Film coating equipment

Abstract

A product to be coated is provided with a top surface, a bottom surface and a side surface, a film body is provided with a main body part and a convex lug, the film coating equipment comprises a turnover device and a carrying device, the turnover device comprises a support frame and a turnover seat rotationally arranged on the support frame, and the carrying device is arranged on the turnover seat. The overturning base is used for overturning the to-be-coated product attached with the film body, so that the bottom surface of the to-be-coated product faces upwards, the overturning base is provided with a first edge folding structure used for driving the convex lugs to be bent and attached to the side surfaces, and the carrying device comprises a carrying base; the carrying seat is used for carrying away the product to be coated from the overturning seat and transferring the product to be coated, the carrying seat is provided with a first bending piece used for driving the convex lug extending to the position above the bottom face to be attached to the bottom face, and the first bending piece is movably arranged on the carrying seat; and film coating treatment can be synchronously carried out in the process of overturning and carrying the to-be-coated product, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a film wrapping device. Background Art

[0002] In the prior art, for products such as notebook batteries, etc., it is usually necessary to apply a film on their surfaces, and the film body is wrapped around the product to be film-wrapped by hemming, so as to paste trademarks subsequently, or to form protection for the product to be film-wrapped to avoid being damaged during transportation. When hemming is carried out after the film is attached to the product surface, the product is usually turned upside down by a turning mechanism, and then the turned product is transferred by a handling mechanism. After that, a hemming mechanism is used to hem and wrap the film body attached to the product to be film-wrapped along at least two directions successively. This method has low working efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to provide a new film wrapping device.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a film wrapping device, the product to be film-wrapped has a top surface and a bottom surface which are oppositely arranged, and a side surface located between the top surface and the bottom surface, the film body has a main body portion attached to the top surface and a lug extending outward from the main body portion, and the film wrapping device includes:

[0005] A turning device, including a support frame and a turning seat rotatably arranged on the support frame, the turning seat is used for turning the product to be film-wrapped with the film body attached thereto, so that the bottom surface of the product to be film-wrapped faces upward, the turning seat is provided with a first adsorption mechanism and a first hemming structure, the first adsorption mechanism forms a first adsorption plane, when the turning seat adsorbs the product to be film-wrapped, the top surface with the film body attached thereto is adsorbed on the first adsorption plane; the first hemming structure is used for driving the lug to bend and attach to the side surface, along a direction perpendicular to the first adsorption plane, the first hemming structure protrudes and extends outward from the turning seat, and the first hemming structure extends beyond the first adsorption plane;

[0006] A handling device, including a handling seat, the handling seat is used for moving the product to be film-wrapped away from the turning seat and transferring the product to be film-wrapped, the handling seat is provided with a second adsorption mechanism, the second adsorption mechanism forms a second adsorption plane facing downward and used for adsorbing the product to be film-wrapped, the handling device includes a first bending member, the first bending member is movably arranged on the handling seat, a first roller is rotatably arranged at the lower part of the first bending member, and the first roller is configured to be able to roll on the product to be film-wrapped and drive the lug extending above the bottom surface to attach to the bottom surface.

[0007] In some embodiments, along a direction perpendicular to the first adsorption plane, there is a first spacing between the free end of the first hemming structure and the first adsorption plane, and the first spacing is equal to the thickness of the product to be enveloped, or the first spacing is slightly larger than the thickness of the product to be enveloped.

[0008] In some embodiments, the bottom of the first roller is flush with the second adsorption plane, or the bottom of the first roller is slightly lower than the second adsorption plane.

[0009] In some embodiments, the first bending member includes a main body portion and a driving portion. The driving portion is linearly movably arranged on the handling seat. The main body portion is arranged to be able to move up and down relative to the driving portion. The first roller is rotatably arranged at the lower part of the main body portion. A first elastic member is arranged between the driving portion and the main body portion, and the first elastic member is used to provide the acting force required for the main body portion to move downward.

[0010] In some embodiments, the enveloping device further includes a hemming station. The handling seat is used to transfer the turned-over product to be enveloped from the turning seat to the hemming station. A supporting plane is provided at the hemming station. When the product to be enveloped is at the hemming station, the top surface is supported on the supporting plane and the bottom surface faces upward. A second bending member is movably arranged at the hemming station. The moving direction of the first bending member intersects with the moving direction of the second bending member. A second roller is rotatably arranged at the lower part of the second bending member. The second roller is configured to drive the lug extending above the bottom surface to adhere to the bottom surface of the product to be enveloped. There is a second spacing between the bottom of the second roller and the supporting plane, and the second spacing is equal to the thickness of the product to be enveloped, or the second spacing is slightly smaller than the thickness of the product to be enveloped.

[0011] In some embodiments, the second bending member includes a moving frame and a roller frame. The moving frame is arranged to be able to move linearly. The roller frame is arranged to be able to move up and down relative to the moving frame. The second roller is rotatably arranged at the lower part of the roller frame. A second elastic member is arranged between the moving frame and the roller frame, and the second elastic member is used to provide the acting force required for the roller frame to move downward.

[0012] In some embodiments, a second hemming structure for driving the lug to bend upward is provided at the hemming station, and the second hemming structure protrudes upward and extends from the supporting plane.

[0013] In some embodiments, the height of the second hemming structure is slightly smaller than the thickness of the product to be enveloped.

[0014] In some embodiments, a guiding structure is provided at the hemming station. The guiding structure protrudes upwardly from the supporting plane, and a receiving groove for receiving the product to be coated with a film is formed between the guiding structure and the second hemming structure.

[0015] In some embodiments, the side surface includes a first side surface and a second side surface. The extending direction of the first side surface is perpendicular to the extending direction of the second side surface. When the product to be coated with a film is located on the carrying seat, the moving direction of the first bending member is perpendicular to the extending direction of the first side surface; when the product to be coated with a film is located at the hemming station, the moving direction of the second bending member is perpendicular to the extending direction of the second side surface.

[0016] In some embodiments, the film coating device includes a loading station. The flipping seat adsorbs the product to be coated with a film from the loading station. A slot for inserting the first hemming structure is provided at the loading station. The slot opening faces upward. When the product to be coated with a film is located at the loading station, the film is attached to the top surface and faces upward, and the lug is located above the slot.

[0017] Due to the application of the above technical solutions, the present utility model has the following advantages compared with the prior art: The film coating device of the present utility model can synchronously perform hemming and coating processes on the lug of the film body when flipping and carrying the product to be coated with a film, greatly improving the working efficiency of the device. Description of the Drawings

[0018] Att Figure 1 is a three-dimensional structural schematic diagram of the film coating device according to Embodiment 1 of the present utility model;

[0019] Att Figure 2 is a schematic diagram of the loading station in the film coating device of Embodiment 1;

[0020] Att Figure 3 is a schematic diagram of the flipping device of Embodiment 1;

[0021] Att Figure 4 is a schematic diagram of the carrying device of Embodiment 1;

[0022] Att Figure 5 is for Att Figure 4 a schematic diagram of a partial structure in;

[0023] Att Figure 6 is a schematic diagram of the hemming station in the film coating device of Embodiment 1;

[0024] Att Figure 7 is a schematic diagram of the second bending member of Embodiment 1;

[0025] Att Figure 8 is for AttFigure 6 Schematic diagram of part of the structure in

[0026] Appendix Figure 9 It is the appendix Figure 8 Schematic diagram after removing the product to be coated

[0027] Appendix Figure 10 Schematic diagram at the loading station of the coating equipment in Embodiment 2

[0028] Appendix Figure 11 Schematic diagram of the flipping device in Embodiment 2

[0029] Appendix Figure 12 Schematic diagram of part of the structure of the handling device in Embodiment 2

[0030] Appendix Figure 13 Schematic diagram at the hemming station of the coating equipment in Embodiment 2

[0031] Appendix Figure 14 It is the appendix Figure 13 Schematic diagram of part of the structure in

[0032] Appendix Figure 15 It is the appendix Figure 14 Schematic diagram after removing the product to be coated

[0033] Wherein: 101, product to be coated; 110, loading station; 111, slot; 120, hemming station; 121, support plane;

[0034] 200, flipping device; 210, flipping seat; 211, first suction nozzle; 212, first protrusion; 220, lifting seat; 230, support frame;

[0035] 300, handling device; 310, handling seat; 311, second suction nozzle; 320, first bending member; 321, main body part; 322, first roller; 323, driving part; 330, transmission track; 340, transmission mechanism; 350, lifting frame;

[0036] 410, second bending member; 411, moving frame; 412, roller frame; 413, second roller; 420, second protrusion; 430, guiding structure. Detailed implementation manners

[0037] The following combines the drawings and specific embodiments to elaborate on the technical solutions of the present invention in detail, so that the advantages and features of the present invention are more easily understood by those skilled in the art. Obviously, the described embodiments of the present application are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present application.

[0038] Example 1

[0039] Refer to Figure 1 A film coating device as shown, which can perform hemming and coating processes on the film body attached to the surface of the product 101 to be film-coated. Specifically, the product 101 to be film-coated has a top surface and a bottom surface arranged oppositely, and a side surface located between the top surface and the bottom surface. The film body has a main body portion attached to the top surface of the product 101 to be film-coated, and a lug extending outward from the main body portion. The film coating device can perform two hemming processes on the lug, so that the lug adheres to the side surface and the bottom surface of the product 101 to be film-coated.

[0040] The film coating device includes a turning device 200 and a handling device 300. Among them, the turning device 200 includes a support frame 230 and a turning seat 210 rotatably arranged on the support frame 230. The turning seat 210 is used to turn the product 101 to be film-coated with the film body attached, so that the bottom surface of the product 101 to be film-coated faces upward. The turning seat 210 is provided with a first adsorption mechanism and a first hemming structure. The first adsorption mechanism forms a first adsorption plane. When the turning seat 210 adsorbs the product 101 to be film-coated, the top surface with the film body attached is adsorbed on the first adsorption plane. Using the adsorption method to fix the product 101 to be film-coated can reduce the damage to the product 101 to be film-coated and also avoid disturbing the film body.

[0041] The first hemming structure is used to drive the lug to bend and adhere to the side surface. Along the direction perpendicular to the first adsorption plane, the first hemming structure protrudes outward from the turning seat 210 and extends beyond the first adsorption plane. During the process of the first adsorption mechanism adsorbing the product 101 to be film-coated, the product 101 to be film-coated and the turning seat 210 approach each other, and the first hemming structure drives the lug to bend along the thickness direction of the product 101 to be film-coated. When the product 101 to be film-coated is adsorbed on the turning seat 210, the first hemming structure abuts against the side surface of the product 101 to be film-coated, so that while performing the hemming process on the lug, the lug can be driven to adhere to the side surface of the product 101 to be film-coated.

[0042] The handling device 300 includes a handling seat 310. The handling seat 310 is used to move the product 101 to be film-coated away from the turning seat 210 and transfer the product 101 to be film-coated. The handling seat 310 is provided with a second adsorption mechanism. The second adsorption mechanism forms a second adsorption plane facing downward and used to adsorb the product 101 to be film-coated. The handling device 300 includes a first bending member 320. The first bending member 320 is movably arranged on the handling seat 310. A first roller 322 is rotatably arranged at the lower part of the first bending member 320. The first roller 322 can roll on the product 101 to be film-coated and drive the lug extending above the bottom surface to adhere to the bottom surface.

[0043] In this embodiment, the film coating device further includes a feeding station 110. The product 101 to be film-coated with a film body attached to its top surface is located at the feeding station 110, and the top surface of the product 101 to be film-coated faces upward. The flipping seat 210 is located above the feeding station 110 and can move up and down. The flipping seat 210 is used to obtain the product 101 to be film-coated from the feeding station 110 and flip the product 101 to be film-coated up and down. During the process of the flipping seat 210 moving downward to pick up the material, the first hemming structure drives the lug to bend downward and adhere to the side surface of the product 101 to be film-coated. Specifically, the first hemming structure is a first protrusion 212 protruding outward and extending from the flipping seat 210. When the flipping seat 210 moves downward to pick up the material, the first protrusion 212 extends downward, and the first protrusion 212 can push and guide the lug to bend downward.

[0044] In this embodiment, the flipping device 200 includes a support frame 230 and a lifting seat 220. The support frame 230 is fixedly arranged on the equipment main body, and the lifting seat 220 is arranged on the support frame 230 so as to be able to move up and down. The flipping seat 210 is rotationally connected to the lifting seat 220 by rotating around a horizontally extending rotation center line. Refer to Figure 3 As shown, a guide rail extending in the vertical direction is provided on the support frame 230, and a guiding member is provided on the lifting seat 220. The guiding member is slidably arranged on the guide rail. Through the cooperation between the guide rail and the guiding member, motion guidance is provided for the up and down movement of the lifting seat 220.

[0045] In this embodiment, a slot 111 for inserting the first hemming structure is provided at the feeding station 110. The notch of the slot 111 faces upward. When the product 101 to be film-coated is located at the feeding station 110, the lug is located above the slot 111. The setting of the slot 111 enables the first hemming structure to be inserted downward into the slot 111 during the process of the flipping seat 210 moving downward, which can not only avoid affecting the adsorption and fixation operation of the first adsorption mechanism, but also complete the first hemming and attaching treatment of the lug. In this embodiment, the carrier carrying the product 101 to be film-coated is transported to the feeding station 110 by the feeding mechanism, and the slot 111 is provided on the carrier.

[0046] In this embodiment, along the direction perpendicular to the first adsorption plane, there is a first distance between the free end of the first protrusion 212 and the first adsorption plane, and the first distance is equal to the thickness of the product 101 to be film-coated, ensuring that the bent film body can be firmly attached to the side part of the product 101 to be film-coated. In some preferred embodiments, the first distance is slightly larger than the thickness of the product 101 to be film-coated, further ensuring that the film body can be attached to the side part of the product 101 to be film-coated.

[0047] In this embodiment, after being processed by the first hemming structure and flipped by the flipping seat 210, the lug extends in the up and down direction and extends above the bottom surface. During the process of handling the product 101 to be wrapped, the bottom surface of the product 101 to be wrapped faces upward, and under the action of the second adsorption mechanism, the second adsorption plane is attached to the bottom surface of the product 101 to be wrapped.

[0048] In this embodiment, the first bending member 320 is movably arranged on the handling seat 310 along the first direction. The first roller 322 is rotatably arranged at the lower part of the first bending member 320 around the first rotation center line. The first rotation center line extends in the horizontal direction, and the extending direction of the first rotation center line is perpendicular to the first direction. Specifically, the first bending member 320 includes a main body portion 321 and a driving portion 323. The driving portion 323 is linearly movably arranged on the handling seat 310 along the first direction. The main body portion 321 is arranged to be able to move up and down relative to the driving portion 323. The first roller 322 is rotatably arranged at the lower part of the main body portion 321. In this embodiment, a first elastic member (not shown in the figure) is provided between the driving portion 323 and the main body portion 321. The first elastic member is used to provide the acting force required for the main body portion 321 to move downward. When the driving portion 323 moves along the first direction, the main body portion 321 follows the driving portion 323 to move along the first direction together, thereby driving the first roller 322 to roll along the first direction. By providing the first elastic member, the first roller 322 has a tendency to move downward, so that it can be pressed tightly against the product 101 to be wrapped, ensuring that the lug can be closely attached to the bottom surface of the product 101 to be wrapped.

[0049] In some embodiments, the bottom of the first roller 322 is flush with the second adsorption plane. Since the first roller 322 can move up and down, in some preferred embodiments, the bottom of the first roller 322 is slightly lower than the second adsorption plane. After the second adsorption mechanism adsorbs and fixes the product 101 to be wrapped, the first roller 322 is driven to move upward, and the first elastic member is compressed. Under the acting force of the first elastic member restoring its original state, the first roller 322 is pressed tightly against the surface of the product 101 to be wrapped, and can attach the lug more firmly to the bottom surface of the product 101 to be wrapped.

[0050] In this embodiment, the handling direction of the handling seat 310 is parallel to the first direction. Specifically, the handling device 300 includes a transmission track 330 extending in a straight line, and a transmission mechanism 340 capable of moving along the transmission track 330. An elevating frame 350 capable of moving up and down is provided on the transmission mechanism 340. The handling seat 310 is arranged on the elevating frame 350. Driven by the elevating frame 350, the handling seat 310 can also move up and down, for adsorbing the product 101 to be wrapped from the flipping seat 210 and lowering the product 101 to be wrapped.

[0051] In this embodiment, refer to Figure 3, Figure 5 As shown, the first adsorption mechanism includes a plurality of first suction nozzles 211 arranged at intervals, and the second adsorption mechanism includes a plurality of second suction nozzles 311 arranged at intervals. The adsorption ends of all the first suction nozzles 211 together form the above-mentioned first adsorption plane, and the adsorption ends of all the second suction nozzles 311 together form the above-mentioned second adsorption plane.

[0052] In this embodiment, the film wrapping device further includes a hemming station 120. The handling seat 310 is used to transfer the product 101 to be film wrapped after flipping from the flipping seat 210 to the hemming station 120. A support plane 121 is provided at the hemming station 120. When the product 101 to be film wrapped is at the hemming station 120, the top surface is supported on the support plane 121, and the bottom surface faces upward. A second bending member 410 is movably provided at the hemming station 120. The moving direction of the first bending member 320 intersects with the moving direction of the second bending member 410. A second roller 413 is rotatably provided at the lower part of the second bending member 410. The second roller 413 is used to attach the lug extending above the bottom surface to the bottom surface of the product 101 to be film wrapped.

[0053] Specifically, referring to Figure 7 As shown, the second bending member 410 includes a moving frame 411 and a roller frame 412. The moving frame 411 is arranged to be able to move linearly along a second direction. The roller frame 412 is arranged to be able to move up and down relative to the moving frame 411. The second roller 413 is rotatably provided at the lower part of the roller frame 412 around a second rotation center line extending horizontally. The extending direction of the second rotation center line is perpendicular to the second direction. A second elastic member (not shown in the figure) is provided between the moving frame 411 and the roller frame 412. The second elastic member is used to provide the acting force required for the roller frame 412 to move downward. By providing the second elastic member, the second roller 413 has a tendency to move downward, so as to be able to press tightly against the bottom surface of the product 101 to be film wrapped, ensuring that the lug can be closely attached to the bottom surface of the product 101 to be film wrapped.

[0054] There is a second distance between the bottom of the second roller 413 and the support plane 121. In some embodiments, the second distance is equal to the thickness of the product 101 to be film wrapped. Similarly, since the second roller 413 can move up and down, in some preferred embodiments, the second distance is slightly smaller than the thickness of the product 101 to be film wrapped. In this way, the second roller 413 can roll more closely against the upper surface of the product 101 to be film wrapped, making the film body firmly attached to the upper surface of the product 101 to be film wrapped. The thickness of the above-mentioned product 101 to be film wrapped is the distance from the top surface to the bottom surface.

[0055] In this embodiment, a second hemming structure is provided at the hemming station 120. The second hemming structure is used to drive the lug to bend upward, and the second hemming structure protrudes upward from the support plane 121. Specifically, the second hemming structure is a second protrusion 420 that protrudes upward from the support plane 121. In some preferred embodiments, the height of the second protrusion 420 is slightly less than the thickness of the product 101 to be coated, so as to ensure that the second bending member 410 can fit the bottom surface of the product 101 to be coated for hemming and attaching processes.

[0056] In this embodiment, a guiding structure 430 is further provided at the hemming station. The guiding structure 430 protrudes upward from the support plane 121, and a receiving groove for receiving the product 101 to be coated is formed between the guiding structure 430 and the second hemming structure. The receiving groove can better fix the product 101 to be coated, so that the coating operation can be carried out more stably. In this embodiment, a blanking carrier is provided at the hemming station 120. The handling seat 310 places the product 101 to be coated on the blanking carrier, and the second hemming structure, the support plane 121, and the guiding structure 430 are all arranged on the blanking carrier.

[0057] In some embodiments, the side surface of the product 101 to be coated includes a first side surface and a second side surface whose extending directions are perpendicular to each other. When the product 101 to be coated is located on the handling seat 310, the moving direction of the first bending member 320 is perpendicular to the extending direction of the first side surface. When the product 101 to be coated is located at the hemming station 120, the moving direction of the second bending member 410 is perpendicular to the extending direction of the second side surface.

[0058] In this embodiment, referring to Figure 8 as shown, the projection of the product 101 to be coated along the thickness direction is rectangular, and the length of its first side surface is less than that of the second side surface. Referring to Figure 2 as shown, two slots 111 are provided at the loading station 110. When the product 101 to be coated is located at the loading station 110, the two slots 111 are located outside the product 101 to be coated, and the two slots 111 are respectively adjacent to the two first side surfaces.

[0059] In this embodiment, referring to Figure 3 as shown, two first protrusions 212 are provided on the turning seat 210 at intervals. The first protrusions 212 drive the lugs to adhere to the first side surface. Referring to Figure 4 、 Figure 5 as shown, along the first direction, two first bending members 320 are provided on both sides of the handling seat 310. When the product 101 to be coated is adsorbed below the handling seat 310, the two first bending members 320 drive the two first rollers 322 to move along the first direction, so as to drive the lugs that have been adhered to the first side surface to be hemmed again and adhered to the bottom surface of the product 101 to be coated. Referring to Figure 8 、 Figure 9As shown, when the product 101 to be film-coated is at the hemming station 120, along the second direction, the second protrusions 420 are located on both sides of the product 101 to be film-coated, and the second protrusions 420 are used to drive the lugs to adhere to the second side. Refer to Figure 6 As shown, along the second direction, two groups of second bending members 410 are provided on both sides of the hemming station 120. When the product 101 to be film-coated is at the hemming station 120, the two second bending members 410 drive the two second rollers 413 to move along the second direction, so as to drive the lugs that have adhered to the second side to be hemmed again and adhere to the bottom surface of the product 101 to be film-coated.

[0060] Embodiment 2

[0061] Refer to Figures 10 to 15 As shown, the difference between this embodiment and Embodiment 1 is that: in this embodiment, the product 101 to be film-coated is L-shaped, and the product 101 to be film-coated has three first sides and three second sides. Refer to Figure 11 As shown, three first protrusions 212 are provided on the flipping seat 210, which are respectively used to adhere the lugs to the three first sides. Refer to Figure 10 As shown, three slots 111 are correspondingly arranged at the loading station 110 for the three first protrusions 212 to be inserted and complete the hemming operation. Refer to Figure 12 As shown, three first bending members 320 are provided on the handling seat 310, and the lugs are adhered to the bottom surface of the product 101 to be film-coated through the three first rollers 322. Refer to Figures 13 to 15 As shown, an L-shaped accommodation groove is formed between the second protrusion 420 and the guiding structure 430 for the product 101 to be film-coated to be received therein.

[0062] In summary, for the film-coating equipment of all the above embodiments, when flipping and handling the product 101 to be film-coated, it can synchronously fold the film body adhered to the surface of the product 101 to be film-coated along the first direction, reducing the workload at the hemming station 120, and the folding operations at the flipping device 200, the handling device 300, and the hemming station 120 can be carried out synchronously, greatly improving the working efficiency of the film-coating equipment.

[0063] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A coating device, the product to be coated has a top surface and a bottom surface which are oppositely arranged, and a side surface located between the top surface and the bottom surface, the film body has a main body portion attached to the top surface and a lug extending outward from the main body portion, and is characterized in that: The described film coating device includes: A flipping device, including a support frame and a flipping seat rotatably arranged on the support frame. The flipping seat is used to flip the product to be film-coated with the film body attached thereto, so that the bottom surface of the product to be film-coated faces upward. The flipping seat is provided with a first adsorption mechanism and a first hemming structure. The first adsorption mechanism forms a first adsorption plane. When the flipping seat adsorbs the product to be film-coated, the top surface with the film body attached thereto is adsorbed on the first adsorption plane. The first hemming structure is used to drive the lug to bend and adhere to the side surface. Along the direction perpendicular to the first adsorption plane, the first hemming structure protrudes outward from the flipping seat and extends, and the first hemming structure extends beyond the first adsorption plane. A handling device, including a handling seat. The handling seat is used to remove the product to be film-coated from the flipping seat and transfer the product to be film-coated. The handling seat is provided with a second adsorption mechanism. The second adsorption mechanism forms a second adsorption plane facing downward and used to adsorb the product to be film-coated. The handling device includes a first bending member. The first bending member is movably arranged on the handling seat. A first roller is rotatably arranged at the lower part of the first bending member. The first roller is configured to be able to roll on the product to be film-coated and drive the lug extending above the bottom surface to adhere to the bottom surface.

2. The coating device according to claim 1, wherein: Along the direction perpendicular to the first adsorption plane, there is a first distance between the free end of the first hemming structure and the first adsorption plane. The first distance is equal to the thickness of the product to be film-coated, or the first distance is slightly larger than the thickness of the product to be film-coated.

3. The coating device according to claim 1, characterized in that: The bottom of the first roller is flush with the second adsorption plane, or the bottom of the first roller is slightly lower than the second adsorption plane.

4. The coating device according to claim 3, wherein: The first bending member includes a main body part and a driving part. The driving part is linearly movably arranged on the handling seat. The main body part is arranged to be able to move up and down relative to the driving part. The first roller is rotatably arranged at the lower part of the main body part. A first elastic member is arranged between the driving part and the main body part. The first elastic member is used to provide the acting force required for the main body part to move downward.

5. The coating device according to claim 1, wherein: The film coating device further includes a hemming station. The handling seat is used to transfer the flipped product to be film-coated from the flipping seat to the hemming station. A support plane is provided at the hemming station. When the product to be film-coated is at the hemming station, the top surface is supported on the support plane and the bottom surface faces upward. A second bending member is movably arranged at the hemming station. The movement direction of the first bending member intersects with the movement direction of the second bending member. A second roller is rotatably arranged at the lower part of the second bending member. The second roller is configured to drive the lug extending above the bottom surface to adhere to the bottom surface of the product to be film-coated. There is a second distance between the bottom of the second roller and the support plane. The second distance is equal to the thickness of the product to be film-coated, or the second distance is slightly smaller than the thickness of the product to be film-coated.

6. The coating device according to claim 5, wherein: The second bending member includes a moving frame and a roller frame. The moving frame is arranged to be linearly movable, the roller frame is arranged to be vertically movable relative to the moving frame, the second roller is rotatably arranged at the lower part of the roller frame, and a second elastic member is arranged between the moving frame and the roller frame. The second elastic member is used to provide the acting force required for the downward movement of the roller frame.

7. The coating device according to claim 5, characterized in that: A second hemming structure for driving the lug to bend upward is provided at the hemming station, and the second hemming structure protrudes upward and extends from the support plane.

8. The coating device according to claim 7, wherein: The height of the second hemming structure is slightly smaller than the thickness of the product to be coated; and / or, a guiding structure is provided at the hemming station, and the guiding structure protrudes upward and extends from the support plane. A receiving groove for receiving the product to be coated is formed between the guiding structure and the second hemming structure.

9. The coating device according to claim 5, characterized in that: The side surface includes a first side surface and a second side surface. The extending direction of the first side surface is perpendicular to the extending direction of the second side surface. When the product to be coated is located on the handling seat, the moving direction of the first bending member is perpendicular to the extending direction of the first side surface; when the product to be coated is located at the hemming station, the moving direction of the second bending member is perpendicular to the extending direction of the second side surface.

10. The coating device according to claim 1, wherein: The coating device includes a feeding station. The flipping seat adsorbs the product to be coated from the feeding station. A slot for inserting the first hemming structure is provided at the feeding station, and the slot opening faces upward. When the product to be coated is located at the feeding station, the film adheres to the top surface and faces upward, and the lug is located above the slot.

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