Rotary cutting mechanism for office paper processing

Abstract

The utility model discloses a kind of rotary cutting mechanisms for office paper processing, including cabinet, cutting assembly, paper guide assembly, paper winding assembly, the paper winding assembly is arranged in the inside of cabinet, the paper guide assembly is fixedly connected in the inner wall of cabinet above the paper winding assembly, paper guide assembly side cabinet is opened in the inside and is provided with paper cutting cavity, cutting assembly is provided in the paper cutting cavity, the outer wall of cabinet is opened in the paper cutting cavity side and is provided with paper taking mouth, the lower end of paper taking mouth is rotatably connected with flap, the inside surface of flap is opened with inlay groove, the inlay groove is rotatably connected with paper stop board. The utility model aims at providing a kind of rotary cutting mechanisms, which is high in cutting efficiency, low in labor cost and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of paper cutting and processing technology, specifically a rotary cutting mechanism for processing office paper. Background Technology

[0002] Traditional paper cutters are primarily manual in operation. Their structure mainly includes a frame, cutting components (blades and blade holders), paper guiding / positioning devices (front and side guides), a paper pressing device, and a worktable. During operation, the operator must manually adjust the paper position (using the front and side guides) and use a handle or crank to drive the blades downwards to complete the cut. After cutting, the paper must be manually removed. Its core shortcomings are as follows:

[0003] Low cutting efficiency and inability to operate continuously: Traditional paper cutters rely on manual operation (paper feeding-positioning-cutting-paper picking), and each cut takes a long time, making it difficult to meet the continuous processing needs of batches of paper.

[0004] Cutting accuracy is limited by mechanical positioning: Although equipped with positioning devices such as front gauges and side gauges, their adjustment depends on manual reading and manual locking. The positioning accuracy is easily affected by the operator's experience, and it can only achieve fixed-size cutting, making it difficult to adapt to the dynamic cutting needs of multiple specifications and variable sizes.

[0005] Low level of automation: Traditional paper cutters lack a power-driven paper feeding and positioning mechanism. The paper needs to be manually pulled to the cutting position, and the paper pressing device is only fixed by manual pressing or its own weight. This can easily lead to cutting deviations due to paper slippage.

[0006] In response to the aforementioned shortcomings of traditional paper cutters and the new demands of modern office scenarios, there is an urgent need to design an integrated cutting device that combines automation, high precision, and versatility. Summary of the Invention

[0007] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a rotary cutting mechanism with high cutting efficiency, low labor cost and easy operation.

[0008] The technical solution adopted by this utility model to achieve the above-mentioned objectives is: a rotary cutting mechanism for office paper processing, including a machine housing, a cutting component, a paper guiding component, and a paper winding component. The paper winding component is disposed inside the machine housing and is used to mount office paper rolls, allowing the office paper rolls to rotate relative to each other for paper feeding. A paper guiding component is fixedly connected to the inner wall of the machine housing above the paper winding component. The paper guiding component is used to transport the office paper to a cutting chamber. A cutting chamber is opened in the machine housing on one side of the paper guiding component, and a cutting component is disposed within the cutting chamber. The cutting component is used to cut the introduced paper. Office paper is cut and processed. A paper-taking port is provided on the outer wall of the machine box on one side of the paper-cutting chamber for taking out the cut office paper. A flip-top plate is rotatably connected to the lower end of the paper-taking port. A fitting groove is provided on the inner side of the flip-top plate. A baffle plate is rotatably connected in the fitting groove. A limit block is fixedly connected to the outer wall of the machine box at the lower end of the flip-top plate. The limit block abuts against the outer side of the flip-top plate. In use, the flip-top plate is tilted outward by the limit block, which allows the cut paper to slide from the paper-taking port onto the flip-top plate. The baffle plate prevents the paper from continuing to slide down the flip-top plate to the ground.

[0009] In the above technical solution, the cutting assembly includes a rotating roller, a support plate, and a paper cutter. The rotating roller is rotatably connected inside the paper cutting cavity. The support plate is fixedly connected to the outer wall of the rotating roller. The paper cutter is installed on the other side of the support plate. The cutting edge of the paper cutter is in contact with the inner wall of the paper cutting cavity. The rotating shaft at one end of the rotating roller passes through the machine housing and is fixedly connected to a first synchronous pulley. A first motor is fixedly connected to the upper end of the machine housing. A second synchronous pulley is fixedly connected to the end of the rotating shaft of the first motor. The second synchronous pulley is connected to the first synchronous pulley through a synchronous belt for mutual transmission.

[0010] In the above technical solution, the paper guiding assembly includes a paper guiding block, a first transmission roller, a second transmission roller, a first transmission gear, a second transmission gear, and a paper guiding roller. The paper guiding block is fixedly connected to the top of the machine housing. A paper guiding roller is rotatably connected to one side of the paper guiding block within the machine housing. A paper slot hole is formed within the paper guiding block, with one end of the paper slot hole located on one side of the paper guiding roller and the other end communicating with the paper cutting cavity. Two sets of mutually transmitting first transmission rollers are rotatably connected within the paper guiding block at one end of the paper slot hole. The first transmission rollers are located near the paper guiding roller, and one end of each first transmission roller extends through the outer wall of the machine housing and is fixedly connected to a first transmission gear. The two sets of first transmission gears are meshed with each other. Two sets of mutually transmitting first transmission rollers are rotatably connected within the paper guiding block at the other end of the paper slot hole. The second drive roller is movable. One end of the second drive roller extends through the outer wall of the machine casing and is fixedly connected to a second drive gear. The two sets of second drive gears mesh with each other. One end of the first drive roller and the second drive roller at the bottom is fixedly connected to a linkage wheel. The linkage wheels are connected to each other by a synchronous belt. A drive wheel is connected to the synchronous belt between the linkage wheels. The drive wheel is fixedly connected to a second motor. The second motor is fixedly connected to the lower end of the paper guide block. Both the drive wheel and the linkage wheel are synchronous wheels. Rotating grooves are opened on the paper guide blocks on both sides of the drive wheel. An auxiliary wheel is rotatably connected in the rotating groove. The synchronous belt passes around the auxiliary wheel and is connected to the drive wheel, ensuring that the wrap angle between the synchronous wheel and the synchronous belt is greater than 120°.

[0011] In the above technical solution, the paper roll assembly includes a sliding guide block, a sliding rail, a side guide rail, a support base, a ball bearing, a rotating shaft, a rotating disk, and a center block. A sliding guide groove is formed on the bottom surface of the machine housing. Two sets of symmetrical sliding guide blocks are slidably connected within the sliding guide groove. Each sliding guide block has a threaded hole through it, and the threaded hole is threaded onto a double-acting screw. Both ends of the double-acting screw are rotatably connected to both ends of the sliding guide groove. One end of the double-acting screw protrudes from the outer wall of the machine housing and is fixedly connected to a knob block. Two sets of symmetrical sliding rails are fixedly connected to the bottom of the sliding guide groove. A sliding groove is formed at the lower end of each sliding guide block, and the sliding rails are slidably connected... Within the sliding groove, side guide rails are fixedly connected to both sides of the sliding guide groove. Side guide grooves are respectively opened on both sides of the sliding guide block, and side guide rails are slidably connected within the side guide grooves. A support base is fixedly connected to the upper end of the sliding guide block. A ball bearing is fitted into one side of the upper end of the support base. A rotating shaft is rotatably connected within the ball bearing. One end of the rotating shaft is rotatably connected within the support base, and the other end of the rotating shaft passes through the ball bearing and is fixedly connected to the rotating disk. A center block is fixedly connected to the center of the rotating disk. An office paper roll is clamped and connected between the rotating disks. The center block is inserted into the through holes at both ends of the office paper roll.

[0012] In the above technical solution, an operation port is provided on the back of the chassis, and a back panel is rotatably connected to one side edge of the operation port. A cabinet lock is provided between the other side of the back panel and the chassis.

[0013] The beneficial effects of this utility model are:

[0014] 1. High cutting efficiency and support for continuous operation: This utility model integrates a paper roll assembly, a paper guide assembly, and a rotary cutting assembly to achieve automatic unwinding, continuous conveying, and synchronous cutting of paper. The paper roll assembly can stably release rolls of office paper, the paper guide assembly continuously conveys paper to the cutting chamber through a power-driven transmission roller and gear set, and the rotary blade of the cutting assembly is driven by a motor to rotate synchronously. This eliminates the need for manual operation (paper unwinding-positioning-cutting-paper removal), significantly reducing the time required for a single cutting operation and greatly improving the continuous processing efficiency of batches of paper.

[0015] 2. High cutting precision, adaptable to dynamic needs of multiple specifications: The paper guide assembly, through two sets of mutually driving transmission rollers (the first and second transmission rollers) and a synchronous gear set, ensures stable paper feeding and controllable tension, avoiding deviation caused by manual traction. The rotary blade of the cutting assembly, in conjunction with the shearing structure on the inner wall of the cutting chamber, and the synchronous belt drive, ensures the smoothness of blade rotation and the uniformity of cutting edge pressure, effectively reducing cutting deviation. In addition, by adjusting the sliding guide block and bidirectional lead screw of the paper roll assembly, it can adapt to the unwinding requirements of paper of different widths. Combined with the adjustment of the transmission roller spacing of the paper guide assembly (not explicitly stated but implicit in the gear set design), it can flexibly adapt to dynamic cutting needs of multiple specifications and variable sizes.

[0016] 3. High degree of automation, reducing labor costs: The bidirectional lead screw and sliding guide block design of the paper roll assembly enables quick assembly and disassembly of office paper rolls. The second motor of the paper guide assembly drives the synchronous belt transmission, replacing the traditional manual paper pulling operation. The first motor of the cutting assembly drives the rotating roller and blade through the synchronous pulley and synchronous belt, eliminating the need for manual pressing. The flip-top and baffle design of the paper dispensing port achieves automatic sliding and collection of cut paper through physical limiting, reducing the tedious steps of manual paper picking. The overall structure, through power drive and mechanical linkage, significantly reduces the frequency of manual intervention, significantly saving operation time and labor costs. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of the present invention.

[0020] Figure 4 This is a schematic diagram of the second motor connection structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the first transmission gear and the second transmission gear of this utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional connection structure of the support base of this utility model.

[0023] In the diagram: 1. Chassis; 2. Flip-top; 3. Paper feed port; 4. Fitting groove; 5. Paper guide plate; 6. Paper cutting cavity; 101. Rotating roller; 102. Support plate; 103. Paper cutter; 104. First synchronous pulley; 105. First motor; 106. Second synchronous pulley; 201. Paper guide block; 202. First transmission roller; 203. Second transmission roller; 204. First transmission gear; 205. Second transmission gear; 206. Paper guide roller; 207. Paper slot hole; 20... 8. Linkage wheel, 209. Drive wheel, 210. Second motor, 211. Auxiliary wheel, 301. Sliding guide block, 302. Sliding rail, 303. Side guide rail, 304. Support base, 305. Ball bearing, 306. Rotating shaft, 307. Rotating disk, 308. Center block, 309. Sliding guide groove, 310. Two-way lead screw, 311. Knob block, 312. Sliding groove, 313. Side guide groove, 401. Operating port, 402. Box back panel, 403. Cabinet lock. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6A rotary cutting mechanism for processing office paper includes a housing 1, a cutting component, a paper guide component, and a paper roll component. The paper roll component is housed inside the housing 1, allowing the office paper roll to rotate relative to the housing and be fed. A paper guide component is fixedly connected to the inner wall of the housing 1 above the paper roll component, conveying the office paper to a cutting cavity 6. A cutting cavity 6 is located inside the housing 1 on one side of the paper guide component, and the cutting component is installed within the cutting cavity 6 to cut the incoming office paper. The outer wall of the casing 1 is provided with a paper take-out port 3 for taking out the cut office paper. The lower end of the paper take-out port 3 is rotatably connected to a flip cover 2. The inner side of the flip cover 2 is provided with a fitting groove 4. A baffle plate 5 is rotatably connected in the fitting groove 4. The outer wall of the casing 1 at the lower end of the flip cover 2 is fixedly connected to a limit block. The limit block abuts against the outer side of the flip cover 2. When in use, the flip cover 2 is tilted outward by the limit block, which allows the cut paper to slide from the paper take-out port 3 onto the flip cover 2. The baffle plate 5 prevents the paper from continuing to slide down the flip cover 2 to the ground.

[0026] In the above technical solution, the cutting assembly includes a rotating roller 101, a support plate 102, and a paper cutter 103. The rotating roller 101 is rotatably connected inside the paper cutting cavity 6. The support plate 102 is fixedly connected to the outer wall of the rotating roller 101. The paper cutter 103 is installed on the other side of the support plate 102. The cutting edge of the paper cutter 103 is in contact with the inner wall of the paper cutting cavity 6. The rotating shaft at one end of the rotating roller 101 passes through the machine housing 1 and is fixedly connected to a first synchronous pulley 104. A first motor 105 is fixedly connected to the upper end of the machine housing 1. A second synchronous pulley 106 is fixedly connected to the end of the rotating shaft of the first motor 105. The second synchronous pulley 106 passes through... The synchronous belt and the first synchronous pulley 104 are connected for mutual transmission. In specific use, office paper enters the paper cutting chamber 6 through the paper slot hole 207. Then, the first motor 105 drives the second synchronous pulley 106 to rotate. The second synchronous pulley drives the first synchronous pulley 104 to rotate through the synchronous belt. The first synchronous pulley 104 drives the rotating roller 101 to rotate. The rotating roller 101 drives the support plate 102 to rotate. The support plate 102 drives the paper cutter 103 on the other side to rotate. The paper slot hole 207 located on the inner wall of the paper cutting chamber 6 and the cutting edge of the paper cutter 103 form a shearing structure with each other, thereby cutting the paper exiting the paper slot hole 207.

[0027] In the above technical solution, the paper guiding assembly includes a paper guiding block 201, a first transmission roller 202, a second transmission roller 203, a first transmission gear 204, a second transmission gear 205, and a paper guiding roller 206. The paper guiding block 201 is fixedly connected to the top of the machine housing 1. The paper guiding roller 206 is rotatably connected to one side of the paper guiding block 201 within the machine housing 1. A paper slot hole 207 is formed inside the paper guiding block 201. One end of the paper slot hole 207 is located on one side of the paper guiding roller 206, and the other end of the paper slot hole 207 is connected to the paper cutting cavity 6. Two sets of mutually transmitting first transmission rollers 202 are rotatably connected to the paper guiding block 201 at one end of the paper slot hole 207. The first transmission rollers 202 are located near the paper guiding roller 206. On one side of the paper roller 206, one end of the first drive roller 202 protrudes through the outer wall of the machine housing 1 and is fixedly connected to the first drive gear 204. The two sets of first drive gears 204 mesh with each other. Two sets of mutually driving second drive rollers 203 are rotatably connected to the paper guide block 201 at the other end of the paper slot hole 207. One end of each second drive roller 203 protrudes through the outer wall of the machine housing 1 and is fixedly connected to a second drive gear 205. The two sets of second drive gears 205 mesh with each other. At the bottom, one end of the first drive roller 202 and the second drive roller 203 are fixedly connected to a linkage wheel 208. The linkage wheels 208 are interconnected via a synchronous belt. A drive wheel 209 is connected to the synchronous belt between 208. The drive wheel 209 is fixedly connected to the second motor 210, which is fixedly connected to the lower end of the paper guide block 201. Both the drive wheel 209 and the linkage wheel 208 are synchronous wheels. Rotating grooves are opened on the paper guide blocks 201 on both sides of the drive wheel 209. Auxiliary wheels 211 are rotatably connected in the rotating grooves. The synchronous belt passes around the auxiliary wheels 211 and is connected to the drive wheel 209, ensuring that the wrap angle between the synchronous wheel and the synchronous belt is greater than 120°. In specific operation, the office paper roll installed on the paper roll assembly is inserted into one end of the paper slot hole 207 after passing one end of the paper roll around the paper guide roller 206. Next, the second motor 210 is started, which drives the drive wheel 209 to rotate. The drive wheel 209 drives the linkage wheel 208 to rotate via the synchronous belt. The linkage wheel 208 drives the first transmission roller 202 and the second transmission roller 203 at the bottom to rotate respectively. The first transmission roller 202 and the second transmission roller 203 drive the two sets of opposing first transmission rollers 202 and second transmission rollers 203 to rotate respectively via the first transmission gear 204 and the second transmission gear 205. First, one end of the paper roll is conveyed to the second transmission roller 203 along the paper groove hole 207 via the first transmission roller 202. Then, the paper roll is conveyed to the paper cutting cavity 6 via the second transmission roller 203.

[0028] In the above technical solution, the paper roll assembly includes a sliding guide block 301, a sliding rail 302, a side guide rail 303, a support base 304, a ball bearing 305, a rotating shaft 306, a rotating disk 307, and a center block 308. A sliding guide groove 309 is provided on the bottom surface of the inner casing 1. Two sets of symmetrical sliding guide blocks 301 are slidably connected within the sliding guide groove 309. A threaded hole is passed through each sliding guide block 301, and the threaded hole is threadedly connected to a double-acting lead screw 310. The two ends of the double-acting lead screw 310 are rotatably connected to the two ends of the sliding guide groove 309. One end of the double-acting lead screw 310 extends out of the outer wall of the casing 1 and is fixedly connected to a knob block 311. Two sets of symmetrical sliding rails 302 are fixedly connected to the bottom of the sliding guide groove 309. A sliding groove 312 is provided at the lower end of the sliding guide block 301, and the sliding rails 302 slide... Connected within the sliding groove 312, the sliding guide groove 309 has side guide rails 303 fixedly connected to both sides. The sliding guide block 301 has side guide grooves 313 on both sides, with side guide rails 303 slidably connected within each side guide groove 313. A support base 304 is fixedly connected to the upper end of the sliding guide block 301. A ball bearing 305 is fitted into one side of the upper end of the support base 304. A rotating shaft 306 is rotatably connected within the ball bearing 305. One end of the rotating shaft 306 is rotatably connected within the support base 304, and the other end of the rotating shaft 306 passes through the ball bearing 305 and is fixedly connected to the rotating disk 307. A center block 308 is fixedly connected to the middle of the rotating disk 307. An office paper roll is clamped and connected between the rotating disks 307. The center blocks 308 are respectively inserted into the through holes at both ends of the office paper roll.

[0029] In the above technical solution, an operation port 401 is provided on the back of the chassis 1 to facilitate the disassembly and assembly of office paper rolls on the paper roll assembly. A back panel 402 is rotatably connected to one side edge of the operation port 401, and a cabinet lock 403 is provided between the other side of the back panel 402 and the chassis 1.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotary cutting mechanism for processing office paper, comprising a machine case (1), a cutting assembly, a paper guiding assembly, a paper winding assembly, characterized in that: The machine casing (1) is equipped with a paper roll assembly. A paper guide assembly is fixedly connected to the inner wall of the machine casing (1) above the paper roll assembly. A paper cutting cavity (6) is opened in the machine casing (1) on one side of the paper guide assembly. A cutting assembly is installed in the paper cutting cavity (6). A paper take-out port (3) is opened on the outer wall of the machine casing (1) on one side of the paper cutting cavity (6). A flip cover plate (2) is rotatably connected to the lower end of the paper take-out port (3). A fitting groove (4) is opened on the inner side of the flip cover plate (2). A baffle plate (5) is rotatably connected in the fitting groove (4).

2. A rotary cutting mechanism for processing office paper according to claim 1, characterized in that: The cutting assembly includes a rotating roller (101), a support plate (102), and a paper cutter (103). The rotating roller (101) is rotatably connected inside the paper cutting cavity (6). The support plate (102) is fixedly connected to the outer wall of the rotating roller (101). The paper cutter (103) is installed on the other side of the support plate (102). The cutting edge of the paper cutter (103) is in contact with the inner wall of the paper cutting cavity (6). The rotating shaft at one end of the rotating roller (101) passes through the machine box (1) and is fixedly connected to a first synchronous pulley (104). A first motor (105) is fixedly connected to the upper end of the machine box (1). A second synchronous pulley (106) is fixedly connected to the end of the rotating shaft of the first motor (105). The second synchronous pulley (106) is connected to the first synchronous pulley (104) through a synchronous belt.

3. A rotary cutting mechanism for processing office paper according to claim 1, characterized in that: The paper guiding assembly includes a paper guiding block (201), a first transmission roller (202), a second transmission roller (203), a first transmission gear (204), a second transmission gear (205), and a paper guiding roller (206). The paper guiding block (201) is fixedly connected to the top of the machine housing (1). The paper guiding roller (206) is rotatably connected to the machine housing (1) on one side of the paper guiding block (201). A paper slot hole (207) is opened in the paper guiding block (201). One end of the paper slot hole (207) is located on one side of the paper guiding roller (206), and the other end of the paper slot hole (207) is connected to the paper cutting cavity (6). Two sets of first transmission rollers (202) that drive each other are rotatably connected in the paper guiding block (201) at one end of the paper slot hole (207). The first transmission rollers (202) are located on the side close to the paper guiding roller (206). One end of the first transmission roller (202) passes through the outer wall of the machine housing (1) and connects with the first transmission gear. The wheel (204) is fixedly connected, and the two sets of first transmission gears (204) are meshed with each other. The paper guide block (201) at the other end of the paper slot hole (207) is rotatably connected to two sets of mutually transmitting second transmission rollers (203). One end of the second transmission roller (203) passes through the outer wall of the machine box (1) and is fixedly connected to the second transmission gear (205). The two sets of second transmission gears (205) are meshed with each other. One end of the first transmission roller (202) and the second transmission roller (203) at the bottom is fixedly connected to the linkage wheel (208). The linkage wheels (208) are mutually transmitted through a synchronous belt. The synchronous belt between the linkage wheels (208) is connected to the drive wheel (209). The drive wheel (209) is fixedly connected to the second motor (210). The second motor (210) is fixedly connected to the lower end of the paper guide block (201).

4. A rotary cutting mechanism for processing office paper according to claim 1, characterized in that: The paper roll assembly includes a sliding guide block (301), a sliding rail (302), a side guide rail (303), a support base (304), a ball bearing (305), a rotating shaft (306), a rotating disk (307), and a center block (308). A sliding guide groove (309) is provided on the bottom surface of the housing (1). Two sets of symmetrical sliding guide blocks (301) are slidably connected within the sliding guide groove (309). Each sliding guide block (301) has a threaded hole. The internal thread is connected to the double-acting lead screw (310), and the two ends of the double-acting lead screw (310) are respectively rotatably connected to the two ends of the sliding guide groove (309). One end of the double-acting lead screw (310) passes through the outer wall of the housing (1) and is fixedly connected to the knob block (311). Two sets of symmetrical sliding rails (302) are fixedly connected to the bottom of the sliding guide groove (309). The lower end of the sliding guide block (301) is provided with a sliding groove (312). The sliding rails (302) are slidably connected to the sliding guide groove (309). Inside the moving groove (312), side guide rails (303) are fixedly connected to both sides of the sliding guide groove (309). Side guide grooves (313) are respectively opened on both sides of the sliding guide block (301). Side guide rails (303) are slidably connected in the side guide grooves (313). A support base (304) is fixedly connected to the upper end of the sliding guide block (301). A ball bearing (305) is fitted on one side of the upper end of the support base (304). The ball bearing (305) rotates inside the ball bearing (305). A rotating shaft (306) is rotatably connected to a support base (304). The other end of the rotating shaft (306) passes through a ball bearing (305) and is fixedly connected to a rotating disk (307). A center block (308) is fixedly connected to the middle of the rotating disk (307). An office paper roll is clamped and connected between the rotating disks (307). The center block (308) is inserted into the through holes at both ends of the office paper roll.

5. The rotary cutting mechanism for office paper processing according to claim 1, characterized in that: An operation port (401) is provided on the back of the chassis (1). A back panel (402) is rotatably connected to one side edge of the operation port (401). A cabinet lock (403) is provided between the other side of the back panel (402) and the chassis (1).

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