A surface sizing machine with uniform sizing

Abstract

This invention discloses a surface adhesive applicator for uniform adhesive application, applicable to the field of adhesive applicator technology. It includes a frame, a width limiting mechanism, a conveying mechanism, a dust removal mechanism, an adhesive application mechanism, a detection mechanism, and operation buttons. The width limiting mechanism, conveying mechanism, and operation buttons are all located on the top of the frame. The dust removal mechanism, adhesive application mechanism, and detection mechanism are all located on the conveying mechanism. The width limiting mechanism, dust removal mechanism, and adhesive application mechanism are arranged sequentially along the conveying direction of the substrate. The adhesive application mechanism includes an adhesive flow trough, an adhesive leveling component, an adhesive application component, and an adhesive return component. The top of the adhesive flow trough has a through groove, and the bottom of the adhesive flow trough has an adhesive outlet. The adhesive application component includes two sets of fixed blocks, two sets of cylinders, two sets of sliding blocks, a glue roller, a motor, an adhesive application plate, and a motor. This invention can improve the uniformity and stability of adhesive distribution, significantly reduce the risk of clogging, and simplify the maintenance process.

Description

Technical Field

[0001] This invention relates to the field of adhesive applicator technology, specifically to a surface adhesive applicator that provides uniform adhesive application. Background Technology

[0002] Surface coating machines are key equipment in industries such as composite materials, engineered wood products, and packaging materials for continuous coating of flat substrates. Among them, inclined plate spray coating machines are widely used due to their ability to achieve continuous high-speed production. The standard operating mode of this equipment is as follows: the adhesive is pumped to the horizontal distributor at the top, and the adhesive flows naturally down through a precise slit under gravity. This slit is often called an inclined plate or lip, forming a continuous and stable curtain of adhesive. Subsequently, the horizontally conveyed substrate passes through this curtain, thus completing the single-sided coating.

[0003] Although this technology is widely used and enables continuous production, its adhesive uniformity is highly unstable. The quality of the curtain depends entirely on the instantaneous state of the adhesive and the geometric precision of the static gaps. Any slight fluctuation in the viscosity, temperature, or flow rate of the adhesive can directly lead to uneven curtain thickness, vibration, or even localized breakage, causing transverse streaks in the substrate coating that are difficult to eliminate. Simultaneously, processing errors, wear, or minor blockages in the fixed inclined plate can directly cause inconsistent adhesive dispensing along the width direction, resulting in longitudinal streaks. Deviations in substrate flatness or speed fluctuations during the conveying process are also directly replicated on the coating, severely restricting the quality of continuous production.

[0004] Therefore, it is necessary to provide a surface adhesive applicator that can apply adhesive evenly to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a surface adhesive applicator that can improve the uniformity and stability of adhesive distribution, significantly reduce the risk of clogging, and simplify the maintenance process, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a surface adhesive applicator with uniform adhesive application, comprising a frame, a width limiting mechanism, a conveying mechanism, a dust removal mechanism, an adhesive application mechanism, a detection mechanism, and an operation button. The width limiting mechanism, the conveying mechanism, and the operation button are all located on the top of the frame. The dust removal mechanism, the adhesive application mechanism, and the detection mechanism are all located on the conveying mechanism. The width limiting mechanism, the dust removal mechanism, and the adhesive application mechanism are arranged sequentially along the conveying direction of the substrate.

[0007] The glue application mechanism includes a glue flow trough, a glue leveling component, a glue application component, and a glue return component. The top of the glue flow trough is provided with a through groove, and the bottom of the glue flow trough is provided with a glue outlet.

[0008] The glue application assembly includes two sets of fixed blocks, two sets of cylinders, two sets of sliding blocks, a glue roller, a motor, a glue dispensing plate, and a motor. The fixed blocks are provided with sliding grooves, and the sliding blocks are disposed in the sliding grooves and slidably connected to the fixed blocks. The output ends of the two sets of cylinders pass through the fixed blocks and are fixedly connected to the two sets of sliding blocks respectively. The two ends of the glue roller are respectively disposed on the two sets of sliding blocks, and the glue roller is connected to the sliding blocks by bearings. The top of the glue roller is located in the glue dispensing port, and the output end of the motor is fixedly connected to the glue roller.

[0009] According to the above technical solution, the width limiting mechanism includes a handwheel, a bidirectional lead screw, two sets of width limiting plates, and two sets of limiting wheels. The handwheel is fixedly connected to the bidirectional lead screw, and the bidirectional lead screw is bearing-connected to the top of the frame. The handwheel is located on the outside of the frame. Two sets of guide columns fixedly connected to the frame are provided on both sides of the bidirectional lead screw. The width limiting plates are drivenly connected to the bidirectional lead screw, and the width limiting plates are slidably connected to the guide columns. The two sets of limiting wheels are respectively located on the side of the two sets of width limiting plates that are close to each other, and the limiting wheels are bearing-connected to the width limiting plates.

[0010] According to the above technical solution, the conveying mechanism includes a motor, two sets of bearing frames, two sets of bearing frames, and a conveying roller. The motor is fixed at the bottom of the frame, and the bearing frames are fixed at the top of the frame. The two sets of bearing frames are located away from the width limiting mechanism, and the two sets of bearing frames are located close to the width limiting mechanism.

[0011] Both bearing frame one and bearing frame two are provided with sliding bearing seats and fixed bearing seats. The sliding bearing seats are located above the fixed bearing seats and are slidably connected to bearing frame one and bearing frame two. A conveyor roller one is provided on the fixed bearing seats in bearing frame one and bearing frame two. The conveyor roller one is connected to the fixed bearing seats. The motor one is connected to the conveyor roller one through a sprocket.

[0012] The second bearing frame is provided with a second conveyor roller on the sliding bearing seat. The second conveyor roller is connected to the bearing of the sliding bearing seat. The top of both the first bearing frame and the second bearing frame is connected to a second handwheel. The second handwheel is connected to the bearing of the sliding bearing seat. The glue application mechanism is provided on the sliding bearing seats of the two sets of the first bearing frames.

[0013] According to the above technical solution, the dust removal mechanism includes a support roller, two sets of cylinders, a dust removal box, two sets of cleaning brushes and a motor. Support blocks 1 and 2 are fixedly connected to the sides of the two sets of bearing frames. The support blocks 1 are located between the bearing frames 1 and the bearing frames 2. The two ends of the support roller are set on the two sets of support blocks 1. The support roller is connected to the support blocks 1 by bearings.

[0014] The two sets of cylinders are respectively fixed on the top of the two sets of support blocks. The output end of the cylinder passes through the support block and is fixedly connected to the dust collection box. The bottom of the dust collection box is provided with an adsorption port. The side pipe of the dust collection box is connected to an induced draft fan. A filter device is provided on the pipe connecting the dust collection box and the induced draft fan.

[0015] According to the above technical solution, a brush box is fixedly connected to the bottom of the dust collection box, and a receiving groove is provided on the brush box. Two sets of cleaning brushes are arranged in the receiving groove of the brush box. The cleaning brushes are connected to the brush box bearing. The two sets of cleaning brushes are located on both sides of the adsorption port. The second motor is fixed to the top of the dust collection box, and the output end of the second motor is connected to the two sets of cleaning brushes through a pulley.

[0016] According to the above technical solution, the two ends of the glue flow channel are respectively set on the sliding bearing seats of the two sets of bearing brackets. One end of the glue flow channel is provided with a glue inlet, which is connected to the glue inlet device. The other end of the glue flow channel is provided with a circulating glue inlet, which is connected to the glue inlet device.

[0017] According to the above technical solution, the glue-spreading assembly includes a third motor, a moving block, a fourth motor, a glue-spreading plate, and two sets of bellows covers. A third support block is fixedly connected to the top of the glue-spreading trough. The third motor is fixed on the third support block. Two sets of rotating wheels are connected to the top bearing of the glue-spreading trough. The output end of the third motor is fixedly connected to one of the rotating wheels. The two sets of rotating wheels are connected by a synchronous belt drive. The moving block is located above the through groove and is fixed to the side of the synchronous belt. The fourth motor is fixed to the top of the moving block. The output end of the fourth motor is located inside the through groove and is fixedly connected to the glue-spreading plate. The glue-spreading plate is located inside the glue-spreading trough.

[0018] The accordion cover is located above the through groove. Two sets of accordion covers are arranged on both sides of the moving block. The ends of the two sets of accordion covers that are close to each other are connected to the moving block, and the ends of the two sets of accordion covers that are far apart from each other are fixedly connected to the glue flow groove.

[0019] According to the above technical solution, the two sets of fixing blocks are respectively fixed on the bottom sides of the glue flow channel, the two sets of cylinders are fixed on the top sides of the glue flow channel, and the motor is fixed on the side of a set of sliding blocks away from the glue roller.

[0020] The top of the glue-dispensing plate is connected to two sets of fixed block bearings, the bottom of the glue-dispensing plate is slidably connected to the fixed blocks, the motor six is ​​fixed to the side of a set of fixed blocks through a connecting seat, and the output end of the motor six is ​​connected to the bottom gear of the glue-dispensing plate via a transmission.

[0021] According to the above technical solution, the glue return assembly includes a support plate, a glue collection tank, several cylinders, and several glue return ports. The support plate is fixed between two sets of fixing blocks and is located at the bottom of the fixing blocks. Several cylinders are fixed at equal intervals on the top of the support plate. The output end of each cylinder is fixedly connected to the glue collection tank. The glue collection tank is slidably connected to the two sets of fixing blocks. The glue collection tank is inclined and located below the glue roller. Several glue return ports are equidistantly located on the side of the glue collection tank near the cylinders. Each glue return port is connected to a glue recovery device.

[0022] According to the above technical solution, the detection mechanism includes a second support plate and a scanner. The second support plate is fixed between two sets of bearing frames and is located on the side of the adhesive application mechanism away from the bearing frames. The scanner is fixed at the bottom of the second support plate and is used to scan the surface of the substrate after adhesive application to obtain the adhesive application image. The scanner is connected to a recognition and analysis system. The recognition and analysis system is used to extract the adhesive application protrusions, adhesive gaps, and edge adhesive straightness on the substrate surface based on the obtained adhesive application image to determine the uniformity of adhesive application.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting a dust removal mechanism, can use an integrated dust removal box containing a rotating cleaning brush and a negative pressure adsorption port to sweep up the dust on the surface of the substrate, and extract and filter it through the adsorption port, which can effectively remove surface dust before the substrate enters the adhesive application station.

[0024] By incorporating an adhesive application mechanism, the glue roller can be rotated at a uniform speed to receive the adhesive liquid, buffering upstream glue supply fluctuations and obtaining a stable adhesive film. This film is then precisely peeled off by the glue distribution plate to form an adhesive curtain of uniform thickness. This fundamentally solves the problem of uneven coating caused by traditional gravity flow, improving the surface uniformity of adhesive application. By utilizing the path of the adhesive liquid through the dispensing nozzle, roller, and distribution plate, the reliance on a single static slit is reduced. Combined with the online unblocking of the glue coating component, the risk of clogging and maintenance difficulty are significantly reduced. At the same time, the thickness of the adhesive curtain can be actively and precisely controlled by adjusting the roller rotation speed, the gap and angle of the distribution plate, making process control more flexible and precise. Furthermore, by coordinating the adjustment of the roller rotation speed and adhesive flow rate, the curtain can be formed quickly and abnormal conditions can be recovered rapidly, reducing start-up and shutdown waste and improving production flexibility. Attached Figure Description

[0025] 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:

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2This is a rear view schematic diagram of the overall structure of the present invention;

[0028] Figure 3 This is a partial structural schematic diagram of the present invention;

[0029] Figure 4 This is a partial rear view schematic diagram of the structure of the present invention;

[0030] Figure 5 This is the invention Figure 3 Cross-sectional view;

[0031] Figure 6 This is the invention Figure 5 Enlarged structural diagram of region A in the middle;

[0032] Figure 7 This is the invention Figure 4 Enlarged structural diagram of region B in the middle;

[0033] Figure 8 This is a schematic diagram of the dust removal mechanism and the adhesive application mechanism of the present invention;

[0034] Figure 9 This is an exploded view of the adhesive application mechanism of the present invention;

[0035] Figure 10 This is the invention Figure 5 Enlarged structural diagram of region C in the middle;

[0036] In the diagram: 1. Frame; 2. Guide roller;

[0037] 3. Width limiting mechanism; 31. Handwheel 1; 32. Two-way lead screw; 33. Guide column; 34. Width limiting plate; 35. Limiting wheel;

[0038] 4. Conveying mechanism; 41. Motor 1; 42. Bearing bracket 1; 43. Bearing bracket 2; 44. Sliding bearing seat; 45. Conveying roller 1; 46. Conveying roller 2; 47. Handwheel 2;

[0039] 5. Dust removal mechanism; 51. Support block one; 52. Support roller; 53. Support block two; 54. Cylinder one; 55. Dust collection box; 551. Adsorption port; 56. Brush box; 57. Cleaning brush; 58. Motor two;

[0040] 6. Glue application mechanism; 61. Glue flow trough; 611. Through groove; 612. Glue outlet; 62. Glue spreading assembly; 621. Motor three; 622. Moving block; 623. Motor four; 624. Glue spreading plate; 625. Bellows cover; 63. Glue application assembly; 631. Fixing block; 632. Cylinder two; 633. Sliding block; 634. Glue roller; 635. Motor five; 636. Glue flow plate; 637. Motor six; 64. Glue return assembly; 641. Support plate one; 642. Glue collection trough; 643. Cylinder three; 644. Glue return outlet;

[0041] 7. Testing institution; 71. Support plate two; 72. Scanner;

[0042] 8. Operation buttons. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figure 1-10 This invention provides a technical solution: a surface adhesive applicator for uniform adhesive application, comprising a frame 1, a width limiting mechanism 3, a conveying mechanism 4, a dust removal mechanism 5, an adhesive application mechanism 6, a detection mechanism 7, and an operation button 8. The width limiting mechanism 3, the conveying mechanism 4, and the operation button 8 are all located on the top of the frame 1. The dust removal mechanism 5, the adhesive application mechanism 6, and the detection mechanism 7 are all located on the conveying mechanism 4. The width limiting mechanism 3, the dust removal mechanism 5, and the adhesive application mechanism 6 are arranged sequentially along the conveying direction of the substrate. The operation button 8 is located on one side of the width limiting mechanism 3. The width limiting mechanism 3 is used to limit the width of the board-type substrate. The conveying mechanism 4 is used to convey the substrate. The dust removal mechanism 5 is used to remove dust from the surface of the substrate to be coated with adhesive. The adhesive application mechanism 6 is used to apply adhesive to the surface of the substrate. The detection mechanism 7 is used to detect the adhesive application status of the substrate surface. The operation button 8 is used to control the adhesive application speed of the substrate.

[0045] Specifically, such as Figure 2 As shown, several guide rollers 2 are equidistantly arranged on the top and sides of the frame 1. The guide rollers 2 are connected to the bearings of the frame 1 and are used to assist in conveying plate-type substrates.

[0046] Specifically, such as Figure 2As shown, the width limiting mechanism 3 includes a handwheel 31, a bidirectional lead screw 32, two sets of width limiting plates 34, and two sets of limiting wheels 35. The handwheel 31 is fixedly connected to the bidirectional lead screw 32, which is bearing-connected to the top of the frame 1. The handwheel 31 is located on the outside of the frame 1. Two sets of guide posts 33 are provided on both sides of the bidirectional lead screw 32. The guide posts 33 are located on the top of the frame 1 and fixedly connected to the frame 1. The width limiting plates 34 are drivenly connected to the bidirectional lead screw 32 and slidably connected to the guide posts 33. The two sets of limiting wheels 35 are respectively located on the side of the two sets of width limiting plates 34 that are close to each other. Each set of limiting wheels 35 is provided with several... The limiting wheel 35 is connected to the width limiting plate 34 by a bearing. Rotating the handwheel 31 in the forward direction can drive the bidirectional lead screw 32 to rotate in the forward direction. Through the transmission connection between the guide column 33 and the width limiting plate 34, the two sets of width limiting plates 34 can be driven to move closer to each other. Conversely, rotating the handwheel 31 in the reverse direction can drive the two sets of width limiting plates 34 to move further apart, so that the width limiting plates 34 can adapt to substrates of different widths. Adjust the distance between the two sets of width limiting plates 34 until the limiting wheel 35 is in contact with both sides of the substrate width direction. Then, the limiting wheel 35 rotates under the action of the substrate in the conveying state, so as to limit the width of the substrate without affecting the normal conveying.

[0047] Specifically, such as Figures 2-4 As shown, the conveying mechanism 4 includes a motor 41, two sets of bearing brackets 42, two sets of bearing brackets 43, and a conveying roller 46. The motor 41 is fixed at the bottom of the frame 1, and the bearing brackets 42 and 43 are fixed at the top of the frame 1. The two sets of bearing brackets 42 are located away from the width limiting mechanism 3, and the two sets of bearing brackets 43 are located close to the width limiting mechanism 3.

[0048] Both bearing frame 1 42 and bearing frame 2 43 are provided with sliding bearing seat 44 and fixed bearing seat. Sliding bearing seat 44 is located above fixed bearing seat and is slidably connected to bearing frame 1 42 and bearing frame 2 43. Conveyor roller 1 45 is provided on the fixed bearing seat in bearing frame 1 42 and bearing frame 2 43. Conveyor roller 1 45 is connected to the fixed bearing seat bearing. Motor 1 41 is connected to conveyor roller 1 45 through sprocket.

[0049] A second conveyor roller 46 is installed on the sliding bearing seat 44 of the bearing frame 2 43. The second conveyor roller 46 is connected to the sliding bearing seat 44 by a bearing. A second handwheel 47 is connected to the top of both the bearing frame 1 42 and the bearing frame 2 43. The second handwheel 47 is connected to the sliding bearing seat 44 by a bearing. The glue application mechanism 6 is installed on the sliding bearing seats 44 of the two sets of bearing frames 1 42. The starting motor 41 can drive the first conveyor roller 45 on the bearing frame 1 42 and the bearing frame 2 43 to rotate synchronously through the sprocket drive, thereby driving the substrate above the first conveyor roller 45 to rotate according to the set transmission. The direction and speed are transmitted; rotating the sliding bearing seat 44 in the forward direction can drive the sliding bearing seat 44 to slide upward on the bearing frame 42 and bearing frame 43 through the transmission connection between the sliding bearing seat 44 and bearing frame 42. Conversely, rotating the sliding bearing seat 44 in the reverse direction can drive the sliding bearing seat 44 to slide downward on bearing frame 42 and bearing frame 43, thereby realizing the rise or fall of the sliding bearing seat 44, adjusting the distance between the conveyor roller 45 and the conveyor roller 46 and the distance between the glue application mechanism 6 and the conveyor roller 45.

[0050] It should be noted that a tension adjustment device consisting of several rollers is provided between bearing frame 1 42 and bearing frame 2 43 to adjust the tension of the roll material substrate, thereby facilitating the subsequent gluing mechanism 6 to apply glue to the surface of the roll material substrate.

[0051] Specifically, such as Figures 3-8 As shown, the dust removal mechanism 5 includes a support roller 52, two sets of cylinders 54, a dust removal box 55, two sets of cleaning brushes 57, and a motor 58. Support blocks 51 and 53 are fixedly connected to the sides of the two sets of bearing frames 42. Support blocks 51 are located between the bearing frames 42 and 43 and are located below the support blocks 53. The two ends of the support roller 52 are set on the two sets of support blocks 51. The support roller 52 is connected to the support blocks 51 by bearings. The top of the support roller 52 is flush with the top of the conveying roller 45 inside the bearing frame 42. The support roller 52 is used to provide support for the transmission substrate.

[0052] Two sets of cylinders 54 are fixed to the top of two sets of support blocks 53 respectively. The output end of cylinder 54 passes through support block 53 and is fixedly connected to dust collection box 55. The bottom of dust collection box 55 is provided with an adsorption port 551. A fan is connected to the side pipe of dust collection box 55. A filter device is provided on the pipe connecting dust collection box 55 and fan. When cylinder 54 extends, it can drive dust collection box 55 to descend. Conversely, when cylinder 54 retracts, it can drive dust collection box 55 to rise. The fan is used to extract air from adsorption port 551. The filter device is used to filter dust and impurities in the extracted gas.

[0053] like Figure 6 and Figure 7As shown, a brush box 56 is fixedly connected to the bottom of the dust collection box 55. The brush box 56 has a receiving groove located below the suction port 551. Two sets of cleaning brushes 57 are placed in the receiving groove of the brush box 56 and are connected to the brush box 56 by bearings. The two sets of cleaning brushes 57 are located on both sides of the suction port 551. A second motor 58 is fixed to the top of the dust collection box 55. The output end of the second motor 58 is connected to the two sets of cleaning brushes 57 via a pulley. The extension and retraction of the first cylinder 54 adjusts the distance between the cleaning brushes 57 and the support roller 52. The spacing between the materials allows the bottom of the cleaning brush 57 to contact the upper surface of the substrate. Then, the motor 58 starts and drives the two sets of cleaning brushes 57 to rotate synchronously through the pulley drive, so that the cleaning brushes 57 clean the surface of the substrate. At the same time, the exhaust fan starts and draws the dusty air at the bottom of the brush box 56 into the dust collection box 55 through the receiving groove and the suction port 551. Then, it is drawn out through the dust collection box 55 and the pipeline connected to the exhaust fan, and the impurities are filtered by the filter device, so as to realize the active cleaning, adsorption and collection of dust and impurities on the surface of the substrate.

[0054] Specifically, such as Figure 5 , Figures 8-10 As shown, the glue application mechanism 6 includes a glue flow trough 61, a glue leveling component 62, a glue application component 63, and a glue return component 64. The two ends of the glue flow trough 61 are respectively set on the sliding bearing seats 44 of the two sets of bearing brackets 42. The glue flow trough 61 is fixedly connected to the sliding bearing seats 44. A through groove 611 is provided at the top of the glue flow trough 61, and a glue flow port 612 is provided at the bottom of the glue flow trough 61. A glue inlet is provided at one end of the glue flow trough 61, which is connected to a glue inlet device. A circulation glue port is provided at the other end of the glue flow trough 61, which is connected to the glue inlet device. The glue inlet device is used to input a stable glue liquid into the glue flow trough 61 and to recover the glue liquid inside the glue flow trough 61, so as to reuse the glue liquid recovered from the glue flow trough 61.

[0055] The uniform adhesive assembly 62 is located at the top of the adhesive flow tank 61, the application adhesive assembly 63 is located at the bottom of the adhesive flow tank 61, and the return adhesive assembly 64 is located at the bottom of the application adhesive assembly 63. The uniform adhesive assembly 62 is used to improve the uniformity of the adhesive inside the adhesive flow tank 61 and promote the flow of the adhesive, so as to promote the flow of the adhesive from the dispensing port 612 while avoiding the blockage of the dispensing port 612. The application adhesive assembly 63 is used to apply adhesive to the surface of the substrate. The return adhesive assembly 64 is used to recover the adhesive when the application is abnormal, so as to avoid the adhesive from accumulating on the surface of the substrate or equipment when the application is abnormal, thereby avoiding increasing the cleaning difficulty and cleaning cost.

[0056] Furthermore, such as Figures 8-10As shown, the glue-spreading assembly 62 includes a third motor 621, a moving block 622, a fourth motor 623, a glue-spreading plate 624, and two sets of bellows covers 625. A support block 3 is fixedly connected to the top of the glue-spreading trough 61, and the third motor 621 is fixed to the support block 3. Two sets of rotating wheels are connected to the top bearing of the glue-spreading trough 61. The output end of the third motor 621 is fixedly connected to one set of rotating wheels. The two sets of rotating wheels are connected by a synchronous belt drive. The moving block 622 is located above the through-slot 611. The movable block 622 is fixed to the side of the synchronous belt, and the motor 623 is fixed to the top of the movable block 622. The output end of the motor 623 is located in the through groove 611 and is fixedly connected to the glue-spreading plate 624. The glue-spreading plate 624 is located inside the glue flow trough 61. The bottom shape of the glue-spreading plate 624 is the same as the shape of the glue flow port 612. The glue-spreading plate 624 is flat. When the setting direction of the glue-spreading plate 624 is perpendicular to the flow direction of the glue from the glue inlet to the circulation port of the glue flow trough 61, Motor 3 (621) starts rotating forward, driving the moving block 622 above the glue dispensing tank 61 via a synchronous belt, moving it from the glue inlet to the circulation outlet side along the setting direction of the glue dispensing tank 61. At this time, the glue-spreading plate 624 can separate the glue inside the glue dispensing tank 61. When blockage or accumulation occurs in the glue dispensing outlet 612, it can scrape away the blockage, preventing glue blockage or accumulation inside the glue dispensing tank 61, thus promoting the circulation of glue inside the glue dispensing tank 61 and clearing blockages. When the glue-spreading plate 624 moves to one end of the circulation outlet, motor 4 (623) starts, driving the glue-spreading plate 624 to rotate 90 degrees, making the glue-spreading plate 624 parallel to the setting direction of the glue dispensing tank 61. Then, motor 3 (621) starts rotating in reverse, driving the moving block 622 above the glue dispensing tank 61 via a synchronous belt, moving it from the circulation outlet to the glue inlet side along the setting direction of the glue dispensing tank 61. Since the glue-spreading plate 624 is flat, it can reduce the obstruction of the glue at this time, and at the same time complete the reset.

[0057] The accordion cover 625 is located above the channel 611. Two sets of accordion covers 625 are arranged on both sides of the movable block 622. The ends of the two sets of accordion covers 625 that are close to each other are connected to the movable block 622, and the ends of the two sets of accordion covers 625 that are far apart from each other are fixedly connected to the glue flow channel 61. The accordion cover 625 is used to create a closed condition above the channel 611 to prevent dust and debris in the environment from entering the glue flow channel 61 through the channel 611, causing blockage of the glue flow port 612, and affecting the formation and uniformity of the glue curtain.

[0058] Furthermore, such as Figures 8-10As shown, the glue application assembly 63 includes two sets of fixed blocks 631, two sets of cylinders 632, two sets of sliding blocks 633, a glue roller 634, a motor 635, a glue flow plate 636, and a motor 637. The two sets of fixed blocks 631 are fixed on the bottom sides of the glue flow channel 61, and the two sets of cylinders 632 are fixed on the top sides of the glue flow channel 61. The fixed blocks 631 are provided with a sliding groove, and the sliding blocks 633 are disposed in the sliding groove and slidably connected to the fixed blocks 631. The output ends of the two sets of cylinders 632 pass through the fixed blocks 631 and are fixedly connected to the two sets of sliding blocks 633. The two ends of the glue roller 634 are respectively disposed on the two sets of sliding blocks 633. The glue roller 634 is connected to the sliding blocks 633 by bearings. The top of the glue roller 634 is located in the glue flow port 612. The motor 635 is fixed on the side of one set of sliding blocks 633 away from the glue roller 634. The output end of the motor 635 is fixedly connected to the glue roller 634.

[0059] The top of the glue-dispensing plate 636 is connected to two sets of fixed blocks 631 by bearings, and the bottom of the glue-dispensing plate 636 is slidably connected to the fixed blocks 631. The motor 637 is fixed to the side of one set of fixed blocks 631 by a connecting seat. The output end of the motor 637 is connected to the bottom of the glue-dispensing plate 636 by gear transmission. The distance between the upper end of the glue-dispensing plate 636 and the glue-rolling cylinder 634 is set according to actual needs. The axis of the output end of the motor 637 is collinear with the axis of the top of the glue-dispensing plate 636 and the axis of the connection between the two sets of fixed blocks 631 bearings. The cylinder 632 extends to drive the sliding block 633 to descend, and the cylinder 632 retracts to drive the sliding block 633 to rise. The distance between the glue-rolling cylinder 634 and the glue outlet 612 is adjusted so that the glue liquid inside the glue-dispensing tank 61 flows out as needed.

[0060] When motor 635 starts rotating forward, the adhesive flowing from the dispensing nozzle 612 first flows onto the roller drum 634. The rotating roller drum 634 then increases the flow rate of the adhesive. During this process, the uniformly rotating roller drum 634 absorbs and weakens flow fluctuations caused by pulses from the glue inlet device or changes in the liquid level of the glue inlet device, providing a stable and controllable adhesive delivery surface and reducing fluctuations caused by viscosity and liquid level changes when relying solely on gravity flow. The dispensing plate 636 is used to evenly peel the adhesive from the roller drum 634 onto the dispensing plate 636, allowing it to flow down along the edge of the dispensing plate 636 to form a curtain of uniform thickness. The adhesive flows onto the substrate. By controlling the gap between the adhesive dispensing plate 636 and the adhesive roller 634, and the rotation speed of the adhesive roller 634, the thickness of the adhesive flowing from the dispensing port 612 onto the substrate can be controlled. The resulting curtain has a more uniform initial thickness than one that flows directly. The motor 637 starts and drives the adhesive dispensing plate 636 to rotate around the bearing connection between its top and the fixed block 631 via gear transmission. This adjusts the tilt angle of the adhesive dispensing plate 636 and the distance between it and the adhesive roller 634, ensuring that the adhesive dispensing plate 636 can adapt to adhesives with different flow rates and adhesive rollers 634 with different heights, thus ensuring the formation of a uniform and stable adhesive curtain.

[0061] Furthermore, such as Figures 8-10 As shown, the re-glue assembly 64 includes a support plate 641, a glue collection tank 642, several cylinders 643, and several re-glue ports 644. The support plate 641 is fixed between two sets of fixing blocks 631, with the support plate 641 located at the bottom of the fixing blocks 631. Several cylinders 643 are equidistantly fixed to the top of the support plate 641, and the output ends of the cylinders 643 are fixedly connected to the glue collection tank 642. The glue collection tank 642 is slidably connected to the two sets of fixing blocks 631. The glue collection tank 642 is inclinedly arranged below the glue roller 634. Several re-glue ports 644 are equidistantly arranged on the side of the glue collection tank 642 near the cylinders 643. The re-glue ports 644 are connected to... The adhesive recovery device, when cylinder 643 is activated and extended, can move the adhesive collection tank 642 towards the side of the adhesive flow plate 636, so that the adhesive from the adhesive flow plate 636 flows to the adhesive collection tank 642, and then the adhesive recovery device recovers the adhesive on the adhesive collection tank 642 through the adhesive return port 644. When cylinder 643 is activated and retracted, it can move the adhesive collection tank 642 away from the adhesive flow plate 636 and below the roller cylinder 634, to recover the adhesive that the adhesive flow plate 636 fails to peel off from the roller cylinder 634, and prevent the adhesive dripping from the gap between the roller cylinder 634 and the adhesive flow plate 636 from falling directly onto the substrate and reducing the uniformity of adhesive application on the substrate surface.

[0062] Based on the above supplementary explanation, the abnormal handling method one is as follows: When there is no glue on the glue dispensing plate 636 or the curtain is uneven, cylinder three 643 starts to extend, and the glue collection tank 642 collects the glue during the abnormal handling. At the same time, the glue feeding device increases the glue feeding rate, cylinder two 632 extends, increasing the distance between the glue roller 634 and the glue dispensing port 612, and motor five 635 increases the speed to promote the glue to flow quickly to the glue dispensing plate 636, so that the glue dispensing plate 636 is fully wetted and a uniform curtain can be formed at the lower end. After that, it returns to the initial state, which is set by the staff.

[0063] Abnormal Handling Method Two: When the glue outlet 612 of the glue flow tank 61 becomes blocked, cylinder two 632 starts to extend, driving the sliding block 633 and the glue roller 634 to descend, increasing the distance between the glue roller 634 and the glue outlet 612. At the same time, motor four 623 starts, driving the glue leveling plate 624 to be set in a direction perpendicular to the flow direction of the glue from the glue inlet of the glue flow tank 61 to the circulation glue outlet. Then, motor three 621 starts to rotate forward, driving the moving block 622 to move from the glue inlet to the circulation glue outlet side, so that the glue leveling plate 624 can separate the glue inside the glue flow tank 61 and scrape away the blockage and accumulation. At the same time, cylinder three 643 starts to extend, and the glue collection tank 642 collects the glue during the abnormal handling.

[0064] It should be noted that, in order to ensure the efficiency of scraping away blockages and accumulations, the operating speed of motor 3621 can be greater than the normal unblocking speed.

[0065] Specifically, such as Figure 5 As shown, the detection mechanism 7 includes a second support plate 71 and a scanner 72. The second support plate 71 is fixed between two sets of bearing frames 42. The second support plate 71 is located on the side of the adhesive application mechanism 6 away from the second bearing frame 43. The scanner 72 is fixed at the bottom of the second support plate 71. The scanner 72 is used to scan the surface of the substrate after adhesive application to obtain the adhesive application image. The scanner 72 is connected to an identification and analysis system. The identification and analysis system is used to extract at least the adhesive application protrusions, adhesive gaps, and straight adhesive application at the edges of the substrate surface based on the obtained adhesive application image, so as to determine the uniformity of adhesive application.

[0066] Working principle of surface coating machine:

[0067] Step 1: Equipment preparation and parameter setting: The operator pre-adjusts the equipment according to the width and thickness of the substrate and the adhesive process requirements for this production.

[0068] Step 2: Substrate introduction, dust removal and conveying: The substrate is introduced from the width limiting mechanism 3. The motor 41 is started and drives the two sets of conveying rollers 45 to rotate synchronously through the sprocket drive, so that the substrate moves forward at a constant speed along the direction determined by the guide roller 2. At the same time, the cylinder 54 extends and drives the dust collection box 55 to descend, so that the cleaning brush 57 at the bottom contacts the surface of the substrate. The motor 58 starts and drives the cleaning brush 57 to rotate to remove dust. The fan starts and sucks the dust through the suction port 551 and collects it through the filter device to ensure that the surface of the substrate is clean.

[0069] Step 3: Uniform Adhesive Curtain Formation in the Core Adhesive Application Process: Clean substrate enters the adhesive application station. The adhesive inlet device pumps the adhesive liquid into the inlet of the adhesive distribution tank 61 at a constant pressure and flow rate. The adhesive liquid flows within the tank and returns from the circulation port, forming a circulation and maintaining the uniformity of the adhesive liquid properties. During this process, the adhesive liquid flows out from the dispensing port 612 at the bottom of the adhesive distribution tank 61. The uniform adhesive distribution component 62 controls the uniform adhesive distribution plate 624 to move laterally within the adhesive distribution tank 61 according to a set program, breaking up any gels or sediments that may form in the adhesive liquid and effectively preventing clogging of the dispensing port 612.

[0070] The adhesive flowing from the dispensing nozzle 612 first flows onto the surface of the uniformly rotating roller 634. The constant rotation of the roller 634 absorbs and eliminates the pulse fluctuations in the adhesive supply, resulting in a uniform adhesive film. Then, the upper edge of the dispensing plate 636 guides the adhesive film from the surface of the roller 634 onto the dispensing plate 636 with a very precise gap, so that the adhesive film is completely and uniformly peeled off and flows down the smooth inclined surface of the dispensing plate 636. It naturally extends from the bottom edge of the dispensing plate 636 into a uniform and continuous adhesive curtain. This uniform adhesive curtain is vertically poured onto the surface of the substrate passing below at a uniform speed, thereby completing the surface application with ultra-high uniformity.

[0071] Step 4: Anomaly monitoring and adhesive recovery: The substrate after adhesive application is photographed in real time by a scanner with 72 pairs of images and transmitted to an identification and analysis system to identify and analyze whether there are uneven defects such as adhesive gaps or protrusions.

[0072] If there are no uneven areas such as glue application gaps or protrusions, the identification and analysis system determines that it is normal production. The glue collection tank 642 of the glue return component 64 is located directly below the glue roller 634 and only collects a small amount of residual glue that may drip.

[0073] If uneven application of adhesive, such as gaps or protrusions, occurs intermittently, the identification and analysis system determines it as a curtain abnormality. The control system can trigger abnormality handling mode one, where cylinder three 643 extends, moving the adhesive collection tank 642 forward to directly below the adhesive flow plate 636 to collect substandard adhesive. At the same time, the system automatically increases the adhesive supply and adjusts the speed of the adhesive roller 634 to quickly make the curtain more uniform. The collected adhesive is returned to the circulation system through the adhesive return port 644 to avoid waste and pollution.

[0074] If uneven glue application, such as gaps or bumps, continues, the identification and analysis system determines that the glue outlet 612 is not dispensing properly and there is a potential blockage. It immediately triggers the second abnormal handling mode: cylinder 632 extends, lowers the glue roller 634, widens the gap between it and the glue outlet 612, activates the glue spreading component 62, and the glue spreading plate 624 cuts vertically into the glue and moves laterally at high speed to forcefully scrape away the blockage. At the same time, the glue collection tank 642 moves forward to collect the abnormal glue that flowed out during this process. After the blockage is cleared, all components are reset and normal production is quickly restored.

[0075] The above methods can improve the uniformity and stability of adhesive distribution, significantly reduce the risk of clogging, and simplify the maintenance process.

[0076] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0077] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A surface sizing machine with uniform sizing, comprising a frame (1), a width limiting mechanism (3), a conveying mechanism (4), a dust removal mechanism (5), a sizing mechanism (6), a detection mechanism (7), an operation button (8), characterized in that, The width limiting mechanism (3), the conveying mechanism (4) and the operation button (8) are all located on the top of the frame (1). The dust removal mechanism (5), the glue application mechanism (6) and the detection mechanism (7) are all located on the conveying mechanism (4). The width limiting mechanism (3), the dust removal mechanism (5) and the glue application mechanism (6) are arranged sequentially along the conveying direction of the substrate. The conveying mechanism (4) includes two sets of bearing frame one (42) and two sets of bearing frame two (43). Each of the bearing frame one (42) and bearing frame two (43) is provided with a sliding bearing seat (44) and a fixed bearing seat. The sliding bearing seat (44) is located above the fixed bearing seat. The glue application mechanism (6) includes a glue flow trough (61), a glue leveling component (62), a glue application component (63), and a glue return component (64). The glue flow trough (61) is fixedly connected to the sliding bearing seat (44). A through groove (611) is provided at the top of the glue flow trough (61), and a glue outlet (612) is provided at the bottom of the glue flow trough (61). The glue-spreading assembly (62) includes a third motor (621), a moving block (622), a fourth motor (623), a glue-spreading plate (624), and two sets of bellows covers (625). The top of the glue-spreading trough (61) is fixedly connected to a third support block. The third motor (621) is fixed on the third support block. The top bearing of the glue-spreading trough (61) is connected to two sets of rotating wheels. The output end of the third motor (621) is fixedly connected to one of the rotating wheels. The two sets of rotating wheels are connected by a synchronous belt drive. The moving block (622) is located above the through groove (611). The moving block (622) is fixed to the side of the synchronous belt. The fourth motor (623) is fixed to the top of the moving block (622). The output end of the fourth motor (623) is located inside the through groove (611) and fixedly connected to the glue-spreading plate (624). The glue-spreading plate (624) is located inside the glue-spreading trough (61). The glue application assembly (63) includes two sets of fixed blocks (631), two sets of cylinders (632), two sets of sliding blocks (633), a glue roller (634), a motor (635), a glue flow plate (636), and a motor (637). The fixed blocks (631) are provided with a sliding groove. The sliding blocks (633) are disposed in the sliding groove and are slidably connected to the fixed blocks (631). The output ends of the two sets of cylinders (632) pass through the fixed blocks (631) and are fixedly connected to the two sets of sliding blocks (633) respectively. The two ends of the glue roller (634) are respectively disposed on the two sets of sliding blocks (633). The glue roller (634) is connected to the sliding blocks (633) by bearings. The top of the glue roller (634) is located in the glue flow port (612). The output end of the motor (635) is fixedly connected to the glue roller (634). The two sets of fixing blocks (631) are respectively fixed on the bottom sides of the glue flow channel (61), the two sets of cylinders (632) are fixed on the top sides of the glue flow channel (61), and the motor (635) is fixed on the side of a set of sliding blocks (633) away from the glue roller (634). The top of the glue-dispensing plate (636) is connected to two sets of fixed blocks (631) by bearings, the bottom of the glue-dispensing plate (636) is slidably connected to the fixed blocks (631), the motor six (637) is fixed to the side of a set of fixed blocks (631) by a connecting seat, and the output end of the motor six (637) is connected to the bottom gear of the glue-dispensing plate (636) by gear transmission.

2. The surface size press of uniform glue application of claim 1, wherein, The width limiting mechanism (3) includes a handwheel (31), a two-way lead screw (32), two sets of width limiting plates (34) and two sets of limiting wheels (35). The handwheel (31) is fixedly connected to the two-way lead screw (32). The two-way lead screw (32) is bearing connected to the top of the frame (1). The handwheel (31) is located on the outside of the frame (1). Two sets of guide columns (33) are fixedly connected to the frame (1) on both sides of the two-way lead screw (32). The width limiting plate (34) is drivenly connected to the two-way lead screw (32). The width limiting plate (34) is slidably connected to the guide column (33). The two sets of limiting wheels (35) are respectively set on the side of the two sets of width limiting plates (34) that are close to each other. The limiting wheel (35) is bearing connected to the width limiting plate (34).

3. The surface size press of uniform glue application of claim 2, wherein, The conveying mechanism (4) also includes a motor (41) and a conveying roller (46). The motor (41) is fixed at the bottom of the frame (1), and the bearing frame (42) and bearing frame (43) are fixed at the top of the frame (1). The two sets of bearing frames (42) are set away from the width limiting mechanism (3), and the two sets of bearing frames (43) are set close to the width limiting mechanism (3). The sliding bearing seat (44) is slidably connected to the bearing frame one (42) and the bearing frame two (43). The fixed bearing seats in the bearing frame one (42) and the bearing frame two (43) are provided with a conveying roller one (45). The conveying roller one (45) is connected to the fixed bearing seat bearing. The motor one (41) is connected to the conveying roller one (45) through a sprocket. The second bearing frame (43) is provided with a second conveyor roller (46) on the sliding bearing seat (44). The second conveyor roller (46) is connected to the sliding bearing seat (44) by a bearing. The top of the first bearing frame (42) and the second bearing frame (43) are both connected to a second handwheel (47) by a transmission. The second handwheel (47) is connected to the sliding bearing seat (44) by a bearing. The glue application mechanism (6) is provided on the sliding bearing seats (44) of the two sets of first bearing frames (42).

4. The surface size press of uniform glue application of claim 3, wherein, The dust removal mechanism (5) includes a support roller (52), two sets of cylinders (54), a dust removal box (55), two sets of cleaning brushes (57) and a motor (58). The sides of the two sets of bearing frames (42) are fixedly connected with support blocks (51) and support blocks (53). The support blocks (51) are located between the bearing frames (42) and the bearing frames (43). The two ends of the support roller (52) are set on the two sets of support blocks (51). The support roller (52) is connected to the support blocks (51) by bearings. The two sets of cylinders (54) are fixed on the top of the two sets of support blocks (53). The output end of the cylinder (54) passes through the support block (53) and is fixedly connected to the dust collection box (55). The bottom of the dust collection box (55) is provided with an adsorption port (551). The side pipe of the dust collection box (55) is connected to an induced draft fan. A filter device is provided on the pipe connecting the dust collection box (55) and the induced draft fan.

5. A surface adhesive applicator for uniform adhesive application according to claim 4, characterized in that, The bottom of the dust collection box (55) is fixedly connected to a brush box (56). The brush box (56) is provided with a receiving groove. Two sets of cleaning brushes (57) are set in the receiving groove of the brush box (56). The cleaning brushes (57) are connected to the brush box (56) by bearings. The two sets of cleaning brushes (57) are located on both sides of the suction port (551). The second motor (58) is fixed on the top of the dust collection box (55). The output end of the second motor (58) is connected to the two sets of cleaning brushes (57) through a pulley.

6. A surface adhesive applicator for uniform adhesive application according to claim 5, characterized in that, The two ends of the glue flow channel (61) are respectively set on the sliding bearing seats (44) of the two sets of bearing brackets (42). One end of the glue flow channel (61) is provided with a glue inlet, which is connected to the glue inlet device. The other end of the glue flow channel (61) is provided with a circulating glue inlet, which is connected to the glue inlet device.

7. A surface adhesive applicator for uniform adhesive application according to claim 6, characterized in that, The accordion cover (625) is located above the through groove (611). Two sets of accordion covers (625) are arranged on both sides of the moving block (622). The ends of the two sets of accordion covers (625) that are close to each other are connected to the moving block (622), and the ends of the two sets of accordion covers (625) that are far apart from each other are fixedly connected to the glue flow groove (61).

8. A surface adhesive applicator for uniform adhesive application according to claim 7, characterized in that, The glue return assembly (64) includes a support plate (641), a glue collection tank (642), several cylinders (643), and several glue return ports (644). The support plate (641) is fixed between two sets of fixing blocks (631) and is located at the bottom of the fixing blocks (631). Several cylinders (643) are fixed at equal intervals on the top of the support plate (641). The output end of the cylinders (643) is fixedly connected to the glue collection tank (642). The glue collection tank (642) is slidably connected to the two sets of fixing blocks (631). The glue collection tank (642) is inclined and located below the glue roller (634). Several glue return ports (644) are equidistantly located on the side of the glue collection tank (642) near the cylinders (643). Each glue return port (644) is connected to a glue recovery device.

9. A surface adhesive applicator for uniform adhesive application according to claim 8, characterized in that, The detection mechanism (7) includes a second support plate (71) and a scanner (72). The second support plate (71) is fixed between two sets of bearing frames (42). The second support plate (71) is located on the side of the glue application mechanism (6) away from the bearing frame (43). The scanner (72) is fixed at the bottom of the second support plate (71). The scanner (72) is used to scan the surface of the substrate after glue application and obtain the glue application image. The scanner (72) is connected to an identification and analysis system. The identification and analysis system is used to extract the glue application protrusions, glue gaps, and straight edge glue application on the substrate surface based on the obtained glue application image, and to determine the uniformity of glue application.

Images