Suitcase film covering device and film covering method thereof

By designing the luggage fixing and positioning components of the box-clothing coating device, the automated coating of the travel code box is realized, solving the problems of long cycles and uneven rolling caused by manual operations in the prior art, and improving the coating efficiency and effect.

CN119871878AInactive Publication Date: 2025-04-25JIANGXI FULAIYA LUGGAGE CO LTD
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Patent Information

Application Number
CN202510209102.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2025-04-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing travel code box coating device has a simple structure and requires manual bonding and rotating of the protective film, resulting in a long period and uneven coating of the protective film.

Method used

A box-closing device is designed, including a bag fixing assembly and a positioning assembly. The bag rotation and protective film are automatically controlled by the coated motor and transmission structure to realize automatic coating.

Benefits of technology

It improves the degree of automation of the coating, reduces labor investment, ensures uniform coating of the protective film, and improves the coating effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of bag packaging, in particular to a bag film covering device and a film covering method.The bag film covering device comprises a base, a plurality of moving wheels, a mounting seat, a controller and a film covering table and further comprises a film seat, a film releasing roller, a bag fixing assembly and a position adjusting assembly, the film seat is movably arranged on the mounting seat, and the film releasing roller is arranged on the film seat; the film releasing roller is movably arranged on the film seat, the bag fixing assembly is arranged on the film laminating table and used for fixing bags on the film laminating table and controlling the film laminating table to rotate, and the position adjusting assembly is arranged on the mounting seat and used for adjusting the position of the film releasing roller and driving the film releasing roller to rotate; the whole device is high in automation degree, the traditional working mode of manually assisting the luggage and controlling the luggage to rotate for film rolling is eliminated, the input amount of labor force is reduced, and compared with the mode of manually assisting film rolling, the device can ensure that the protective film is uniformly rolled on the surface of the luggage.
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Description

Technical Field

[0001] The present invention relates to the technical field of bag packaging, and more specifically, to a bag film laminating device and a film laminating method thereof. Background Art

[0002] Luggage is a general term for bags, which is a general term for various bags used to carry things, including general shopping bags, handbags, clutches, wallets, backpacks, shoulder bags, shoulder bags, waist bags and various trolley cases, etc. Lamination can provide more comprehensive protection for the exterior of luggage, and is an extremely important processing link in luggage processing operations. Among them, travel password boxes are one of the most common types of luggage in daily life.

[0003] In the process of coating the surface of the travel lock box, the most common method is to roll several layers of protective film on the surface of the travel lock box by rolling, so as to protect the travel lock box. However, the existing rolling coating device has the following defects: The existing film coating device for travel password cases has a simple structure, and requires staff to manually bond the free end of the protective film to the case, and then manually rotate the travel password case so that the protective film can be rolled onto the surface of the case. However, the manual assisted film rolling method not only requires a long cycle, but also causes uneven rolling of the protective film on the surface of the case, affecting the rolling effect. Summary of the invention

[0004] The object of the present invention is to provide a box bag coating device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A bag film coating device comprises a base, a plurality of moving wheels, a mounting seat, a controller and a film coating platform, wherein the plurality of moving wheels are symmetrically arranged on the base, the mounting seat is arranged on the base, the controller is arranged on the mounting seat, the film coating platform is movably arranged on the base through a telescopic cylinder, the film coating device further comprises a film seat, a film placing roller, a bag fixing component and a position adjustment component, the film seat is movably arranged on the mounting seat, the film placing roller is movably arranged on the film seat, the bag fixing component is arranged on the film coating platform, and is used to fix the bag on the film coating platform and control the rotation of the film coating platform, and the position adjustment component is arranged on the mounting seat, and is used to adjust the position of the film placing roller and drive the film placing roller to rotate; The luggage fixing assembly includes a laminating motor, a No. 1 transmission wheel, a No. 1 belt and several groups of limit modules. The laminating motor is arranged on a base. Two No. 1 transmission wheels are movably arranged on the base. One of the No. 1 transmission wheels is connected to the output end of the laminating motor, and the other No. 1 transmission wheel is connected to the telescopic cylinder. The No. 1 transmission wheels are connected by a No. 1 belt. Several groups of limit modules are symmetrically arranged on the laminating platform. When the laminating platform is subjected to the gravity of the luggage, the limit modules are controlled to work and fix the luggage.

[0006] A further technical solution of the present application is as follows: each group of the limiting modules includes a locking wheel seat, a wheel groove, a clamping plate and a detection and adjustment member; a plurality of mounting grooves are symmetrically formed on the laminating table; the locking wheel seat is arranged in the mounting groove; the wheel groove is arranged on the locking wheel seat; the clamping plates are in one group and are symmetrically and movably arranged in the wheel groove; the detection and adjustment member is arranged on the locking wheel seat and connected to the clamping plate, so as to detect the distance between the laminating table and the base and adjust the distance between the clamping plates.

[0007] A further technical solution of the present application is as follows: the wheel lock seat is movably arranged in an installation groove, a limiting block is arranged in the installation groove, an adjustment groove is formed on the wheel lock seat for slidingly cooperating with the limiting block, and the wheel lock seat is elastically connected to the inner wall of the installation groove on all sides.

[0008] A further technical solution of the present application is as follows: the detection and adjustment component includes a trapezoidal block No. 1, a trapezoidal block No. 2, a roller and a skateboard; the trapezoidal block No. 1 is movably arranged on the wheel locking seat and connected to the splint; the trapezoidal block No. 2 is movably arranged on the wheel locking seat; the inclined surfaces of the trapezoidal block No. 1 and the trapezoidal block No. 2 are slidably matched; the skateboard is movably arranged on the wheel locking seat and the two are elastically connected; the roller is movably arranged on an end of the skateboard away from the trapezoidal block No. 2; and the base and the roller are slidably matched.

[0009] The present application has a further technical solution: the positioning assembly includes a lifting seat, a driving motor, a reciprocating screw, a transmission structure and a power supply structure; the lifting seat is movably arranged on a guide groove formed on the mounting seat; the lifting seat is connected to the film seat; the reciprocating screw is movably arranged on the mounting seat; the reciprocating screw slides through the film seat and the two are threadedly matched; the power supply structure is arranged on the mounting seat; the transmission structure is arranged on the lifting seat and connects the film placing roller and the power supply structure; the film placing roller controls the operation of the power supply structure when moving along the reciprocating screw; the operation of the power supply structure controls the operation of the transmission structure to drive the film placing roller to rotate.

[0010] The present application has a further technical solution: the transmission structure includes a No. 2 transmission wheel, a No. 2 belt, a driving wheel and a driven wheel, the No. 2 transmission wheel is movably arranged on the lifting seat and the film seat, the No. 2 transmission wheel on the film seat is coaxially connected to the film placing roller, the No. 2 transmission wheel on the lifting seat is coaxially connected to the driven wheel, the driving wheel is movably arranged on the lifting seat and meshes with the driven wheel, the driving wheel and the driven wheel are both bevel gears, the driving wheel is connected to the power supply structure, and the No. 2 belt is connected between the No. 2 transmission wheels.

[0011] The present application has a further technical solution: the power supply structure includes a gear, a differential, a group of racks, an adjustment seat, a second electric telescopic rod and a slider, the gear is movably arranged on the lifting seat and is connected to the driving wheel through the differential, the adjustment seat is arranged on the mounting seat, a group of the racks are symmetrically and movably arranged on the adjustment seat, the slider is movably arranged on the adjustment seat and located between the racks, the racks and the slider are connected, one of the racks is meshed with the gear, and the second electric telescopic rod is arranged on the adjustment seat and its movable end is connected to the slider.

[0012] A further technical solution of the present application: the coating device also includes a film feeding assembly, which is used to connect the free end of the protective film on the film placing roller and feed it into the position of the coating table. The film feeding assembly includes a guide rail frame, a spring, a winding roller, a positioning motor and a film clamping member. The guide rail frame is arranged on the base, and the film clamping member is movably arranged on the guide rail frame for clamping the free end of the protective film. The winding roller is movably arranged on the guide rail frame and is located on one side of the coating table. The winding roller is connected to the movable seat by a connecting rope. The positioning motor is arranged on the guide rail frame and its output end is connected to the winding roller. The spring is arranged on the end of the guide rail frame away from the winding roller, and the free end of the spring is connected to the film clamping member.

[0013] A further technical solution of the present application is as follows: the membrane clamping member includes a movable seat, a clamping frame and a No. 1 electric telescopic rod, the movable seat is movably arranged on the guide rail frame and is connected to the free end of the spring, the clamping frame slides through the movable seat, the No. 1 electric telescopic rod is arranged on the movable seat and its movable end is connected to the clamping frame.

[0014] A film coating method for a box package is applied to the film coating device described in the above technical solution. The specific steps of the film coating method are as follows: S100: Place the bag on the laminating table, and roll up the protective film on the film release roller. When the laminating table detects the presence of the bag, the limit module is controlled to clamp and fix the wheel body of the bag. S200: Connect the free end of the protective film to the surface of the bag, control the laminating motor to rotate through the controller, drive the No. 1 transmission wheel to rotate, and under the action of the No. 1 belt, the laminating table can be controlled to rotate, thereby controlling the rotation of the bag; S300: The controller controls the positioning components to work synchronously, thereby controlling the film holder and the film placing roller to reciprocate in the vertical direction, so that the protective film is rolled onto the surface of the bag to achieve the coating process of the bag.

[0015] Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects: The embodiment of the present invention provides a bag fixing component, so that when the bag is placed on the laminating table, the laminating table is affected by the gravity of the bag, automatically controls the detection and adjustment part in the bag fixing component to work, controls the operation of the No. 2 trapezoidal block, and realizes the automatic fixing of the bag under the cooperation between the No. 1 trapezoidal block and the No. 2 trapezoidal block, and utilizes the laminating motor to automatically control the rotation of the bag to roll on the protective film. The whole device has a high degree of automation, gets rid of the traditional working method of manually assisting the bag and controlling the rotation of the bag to roll on the film, reduces the labor input, and compared with the manual film rolling method, the device can ensure that the protective film is evenly rolled on the surface of the bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a box bag coating device in an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a bag fixing assembly in a bag laminating device according to an embodiment of the present invention; Figure 3 It is a bottom view of a film laminating table in a box and bag film laminating device in an embodiment of the present invention; Figure 4 It is a schematic structural diagram of a limit module in a bag laminating device according to an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a film conveying assembly in a box bag film coating device according to an embodiment of the present invention; Figure 6 It is a structural schematic diagram of a positioning assembly in a bag film coating device according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the structure of the transmission structure in the box bag coating device in an embodiment of the present invention; Figure 8 It is a structural schematic diagram of the power supply structure in the box bag coating device in an embodiment of the present invention.

[0017] Explanation of the symbols in the schematic diagram: 1-base, 2-moving wheel, 3-laminating table, 4-laminating motor, 5-No. 1 transmission wheel, 6-No. 1 belt, 7-locking wheel seat, 8-installation slot, 9-roller, 10-clamp plate, 11-wheel slot, 12-No. 1 trapezoidal block, 13-No. 2 trapezoidal block, 14-limiting block, 15-adjusting slot, 16-guide rail frame, 17-spring, 18-adjusting motor, 19-winding roller, 20-moving seat, 21- Clamping frame, 22-No. 1 electric telescopic rod, 23-mounting seat, 24-driving motor, 25-reciprocating screw, 26-film placing roller, 27-film seat, 28-lifting seat, 29-driven wheel, 30-No. 2 transmission wheel, 31-No. 2 belt, 32-guide groove, 33-driving wheel, 34-gear, 35-differential, 36-adjusting seat, 37-No. 2 electric telescopic rod, 38-slider, 39-rack. DETAILED DESCRIPTION

[0018] 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. The present invention is further described below in combination with the embodiments.

[0019] See also Figure 1-Figure 8 In one embodiment of the present application, a bag coating device includes a base 1, a plurality of moving wheels 2, a mounting seat 23, a controller and a coating platform 3, wherein the plurality of moving wheels 2 are symmetrically arranged on the base 1, the mounting seat 23 is arranged on the base 1, the controller is arranged on the mounting seat 23, the coating platform 3 is movably arranged on the base 1 through a telescopic cylinder, the coating device also includes a film seat 27, a film placing roller 26, a bag fixing component and a position adjustment component, the film seat 27 is movably arranged on the mounting seat 23, the film placing roller 26 is movably arranged on the film seat 27, the bag fixing component is arranged on the coating platform 3, and is used to fix the bag on the coating platform 3 and control the rotation of the coating platform 3, and the position adjustment component is arranged on the mounting seat 23, and is used to adjust the position of the film placing roller 26 and drive the film placing roller 26 to rotate; The luggage fixing assembly includes a laminating motor 4, a No. 1 transmission wheel 5, a No. 1 belt 6 and several groups of limit modules. The laminating motor 4 is arranged on a base 1. Two No. 1 transmission wheels 5 are movably arranged on the base 1. One of the No. 1 transmission wheels 5 is connected to the output end of the laminating motor 4, and the other No. 1 transmission wheel 5 is connected to the telescopic cylinder. The No. 1 transmission wheels 5 are connected by a No. 1 belt 6. Several groups of limit modules are symmetrically arranged on the laminating table 3. When the laminating table 3 is subjected to the gravity of the luggage, the limit modules are controlled to work and fix the luggage.

[0020] In the present exemplary embodiment, each group of the limiting modules includes a locking wheel seat 7, a wheel groove 11, a clamping plate 10 and a detection and adjustment member. A plurality of mounting grooves 8 are symmetrically formed on the laminating table 3. The locking wheel seat 7 is arranged in the mounting groove 8. The wheel groove 11 is arranged on the locking wheel seat 7. The clamping plates 10 are in one group and are symmetrically and movably arranged in the wheel groove 11. The detection and adjustment member is arranged on the locking wheel seat 7 and connected to the clamping plate 10, so as to detect the distance between the laminating table 3 and the base 1 and adjust the distance between the clamping plates 10.

[0021] In actual application, the bags are placed on the laminating table 3, the protective film is rolled up on the film placing roller 26, and the wheel body at the bottom of the bags is inserted into the wheel groove 11 of the locking wheel seat 7. Since the bags have their own gravity, the laminating table 3 can be driven to move relative to the base 1 under the action of the gravity of the bags, thereby controlling the operation of the detection and positioning parts. The detection and positioning parts can control the relative movement between the clamping plates 10 and clamp and fix the bags. The laminating motor 4 is controlled to rotate by the controller to drive the No. 1 transmission wheel 5 to rotate. Under the action of the No. 1 belt 6, the laminating table 3 can be controlled to rotate, and then the rotation of the bags can be controlled; the positioning components are controlled to work synchronously by the controller, thereby controlling the film seat 27 and the film placing roller 26 to reciprocate in the vertical direction, thereby rolling the protective film on the surface of the bags to realize the laminating processing of the bags.

[0022] See also Figure 1-Figure 4 As another preferred embodiment of the present application, the wheel lock seat 7 is movably arranged in the mounting groove 8, a limiting block 14 is arranged in the mounting groove 8, and an adjustment groove 15 is formed on the wheel lock seat 7 for slidingly cooperating with the limiting block 14, and the wheel lock seat 7 is elastically connected to the inner wall of the mounting groove 8 on all sides.

[0023] In the present exemplary embodiment, the detection and adjustment component includes a trapezoidal block No. 12, a trapezoidal block No. 2 13, a roller 9 and a skateboard. The trapezoidal block No. 12 is movably arranged on the wheel lock seat 7 and is connected to the splint 10. The trapezoidal block No. 2 13 is movably arranged on the wheel lock seat 7. The inclined surfaces of the trapezoidal block No. 12 and the trapezoidal block No. 2 13 are slidably matched. The skateboard is movably arranged on the wheel lock seat 7 and the two are elastically connected. The roller 9 is movably arranged on one end of the skateboard away from the trapezoidal block No. 2 13. The base 1 and the roller 9 are slidably matched.

[0024] It should be noted that the present embodiment is not limited to the above-mentioned detection and adjustment member to adjust the position of the clamping plate 10, and a linear motor or a cylinder may be used instead, which are not listed here one by one.

[0025] In actual application, by setting the cooperation between the limit block 14 and the limit groove, the movement of the locking wheel seat 7 can be facilitated, which is convenient for adapting to bags of different sizes and clamping and fixing them. The wheel body of the bag is installed in the wheel groove 11 and under the action of the gravity of the bag, the coating platform 3 can be driven to move downward and make the roller 9 and the base 1 conflict with each other, drive the slide plate to move and drive the second trapezoidal block 13 to move synchronously. Under the sliding cooperation between the second trapezoidal block 13 and the first trapezoidal block 12, the first trapezoidal block 12 and the clamping plate 10 can be driven to move relative to the locking wheel seat 7, so that the clamping plates 10 move toward each other and clamp and fix the bag, thereby ensuring the stability of the bag during the process of rolling the protective film.

[0026] See also Figure 1 , Figure 6 , Figure 7 as well as Figure 8 As another preferred embodiment of the present application, the positioning assembly includes a lifting seat 28, a driving motor 24, a reciprocating screw 25, a transmission structure and a power supply structure. The lifting seat 28 is movably arranged on a guide groove 32 formed on the mounting seat 23. The lifting seat 28 is connected to the film seat 27. The reciprocating screw 25 is movably arranged on the mounting seat 23. The reciprocating screw 25 slides through the film seat 27 and the two are threadedly matched. The power supply structure is arranged on the mounting seat 23. The transmission structure is arranged on the lifting seat 28 and connects the film placing roller 26 and the power supply structure. When the film placing roller 26 moves along the reciprocating screw 25, the power supply structure is controlled to work. The power supply structure controls the transmission structure to drive the film placing roller 26 to rotate.

[0027] In a specific case of the present embodiment, the transmission structure includes a No. 2 transmission wheel 30, a No. 2 belt 31, a driving wheel 33 and a driven wheel 29. The No. 2 transmission wheel 30 is movably provided on the lifting seat 28 and the film seat 27. The No. 2 transmission wheel 30 on the film seat 27 is coaxially connected to the film placing roller 26. The No. 2 transmission wheel 30 on the lifting seat 28 is coaxially connected to the driven wheel 29. The driving wheel 33 is movably provided on the lifting seat 28 and meshes with the driven wheel 29. The driving wheel 33 and the driven wheel 29 are both bevel gears 34. The driving wheel 33 is connected to the power supply structure. The No. 2 belt 31 is connected between the No. 2 transmission wheels 30.

[0028] In another specific case of this embodiment, the power supply structure includes a gear 34, a differential 35, a group of racks 39, an adjustment seat 36, a second electric telescopic rod 37 and a slider 38. The gear 34 is movably arranged on the lifting seat 28 and is connected to the driving wheel 33 through the differential 35. The adjustment seat 36 is arranged on the mounting seat 23. A group of racks 39 are symmetrically and movably arranged on the adjustment seat 36. The slider 38 is movably arranged on the adjustment seat 36 and is located between the racks 39. The racks 39 and the slider 38 are connected, one of the racks 39 is meshed with the gear 34, and the second electric telescopic rod 37 is arranged on the adjustment seat 36 and its movable end is connected to the slider 38.

[0029] In actual application, the controller controls the driving motor 24 to be powered on and rotated, driving the reciprocating screw 25 to rotate. Under the action of the threaded cooperation between the reciprocating screw 25 and the film seat 27, the film seat 27 and the lifting seat 28 can be driven to reciprocate in the vertical direction. In this process, through the meshing action between one of the racks 39 and the gear 34, the gear 34 and the driving wheel 33 can be driven to rotate. Under the meshing action between the driving wheel 33 and the driven wheel 29, the driven wheel 29 can be driven to rotate. Under the action of the No. 2 transmission wheel 30 and the No. 2 belt 31, the film placing roller 26 is controlled to rotate to release the protective film and coat the surface of the luggage. When the lifting seat 28 and the film seat 27 move to the extreme position, the No. 2 electric telescopic rod 37 is controlled to be powered on and extended, thereby driving the slider 38 to move along the adjustment seat 36, and switching the two racks 39 to mesh with the gear 34 respectively to ensure that the gear 34 and the film placing roller 26 rotate in one direction. See also Figure 1 as well as Figure 5 As another preferred embodiment of the present application, the coating device also includes a film feeding assembly for connecting the free end of the protective film on the film placing roller 26 and feeding it into the position of the coating table 3. The film feeding assembly includes a guide frame 16, a spring 17, a winding roller 19, a positioning motor 18 and a film clamping member. The guide frame 16 is arranged on the base 1. The film clamping member is movably arranged on the guide frame 16 for clamping the free end of the protective film. The winding roller 19 is movably arranged on the guide frame 16 and is located on one side of the coating table 3. The winding roller 19 is connected to the movable seat 20 through a connecting rope. The positioning motor 18 is arranged on the guide frame 16 and its output end is connected to the winding roller 19. The spring 17 is arranged on the end of the guide frame 16 away from the winding roller 19, and the free end of the spring 17 is connected to the film clamping member.

[0030] In this exemplary embodiment, the film clamping member includes a moving seat 20, a clamping frame 21 and a No. 1 electric telescopic rod 22. The moving seat 20 is movably set on the guide rail frame 16 and connected to the free end of the spring 17. The clamping frame 21 slides through the moving seat 20. The No. 1 electric telescopic rod 22 is set on the moving seat 20 and its movable end is connected to the clamping frame 21.

[0031] In actual application, the free end of the protective film on the film placing roller 26 is placed between the movable seat 20 and the clamping frame 21, and the No. 1 electric telescopic rod 22 is controlled to be energized and extended, thereby driving the clamping frame 21 to move relative to the movable seat 20, so that the free end of the protective film can be clamped and fixed, and the winding roller 19 is driven to rotate by controlling the positioning motor 18 to reel in the connecting rope, thereby driving the movable seat 20 to move along the guide rail frame 16, so that the free end of the protective film can be transported to the position of the luggage, and the staff manually bonds the luggage and the protective film, without the need for the staff to manually tear the film and transport it to the luggage.

[0032] See also Figure 1-Figure 8 In another embodiment of the present application, a film coating method for a box package is applied to the film coating device described in the above embodiment, and the specific steps of the film coating method are as follows: S100: placing the bag on the laminating table 3, and rolling up the protective film on the film placing roller 26. When the laminating table 3 detects the presence of the bag, the limiting module is controlled to clamp and fix the wheel body of the bag. S200: Connect the free end of the protective film to the surface of the bag, control the laminating motor 4 to rotate through the controller, drive the No. 1 transmission wheel 5 to rotate, and under the action of the No. 1 belt 6, the laminating table 3 can be controlled to rotate, thereby controlling the bag to rotate; S300: The controller controls the positioning components to work synchronously, thereby controlling the film holder 27 and the film placing roller 26 to reciprocate in the vertical direction, so that the protective film is rolled onto the surface of the bag to achieve the coating process of the bag.

[0033] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention. In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bag laminating device, comprising a base, a plurality of moving wheels, a mounting seat, a controller and a laminating table, wherein the plurality of moving wheels are symmetrically arranged on the base, the mounting seat is arranged on the base, the controller is arranged on the mounting seat, and the laminating table is movably arranged on the base through a telescopic cylinder, characterized in that: The laminating device also includes a film seat, a film placing roller, a bag fixing component and a position adjustment component. The film seat is movably arranged on the mounting seat, the film placing roller is movably arranged on the film seat, the bag fixing component is arranged on the laminating table, and is used to fix the bag on the laminating table and control the rotation of the laminating table. The position adjustment component is arranged on the mounting seat, and is used to adjust the position of the film placing roller and drive the film placing roller to rotate. The luggage fixing assembly includes a laminating motor, a No. 1 transmission wheel, a No. 1 belt and several groups of limit modules. The laminating motor is arranged on a base. Two No. 1 transmission wheels are movably arranged on the base. One of the No. 1 transmission wheels is connected to the output end of the laminating motor, and the other No. 1 transmission wheel is connected to the telescopic cylinder. The No. 1 transmission wheels are connected by a No. 1 belt. Several groups of limit modules are symmetrically arranged on the laminating platform. When the laminating platform is subjected to the gravity of the luggage, the limit modules are controlled to work and fix the luggage.

2. The box bag laminating device according to claim 1, characterized in that: Each group of the limiting modules includes a locking wheel seat, a wheel groove, a clamping plate and a detection and adjustment member. The laminating platform is symmetrically formed with a plurality of mounting grooves. The locking wheel seat is arranged in the mounting groove, and the wheel groove is arranged on the locking wheel seat. The clamping plates are in one group and are symmetrically and movably arranged in the wheel groove. The detection and adjustment member is arranged on the locking wheel seat and connected to the clamping plate, so as to detect the distance between the laminating platform and the base and adjust the distance between the clamping plates.

3. The box bag coating device according to claim 2, characterized in that: The wheel lock seat is movably arranged in the installation groove, a limiting block is arranged in the installation groove, and an adjustment groove for slidingly cooperating with the limiting block is formed on the wheel lock seat. The four sides of the wheel lock seat are elastically connected to the inner wall of the installation groove.

4. The box bag laminating device according to claim 2, characterized in that: The detection and adjustment component includes a trapezoidal block No. 1, a trapezoidal block No. 2, a roller and a skateboard. The trapezoidal block No. 1 is movably arranged on the locking wheel seat and connected to the clamping plate. The trapezoidal block No. 2 is movably arranged on the locking wheel seat. The inclined surfaces of the trapezoidal block No. 1 and the trapezoidal block No. 2 are slidably matched. The skateboard is movably arranged on the locking wheel seat and the two are elastically connected. The roller is movably arranged on an end of the skateboard away from the trapezoidal block No. 2, and the base and the roller are slidably matched.

5. The box bag laminating device according to claim 1, characterized in that: The positioning assembly includes a lifting seat, a driving motor, a reciprocating screw, a transmission structure and a power supply structure. The lifting seat is movably arranged on a guide groove formed on the mounting seat. The lifting seat is connected to the film seat. The reciprocating screw is movably arranged on the mounting seat. The reciprocating screw slides through the film seat and the two are threadedly matched. The power supply structure is arranged on the mounting seat. The transmission structure is arranged on the lifting seat and connects the film placing roller and the power supply structure. When the film placing roller moves along the reciprocating screw, the power supply structure is controlled to work. The power supply structure controls the transmission structure to work to drive the film placing roller to rotate.

6. The box bag coating device according to claim 5, characterized in that: The transmission structure includes a No. 2 transmission wheel, a No. 2 belt, a driving wheel and a driven wheel. The No. 2 transmission wheel is movably arranged on the lifting seat and the film seat. The No. 2 transmission wheel on the film seat is coaxially connected to the film placing roller. The No. 2 transmission wheel on the lifting seat is coaxially connected to the driven wheel. The driving wheel is movably arranged on the lifting seat and meshes with the driven wheel. The driving wheel and the driven wheel are both bevel gears. The driving wheel is connected to the power supply structure, and the No. 2 belt is connected between the No. 2 transmission wheels.

7. The box bag coating device according to claim 6, characterized in that: The power supply structure includes a gear, a differential, a group of racks, an adjustment seat, a second electric telescopic rod and a slider. The gear is movably arranged on the lifting seat and is connected to the driving wheel through the differential. The adjustment seat is arranged on the mounting seat. A group of racks are symmetrically and movably arranged on the adjustment seat. The slider is movably arranged on the adjustment seat and located between the racks. The racks are connected to the slider, and one of the racks is meshed with the gear. The second electric telescopic rod is arranged on the adjustment seat and its movable end is connected to the slider.

8. The box bag laminating device according to claim 1, characterized in that: The coating device also includes a film feeding assembly for connecting the free end of the protective film on the film placing roller and feeding it into the position of the coating table. The film feeding assembly includes a guide rail frame, a spring, a winding roller, a positioning motor and a film clamping member. The guide rail frame is arranged on the base. The film clamping member is movably arranged on the guide rail frame for clamping the free end of the protective film. The winding roller is movably arranged on the guide rail frame and is located on one side of the coating table. The winding roller is connected to the movable seat by a connecting rope. The positioning motor is arranged on the guide rail frame and its output end is connected to the winding roller. The spring is arranged on the end of the guide rail frame away from the winding roller, and the free end of the spring is connected to the film clamping member.

9. The box bag laminating device according to claim 8, characterized in that: The film clamping member includes a moving seat, a clamping frame and a No. 1 electric telescopic rod. The moving seat is movably arranged on the guide rail frame and connected to the free end of the spring. The clamping frame slides through the moving seat. The No. 1 electric telescopic rod is arranged on the moving seat and its movable end is connected to the clamping frame.

10. A method for laminating a box package, applied to the laminating device according to claim 1, characterized in that: The specific steps of the coating method are as follows: S100: Place the bag on the laminating table, and roll up the protective film on the film release roller. When the laminating table detects the presence of the bag, the limit module is controlled to clamp and fix the wheel body of the bag. S200: Connect the free end of the protective film to the surface of the bag, control the laminating motor to rotate through the controller, drive the No. 1 transmission wheel to rotate, and under the action of the No. 1 belt, the laminating table can be controlled to rotate, thereby controlling the rotation of the bag; S300: The controller controls the positioning components to work synchronously, thereby controlling the film holder and the film placing roller to reciprocate in the vertical direction, so that the protective film is rolled onto the surface of the bag to achieve the coating process of the bag.