A hot melt adhesive metal coil coating device

Abstract

The present invention discloses a hot melt adhesive metal coil coating device, which relates to the technical field of metal coil coating, and comprises a base, the top of the base is rotatably connected with two groups of rotating shafts, the outer walls of the two groups of rotating shafts are respectively rolled with a group of films, the top of the base is fixedly connected with a corona machine body located next to the film, the side walls of the base are fixedly connected with two groups of tensioning mechanisms, the two groups of tensioning mechanisms are respectively connected with a group of rotating shafts, and the top of the base is provided with two groups of pressure rollers, and the outer walls of the pressure rollers are made of silicone. The present invention drives the friction plate to rotate during the rotation of the rotating shaft, and the centrifugal force generated by the rotation of the friction plate pushes the swing block to slide inside the centrifugal chute, thereby pushing the friction plate and the friction sleeve to fit together, so that the rotation of the rotating shaft is subject to resistance, preventing the rotating shaft from rotating too fast, so that the film is always kept in a tight state after being pulled out from the outside of the rotating shaft, and avoiding the film from being offset when being fitted on the surface of the metal coil body.

Description

Technical Field

[0001] The invention relates to the technical field of metal coil coating, in particular to a hot melt adhesive metal coil coating device. Background Art

[0002] Lamination refers to the process of applying a transparent plastic film to the surface of printed materials through heat pressing to protect and increase the gloss. Lamination has been widely used in various industries. Lamination protects the surface of the coated object. After the roll material is produced, the staff needs to laminate it. Lamination can increase the protection, storage and service life of the roll material.

[0003] When the staff is laminating the coiled material, bubbles may appear in the machine during the laminating process, affecting the laminating effect. The rupture of the bubbles will cause the regional laminating to fail to protect the coiled material. A coiled material laminating device can bring convenience to the staff.

[0004] An existing patent (publication number: CN218857681U) discloses a coil coating device, including a supporting assembly, a feeding assembly, a film pressing assembly and a material receiving assembly, including a device main body, a supporting plate symmetrically installed on the top of the device main body, a feeding bracket installed on the top of the supporting plate, and a feeding motor installed on one side of the feeding bracket. A smoother is installed in the utility model. When the coil and the coating are bonded, the bubbles can be eliminated through the smoother after being squeezed by the film pressing roller. The screw motor is started to drive the smoother to rise and fall until the height of the smoother is the same as the thickness of the material. Then, when the material passes through the smoother, the smoothing plate installed at the bottom of the smoother can scrape the bubbles on the coil and the coating and can perform secondary squeezing on the loosely bonded areas to prevent bubbles and loosely bonded areas from affecting subsequent storage and use effects, bringing convenience to the staff.

[0005] However, the above technical solution still has certain defects. During the laminating process, the above solution eliminates the wrinkles produced in the film by scraping it flat, but the above solution cannot ensure that the film is always in a relatively tight state during the laminating process, which makes the film easy to shift when it is attached to the outer wall of the metal coil, thereby causing the film to be crooked. For this reason, a hot melt adhesive metal coil laminating device is proposed. Summary of the invention

[0006] Based on this, the purpose of the present invention is to provide a hot melt adhesive metal coil laminating device to solve the technical problem mentioned in the above background that the existing technology cannot ensure that the film is always in a relatively tight state during the laminating process, which makes the film easily deviate when it is attached to the outer wall of the metal coil.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hot melt adhesive metal coil coating device, comprising a base, the top of the base is rotatably connected to two groups of rotating shafts, the outer walls of the two groups of rotating shafts respectively roll up a group of films, the top of the base is fixedly connected to a corona machine body located next to the film, the side walls of the base are fixedly connected to two groups of tensioning mechanisms, the two groups of tensioning mechanisms are respectively connected to a group of rotating shafts, the top of the base is provided with two groups of pressing rollers, the outer walls of the pressing rollers are made of silicone material, and the top of the base is provided with a gluing mechanism;

[0008] The tensioning mechanism includes a first toothed disc, the first toothed disc is fixedly connected to one end of the rotating shaft, the side wall of the base is fixedly connected with a friction sleeve, the inner wall of the friction sleeve is rotatably connected with a rotating pin, the end of the rotating pin is fixedly connected with a second toothed disc, the second toothed disc meshes with the first toothed disc, the outer wall fixed sleeve of the rotating pin is provided with a rotating disc, the outer wall sliding sleeve of the rotating disc is provided with a friction plate, the friction plate sliding sleeve is provided on the outer wall of the rotating pin, the friction plate is provided with a plurality of groups of centrifugal inclined grooves on the side that is in contact with the rotating disc, the inner walls of the plurality of groups of centrifugal inclined grooves are respectively slidably connected with a group of throwing blocks, the outer wall sleeve of the rotating pin is provided with a reset spring, one end of the reset spring is fixedly connected to the side wall of the friction plate, and the other end of the reset spring is fixedly connected to the outer wall of the rotating pin;

[0009] The gluing mechanism includes a first glue bin, which is fixedly connected to the top of the base, and the top of the base is fixedly connected to a second glue bin located below the first glue bin. The side walls of the first glue bin and the second glue bin are respectively provided with electric heating wires, and the inner walls of the first glue bin and the second glue bin are respectively rotatably connected to glue application rollers.

[0010] As a preferred technical solution of a hot melt adhesive metal coil coating device of the present invention, a protective mechanism extending to the bottom of the base is provided at the top of the base, and the protective mechanism includes two groups of side brackets, and the inner walls of the two groups of side brackets are respectively slidably connected with a group of sliding rods, and the tops of the two groups of sliding rods are provided with coil bodies, and the top and bottom ends of the coil bodies are respectively attached to the outer walls of a group of upper glue rollers.

[0011] As a preferred technical solution of a hot melt adhesive metal coil coating device of the present invention, the bottom end of the sliding rod extends to the bottom end of the base, and the bottom end of the base is rotatably connected to two groups of turntables. The turntables are provided with torsion springs at the connection with the base, and the side walls of the two groups of turntables are respectively fixedly connected to a group of push rods, and the outer walls of the two groups of push rods are respectively slidably sleeved with a group of sliding frames, and the two groups of sliding frames are respectively fixedly connected to the bottom ends of a group of sliding rods.

[0012] As a preferred technical solution of a hot melt adhesive metal coil coating device of the present invention, the side walls of the two groups of turntables are respectively rotatably connected to a group of connecting rods, and the ends of the two groups of connecting rods are rotatably connected to rotating arms. The ends of the rotating arms are hinged to the top of the base, and the top of the rotating arms are fixedly connected to multiple groups of blocking rods, and the ends of the multiple groups of blocking rods extend to the top of the coil body.

[0013] As a preferred technical solution of a hot melt adhesive metal coil coating device of the present invention, the top of the base is fixedly connected to a power mechanism, and the power mechanism includes two groups of pressure components. The pressure components include an upper bracket, and the inner wall sliding sleeve of the upper bracket is provided with a lower bracket, and the lower bracket is fixedly connected to the top of the base, and the inner wall of the lower bracket is fixedly connected to a pressure spring located inside the upper bracket, the top end of the pressure spring is fixedly connected to the inner wall of the lower bracket, and the bottom end of the pressure spring is fixedly connected to the inner wall of the upper bracket.

[0014] As an optimal technical solution of the hot melt adhesive metal coil coating device of the present invention, a rubber roller is rotatably connected between the two groups of upper brackets, an auxiliary roller located next to the rubber roller is rotatably connected between the two groups of upper brackets, and a driving roller is rotatably connected between the two groups of lower brackets.

[0015] As a preferred technical solution of a hot melt adhesive metal coil coating device of the present invention, one end of the driving roller is fixedly connected to the output end of the motor, the motor is fixedly connected to the side wall of the base, and the other end of the driving roller is fixedly connected to one end of the synchronous belt.

[0016] As a preferred technical solution of a hot melt adhesive metal coil coating device of the present invention, another point of the synchronous belt is connected to a crankshaft, and another set of crankshafts is coaxially connected to the side wall of the crankshaft, and the two sets of crankshafts are rotatably connected to the top of the base.

[0017] As a preferred technical solution of a hot melt adhesive metal coil coating device of the present invention, the outer walls of the two groups of crankshafts are respectively rotatably connected to a group of ball seats, the inner walls of the ball seats are connected to push rods through ball heads, the end of the push rods is fixedly connected to a piston, the outer wall of the piston is slidingly sleeved with a sleeve, and the sleeve is fixedly connected to the top of the base.

[0018] As a preferred technical solution of a hot melt adhesive metal coil coating device of the present invention, the side wall of the sleeve is connected to a water supply pipe, the end of the water supply pipe is connected to a water tank, the end of the sleeve away from the top rod is connected to a water outlet pipe, the end of the water outlet pipe is connected to an atomizing nozzle, the atomizing nozzle is fixedly connected to the top of the base, and two groups of atomizing nozzles are respectively located next to the two groups of films, the side wall of the piston is provided with a water hole, and the side wall of the piston is rotatably connected to two groups of first baffles at positions corresponding to the water holes.

[0019] In summary, the present invention mainly has the following beneficial effects:

[0020] 1. The present invention drives the friction plate to rotate during the rotation of the shaft, and the centrifugal force generated by the rotation of the friction plate pushes the swing block to slide inside the centrifugal chute, thereby pushing the friction plate and the friction sleeve to fit together, so that the rotation of the shaft is resisted, preventing the shaft from rotating too fast, so that the film is always kept in a taut state after being pulled out from the outside of the shaft, avoiding the film from being offset when being attached to the surface of the metal coil body;

[0021] 2. The present invention places the coil body on a sliding rod, so that the sliding rod drives the turntable to rotate, and the turntable pushes the rotating arm through a connecting rod, so that the blocking rod flips over to the top of the coil body, thereby preventing the coil body from expanding and injuring the operator under the action of its own resilience when the binding strap outside the coil body is loosened;

[0022] 3. The present invention drives the driving roller to rotate through the motor, thereby pushing the coil body to pass through the two sets of pressure rollers, and during the rotation of the driving roller, the piston is driven to slide back and forth on the inner wall of the sleeve, so that the water inside the water tank is continuously sprayed onto the surface of the coil body, so that after the film is attached to the surface of the coil body, before the water is dry, the offset film can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 It is a side view structural schematic diagram of the present invention;

[0025] Figure 3 It is a rear view structural schematic diagram of the present invention;

[0026] Figure 4 It is a bottom view structural schematic diagram of the present invention;

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the casing of the present invention;

[0028] Figure 6 It is a schematic diagram of the main structure of the tensioning mechanism of the present invention;

[0029] Figure 7 It is a schematic diagram of the tensioning mechanism friction sleeve of the present invention being removed;

[0030] Figure 8 It is a schematic diagram of the exploded structure of the tensioning mechanism of the present invention;

[0031] Fig. 9 It is a schematic diagram of the friction plate structure of the present invention;

[0032] Fig.10It is a schematic diagram of the cross-sectional structure of the pressure component of the present invention;

[0033] Fig.11 It is a schematic diagram of the gluing mechanism structure of the present invention.

[0034] In the figure: 1. base; 2. corona machine body; 3. rotating shaft; 4. film; 5. tensioning mechanism; 6. power mechanism; 7. protection mechanism; 8. coil body; 9. pressure roller; 10. gluing mechanism;

[0035] 501, first toothed disc; 502, friction sleeve; 503, rotating pin; 504, second toothed disc; 505, rotating disc; 506, friction plate; 507, centrifugal chute; 508, throwing block; 509, return spring;

[0036] 601, pressure assembly; 6011, upper bracket; 6012, rubber roller; 6013, auxiliary roller; 6014, lower bracket; 6015, pressure spring; 6016, driving roller; 602, motor; 603, synchronous belt; 604, crankshaft; 605, ball seat; 606, sleeve; 607, piston; 608, push rod; 609, upper water pipe; 610, water tank; 611, water outlet pipe; 612, atomizing nozzle; 613, water hole; 614, first baffle;

[0037] 701, side bracket; 702, sliding rod; 703, turntable; 704, push rod; 705, sliding frame; 706, connecting rod; 707, rotating arm; 708, blocking rod;

[0038] 1001, first glue bin; 1002, second glue bin; 1003, glue roller. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] The following describes an embodiment of the present invention based on its overall structure.

[0041] A hot melt adhesive metal coil coating device, such as Figures 1 to 10 As shown, it includes a base 1, the top of the base 1 is rotatably connected with two groups of rotating shafts 3, the outer walls of the two groups of rotating shafts 3 are respectively rolled with a group of films 4, the top of the base 1 is fixedly connected with a corona machine body 2 located next to the film 4, the side wall of the base 1 is fixedly connected with two groups of tensioning mechanisms 5, the two groups of tensioning mechanisms 5 are respectively connected with a group of rotating shafts 3, and the top of the base 1 is provided with two groups of pressing rollers 9, and the outer walls of the pressing rollers 9 are made of silicone material;

[0042] The tensioning mechanism 5 includes a first toothed disc 501, which is fixedly connected to one end of the rotating shaft 3, a friction sleeve 502 is fixedly connected to the side wall of the base 1, a rotating pin 503 is rotatably connected to the inner wall of the friction sleeve 502, a second toothed disc 504 is fixedly connected to the end of the rotating pin 503, the second toothed disc 504 is meshed with the first toothed disc 501, a rotating disc 505 is fixedly sleeved on the outer wall of the rotating pin 503, a friction plate 506 is slidably sleeved on the outer wall of the rotating disc 505, and the friction plate 506 is slidably sleeved on the outer wall of the rotating pin 503, and the friction plate 506 is provided with a plurality of groups of centrifugal chute 507 on the side that is in contact with the rotating disc 505, and a group of throwing blocks 508 are slidably connected to the inner walls of the plurality of groups of centrifugal chute 507, respectively, and a reset spring 509 is sleeved on the outer wall of the rotating pin 503, one end of the reset spring 509 is fixedly connected to the side wall of the friction plate 506, and the other end of the reset spring 509 is fixedly connected to the outer wall of the rotating pin 503;

[0043] The gluing mechanism 10 includes a first glue bin 1001, which is fixedly connected to the top of a base 1, and a second glue bin 1002 located below the first glue bin 1001 is fixedly connected to the top of the base 1, and electric heating wires are respectively provided on the side walls of the first glue bin 1001 and the second glue bin 1002, and gluing rollers 1003 are respectively rotatably connected to the inner walls of the first glue bin 1001 and the second glue bin 1002.

[0044] The coil body 8 is unrolled, and the films 4 on the two sets of reels are respectively attached to the upper and lower surfaces of the coil body 8, and then the unrolled coil body 8 and the film 4 pass through the two sets of rollers 9, and before the film 4 and the coil body 8 are attached, the coil body 8 passes under the corona machine body 2, so that the surface of the coil body 8 is subjected to the corona operation. In the process of the coil body 8 passing through the two sets of rollers 9, the film 4 is continuously pulled out from the rotating shaft 3, thereby driving the rotating shaft 3 to rotate. During the process, the first toothed disc 501 is driven to rotate, the first toothed disc 501 drives the second toothed disc 504 to rotate, the second toothed disc 504 drives the rotating pin 503 to rotate, the rotating pin 503 drives the rotating disc 505 to rotate, the rotating disc 505 drives the friction plate 506 to rotate, and the friction plate 506 drives the swinging block 508 to rotate during the rotation process, so that the swinging block 508 slides inside the centrifugal chute 507 under the action of centrifugal force. Since one side of the friction plate 506 is in contact with the rotating disc 505, during the sliding process of the swinging block 508, The outer wall of the swing block 508 contacts the rotating disk 505. As the swing block 508 slides inside the centrifugal chute 507, the swing block 508 pushes the friction plate 506 to slide on the outer wall of the rotating disk 505 and continuously moves away from the rotating disk 505, so that the friction plate 506 compresses the return spring 509, and the friction plate 506 contacts the friction sleeve 502. The friction between the friction plate 506 and the friction sleeve 502 makes the rotation of the shaft 3 resisted, so that the shaft 3 does not rotate too fast, thereby ensuring that the film 4 is always Keeping it in a relatively tight state, when the coil body 8 passes through between the two sets of glue rollers 1003, since the two sets of glue rollers 1003 are attached to the outer wall of the coil body 8, the glue rollers 1003 rotate under the drive of the coil body 8, and the hot melt adhesive inside the first glue bin 1001 and the second glue bin 1002 is heated and melted by the electric heating wire, so that during the rotation of the glue rollers 1003, the surface of the glue rollers 1003 adheres to the melted hot melt adhesive, so that the hot melt adhesive is smeared on the surface of the coil body 8.

[0045] Please refer to Figure 2 , Figure 3 , Figure 4 and Fig.10The top of the base 1 is provided with a protection mechanism 7 extending to the bottom of the base 1, and the protection mechanism 7 includes two sets of side brackets 701, and the inner walls of the two sets of side brackets 701 are respectively slidably connected with a set of sliding rods 702, and the tops of the two sets of sliding rods 702 are provided with a coil body 8, and the top and bottom ends of the coil body 8 are respectively attached to the outer wall of a set of glue rollers 1103, and the bottom ends of the sliding rods 702 extend to the bottom end of the base 1, and the bottom end of the base 1 is rotatably connected with two sets of turntables 703, and the turntables 703 are provided with torsion springs at the connection with the base 1, and the two sets of turntables 703 are connected to the base 1. The side walls of the two turntables 703 are respectively fixedly connected with a group of push rods 704, and the outer walls of the two groups of push rods 704 are respectively slidably sleeved with a group of sliding frames 705, and the two groups of sliding frames 705 are respectively fixedly connected to the bottom ends of a group of sliding rods 702, and the side walls of the two groups of turntables 703 are respectively rotatably connected with a group of connecting rods 706, and the ends of the two groups of connecting rods 706 are rotatably connected with rotating arms 707, and the ends of the rotating arms 707 are hinged to the top of the base 1, and the tops of the rotating arms 707 are fixedly connected with multiple groups of blocking rods 708, and the ends of the multiple groups of blocking rods 708 extend to the top of the coil body 8.

[0046] By placing the coil body 8 above the two sets of sliding rods 702, the two sets of sliding rods 702 are affected by the gravity of the coil body 8, thereby pushing the two sets of sliding rods 702 to slide downward. During the downward sliding process of the two sets of sliding rods 702, the two sets of sliding frames 705 are pushed downward, so that the two sets of pushing frames push a set of push rods 704 respectively, thereby driving the turntable 703 to rotate. During the rotation process, the turntable 703 pushes the connecting rod 706, so that the rotating arm 707 flips under the push of the connecting rod 706. During the flipping process of the rotating arm 707, the blocking rod 708 is also flipped. After the coil body 8 is placed above the sliding rod 702 and the fixings such as the straps on the outside of the coil body 8 are removed, the coil body 8 will not unfold due to its own elastic force, thereby avoiding the coil body 8 from hitting the operator after it unfolds.

[0047] Please refer to Figures 2 to 4The top of the base 1 is fixedly connected with a power mechanism 6, which includes two groups of pressure components 601. The pressure component 601 includes an upper bracket 6011, and the inner wall of the upper bracket 6011 is slidably sleeved with a lower bracket 6014. The lower bracket 6014 is fixedly connected to the top of the base 1. The inner wall of the lower bracket 6014 is fixedly connected with a pressure spring 6015 located inside the upper bracket 6011. The top of the pressure spring 6015 is fixedly connected to the inner wall of the lower bracket 6014. The bottom of the pressure spring 6015 The inner wall of the upper bracket 6011 is fixedly connected, a rubber roller 6012 is rotatably connected between the two groups of upper brackets 6011, an auxiliary roller 6013 located next to the rubber roller 6012 is rotatably connected between the two groups of upper brackets 6011, a driving roller 6016 is rotatably connected between the two groups of lower brackets 6014, one end of the driving roller 6016 is fixedly connected to the output end of the motor 602, the motor 602 is fixedly connected to the side wall of the base 1, and the other end of the driving roller 6016 is fixedly connected to one end of the synchronous belt 603. Another point of the synchronous belt 603 is connected to a crankshaft 604, and the side wall of the crankshaft 604 is coaxially connected to another set of crankshafts 604. The two sets of crankshafts 604 are rotatably connected to the top of the base 1. The outer walls of the two sets of crankshafts 604 are respectively rotatably connected to a set of ball seats 605. The inner walls of the ball seats 605 are connected to a push rod 608 through a ball head. The end of the push rod 608 is fixedly connected to a piston 607. The outer wall of the piston 607 is slidably sleeved with a sleeve 606. The sleeve 606 is fixedly connected to the top of the base 1. The side of the sleeve 606 The wall is connected to a water supply pipe 609, the end of the water supply pipe 609 is connected to a water tank 610, the end of the sleeve 606 away from the top rod 608 is connected to a water outlet pipe 611, the end of the water outlet pipe 611 is connected to an atomizing nozzle 612, the atomizing nozzle 612 is fixedly connected to the top of the base 1, and two groups of atomizing nozzles 612 are respectively located beside the two groups of films 4, a water hole 613 is provided on the side wall of the piston 607, and two groups of first baffles 614 are rotatably connected to the side wall of the piston 607 at a position corresponding to the water hole 613.

[0048] By passing one end of the two sets of coil bodies 8 between the rubber roller 6012 and the driving roller 6016, under the elastic force of the pressure spring 6015, the lower bracket 6014 drives the driving roller 6016 to fit upwardly on the lower surface of the coil body 8, so that the driving roller 6016 and the rubber roller 6012 are tightly clamped on the upper and lower sides of the coil body 8, and the driving roller 6016 is driven to rotate by the motor 602, so that the driving roller 6016 pushes the coil body 8 to pass through between the two sets of pressure rollers 9. During the rotation of the driving roller 6016, the driving roller 6016 drives the synchronous belt 603 to rotate, so that the synchronous belt 603 drives the crankshaft 604 to rotate. During the rotation of the crankshaft 604, the ball seat 605 pushes the push rod 608 to slide back and forth on the side wall of the sleeve 606, so that the push rod 608 pushes the piston 607 to slide back and forth on the inner wall of the sleeve 606. During the sliding process of the piston 607, when the piston 607 slides to the left, the pressure on the left side of the piston 607 increases, so that the first baffle 614 607, and the water on the left side of the piston 607 is pushed, so that the water enters the atomizing nozzle 612 through the outlet pipe 611, and is sprayed onto the surface of the coil body 8. In the process of the piston 607 sliding to the right, the pressure on the right side of the piston 607 increases, so that the first baffle 614 flips over, and the water on the right side of the piston 607 that is sucked into the sleeve 606 is pushed by the piston 607, so as to flow into the left side of the piston 607 through the water hole 613. The piston 607 slides back and forth continuously, so that the water is continuously sprayed onto the surface of the coil body 8, thereby enhancing the activity of the hot melt adhesive on the surface of the coil body 8. In the process of the coil body 8 with the film 4 attached passing through the two sets of pressure rollers 9, the pressure rollers 9 will squeeze out the excess water and hot melt adhesive between the film 4 and the coil body 8, so that the bubbles between the film 4 and the coil body 8 are removed.

[0049] When in use, the friction plate 506 is driven to rotate by the rotation of the rotating shaft 3, and the centrifugal force generated by the rotation of the friction plate 506 pushes the swing block 508 to slide inside the centrifugal chute 507, thereby pushing the friction plate 506 to fit with the friction sleeve 502, so that the rotation of the rotating shaft 3 is resisted, preventing the rotating shaft 3 from rotating too fast, so that after the film 4 is pulled out from the outside of the rotating shaft 3, it always remains in a taut state, avoiding the film 4 from being offset when being attached to the surface of the metal coil. The parts not involved in the device are the same as the prior art or can be implemented by the prior art.

[0050] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A hot melt adhesive metal coil coating device, comprising a base (1), characterized in that: The top of the base (1) is rotatably connected to two groups of rotating shafts (3), and the outer walls of the two groups of rotating shafts (3) are respectively rolled up with a group of films (4). The top of the base (1) is fixedly connected to a corona machine body (2) located next to the film (4). The side walls of the base (1) are fixedly connected to two groups of tensioning mechanisms (5), and the two groups of tensioning mechanisms (5) are respectively connected to a group of rotating shafts (3). The top of the base (1) is provided with two groups of pressing rollers (9), and the outer walls of the pressing rollers (9) are made of silicone. The top of the base (1) is provided with a gluing mechanism (10); The tensioning mechanism (5) comprises a first toothed disc (501), the first toothed disc (501) is fixedly connected to one end of the rotating shaft (3), a friction sleeve (502) is fixedly connected to the side wall of the base (1), the inner wall of the friction sleeve (502) is rotatably connected to a rotating pin (503), the end of the rotating pin (503) is fixedly connected to a second toothed disc (504), the second toothed disc (504) is meshed with the first toothed disc (501), the outer wall of the rotating pin (503) is fixedly sleeved with a rotating disc (505), and the outer wall sliding sleeve of the rotating disc (505) is provided with a friction The friction plate (506) is slidably sleeved on the outer wall of the rotating pin (503); the friction plate (506) is provided with a plurality of groups of centrifugal inclined grooves (507) on the side in contact with the rotating disk (505); the inner walls of the plurality of groups of centrifugal inclined grooves (507) are respectively slidably connected with a group of throwing blocks (508); the outer wall of the rotating pin (503) is sleeved with a return spring (509); one end of the return spring (509) is fixedly connected to the side wall of the friction plate (506); and the other end of the return spring (509) is fixedly connected to the outer wall of the rotating pin (503); The gluing mechanism (10) comprises a first glue bin (1001), the first glue bin (1001) is fixedly connected to the top of the base (1), the top of the base (1) is fixedly connected to a second glue bin (1002) located below the first glue bin (1001), the side walls of the first glue bin (1001) and the second glue bin (1002) are respectively provided with electric heating wires, and the inner walls of the first glue bin (1001) and the second glue bin (1002) are respectively rotatably connected to glue rollers (1003).

2. A hot melt adhesive metal coil coating device according to claim 1, characterized in that: The top of the base (1) is provided with a protective mechanism (7) extending to the bottom of the base (1), and the protective mechanism (7) includes two groups of side brackets (701), and the inner walls of the two groups of side brackets (701) are respectively slidably connected with a group of sliding rods (702), and the tops of the two groups of sliding rods (702) are provided with a coil body (8), and the top and bottom ends of the coil body (8) are respectively attached to the outer walls of a group of adhesive rollers (1103).

3. A hot melt adhesive metal coil coating device according to claim 2, characterized in that: The bottom end of the sliding rod (702) extends to the bottom end of the base (1), and the bottom end of the base (1) is rotatably connected to two groups of rotating disks (703). The rotating disks (703) are provided with torsion springs at the connection with the base (1). The side walls of the two groups of rotating disks (703) are respectively fixedly connected to a group of push rods (704). The outer walls of the two groups of push rods (704) are respectively slidably sleeved with a group of sliding frames (705). The two groups of sliding frames (705) are respectively fixedly connected to the bottom ends of a group of sliding rods (702).

4. A hot melt adhesive metal coil coating device according to claim 3, characterized in that: The side walls of the two groups of turntables (703) are rotatably connected to a group of connecting rods (706), and the ends of the two groups of connecting rods (706) are rotatably connected to rotating arms (707). The ends of the rotating arms (707) are hinged to the top of the base (1), and the top of the rotating arms (707) are fixedly connected to multiple groups of blocking rods (708), and the ends of the multiple groups of blocking rods (708) extend to the top of the coil body (8).

5. The hot melt adhesive metal coil coating device according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a power mechanism (6), the power mechanism (6) comprises two groups of pressure components (601), the pressure component (601) comprises an upper bracket (6011), the inner wall of the upper bracket (6011) is slidably sleeved with a lower bracket (6014), the lower bracket (6014) is fixedly connected to the top of the base (1), the inner wall of the lower bracket (6014) is fixedly connected to a pressure spring (6015) located inside the upper bracket (6011), the top end of the pressure spring (6015) is fixedly connected to the inner wall of the lower bracket (6014), and the bottom end of the pressure spring (6015) is fixedly connected to the inner wall of the upper bracket (6011).

6. A hot melt adhesive metal coil coating device according to claim 5, characterized in that: A rubber roller (6012) is rotatably connected between the two groups of upper brackets (6011), an auxiliary roller (6013) located next to the rubber roller is rotatably connected between the two groups of upper brackets (6011), and a driving roller (6016) is rotatably connected between the two groups of lower brackets (6014).

7. A hot melt adhesive metal coil coating device according to claim 6, characterized in that: One end of the driving roller (6016) is fixedly connected to the output end of the motor (602), the motor (602) is fixedly connected to the side wall of the base (1), and the other end of the driving roller (6016) is fixedly connected to one end of the synchronous belt (603).

8. The hot melt adhesive metal coil coating device according to claim 7, characterized in that: Another point of the synchronous belt (603) is connected to a crankshaft (604), and the side wall of the crankshaft (604) is coaxially connected to another set of crankshafts (604). The two sets of crankshafts (604) are rotatably connected to the top of the base (1).

9. A hot melt adhesive metal coil coating device according to claim 8, characterized in that: The outer walls of the two groups of crankshafts (604) are rotatably connected to a group of ball seats (605), the inner walls of the ball seats (605) are connected to push rods (608) via ball heads, the ends of the push rods (608) are fixedly connected to pistons (607), the outer walls of the pistons (607) are slidably sleeved with sleeves (606), and the sleeves (606) are fixedly connected to the top of the base (1).

10. A hot melt adhesive metal coil coating device according to claim 9, characterized in that: The side wall of the sleeve (606) is connected to a water supply pipe (609), the end of which is connected to a water tank (610). The end of the sleeve (606) away from the top rod (608) is connected to a water outlet pipe (611), the end of which is connected to an atomizing nozzle (612). The atomizing nozzle (612) is fixedly connected to the top of the base (1), and two groups of atomizing nozzles (612) are respectively located beside the two groups of films (4). The side wall of the piston (607) is provided with a water through hole (613), and the side wall of the piston (607) is rotatably connected to two groups of first baffles (614) at positions corresponding to the water through holes (613).

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