Bobbin paper slitting and rewinding machine

Abstract

The invention relates to the technical field of bobbin paper slitting, and discloses a bobbin paper slitting rewinding machine which comprises a rewinding machine body, a winding shaft, a paper unloading assembly, a mounting assembly and a roll fixing assembly. The rewinding machine body is provided with a paper winding shaft, a conveying shaft and a cutter assembly which are used for winding and slitting roll paper. The device has the following advantages and effects that the roll paper drum is convenient to assemble and disassemble, the insertion rod and the insertion drum can be rapidly separated after the shaft rod rotation operation is completed, the vertical frame drives the insertion block to be separated from the shaft rod, the roll paper drum can be rapidly moved out, the shaft rod does not need to be wholly taken out, labor and time are saved, and the roll paper drum is rapidly fixed and moved; according to the scheme, the transmission ring and the U-shaped frame only need to be driven through the motor, the U-shaped frame fixes the roll paper drum, so that the roll paper drum can be stably rolled and conveniently moved out, when the shaft rod is maintained, assembled and disassembled, the shaft rod cancels displacement limitation in the axial direction and tends to be integrally installed with a machine body at present, and according to the scheme, the shaft rod is more convenient to assemble and disassemble.

Description

Technical Field

[0001] The invention relates to the technical field of coil paper slitting, and in particular to a coil paper slitting and rewinding machine. Background Art

[0002] The paper slitting and rewinding machine can slit the large shaft paper into paper rolls of different widths for the production of different types of products such as napkins, facial tissue, cigarette paper, etc.

[0003] The existing Chinese patent with the public number CN210910117U discloses a roll paper slitting machine, including a machine body, a roll unwinding rack, a slitting knife slide rail, and a paper splitting shaft rack are installed on both sides of the machine body, and a paper transfer rack is installed on the surface of the machine body. The slidable slitting knife is set in a standing position, and the roll paper is easily cut after passing through the slitting knife, which completely avoids the situation that practical knife roller slitting is prone to missed cutting, so that the roll paper is cut evenly by the slitting knife. In addition, the slitting knife can adjust the spacing at will, and can quickly realize the rapid change of rolls of different widths, greatly improving the practicality of the slitting machine.

[0004] Based on the above situation, the inventors believe that after the paper roll is cut, the separation and installation steps of the paper roll on the reel are still relatively laborious and cumbersome. Therefore, the inventors propose an improved slitting and rewinding machine. Summary of the invention

[0005] The object of the present invention is to provide a paper coil slitting and rewinding machine which has the effect of quickly loading and unloading a paper coil.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A paper slitting and rewinding machine comprises a rewinding machine body, a rewinding shaft, a paper unloading assembly, a mounting assembly and a reel fixing assembly;

[0007] The rewinder body is provided with a paper coiling shaft, a conveying shaft and a cutter assembly for winding and slitting paper rolls. The rewinding shaft is rotatably installed at the end of the rewinder body in the working direction. A support frame is fixedly provided on the outside of the rewinder body. One end of the rewinding shaft is detachably installed on the paper unloading assembly, and the other end is detachably connected to the support frame through the mounting assembly. The rewinding shaft is used to drive the paper roll to rotate, and the fixing roll assembly is arranged inside the rewinding shaft so that the paper roll can be quickly fixed through the fixing roll assembly.

[0008] The present invention is further configured as follows: the winding shaft comprises a shaft rod, the paper unloading assembly comprises a stationary part and a movable part which can be fixed to and separated from each other, and one end of the winding shaft is connected to the movable part.

[0009] By adopting the above technical solution, when the paper roll needs to be removed, only one end of the reel needs to be separated from the movable part.

[0010] The present invention is further configured as follows: the stationary part includes a magnetic suction cup and an insertion tube fixed to the outer side of the magnetic suction cup, and the movable part includes an insertion rod with one end plugged into the insertion tube, a slide fixed to the other end of the insertion rod, a vertical frame fixedly connected to the slide at the bottom end, and an insertion block rotatably connected to the top of the vertical frame.

[0011] By adopting the above technical solution, the slide plate can drive the insertion rod to slide linearly in the left and right directions.

[0012] The present invention is further configured as follows: a first slot for plugging with the plug block is provided on one side of the shaft rod close to the vertical frame, and the plug rod is magnetically connected with the magnetic suction cup after being inserted into the plug tube.

[0013] By adopting the above technical solution, when the shaft rod is used daily, the magnetic suction cup absorbs the insertion rod, so that the position of the insertion block is fixed.

[0014] The present invention is further configured as follows: the installation assembly includes an installation cylinder rotatably installed on the support frame, a positioning assembly arranged outside the installation cylinder, and an unlocking assembly rotatably installed on the installation cylinder.

[0015] By adopting the above technical solution, the shaft rod is installed through the installation tube, and the positioning component allows the shaft rod to maintain axial retention on the installation tube.

[0016] The present invention is further configured as follows: a positioning hole is provided on the mounting tube, and the positioning assembly includes a positioning block slidably arranged in the positioning hole, a cutout provided on the positioning block, a pressure plate whose bottom end is fixed to the positioning block, and a first spring whose two ends are respectively fixed to the pressure plate and the mounting tube.

[0017] By adopting the above technical solution, when the positioning block is displaced outward, it can be quickly reset by the first spring.

[0018] The present invention is further configured as follows: the outer side of the shaft rod is plugged into the mounting tube, and a second slot for plugging into the bottom end of the positioning block is opened on the outer side of the shaft rod, the unlocking assembly includes a ring rotatably mounted on the outer side of the mounting tube, a protrusion and a push rod fixed to the surface of the ring, and the positioning port and the surface of the protrusion are distributed with a first slope and a second slope for mutual sliding fit.

[0019] By adopting the above technical solution, when the positioning block is displaced outward, it can be quickly reset by the first spring.

[0020] The present invention is further configured as follows: an installation cavity is opened inside the shaft rod, and the winding assembly includes a motor, a synchronization assembly, a transmission ring, a fixing assembly and a support assembly arranged in the installation cavity, the transmission ring is connected to the output end of the motor through the synchronization assembly, the fixing assembly is driven by the transmission ring, and the support assembly rotates in cooperation with the transmission ring.

[0021] By adopting the above technical solution, the support assembly is used to provide installation support for the transmission ring.

[0022] The present invention is further configured as follows: the output end of the motor is fixed to the first gear, the synchronization assembly includes a rotating rod, a second gear coaxially fixed on the rotating rod, and a mounting frame rotatably connected to the outer side of the rotating rod, a tooth groove is provided on the outer side of the transmission ring, and the outer side of the second gear is meshed with the first gear and the tooth groove.

[0023] By adopting the above technical solution, the overall structure of the transmission ring is C-shaped, and when the paper roll is not fixed, its opening is close to the fixing component.

[0024] The present invention is further configured as follows: the fixing assembly includes a telescopic sleeve embedded and fixed in the shaft rod, a U-shaped frame slidably matched with the telescopic sleeve, and a second spring fixedly connected to the shaft rod and the U-shaped frame at both ends; the supporting assembly includes a fixing plate fixed to the inner side of the transmission ring, a connecting shaft fixedly connected to the fixing plate at one end, and a support plate rotatably connected to the other end of the connecting shaft; the outer side of the transmission ring is in sliding contact with the U-shaped frame.

[0025] By adopting the above technical solution, the transmission ring can drive the connecting shaft to rotate stably after being stressed, so as to quickly apply force to the U-shaped frame.

[0026] The beneficial effects of the present invention are:

[0027] 1. The paper roll is easy to load and unload. After the shaft is rotated, the rod and the insert can be quickly separated, and the insert block is separated from the shaft through the vertical frame, so that the paper roll can be quickly removed without taking out the entire shaft, saving effort and time.

[0028] 2. The paper roll can be fixed and moved quickly. The motor only needs to drive the transmission ring and the U-shaped frame, so that the U-shaped frame can fix the paper roll, so that the paper roll can be stably rolled up and moved out easily.

[0029] 3. When the shaft is maintained and loaded and unloaded, the positioning block can be separated from the shaft by rotating the collar, so that the shaft can cancel the axial displacement restriction, which is similar to the current shaft design that is installed integrally with the machine body. The shaft loading and unloading of this solution is more convenient;

[0030] 4. The degree of automation is high, and less manpower is required in the whole process, which can reduce the labor intensity of workers and improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic structural diagram of a paper slitting and rewinding machine provided in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of a reel in an embodiment of the present invention;

[0034] Figure 3 This is a structural schematic diagram of a paper unloading assembly in an embodiment of the present invention;

[0035] Figure 4 It is a structural schematic diagram of an installation component in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the second slot of the mounting assembly in an embodiment of the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the installation cavity in an embodiment of the present invention;

[0038] Figure 7 It is a structural schematic diagram of a transmission ring in an embodiment of the present invention;

[0039] Figure 8 Schematic diagram of the structure of the fixing assembly in an embodiment of the present invention.

[0040] In the figure, 1, rewinder body; 2, reel shaft; 3, paper unloading assembly; 4, installation assembly; 5, motor; 6, synchronization assembly; 7, transmission ring; 8, fixing assembly; 9, support assembly; 11, paper reel shaft; 12, conveying shaft; 13, cutter assembly; 14, support frame; 15, transmission assembly; 16, paper reel; 17, first bracket; 18, second bracket; 21, shaft; 211, first slot; 212, second slot; 213, installation cavity; 31, magnetic suction cup; 32, inserting tube; 33, inserting rod; 34, slide plate; 35, vertical frame; 36, Insert block; 41, mounting cylinder; 42, positioning assembly; 43, unlocking assembly; 411, positioning port; 421, positioning block; 422, cutout; 423, pressure plate; 424, first spring; 425, first slope; 431, collar; 432, bump; 433, push rod; 434, second slope; 51, first gear; 52, power supply assembly; 61, rotating rod; 62, second gear; 63, mounting frame; 71, tooth groove; 81, telescopic sleeve; 82, U-shaped frame; 83, second spring; 91, fixing plate; 92, connecting shaft; 93, support plate. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The embodiment of the present invention specifically provides a paper slitting and rewinding machine, please refer to Figure 1-Figure 8 , including a rewinding machine body 1, a rewinding shaft 2, a paper unloading component 3, an installation component 4 and a reel fixing component.

[0043] Among them, the rewinder body 1 is provided with a paper reel shaft 11, a conveying shaft 12 and a cutter assembly 13 for winding and slitting paper rolls. The reel shaft 2 is rotatably installed at the end of the working direction of the rewinder body 1. The paper reel shaft 11, the conveying shaft 12 and the cutter assembly 13 are all existing components. After the paper is transported by the conveying shaft 12, it can be cut by the cutter assembly 13 to form a corresponding small paper roll.

[0044] Specifically, a support frame 14 is fixedly provided on the outside of the rewinding machine body 1, one end of the winding shaft 2 is detachably mounted on the paper unloading assembly 3, and the other end is detachably connected to the support frame 14 through the mounting assembly 4, and the winding shaft 2 is used to drive the paper roll 16 to rotate, and the fixed winding assembly is arranged inside the winding shaft 2 to quickly fix the paper roll 16 through the fixed winding assembly, so that the paper roll 16 can quickly follow the winding shaft 2 to rotate and roll up paper, and can be quickly removed from the winding shaft 2 to facilitate workers' operation.

[0045] Furthermore, the winding shaft 2 includes a shaft rod 21, and the paper unloading assembly 3 includes a stationary part and a movable part that can be fixed and separated from each other. One end of the winding shaft 2 is connected to the movable part. When the paper roll 16 needs to be removed, it is only necessary to separate one end of the winding shaft 2 from the movable part, so that the paper roll 16 can be quickly slid out from this end and removed.

[0046] During implementation, a transmission assembly 15 is bolted to the outer side of the rewinding machine body 1, the input end of the transmission assembly 15 is connected to the driving component in the rewinding machine body 1, and the output end of the transmission assembly 15 is connected to the end of the shaft 21 close to the support frame 14, so as to drive the shaft 21 to rotate through the transmission assembly 15. The type of the transmission assembly 15 can be a gear transmission box or a belt transmission structure in the prior art, which can quickly provide rotation support for the shaft 21 and is convenient for loading and unloading operations.

[0047] Among them, a first bracket 17 and a second bracket 18 are fixedly arranged on the inner side of the rewinding machine body 1, and the stationary part includes a magnetic suction cup 31 and an inserting tube 32 fixed to the outer side of the magnetic suction cup 31, the magnetic suction cup 31 is an existing component, which can generate magnetic force after power is turned on, one end of the inserting tube 32 is physically fixed to the adsorption surface of the magnetic suction cup 32, and the bottom surface of the magnetic suction cup 32 is fixedly connected to the first bracket 17;

[0048] The movable parts include an insertion rod 33 with one end plugged into the insertion tube 32, a slide plate 34 fixed to the other end of the insertion rod 33, a vertical frame 35 fixedly connected to the slide plate 34 at the bottom end, and an insertion block 36 rotatably connected to the top of the vertical frame 35. The outer side of the slide plate 34 is slidably connected to the second bracket 18, so that the slide plate 34 can drive the insertion rod 33 to slide linearly in the left and right directions.

[0049] Specifically, a first slot 211 for connecting with the plug block 36 is provided on one side of the shaft 21 close to the vertical frame 35. The inner wall contour of the first slot 211 and the outer contour of the plug block 36 are paired square structures, so that when the shaft 21 rotates, it can drive the plug block 36 to rotate, so as to support one end of the shaft 21 through the plug block 36, and the installation of the shaft 21 remains stable.

[0050] Among them, after the insertion rod 33 is inserted into the insertion tube 32, it is magnetically connected to the magnetic suction cup 31. The material of the insertion rod 33 is magnetic material. When the shaft rod 21 is used daily, the magnetic suction cup 31 absorbs the insertion rod 33, so that the position of the insertion block 36 is fixed. When the paper roll 16 needs to be taken out, the magnetic suction cup 31 can be powered off, and then the vertical frame 35 is pulled outward by the outward pulling force, so that the slide plate 34 slides outward, driving the insertion block 36 to separate from the first slot 211, and making the outer end of the shaft rod 21 suspended and forming a gap with the insertion block 36 for the paper roll 16 to be taken out.

[0051] Furthermore, the mounting assembly 4 includes a mounting cylinder 41 rotatably mounted on the support frame 14, a positioning assembly 42 arranged on the outside of the mounting cylinder 41, and an unlocking assembly 43 rotatably mounted on the mounting cylinder 41. The shaft rod 21 is installed through the mounting cylinder 41, and the positioning assembly 42 allows the shaft rod 21 to maintain axial position on the mounting cylinder 41.

[0052] Among them, a positioning hole 411 is opened on the installation tube 41, and the positioning assembly 42 includes a positioning block 421 slidably set in the positioning hole 411, a cutout 422 opened on the positioning block 421, a pressure plate 423 whose bottom end is fixed with the positioning block 421, and a first spring 424 whose two ends are respectively fixed with the pressure plate 423 and the installation tube 41. When the positioning block 421 is displaced outward, it can be quickly reset by the first spring 424.

[0053] During implementation, the outer side of the shaft rod 21 is plugged into the installation tube 41, and a second slot 212 for plugging into the bottom end of the positioning block 421 is opened on the outer side of the shaft rod 21. The positioning block 421 is inserted into the second slot 212 to keep the shaft rod 21 axially positioned.

[0054] Among them, the unlocking component 43 includes a ring 431 rotatably installed on the outside of the installation tube 41, a protrusion 432 fixed on the surface of the ring 431 and a push rod 433. By applying force to the push rod 433 by hand, the ring 431 can be driven to rotate circumferentially.

[0055] Among them, the surfaces of the positioning port 411 and the protrusion 432 are provided with a first slope 425 and a second slope 434 for sliding cooperation with each other. When the protrusion 432 rotates toward the positioning buckle 411, the first slope 425 is pushed upward through the second slope 434, so that the positioning block 421 can move up, thereby allowing the bottom end of the positioning block 421 to move out of the second slot 212, so that the shaft 21 can be quickly withdrawn from the mounting tube 41.

[0056] It is worth mentioning that when the ring 431 is rotated, in order to avoid the synchronous rotation of the shaft 21, a worker can use his hands to apply force to the shaft 21 to prevent its circumferential synchronous rotation. In other embodiments, the rotation direction of the transmission assembly 15 can also be set to a one-way paper rolling direction so that the shaft 21 cannot be reversed, and the rotation direction of the ring 431 when in use is opposite to the working direction of the shaft 21.

[0057] Furthermore, in order to quickly fix and remove the paper roll 16, an installation cavity 213 is opened inside the shaft 21, and the fixed winding component includes a motor 5, a synchronization component 6, a transmission ring 7, a fixing component 8 and a support component 9 arranged in the installation cavity 213. The transmission ring 7 is connected to the output end of the motor 5 through the synchronization component 6, the fixing component 8 is driven by the transmission ring 7, and the support component 9 is rotatably matched with the transmission ring 7. The support component 9 is used to provide installation support for the transmission ring 7.

[0058] Among them, the output end of the motor 5 is fixed to the first gear 51, and a power supply component 52 is also provided in the installation cavity 213 for supplying power to the motor 5. The type of the power supply component 52 can be an existing rechargeable power supply or a wiring type, which will not be described in detail here.

[0059] During implementation, the synchronization component 6 includes a rotating rod 61, a second gear 62 coaxially fixed on the rotating rod 61, and a mounting frame 63 rotatably connected to the outer side of the rotating rod 61, the mounting frame 63 is fixedly installed in the mounting cavity 213, and a tooth groove 71 is provided on the outer side of the transmission ring 7. The outer side of the second gear 62 is meshed with the first gear 51 and the tooth groove 71. The overall structure of the transmission ring 7 is C-shaped. When the paper roll 16 is not fixed, its opening is close to the fixing component 8.

[0060] Specifically, the fixing assembly 8 includes a telescopic sleeve 81 embedded and fixed in the shaft rod 21, a U-shaped frame 82 slidably matched with the telescopic sleeve 81, and a second spring 83 with both ends fixedly connected to the shaft rod 21 and the U-shaped frame 82 respectively. The outlet of the telescopic sleeve 81 away from the U-shaped frame 82 is the surface of the shaft rod 21, so that when the U-shaped frame 82 slides outward, it can apply force from the inside of the telescopic sleeve 81 to the outside of the paper roll 16 inserted on the surface of the shaft rod 21, so that the paper roll 16 can remain fixed.

[0061] By adopting the above technical solution, when the motor 5 drives the first gear 51 to rotate, the rotating rod 61 will rotate through the second gear 62, and after the transmission ring 7 rotates, the end away from the opening will apply force to the U-shaped frame 82, so that the U-shaped frame 82 slides outward to fix the paper roll 16. When it needs to be taken out, it only needs to drive the first gear 51 to reverse, so that the U-shaped frame 82 is reset by the second spring 83.

[0062] Among them, the support assembly 9 includes a fixing plate 91 fixed to the inner side of the transmission ring 7, a connecting shaft 92 fixedly connected to the fixing plate 91 at one end, and a support plate 93 rotatably connected to the other end of the connecting shaft 92. The support plate 93 is fixedly connected to the inner wall of the installation cavity 213, and the outer side of the transmission ring 7 is in sliding contact with the U-shaped frame 82, so that the transmission ring 7 can drive the connecting shaft 92 to rotate stably after being subjected to force, thereby quickly applying force to the U-shaped frame 82.

[0063] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A paper slitting and rewinding machine, characterized in that: It comprises a rewinding machine body (1), a rewinding shaft (2), a paper unloading assembly (3), a mounting assembly (4) and a reel fixing assembly; A rewinding machine body (1) is provided with a paper reel shaft (11), a conveying shaft (12) and a cutter assembly (13) for winding and slitting paper rolls. A rewinding shaft (2) is rotatably mounted at the end of the rewinding machine body (1) in a working direction. A support frame (14) is fixedly arranged outside the rewinding machine body (1). One end of the rewinding shaft (2) is detachably mounted on the paper unloading assembly (3), and the other end is detachably connected to the support frame (14) via a mounting assembly (4). The rewinding shaft (2) is used to drive a paper roll (16) to rotate. A fixing assembly is arranged inside the rewinding shaft (2) so as to quickly fix the paper roll (16) via the fixing assembly.

2. The paper slitting and rewinding machine according to claim 1, characterized in that: The reel (2) comprises a shaft (21), the paper unloading assembly (3) comprises a stationary part and a movable part which can be fixed to and separated from each other, and one end of the reel (2) is connected to the movable part.

3. The paper slitting and rewinding machine according to claim 2, characterized in that: The stationary part comprises a magnetic suction cup (31) and an inserting sleeve (32) fixed to the outer side of the magnetic suction cup (31); the movable part comprises an inserting rod (33) with one end plugged into the inserting sleeve (32), a slide plate (34) fixed to the other end of the inserting rod (33), a vertical frame (35) with a bottom end fixedly connected to the slide plate (34), and an inserting block (36) rotatably connected to the top end of the vertical frame (35).

4. The paper slitting and rewinding machine according to claim 3, characterized in that: A first slot (211) for plugging with an insert block (36) is provided on one side of the shaft rod (21) close to the vertical frame (35); the insert rod (33) is magnetically connected to the magnetic suction cup (31) after being inserted into the insert cylinder (32).

5. The paper slitting and rewinding machine according to claim 4, characterized in that: The mounting assembly (4) comprises a mounting cylinder (41) rotatably mounted on the support frame (14), a positioning assembly (42) arranged outside the mounting cylinder (41), and an unlocking assembly (43) rotatably mounted on the mounting cylinder (41).

6. A paper slitting and rewinding machine according to claim 5, characterized in that: The mounting tube (41) is provided with a positioning opening (411), and the positioning assembly (42) comprises a positioning block (421) slidably arranged in the positioning opening (411), a notch (422) provided on the positioning block (421), a pressing plate (423) whose bottom end is fixed to the positioning block (421), and a first spring (424) whose two ends are respectively fixed to the pressing plate (423) and the mounting tube (41).

7. The paper slitting and rewinding machine according to claim 6, characterized in that: The outer side of the shaft rod (21) is plugged into the mounting tube (41), and a second slot (212) for plugging into the bottom end of the positioning block (421) is provided on the outer side of the shaft rod (21). The unlocking assembly (43) comprises a collar (431) rotatably mounted on the outer side of the mounting tube (41), a protrusion (432) and a push rod (433) fixed on the surface of the collar (431). The surfaces of the positioning opening (411) and the protrusion (432) are provided with a first slope (425) and a second slope (434) for sliding fit with each other.

8. The paper slitting and rewinding machine according to claim 7, characterized in that: The shaft (21) has an installation cavity (213) formed therein. The winding assembly comprises a motor (5), a synchronization assembly (6), a transmission ring (7), a fixing assembly (8) and a support assembly (9) arranged in the installation cavity (213). The transmission ring (7) is connected to the output end of the motor (5) through the synchronization assembly (6). The fixing assembly (8) is driven by the transmission ring (7). The support assembly (9) is rotatably matched with the transmission ring (7).

9. A paper slitting and rewinding machine according to claim 8, characterized in that: The output end of the motor (5) is fixed to the first gear (51), the synchronization assembly (6) comprises a rotating rod (61), a second gear (62) coaxially fixed to the rotating rod (61), and a mounting frame (63) rotatably connected to the outer side of the rotating rod (61), a tooth groove (71) is provided on the outer side of the transmission ring (7), and the outer side of the second gear (62) is meshed with the first gear (51) and the tooth groove (71).

10. The paper slitting and rewinding machine according to claim 9, characterized in that: The fixing assembly (8) comprises a telescopic sleeve (81) embedded and fixed in the shaft (21), a U-shaped frame (82) slidably matched with the telescopic sleeve (81), and a second spring (83) whose two ends are respectively fixedly connected to the shaft (21) and the U-shaped frame (82); the supporting assembly (9) comprises a fixing plate (91) fixed to the inner side of the transmission ring (7), a connecting shaft (92) fixedly connected to the fixing plate (91) at one end, and a supporting plate (93) rotatably connected to the other end of the connecting shaft (92); and the outer side of the transmission ring (7) is in sliding contact with the U-shaped frame (82).

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