Top coating gluing gram weight control device

Abstract

The invention discloses a top coating gluing gram weight control device which comprises a rack, a driving mechanism, a transverse moving mechanism, a lifting mechanism, a gluing mechanism, a thickness measuring mechanism and a feeding mechanism. A driving mechanism is transversely and fixedly welded to the top of the rack, a transverse moving mechanism is transversely and slidably installed on the front side of the driving mechanism, a lifting mechanism is arranged on the front side of the transverse moving mechanism, a gluing mechanism is arranged on the lifting mechanism, the thickness measuring mechanisms are arranged on the two sides of the gluing mechanism, and the feeding mechanism is arranged on the top of the rack and located on the rear side of the driving mechanism; the lifting mechanism comprises an air cylinder fixedly installed on the front side of the transverse moving mechanism, a lifting base is fixedly installed at the bottom of the air cylinder, the gluing mechanism comprises a support fixedly installed on the front side of the lifting base, and a gluing nozzle is vertically installed in the support in a penetrating mode. By integrating laser thickness measurement real-time monitoring, a servo calibration mechanism and a closed-loop control system, high-precision regulation and control of the glue coating gram weight can be realized, and the problems of large gram weight deviation and dynamic regulation lag caused by open-loop control of traditional equipment are solved.

Description

Technical Field

[0001] This invention relates to the field of adhesive coating equipment technology, and more particularly to a top-coating adhesive weight control device. Background Technology

[0002] Top-coating adhesive technology is widely used in fields such as electrode coating for new energy batteries, sealant application for automotive interiors, and electronic component packaging. Precise control of the adhesive weight directly affects product performance and production costs. Currently, traditional top-coating adhesive equipment faces the following main technical bottlenecks in practical applications:

[0003] Existing adhesive coating equipment mostly adopts an open-loop control mode, which supplies adhesive by manually presetting the opening of the flow valve or the pump with a fixed speed. It lacks real-time monitoring of the adhesive layer thickness. When there are undulations on the substrate surface, thickness fluctuations, or changes in the adhesive coating speed, it is impossible to dynamically adjust the amount of adhesive output, resulting in a high adhesive weight deviation. This can easily lead to adhesion defects caused by adhesive accumulation or sealing failure due to insufficient adhesive. Especially in the coating of electrode sheets for new energy batteries, uneven weight will directly affect the consistency of battery capacity. Traditional equipment can no longer meet the current industry's high-precision process requirements.

[0004] Although some equipment is equipped with thickness sensors, it lacks a standardized calibration mechanism. The vertical reference between the detection end face and the glue nozzle outlet is easily offset due to installation errors or equipment vibration. Traditional manual calibration methods have low accuracy and cannot adapt to the rapid switching requirements of multiple batches of different substrates, resulting in a large deviation between the thickness measurement data and the actual glue application amount. For example, when applying glue to curved surfaces of automotive interior parts, the problem of excessive local glue layer caused by reference deviation requires subsequent manual recoating or removal, which increases production costs.

[0005] Furthermore, the dispensing nozzle and thickness sensor are mostly fixedly installed, requiring complete disassembly for maintenance. This results in lengthy maintenance times, making it difficult to meet the needs of continuous production.

[0006] Therefore, how to provide a topcoat adhesive weight control device is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] One objective of this invention is to propose a top coating adhesive weight control device. This invention can achieve high-precision control of adhesive weight by integrating laser thickness measurement real-time monitoring, servo calibration mechanism and closed-loop control system, thus solving the problems of large weight deviation and lag in dynamic adjustment caused by open-loop control in traditional equipment.

[0008] The top coating adhesive weight control device according to an embodiment of the present invention includes a frame, a drive mechanism, a transverse movement mechanism, a lifting mechanism, an adhesive coating mechanism, a thickness measuring mechanism, and a feeding mechanism;

[0009] A drive mechanism is horizontally fixedly welded to the top of the frame. A transverse sliding mechanism is horizontally slidably installed on the front side of the drive mechanism. A lifting mechanism is provided on the front side of the transverse sliding mechanism. A glue applicator is provided on the lifting mechanism. The thickness measuring mechanism is located on both sides of the glue applicator. The feeding mechanism is located on the top of the frame and behind the drive mechanism.

[0010] The lifting mechanism includes a cylinder fixedly installed on the front side of the transverse mechanism, and a lifting seat is fixedly installed at the bottom of the cylinder. The glue application mechanism includes a support fixedly installed on the front side of the lifting seat, and a glue application nozzle is vertically installed through the support.

[0011] The thickness measuring mechanism includes movable frames symmetrically arranged on both sides of the support. A laser thickness gauge is vertically and detachably installed in the movable frame. Two sets of laser thickness gauges are symmetrically arranged on both sides of the glue applicator, and the laser thickness gauges and the glue applicator are located on the same axis.

[0012] The drive mechanism, lateral movement mechanism, lifting mechanism, glue application mechanism, thickness measurement mechanism, and feeding mechanism are all electrically connected to the control system. The control system is configured to adjust the glue output of the glue application nozzle based on the real-time detection data of the laser thickness gauge.

[0013] Furthermore, the outer walls on both sides of the support are also provided with a calibration mechanism that can drive the movable frame to move up and down. The calibration mechanism includes a boss fixedly installed on the outer walls on both sides of the support. A first lead screw is vertically installed in the center of the inner side of the boss. A servo motor for driving the first lead screw to rotate is installed in the center of the top of the boss. A first threaded hole is opened through the inside of the movable frame and near the support. The first lead screw passes through the first threaded hole and forms a transmission pair.

[0014] The calibration mechanism is configured to keep the detection end face of the laser thickness gauge and the discharge port of the dispensing nozzle at the same horizontal plane, and the servo motor is a closed-loop controlled stepper motor.

[0015] Furthermore, the drive mechanism includes a bracket horizontally fixedly installed on the top of the frame, a second lead screw is installed in the center of the front side inside the bracket, a drive motor is fixedly installed on the outer wall of one side of the bracket, the output shaft of the drive motor is connected to the second lead screw, and guide rods are symmetrically installed inside the bracket and on the upper and lower sides of the second lead screw.

[0016] Furthermore, the transverse movement mechanism includes a slider sleeved on a guide rod, with sliding holes through the upper and lower sides of the slider. The guide rod movably passes through the sliding holes, and a threaded hole sleeve is centrally installed inside the slider. The second lead screw passes through the threaded hole sleeve and forms a transmission pair. A movable plate is fixedly welded to the front side of the slider, and the cylinder is fixedly installed above the front side of the movable plate via a mounting bracket.

[0017] Furthermore, the feeding mechanism includes a bracket fixedly installed on the rear side of the top of the frame, a feeding pump is installed on the top of the bracket, a feed inlet with a valve is provided on the rear side of the feeding pump, a discharge outlet is provided at the bottom of the feeding pump, a one-way valve is installed on the discharge outlet, and a feeding hose is connected to the feed inlet.

[0018] Furthermore, a support rod is provided on the top of the frame and behind the drive mechanism. A spring tube for material conveying is wound around the support rod, and one end of the spring tube is connected to one end of the one-way valve outlet.

[0019] Furthermore, a flow solenoid valve is provided on the top of the dispensing nozzle, and a feeding hose is installed on the top of the flow solenoid valve. The top of the feeding hose is connected to the other end of the spring tube.

[0020] Furthermore, guide rods are symmetrically arranged inside the boss and on both sides of the lead screw, and guide holes are symmetrically opened inside the movable frame and on both sides of the threaded hole, with the guide rods movably passing through the guide holes.

[0021] Furthermore, the movable frame has a vertical through-hole for mounting, into which a laser thickness gauge is inserted and installed. The top of the laser thickness gauge is provided with a flange. The top of the movable frame and surrounding the mounting hole have several sets of mounting holes. Several sets of bolts are inserted around the flange. The laser thickness gauge can be fixedly installed in the movable frame by screwing the bolts in the flange to the mounting hole.

[0022] Furthermore, the lifting mechanism also includes limiting rods symmetrically installed on both sides of the front wall of the movable plate, and limiting holes are opened through both sides of the rear wall of the lifting seat, with the two sets of limiting rods passing through the limiting holes on both sides respectively.

[0023] The beneficial effects of this invention are:

[0024] 1. In this invention, laser thickness gauges symmetrically arranged on both sides of the dispensing nozzle monitor the thickness of the adhesive layer in real time and feed it back to the control system. The control system dynamically adjusts the opening of the flow solenoid valve according to the difference between the measured data and the preset parameters, realizing real-time compensation of the adhesive output. This greatly improves the accuracy of adhesive weight control and solves the weight deviation problem caused by the lag of manual adjustment in traditional equipment. Furthermore, through the linkage control of the drive mechanism, the transverse mechanism and the dispensing mechanism, combined with the real-time feedback of the thickness measuring mechanism, a closed-loop system from detection to adjustment to re-detection is formed. This system can adapt to the surface undulations of different substrates or changes in dispensing speed, ensuring uniformity of dispensing and avoiding adhesive accumulation or insufficient dispensing.

[0025] 2. In this invention, the calibration mechanisms on both sides of the support are driven by a servo motor to drive the first lead screw, which in turn drives the movable frame to move up and down. This ensures that the detection end face of the laser thickness gauge and the dispensing nozzle outlet are on the same horizontal plane, resulting in high calibration accuracy and eliminating thickness misjudgment caused by deviation of the detection benchmark. This is especially suitable for dispensing multiple batches of different substrates. The limiting rod and limiting hole in the lifting mechanism work together to ensure that there is no deviation during the lifting process of the dispensing nozzle. The guide rod and lead screw transmission pair of the transverse movement mechanism are manufactured with high precision to ensure smooth transverse movement, thereby making the dispensing trajectory uniform and avoiding striped dispensing defects.

[0026] 3. The one-way valve in the feeding mechanism of this invention prevents the backflow of adhesive, and the spring tube winding design reduces the fluctuation of conveying pressure. Combined with the constant pressure output of the feeding pump, it ensures a stable supply of adhesive during the coating process. It is especially suitable for the precise coating of high-viscosity adhesives. In addition, the laser thickness gauge can be detachably connected to the movable frame through the flange, and the coating nozzle and the feeding hose adopt a quick-installation structure, which greatly improves the equipment maintenance efficiency and reduces downtime maintenance costs. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the top coating adhesive weight control device proposed in this invention;

[0029] Figure 2 This is a bottom view of the top coating adhesive weight control device proposed in this invention.

[0030] Figure 3 This is a schematic diagram of the drive mechanism structure of the top coating adhesive weight control device proposed in this invention;

[0031] Figure 4 This is a schematic diagram of the transverse movement mechanism of the top coating adhesive weight control device proposed in this invention;

[0032] Figure 5 This is a schematic diagram of the lifting mechanism of the top coating adhesive weight control device proposed in this invention;

[0033] Figure 6 This is a schematic diagram of the coating mechanism of the top coating weight control device proposed in this invention;

[0034] Figure 7 This is a schematic diagram of the thickness measuring mechanism of the top coating adhesive weight control device proposed in this invention.

[0035] In the diagram: 1. Frame; 2. Drive mechanism; 21. Support; 22. Guide rod; 23. Drive motor; 24. Second lead screw; 3. Transverse mechanism; 31. Movable plate; 32. Slider; 33. Threaded hole sleeve; 34. Sliding hole; 4. Lifting mechanism; 41. Cylinder; 42. Lifting seat; 43. Limit rod; 44. Limit hole; 5. Glue application mechanism; 51. Support; 52. Glue application nozzle; 53. Flow solenoid valve; 54. Feeding soft... 6. Pipe; 6. Thickness measuring mechanism; 61. Movable frame; 62. Mounting hole; 63. Laser thickness gauge; 64. First threaded hole; 65. Guide hole; 66. Flange; 67. Mounting hole; 7. Feeding mechanism; 71. Bracket; 72. Feeding pump; 73. Discharge port; 74. Check valve; 75. Inlet; 76. Feed hose; 8. Calibration mechanism; 81. Boss; 82. Guide rod; 83. Servo motor; 84. First lead screw. Detailed Implementation

[0036] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0039] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Existing top-coating adhesive application equipment often suffers from low precision in adhesive weight control and insufficient real-time monitoring capabilities during the adhesive application process. This makes it difficult to dynamically adjust the adhesive application amount based on changes in the substrate, resulting in poor coating uniformity or adhesive waste. To address these issues, this invention provides a top-coating adhesive weight control device that integrates a thickness measuring mechanism with a closed-loop control system to achieve precise control of the adhesive weight.

[0042] like Figure 1-7 As shown, the apparatus provided in the exemplary embodiment of the present invention includes a frame 1, a drive mechanism 2, a transverse movement mechanism 3, a lifting mechanism 4, an adhesive application mechanism 5, a thickness measuring mechanism 6, and a feeding mechanism 7. The drive mechanism 2 is horizontally fixedly welded to the top of the frame 1. The transverse movement mechanism 3 is horizontally slidably mounted on the front side of the drive mechanism 2. The lifting mechanism 4 is arranged on the front side of the transverse movement mechanism 3. The adhesive application mechanism 5 is arranged on the lifting mechanism 4. The thickness measuring mechanism 6 is symmetrically arranged on both sides of the adhesive application mechanism 5. The feeding mechanism 7 is arranged on the top of the frame 1 and located behind the drive mechanism 2.

[0043] Specifically, the lifting mechanism 4 includes a cylinder 41 fixedly installed on the front side of the transverse mechanism 3, and a lifting seat 42 fixedly installed on the bottom of the cylinder 41. The glue application mechanism 5 includes a support 51 fixedly installed on the front side of the lifting seat 42, a glue application nozzle 52 vertically installed inside the support 51, a flow solenoid valve 53 is provided on the top of the glue application nozzle 52, and the flow solenoid valve 53 is connected to the feeding mechanism 7 through a feeding hose 54.

[0044] The thickness measuring mechanism 6 includes movable frames 61 symmetrically arranged on both sides of the support 51. Laser thickness gauges 63 are vertically mounted inside the movable frames 61. Two sets of laser thickness gauges 63 are symmetrically arranged on both sides of the dispensing nozzle 52 and coaxial with the nozzle 52. Mounting holes 62 are provided inside the movable frames 61. The laser thickness gauges 63 are screwed into the mounting holes 67 via flanges 66 for easy disassembly and maintenance.

[0045] The drive mechanism 2 includes a bracket 21 horizontally fixed to the top of the frame 1. A second lead screw 24 is installed on the front side inside the bracket 21, and a drive motor 23 is fixed on one outer wall. The output shaft of the drive motor 23 is connected to the second lead screw 24 for transmission. Guide rods 22 are symmetrically installed on the upper and lower sides inside the bracket 21. The transverse mechanism 3 includes a slider 32 sleeved on the guide rod 22. A threaded hole sleeve 33 is installed inside the slider 32 to form a transmission pair with the second lead screw 24. A movable plate 31 is fixedly welded to the front side, and a cylinder 41 is fixed to the upper front side of the movable plate 31 by a mounting bracket. The lifting mechanism 4 also includes limiting rods 43 symmetrically installed on the front wall of the movable plate 31. A limiting hole 44 is opened on the rear wall of the lifting seat 42, and the limiting rods 43 pass through the limiting hole 44 to ensure lifting stability.

[0046] The feeding mechanism 7 includes a bracket 71 fixed to the rear top of the frame 1. A feeding pump 72 is mounted on the top of the bracket 71. The feeding pump 72 has an inlet 75 with a valve on its rear side and an outlet 73 at its bottom. A one-way valve 74 is installed at the outlet 73. The inlet 75 is connected to a feeding hose 76. A support rod is also provided on the top of the frame 1, around which a feeding spring tube is wound. One end of the spring tube is connected to the one-way valve 74, and the other end is connected to the flow solenoid valve 53 on the top of the glue applicator 52 through the feeding hose 54, forming a glue conveying path.

[0047] Furthermore, calibration mechanisms 8 are provided on the outer walls of both sides of the support 51 to drive the movable frame 61 to move up and down, ensuring that the detection end face of the laser thickness gauge 63 is at the same horizontal plane as the discharge port of the dispensing nozzle 52. The calibration mechanism 8 includes bosses 81 fixed to both sides of the support 51. A first lead screw 84 is vertically mounted inside the bosses 81, and a servo motor 83 is mounted on top to drive the first lead screw 84 to rotate. A first threaded hole 64 is formed in the movable frame 61 to form a transmission pair with the first lead screw 84. Guide rods 82 are symmetrically arranged on both sides of the lead screw 84 inside the bosses 81, and guide holes 65 are formed in the movable frame 61 for the guide rods 82 to pass through, ensuring smooth lifting and lowering of the movable frame 61. The servo motor 83 is a closed-loop controlled stepper motor to ensure calibration accuracy.

[0048] The drive mechanism 2, lateral movement mechanism 3, lifting mechanism 4, glue application mechanism 5, thickness measuring mechanism 6, and feeding mechanism 7 are all electrically connected to the control system. During operation, the feeding pump 72 draws in adhesive through the feed hose 76, and delivers it to the glue application nozzle 52 via the spring tube and feed hose 54. The flow solenoid valve 53 controls the adhesive output. The drive motor 23 drives the second lead screw 24 to rotate, which in turn drives the glue application mechanism 5 to move laterally via the lateral movement mechanism 3. The cylinder 41 controls the lifting and lowering of the glue application nozzle 52 to adjust the glue application height.

[0049] When the dispensing nozzle 52 applies adhesive to the substrate, the laser thickness gauges 63 on both sides detect the thickness of the adhesive layer in real time and feed the data back to the control system. Based on the difference between the preset weight parameters and the measured data, the control system automatically adjusts the opening of the flow solenoid valve 53, dynamically adjusting the adhesive output to achieve closed-loop control of the adhesive weight. The calibration mechanism 8 can be driven by the servo motor 83 to raise and lower the movable frame 61 before equipment startup or when changing the substrate, ensuring that the two sets of laser thickness gauges 63 maintain the same horizontal plane and guarantee the consistency of the detection benchmark.

[0050] In one feasible approach, when applying adhesive to substrates of varying thicknesses, the vertical position of the laser thickness gauge 63 can be adjusted via the calibration mechanism 8 to match the vertical distance between its detection end face and the outlet of the adhesive nozzle 52 with the substrate thickness, thus avoiding detection errors caused by reference deviations. Simultaneously, the transverse movement mechanism 3 can drive the adhesive application mechanism 5 to move laterally along the guide rod 22, achieving uniform adhesive application to wide substrates. The cylinder 41 adjusts the height of the adhesive nozzle 52 according to the substrate thickness, ensuring the stability of the adhesive application distance.

[0051] The one-way valve 74 in the feeding mechanism 7 prevents backflow of the adhesive, and the winding design of the spring tube reduces pressure fluctuations during adhesive delivery, ensuring stable adhesive supply. The real-time linkage between the flow solenoid valve 53 and the laser thickness gauge 63 enables the control system to adjust the output in real time according to changes in the adhesive weight, avoiding quality problems caused by adhesive accumulation or insufficiency.

[0052] Working principle: First, the feeding mechanism 7 delivers the adhesive from the feeding pump 72 through the feeding hose 76, via the check valve 74, spring tube, and feeding hose 54 to the applicator nozzle 52. The flow solenoid valve 53 controls the adhesive output. The drive motor 23 of the drive mechanism 2 drives the second lead screw 24 to rotate. Through the threaded hole sleeve 33 of the transverse mechanism 3, which cooperates with the slider 32, the movable plate 31 drives the lifting mechanism 4 to move laterally along the guide rod 22. The cylinder 41 of the lifting mechanism 4 pushes the lifting seat 42 up and down along the limit rod 43 to adjust the height of the applicator nozzle 52. The applicator nozzle 52 performs adhesive application on the substrate and simultaneously measures the thickness. The laser thickness gauges 63, symmetrically arranged on both sides of the dispensing nozzle 52, detect the thickness of the adhesive layer in real time and transmit the data to the control system. The control system automatically adjusts the opening of the flow solenoid valve 53 according to the difference between the preset weight parameter and the measured data to dynamically adjust the adhesive output, forming a closed-loop control. The servo motor 83 of the calibration mechanism 8 drives the first lead screw 84 to rotate, which drives the movable frame 61 to move up and down along the guide rod 82 through the threaded pair, so that the detection end faces of the two sets of laser thickness gauges 63 can be kept on the same horizontal plane, ensuring the consistency of the detection benchmark, thereby achieving precise control of the adhesive weight.

[0053] In summary, this invention achieves precise control of the top coating weight by integrating thickness measurement, calibration, and closed-loop control functions, solving the problems of poor coating uniformity and rough weight control in the prior art, and improving coating quality and production efficiency.

[0054] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0055] The above description is merely a specific embodiment of the present invention. Obviously, various modifications and combinations can be made without departing from the spirit and scope of the present invention. Accordingly, this specification and accompanying drawings are merely exemplary descriptions of the invention as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and variations of the present invention fall within the scope of the claims and their equivalents, the intent of the present invention includes these modifications and variations. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A top coating adhesive weight control device, characterized in that, It includes a frame (1), a drive mechanism (2), a transverse movement mechanism (3), a lifting mechanism (4), a glue application mechanism (5), a thickness measuring mechanism (6), and a feeding mechanism (7); A drive mechanism (2) is horizontally fixedly welded to the top of the frame (1). A transverse movement mechanism (3) is horizontally slidably installed on the front side of the drive mechanism (2). A lifting mechanism (4) is provided on the front side of the transverse movement mechanism (3). A glue application mechanism (5) is provided on the lifting mechanism (4). A thickness measuring mechanism (6) is provided on both sides of the glue application mechanism (5). A feeding mechanism (7) is provided on the top of the frame (1) and located behind the drive mechanism (2). The lifting mechanism (4) includes a cylinder (41) fixedly installed on the front side of the transverse mechanism (3), and a lifting seat (42) fixedly installed at the bottom of the cylinder (41). The glue applicator (5) includes a support (51) fixedly installed on the front side of the lifting seat (42), and a glue applicator nozzle (52) is vertically installed inside the support (51). The thickness measuring mechanism (6) includes movable frames (61) symmetrically arranged on both sides of the support (51). A laser thickness gauge (63) is vertically and detachably installed in the movable frame (61), and two sets of laser thickness gauges (63) are symmetrically arranged on both sides of the glue applicator (52), and the laser thickness gauge (63) and the glue applicator (52) are located on the same axis. The drive mechanism (2), lateral movement mechanism (3), lifting mechanism (4), glue application mechanism (5), thickness measurement mechanism (6) and feeding mechanism (7) are all electrically connected to the control system. The control system is configured to adjust the glue output of the glue application nozzle (52) according to the real-time detection data of the laser thickness gauge (63).

2. The top coating adhesive weight control device according to claim 1, characterized in that, The outer walls on both sides of the support (51) are also provided with a calibration mechanism (8) that can drive the movable frame (61) to move up and down. The calibration mechanism (8) includes a boss (81) fixedly installed on the outer walls on both sides of the support (51). A first lead screw (84) is vertically installed in the center of the inner side of the boss (81). A servo motor (83) for driving the first lead screw (84) to rotate is installed in the center of the top of the boss (81). A first threaded hole (64) is opened through the interior of the movable frame (61) and near the support (51). The first lead screw (84) passes through the first threaded hole (64) and forms a transmission pair. The calibration mechanism (8) is configured to keep the detection end face of the laser thickness gauge (63) and the discharge port of the glue applicator (52) at the same level. The servo motor (83) is a closed-loop controlled stepper motor.

3. The top coating adhesive weight control device according to claim 1, characterized in that, The drive mechanism (2) includes a bracket (21) that is horizontally fixedly installed on the top of the frame (1). A second lead screw (24) is installed in the center of the front side inside the bracket (21). A drive motor (23) is fixedly installed on the outer wall of one side of the bracket (21). The output shaft of the drive motor (23) is connected to the second lead screw (24) for transmission. Guide rods (22) are symmetrically installed inside the bracket (21) and on the upper and lower sides of the second lead screw (24).

4. The top coating adhesive weight control device according to claim 3, characterized in that, The transverse mechanism (3) includes a slider (32) sleeved on a guide rod (22). The slider (32) has sliding holes (34) through both its upper and lower sides. The guide rod (22) passes through the sliding holes (34). A threaded hole sleeve (33) is installed in the center of the slider (32). The second lead screw (24) passes through the threaded hole sleeve (33) and forms a transmission pair. A movable plate (31) is fixedly welded to the front side of the slider (32). The cylinder (41) is fixedly installed above the front side of the movable plate (31) by a mounting bracket.

5. The top coating adhesive weight control device according to claim 1, characterized in that, The feeding mechanism (7) includes a bracket (71) fixedly installed on the rear side of the top of the frame (1). A feeding pump (72) is installed on the top of the bracket (71). A feed inlet (75) with a valve is provided on the rear side of the feeding pump (72). A discharge outlet (73) is provided at the bottom of the feeding pump (72). A one-way valve (74) is installed on the discharge outlet (73). A feed hose (76) is connected to the feed inlet (75).

6. The top coating adhesive weight control device according to claim 5, characterized in that, A support rod (6) is also provided on the top of the frame (1) and behind the drive mechanism (2). A spring tube for conveying material is wound on the support rod (6), and one end of the spring tube is connected to the discharge port of the one-way valve (74).

7. The top coating adhesive weight control device according to claim 6, characterized in that, The top of the applicator nozzle (52) is provided with a flow solenoid valve (53), and the top of the flow solenoid valve (53) is equipped with a feeding hose (54), the top of which is connected to the other end of the spring tube.

8. The top coating adhesive weight control device according to claim 2, characterized in that, Guide rods (82) are symmetrically arranged inside the boss (81) and on both sides of the lead screw (84). Guide holes (65) are symmetrically opened inside the movable frame (61) and on both sides of the threaded hole (64). The guide rods (82) movably pass through the guide holes (65).

9. The top coating adhesive weight control device according to claim 5, characterized in that, The movable frame (61) has a vertical through-hole (62) inside, into which a laser thickness gauge (63) is inserted and installed. The top of the laser thickness gauge (63) is provided with a flange (66). The top of the movable frame (61) and the mounting hole (62) are provided with several sets of mounting holes (67). Several sets of bolts are inserted around the flange (66). The laser thickness gauge (63) can be fixedly installed in the movable frame (61) by screwing the bolts in the flange (66) into the mounting holes (67).

10. The top coating adhesive weight control device according to claim 4, characterized in that, The lifting mechanism (4) also includes limiting rods (43) symmetrically installed on both sides of the front wall of the movable plate (31), and limiting holes (44) are opened through both sides of the rear wall of the lifting seat (42), with the two sets of limiting rods (43) passing through the limiting holes (44) on both sides respectively.

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