Matte strip repairing stain-resistant paint surface protective film, preparation process and coating device thereof

Abstract

The invention discloses a matte strip repairing stain-resistant paint surface protective film, and a preparation process and a coating device thereof. The coating device comprises a box body provided with a feeding port and a discharging port, fixing frames arranged on the two sides of the box body, unwinding rollers arranged on the fixing frames, sleeves arranged on the fixing frames, a first driving piece for driving the sleeves to rotate, winding rollers detachably arranged on the sleeves, a material storage box arranged in the box body and a glue coating roller arranged in the material storage box. The connecting mechanism is used for connecting the sleeve with the winding roller, the drying mechanism is used for drying the glue solution, and the recycling mechanism is used for recycling the fallen glue solution.

Description

Technical Field

[0001] The present invention belongs to the technical field of protective films, and in particular relates to a matte tape repair and stain-resistant paint surface protective film, a preparation process thereof, and a coating device thereof. Background Art

[0002] Traditional coating machines are mainly used for surface coating production of films, paper, etc. This machine coats the rolled substrate with a layer of glue, paint or ink with specific functions, and rewinds it after drying. It uses a dedicated multi-functional coating head and can achieve various forms of surface coating. The rewinding and unwinding of the coating machine are both equipped with full-speed automatic film splicing mechanisms and PLC program tension closed-loop automatic control.

[0003] Patent CN202321387605.1 discloses a PE protective film coating machine, which belongs to the technical field of coating equipment. The PE protective film coating machine includes a base plate, a first side plate is symmetrically installed at one end of the base plate, and a unwinding roller is rotatably provided between the first side plates. A second side plate is symmetrically installed at the other end of the base plate, and a winding roller is rotatably provided between the second side plates. A mounting box located between the first side plate and the second side plate is provided on the base plate, and a feed port and a discharge port are provided at both ends of the mounting box respectively. A partition for accommodating glue liquid is provided in the mounting box, an adjustment component is movably provided on the glue liquid, and a glue coating roller that is in movably contact with the glue liquid is movably provided on the adjustment component. A protective film body in contact with the glue coating roller is provided between the unwinding roller and the winding roller, and a pressing component located between the first side plate and the mounting box is provided on the base plate. It has the advantages of automatic height adjustment, flexible pressing, efficient gluing, fast drying and simplicity and practicality.

[0004] In the above patent, part of the glue on the protective film body will fall onto the electric heating tube and the fan, affecting the life of the device. Summary of the Invention

[0005] The content of this application is used to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this application is not intended to identify key features or essential features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought.

[0006] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a matte tape repair and stain-resistant paint protection film, including a protective film layer, an anti-fouling layer, a matte coating, a base film layer, a pressure-sensitive adhesive layer and a release material layer arranged in sequence.

[0007] A preparation process for a matte tape repair and stain-resistant paint protective film, the preparation process comprising the following steps:

[0008] S1. Select the appropriate base film material according to the required protection effect and performance requirements;

[0009] S2. Surface treatment of the base film to improve adhesion and cohesion;

[0010] 3. Use the coating device to evenly apply different coatings on the surface of different base films to form a protective film layer, an anti-fouling layer, a matte coating, a base film layer, and a pressure-sensitive adhesive layer;

[0011] S4, pressing the protective film layer, the anti-fouling layer, the matte coating layer, the base film layer, the pressure-sensitive adhesive layer and the release material layer to form a composite structure;

[0012] S5. Use heat, ultraviolet rays or chemical reactions to cure the paint and enhance the performance of the paint protective film.

[0013] A coating device for a matte tape repair and stain-resistant paint protection film, comprising: a box body provided with a feed inlet and a feed outlet, a fixing frame provided on both sides of the box body, a reeling roller provided on the fixing frame, a sleeve provided on the fixing frame, a first driving member for driving the sleeve to rotate, a reeling roller detachably provided on the sleeve, a material storage box provided in the box body, a glue coating roller provided in the material storage box, a connecting mechanism connecting the sleeve and the reeling roller, a drying mechanism for drying glue liquid, and a recovery mechanism for recovering dropped glue liquid, wherein the drying mechanism comprises a reeling roller provided in the box body, a reeling roller provided in the reeling roller ... A partition inside the box, a motor arranged in the box, a rotating shaft connected to the output shaft of the motor, a first fan blade arranged on the rotating shaft, a heating wire arranged above the first fan blade, a baffle plate evenly provided with a plurality of air outlet holes, a block coordinated with the air outlet holes, an air guide block arranged on the bottom surface of the block, a guide plate arranged on the block, a baffle sleeve arranged corresponding to the air outlet holes, a support rod provided on the air guide block, a connecting frame for connecting each support rod and a second driving member for driving the connecting frame to move up and down, the block and the air guide block are both frustum-shaped.

[0014] Preferably, the recycling mechanism includes a collection box arranged on the bottom surface of the barrier plate, a cleaning port arranged on the side wall of the box body, a sealing door arranged on the cleaning port, a cleaning rack, a plurality of cleaning components arranged on the cleaning rack, a guide plate arranged on the outer wall of the box body, a guide rod arranged on the guide plate and a third driving member for driving the cleaning rack to move left and right, and the cleaning components are arranged corresponding to the air outlet.

[0015] Preferably, the cleaning assembly includes a cleaning shaft provided on the cleaning frame, a turntable provided on the cleaning shaft, a first sprocket provided on the cleaning shaft, a second sprocket, a chain connecting the first sprocket and the second sprocket and a fourth driving member for driving the second sprocket to rotate, a mounting plate symmetrically provided on the bottom surface of the turntable, a sliding rod provided on the mounting plate, a first scraper provided on the end of the sliding rod, a first baffle provided on the sliding rod, a first elastic member sleeved on the sliding rod, a first connecting rod provided on the cleaning frame, a second scraper provided with a sliding groove, a second elastic member provided in the sliding groove, a third scraper provided on the end of the second elastic member and a fourth scraper provided on the third scraper, the second scraper is fixed on the first connecting rod and can be attached to the top surface of the barrier plate, and the fourth scraper is curved in a circular arc shape.

[0016] Preferably, the cleaning assembly also includes a first rotating shaft arranged on the mounting plate, a nozzle arranged on the first rotating shaft, a reset member arranged on the first rotating shaft, a second connecting rod arranged on the nozzle, a third connecting rod passed through the turntable, a first ball arranged on the end of the third connecting rod and a driving sleeve arranged on the bottom surface of the cleaning frame, half of the end of the driving sleeve rises in a spiral and the other half descends in a spiral.

[0017] Preferably, the drying mechanism also includes a connecting rod arranged on the side wall of the box body, a first connecting plate arranged on the connecting rod, a flattening roller arranged on the first connecting plate, a scraping plate arranged on the first connecting plate, a fixed seat arranged on the outer wall of the box body, a screw arranged on the fixed seat for rotation, a limiting rod arranged on the fixed seat and a second connecting plate arranged on the connecting rod, the second connecting plate is provided with a guide hole cooperating with the limiting rod, the second connecting plate is provided with a threaded hole cooperating with the screw, and the side wall of the box body is provided with a slide groove cooperating with the connecting rod.

[0018] Preferably, the connecting mechanism includes a rotating shaft disposed within the sleeve, a plurality of push plates disposed on the rotating shaft, a limiting protrusion disposed on the outer wall of the sleeve, a locking rod disposed on the sleeve, a baffle disposed on the locking rod, a handle disposed on the rotating shaft, a third elastic member sleeved on the locking rod, a second ball bearing and a limiting assembly disposed on the end of the locking rod, and a winding roller having a locking hole that cooperates with the locking rod.

[0019] Preferably, the limiting assembly includes a connecting sleeve arranged on the end of the sleeve, a mounting hole arranged on the rotating shaft, a fourth elastic member arranged in the mounting hole, a push rod arranged on the end of the fourth elastic member and a third ball arranged on the end of the push rod, the connecting sleeve is provided with a through hole cooperating with the rotating shaft, and the inner wall of the through hole is provided with a groove cooperating with the third ball.

[0020] Preferably, the partition is provided with a material passage opening, and first guide rollers are provided on both sides of the material passage opening.

[0021] By adopting the above technical solution, the glue can be prevented from falling directly onto the heating wire and the motor, thereby ensuring the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of this application are used to provide a further understanding of this application and make other features, purposes and advantages of this application more apparent. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.

[0023] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the elements and components are not necessarily drawn to scale.

[0024] In the attached figure:

[0025] Figure 1 Schematic diagram of the paint protection film structure of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the coating device of the present invention.

[0027] Figure 3 For the present invention Figure 2 Schematic diagram of the internal structure.

[0028] Figure 4 For the present invention Figure 2 Magnified view of point A.

[0029] Figure 5 It is a structural schematic diagram of the drying mechanism of the coating device of the present invention.

[0030] Figure 6 for Figure 5 Magnified view of point A.

[0031] Figure 7 It is a partial structural schematic diagram of the cleaning component of the coating device of the present invention.

[0032] Figure 8 It is a schematic diagram of the partial structure coordination of the cleaning component of the coating device of the present invention.

[0033] Figure 9 It is a partial structural schematic diagram of the drying mechanism of the coating device of the present invention.

[0034] Figure 10 It is a partial structural schematic diagram of the connecting mechanism of the coating device of the present invention.

[0035] Figure 11 for Figure 10 Schematic diagram of the internal structure.

[0036] Figure 12 It is a partial structural schematic diagram of the recovery mechanism of the coating device of the present invention. DETAILED DESCRIPTION

[0037] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0038] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0039] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0040] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0041] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0042] like Figure 1 As shown, a matte tape repair and stain-resistant paint protective film includes a protective film layer L1, an anti-fouling layer L2, a matte coating L3, a base film layer L4, a pressure-sensitive adhesive layer L5, and a release material layer L6 arranged in sequence, wherein the protective film layer L1 is one of a silicone protective film, an acrylic protective film, and a PE electrostatic film, preferably a silicone protective film; the anti-fouling layer L2 is one of a polyurethane coating containing perfluorinated resin, fluorosilicone resin, and silicone resin, preferably a polyurethane coating of silicone resin; the matte coating L3 is one of a thermosetting polyurethane and a light-curing acrylic-polyurethane resin, preferably a light-curing acrylic-polyurethane resin; the base film layer L4 is one of a TPH film, a TPU film, and a PU film, preferably a TPH film; the pressure-sensitive adhesive layer L5 is one of a single-component acrylic adhesive and a two-component acrylic adhesive, preferably a two-component acrylic adhesive; the release material layer L6 is one of a single-sided matte silicone oil release film, a double-sided matte silicone oil release film, and a glossy silicone oil release film; preferably a glossy silicone oil release film.

[0043] A preparation process for a matte tape repair and stain-resistant paint protective film, the preparation process comprising the following steps:

[0044] S1. Select the appropriate base film material according to the required protection effect and performance requirements;

[0045] S2. Surface treatment of the base film to improve adhesion and cohesion;

[0046] S3, using a coating device to evenly coat different coatings on different base film surfaces to form a protective film layer, an anti-fouling layer, a matte coating layer, a base film layer, and a pressure-sensitive adhesive layer;

[0047] S4, pressing the protective film layer, the anti-fouling layer, the matte coating layer, the base film layer, the pressure-sensitive adhesive layer and the release material layer to form a composite structure;

[0048] S5. Use heat, ultraviolet rays or chemical reactions to cure the paint and enhance the performance of the paint protective film.

[0049] like Figure 2-12 As shown, a coating device for a matte tape repair and stain-resistant paint protective film includes a box body 1, a fixing frame 2, a unwinding roller 3, a sleeve 4, a first driving member, a winding roller 5, a storage box 6, a glue coating roller 61, a drying mechanism, a recovery mechanism and a connecting mechanism. A feed port 11 and a discharge port 12 are provided on both sides of the box body 1; the fixing frame 2 is symmetrically arranged on both sides of the box body; the unwinding roller 3 is rotatably arranged on the fixing frame 2, and a protective film raw material (base film) is wound thereon; the sleeve 4 is rotatably arranged on the fixing frame; the first driving member is a conventional motor, and its output shaft is connected to the sleeve; the storage box 6 is fixed in the box body, and glue is placed therein; the glue coating roller 61 is rotatably arranged in the storage box, and is driven to rotate by the motor, and the protective film raw material enters the box body from the feed port, is then wound around the glue coating roller, and is then wound around the winding roller through the discharge port; the winding roller 5 is detachably connected to the sleeve through a connecting mechanism.

[0050] Specifically, the drying mechanism includes a partition 91, a motor 92, a rotating shaft, a first fan blade 94, a heating wire 97, a baffle 98, a stopper 99, an air guide block 100, a guide plate 101, a baffle sleeve 102, a support rod 103, a connecting frame 104 and a second driving member 105 that drives the connecting frame to move up and down. The partition 91 is fixed to the inner wall of the box and has a material passage opening; the motor 92 is a conventional servo motor, which is fixed to the bottom wall of the box; one end of the rotating shaft Fixed on the output shaft of the motor; the first fan blade 94 is fixed on the rotating shaft; the heating wire 97 is fixed on the inner wall of the box, which is located directly above the first fan blade; the blocking plate 98 is fixed on the inner wall of the box, which is evenly provided with multiple air outlet holes, and is located above the heating wire; the stopper 99 is truncated cone-shaped, which corresponds to the air outlet hole, and the maximum outer diameter of the stopper is larger than the aperture of the air outlet hole; the air guide block 100 is fixed on the bottom of the stopper, which is truncated cone-shaped; the guide plate 101 is fixed on the outer wall of the stopper The blocking sleeve 102 is set corresponding to the air outlet, which is fixed on the blocking plate, and its inner diameter is the same as the aperture of the air outlet; the support rods 103 are respectively fixed to the bottom of the air guide block; the connecting frame 104 is connected to the bottom end of each support rod, and the side wall of the body is provided with a driving groove that cooperates with the connecting frame; the second driving member 105 is an electric push rod, one end of which is fixed on the connecting frame to drive the connecting frame to move up and down. When the glue is dried, the fixing frame is driven up by the second driving member, so that the guide The air block is moved out of the air outlet, and then the motor and heating wire are started. The first fan blade will drive the gas to blow toward the baffle plate, and then be discharged along the air outlet. The hot air will blow toward the protective film raw material, thereby drying the glue. Most of the glue falling from the protective film raw material will fall directly onto the baffle plate. The blocking sleeve can prevent the glue from flowing toward the air outlet. The glue falling from directly above the air outlet will fall onto the block and flow along the guide plate to the baffle plate, thereby preventing the glue from falling onto the heating wire and the motor.

[0051] Specifically, the recycling mechanism includes a collection box 71, a cleaning port, a sealing door 72, a cleaning rack 73, a cleaning assembly, a guide plate 75, a guide rod 76 and a third driving member 77 for driving the cleaning rack to move left and right. The collection box 71 is fixed on the bottom surface of the side edge of the barrier plate, and is connected to a negative pressure collection device through a pipe; the cleaning port is opened on the side wall of the box body, which can allow the cleaning assembly and the cleaning rack to pass through; the sealing door 72 is rotatably connected to the outer wall of the box body for sealing the cleaning port; the guide plate 75 is fixed on the outer wall of the box body; the guide rod 76 is passed through the guide plate and can slide relative to the guide plate; the third driving member 77 uses an electric push rod, the output end of which is connected to the cleaning rack, which can drive the cleaning rack to move left and right; the cleaning assembly is arranged corresponding to a row of air outlet holes.

[0052] Specifically, each cleaning assembly includes a cleaning shaft 751, a rotating disk 752, a first sprocket 754, a second sprocket, a chain 756, a fourth driving member 757, a mounting plate 758, a sliding rod 759, a first scraper 781, a first baffle 782, a first elastic member 783, a first connecting rod 784, a second scraper 785, a second elastic member 786, a third scraper 787 and a fourth scraper 788. The cleaning shaft 751 is rotatably connected to the cleaning frame; the rotating disk 752 is fixed to the end of the cleaning shaft; the first sprocket 754 is fixed to the cleaning shaft; the chain 756 is sleeved on the first sprocket and the second sprocket; the fourth driving member 757 is a servo motor, which is fixed to the cleaning frame; the second sprocket is fixed On the output shaft of the fourth driving member; the mounting plate 758 is symmetrically tilted and fixed on the bottom surface of the turntable; the sliding rod 759 is passed through the mounting plate, which can slide relative to the mounting plate; the first scraper 781 is fixed to the end of the sliding rod, and can fit the block and the guide plate; the first elastic member 783 is a spring, which is sleeved on the sliding rod, and one end of which is fixed to the first scraper and the other end is fixed to the mounting plate. By pushing the first scraper through the first elastic member, it is possible to ensure that the first scraper fits the block, and it is also convenient for the first scraper to collide with the block during the left and right movement; the first baffle 782 is fixed to the end of the sliding rod; one end of the first connecting rod 784 is fixed to the cleaning frame; the second scraper 785 is fixed to the end of the first connecting rod , which fits with the blocking plate and has a sliding groove; the second elastic member 786 is a spring, one end of which is fixed in the sliding groove; one end of the third scraper 787 is fixed to the end of the second elastic member, which can slide relative to the sliding groove, and fits with the blocking plate; the fourth scraper 788 is fixed to the end of the third scraper, which is curved in an arc shape, and a fifth scraper 789 is fixed on the side of the fourth scraper. When it is necessary to clean and collect the glue dripping on the block and the blocking plate, open the sealing door and move the connecting frame downward so that the air guide block is inserted into the air outlet; then start the third driving member to push the cleaning frame to move to the left. During the left movement, the second scraper, the third scraper and the fourth scraper will scrape off the glue on the blocking plate. When the fourth scraper contacts the blocking sleeve, the blocking sleeve will push the third scraper to move into the sliding groove. During the movement of the fourth scraper with the third scraper, the fifth scraper will scrape the glue on the outer wall of the blocking sleeve. When the turntable moves to just above the block, stop moving the cleaning frame, start the fourth driving member to drive the turntable to rotate, and then drive the first scraper to rotate on the outer wall of the block, thereby scraping off the glue on the outer wall of the block. After rotating the turntable for an integer number of cycles, move the turntable to just above the next row of air holes, repeat the above operation, and thus clean each block and blocking sleeve. When it moves to the end of the blocking plate, the second scraper, the third scraper and the fourth scraper push the scraped glue into the collection box, thereby completing the cleaning and collection of the glue.

[0053] As a preferred solution, the cleaning assembly comprises a first rotating shaft 791, a nozzle 792, an air storage member, a reset member 793, a second connecting rod 794, a third connecting rod 795, a first ball 796 and a driving sleeve 797. The first rotating shaft 791 is rotatably connected to the mounting plate; the air storage member (not shown) can be a small air pump or an air tank, which is fixed on the rotating disk; the nozzle 792 is fixed on the first rotating shaft and is connected to the air storage member through a hose; the reset member 793 is a torsion spring, which is sleeved on the first rotating shaft, and one torsion arm of the spring is fixed on the mounting plate, and the other torsion arm is fixed on the first rotating shaft; one end of the second connecting rod 794 is hinged on the nozzle; the third connecting rod 795 is hinged on the nozzle; 795 is passed through the turntable and can slide up and down relative to the turntable, and one end of it is hinged on the second connecting rod; the first ball 796 is rotatably connected to the end of the third connecting rod; the driving sleeve 797 is fixed on the bottom of the cleaning frame, and half of the end of the driving sleeve rises in a spiral and half descends in a spiral. During the rotation of the turntable, the end of the driving sleeve will gradually press down the third connecting rod, thereby driving the nozzle to rotate, and under the action of the reset member, the nozzle rotates back and forth, and then the nozzle will spray at different positions of the first scraper, thereby blowing off the glue scraped off by the first scraper to prevent the glue from docking on the first scraper, thereby ensuring the scraping effect of the first scraper.

[0054] In other embodiments, the drying mechanism further includes a sliding groove provided on the side wall of the box body and cooperating with the connecting rod, including a connecting rod 21, a first connecting plate 22, a flattening roller 23, a scraping plate 24, a fixing seat 25, a screw 26, a limiting rod 27 and a second connecting plate 28. A sliding groove 13 is provided on the side wall of the box body, and the connecting rod 21 is provided in the sliding groove, which can slide up and down relative to the sliding groove; the first connecting plate 22 is fixed to the end of the connecting rod; the flattening roller 23 is rotatably connected to the mounting plate; the scraping plate 24 is fixed to the mounting plate; the fixing seat 25 is fixed to the outer wall of the box body; the screw 2 6 is rotatably connected to the fixed seat; one end of the limiting rod 27 is fixed to the fixed seat; the second connecting plate 28 is symmetrically fixed on both sides of the connecting rod, the first connecting plate is provided with a guide hole that cooperates with the limiting rod, and the second connecting plate is provided with a threaded hole that cooperates with the screw. The glue can be flattened by the flattening roller, and then the excess glue can be scraped onto the scraper plate by the scraper plate, and then returned to the storage box through the scraper, so as to ensure uniform glue and recovery of excess glue, and the mounting plate can be moved up and down by rotating the screw, thereby adjusting the distance between the flattening roller, the scraper plate and the protective film.

[0055] Specifically, the connecting mechanism includes a rotating shaft 81, a push plate 82, a limiting protrusion 83, a locking rod 84, a baffle 85, a handle 86, a third elastic member 87, a second ball 841 and a limiting assembly. The rotating shaft 81 is rotatably arranged in the sleeve; the push plate 82 is evenly fixed on the rotating shaft and is provided with an arc-shaped curved surface; the limiting protrusion 83 is fixed on the outer wall of the sleeve, and the winding roller is provided with a limiting groove for the limiting protrusion to be inserted; the locking rod 84 is passed through the sleeve and can slide relative to the outer wall of the sleeve; the baffle 85 is fixed on the outer wall of the locking rod; the handle 86 is fixed on the end of the rotating shaft; the second ball 841 is rotatably connected to the end of the locking rod; the third elastic member 87 is a metal spring. It is sleeved on the locking rod, and one end of it is fixed on the baffle, and the other end is fixed on the inner wall of the sleeve. The winding roller is provided with a locking hole that cooperates with the locking rod. When installing the winding roller, align the limiting protrusion with the limiting groove, and then sleeve the winding roller on the sleeve. Then, rotate the rotating shaft by the handle, push the locking rod up by the push plate, and then insert the locking rod into the locking hole, thereby completing the fixation of the winding roller and the sleeve, and the installation is convenient; when the collecting roller has finished collecting, rotate the rotating shaft in the opposite direction, the first elastic member will pull the locking rod out of the locking hole, and then take out the winding roller, and then repeat the installation steps to install the new winding roller. Replacing the winding roller is very convenient.

[0056] As a preferred solution, the limiting assembly includes a connecting sleeve 881, a mounting hole 882, a fourth elastic member 883, a push rod 884 and a third ball 885. The connecting sleeve 881 is fixed to the end of the sleeve, and the connecting sleeve is provided with a through hole for the rotating shaft to pass through and rotate; the mounting hole 882 is opened on the rotating shaft; the fourth elastic member 883 is a metal spring, one end of which is fixed in the mounting hole; one end of the push rod 884 is fixed to the end of the second elastic member, which can slide relative to the inner wall of the mounting hole; the third ball 885 is rotatably connected to the end of the push rod, and the inner wall of the through hole is provided with a card groove that cooperates with the first ball. When the locking rod is inserted into the locking hole, the first ball is aligned with the card groove, and the second elastic member will push the first ball into the card groove, thereby limiting the rotating shaft to prevent the rotating shaft from rotating during the winding process.

[0057] In other embodiments, a partition 94 is provided on the inner wall of the box, and a material passage 911 is provided on the partition 91 to ensure the drying effect and prevent hot air from contacting the glue in the storage box; a first guide roller 912 is provided on both sides of the material passage; and a second guide roller 913 is provided at the discharge port.

[0058] The above description is only an illustration of some preferred embodiments of the present disclosure and the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A matte repair and stain-resistant paint protection film, characterized by: It includes a protective film layer, an anti-fouling layer, a matte coating layer, a base film layer, a pressure-sensitive adhesive layer and a release material layer which are arranged in sequence.

2. A process for preparing a matte repairable stain-resistant paint protective film, characterized in that: The preparation process comprises the following steps: S1. Select the appropriate base film material according to the required protection effect and performance requirements; S2. Surface treatment of the base film to improve adhesion and cohesion; S3, using a coating device to evenly coat different coatings on different base film surfaces to form a protective film layer, an anti-fouling layer, a matte coating layer, a base film layer, and a pressure-sensitive adhesive layer; S4, pressing the protective film layer, the anti-fouling layer, the matte coating layer, the base film layer, and the pressure-sensitive adhesive layer to form a composite structure; S5. Use heat, ultraviolet rays or chemical reactions to cure the paint and enhance the performance of the paint protective film.

3. A coating device for a matte, repairable, and stain-resistant paint protective film, comprising: The roller conveyor belt conveyor of claim 1, wherein the roller conveyor belt conveyor is configured to convey the rollers to the roller conveyor belt conveyor, wherein the rollers are movable along the roller conveyor belt conveyor belt.

4. The coating device for a matte repairable stain-resistant paint protective film according to claim 3, characterized in that: The coating device also includes a recovery mechanism for recovering the fallen glue liquid, and the recovery mechanism includes a collection box arranged on the bottom surface of the blocking plate, a cleaning port arranged on the side wall of the box body, a sealing door arranged on the cleaning port, a cleaning rack, a plurality of cleaning components arranged on the cleaning rack, a guide plate arranged on the outer wall of the box body, a guide rod arranged on the guide plate and a third driving member for driving the cleaning rack to move left and right, and the cleaning components are arranged corresponding to the air outlet.

5. The coating device for matte repairable anti-fouling paint protective film according to claim 4, characterized in that: The cleaning assembly includes a cleaning shaft arranged on the cleaning frame, a turntable arranged on the cleaning shaft, a first sprocket arranged on the cleaning shaft, a second sprocket, a chain connecting the first sprocket and the second sprocket, and a fourth driving member for driving the second sprocket to rotate, a mounting plate symmetrically arranged on the bottom surface of the turntable, a sliding rod arranged on the mounting plate, a first scraper arranged on the end of the sliding rod, a first baffle arranged on the sliding rod, a first elastic member sleeved on the sliding rod, a first connecting rod arranged on the cleaning frame, a second scraper provided with a sliding groove, a second elastic member arranged in the sliding groove, a third scraper arranged on the end of the second elastic member, and a fourth scraper arranged on the third scraper, the second scraper is fixed on the first connecting rod, the second scraper can be attached to the top surface of the barrier plate, and the fourth scraper is curved in an arc shape.

6. The coating device for matte repairable stain-resistant paint protective film according to claim 5, characterized in that: The cleaning assembly also includes a first rotating shaft arranged on the mounting plate, a nozzle arranged on the first rotating shaft, a reset member arranged on the first rotating shaft, a second connecting rod arranged on the nozzle, a third connecting rod passed through the turntable, a first ball arranged on the end of the third connecting rod and a driving sleeve arranged on the bottom surface of the cleaning frame, wherein half of the end of the driving sleeve rises in a spiral and the other half descends in a spiral.

7. The coating device for a matte repairable stain-resistant paint protective film according to claim 3, characterized in that: The drying mechanism also includes a connecting rod arranged on the side wall of the box body, a first connecting plate arranged on the connecting rod, a flattening roller arranged on the first connecting plate, a scraping plate arranged on the first connecting plate, a fixing seat arranged on the outer wall of the box body, a screw rod rotatably arranged on the fixing seat, a limiting rod arranged on the fixing seat and a second connecting plate arranged on the connecting rod, the second connecting plate is provided with a guide hole cooperating with the limiting rod, the second connecting plate is provided with a threaded hole cooperating with the screw rod, and the side wall of the box body is provided with a sliding groove cooperating with the connecting rod.

8. The coating device for a matte repairable stain-resistant paint protective film according to claim 3, characterized in that: The connecting mechanism includes a rotating shaft arranged in the sleeve, a plurality of push plates arranged on the rotating shaft, a limiting protrusion arranged on the outer wall of the sleeve, a locking rod arranged on the sleeve, a baffle arranged on the locking rod, a handle arranged on the rotating shaft, a third elastic member sleeved on the locking rod, a second ball and a limiting assembly arranged on the end of the locking rod, and the winding roller is provided with a locking hole that cooperates with the locking rod.

9. The coating device for matte repairable anti-fouling paint protective film according to claim 8, characterized in that: The limiting assembly includes a connecting sleeve arranged on the end of the sleeve, a mounting hole arranged on the rotating shaft, a fourth elastic member arranged in the mounting hole, a push rod arranged on the end of the fourth elastic member and a third ball arranged on the end of the push rod. The connecting sleeve is provided with a through hole that cooperates with the rotating shaft, and the inner wall of the through hole is provided with a groove that cooperates with the third ball.

10. The coating device for matte repairable stain-resistant paint protective film according to claim 3, characterized in that: The partition is provided with a material passage opening, and first guide rollers are provided on both sides of the material passage opening.

Images