Automatic laminating and gluing machine for protective film

Abstract

The invention relates to the technical field of gumming machines, and discloses a protective film automatic laminating gumming machine which comprises a machine body, a conveying roller, a gumming roller, a glue collecting component, a driving component, a glue box body and a control panel. The glue collecting component is composed of a glue scraping assembly and a glue removing assembly. The glue scraping assembly comprises a glue scraping box, a flow guide plate arranged on the inner wall of the glue scraping box, glue discharging openings symmetrically distributed in the two ends of the glue scraping box and communicated with the interior of the glue scraping box, and an attaching unit located between the glue coating roller and the glue scraping box. According to the automatic laminating and gluing machine for the protective film, the conveying direction of the protective film is changed from the horizontal direction to the vertical direction by arranging the laminating seat, and the protective film is pressed and held by matching with the glue scraping tension roller, so that the glue scraping box scrapes residual glue in the vertical direction of the protective film, and the problem that the residual glue drips onto the surface of the film again due to gravity of a traditional fixed-angle glue scraping plate or a single-direction glue scraping blade is solved.

Description

Technical Field

[0001] This invention relates to the technical field of adhesive applicators, and more particularly to an automated adhesive applicator for applying protective films. Background Technology

[0002] With the rapid development of industries such as electronic information, optical display, and precision manufacturing, products such as smartphone screens, automotive displays, laptop casings, optical lenses, and precision metal parts are easily scratched, contaminated, or damaged by external impacts during production, transportation, and assembly. Therefore, it is necessary to apply protective films to protect the surfaces.

[0003] Protective film lamination requires precise application of adhesive to the product surface or the surface to which the protective film will be applied before efficient bonding. Currently, most automated protective film lamination and adhesive application equipment on the market achieves the operation through a series of processes including unwinding mechanism, adhesive application mechanism, positioning mechanism, pressing mechanism, and rewinding mechanism. Some equipment is also equipped with an adhesive scraping mechanism to remove excess adhesive.

[0004] However, when using a scraper to remove residual adhesive from the protective film, traditional scraping mechanisms often employ scrapers with fixed angles or unidirectional scraping blades positioned above the protective film. This results in the scraping position being above the protective film, causing the residual adhesive to drip back onto the protective film surface due to gravity after detaching from the scraping component. Especially when the protective film is continuously being transported, the dripping residual adhesive can cause secondary contamination as the film moves, resulting in irregular residual adhesive remaining on the film surface and severely affecting the thoroughness of the scraping. Summary of the Invention

[0005] Given that existing adhesive scraping mechanisms mostly use scraper blades with fixed angles or unidirectional scraper blades, some of the scraped residual adhesive is prone to fall back, resulting in incomplete scraping and insufficient residual adhesive recovery, an automated protective film laminating and coating machine is proposed.

[0006] This application provides an automated adhesive coating machine for protective films, the purpose of which is to prevent scraped-off residual adhesive from dripping back onto the protective film, achieve automatic cleaning, and complete the recycling of residual adhesive.

[0007] The technical solution of this invention is: an automated protective film laminating and adhesive coating machine, comprising:

[0008] Main body of the fuselage;

[0009] Conveyor rollers are rotatably connected to both sides of the main body of the machine.

[0010] The glue-applying roller is located inside the main body of the machine.

[0011] The glue collection component is located inside the main body of the machine and below the glue coating roller. The glue collection component is used to scrape off and collect the residual glue on the protective film.

[0012] The drive unit is mounted on the main body of the machine. The drive unit provides power to the scraping assembly and the coating roller through the excitation assembly and the main drive assembly, respectively.

[0013] The glue box body is located above the glue coating roller;

[0014] The control panel is located on the main body of the device.

[0015] The glue collection component consists of a glue scraping assembly and a glue clearing assembly. The glue scraping assembly includes a glue scraping box located on the side of the machine body away from the glue coating roller, a guide plate located on the inner wall of the glue scraping box, glue discharge ports symmetrically distributed at both ends of the glue scraping box and connected to the inside of the glue scraping box, and a bonding unit located between the glue coating roller and the glue scraping box.

[0016] The bonding unit includes a bonding seat disposed between the coating roller and the scraper box. The bonding seat is respectively provided with a scraper tension roller and a horizontal tension roller distributed parallel to the axial direction of the coating roller. The scraper tension roller and the horizontal tension roller are rotatably connected to the vertical end of the bonding seat. The scraper tension roller is located between the bonding seat and the scraper box. The main body of the machine is also provided with a pressure roller. The pressure roller is rotatably connected below the coating roller and distributed parallel to the axial direction of the coating roller. A coating area for controlling the coating thickness is also provided between the pressure roller and the coating roller.

[0017] Furthermore, the adhesive removal assembly includes a guide rail body fixedly installed on both ends of the adhesive scraper box, a guide rail slider slidably connected to the guide rail body, a vertical rod slidably connected to the guide rail body, an adhesive removal block disposed at one end of the vertical rod extending into the adhesive scraper box, and a guide unit disposed at the end of the vertical rod away from the adhesive removal block. The vertical rod is vertically distributed on the adhesive scraper box, and the adhesive removal block has a notch on the side near the adhesive scraper tension roller.

[0018] Furthermore, the guide unit includes a triangular slide rail disposed above the glue scraper box, a deflection arm disposed on the side of the triangular slide rail near the guide rail body, a slide rail slider disposed in the groove of the deflection arm, and a pin disposed on the slide rail slider. The slide rail slider is hinged to the end of the vertical rod away from the glue scraper block through the pin. A triangular groove for limiting the movement of the pin is provided on the side of the triangular slide rail near the deflection arm.

[0019] Furthermore, the adhesive removal assembly also includes an eccentric wheel disposed on the side of the triangular slide rail away from the deflection arm, a transmission rod disposed on the side of the eccentric wheel away from the guide unit, and a protruding shaft disposed on one end of the transmission rod away from the eccentric wheel. The eccentric wheel is coaxially distributed with the deflection arm, the transmission rod is hinged to the eccentric shaft on the eccentric wheel, and the transmission rod is connected to the excitation assembly through the protruding shaft.

[0020] Furthermore, the excitation assembly includes a support seat disposed on the inner wall of the main body, a guide slide disposed in a groove on the support seat, an excitation block disposed on the side of the guide slide away from the support seat, an instantaneous firing unit disposed on the side of the guide slide away from the support seat, a spring disposed between the instantaneous firing unit and the excitation block, and a trigger unit located above the instantaneous firing unit.

[0021] Furthermore, the instantaneous unit includes an instantaneous seat disposed in a groove in the guide slide, a guide slide rod disposed at one end of the instantaneous seat near the excitation block, and an instantaneous locking block disposed on the side of the instantaneous seat away from the guide slide. The end of the guide slide rod away from the instantaneous seat passes through the excitation block. The spring is sleeved on the outside of the guide slide rod, and its two ends are fixedly connected to the instantaneous seat and the vertical rod, respectively.

[0022] Furthermore, the triggering unit includes a trigger rod disposed above the instantaneous firing base, a trigger block disposed on the side of the trigger rod near the instantaneous firing base, and a triggering block disposed on the trigger rod.

[0023] A reset shaft is located at the end away from the instantaneous trigger block. The trigger block is adapted to the instantaneous trigger block. The end of the trigger rod away from the reset shaft has an inclined surface adapted to the excitation block. The trigger rod is rotatably connected to the inner wall of the main body of the machine body through the reset shaft.

[0024] Furthermore, the main drive assembly includes a rubber roller motor located on the side of the machine body near the control panel, a reciprocating unit driven by the rubber roller motor, and a rubber roller differential located between the rubber roller motor and the coating roller.

[0025] Furthermore, the reciprocating unit includes motor pulleys symmetrically arranged on the inner wall of the machine body, rubber roller pulleys arranged at both ends of the coating roller, a pulley connecting rod arranged between the motor pulleys and the rubber roller pulleys, and a reciprocating slide at the end of the pulley connecting rod away from the motor pulleys and the rubber roller pulleys. The motor pulleys are drivenly connected to the output shaft of the rubber roller motor. The motor pulleys and the pulley connecting rods are hinged to the rubber roller pulleys. The end of the reciprocating slide away from the motor pulleys and the rubber roller pulleys is fixedly connected to the excitation block and has an avoidance groove for avoiding the trigger rod.

[0026] The beneficial effects of this invention are:

[0027] 1. By setting up a bonding seat, the conveying direction of the protective film is changed from horizontal to vertical. With the help of the glue scraping tension roller, the protective film is pressed and held, so that the glue scraper box scrapes off the residual glue in the vertical direction of the protective film. This avoids the problem of the residual glue dripping back onto the film surface due to gravity caused by traditional fixed-angle glue scrapers or unidirectional glue scraping blades.

[0028] 2. The guide rail slider in the glue removal assembly drives the vertical rod and the glue removal block to make a "up and down + left and right" compound movement, which cleans the residual glue adsorbed on the surface of the glue removal components in real time, avoiding the deformation of the traditional fixed angle glue scraper or unidirectional glue scraper blade due to residual glue adsorption.

[0029] 3. By cooperating with the instantaneous unit and triggering unit in the excitation component, the "power storage-instantaneous release" power control is achieved. After the spring stores the power, it releases the power instantly, driving the cleaning block of the cleaning component to efficiently clean the residual glue in the scraper box and the glue discharge port. At the same time, the scraped residual glue can be recycled in time through the glue discharge port, avoiding the difficulty in cleaning and recycling the residual glue that solidifies into lumps due to long-term residue in traditional scraping mechanisms. Attached Figure Description

[0030] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a second-view three-dimensional structural diagram of the present invention;

[0032] Figure 3 This is a top view of the structure of the present invention;

[0033] Figure 4 For the present invention Figure 3 Sectional view along line AA;

[0034] Figure 5 This is a three-dimensional structural diagram of the mating and mounting portion of the driving component and the adhesive collecting component of the present invention;

[0035] Figure 6 This is a partial three-dimensional structural diagram of the transmission component of the present invention. Figure 1 ;

[0036] Figure 7 This is a partial three-dimensional structural diagram of the transmission component of the present invention. Figure 2 ;

[0037] Figure 8 For the present invention Figure 6 Schematic diagram of the installation structure of the main drive assembly and the coating roller;

[0038] Figure 9 For the present invention Figure 3 Sectional view along the BB direction.

[0039] In the picture:

[0040] 1. Main body of the machine; 2. Conveyor roller; 3. Glue coating roller; 4. Glue tank body; 5. Control panel; 6. Glue scraper assembly; 61. Glue scraper box; 62. Guide plate; 63. Glue discharge port; 64. Laminating unit; 641. Laminating seat; 642. Glue scraper tension roller; 643. Horizontal tension roller; 65. Pressure roller; 7. Glue cleaning assembly; 71. Guide rail body; 72. Guide rail slider; 73. Vertical rod; 74. Glue cleaning block; 75. Guide unit; 751. Triangular slide rail; 752. Deflection arm; 753. Slide rail slider; 754. Pin shaft; 76. Eccentric rotor 77. Wheel; 78. Transmission rod; 89. Protruding shaft; 80. Excitation assembly; 81. Bearing seat; 82. Guide slide; 83. Excitation block; 84. Instantaneous unit; 841. Instantaneous seat; 842. Guide slide; 843. Instantaneous locking block; 85. Spring; 86. Trigger unit; 861. Trigger rod; 862. Trigger locking block; 863. Reset shaft; 90. Main drive assembly; 91. Rubber roller motor; 92. Reciprocating unit; 921. Motor protruding wheel; 922. Rubber roller protruding wheel; 923. Protruding wheel connecting rod; 924. Reciprocating slide; 93. Rubber roller differential. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] Example 1, referring to Figure 1-4 This first embodiment of the invention provides an automated protective film laminating and coating machine, comprising a main body 1; conveying rollers 2 rotatably connected to both sides of the main body 1; coating rollers 3 disposed inside the main body 1; a glue collection component disposed inside the main body 1 and located below the coating rollers 3, the glue collection component being used to scrape and collect residual glue on the protective film; a drive component disposed on the main body 1, the drive component providing power to the scraping component 6 and the coating rollers 3 respectively through an excitation component 8 and a main drive component 9; a glue tank body 4 disposed above the coating rollers 3; and a control panel 5 disposed on the main body 1.

[0043] The glue collection component consists of a scraper assembly 6 and a glue removal assembly 7. The scraper assembly 6 includes a scraper box 61 located on the side of the machine body 1 away from the coating roller 3, a guide plate 62 on the inner wall of the scraper box 61, glue discharge ports 63 symmetrically distributed at both ends of the scraper box 61 and connected to the interior of the scraper box 61, and a bonding unit 64 located between the coating roller 3 and the scraper box 61. The machine body 1 is the basic support frame of the entire machine, and its external dimensions can be designed according to the processing width of the protective film. The conveyor roller 2 is the core component for conveying and guiding the protective film, and multiple sets can be set according to actual usage requirements. Symmetrical rotating connections are installed on both sides of the feed and discharge ends of the main body 1, enabling tension adjustment and conveying of the protective film. Two guide plates 62 are symmetrically inclined and arranged on the inner walls of both sides of the scraper box 61. Their function is to guide the scraped residual glue to the bottom of the scraper box 61, preventing residual glue from accumulating on the box wall. The lower end of the guide plate 62 extends to the glue discharge port 63, forming a "funnel-shaped" guide structure to ensure that there is no residue. The glue discharge port 63 is connected to the glue return port of the glue tank body 4 through a PU hose after filtration, realizing the recycling of residual glue. A one-way valve and a filter are installed on the hose.

[0044] Specifically, the adhesive required for the protective film is first added to the glue tank body 4. The protective film is then tensioned and conveyed by the conveying roller 2. The main drive component 9 in the drive unit drives the coating roller 3 to rotate, and the adhesive released from the glue tank body 4 is applied to the protective film evenly by rotating the coating roller. The excess adhesive residue on the protective film is scraped off by the scraping component 6 in the glue collection component. Finally, the adhesive cleaning component 7 is driven by the excitation component 8 in the drive unit to collect and utilize the scraped adhesive residue.

[0045] Reference Figure 9 The bonding unit 64 includes a bonding seat 641 disposed between the three coating rollers and the scraper box 61. The bonding seat 641 is respectively provided with a scraper tension roller 642 and a horizontal tension roller 643 distributed parallel to the axial direction of the coating rollers 3. The scraper tension roller 642 and the horizontal tension roller 643 are rotatably connected to the vertical end of the bonding seat 641. The scraper tension roller 642 is located between the bonding seat 641 and the scraper box 61. A pressure roller 65 is also disposed on the main body 1, rotatably connected below the coating rollers 3 and perpendicular to the axis of the coating rollers 3. The rollers are arranged in parallel. Between the pressure roller 65 and the glue-applying roller 3, there is a glue-applying area for controlling the glue thickness. The glue scraper box 61 has a scraper part with the same function as the conventional method on the side near the bonding seat 641. The inner wall is relatively smooth and it is not easy to stick residual glue. The bonding seat 641 is an "L" shaped structure and is installed on the machine body 1 by sliding connection. The height can be adjusted vertically by cylinder to adapt to protective films of different thicknesses. The adjustment method is the same as that of the pressure roller 65. The horizontal tension roller 643 is always consistent with the pressure roller 65 in vertical height.

[0046] Specifically, the pressure roller 65 adjusts its height vertically via a cylinder, adjusting the gap between it and the coating roller 3. This gap precisely controls the coating thickness of the protective film. The horizontal tension roller 643 maintains the horizontal tension of the protective film, preventing the film surface from loosening during scraping. The bonding seat 641 changes the direction of the protective film transport from horizontal to vertical. The scraping tension roller 642 presses the protective film to make it easier for the scraping box 61 to scrape off the residual adhesive on the protective film, and the scraped adhesive is less likely to drip back down.

[0047] Reference Figure 6 and Figure 7 The adhesive removal assembly 7 includes a guide rail body 71 fixedly mounted on both ends of the adhesive scraper box 61, a guide rail slider 72 slidably connected to the guide rail body 71, a vertical rod 73 slidably connected to the guide rail body 71, an adhesive removal block 74 disposed at one end of the vertical rod 73 extending into the adhesive scraper box 61, and a guide unit 75 disposed at the end of the vertical rod 73 away from the adhesive removal block 74. The vertical rod 73 is vertically distributed on the adhesive scraper box 61, and the adhesive removal block 74 has a notch on the side near the adhesive scraper tension roller 642. The guide rail body 71 has two symmetrically fixed guide rail bodies. The top of the scraper box 61 is installed at both ends, with the length consistent with the width of the scraper box 61. The guide rail slider 72 can slide back and forth along the guide rail axis and drive the vertical rod 73 to move synchronously in the horizontal direction, so as to realize the cleaning block 74 to clean the horizontal residual glue in the glue discharge port 63. The vertical rod 73 can be guided by the guide unit 75 to provide "up and down + left and right" compound motion guidance, so as to realize the cleaning block 74 to thoroughly clean the residual glue in the glue discharge port 63. The notch design is to avoid interference with the slope guide structure on the scraper box 61.

[0048] Specifically, by activating the drive of component 8, the guide rail slider 72 reciprocates horizontally along the guide rail body 71, while simultaneously driving the cleaning block 74 connected to the vertical rod 73 to move synchronously in the horizontal direction. At the same time, the guide rail slider 72 restricts the movement direction of the vertical rod 73, allowing it to move only in the vertical direction, thereby achieving a combined up-down and left-right motion guide, ensuring that the cleaning block 74 thoroughly cleans the residual glue in the glue discharge port 63.

[0049] During use, protective film-compatible adhesive is first added to the glue box body 4. The conveying roller 2 provides tension to the protective film and conveys it, so that the protective film is conveyed from the feed end and the discharge end. The main drive component 9 in the drive component drives the coating roller 3 to rotate. The adhesive released from the glue box body 4 is coated by the coating roller 3. At the same time, the pressure roller 65 adjusts its height in the vertical direction through the cylinder, changes the gap with the coating roller 3, and precisely controls the coating thickness of the protective film through this gap. After coating, the excess adhesive on the protective film needs to be scraped off. The horizontal tension roller 643 on the bonding seat 641 works with the pressure roller 65 to maintain the horizontal tension of the protective film and prevent the film surface from loosening when scraping the adhesive. The bonding seat 641 changes the conveying direction of the protective film from horizontal to vertical. The scraping tension roller 642 works to hold the protective film, making it easier for the scraping box 61 to scrape off the residual adhesive, and the residual adhesive is not easy to drip back after scraping.

[0050] At this time, the guide rail slider 72 moves horizontally back and forth along the guide rail body 71, driving the cleaning block 74 connected to the vertical rod 73 to move horizontally in sync. At the same time, the guide rail slider 72 restricts the vertical rod 73 to move vertically along it, so that the cleaning block 74 can achieve a compound motion of "up and down + left and right", thoroughly cleaning the residual glue in the glue discharge port 63, and finally completing the collection and utilization of residual glue.

[0051] The protective film is scraped and collected by the adhesive tension roller 642 pressing the film surface and the adhesive box 61 scraping the adhesive, and the conveying direction of the protective film is changed by the bonding seat 641, so that the residual adhesive of the protective film is not easy to fall back after scraping.

[0052] Example 2, refer to Figure 1-7 This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that the adhesive removal assembly 7 further includes an eccentric wheel 76 disposed on the side of the triangular slide rail 751 away from the deflection arm 752, a transmission rod 77 disposed on the side of the eccentric wheel 76 away from the guide unit 75, and a protruding shaft 78 disposed on one end of the transmission rod 77 away from the eccentric wheel 76. The eccentric wheel 76 is coaxially distributed with the deflection arm 752. The transmission rod 77 is hinged to the eccentric shaft on the eccentric wheel 76, and the transmission rod 77 is connected to the excitation assembly 8 via the protruding shaft 78. The eccentric wheel 76 can drive the transmission rod 77 to move via the eccentric shaft. The transmission rod 77 is hinged to the eccentric shaft of the eccentric wheel 76 via a spherical bearing. The protruding shaft 78 is a cylindrical pin, vertically fixed to the end of the transmission rod 77, and drives the transmission rod 77 to reciprocate through the sliding of the excitation assembly 8, thereby driving the eccentric wheel 76 to rotate, realizing the power linkage between the adhesive removal assembly 7 and the excitation assembly 8.

[0053] Specifically, when the excitation component 8 is activated and produces a sliding action, its sliding driving force is transmitted to the transmission rod 77 through the protruding shaft 78. Through the protruding shaft 78, which is a cylindrical pin, the transmission rod 77 is directly driven to reciprocate in the horizontal direction. Since the transmission rod 77 is hinged to the eccentric shaft of the eccentric wheel 76 through a spherical bearing, the reciprocating swing of the transmission rod 77 is converted into a driving force on the eccentric shaft of the eccentric wheel 76, thereby driving the eccentric wheel 76 to rotate around its own axis.

[0054] Reference Figure 6 and Figure 7 The guide unit 75 includes a triangular slide rail 751 disposed above the scraper box 61, a deflection arm 752 disposed on the side of the triangular slide rail 751 near the guide rail body 71, a slide rail slider 753 disposed in the groove of the deflection arm 752, and a pin 754 disposed on the slide rail slider 753. The slide rail slider 753 is hinged to the end of the vertical rod 73 away from the cleaning block 74 via the pin 754. A triangular groove for limiting the movement of the pin 754 is provided on the side of the triangular slide rail 751 near the deflection arm 752. The triangular slide rail 751 has an isosceles triangle frame structure and is fixedly installed on the scraper box 61. The upper part of the protective film avoids the movement trajectory of the protective film. The three vertices of the upper triangular groove correspond to the "initial position, upper cleaning position, and lower cleaning position" of the cleaning block 74. Through the sliding of the pin 754 in the triangular groove, the slide rail slider 753 drives the vertical rod 73 to achieve multi-position cleaning. The deflection arm 752 can rotate synchronously with the eccentric wheel 76. The slide rail slider 753 can slide along the length of the groove on the deflection arm 752. At the same time, the pin 754 moves along the triangular groove, driving the cleaning block 74 on the vertical rod 73 to achieve a triangular movement trajectory of "up and down lifting + left and right translation". The cleaning block 74 fully covers the glue discharge port 63.

[0055] Specifically, since the eccentric wheel 76 and the deflection arm 752 of the adhesive removal assembly 7 are coaxially distributed, the rotation of the eccentric wheel 76 will synchronously drive the deflection arm 752 to rotate. The slide rail slider 753 in its groove slides along the length of the groove. At the same time, the pin 754 on the slide rail slider 753 is limited by the triangular groove on the triangular slide rail 751 and moves along the trajectory of the triangular groove. The sliding of the pin 754 and the movement of the slide rail slider 753 together drive the vertical rod 73 to move. Since the three vertices of the triangular groove of the triangular slide rail 751 correspond to the "initial position, upper cleaning position, and lower cleaning position" of the adhesive removal block 74, during the movement of the pin 754 along the groove, the vertical rod 73 drives the adhesive removal block 74 to form a triangular movement trajectory of "up and down lifting + left and right translation", so that the adhesive removal block 74 can fully cover the adhesive discharge port 63 and complete the multi-position cleaning of the adhesive discharge port 63.

[0056] Reference Figure 7The excitation assembly 8 includes a support seat 81 disposed on the inner wall of the main body 1, a guide slide 82 disposed in a groove on the support seat 81, an excitation block 83 disposed on the side of the guide slide 82 away from the support seat 81, an instantaneous unit 84 disposed on the side of the guide slide 82 away from the support seat 81, a spring 85 disposed between the instantaneous unit 84 and the excitation block 83, and a trigger unit 86 located above the instantaneous unit 84. The support seat 81 is fixed to the inner wall of the main body 1 by bolts. The guide slide 82 can slide back and forth on the support seat 81 in its horizontal direction. The excitation block 83 and the guide slide 82 are integrally formed. The guide slide 82 is driven to slide by the power of the main drive assembly 9 and cooperates with the trigger unit 86 to realize the action triggering. The instantaneous unit 84 is the core of the "power release" of the excitation assembly 8. Under the control of the trigger unit 86, it can instantly provide power to the cleaning assembly 7 and realize the power storage process through the compression of the spring 85.

[0057] Specifically, when the main drive assembly 9 provides power, it drives the excitation block 83, which is integrally formed with the guide slide 82, to move. This causes the guide slide 82 to slide back and forth horizontally in the groove of the support seat 81. During the sliding process, the excitation block 83 cooperates with the trigger unit 86. At the same time, under the control of the trigger unit 86, the instantaneous unit 84 provides power to the adhesive removal assembly 7 instantly. Meanwhile, the spring 85 is compressed between the instantaneous unit 84 and the excitation block 83 to realize the power storage process.

[0058] Reference Figure 6 The instantaneous unit 84 includes an instantaneous seat 841 disposed in a groove in the guide slide 82, a guide slide rod 842 disposed at one end of the instantaneous seat 841 near the excitation block 83, and an instantaneous locking block 843 disposed on the side of the instantaneous seat 841 away from the guide slide 82. The end of the guide slide rod 842 away from the instantaneous seat 841 passes through the excitation block 83. A spring 85 is sleeved on the guide slide rod 842, and both ends are fixedly connected to the instantaneous seat 841 and the vertical rod 73, respectively. The instantaneous seat 841 can slide back and forth in the groove in the guide slide 82 and realize the lateral sliding of "lock-release". One end of the guide slide rod 842 passes through the guide hole of the excitation block 83 to provide guidance for the sliding of the instantaneous seat 841 and avoid deviation. The instantaneous locking block 843 locks the instantaneous seat 841 by engaging and releases the power by disengaging.

[0059] Specifically, the guide slide 82 slides horizontally back and forth in the groove of the bearing seat 81. At this time, the instantaneous seat 841 slides laterally back and forth along the groove with a "lock-release" function. When the spring 85 is not compressed, the instantaneous seat 841 remains relatively stationary with the excitation block 83 when the position changes. As the guide slide 82 moves further, the instantaneous locking block 843 engages with the trigger unit 86, and the position of the instantaneous seat 841 no longer moves. As the excitation block 83 and the instantaneous seat 841 continue to approach each other, the spring 85 is compressed, providing energy for the subsequent sliding of the instantaneous seat 841.

[0060] Reference Figure 7 The trigger unit 86 includes a trigger rod 861 disposed above the instantaneous base 841, a trigger locking block 862 disposed on the side of the trigger rod 861 near the instantaneous base 841, and a reset rotating shaft 863 disposed on the end of the trigger rod 861 away from the instantaneous locking block 843. The trigger locking block 862 is adapted to the instantaneous locking block 843. The end of the trigger rod 861 away from the reset rotating shaft 863 has an inclined surface adapted to the excitation block 83. The trigger rod 861 is rotatably connected to the inner wall of the main body 1 through the reset rotating shaft 863. The trigger rod 861 can rotate around the reset rotating shaft 863 at a certain angle. When the excitation block 83 slides, the inclined surface presses the trigger rod 861, causing the trigger rod 861 to rotate around the reset rotating shaft 863. The trigger locking block 862 is fixed in the middle of the trigger rod 861 and is a one-way locking structure with the instantaneous locking block 843.

[0061] Specifically, when the trigger rod 861 is in the initial position, the trigger block 862 and the instantaneous block 843 engage in one direction, locking the instantaneous seat 841. When the excitation block 83 continues to slide, the inclined surface presses the trigger rod 861, causing the trigger rod 861 to rotate upward around the reset shaft 863. At this point, the trigger block 862 separates from the instantaneous block 843, releasing the instantaneous seat 841 and achieving instantaneous power activation. As the spring 85 extends, the instantaneous seat 841 returns to a state of relative stillness with the excitation block 83. When the guide slide 82 is in the reset process due to reciprocating force, the trigger rod 861 falls back onto the instantaneous block 843. The trigger block 862 then transitions to the other side along the inclined surface of the instantaneous block 843, so that the reset of the guide slide 82 and the instantaneous seat 841 are synchronized to complete the reset state.

[0062] During use, the main drive assembly 9 provides power, which first drives the guide slide 82 and the excitation block 83 integrally formed with it to slide horizontally back and forth in the groove of the support seat 81. During the sliding process, the instantaneous seat 841 of the instantaneous unit 84 moves with the guide slide 82 and remains relatively stationary with the excitation block 83. After the instantaneous locking block 843 on the instantaneous seat 841 engages with the trigger locking block 862 of the trigger unit 86, the instantaneous seat 841 stops moving, and the excitation block 83 continues to approach, causing the spring 85 sleeved outside the guide slide 842 to compress and store force.

[0063] When the excitation block 83 slides to the inclined surface of the excitation trigger rod 861, the trigger rod 861 rotates around the reset shaft 863, the trigger block 862 separates from the instantaneous block 843, the instantaneous seat 841 releases power under the extension force of the spring 85 and returns to relative stillness with the excitation block 83, and at the same time the sliding driving force of the excitation component 8 is transmitted to the transmission rod 77 through the protruding shaft 78, causing the transmission rod 77 to swing back and forth in the horizontal direction;

[0064] Because the transmission rod 77 is hinged to the eccentric shaft of the eccentric wheel 76 through a joint bearing, its swing drives the eccentric wheel 76 to rotate around its own axis. Since the eccentric wheel 76 is coaxial with the deflection arm 752 of the cleaning assembly 7, it synchronously drives the deflection arm 752 to rotate, causing the slide rail slider 753 in the groove of the deflection arm 752 to slide along the length of the groove. The pin 754 on the slide rail slider 753 is limited by the triangular groove of the triangular slide rail 751 and moves along the groove trajectory. The two together drive the vertical rod 73 to move, thereby causing the cleaning block 74 at the lower end of the vertical rod 73 to form a triangular movement trajectory of "up and down lifting + left and right translation", which fully covers the glue discharge port 63 to complete the cleaning.

[0065] Finally, when the guide slide 82 is subjected to reciprocating force and enters the reset process, the trigger rod 861 falls back onto the instantaneous locking block 843, and the trigger locking block 862 transitions to the other side along the inclined surface of the instantaneous locking block 843, so as to realize the synchronous reset of the guide slide 82 and the instantaneous locking block 841, ensuring stable cleaning power and rapid response.

[0066] The remaining structure is the same as that in Example 1.

[0067] Example 3, referring to Figure 1-9 This is the third embodiment of the present invention. This embodiment differs from the second embodiment in that: the main drive assembly 9 includes a rubber roller motor 91 disposed on the side of the main body 1 near the control panel 5, a reciprocating unit 92 driven by the rubber roller motor 91, and a rubber roller differential 93 disposed between the rubber roller motor 91 and the coating roller 3. The rubber roller motor 91 is a servo motor, and its rotation speed can be precisely controlled by the panel according to the actual coating requirements to achieve the matching of coating speed and conveying speed. The reciprocating unit 92 can convert the rotational power of the rubber roller motor 91 into a composite power of "rotation + reciprocation". The rubber roller differential 93 can adjust the rotational speed of the rubber roller motor 91, thereby achieving coating and cleaning requirements at different frequencies.

[0068] Specifically, the control panel 5 sends a speed control command to the servo motor 91 of the rubber roller motor 91 to precisely adjust the speed of the rubber roller motor 91. The rubber roller motor 91 starts and outputs rotational power. A portion of the power is transmitted to the reciprocating unit 92, which converts the rotational power into a composite power of "rotation + reciprocation". The rotational power is transmitted to the rubber roller differential 93, which adjusts the speed of the transmitted rotational power to adapt to the needs of different frequency coating operations.

[0069] Reference Figure 5 and Figure 8 The reciprocating unit 92 includes motor pulleys 921 symmetrically arranged on the inner wall of the main body 1, glue roller pulleys 922 arranged at both ends of the glue coating roller 3, a pulley connecting rod 923 arranged between the motor pulleys 921 and the glue roller pulleys 922, and a reciprocating slide 924 arranged at the end of the pulley connecting rod 923 away from the motor pulleys 921 and the glue roller pulleys 922. The motor pulleys 921 are drivenly connected to the output shaft of the glue roller motor 91. The motor pulleys 921 and the pulley connecting rod 923 are hinged to the glue roller pulleys 922. The reciprocating slide 924 is located away from the motor. One end of the cam 921 and the rubber roller cam 922 is fixedly connected to the excitation block 83 and is provided with a clearance groove for avoiding the trigger rod 861. Both the motor cam 921 and the rubber roller cam 922 are eccentric cams. The difference is that the motor cam 921 is fixed on the output shaft of the rubber roller motor 91 and rotates synchronously with the motor. There are also two of them, but one set is rotatably connected to the machine body 1. The two rubber roller cams 922 are symmetrically fixed on the two ends of the coating roller 3 and rotate synchronously with the coating roller 3. They achieve coaxial transmission through the spherical bearing of the cam connecting rod 923.

[0070] Specifically, when the motor pulley 921 rotates, it drives the glue roller pulley 922 to rotate coaxially, thereby driving the glue coating roller 3 to rotate and realize the glue coating action. At the same time, the pulley connecting rod 923 makes an eccentric movement through the joint bearing, and drives the reciprocating slide 924 connected by the hinge to make a reciprocating movement, so that the reciprocating slide 924 realizes the reciprocating driving force of the guide slide 82 through the excitation block 83.

[0071] During use, the speed of the rubber roller motor 91 is adjusted via the control panel 5. After the rubber roller motor 91 starts, it outputs rotational power. A portion of this power is transmitted to the reciprocating unit 92, which converts the rotational power into a composite power of "rotation + reciprocation". The rotational power is further transmitted to the rubber roller differential 93, which adjusts the speed of the rotational power. During the operation of the reciprocating unit 92, the motor pulley 921 rotates with the power, driving the rubber roller pulley 922 to rotate coaxially, thereby driving the coating roller 3 to rotate to achieve the coating action. At the same time, the pulley connecting rod 923 makes an eccentric movement through the spherical bearing, driving the reciprocating slide 924, which is hinged to it, to reciprocate. The reciprocating slide 924 then provides reciprocating driving force to the guide slide 82 through the excitation block 83.

[0072] The remaining structure is the same as that in Example 2.

[0073] Based on embodiments 1-3, the working principle of this invention is as follows: A protective film and suitable adhesive are added to the glue tank body 4. The conveying roller 2 provides tension to the protective film and drives it to be conveyed from the inlet to the outlet. The rotational speed of the glue roller motor 91 in the main drive assembly 9 is adjusted via the control panel 5. After starting, the glue roller motor 91 outputs rotational power. Part of the power from the glue roller motor 91 is transmitted to the reciprocating unit 92, and the other part of the rotational power is transmitted to the glue roller differential 93. The glue roller differential 93 adjusts the rotational speed to match the glue application frequency requirements. The reciprocating unit 92 converts the rotational power into a "rotation + reciprocation" composite power, wherein the motor suddenly... The rotation of wheel 921 drives the coaxial rotation of the glue roller 922, which in turn drives the glue coating roller 3 to rotate. The glue released by the glue box body 4 is applied to the protective film by the rotation of the glue coating roller 3. The height of the pressure roller 65 is adjusted vertically by the cylinder to change the gap with the glue coating roller 3 and precisely control the glue coating thickness of the protective film. The horizontal tension roller 643 on the bonding seat 641 works with the pressure roller 65 to maintain the horizontal tension of the protective film. The bonding seat 641 changes the conveying direction of the protective film from horizontal to vertical. The glue scraping tension roller 642 holds the protective film. The glue scraping box 61 scrapes off the excess glue on the protective film and prevents the scraped glue from dripping back due to gravity.

[0074] Meanwhile, the cam connecting rod 923 in the reciprocating unit 92 makes an eccentric motion through the spherical bearing, which drives the reciprocating slide 924 to reciprocate. The reciprocating slide 924 drives the guide slide 82 to slide horizontally back and forth in the groove of the bearing seat 81 through the excitation block 83. In the initial stage of the guide slide 82 sliding, the instantaneous seat 841 of the instantaneous unit 84 moves with it and is relatively stationary with the excitation block 83. After the instantaneous locking block 843 engages with the trigger locking block 862 of the trigger unit 86, the instantaneous seat 841 stops moving, and the excitation block 83 continues to approach, causing the spring 85 to compress and store force.

[0075] When the excitation block 83 slides to the inclined surface of the extrusion trigger rod 861, the trigger rod 861 rotates around the reset shaft 863, the trigger block 862 separates from the instantaneous block 843, and the instantaneous seat 841 releases power under the extension force of the spring 85 and returns to relative stillness with the excitation block 83. The sliding driving force of the excitation component 8 is transmitted to the transmission rod 77 through the protruding shaft 78, which drives the transmission rod 77 to swing horizontally back and forth. The transmission rod 77 drives the eccentric wheel 76 to rotate around its own axis through the spherical bearing. The eccentric wheel 76 synchronously drives the coaxial deflection arm 752 to rotate, completing the "power storage-instantaneous release" power control, ensuring stable and rapid response of the glue removal power.

[0076] When the deflection arm 752 rotates, the slide rail slider 753 in its groove slides along the groove, and the pin 754 on the slide rail slider 753 moves along the triangular groove of the triangular slide rail 751, which together drive the vertical rod 73 to move. The vertical rod 73 drives the cleaning block 74 to form a triangular movement trajectory of "up and down lifting + left and right translation", which thoroughly cleans the residual glue in the glue discharge port 63 and completes the collection and utilization of residual glue.

[0077] When the guide slide 82 enters the reset process under the reciprocating force of the reciprocating unit 92, the trigger rod 861 falls back onto the instantaneous locking block 843, and the trigger locking block 862 transitions to the other side along the inclined surface of the instantaneous locking block 843. The guide slide 82 and the instantaneous locking block 841 reset synchronously, and all components return to their initial state, preparing for the next round of "adhesive application-residual adhesive treatment" cycle, ensuring that the equipment can operate continuously and stably.

[0078] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automated protective film laminating and adhesive coating machine, comprising: Main body of the fuselage (1); Conveyor rollers (2) are rotatably connected to both sides of the main body (1); The glue-applying roller (3) is located inside the main body (1); The glue collection component is located inside the main body (1) and below the glue coating roller (3). The glue collection component is used to scrape and collect the residual glue on the protective film. The drive unit is mounted on the main body (1). The drive unit provides power to the scraping assembly (6) and the coating roller (3) through the excitation assembly (8) and the main drive assembly (9), respectively. The glue box body (4) is positioned above the glue coating roller (3); The control panel (5), located on the main body (1), is characterized by: The glue collection component consists of a scraper assembly (6) and a glue removal assembly (7). The scraper assembly (6) includes a scraper box (61) located on the side of the machine body (1) away from the glue coating roller (3), a guide plate (62) located on the inner wall of the scraper box (61), glue discharge ports (63) symmetrically distributed at both ends of the scraper box (61) and connected to the inside of the scraper box (61), and a bonding unit (64) located between the glue coating roller (3) and the scraper box (61). The bonding unit (64) includes a bonding seat (641) disposed between the coating roller (3) and the scraper box (61). The bonding seat (641) is provided with a scraper tension roller (642) and a horizontal tension roller (643) that are distributed parallel to the axial direction of the coating roller (3). The scraper tension roller (642) and the horizontal tension roller (643) are rotatably connected to the vertical end of the bonding seat (641). The scraper tension roller (642) is located between the bonding seat (641) and the scraper box (61). The main body (1) is also provided with a pressure roller (65). The pressure roller (65) is rotatably connected below the coating roller (3) and is distributed parallel to the axial direction of the coating roller (3). A coating area for controlling the coating thickness is also provided between the pressure roller (65) and the coating roller (3).

2. The automated protective film laminating and gluing machine according to claim 1, characterized in that: The adhesive removal assembly (7) includes a guide rail body (71) fixedly installed on both ends of the adhesive scraper box (61), a guide rail slider (72) slidably connected to the guide rail body (71), a vertical rod (73) slidably connected to the guide rail body (71), an adhesive removal block (74) provided on one end of the vertical rod (73) extending into the adhesive scraper box (61), and a guide unit (75) provided on the other end of the vertical rod (73) away from the adhesive removal block (74). The vertical rod (73) is vertically distributed on the adhesive scraper box (61), and the adhesive removal block (74) has a notch on the side close to the adhesive scraper tension roller (642).

3. The automated protective film laminating and gluing machine according to claim 2, characterized in that: The guide unit (75) includes a triangular slide rail (751) disposed above the glue scraper box (61), a deflection arm (752) disposed on the side of the triangular slide rail (751) near the guide rail body (71), a slide rail slider (753) disposed in the groove of the deflection arm (752), and a pin (754) disposed on the slide rail slider (753). The slide rail slider (753) is hinged to the end of the vertical rod (73) away from the glue removal block (74) through the pin (754). A triangular groove for limiting the movement of the pin (754) is provided on the side of the triangular slide rail (751) near the deflection arm (752).

4. The automated protective film laminating and gluing machine according to claim 3, characterized in that: The adhesive removal assembly (7) further includes an eccentric wheel (76) disposed on the side of the triangular slide rail (751) away from the deflection arm (752), a transmission rod (77) disposed on the side of the eccentric wheel (76) away from the guide unit (75), and a protruding shaft (78) disposed on one end of the transmission rod (77) away from the eccentric wheel (76). The eccentric wheel (76) is coaxially distributed with the deflection arm (752). The transmission rod (77) is hinged to the eccentric shaft on the eccentric wheel (76). The transmission rod (77) is connected to the excitation assembly (8) through the protruding shaft (78).

5. The automated protective film laminating and gluing machine according to claim 1, characterized in that: The excitation assembly (8) includes a support seat (81) disposed on the inner wall of the main body (1), a guide slide (82) disposed in a groove on the support seat (81), an excitation block (83) disposed on the side of the guide slide (82) away from the support seat (81), an instantaneous unit (84) disposed on the side of the guide slide (82) away from the support seat (81), a spring (85) disposed between the instantaneous unit (84) and the excitation block (83), and a trigger unit (86) located above the instantaneous unit (84).

6. The automated protective film laminating and gluing machine according to claim 5, characterized in that: The instantaneous unit (84) includes an instantaneous seat (841) disposed in a groove in the guide slide (82), a guide slide rod (842) disposed at one end of the instantaneous seat (841) near the excitation block (83), and an instantaneous locking block (843) disposed on the side of the instantaneous seat (841) away from the guide slide (82). The end of the guide slide rod (842) away from the instantaneous seat (841) passes through the excitation block (83). The spring (85) is sleeved on the guide slide rod (842), and its two ends are fixedly connected to the instantaneous seat (841) and the vertical rod (73) respectively.

7. The automated protective film laminating and gluing machine according to claim 6, characterized in that: The triggering unit (86) includes a trigger rod (861) disposed above the instantaneous firing base (841), a trigger locking block (862) disposed on the side of the trigger rod (861) near the instantaneous firing base (841), and a trigger rod (861) disposed on the trigger rod (861). A reset shaft (863) is located at the end away from the instantaneous trigger block (843). The trigger block (862) is adapted to the instantaneous trigger block (843). The trigger rod (861) has an inclined surface adapted to the excitation block (83) at the end away from the reset shaft (863). The trigger rod (861) is rotatably connected to the inner wall of the main body (1) through the reset shaft (863).

8. The automated protective film laminating and gluing machine according to claim 1, characterized in that: The main drive assembly (9) includes a rubber roller motor (91) located on the side of the main body (1) near the control panel (5), a reciprocating unit (92) driven by the rubber roller motor (91), and a rubber roller differential (93) located between the rubber roller motor (91) and the coating roller (3).

9. The automated protective film laminating and coating machine according to claim 8, characterized in that: The reciprocating unit (92) includes a motor pulley (921) symmetrically arranged on the inner wall of the main body (1), a glue roller pulley (922) arranged at both ends of the glue coating roller (3), a pulley connecting rod (923) arranged between the motor pulley (921) and the glue roller pulley (922), and a reciprocating slide (924) arranged at the end of the pulley connecting rod (923) away from the motor pulley (921) and the glue roller pulley (922). The motor pulley (921) is connected to the output shaft of the glue roller motor (91). The motor pulley (921) and the pulley connecting rod (923) are hinged to the glue roller pulley (922). The end of the reciprocating slide (924) away from the motor pulley (921) and the glue roller pulley (922) is fixedly connected to the excitation block (83) and has a clearance groove for avoiding the trigger rod (861).

Images