Paper film laminating machine feeding and discharging mechanism and method

Abstract

This invention belongs to the field of paper-film lamination technology, specifically disclosing a feeding and unloading mechanism and method for a paper-film laminating machine. It includes a feeding unit, a lamination unit, and an unloading unit. The feeding unit includes a paper feeding unit and a film feeding unit. Both the paper feeding unit and the film feeding unit include an unwinding roller, a feeding conveyor frame, a feeding conveyor roller mounted on the feeding conveyor frame, and a source correction unit mounted on the feeding conveyor frame. The source correction unit includes: two correction frames symmetrically arranged on both sides of the feeding conveyor frame; a correction rod installed on the inner side of each correction frame; a correction roller coaxially connected to a connecting plate, the connecting plate slidably mounted on the correction rod; and correction rollers on the two correction frames facing each other, used to contact and guide the paper or film from both sides; and an elastic element connected between the connecting plate and the correction frame. This invention can improve product qualification rate and quality.

Description

Technical Field

[0001] This invention relates to the field of paper film lamination technology, specifically to a paper film laminating machine loading and unloading mechanism and method. Background Technology

[0002] A paper-film laminating machine is a specialized automated device used to precisely laminate paper (or cardboard) with plastic film. Its core function is to bond transparent plastic film to a paper substrate through processes such as gluing, heating, and pressurizing, forming a paper-plastic composite product that combines the texture of paper with the protective properties of film. It is one of the core supporting equipment in industries such as printing, packaging, and advertising production, and is also often referred to as a laminating machine.

[0003] The loading and unloading mechanism is the "core of material conveying" of the paper film laminating machine, which directly determines the lamination accuracy and production efficiency. However, most existing equipment only has basic conveying components in its loading and unloading mechanism and is not equipped with a targeted correction structure. This can easily cause the paper and film to shift to the left or right or wrinkle during the conveying process, which in turn causes the edge misalignment in the subsequent lamination process. This results in the lamination edge offset exceeding the acceptable range, which greatly reduces the product qualification rate and quality. Summary of the Invention

[0004] This invention provides a feeding and unloading mechanism and method for a paper film laminating machine, with the aim of improving product qualification rate and quality.

[0005] The present invention is achieved through the following technical solution: a paper-film laminating machine loading and unloading mechanism, comprising a loading unit, a laminating unit and an unloading unit, wherein the loading unit comprises a paper loading unit for conveying paper and a film loading unit for conveying film, and the laminating unit is used to press the conveyed paper and film together to form a product.

[0006] Both the paper feeding unit and the film feeding unit include an unwinding roller, a feeding conveyor frame, a feeding conveyor roller disposed on the feeding conveyor frame, and a source correction unit installed on the feeding conveyor frame;

[0007] The source correction unit includes:

[0008] Two alignment frames are symmetrically arranged on both sides of the feeding conveyor frame;

[0009] A correction rod is installed on the inside of each of the correction frames;

[0010] A web-aligning roller, coaxially connected to a connecting plate, the connecting plate being slidably mounted on a web-aligning rod; web-aligning rollers on two web-aligning frames are arranged facing each other, for contacting and guiding paper or film from both sides; and

[0011] An elastic element is connected between the connecting plate and the alignment frame.

[0012] This design features two symmetrically arranged correction frames and opposing correction rollers, forming a bidirectional limiting and guiding structure. During paper / film transport, the paper / film contacts the correction rollers from both sides. When left or right deviation occurs, the correction roller on the deviated side applies a flexible pushing force to the deviated portion under the elastic force of the elastic element. Combined with the limiting effect of the correction roller on the other side, this quickly returns the paper / film to the preset transport trajectory, achieving immediate correction of deviation and preventing material shifting and wrinkling from the source of transport. Compared to existing equipment that suffers from non-source correction or correction failure leading to excessive deviation at the lamination edge, this structure can control the transport deviation of paper and film within acceptable limits, fundamentally preventing edge misalignment in subsequent lamination stages and significantly improving the yield and quality of laminated products.

[0013] Compared to existing rigid limiting and correcting structures that are prone to damaging and tearing thin paper / film, this structure, through the cooperation of an elastic element and a sliding connecting plate, makes the limiting force of the correcting roller on the material a flexible and adjustable elastic force, rather than a rigid impact force. The elastic element can adaptively extend and retract according to the degree of material deviation, ensuring the effectiveness of correction while avoiding damage or tearing of thin materials due to excessive force. This adapts to the conveying needs of thin paper and film of different thicknesses, reduces material loss, and improves material adaptability.

[0014] The source correction unit in this solution serves as the core component of the feeding unit. It works in conjunction with the unwinding roller and feeding conveyor roller of the paper feeding unit and film feeding unit to ensure independent, stable, and precise feeding of paper and film, providing a material foundation for precise alignment of the pressing operation in the laminating unit. At the same time, the simple design of this correction structure allows for seamless linkage with the laminating unit and unloading unit, ensuring the operational stability of the entire feeding mechanism, further improving overall production efficiency and product quality, and meeting the needs of large-scale production.

[0015] Furthermore, the elastic element is a correction spring, which is sleeved on the correction rod, and its two ends abut against the correction frame and the connecting plate, respectively.

[0016] In this design, the alignment spring is sleeved on the alignment rod, which ensures that the spring's extension and contraction direction is consistent with the axis of the alignment rod. This ensures that the spring's elastic force is accurately transmitted to the connecting plate along the axis of the alignment rod, and then acts on the alignment roller. This avoids uneven force on the alignment roller and alignment failure caused by the deviation of the elastic force, and makes the limiting and guiding force of the alignment roller on the paper / film more uniform, ensuring stable alignment effect.

[0017] Furthermore, a stop is provided at the end of the correction rod away from the correction frame, and the stop is used to limit the sliding stroke of the connecting plate.

[0018] The stop block is located at the end of the correction rod away from the correction frame. It can directly block the connecting plate from sliding outward along the axis of the correction rod, effectively limiting the maximum sliding stroke of the connecting plate, preventing the connecting plate from slipping off the end of the correction rod due to excessive sliding, preventing the correction roller from falling off and the correction unit from failing, and ensuring the structural integrity and operational stability of the entire source correction unit.

[0019] Furthermore, the laminating unit includes a laminating frame and a laminating roller assembly, an upper pressure roller, and a lower pressure roller mounted on the laminating frame;

[0020] The laminating roller assembly includes multiple transfer rollers for guiding paper and film into the gap between the upper pressure roller and the lower pressure roller;

[0021] The laminating frame is equipped with a laminating cylinder connected to the upper pressure roller. The laminating cylinder is used to drive the upper pressure roller to rise and fall, so as to adjust the gap and clamping force between it and the lower pressure roller.

[0022] In this solution, the laminating roller assembly consists of multiple transfer rollers, which can guide and smoothly transfer the paper and film conveyed by the feeding unit step by step, and accurately guide them to the gap between the upper and lower pressure rollers. This prevents the paper and film from shifting, wrinkling or misaligning before entering the lamination stage, ensuring that the edges of the two are accurately aligned, laying a precise benchmark for subsequent lamination, and improving the edge alignment accuracy of the laminated products.

[0023] The laminating cylinder is connected to the upper pressure roller, which can drive the upper pressure roller to move up and down flexibly, thereby precisely adjusting the gap and clamping force between the upper and lower pressure rollers. For different thicknesses of paper and film, and for various lamination needs, the gap and clamping force can be adjusted accordingly. This ensures a tight bond between the paper and film, squeezing out tiny air bubbles from the bonding surface and preventing delamination and film peeling. It also avoids material deformation and surface scratches caused by excessive pressure, balancing lamination strength and product surface texture to meet diverse production needs.

[0024] Furthermore, a pressure roller shaft is coaxially connected to the end of the upper pressure roller, and the pressure roller shaft is vertically slidingly engaged with the laminating frame; a pressure plate is connected to the output end of the laminating cylinder, and the pressure plate is vertically slidingly engaged with the laminating frame; a connecting rod is connected to the bottom of the pressure plate, and a collar is connected to the bottom end of the connecting rod, and the collar is coaxially sleeved on the pressure roller shaft of the upper pressure roller; an adjusting spring is connected to the top side of the pressure roller shaft and the collar.

[0025] In this design, the upper pressure roller is coaxially connected to the pressure roller shaft (sliding vertically with the laminating frame), and the output end of the laminating cylinder is connected to the pressure plate (sliding vertically with the laminating frame). Flexible linkage between the laminating cylinder and the upper pressure roller is achieved through connecting rods and collars. Furthermore, the pressure roller shaft and the adjusting spring on the top side of the collar form an elastic buffer structure. This allows for precise adjustment of the pressing gap and clamping force. The laminating cylinder drives the pressure plate to slide vertically, and through the connecting rods and collars, it drives the pressure roller shaft and the upper pressure roller to rise and fall synchronously. Combined with the vertical sliding guide between the pressure roller shaft and the laminating frame, this ensures smooth and unbiased lifting of the upper pressure roller, and precise adjustment of the gap between it and the lower pressure roller. Secondly... It provides flexible buffering during pressing. The adjustable spring can buffer the driving force of the laminating cylinder, avoiding deformation and surface scratches of thin materials caused by rigid pressing. At the same time, the spring force can adaptively compensate for small displacements during the pressing process, ensuring that the clamping force is evenly applied to the paper and film bonding surfaces, fully squeezing out tiny air bubbles in the bonding surfaces, and avoiding delamination and film removal. Thirdly, it is suitable for diversified production. By combining the rigid drive of the laminating cylinder with the flexible buffering of the adjustable spring, the gap size and clamping force can be flexibly adjusted for different thicknesses of paper and film and for composite requirements, taking into account both the bonding firmness and the surface texture of the product, and adapting to the laminating needs of multiple specifications of materials.

[0026] Furthermore, the unloading unit includes an unloading conveyor frame, an unloading and winding roller for winding the laminated product, and a cutting assembly disposed at the front end of the unloading and winding roller for cutting the laminated product. The unloading conveyor frame is provided with an unloading conveyor roller.

[0027] The feeding and winding rollers can automatically and orderly wind up the cut composite products, replacing traditional manual stacking operations, significantly reducing labor intensity, and avoiding product damage and stacking chaos caused by manual operation. The cutting component is located at the front end of the feeding and winding rollers, which can accurately cut the laminated products during the conveying process into preset sizes according to production needs, facilitating orderly winding by the subsequent feeding and winding rollers, and meeting the needs of direct product delivery or subsequent secondary processing.

[0028] Furthermore, the cutting assembly includes a cutting frame, a cutting cylinder, a knife handle, a cutting blade, and a clamping component. The cutting frame is connected to the unloading conveyor frame, the cylinder body of the cutting cylinder is connected to the cutting frame, the knife handle is connected to the output shaft of the cutting cylinder, and the cutting blade is connected to the knife handle.

[0029] The clamping component includes a mounting plate, a guide rod, a pressure head, and a limiting head. The limiting head and the pressure head are respectively connected to the top and bottom ends of the guide rod. One end of the mounting plate is perpendicularly connected to the output shaft of the cutting cylinder. The guide rod extends vertically through the mounting plate and slides vertically with the mounting plate. The limiting head can prevent the guide rod from detaching from the mounting plate. A compression spring is sleeved on the outside of the guide rod. The two ends of the compression spring abut against the mounting plate and the pressure head, respectively. In its natural state, the bottom of the pressure head is located below the cutter.

[0030] In this solution, the cutting frame is fixed to the unloading conveyor frame, providing a stable mounting base for the cutting cylinder, knife handle, and cutter. The cutting cylinder drives the knife handle to move the cutter vertically, ensuring accurate cutting trajectory and avoiding cutting deviation. The mounting plate is vertically connected to the output shaft of the cutting cylinder, and the guide rod passes vertically through the mounting plate and slides. The compression spring is sleeved on the guide rod and abuts against the mounting plate and the pressure head. In its natural state, the pressure head is located below the cutter. During cutting, the pressure head contacts the product first and flexibly presses the product under the action of the compression spring, avoiding slippage and wrinkles when cutting thin composite products. At the same time, the limiting head restricts the guide rod from detaching from the mounting plate, ensuring the stability of the pressing structure.

[0031] The flexible clamping structure in this solution enables precise cutting, ensuring neat product edges and completely avoiding burrs and skewing, thus improving cutting quality. In addition, this solution is adaptable to multiple specifications of cutting, with an adjustable cutting cylinder stroke. Combined with the flexible clamping structure, it can precisely cut laminated products of different thicknesses and sizes.

[0032] Furthermore, the unloading unit also includes an unloading correction unit, and the unloading conveyor frame includes a first unloading conveyor frame and a second unloading conveyor frame, with the unloading correction unit located between the first unloading conveyor frame and the second unloading conveyor frame;

[0033] The feeding and correction unit includes a vertical plate, a base plate, a rotating ring, and a drive assembly. The vertical plate is vertically arranged, and the base plate is connected to the lower side of the vertical plate. The rotating ring is located on the other side of the vertical plate, and multiple support rollers are rotatably connected to one side of the vertical plate. The multiple support rollers are evenly distributed along the circumference of the rotating ring, and all the multiple support rollers are rotatably supported on the outside of the rotating ring. Multiple guide rollers are evenly distributed along the circumference of the rotating ring. The number of guide rollers is even, and the distance between two guide rollers located on the same diameter is 1-3 mm greater than the width of the laminated product.

[0034] The guide roller is rotatably connected to the rotating ring, and the drive assembly is used to drive the rotating ring to rotate.

[0035] This solution enables secondary dynamic correction of the product during the feeding process after lamination. By setting a feeding correction unit between the first feeding conveyor and the second feeding conveyor, the conveying trajectory of the product after lamination and cutting is corrected, further ensuring that the product edges are neat and not skewed, and improving the quality of finished product winding.

[0036] The rotating ring is supported by multiple circumferentially evenly arranged support rollers, which makes the rotating ring rotate smoothly, has high coaxiality, low rotational resistance, and stable and reliable operation, avoiding product pulling or displacement caused by rotation jamming or shaking.

[0037] An even number of guide rollers are evenly distributed circumferentially on the rotating ring, so that two guide rollers on the same diameter form a pair of limiting and guiding structures, which can flexibly limit and guide the product on both sides, so that the product is always kept in the center position of the conveyor.

[0038] The distance between two guide rollers on the same diameter is 1–3 mm greater than the product width. This ensures that the product has sufficient limiting and correction function, but will not pinch or scratch thin products due to the small gap, thus balancing correction accuracy and product protection.

[0039] The guide roller is rotatably connected to the rotating ring, and the product and the guide roller are subjected to rolling friction, which has low friction and avoids scratches, wrinkles or stretching deformation on the product surface. It is especially suitable for thin paper film composites.

[0040] The drive component drives the rotating ring to rotate continuously, so that multiple sets of guide rollers participate in the guidance in turn, avoiding long-term wear of guide rollers in a single position, while making the product more uniformly stressed and the correction effect continuous and stable.

[0041] In this solution, the feeding and correction unit is independently arranged between the two feeding conveyor frames, without interfering with the original conveying, cutting, and winding structure. The overall layout is reasonable and easy to integrate with the existing feeding unit to achieve integrated continuous operation of conveying, correction, and winding.

[0042] Furthermore, the drive assembly includes a motor and multiple sets of transmission components. The motor is mounted on the base plate, and the transmission components are rotatably connected to the vertical plate.

[0043] The transmission component includes a transmission wheel and a drive wheel connected coaxially. The motor is connected to one of the transmission components. Multiple sets of transmission components are evenly distributed along the circumference of the rotating ring. A chain is provided between the transmission wheels in the multiple sets of transmission components. The chain drives the multiple sets of transmission components to rotate synchronously. The drive wheel in the transmission component drives the rotating ring to rotate.

[0044] This solution employs a motor coupled with multiple sets of transmission components for a stable power output, providing reliable rotational driving force to the rotating ring and ensuring the continuous and stable operation of the material feeding and correction unit. The transmission components are evenly distributed along the circumference of the rotating ring, synchronously driving the ring at multiple points, resulting in uniform force distribution and smooth rotation, avoiding uneven loading, jamming, and wobbling. Furthermore, the multiple sets of transmission components are synchronously driven by chains, ensuring high transmission accuracy and good synchronization, guaranteeing consistent speeds of all drive wheels, further improving the coaxiality and stability of the rotating ring.

[0045] A feeding and unloading method for a paper film laminating machine, applied to the feeding and unloading mechanism of a paper film laminating machine as described above, includes the following steps:

[0046] Paper and film are conveyed through paper feeding unit and film feeding unit respectively. During the conveying process, source correction unit is used to correct the deviation of paper and film.

[0047] When paper or film passes between two alignment rollers, if a deviation occurs, the side of the paper or film presses against one alignment roller, causing the alignment roller to slide outward along the alignment rod via the connecting plate and compress the elastic element. Under the elastic restoring force of the elastic element, the alignment roller generates a force that pushes the paper or film towards the other alignment roller, thereby correcting the conveying path of the paper or film and keeping it straight.

[0048] After the paper and film have been corrected, they enter the lamination unit, where they are pressed together to form the laminated product.

[0049] After lamination, the product is conveyed to the unloading unit for unloading.

[0050] This method clearly defines that paper and film are conveyed through corresponding feeding units, and the source correction unit simultaneously completes the correction. The design of the bonding mechanism ensures that correction and conveying are synchronized, avoiding misalignment caused by the separation of correction and conveying. When the paper / film deviates, a closed-loop process is achieved through side-pressing the correction roller, the connecting plate sliding along the correction rod, compressing the elastic element, and the elastic restoring force pushing the correction roller back the material. This achieves immediate correction of the deviation, ensuring that the paper and film are always conveyed straight, locking in the alignment accuracy from the source, providing a reliable prerequisite for subsequent accurate lamination, reducing lamination defects caused by source deviation, and thus improving the product pass rate and quality. Attached Figure Description

[0051] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0052] Figure 1 This is a schematic diagram of the structure of one embodiment of the loading and unloading mechanism of a paper film laminating machine according to the present invention;

[0053] Figure 2 This is a schematic diagram of the source correction unit and the feeding conveyor frame in an embodiment of the feeding mechanism of a paper film laminating machine according to the present invention;

[0054] Figure 3 for Figure 1 A magnified view of a section at point A in the middle;

[0055] Figure 4 for Figure 1 A magnified view of a section at point B in the middle;

[0056] Figure 5 This is a schematic diagram of another embodiment of the loading and unloading mechanism of a paper film laminating machine according to the present invention;

[0057] Figure 6 for Figure 5 A magnified view of a section at point C;

[0058] Figure 7 This is a right view of the feeding and correcting unit in an embodiment of the feeding and unloading mechanism of a paper film laminating machine according to the present invention.

[0059] The attached diagram shows the markings and corresponding component names:

[0060] 1. Paper unwinding roller; 2. Film unwinding roller; 3. Feeding conveyor frame; 4. Feeding conveyor roller; 5. Paper; 6. Film; 7. Source correction unit; 701. Correction frame; 702. Correction rod; 703. Correction spring; 704. Correction roller; 705. Connecting plate; 706. Stop block.

[0061] The laminating machine frame 8, first transmission roller 9, second transmission roller 10, third transmission roller 11, upper pressure roller 12, pressure roller shaft 121, lower pressure roller 13, laminating cylinder 14, guide groove 15, pressure plate 16, connecting rod 17, collar 18, adjusting spring 19;

[0062] Feeding conveyor frame 20, first feeding conveyor frame 200, second feeding conveyor frame 210;

[0063] 21. Feeding conveyor roller, 22. Feeding frame, 23. Feeding platform, 24. Feeding take-up roller, 25. Cutting frame, 26. Cutting cylinder, 27. Knife handle, 271. Cutting knife, 272. Mounting plate, 273. Guide rod, 274. Limiting head, 275. Pressing head, 276. Support block;

[0064] Material feeding and correction unit 28, vertical plate 281, base plate 282, rotating ring 283, support roller 284, motor 285, transmission wheel 286, drive wheel 287, chain 288, guide roller 289;

[0065] Product 29. Detailed Implementation

[0066] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0067] As one embodiment of this application, such as Figures 1-2 As shown, this embodiment provides a paper film laminating machine loading and unloading mechanism, including a loading unit, a laminating unit and an unloading unit. The loading unit includes a paper 5 loading unit for conveying paper 5 and a film 6 loading unit for conveying film 6. The laminating unit is used to press the conveyed paper 5 and film 6 together to form product 29.

[0068] Both the paper 5 feeding unit and the film 6 feeding unit include an unwinding roller, a feeding conveyor frame 3, a feeding conveying roller 4 set on the feeding conveyor frame 3, and a source correction unit 7 installed on the feeding conveyor frame 3. In this embodiment, the unwinding roller in the paper 5 feeding unit is a paper unwinding roller 1, and the unwinding roller in the film 6 feeding unit is a film unwinding roller 2.

[0069] Combination Figure 2 As shown, in this embodiment, the source correction unit 7 includes:

[0070] Two alignment brackets 701 are symmetrically arranged on both sides of the feeding conveyor frame 3 and fixed to the feeding conveyor frame 3 by bolts;

[0071] The correction rod 702 is installed on the inner side of each correction frame 701, so that the two correction rods 702 are arranged opposite each other and the correction rods 702 are perpendicularly connected to the correction frame 701.

[0072] A correction roller 704 is coaxially connected to a connecting plate 705. In this embodiment, the correction roller 704 and the connecting plate 705 are rotatably connected via a rotating shaft. The connecting plate 705 is slidably mounted on the correction rod 702, i.e., the connecting plate 705 has a through hole through which it passes over the outside of the correction rod 702. The correction rollers 704 on the two correction frames 701 are arranged facing each other to contact and guide the paper 5 or film 6 from both sides; and

[0073] An elastic element is connected between the connecting plate 705 and the straightening frame 701.

[0074] In one embodiment, such as Figure 2As shown, in this embodiment, the elastic element is a correction spring 703, which is sleeved on the correction rod 702. The two ends of the correction spring 703 abut against the correction frame 701 and the connecting plate 705, respectively. A stop block 706 is provided at the end of the correction rod 702 away from the correction frame 701. The stop block 706 is used to limit the sliding stroke of the connecting plate 705. In this embodiment, the stop block 706 is threadedly connected to the correction rod 702 for easy assembly. The diameter of the stop block 706 is larger than the diameter of the correction rod 702, which can limit the connecting plate 705 and prevent the connecting plate 705 from detaching from the correction rod 702.

[0075] In one embodiment, such as Figure 1 As shown, the laminating unit in this scheme includes a laminating frame 8 and a laminating roller group, an upper pressure roller 12 and a lower pressure roller 13 installed on the laminating frame 8;

[0076] The laminating roller assembly includes multiple transfer rollers for guiding the paper 5 and film 6 through the gap between the upper pressure roller 12 and the lower pressure roller 13. In this embodiment, the laminating roller assembly includes a first transfer roller 9, a second transfer roller 10, and a third transfer roller 11. The first transfer roller 9, the second transfer roller 10, and the third transfer roller 11 are arranged in a triangular pattern to tension and guide the paper 5 and film 6. In this embodiment, both ends of the laminating roller assembly and the lower pressure roller 13 are rotatably connected to the laminating frame 8, while both ends of the upper pressure roller 12 are vertically slidingly engaged with the laminating frame 8.

[0077] In this embodiment, a laminating cylinder 14 connected to the upper pressure roller 12 is installed on the laminating frame 8. The laminating cylinder 14 is used to drive the upper pressure roller 12 to rise and fall, so as to adjust the gap and clamping force between it and the lower pressure roller 13.

[0078] In one embodiment, combined Figure 1 and Figure 3 As shown, in this embodiment, the upper pressure roller 12 is coaxially connected to the end of the pressure roller shaft 121, and the pressure roller shaft 121 is vertically slidably engaged with the laminating frame 8; the output end of the laminating cylinder 14 is connected to the pressure plate 16, and the pressure plate 16 is vertically slidably engaged with the laminating frame 8. In this embodiment, a vertically arranged guide groove 15 is provided on the laminating frame 8, and a slider is fixed on the side of the pressure plate 16 facing the guide groove 15. The slider on the pressure plate 16 is embedded in the guide groove 15 and slidably engaged with the guide groove 15.

[0079] A connecting rod 17 is connected to the bottom of the pressure plate 16, and a collar 18 is connected to the bottom end of the connecting rod 17. The collar 18 is coaxially sleeved on the pressure roller shaft 121 of the upper pressure roller 12. In this embodiment, the inner diameter of the collar 18 is larger than the outer diameter of the pressure roller shaft 121 of the upper pressure roller 12, so that there is a gap between the collar 18 and the pressure roller shaft 121. In this embodiment, an adjusting spring 19 is connected to the top side of the pressure roller shaft 121 and the collar 18. The adjusting spring 19 can make the pressure roller shaft 121 move vertically, adapting to the adaptive dynamic adjustment during the transfer of paper 5 and film 6, ensuring that the clamping force between the upper pressure roller 12 and the lower pressure roller 13 is always uniform and stable, avoiding excessive pressure that damages the material or insufficient pressure that leads to loose lamination and delamination, especially suitable for the precise lamination requirements of thin materials.

[0080] In one embodiment, combined Figure 1 As shown, in this embodiment, the unloading unit includes an unloading conveyor frame 20, an unloading and winding roller 24 for winding up the laminated product 29, and a cutting assembly disposed at the front end of the unloading and winding roller 24 for cutting the laminated product 29. An unloading conveyor roller 21 is rotatably disposed on the unloading conveyor frame 20.

[0081] In this embodiment, the unloading unit also includes an unloading frame 22 and an unloading platform 23. The unloading platform 23 is located on the right side of the unloading frame 22. The unloading and winding roller 24 is installed on the unloading frame 22 and is used to wind up the laminated product 29. The unloading platform 23 is used to store the unloading and winding roller 24 that has wound up the product 29, which is convenient for use in subsequent processes.

[0082] In one embodiment, as in this embodiment, Figure 4 As shown, the cutting assembly includes a cutting frame 25, a cutting cylinder 26, a knife handle 27, a cutter 271, and a clamping component. The cutting frame 25 is connected to the unloading conveyor frame 20. The cylinder body of the cutting cylinder 26 is connected to the cutting frame 25. The knife handle 27 is connected to the output shaft of the cutting cylinder 26. The cutter 271 is connected to the knife handle 27. The width of the cutter 271 is greater than the width of the product 29, thereby facilitating the cutting of the product 29.

[0083] In this embodiment, the clamping component includes a mounting plate 272, a guide rod 273, a pressure head 275, and a limiting head 274. The limiting head 274 and the pressure head 275 are respectively connected to the top and bottom ends of the guide rod 273. In this embodiment, the limiting head 274 is threadedly connected to the top end of the guide rod 273. The pressure head 275 is frustum-shaped and is integrally formed with or threadedly connected to the guide rod 273. One end of the mounting plate 272 is vertically connected to the output shaft of the cutting cylinder 26, and the other end of the mounting plate 272 is a free end. The guide rod 273 vertically penetrates the mounting plate 272 and slides vertically with the mounting plate 272. The limiting head 274 can restrict the guide rod 273 from detaching from the mounting plate 272. In this embodiment, a through hole for the guide rod 273 to pass through is provided on the mounting plate 272, and the diameter of the limiting head 274 is larger than the diameter of the through hole on the mounting plate 272.

[0084] A compression spring is sleeved on the outside of the guide rod 273. The two ends of the compression spring abut against the mounting plate 272 and the pressure head 275, respectively. In its natural state, the bottom of the pressure head 275 is located below the cutter 271. Thus, when the cutting cylinder 26 drives the cutter 271 to move downward, the pressure head 275 can first contact the product 29 and flexibly press the product 29 under the elastic force of the compression spring. In this embodiment, a support block 276 is bolted to the unloading conveyor frame 20. The support block 276 is vertically aligned with the pressure head 275. When the pressure head 275 contacts the product 29, it is supported by the support block 276, ensuring the flatness and stability of the product 29. When the output shaft of the cutting cylinder 26 continues to extend downward, the mounting plate 272 will compress the compression spring. When the cutter 271 contacts the product 29 and cuts the product 29, the pressure head 275 and the product 29 are pressed together, thus ensuring the stability of the product 29 during the cutting process and improving the cutting quality.

[0085] In one embodiment, such as Figure 5 As shown, in this embodiment, the feeding unit also includes a feeding correction unit 28. The feeding conveyor frame 20 includes a first feeding conveyor frame 200 and a second feeding conveyor frame 210. The feeding correction unit 28 is located between the first feeding conveyor frame 200 and the second feeding conveyor frame 210.

[0086] like Figure 6 and Figure 7As shown, in this embodiment, the feeding correction unit 28 includes a vertical plate 281, a bottom plate 282, a rotating ring 283, and a driving assembly. The vertical plate 281 is vertically arranged, and the bottom plate 282 is connected to one side of the lower part of the vertical plate 281. The rotating ring 283 is located on the other side of the vertical plate 281, and a plurality of support rollers 284 are rotatably connected to one side of the vertical plate 281. In this embodiment, four support rollers 284 are provided. The four support rollers 284 are evenly distributed along the circumference of the rotating ring 283, and the four support rollers 284 are rotatably supported on the outside of the rotating ring 283. In this embodiment, the circumferential surface of the support roller 284 is provided with an annular groove along its axial direction, and the rotating ring 283 is embedded in the annular groove of the support roller 284. In this way, the support roller 284 can provide better limiting support for the rotating ring 283, and the rotating ring 283 can generate rotation.

[0087] In this embodiment, a plurality of guide rollers 289 are evenly distributed along the circumference of the rotating ring 283. The number of guide rollers 289 is even. In this embodiment, ten guide rollers 289 are provided. Two guide rollers 289 located on the same diameter form a pair of limiting guide structures. The distance between the two guide rollers 289 located on the same diameter is 1-3mm greater than the width of the laminated product 29. When the product 29 passes through the inner ring of the rotating ring 283, if a deviation occurs, the product 29 can contact the two guide rollers 289 on the same diameter, thereby correcting the deviation of the product 29 and ensuring that the product 29 can be transported flat before winding, which makes the product 29 more regular when wound up later.

[0088] In this embodiment, the guide roller 289 is rotatably connected to the rotating ring 283, which reduces the friction between the guide roller 289 and the product 29. The drive component in this embodiment is used to drive the rotating ring 283 to rotate. During the rotation of the rotating ring 283, multiple guide rollers 289 rotate together, so that multiple sets of guide rollers 289 participate in the guidance in sequence, avoiding long-term wear of the guide roller 289 in a single position, and making the force on the product 29 more uniform, so that the correction effect is continuous and stable.

[0089] In one embodiment, the guide roller can move radially and / or circumferentially along the rotating ring. Specifically, in this embodiment, the guide roller can move radially along the rotating ring. In this embodiment, multiple radial grooves (not shown in the figure) are provided on the rotating ring along its circumference. The number of radial grooves is the same as the number of guide rollers. A slider (not shown in the figure) is slidably fitted in the radial groove. The roller shaft of the guide roller is rotatably connected to the slider, so that the guide roller is slidably connected in the radial groove through the slider. A tension adjusting spring is connected between the slider and the end of the radial groove. The slider of the guide roller is installed in the radial groove on the rotating ring and can slide along the diameter direction of the rotating ring (i.e., the direction close to or away from the center). The sliding direction of the guide roller is always basically consistent with the force direction of the product (perpendicular to the product direction).

[0090] In this embodiment, the structure enables the guide roller to radially adaptively adjust according to the product width, conveying position offset, and tension changes, improving its adaptability to products of different specifications. The tension adjusting spring provides flexible pre-tension to the guide roller, allowing it to flexibly limit and guide the product, avoiding rigid contact that could cause scratches, wrinkles, or stretching deformation on the product surface, effectively protecting thin paper film composite products. The sliding direction of the guide roller is consistent with the direction of the product offset force, allowing it to promptly retract and reset according to the product offset trend, resulting in rapid correction response and smooth operation, further improving the stability of material feeding correction and the quality of the finished winding product. In one embodiment, the guide roller can move radially and / or circumferentially along the rotating ring. Specifically, in this embodiment, the guide roller can move circumferentially along the rotating ring. An arc-shaped guide rail is provided on the rotating ring along its circumference, and the roller shaft of the guide roller is slidably connected to the arc-shaped guide rail via a slider. The roller shaft of the guide roller is rotatably connected to the slider. A reset spring is provided between the slider and the arc-shaped guide rail to keep the guide roller in its initial position.

[0091] In this embodiment, the sliding cooperation between the arc-shaped guide rail and the slider allows the guide roller to move smoothly along the set trajectory without jamming, improving the stability of the guiding and correction process. The reset spring enables the guide roller to automatically and quickly reset after being displaced by the product after lamination, ensuring that the guide roller continuously and stably limits and corrects the product, ensuring the continuous and reliable operation of the feeding and correction unit. At the same time, the elastic structure of the arc-shaped guide rail and the reset spring enables flexible guidance, avoiding rigid contact that could cause scratches, wrinkles, or stretching deformation on the product surface, thus improving the quality of the finished product winding.

[0092] Furthermore, when the product undergoes serpentine swaying or the rotating ring rotates to correct its alignment, the wrap angle changes, the force on some guide rollers increases, and the guide rollers slide tangentially, automatically adjusting their position on the circumference to ensure that the product always has a suitable contact angle with each guide roller during the correction process.

[0093] In one embodiment, the guide roller can move radially and / or circumferentially along the rotating ring. Specifically, in this embodiment, the guide roller can move radially and circumferentially along the rotating ring. In this embodiment, the guide roller is connected to the rotating ring via a cross-slider mechanism, and the roller shaft of the guide roller is rotatably connected to the cross-slider mechanism. The cross-slider mechanism includes a lower base, which is a plate-shaped structure and is fixedly connected to the rotating ring. The top surface of the lower base is provided with an arc-shaped guide groove extending circumferentially along the rotating ring.

[0094] The middle slide plate is a plate-shaped structure. Its bottom surface is provided with an arc-shaped guide rail that slides in conjunction with the arc-shaped guide groove, allowing the middle slide plate to slide freely along the circumference of the rotating ring. The top surface of the middle slide plate is provided with a radial groove that extends radially along the rotating ring. The radial groove and the arc-shaped guide groove are perpendicular to each other in space.

[0095] The upper slider is a block structure with a radial guide rail on its bottom surface that slides along a radial groove, allowing the upper slider to slide freely along the radial direction of the rotating ring. The top surface of the upper slider has a guide roller mounting part for mounting guide rollers; in this design, the guide rollers are rotatably connected to the guide roller mounting part on the top surface of the upper slider. Return springs are connected between the radial groove on the upper slider and the middle slider, and between the middle slider and the arc-shaped guide groove on the lower base.

[0096] This embodiment enables the guide roller to slide freely in both the radial and circumferential directions of the rotating ring, in order to adapt to tension changes in the laminated product and path deviation during the correction process.

[0097] In this embodiment, the cross-slider mechanism enables the guide roller to have both radial and tangential adaptive adjustment capabilities. It can flexibly adjust its position in two degrees of freedom according to the conveying tension, positional offset, and running posture of the laminated product, making it more adaptable. The bidirectional sliding structure can effectively buffer the pulling, impact, and shaking generated during the conveying and correction process of the product, avoiding wrinkles, scratches, or stretching deformation of thin paper film composite products caused by rigid constraints, and protecting the surface quality of the product. At the same time, the cross-slider mechanism moves smoothly and guides precisely, which can prevent the guide roller from jamming or swaying during the movement, ensuring the stability and reliability of the feeding and correction process, and improving the neatness of the finished product winding and the overall production stability.

[0098] In one embodiment, such as Figure 6 and Figure 7 As shown, in this embodiment, the drive assembly includes a motor 285 and multiple sets of transmission components. The motor 285 is mounted on the base plate 282, and the transmission components are rotatably connected to the vertical plate 281.

[0099] The transmission components include a transmission wheel 286 and a drive wheel 287 coaxially connected, and a motor 285 is connected to one of the transmission components. In this embodiment, there are four sets of transmission components, which are evenly distributed along the circumference of the rotating ring 283. A chain 288 is provided between the transmission wheels 286 in the four sets of transmission components. The chain 288 drives the multiple sets of transmission components to rotate synchronously. The drive wheel 287 in the transmission components drives the rotating ring 283 to rotate. In this embodiment, the drive wheel 287 and the rotating ring 283 are driven to rotate by friction. The drive wheel 287 and the rotating ring 283 are made of materials with a high coefficient of friction, such as rubber for the drive wheel 287 and a frosted surface for the rotating ring 283.

[0100] In another embodiment, a gear meshing drive structure can also be used between the drive wheel 287 and the rotating ring 283. By machining an annular gear ring on the outer side of the rotating ring 283 in the circumferential direction, the drive wheel 287 adopts a gear that meshes with the annular gear ring (i.e., the drive wheel 287 is a gear structure). The gear drive wheel 287 of multiple transmission components meshes with the annular gear ring of the rotating ring 283 one by one. The motor 285 drives multiple transmission components to rotate synchronously through the chain 288, and then drives the rotating ring 283 to rotate through the meshing of the gear and the gear ring.

[0101] In another embodiment, this embodiment discloses a feeding and unloading method for a paper film laminating machine, applied to a feeding and unloading mechanism of a paper film laminating machine as described in the above embodiment, including the following steps:

[0102] Paper 5 and film 6 are conveyed through paper 5 feeding unit and film 6 feeding unit respectively. During the conveying process, the source correction unit 7 is used to correct the deviation of paper 5 and film 6 at the source. Specifically: paper 5 raw material is put into paper unwinding roller 1 of paper 5 feeding unit, and film 6 raw material is put into film unwinding roller 2 of film 6 feeding unit. The equipment is started, and the unwinding roller unwinds at a uniform speed. Paper 5 and film 6 are conveyed along their respective feeding conveyor frame 3. The feeding conveyor roller 4 rotates synchronously to provide stable conveying power for paper 5 and film 6 and ensure uniform conveying speed. At the same time, the source correction unit 7 is started synchronously to ensure that paper 5 and film 6 enter the correction working state at the beginning of the conveying process, avoiding the risk of deviation from the source of conveying.

[0103] When the paper 5 or film 6 passes between the two correction rollers 704, if a deviation occurs, the side of the paper 5 or film 6 presses against one correction roller 704, causing the correction roller 704 to slide outward along the correction rod 702 via the connecting plate 705 and compress the elastic element. Under the elastic restoring force of the elastic element, the correction roller 704 generates a force that pushes the paper 5 or film 6 towards the other correction roller 704, thereby correcting the conveying path of the paper 5 or film 6 and keeping it straight. Specifically, the paper 5 and film 6 pass between the two symmetrical correction rollers 704 of their respective source correction units 7. Under the pre-tightening force of the correction spring 703, the two correction rollers 704 slightly adhere to the two sides of the material, keeping the initial conveying trajectory of the material straight.

[0104] When the paper 5 or film 6 shifts left or right due to unwinding deviation, conveying vibration, etc., the material side on the shifted side will squeeze the corresponding side correction roller 704, forcing the correction roller 704 to slide away from the material along the correction rod 702 through the connecting plate 705. At the same time, it compresses the elastic element (correction spring 703) sleeved on the correction rod 702. The elastic element generates elastic restoring force after being compressed.

[0105] Under the action of elastic restoring force, the correction roller 704 generates a reverse thrust in the direction of the material, pushing the deviated paper 5 or film 6 towards the correction roller 704 on the other side until both sides of the material are slightly in contact with the two correction rollers 704, restoring it to the preset conveying trajectory and achieving instant correction; at the same time, the stop 706 at the end of the correction rod 702 restricts the excessive sliding of the connecting plate 705, preventing the correction roller 704 from detaching from the material or the elastic element from being damaged by excessive deformation, ensuring that the correction process is stable and controllable, and ultimately keeping the paper 5 and film 6 conveyed straight at all times.

[0106] After the correction, the paper 5 and film 6 enter the lamination unit, where the paper 5 and film 6 are pressed together to form the laminated product 29. Specifically, the paper 5 and film 6 after the source correction are simultaneously conveyed to the lamination unit. They are first guided step by step by multiple transmission rollers of the lamination roller group. The transmission rollers rotate at a uniform speed to further calibrate the material conveying trajectory, ensuring that the edges of the paper 5 and film 6 are accurately aligned and smoothly guided to the gap between the upper pressure roller 12 and the lower pressure roller 13.

[0107] Based on the thickness of paper 5 and film 6, the vertical position of upper pressure roller 12 is adjusted by laminating cylinder 14. Laminating cylinder 14 drives pressure plate 16 to slide vertically. Through connecting rod 17 and collar 18, pressure roller shaft 121 and upper pressure roller 12 are driven to rise and fall synchronously. The gap between upper pressure roller 12 and lower pressure roller 13 is adjusted (the gap is slightly larger than the total thickness of the material by 0.02-0.05mm). At the same time, the clamping force is adjusted (the clamping force is adjusted according to the thickness of the material).

[0108] Paper 5 and film 6 enter between upper pressure roller 12 and lower pressure roller 13, and are pressed together under the pressing force of upper pressure roller 12 to form laminated product 29. During the pressing process, the reserved gap between collar 18 and pressure roller shaft 121 is adapted to the slight radial offset of material transmission. Adjusting spring 19 adaptively extends and retracts to compensate for material thickness fluctuations, ensure uniform pressing force, and avoid material damage or loose lamination. The laminated product 29 is then conveyed to the unloading unit by subsequent transmission rollers of the lamination roller group.

[0109] After lamination, the product 29 is conveyed to the unloading unit for unloading. Specifically, after lamination, the product 29 is conveyed to the unloading unit and first smoothly transmitted by the unloading conveyor roller 21 on the unloading conveyor frame 20. The conveying speed is consistent with the output speed of the lamination unit to avoid pulling or wrinkling of the product 29.

[0110] Product 29 is transferred to the cutting assembly. The cutting cylinder 26 drives the knife holder 27 to move the cutter 271 vertically. At the same time, the mounting plate 272 moves down synchronously with the output shaft of the cutting cylinder 26. The pressure head 275 first contacts the surface of product 29 and flexibly presses product 29 under the elastic force of the compression spring to prevent product 29 from slipping during cutting. Then the cutter 271 continues to move down to complete the cutting of product 29. The cutting size is preset according to production requirements, and the cutting accuracy is ≤0.1mm.

[0111] After cutting, the product 29 is conveyed to the unloading and winding roller 24 via the unloading conveyor roller 21. The unloading and winding roller 24 rotates at a constant speed to wind the product 29 in an orderly manner. The winding tension can be adjusted according to the thickness of the product 29 to avoid deformation of the product 29 due to excessive winding or messy winding due to excessive loose winding. If the product 29 deviates during the conveying process, the unloading correction unit 28 is activated simultaneously. The drive component drives the rotating ring 283 to rotate. The guide roller 289 on the rotating ring 283 performs secondary dynamic correction on the product 29 to ensure that the product 29 is wound up smoothly, thus completing the entire unloading and loading process.

[0112] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A feeding and unloading mechanism for a paper film laminating machine, characterized in that, It includes a feeding unit, a laminating unit, and an unloading unit. The feeding unit includes a paper feeding unit for conveying paper and a film feeding unit for conveying film. The laminating unit is used to press the conveyed paper and film together to form a product. Both the paper feeding unit and the film feeding unit include an unwinding roller, a feeding conveyor frame, a feeding conveyor roller disposed on the feeding conveyor frame, and a source correction unit installed on the feeding conveyor frame; The source correction unit includes: Two alignment frames are symmetrically arranged on both sides of the feeding conveyor frame; A correction rod is installed on the inside of each of the correction frames; A web-aligning roller, coaxially connected to a connecting plate, the connecting plate being slidably mounted on a web-aligning rod; web-aligning rollers on two web-aligning frames are arranged facing each other, for contacting and guiding paper or film from both sides; and An elastic element is connected between the connecting plate and the alignment frame.

2. The loading and unloading mechanism of a paper film laminating machine according to claim 1, characterized in that, The elastic element is a correction spring, which is sleeved on the correction rod, and its two ends abut against the correction frame and the connecting plate, respectively.

3. The loading and unloading mechanism of a paper film laminating machine according to claim 1, characterized in that, The end of the correction rod away from the correction frame is provided with a stop block, which is used to limit the sliding stroke of the connecting plate.

4. The loading and unloading mechanism of a paper film laminating machine according to claim 1, characterized in that, The laminating unit includes a laminating frame and a laminating roller assembly, an upper pressure roller, and a lower pressure roller mounted on the laminating frame; The laminating roller assembly includes multiple transfer rollers for guiding paper and film into the gap between the upper pressure roller and the lower pressure roller; The laminating frame is equipped with a laminating cylinder connected to the upper pressure roller. The laminating cylinder is used to drive the upper pressure roller to rise and fall, so as to adjust the gap and clamping force between it and the lower pressure roller.

5. The loading and unloading mechanism of a paper film laminating machine according to claim 4, characterized in that, The upper pressure roller is coaxially connected to a pressure roller shaft at its end, and the pressure roller shaft is vertically slidably engaged with the laminating frame; the output end of the laminating cylinder is connected to a pressure plate, and the pressure plate is vertically slidably engaged with the laminating frame; a connecting rod is connected to the bottom of the pressure plate, and a collar is connected to the bottom end of the connecting rod, and the collar is coaxially sleeved on the pressure roller shaft of the upper pressure roller; an adjusting spring is connected to the top side of the pressure roller shaft and the collar.

6. The loading and unloading mechanism of a paper film laminating machine according to claim 1, characterized in that, The unloading unit includes an unloading conveyor frame, an unloading and winding roller for winding the laminated product, and a cutting assembly located at the front end of the unloading and winding roller for cutting the laminated product. The unloading conveyor frame is equipped with an unloading conveyor roller.

7. The loading and unloading mechanism of a paper film laminating machine according to claim 6, characterized in that, The cutting assembly includes a cutting frame, a cutting cylinder, a handle, a cutter, and a clamping component. The cutting frame is connected to the unloading conveyor frame, the cylinder body of the cutting cylinder is connected to the cutting frame, the handle is connected to the output shaft of the cutting cylinder, and the cutter is connected to the handle. The clamping component includes a mounting plate, a guide rod, a pressure head, and a limiting head. The limiting head and the pressure head are respectively connected to the top and bottom ends of the guide rod. One end of the mounting plate is perpendicularly connected to the output shaft of the cutting cylinder. The guide rod extends vertically through the mounting plate and slides vertically with the mounting plate. The limiting head can prevent the guide rod from detaching from the mounting plate. A compression spring is sleeved on the outside of the guide rod. The two ends of the compression spring abut against the mounting plate and the pressure head, respectively. In its natural state, the bottom of the pressure head is located below the cutter.

8. The loading and unloading mechanism of a paper film laminating machine according to claim 6, characterized in that, The unloading unit also includes an unloading correction unit, and the unloading conveyor frame includes a first unloading conveyor frame and a second unloading conveyor frame. The unloading correction unit is located between the first unloading conveyor frame and the second unloading conveyor frame. The feeding and correction unit includes a vertical plate, a base plate, a rotating ring, and a drive assembly. The vertical plate is vertically arranged, and the base plate is connected to the lower side of the vertical plate. The rotating ring is located on the other side of the vertical plate, and multiple support rollers are rotatably connected to one side of the vertical plate. The multiple support rollers are evenly distributed along the circumference of the rotating ring, and all the multiple support rollers are rotatably supported on the outside of the rotating ring. Multiple guide rollers are evenly distributed along the circumference of the rotating ring. The number of guide rollers is even, and the distance between two guide rollers located on the same diameter is 1-3 mm greater than the width of the laminated product. The guide roller is rotatably connected to the rotating ring, and the drive assembly is used to drive the rotating ring to rotate.

9. The loading and unloading mechanism of a paper film laminating machine according to claim 8, characterized in that, The drive assembly includes a motor and multiple sets of transmission components. The motor is mounted on the base plate, and the transmission components are rotatably connected to the vertical plate. The transmission component includes a transmission wheel and a drive wheel connected coaxially. The motor is connected to one of the transmission components. Multiple sets of transmission components are evenly distributed along the circumference of the rotating ring. A chain is provided between the transmission wheels in the multiple sets of transmission components. The chain drives the multiple sets of transmission components to rotate synchronously. The drive wheel in the transmission component drives the rotating ring to rotate.

10. A method for loading and unloading a paper film laminating machine, applied to the loading and unloading mechanism of a paper film laminating machine as described in any one of claims 1-9, characterized in that, Includes the following steps: Paper and film are conveyed through paper feeding unit and film feeding unit respectively. During the conveying process, source correction unit is used to correct the deviation of paper and film. When paper or film passes between two alignment rollers, if a deviation occurs, the side of the paper or film presses against one alignment roller, causing the alignment roller to slide outward along the alignment rod via the connecting plate and compress the elastic element. Under the elastic restoring force of the elastic element, the alignment roller generates a force that pushes the paper or film towards the other alignment roller, thereby correcting the conveying path of the paper or film and keeping it straight. After the paper and film have been corrected, they enter the lamination unit, where they are pressed together to form the laminated product. After lamination, the product is conveyed to the unloading unit for unloading.

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