A paper roll packaging device

Abstract

The utility model provides a paper roll packaging device for the outer periphery of paper roll is covered with wrapping paper, and the paper roll packaging device comprises: paper roll drive arrangement, including elevating gear and drive roll, drive roll sets up along the axial direction of paper roll, drives paper roll to rotate, elevating gear sets up at the both sides of drive roll, including the article surface. Elevating gear includes first position and second position, in first position, the article surface is consistent with the height of drive roll, in second position, the article surface is higher than drive roll. The wrapping paper rest is spaced apart from the paper roll drive arrangement, including the mounting shaft, can rotatably set up on the wrapping paper rest, so that the wrapping paper can be pulled out by traction. Paper kicking machine, including paper kicking frame and swing arm assembly, paper kicking frame is located below drive roll, swing arm assembly rotatably installs in paper kicking frame, when elevating gear drives to be located in second position, swing arm assembly is driven to push paper roll and leave drive roll. The application can improve the efficiency of packaging work.

Description

Technical Field

[0001] This application relates to the field of paper roll production, and more specifically, to a paper roll packaging device. Background Technology

[0002] After paper rolls are produced, they need to be wrapped and packaged using stretch film or kraft paper. Stretch film and kraft paper provide some protection for the paper rolls. Products can only be sold after packaging. Kraft paper packaging, often done manually or with simple equipment, is inefficient, produces inconsistent packaging quality, and cannot meet the demands of large-scale production. With increasing industry competition and rising labor costs, traditional manual kraft paper wrapping methods are no longer sufficient for modern paper roll kraft paper packaging needs due to their slow speed, low efficiency, and uncontrollable packaging quality. Utility Model Content

[0003] This application provides a paper roll packaging device that can improve the efficiency of packaging operations.

[0004] Specifically, this application is implemented through the following technical solution: This application provides a paper roll packaging apparatus for wrapping a paper roll with packaging paper on its outer periphery. The paper roll packaging apparatus includes: A paper roll driving device includes a lifting device and a driving roller. The driving roller is arranged along the axial direction of the paper roll and is used to drive the paper roll to rotate along its axial direction. Along the axial direction of the paper roll, the lifting device is arranged on both sides of the driving roller. The lifting device includes a placement surface for placing the paper roll. The lifting device includes a first position and a second position. In the first position, the placement surface is at the same height as the driving roller and is used to place the paper roll on the driving roller. In the second position, the placement surface is higher than the driving roller. A packaging paper holder, spaced apart from the paper roll drive device, includes a mounting shaft for mounting the packaging paper roll and is rotatably mounted on the packaging paper holder so that the packaging paper can be pulled out by traction. A paper kicker includes a paper kicker frame and a rotating arm assembly. The paper kicker frame is located below the drive roller, and the rotating arm assembly is rotatably mounted on the paper kicker frame. When the lifting device is driven to the second position, the rotating arm assembly is driven to push the paper roll away from the drive roller.

[0005] Optionally, the rotating arm assembly includes a rotating arm and a rotating arm drive cylinder. The rotating arm is rotatably connected to the paper kicker, and the rotating arm drive cylinder is connected to the rotating arm via a connecting rod for driving the rotating arm to push the paper roll.

[0006] Optionally, the end of the rotating arm is configured to contact the paper roll, and a roller is mounted on the end of the rotating arm.

[0007] Optionally, the rotating arms include multiple arms, and are arranged parallel to each other along the axial direction of the paper roll; and / or The rotating arm is claw-shaped.

[0008] Optionally, the lifting device includes an air spring and a platform, the top surface of which is the placement surface and is installed above the air spring. The air spring is used to expand or contract to drive the platform to rise or fall.

[0009] Optionally, the lifting device further includes a limiting slide rail arranged along the lifting direction, and the platform is mounted on the limiting slide rail by a slider.

[0010] Optionally, the packaging paper holder further includes: A vertical mounting plate is vertically disposed between the mounting shaft and the paper roll drive device; A guide wheel, rotatably mounted on the vertical mounting plate and positioned above the mounting shaft, is used for the packaging paper to extend into the paper roll after passing around it; A pressing mechanism, mounted on the vertical mounting plate, includes a pressing cylinder and a pressing block. The pressing block is mounted on the movable end of the pressing cylinder. The cylinder is configured to drive the pressing block to press the packaging paper, which passes around the guide wheel, onto the guide wheel or to release the packaging paper from the guide wheel.

[0011] Optionally, the mounting shaft includes a first mounting shaft and a second mounting shaft that are horizontally spaced apart, with the first mounting shaft being closer to the paper roll drive device than the second mounting shaft; The guide wheel includes a first guide wheel and a second guide wheel, and the clamping mechanism includes a first clamping mechanism and a second clamping mechanism. The first clamping mechanism is used to clamp the first guide wheel, and the second clamping mechanism is used to clamp the second guide wheel. The first guide wheel is close to the plane where the mounting shaft is located relative to the second guide wheel. The first clamping mechanism is positioned directly opposite the first guide wheel, and the second clamping mechanism is positioned directly opposite the second guide wheel. The first guide wheel is used to bypass the packaging paper on the first mounting shaft, and the second guide wheel is used to bypass the packaging paper on the second mounting shaft.

[0012] Optionally, the drive roller includes a driving roller and a support roller arranged in parallel. The driving roller is driven by a drive motor through a chain transmission mechanism. The support roller is rotatably arranged to provide follow-up support when the driving roller drives the paper roll.

[0013] Optionally, the mounting shaft is an air-expanding shaft, configured to tighten or loosen the inner hole of the packaging paper roll by inflating or deflating air; one end of the air-expanding shaft is connected to a magnetic powder brake, configured to apply a controllable resistance torque to the rotation of the air-expanding shaft, providing tension to the packaging paper; and / or The surface on which the object is placed is V-shaped.

[0014] This application provides a paper roll packaging device, comprising: a paper roll driving device, a packaging paper shelf, and a paper kicker. The lifting platform has two modes: a "descending" mode corresponds to the packaging mode (the paper roll is supported and driven by the drive roller); and a "rising" mode corresponds to the unloading mode (the paper roll is lifted and disengaged from the drive mechanism). This simple vertical movement clearly distinguishes the two functional states, enabling the reuse of the workstation. Furthermore, if the paper roll remains on the drive roller, the paper kicker will be unable to operate or may cause structural interference with the roller. The lifting platform lifts the paper roll away from the roller, clearing all obstacles in the paper kicker path, allowing the rotating arm to complete the pushing action without obstruction. Finally, after being lifted, the paper roll is in a state of being gently supported by the placement surface, resulting in low friction. At this time, the paper kicker applies a small horizontal thrust, causing the paper roll to leave the workstation by rolling rather than sliding. This "rolling contact" greatly reduces the risk of surface damage to the outer packaging of the paper roll and the roll itself, ensuring the quality of the packaged product. Attached Figure Description

[0015] Figure 1 This is a side view of a paper roll packaging apparatus illustrated in an exemplary embodiment of this application; Figure 2 This is a front view of a paper roll packaging apparatus shown in an exemplary embodiment of this application; Figure 3 This is a top view of a paper roll packaging apparatus illustrated in an exemplary embodiment of this application; Figure 4 This is a front view of a paper roll driving device illustrated in an exemplary embodiment of this application; Figure 5 This is a side cross-sectional view of a paper roll driving device shown in an exemplary embodiment of this application; Figure 6 This is a side view of a paper roll driving device illustrated in an exemplary embodiment of this application; Figure 7 This is a top view of a paper roll driving device illustrated in an exemplary embodiment of this application; Figure 8 This is a front view of a paper kicker shown in an exemplary embodiment of this application; Figure 9 This is a side view of the paper kicker shown in an exemplary embodiment of this application; Figure 10This is a top view of a paper kicker shown in an exemplary embodiment of this application; Figure 11 This is a side view of a packaging paper shelf shown in an exemplary embodiment of this application; Figure 12 This is a front view of a packaging paper shelf shown in an exemplary embodiment of this application; Figure 13 This is a top view of a packaging paper shelf shown in an exemplary embodiment of this application.

[0016] The components are as follows: 100, paper roll drive device; 110, lifting device; 111, placement surface; 112, air spring; 113, placement platform; 114, limit slide rail; 120, drive roller; 121, active roller; 122, support roller; 200, packaging paper holder; 210, mounting shaft; 211, first mounting shaft; 212, second mounting shaft; 220, vertical mounting plate; 230, guide wheel; 231, first guide wheel; 232, second guide wheel; 240, pressing mechanism; 240a, pressing cylinder; 240b, pressing block; 241, first pressing mechanism; 242, second pressing mechanism; 250, magnetic powder brake; 300, paper kicker; 310, paper kicker frame; 320, rotating arm assembly; 321, rotating arm; 321a, roller; 322, rotating arm drive cylinder. Detailed Implementation

[0017] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0018] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0019] refer to Figure 1 , Figure 2 and Figure 3 This application provides a paper roll packaging apparatus for wrapping the outer periphery of a paper roll with packaging paper, such as kraft paper. The paper roll packaging apparatus includes: a paper roll drive device 100, a packaging paper shelf, and a paper kicker 300. Combined with... Figure 4 , Figure 5 , Figure 6 and Figure 7 The paper roll driving device 100 includes a lifting device 110 and a driving roller 120. The driving roller 120 is arranged along the axial direction of the paper roll and is used to drive the paper roll to rotate along its axial direction. Along the axial direction of the paper roll, the lifting device 110 is arranged on both sides of the driving roller 120. The lifting device 110 includes a placement surface 111 for placing the paper roll. The lifting device 110 has a first position and a second position. In the first position, the placement surface 111 is at the same height as the driving roller 120, used to place the paper roll on the driving roller 120. In the second position, the placement surface 111 is higher than the driving roller 120. A packaging paper shelf 200 is spaced apart from the paper roll driving device 100 and includes a mounting shaft 210. The mounting shaft 210 is used to mount the packaging paper roll and is rotatably mounted on the packaging paper shelf 200, so that the packaging paper can be pulled out by traction. Figure 8 , Figure 9 and Figure 10 The paper kicker 300 includes a paper kicker 310 and a rotating arm assembly 320. The paper kicker 310 is located below the drive roller 120. The rotating arm assembly 320 is rotatably mounted on the paper kicker 310. When the lifting device 110 is driven to the second position, the rotating arm assembly 320 is driven to push the paper roll away from the drive roller 120.

[0020] Firstly, this device replaces traditional manual labor with mechanical automation. The specific workflow includes hoisting or placing the paper roll to be packaged onto the placement surface 111 of the lifting platform. Then, the front end of the packaging paper from the packaging paper holder 200 is manually pulled out and fixed to the surface of the paper roll. The lifting platform descends from the second position (high position) to the first position (low position), smoothly placing the paper roll onto the drive roller 120. The drive roller 120 starts, driving the paper roll to rotate through friction. The rotation of the paper roll continuously pulls out the packaging paper from the mounting shaft 210 of the paper holder, winding it around the outer circumference of the paper roll. After the packaging meets the predetermined requirements, the paper is cut manually or automatically. After packaging is completed, the lifting platform rises from the first position (low position) to the second position (high position), lifting the packaged paper roll as a whole, completely disengaging it from the drive roller 120. This is a prerequisite for coordination, creating an interference-free space for the paper-kicking action. After the lifting platform reaches its designated position, the rotating arm assembly 320 of the paper-kicking machine 300, driven by a cylinder, flips upward from its concealed position (below the drive roller 120). The rotating arm 321 contacts the paper roll, and under continuous thrust, smoothly pushes the paper roll away from the placement surface 111 of the lifting platform, completing the automatic unloading. After the paper-kicking action is completed, the paper-kicking rotating arm 321 retracts to its concealed position, and the lifting platform awaits the loading of the next paper roll, beginning a new work cycle.

[0021] The lifting platform of this application has a "descending" mode corresponding to the packaging mode (the paper roll is supported and driven by the drive roller 120); and a "rising" mode corresponding to the unloading mode (the paper roll is lifted and disengaged from the drive mechanism). This simple vertical movement clearly distinguishes the two functional states, realizing the reuse of the workstation. Furthermore, if the paper roll remains on the drive roller 120, the paper ejector 300 will be unable to operate, or it may cause structural interference with the roller. The lifting platform lifts the paper roll away from the roller, clearing all obstacles in the ejection path, allowing the rotating arm 321 to complete the pushing action without obstruction. Finally, after the paper roll is lifted, it is in a state of being gently supported by the placement surface 111, with low friction. At this time, the paper ejector 300 applies a small horizontal thrust, which allows the paper roll to leave the workstation by rolling rather than sliding. This "rolling contact" greatly reduces the risk of surface damage to the outer packaging of the paper roll and the roll itself, ensuring the quality of the packaged product.

[0022] Combination Figure 9 and Figure 10 In one embodiment, the rotating arm assembly 320 includes a rotating arm 321 and a rotating arm drive cylinder 322. The rotating arm 321 is rotatably connected to the paper kicker 310, and the rotating arm drive cylinder 322 is connected to the rotating arm 321 via a connecting rod, used to drive the rotating arm 321 to push the paper roll. Using the rotating arm drive cylinder 322 as a power source automates the paper kicking action, eliminating the need for manual intervention, improving efficiency, and reducing labor intensity. Connecting the cylinder and the rotating arm 321 via a linkage mechanism efficiently and reliably converts the linear motion of the cylinder piston into the rotational oscillation of the rotating arm 321. This structure typically provides a large torque, ensuring sufficient force to push the heavy paper roll. Furthermore, the linkage mechanism has a simple structure and good rigidity, making the movement of the rotating arm 321 smoother and more controllable, avoiding sudden impacts.

[0023] In one embodiment, the end of the rotating arm 321 is configured to contact the paper roll, and a roller 321a is mounted on the end of the rotating arm 321. The friction between the rotating arm 321 and the paper roll is designed as rolling friction. When the rotating arm 321 lifts and pushes the paper roll, the roller 321a at the end rolls accordingly, greatly reducing the friction with the outer kraft paper of the paper roll packaging, effectively preventing scratches or wear on the packaging surface during kicking, and ensuring the appearance quality of the finished product. However, the length of the arrangement of multiple rotating arms 321 is less than the length of the paper roll to avoid interference with the lifting device 110.

[0024] In one embodiment, the rotating arms 321 comprise multiple arms and are arranged parallel to the axial direction of the paper roll. For paper rolls with a large axial length, the thrust of a single rotating arm 321 may be uneven, easily causing the paper roll to deflect or jam during ejection. Arranging multiple rotating arms 321 parallel to the axial direction of the paper roll can provide a uniform and stable thrust along the length of the paper roll, ensuring that the paper roll is pushed away from the workstation smoothly and straight, thus improving the reliability of the operation.

[0025] In another embodiment, the rotating arm 321 is claw-shaped. The claw-shaped design (generally referring to the rotating arm 321 having a certain curved shape or opening) is mainly to avoid components such as the drive roller 120. It allows the rotating arm 321 to avoid interference with these fixed components during rising and movement, ensuring that the device can be compactly designed while completing the intended paper-kicking function.

[0026] Combination Figure 5 In one embodiment, the lifting device 110 includes an air spring 112 and a platform 113. The top surface of the platform 113 is a placement surface 111 and is mounted above the air spring 112. The air spring 112 expands or contracts to raise or lower the platform 113. The air spring 112 itself has certain buffering and shock absorption characteristics, providing a gentle contact during the lifting and lowering of the paper roll, reducing the impact on the paper roll and equipment. Furthermore, the air spring 112 can provide a large lifting force, making it suitable for carrying heavy paper rolls.

[0027] Combination Figure 6 In one embodiment, the lifting device 110 further includes a limiting slide rail 114 arranged along the lifting direction, and the platform 113 is mounted on the limiting slide rail 114 via a slider. The cooperation between the limiting slide rail 114 and the slider ensures that the platform 113 can only move in a preset vertical direction during the lifting process, effectively preventing the platform 113 from swaying or tilting back and forth or left and right. This structure ensures that the platform 113 can accurately stop at the "first position" (packaging position) and the "second position" (kick-out position), improving the repeatability and reliability of the equipment. Furthermore, the slide rail bears the lateral force that may be generated by the weight of the paper roll, avoiding the bending that may occur when the air spring 112 is under force alone, and extending the service life of the air spring 112.

[0028] Combination Figure 11 , Figure 12 and Figure 13The packaging paper holder 200 also includes a vertical mounting plate 220, guide wheels 230, and a pressing mechanism 240. The vertical mounting plate 220 is vertically arranged between the mounting shaft 210 and the paper roll drive device 100. The guide wheels 230 are rotatably mounted on the vertical mounting plate 220 and are positioned above the mounting shaft 210, allowing the packaging paper to pass around and extend into the paper roll. The pressing mechanism 240 is mounted on the vertical mounting plate 220 and includes a pressing cylinder 240a and a pressing block 240b. The pressing block 240b is mounted on the movable end of the pressing cylinder 240a. The cylinder is configured to drive the pressing block 240b to press the packaging paper that has passed around the guide wheel 230 onto the guide wheel 230 or release the packaging paper from the guide wheel 230. When packaging is completed and the packaging paper is manually cut, the pressing cylinder 240a can immediately drive the pressing block 240b to firmly press the end of the packaging paper onto the guide wheel 230. This effectively prevents the packaging paper from shrinking due to elasticity or tension, ensuring that the paper end is always in an easily accessible position, preparing for the rapid start of the next packaging cycle, and is key to achieving continuous, efficient, and automated packaging.

[0029] Combination Figure 1 and Figure 11 In one embodiment, the mounting shaft 210 includes a first mounting shaft 211 and a second mounting shaft 212, which are horizontally spaced apart. The first mounting shaft 211 is closer to the paper roll drive device 100 than the second mounting shaft 212. The guide wheel 230 includes a first guide wheel 231 and a second guide wheel 232. The clamping mechanism 240 includes a first clamping mechanism 241 and a second clamping mechanism 242. The first clamping mechanism 241 clamps the first guide wheel 231, and the second clamping mechanism 242 clamps the second guide wheel 232. The first guide wheel 231 is closer to the plane of the mounting shaft 210 than the second guide wheel 232. The first clamping mechanism 241 is positioned directly opposite the first guide wheel 231, and the second clamping mechanism 242 is positioned directly opposite the second guide wheel 232. The first guide wheel 231 is used to bypass the packaging paper on the first mounting shaft 211, and the second guide wheel 232 is used to bypass the packaging paper on the second mounting shaft 212. This embodiment provides two flexibly selectable packaging material mounting stations by setting up a first mounting shaft 211 and a second mounting shaft 212 arranged horizontally at intervals, and equipped with independent guide wheels 230 and clamping mechanisms 240. The first mounting shaft 211 station (closer to the paper roll drive device 100) is more suitable for packaging materials with smaller roll diameters; the second mounting shaft 212 station can provide space for packaging material rolls with larger diameters and heavier weights. Operators can flexibly choose the appropriate station for clamping according to the specifications of the packaging materials required for current production, enabling a single machine to meet a wider range of production needs.

[0030] Combination Figure 5 , Figure 6 and Figure 7In one embodiment, the drive roller 120 includes a driving roller 121 and a support roller 122 arranged in parallel. The driving roller 121 is driven by a drive motor through a chain transmission mechanism; the support roller 122 is rotatably arranged to provide follow-up support when the driving roller 121 drives the paper roll. The driving roller 121 is driven by a motor and is the power source; the support roller 122 is the driven component and can rotate freely. The parallel arrangement of the two rollers forms a stable support surface, ensuring that the paper roll is subjected to uniform force and runs smoothly during rotation. The arrangement of the two rollers increases the contact wrap angle between the paper roll and the drive system, thereby enhancing the friction between the drive roller 120 and the paper roll, effectively preventing slippage and ensuring the stability of the paper roll speed during the packaging process.

[0031] Combination Figure 13 In one embodiment, the mounting shaft 210 is an air-expanding shaft, configured to tighten or loosen the inner hole of the packaging paper roll by inflating or deflating air. One end of the air-expanding shaft is connected to a magnetic powder brake 250, configured to apply a controllable resistance torque to the rotation of the air-expanding shaft, providing tension to the packaging paper. The air-expanding shaft enables rapid clamping and unloading of the packaging material roll through inflation and deflation, simplifying operation. The magnetic powder brake 250 provides precise, stable, and linearly adjustable braking torque. The magnetic powder brake 250 applies controllable resistance to the air-expanding shaft (i.e., the packaging material roll), ensuring the packaging paper remains taut when pulled out. This is a core technological guarantee for achieving tight and flat packaging quality, preventing looseness or wrinkling.

[0032] Combination Figure 5 In one embodiment, the placement surface 111 is a V-shaped surface. The V-shaped surface has a natural centering function for the cylindrical paper roll, which facilitates quick positioning when the paper roll is placed manually or mechanically, ensuring that the paper roll is located at the center of the drive roller 120.

[0033] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A paper roll packaging device, characterized in that, The paper roll packaging device is used to wrap the outer periphery of a paper roll with packaging paper, and includes: A paper roll driving device (100) includes a lifting device (110) and a driving roller (120). The driving roller (120) is arranged along the axial direction of the paper roll and is used to drive the paper roll to rotate along its axial direction. Along the axial direction of the paper roll, the lifting device (110) is arranged on both sides of the driving roller (120). The lifting device (110) includes a placement surface (111) for placing the paper roll. The lifting device (110) includes a first position and a second position. In the first position, the placement surface (111) is at the same height as the driving roller (120) and is used to place the paper roll on the driving roller (120). In the second position, the placement surface (111) is higher than the driving roller (120). A packaging paper holder (200) is spaced apart from the paper roll drive device (100) and includes a mounting shaft (210) for mounting the packaging paper roll and is rotatably mounted on the packaging paper holder (200) so that the packaging paper can be pulled out by traction. The paper kicker (300) includes a paper kicker (310) and a rotating arm assembly (320). The paper kicker (310) is located below the drive roller (120), and the rotating arm assembly (320) is rotatably mounted on the paper kicker (310). When the lifting device (110) is driven to the second position, the rotating arm assembly (320) is driven to push the paper roll away from the drive roller (120).

2. The paper roll packaging apparatus as described in claim 1, characterized in that, The rotating arm assembly (320) includes a rotating arm (321) and a rotating arm drive cylinder (322). The rotating arm (321) is rotatably connected to the paper kicker (310). The rotating arm drive cylinder (322) is connected to the rotating arm (321) via a connecting rod and is used to drive the rotating arm (321) to push the paper roll.

3. The paper roll packaging apparatus as described in claim 2, characterized in that, The end of the rotating arm (321) is configured to contact the paper roll, and a roller (321a) is mounted on the end of the rotating arm (321).

4. The paper roll packaging apparatus as described in claim 3, characterized in that, The rotating arms (321) include multiple arms and are arranged parallel to each other along the axial direction of the paper roll; and / or The rotating arm (321) is claw-shaped.

5. The paper roll packaging apparatus according to any one of claims 1 to 4, characterized in that, The lifting device (110) includes an air spring (112) and a platform (113). The top surface of the platform (113) is the placement surface (111) and is installed above the air spring (112). The air spring (112) is used to expand or contract to drive the platform (113) to rise or fall.

6. The paper roll packaging apparatus as described in claim 5, characterized in that, The lifting device (110) also includes a limiting slide rail (114) arranged along the lifting direction, and the platform (113) is mounted on the limiting slide rail (114) by a slider.

7. The paper roll packaging apparatus according to any one of claims 1 to 4, characterized in that, The packaging paper shelf (200) also includes: A vertical mounting plate (220) is vertically disposed between the mounting shaft (210) and the paper roll drive device (100); A guide wheel (230) is rotatably mounted on the vertical mounting plate (220) and positioned above the mounting shaft (210) for the packaging paper to pass around and extend into the paper roll; A pressing mechanism (240), mounted on the vertical mounting plate (220), includes a pressing cylinder (240a) and a pressing block (240b). The pressing block (240b) is mounted on the movable end of the pressing cylinder (240a). The cylinder is configured to drive the pressing block (240b) to press the packaging paper around the guide wheel (230) onto the guide wheel (230) or to release the packaging paper from the guide wheel (230).

8. The paper roll packaging apparatus as described in claim 7, characterized in that, The mounting shaft (210) includes a first mounting shaft (211) and a second mounting shaft (212) that are horizontally spaced apart, with the first mounting shaft (211) being closer to the paper roll drive device (100) than the second mounting shaft (212). The guide wheel (230) includes a first guide wheel (231) and a second guide wheel (232). The clamping mechanism (240) includes a first clamping mechanism (241) and a second clamping mechanism (242). The first clamping mechanism (241) is used to clamp the first guide wheel (231), and the second clamping mechanism (242) is used to clamp the second guide wheel (232). The first guide wheel (231) is close to the plane of the mounting shaft (210) relative to the second guide wheel (232). The first clamping mechanism (241) is set directly opposite the first guide wheel (231), and the second clamping mechanism (242) is set directly opposite the second guide wheel (232). The first guide wheel (231) is used to bypass the packaging paper on the first mounting shaft (211), and the second guide wheel (232) is used to bypass the packaging paper on the second mounting shaft (212).

9. The paper roll packaging apparatus as described in claim 1, characterized in that, The drive roller (120) includes a drive roller (121) and a support roller (122) arranged in parallel. The drive roller (121) is driven by a drive motor through a chain transmission mechanism. The support roller (122) is rotatably arranged to provide follow-up support when the drive roller (121) drives the paper roll.

10. The paper roll packaging apparatus as claimed in claim 1, characterized in that, The mounting shaft (210) is an air-expanding shaft configured to tighten or loosen the inner hole of the packaging paper roll by inflating or deflating air; one end of the air-expanding shaft is connected to a magnetic powder brake (250), which is configured to apply a controllable resistance torque to the rotation of the air-expanding shaft, providing tension to the packaging paper; and / or The placement surface (111) is a V-shaped surface.

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