Paper collecting mechanism of film laminating machine

Abstract

The utility model provides a paper collecting mechanism of a film laminating machine, which relates to the technical field of film laminating machines and comprises a rack, a paper collecting tube shaft, a driven chain wheel, a chain wheel spacer sleeve and a friction pressing sheet, the paper collecting cylinder shaft is rotationally connected to the rack; the chain wheel spacer sleeve, the driven chain wheel and the friction pressing piece are sequentially arranged at one end of the paper collecting barrel shaft from inside to outside, the driven chain wheel is rotationally connected to the driven chain wheel through the rotary driving unit, the friction pressing piece is transversely and movably connected to the paper collecting barrel shaft, the driven chain wheel abuts against the chain wheel spacer sleeve through the torsion adjusting unit, and the friction pressing piece is driven to rotate under the action of the torsion adjusting unit. The paper collecting drum shaft rotates through friction force among the chain wheel spacer sleeve, the driven chain wheel and the friction pressing piece. The paper collecting device has the advantages that the driven chain wheel is driven by the rotary driving unit to rotate, the paper collecting drum shaft is matched with the paper feeding rotating speed under the action of the torsion adjusting unit, the driven chain wheel can slip under the overload condition, rolled paper or films are prevented from being torn apart, and meanwhile the motor is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of laminating machines, in particular to a paper collecting mechanism of a laminating machine. Background Art

[0002] A paper laminating machine is a specialized device for laminating paper. The laminating material and paper material are pressed together by rubber rollers and heated rollers to form a paper-plastic composite product. Typically, the process involves the following steps: first, the paper material is conveyed to the laminating machine; second, the laminating material is heated by heated rollers and laminated to the paper material; then, the laminated product is compacted and conveyed; and finally, the laminated paper is cut and collected on the corresponding paper collection station. Currently, there is a situation where the paper does not need to be broken during the laminating process, resulting in a continuous lamination. In this case, the laminated end of the paper needs to be reeled up to avoid affecting subsequent lamination.

[0003] In order to realize the paper winding function in the prior art, a special paper winding mechanism is generally set at the paper outlet end of the laminating machine. During the paper collecting process, it is necessary to ensure that the rotation speed of the upper paper collecting and the rotation speed of the lower paper feeding are consistent, and the speed of the lower paper feeding is adjustable according to actual conditions. However, the current paper winding mechanism cannot achieve adjustable speed by driving the paper collecting drum shaft through the motor, resulting in the upper paper collecting rotation speed and the lower paper feeding rotation speed not being completely matched, which in turn causes the wound paper or film to be torn. At the same time, as the laminating paper is rolled more and more during the paper collecting process, the weight becomes heavier, which affects the rotation speed of the film collecting, which also causes the wound paper or film to be torn, and the motor mainboard may be burned due to excessive resistance to tearing the film. Utility Model Content

[0004] The technical problem to be solved by the present invention is that the paper or film is easily torn during the existing paper collection process. In order to overcome the defects of the above existing technologies, the present invention provides a method of driving a driven sprocket to rotate by a rotary drive unit, and achieving matching of the paper collection drum shaft and the paper feeding speed under the action of a torque adjustment unit. In addition, in the event of an overload, the driven sprocket can be made to slip, thereby preventing the rolled paper or film from being torn, and also protecting the motor.

[0005] For the purpose of this utility model, the following technical solutions are adopted:

[0006] The sprocket wheel is connected to the driven sprocket through the support gear of the frame, and the sprocket is fixed on the support gear of the frame, and the support gear is connected with the support gear of the frame to the support gear of the frame. This mechanism can drive the driven sprocket to rotate through the rotation drive unit, and under the action of the torque adjustment unit, the rotation speed of the paper receiving drum shaft is matched with the paper feeding speed, so as to better adapt to the paper feeding speed. At the same time, as the paper roll on the paper receiving drum shaft increases, the friction between the sprocket sleeve, the driven sprocket and the friction pressure plate is increased, thereby preventing the driven sprocket from slipping, and preventing the wound paper or film from being torn, and better protecting the motor.

[0007] Preferably, the rotary drive unit includes a drive bracket, a drive motor, a driving sprocket, and a synchronous chain; the drive motor is mounted on the outer wall of the frame via the drive bracket, with the output shaft of the drive motor arranged transversely, and the driving sprocket is connected to the output shaft of the drive motor; the driven sprocket is sleeved on the paper receiving drum shaft; and the synchronous chain is tensionedly connected to the driving sprocket and the driven sprocket. The output shaft of the drive motor passes transversely through the drive bracket to drive the driving sprocket to rotate, and under the action of the synchronous chain, the driving sprocket and the driven sprocket can achieve synchronous rotation, thereby causing the paper receiving drum shaft to perform paper receiving operation.

[0008] Preferably, the torque adjustment unit includes a compression spring and a knob; the knob is threadedly connected to the end of the paper receiving drum shaft, the compression spring is sleeved on the paper receiving drum shaft, and the two ends of the compression spring are respectively against the friction pressure plate and the knob, and the friction force between the friction pressure plate and the driven sprocket is adjustable through the action of the compression spring. Under the action of the compression spring, the driven sprocket can be brought into contact with the friction pressure plate and the sprocket stop sleeve, and the friction force generated between the driven sprocket and the friction pressure plate can transmit torque, thereby ensuring that the paper receiving drum shaft rotates synchronously with the driven sprocket. As the paper receiving drum shaft is wound more and more, the force required by the driven sprocket to drive the friction pressure plate to rotate becomes greater and greater, and the knob needs to be tightened to ensure that the driven sprocket does not slip. When the winding force is overloaded, the rotation of the driven sprocket cannot drive the friction pressure plate and the sprocket stop sleeve to rotate, thereby causing relative rotation between the driven sprocket and the friction pressure plate, thereby causing the driven sprocket to slip and still maintain torque, but cannot transmit torque to the friction pressure plate, thereby preventing the wound paper or film from being torn, and also protecting the motor mainboard, improving the smoothness and stability of paper collection.

[0009] Preferably, the sprocket sleeve is provided with a threaded hole extending radially therethrough; the outer wall of the paper receiving drum shaft is provided with a fixing groove; a fixing screw is threadedly connected to the threaded hole, and one end of the fixing screw is inserted through the threaded hole into the fixing groove, thereby achieving synchronous rotation of the sprocket sleeve and the paper receiving drum shaft. The fixing screw cooperates with the sprocket sleeve and the paper receiving drum shaft to achieve synchronous rotation.

[0010] Preferably, a limiting step is provided on the outer peripheral wall of the paper receiving drum shaft and located inside the sprocket stop sleeve; under the action of a compression spring, the sprocket stop sleeve abuts against the limiting step to achieve position limiting. The limiting step facilitates positioning of the sprocket stop sleeve, improving positioning accuracy and installation convenience.

[0011] Preferably, the frame includes a first vertical plate, a second vertical plate, and a plurality of connecting rods; the first and second vertical plates are bilaterally symmetrical and parallel; each connecting rod is transversely connected between the first and second vertical plates; one end of the paper receiving drum shaft passes through the first vertical plate and is transmission-connected to the drum shaft drive assembly; the second vertical plate is provided with a rotary support assembly; the other end of the paper receiving drum shaft is rotationally connected to the rotary support assembly. The rotary support assembly can support the paper receiving drum shaft and facilitate its rotation.

[0012] Preferably, a shaft flange is disposed transversely on the outer wall of the first riser; one end of the paper collection shaft passes through the first riser and the shaft flange and is transmission-connected to the shaft drive assembly; and the paper collection shaft is rotationally connected to the shaft flange via at least one bearing. The shaft flange facilitates transverse positioning of the paper collection shaft, while the bearing facilitates rotation of the paper collection shaft.

[0013] Preferably, the rotary support assembly includes a rotary support plate, a first cylindrical shaft bearing, and a second cylindrical shaft bearing; the rotary support plate is vertically arranged on the top of the second vertical plate, the first cylindrical shaft bearing and the second cylindrical shaft bearing are respectively rotatably connected to the top of the rotary support plate, and the first cylindrical shaft bearing and the second cylindrical shaft bearing are spaced and aligned front to back, the end of the paper receiving cylindrical shaft is located between the first cylindrical shaft bearing and the second cylindrical shaft bearing, and the outer peripheral wall of the paper receiving cylindrical shaft is rotated to abut against the outer peripheral wall of the first cylindrical shaft bearing and the outer peripheral wall of the second cylindrical shaft bearing. The first cylindrical shaft bearing and the second cylindrical shaft bearing on the rotary support plate facilitate the abutment of the paper receiving cylindrical shaft and also facilitate the rotation of the paper receiving cylindrical shaft.

[0014] To sum up, the advantage of the utility model is that the mechanism can drive the driven sprocket to rotate through the rotation drive unit, and under the action of the torque adjustment unit, the rotation speed of the paper collection drum shaft is matched with the paper feeding speed, so that it can better adapt to the paper feeding speed. At the same time, as the paper rolls on the paper collection drum shaft increase, the friction between the sprocket sleeve, the driven sprocket and the friction pressure plate can be increased, thereby preventing the driven sprocket from slipping, and preventing the wound paper or film from being torn, and better protecting the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the paper collection mechanism of the laminating machine of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the middle barrel shaft drive assembly of the utility model.

[0017] Figure 3 It is a cross-sectional view of the middle barrel shaft drive assembly of the utility model.

[0018] Figure 4 It is an exploded view of the middle barrel shaft drive assembly of the utility model.

[0019] Figure 5 It is a structural schematic diagram of the rotary support assembly of the utility model.

[0020] Description of reference numerals:

[0021] 1. Frame; 11. First vertical plate; 12. Second vertical plate; 13. Connecting rod; 14. Cylinder shaft flange; 2. Collection cylinder shaft; 20. Limiting step; 21. Fixing groove; 22. Bearing; 3. Rotation drive unit; 31. Drive bracket; 32. Drive motor; 33. Driving sprocket; 34. Driven sprocket; 35. Synchronous chain; 4. Torque adjustment unit; 41. Sprocket sleeve; 411. Threaded hole; 42. Friction pressure plate; 43. Compression spring; 44. Knob; 5. Rotation support assembly; 51. Rotation support plate; 52. First cylinder shaft bearing; 53. Second cylinder shaft bearing. DETAILED DESCRIPTION

[0022] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Those skilled in the art may adjust them as needed to suit specific application scenarios.

[0023] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0024] In the embodiments of the present application, unless otherwise specified or limited, the first feature is "on" the second feature.

[0025] "Below" or "below" can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, "above," "above," and "above" a first feature of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. "Below," "below," and "below" a first feature of a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0026] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 5 As shown, a paper delivery mechanism of a laminating machine includes a frame 1, a paper delivery drum shaft 2, a driven sprocket 34, a sprocket stopper sleeve 41 and a friction pressure plate 42; the paper delivery drum shaft 2 is horizontally distributed and rotatably connected to the frame 1;

[0028] The rack 1 comprises a first vertical plate 11 on the left side, a second vertical plate 12 on the right side and a plurality of connecting rods 13; the first vertical plate 11 and the second vertical plate 12 are symmetrically arranged in left and right and are arranged in parallel; each connecting rod 13 is horizontally connected between the first vertical plate 11 and the second vertical plate 12, a cylinder flange 14 is arranged on the outer wall of the first vertical plate 11 in a transverse direction; the left end of the paper collecting cylinder 2 is connected in transmission with the driven sprocket 34, the sprocket sleeve 41 and the friction pressing plate 42 through the first vertical plate 11 and the cylinder flange 14; and the paper collecting cylinder 2 is rotatably connected in the cylinder flange 14 through at least one bearing 22. The paper collecting cylinder 2 is conveniently positioned in a transverse direction through the cylinder flange 14, and the paper collecting cylinder 2 is conveniently rotated through the bearing 22. The second vertical plate 12 is provided with a rotary support assembly 5; the right end of the paper collecting cylinder 2 is rotatably connected to the rotary support assembly 5. The rotary support assembly 5 can support the paper collecting cylinder 2, and also facilitate rotation of the paper collecting cylinder 2. The sprocket sleeve 41, the driven sprocket 34 and the friction pressing plate 42 are arranged in sequence from inside to outside at one end of the paper collecting cylinder 2, the sprocket sleeve 41 is fixedly sleeved on the paper collecting cylinder 2; the driven sprocket 34 is rotatably connected to the driven sprocket 34 through the rotary driving unit 3, the friction pressing plate 42 is movably connected to the paper collecting cylinder 2 in a transverse direction, and the driven sprocket 34 is abutted against the sprocket sleeve 41 through the torsion adjusting unit 4, under the action of the torsion adjusting unit 4, the rotation of the paper collecting cylinder 2 is realized through the friction force between the sprocket sleeve 41, the driven sprocket 34 and the friction pressing plate 42, when the paper collecting cylinder 2 is overloaded, the driven sprocket 34 and the friction pressing plate 42 form a slip to make the driven sprocket 34 idle, and the torque cannot be transmitted to the paper collecting cylinder 2. The mechanism can drive the driven sprocket 34 to rotate through the rotary driving unit 3, and the rotation speed of the paper collecting cylinder 2 matches the paper feeding speed under the action of the torsion adjusting unit 4, so that the paper feeding speed can be better adapted, and the paper collecting cylinder 2 can be better protected without tearing the collected paper or film.

[0029] As Figures 1 to 4As shown, the rotation drive unit 3 includes a drive bracket 31, a drive motor 32, a driving sprocket 33, the aforementioned driven sprocket 34, and a synchronization chain 35. The drive motor 32 is mounted on the outer wall of the frame 1 via the drive bracket 31, with the output shaft of the drive motor 32 arranged horizontally. The driving sprocket 33 is connected to the output shaft of the drive motor 32. The driven sprocket 34 is sleeved on the paper delivery drum shaft 2. The synchronization chain 35 is tensioned and connected to the driving sprocket 33 and the driven sprocket 34. The output shaft of the drive motor 32 passes horizontally through the drive bracket 31 to drive the driving sprocket 33 to rotate. Under the action of the synchronization chain 35, the driving sprocket 33 and the driven sprocket 34 can achieve synchronous rotation, thereby causing the paper delivery drum shaft 2 to perform paper delivery.

[0030] like Figures 1 to 4 As shown, the torque adjustment unit 4 includes a compression spring 43 and a knob 44; the sprocket stopper 41 is fixedly mounted on the paper receiving drum shaft 2, and a radially extending threaded hole 411 is provided on the sprocket stopper 41; a waist-shaped fixing groove 21 is provided on the outer wall of the paper receiving drum shaft 2; the sprocket stopper 41 is threadedly connected to the threaded hole 411 by a fixing screw, and the inner end of the fixing screw is inserted into the fixing groove 21 through the threaded hole 411, thereby achieving synchronous rotation of the sprocket stopper 41 and the paper receiving drum shaft 2. The sprocket stopper 41 and the paper receiving drum shaft 2 are matched and driven by the fixing screw to achieve synchronous rotation. A limiting step 20 is provided on the outer peripheral wall of the paper receiving drum shaft 2 and located on the inner side of the sprocket stopper 41; under the action of the compression spring 43, the sprocket stopper 41 is abutted against the limiting step 20 to achieve positioning. The limiting step 20 facilitates the positioning of the sprocket stopper 41, improving the positioning accuracy and the convenience of installation.

[0031] like Figures 1 to 4As shown, the friction pressure plate 42 is axially movable and sleeved on the paper receiving drum shaft 2; the driven sprocket 34 is rotatably connected to the paper receiving drum shaft 2 and is located between the sprocket stopper 41 and the friction pressure plate 42, the knob 44 is threadedly connected to the end of the paper receiving drum shaft 2, and the compression spring 43 is sleeved on the paper receiving drum shaft 2, and the two ends of the compression spring 43 are respectively against the friction pressure plate 42 and the knob 44, and the friction force between the friction pressure plate 42 and the driven sprocket 34 is adjustable through the action of the compression spring 43. Under the action of the compression spring 43, the driven sprocket 34 can be brought into contact between the friction pressure plate 42 and the sprocket stopper 41. The friction force generated between the driven sprocket 34 and the friction pressure plate 42 can transmit torque, thereby ensuring that the paper receiving drum shaft 2 rotates synchronously with the driven sprocket 34. As the paper receiving drum shaft 2 is wound more and more, the force required by the driven sprocket 34 to drive the friction pressure plate 42 to rotate becomes greater and greater. It is necessary to tighten the knob 44 to increase the friction force to ensure that the paper receiving drum shaft 2 is driven to rotate and prevent it from slipping. When the winding force is too great, the rotation of the driven sprocket 34 cannot drive the friction pressure plate 42 and the sprocket stopper 41 to rotate, thereby causing relative rotation between the driven sprocket 34 and the friction pressure plate 42, thereby causing the driven sprocket 34 to slip while still maintaining torque, but unable to transmit torque to the friction pressure plate 42, thereby preventing the wound paper or film from being torn, protecting the motor mainboard, and improving the smoothness and stability of paper collection.

[0032] like Figures 1 to 5 As shown, the rotary support assembly 5 includes a rotary support plate 51, a first cylindrical shaft bearing 52, and a second cylindrical shaft bearing 53; the rotary support plate 51 is vertically arranged on the top of the second vertical plate 12, and the first cylindrical shaft bearing 52 and the second cylindrical shaft bearing 53 are respectively rotatably connected to the top of the rotary support plate 51, and the first cylindrical shaft bearing 52 and the second cylindrical shaft bearing 53 are spaced and aligned in front and back. The end of the paper receiving cylinder 2 is located between the first cylindrical shaft bearing 52 and the second cylindrical shaft bearing 53, and the outer peripheral wall of the paper receiving cylinder 2 is rotatably abutted against the outer peripheral wall of the first cylindrical shaft bearing 52 and the outer peripheral wall of the second cylindrical shaft bearing 53. The first cylindrical shaft bearing 52 and the second cylindrical shaft bearing 53 on the rotary support plate 51 facilitate the abutment of the paper receiving cylinder 2 and also facilitate the rotation of the paper receiving cylinder 2.

[0033] During use, the end of the paper coating is glued and fixed to the paper receiving drum shaft 2. At the beginning, the driven sprocket 34 is rotated by the driving motor 32 under the action of the synchronous chain 35, and the compression spring 43 is pressed against the friction pressure plate 42 by tightening the knob 44. As a result, the driven sprocket 34 is pressed against the friction pressure plate 42 and the sprocket stop sleeve 41 under the action of the compression spring 43. The friction between the driven sprocket 34, the friction pressure plate 42 and the sprocket stop sleeve 41 makes the paper receiving drum shaft 2 rotate synchronously with the driven sprocket 34. As the paper receiving drum shaft 2 is wound more and more, the force required for winding the paper receiving drum shaft 2 gradually increases, and the knob 44 needs to be tightened to further increase the friction force to ensure that the paper receiving drum shaft 2 rotates synchronously with the driven sprocket 34 to prevent slipping.

[0034] When the paper receiving drum shaft 2 is wound and flattened (equipment overloaded), the winding force is too large, resulting in the rotational force of the driven sprocket 34 being unable to drive the friction pressure plate 42 and the sprocket stop sleeve 41 to rotate synchronously, thereby causing relative rotation between the driven sprocket 34 and the friction pressure plate 42 to form slippage. In the slipping state, the driven sprocket 34 still maintains torque output, but cannot transmit torque to the friction pressure plate 42 and the sprocket stop sleeve 41, preventing the wound paper or film from being torn, and also protecting the motor mainboard, improving the smoothness and stability of paper collection.

[0035] The advantage of the present invention is that the mechanism can drive the driven sprocket 34 to rotate through the rotation drive unit 3, and under the action of the torque adjustment unit 4, the rotation speed of the paper receiving drum shaft 2 is matched with the paper feeding rotation speed, so that it can better adapt to the paper feeding rotation speed. At the same time, as the paper rolls on the paper receiving drum shaft 2 increase, the friction between the sprocket stop sleeve 41, the driven sprocket 34 and the friction pressure plate 42 can be increased, thereby preventing the driven sprocket 34 from slipping, and preventing the wound paper or film from being torn, and better protecting the motor.

[0036] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0037] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0038] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A paper delivery mechanism of a laminating machine, characterized in that: The invention comprises a frame (1), a paper receiving drum shaft (2), a driven sprocket (34), a sprocket stopper sleeve (41) and a friction pressure plate (42); the paper receiving drum shaft (2) is distributed in a transverse direction and is rotatably connected to the frame (1); the sprocket stopper sleeve (41), the driven sprocket (34) and the friction pressure plate (42) are sequentially arranged on one end of the paper receiving drum shaft (2) from the inside to the outside, and the sprocket stopper sleeve (41) is fixedly sleeved on the paper receiving drum shaft (2); the driven sprocket (34) is rotatably connected to the driven sprocket (34) through a rotary drive unit (3), and the friction pressure plate (42) is rotated to rotate. The sheet (42) is connected to the paper receiving drum shaft (2) by transverse movement, and the driven sprocket (34) is pressed against the sprocket stopper sleeve (41) through the torque adjustment unit (4). Under the action of the torque adjustment unit (4), the rotation of the paper receiving drum shaft (2) is achieved through the friction between the sprocket stopper sleeve (41), the driven sprocket (34) and the friction pressure sheet (42). When the paper receiving drum shaft (2) is overloaded, slippage occurs between the driven sprocket (34) and the friction pressure sheet (42), causing the driven sprocket (34) to idle, and the torque cannot be transmitted to the paper receiving drum shaft (2).

2. The paper delivery mechanism of the laminating machine according to claim 1, characterized in that: The rotary drive unit (3) comprises a drive bracket (31), a drive motor (32), a driving sprocket (33) and a synchronous chain (35); the drive motor (32) is arranged on the outer wall of the frame (1) through the drive bracket (31), and the output shaft of the drive motor (32) is arranged in a transverse direction, and the driving sprocket (33) is connected to the output shaft of the drive motor (32); the driven sprocket (34) is sleeved on the paper receiving drum shaft (2); and the synchronous chain (35) is tensioned and connected to the driving sprocket (33) and the driven sprocket (34).

3. The paper delivery mechanism of the laminating machine according to claim 2, characterized in that: The torque adjustment unit (4) comprises a compression spring (43) and a knob (44); the knob (44) is threadedly connected to the end of the paper receiving drum shaft (2); the compression spring (43) is sleeved on the paper receiving drum shaft (2), and the two ends of the compression spring (43) respectively abut against the friction pressure plate (42) and the knob (44), and the friction between the friction pressure plate (42) and the driven sprocket (34) is adjustable through the action of the compression spring (43).

4. The paper delivery mechanism of the laminating machine according to claim 3, characterized in that: A limiting step (20) is provided on the outer peripheral wall of the paper receiving drum shaft (2) and located inside the sprocket stop sleeve (41); under the action of a compression spring (43), the sprocket stop sleeve (41) abuts against the limiting step (20) to achieve limiting.

5. The paper delivery mechanism of the laminating machine according to claim 3 or 4, characterized in that: The sprocket stopper sleeve (41) is provided with a threaded hole (411) extending radially therethrough; the outer wall of the paper receiving drum shaft (2) is provided with a fixing groove (21); a fixing screw is threadedly connected to the threaded hole (411), and one end of the fixing screw is passed through the threaded hole (411) and inserted into the fixing groove (21), thereby achieving synchronous rotation of the sprocket stopper sleeve (41) and the paper receiving drum shaft (2).

6. The paper delivery mechanism of the laminating machine according to claim 1, characterized in that: The frame (1) comprises a first vertical plate (11), a second vertical plate (12) and a plurality of connecting rods (13); the first vertical plate (11) and the second vertical plate (12) are bilaterally symmetrical and arranged in parallel; each connecting rod (13) is horizontally connected between the first vertical plate (11) and the second vertical plate (12); one end of the paper receiving drum shaft (2) passes through the first vertical plate (11) and is transmission-connected to the drum shaft drive assembly; a rotating support assembly (5) is provided on the second vertical plate (12); the other end of the paper receiving drum shaft (2) is rotationally connected to the rotating support assembly (5).

7. The paper delivery mechanism of the laminating machine according to claim 6, characterized in that: A cylinder shaft flange (14) is transversely arranged on the outer wall of the first vertical plate (11); one end of the paper receiving cylinder shaft (2) passes through the first vertical plate (11) and the cylinder shaft flange (14) and is transmission-connected to the cylinder shaft drive assembly; and the paper receiving cylinder shaft (2) is rotationally connected to the cylinder shaft flange (14) via at least one bearing (22).

8. The paper delivery mechanism of the laminating machine according to claim 6, characterized in that: The rotary support assembly (5) comprises a rotary support plate (51), a first cylindrical shaft bearing (52) and a second cylindrical shaft bearing (53); the rotary support plate (51) is vertically arranged on the top of the second vertical plate (12); the first cylindrical shaft bearing (52) and the second cylindrical shaft bearing (53) are respectively rotatably connected to the top of the rotary support plate (51); the first cylindrical shaft bearing (52) and the second cylindrical shaft bearing (53) are spaced and aligned with each other in front and back; the end of the paper receiving cylindrical shaft (2) is located between the first cylindrical shaft bearing (52) and the second cylindrical shaft bearing (53), and the outer peripheral wall of the paper receiving cylindrical shaft (2) is rotated to abut against the outer peripheral wall of the first cylindrical shaft bearing (52) and the outer peripheral wall of the second cylindrical shaft bearing (53).

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