screw 1 and the motor drive the top plate and the corrugated cardboard to rise and feed. The rubber wheel contacts the corrugated cardboard through the electric push rod 2, the mounting seat and the proximity sensor. The corrugated cardboard is pushed onto the conveying component through the electric roller and the rubber wheel to realize automatic feeding of the corrugated cardboard, improve the uniformity of feeding, and do not need the staff to keep feeding, which effectively reduces the workload of the staff and improves the work efficiency.

[0015] 2. The second electric push rod drives the sliding rod to move through the connecting plate, and the sliding rod drives the limit plate to move. The distance between the two limit plates is adjusted by the movement distance of the limit plate, so that the corrugated cardboard on the conveying component is automatically adjusted and limited by the limit plate to avoid the deflection of the corrugated cardboard during the conveying process before lamination, ensure the normal lamination of the corrugated cardboard, and avoid the deflection of the corrugated cardboard affecting the quality of the lamination.

[0016] 3. When the first piece of corrugated cardboard passes through the photoelectric sensor, the photoelectric sensor is started. When the photoelectric sensor senses the gap between the two pieces of corrugated cardboard, the two pieces of corrugated cardboard are pressed tightly by the bottom of the paper pressing wheel. The external power device drives the cutting knife to move through the screw and the slider, and cuts the film at the connection between the two corrugated cardboards by the cutting knife. After lamination, there is no need for manual film cutting, which improves automation and efficiency and reduces the workload of staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the side structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.

[0020] In the figure: 1 operating table, 2 loading unit, 21 material box, 22 support leg, 23 electric push rod 1, 24 top plate, 25 bracket, 26 electric push rod 2, 27 mounting seat, 28 electric roller, 29 rubber wheel, 210 proximity sensor, 211 screw rod 1, 212 motor, 3 limit unit, 31 electric push rod 3, 32 connecting plate, 33 slide bar, 34 limit plate, 4 cutting unit, 41 paper pressing wheel, 42 screw rod 2, 43 slide bar, 44 limit rod, 45 cutting knife, 46 photoelectric sensor, 5 laminating unit, 51 film winding roller, 52 guide roller, 53 squeezing roller, 54 heating roller, 55 support roller, 6 fixed plate, 7 conveying assembly, 8 material receiving box, 9 slide rail, 10 pillar. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 ,This embodiment provides a technical solution: a fully automatic corrugated board laminating machine, comprising an operating table 1 and a feeding unit 2;

[0023] Operating table 1: The lower surface is provided with a support column 10, and the upper surface of the operating table 1 is provided with two fixed plates 6, and a limiting unit 3, a cutting unit 4, a laminating unit 5 and a conveying component 7 are provided between the two fixed plates 6;

[0024] The feeding unit 2 includes a material box 21, a leg 22, a screw 23, a top plate 24, a bracket 25, an electric push rod 26, a mounting seat 27, an electric roller 28, a rubber wheel 29, a proximity sensor 210 and a motor 211. The material box 21 is arranged on the side of the operating table 1. The lower surface of the material box 21 is provided with a leg 22 and a motor 211. The output shaft of the motor 211 is connected to the screw 23. The screw 23 is rotatably connected to the material box 21. The part of the screw 23 located in the material box 21 is threadedly connected to the top plate 24. The top plate 24 slides It is connected in the material box 21, and a bracket 25 is provided at the upper end of the material box 21. An electric push rod 26 is provided on the bracket 25. The electric push rod 26 is connected to a mounting seat 27. An electric roller 28 is rotatably connected to the mounting seat 27. Rubber wheels 29 are equidistantly provided on the electric roller 28. A proximity sensor 210 is provided on the mounting seat 27. The output end of the proximity sensor 210 is electrically connected to the input end of an external control switch group, and the input ends of the electric push rod 26, the electric roller 28 and the motor 211 are electrically connected to the output end of the external control switch group.

[0025] The material box 21 is supported by the legs 22, and a conveyor belt is provided on the conveying assembly 7, through which the corrugated cardboard is conveyed. When working, the cardboard to be coated is placed in the material box 21, and the motor 211 is controlled to work by the external control switch group, and the motor 211 drives the screw 23 to rotate, and the screw 23 drives the top plate 24 to move, and the top plate 24 drives the corrugated cardboard to move, so that the top corrugated cardboard is higher than the conveying assembly 7, and the electric push rod 26 is controlled to work by the external control switch group, and the electric push rod 26 drives the mounting seat 27 to move, and the mounting seat 27 drives the electric roller 28, the rubber wheel 29 and the proximity sensor 210 to move, and the distance from the rubber wheel 29 to the corrugated cardboard is detected by the proximity sensor 210. When the rubber wheel 29 contacts the corrugated cardboard, the electric push rod 26 stops moving, and the external control switch group is used to control the electric push rod 26 to work. The control switch group controls the operation of the electric roller 28, and the electric roller 28 drives the rubber wheel 29 to rotate, and the rubber wheel 29 drives the corrugated cardboard to slide out, so that the corrugated cardboard moves to the conveying component 7. At the same time, according to the thickness of the corrugated cardboard, the external control switch group controls the motor 211 to drive the screw 23 to rotate, so that the corrugated cardboard contacts the rubber wheel 29 again, thereby realizing automatic feeding of the corrugated cardboard. After the corrugated cardboard enters the conveying component 7, the corrugated cardboard is conveyed by the conveying component 7, and the corrugated cardboard is limited by the limiting unit 3 to prevent the corrugated cardboard from being deflected during the conveying process. The corrugated cardboard is laminated by the laminating unit 5, and the laminated corrugated cardboard is cut and separated by the cutting unit 4, so that the corrugated cardboard is separated, and the separated corrugated cardboard is conveyed and collected by the conveying component 7.

[0026] The limiting unit 3 includes an electric push rod 31, a connecting plate 32, a sliding rod 33 and a limiting plate 34. There are two electric push rods 31 and they are respectively arranged on two fixed plates 6. The electric push rod 31 is connected to the connecting plate 32, the connecting plate 32 is connected to the sliding rod 33, the sliding rod 33 is slidably connected to the fixed plate 6, and the limiting plate 34 is arranged on the part of the sliding rod 33 located between the two fixed plates 6. The input end of the electric push rod 31 is electrically connected to the output end of the external control switch group. The feeding end of the limit plate 34 is arc-shaped, so that the corrugated cardboard can better enter between the two limit plates 34. When working, according to the width of the corrugated cardboard, the electric push rod 2 31 is controlled by the external control switch group, and the electric push rod 2 31 drives the connecting plate 32 to move, the connecting plate 32 drives the sliding rod 33 to move, and the sliding rod 33 drives the limit plate 34 to move, thereby adjusting the distance between the two limit plates 34. The corrugated cardboard is limited by the limit plate 34 to prevent the corrugated cardboard from being skewed during the transportation process to affect the lamination.

[0027] The cutting unit 4 includes a paper pressing wheel 41, a screw 42, a slider 43, a cutting knife 45, and a photoelectric sensor 46. The screw 42 is rotatably connected to two fixed plates 6. The screw 42 is threadedly connected to the slider 43. The slider 43 is provided with a cutting knife 45. The cutting knife 45 is slidably connected to the conveying component 7. The photoelectric sensor 46 is arranged on the fixed plate 6. There are four paper pressing wheels 41 in total and they are all rotatably connected between the two fixed plates 6. Two paper pressing wheels 41 form a group. The two groups of paper pressing wheels 41 are respectively arranged on both sides of the screw 42. The two paper pressing wheels 41 in each group are respectively located on the upper and lower sides of the conveying component 7. The output end of the photoelectric sensor 46 is electrically connected to the input end of the external control switch group. The two pressing wheels 41 in each group are respectively located on the upper and lower sides of the conveyor belt on the conveying assembly 7. The pressing wheels 41 and the screw 42 are connected to an external power device. When the first corrugated cardboard passes through the photoelectric sensor 46, the photoelectric sensor 46 is started to work. When the photoelectric sensor 46 senses the gap between the two corrugated cardboards, the two corrugated cardboards are respectively located under the two groups of pressing wheels 41. The corrugated cardboards are pressed by the pressing wheels 41. At the same time, the external power device drives the screw 42 to rotate, the screw 42 drives the slider 43 to move, and the slider 43 drives the cutting knife 45 to move. The film at the connection between the two corrugated cardboards is cut by the cutting knife 45, so that the coated corrugated cardboards are separated.

[0028] The cutting unit 4 further comprises a limiting rod 44, which is arranged between the two fixing plates 6 and is slidably connected to the slider 43. The slider 43 is limited by the limiting rod 44 to prevent the slider 43 from rotating when it moves.

[0029] The coating unit 5 includes a film winding roller 51, a guide roller 52, a squeezing roller 53, a heating roller 54 and a supporting roller 55. The film winding roller 51, the guide roller 52, the squeezing roller 53, the heating roller 54 and the supporting roller 55 are all rotatably connected between two fixed plates 6. The film winding roller 51 is located above the guide roller 52, the guide roller 52 is located above the squeezing roller 53, the squeezing roller 53 and the heating roller 54 are located at the same horizontal height and are both located above the conveying component 7. There are two supporting rollers 55 and they are respectively located directly below the squeezing roller 53 and the heating roller 54, and the supporting roller 55 is located below the conveying component 7. A temperature-controlled heating component is provided in the heating roller 54, and the supporting roller 55 is located below the conveyor belt on the conveying component 7. The film-winding roller 51, the guide roller 52, the squeezing roller 53, the heating roller 54 and the supporting roller 55 are all connected to an external power device, which drives the film-winding roller 51, the guide roller 52, the squeezing roller 53, the heating roller 54 and the supporting roller 55 to rotate. After the film on the film-winding roller 51 is sent out, it is guided by the guide roller 52 so that the film enters between the squeezing roller 53 and the corrugated cardboard, and the film is attached to the surface of the corrugated cardboard through the squeezing roller 53. The temperature-controlled heating component in the heating roller 54 heats the heating roller 54, and the glue layer on the film is heated by the heating roller 54 so that the film covers the corrugated cardboard, thereby completing the lamination of the corrugated cardboard. When the squeezing roller 53 and the heating roller 54 squeeze the corrugated cardboard, the supporting roller 55 supports the corrugated cardboard.

[0030] The machine also includes a receiving box 8 and a slide rail 9, which is arranged on the upper surface of the operating table 1, and the receiving box 8 is slidably connected to the slide rail 9. The upper end of the receiving box 8 is lower than the height of the conveying assembly 7, and the receiving box 8 is installed on the slide rail 9, and the corrugated cardboard coated on the conveying assembly 7 slides into the receiving box 8 for collection.

[0031] The working principle of a fully automatic corrugated cardboard laminating machine provided by the utility model is as follows: a material receiving box 8 is installed on a slide rail 9, and the cardboard to be laminated is placed in a material box 21. According to the width of the corrugated cardboard, an electric push rod 2 31 is controlled to work through an external control switch group, and the electric push rod 2 31 drives the connecting plate 32 to move, the connecting plate 32 drives the sliding rod 33 to move, and the sliding rod 33 drives the limit plate 34 to move, thereby adjusting the distance between the two limit plates 34, and controlling the motor 211 to work through an external control switch group, the motor 211 drives the screw rod 1 23 to rotate, the screw rod 1 23 drives the top plate 24 to move, and the top plate 24 drives the corrugated cardboard to move, so that the top corrugated cardboard When the cardboard is higher than the conveying assembly 7, the electric push rod 26 is controlled by the external control switch group to work, and the electric push rod 26 drives the mounting seat 27 to move, and the mounting seat 27 drives the electric roller 28, the rubber wheel 29 and the proximity sensor 210 to move. The distance from the rubber wheel 29 to the corrugated cardboard is detected by the proximity sensor 210. When the rubber wheel 29 contacts the corrugated cardboard, the electric push rod 26 stops moving, and the electric roller 28 is controlled by the external control switch group to work, and the electric roller 28 drives the rubber wheel 29 to rotate, and the corrugated cardboard is driven by the rubber wheel 29 to slide out, so that the corrugated cardboard moves to the conveying assembly 7. At the same time, according to the thickness of the corrugated cardboard, the electric push rod 26 is controlled by the external control switch group. The machine 211 drives the screw 23 to rotate, so that the corrugated cardboard contacts the rubber wheel 29 again, so as to realize the automatic feeding of the corrugated cardboard. After the corrugated cardboard enters the conveying component 7, it is conveyed by the conveying component 7, and the corrugated cardboard is limited by the limit plate 34. When the corrugated cardboard moves to the squeezing roller 53, the film on the film roll roller 51 is sent out and guided by the guide roller 52, so that the film enters between the squeezing roller 53 and the corrugated cardboard, and the film is attached to the surface of the corrugated cardboard through the squeezing roller 53. The temperature-controlled heating component in the heating roller 54 heats the heating roller 54, and the glue layer on the film is heated by the heating roller 54, so that the film covers the corrugated cardboard, and then When the lamination of the corrugated cardboard is completed and the first piece of the laminating corrugated cardboard passes the photoelectric sensor 46, the photoelectric sensor 46 is started to work. When the photoelectric sensor 46 senses the gap between the two pieces of corrugated cardboard, the two pieces of corrugated cardboard are respectively located under the two sets of paper pressing wheels 41, and the corrugated cardboard is pressed by the paper pressing wheels 41. At the same time, the external power device drives the screw 42 to rotate, the screw 42 drives the slider 43 to move, and the slider 43 drives the cutting knife 45 to move. The film at the connection between the two corrugated cardboards is cut by the cutting knife 45, so that the laminating corrugated cardboards are separated, and the separated corrugated cardboards are conveyed into the receiving box 8 by the conveying component 7 for collection.

[0032] It is worth noting that the electric push rod 1 26 and the electric push rod 2 31 disclosed in the above embodiment are specifically modeled as YNT-03, the proximity sensor 210 is specifically modeled as CL18-RN16DL1, the motor 212 is specifically modeled as D110M-040030B-E, the photoelectric sensor 46 is specifically modeled as CPA-DR300N3-A, the electric roller 28 is an automatic electric roller, and a PLC controller is provided in the external control switch group. The external control switch group controls the operation of the electric push rod 1 26, the electric roller 28, the motor 212 and the electric push rod 2 31 using methods commonly used in the prior art.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fully automatic corrugated board laminating machine, characterized in that: It comprises an operating table (1) and a loading unit (2); An operating table (1): a support column (10) is arranged on the lower surface, two fixing plates (6) are arranged on the upper surface of the operating table (1), and a limiting unit (3), a cutting unit (4), a laminating unit (5) and a conveying assembly (7) are arranged between the two fixing plates (6); The feeding unit (2) comprises a material box (21), a leg (22), a screw rod (23), a top plate (24), a bracket (25), an electric push rod (26), a mounting seat (27), an electric roller (28), a rubber wheel (29), a proximity sensor (210) and a motor (211). The material box (21) is arranged on the side of the operating table (1). The lower surface of the material box (21) is provided with a leg (22) and a motor (211). The output shaft of the motor (211) is connected to the screw rod (23). The screw rod (23) is rotatably connected to the material box (21). The portion of the screw rod (23) located in the material box (21) is threadedly connected to the top plate (24). The top plate (24) is slidably connected in the material box (21); a bracket (25) is provided at the upper end of the material box (21); an electric push rod (26) is provided on the bracket (25); the electric push rod (26) is connected to a mounting seat (27); an electric roller (28) is rotatably connected to the mounting seat (27); rubber wheels (29) are equidistantly provided on the electric roller (28); the proximity sensor (210) is provided on the mounting seat (27); an output end of the proximity sensor (210) is electrically connected to an input end of an external control switch group; and input ends of the electric push rod (26), the electric roller (28) and the motor (211) are electrically connected to an output end of the external control switch group.

2. The fully automatic corrugated board laminating machine according to claim 1, characterized in that: The limiting unit (3) comprises a second electric push rod (31), a connecting plate (32), a sliding rod (33) and a limiting plate (34). The second electric push rod (31) is two in total and is respectively arranged on two fixed plates (6). The second electric push rod (31) is connected to the connecting plate (32), the connecting plate (32) is connected to the sliding rod (33), the sliding rod (33) is slidably connected to the fixed plate (6), and the limiting plate (34) is arranged on the portion of the sliding rod (33) located between the two fixed plates (6). The input end of the second electric push rod (31) is electrically connected to the output end of the external control switch group.

3. The fully automatic corrugated board laminating machine according to claim 1, characterized in that: The cutting unit (4) comprises a paper pressing wheel (41), a screw (42), a slider (43), a cutting knife (45), and a photoelectric sensor (46). The screw (42) is rotatably connected to two fixed plates (6). The screw (42) is threadably connected to the slider (43). The slider (43) is provided with a cutting knife (45). The cutting knife (45) is slidably connected to a conveying assembly (7). The photoelectric sensor (46) is arranged on the fixed plate (6). There are four paper pressing wheels (41) in total and they are all rotatably connected between the two fixed plates (6). Two paper pressing wheels (41) form a group. The two groups of paper pressing wheels (41) are respectively arranged on both sides of the screw (42). The output end of the photoelectric sensor (46) is electrically connected to the input end of an external control switch group.

4. The fully automatic corrugated board laminating machine according to claim 3, characterized in that: The cutting unit (4) further comprises a limiting rod (44), wherein the limiting rod (44) is arranged between the two fixing plates (6), and the limiting rod (44) is slidably connected to the sliding block (43).

5. The fully automatic corrugated board laminating machine according to claim 1, characterized in that: The coating unit (5) comprises a film rolling roller (51), a guide roller (52), a squeezing roller (53), a heating roller (54) and a supporting roller (55); the film rolling roller (51), the guide roller (52), the squeezing roller (53), the heating roller (54) and the supporting roller (55) are all rotatably connected between two fixed plates (6); the film rolling roller (51) is located above the guide roller (52); the guide roller (52) is located above the squeezing roller (53); the squeezing roller (53) and the heating roller (54) are located at the same horizontal height and are both located above the conveying assembly (7); and there are two supporting rollers (55) and they are respectively located directly below the squeezing roller (53) and the heating roller (54).

6. The fully automatic corrugated board laminating machine according to claim 1, characterized in that: It also comprises a material receiving box (8) and a slide rail (9), wherein the slide rail (9) is arranged on the upper surface of the operating table (1), and the material receiving box (8) is slidably connected to the slide rail (9).

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