High-speed paper splitting machine

Abstract

The invention discloses a high-speed paper splitting machine, which relates to the technical field of paper splitting machines, and comprises a main console provided with a control panel; the machine frame is arranged on one side of the main console, a space used for arranging parts is reserved between the machine frame and the main console, a plurality of guide rollers are installed between the machine frame and the main console, at least one slitting roller is arranged between the machine frame and the main console, and the slitting rollers are located on the rear sides of the guide rollers; and the two sets of winding frames are arranged on the front side and the rear side of the rack correspondingly, and a plurality of sets of roller ring sleeve pieces used for limiting and cutting paper are fixedly installed on rotating rods in the slitting roller and the front winding frame correspondingly. The multiple sets of roll collar sleeve pieces can be used as a roller, the magnetic attraction control assembly can control the roll collar inner limiting pieces to be located in the roll collars or outside the roll collars, and therefore the two ends of paper can be conveniently limited so that it can be guaranteed that the paper is tidy, and meanwhile the paper can be slit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper slitting machine, in particular to a high-speed paper slitting machine. BACKGROUND

[0002] The paper slitting machine is a device specially used for cutting large rolls of paper (such as paper rolls) into small rolls of paper or paper of desired size. It is widely used in printing, packaging, papermaking and other industries.

[0003] The paper slitting machine is a device specially used for cutting large rolls of paper (such as paper rolls) into small rolls of paper or paper of desired size. It is widely used in printing, packaging, papermaking and other industries.

[0004] In the above technical solution, the roller body structure is simple, and the paper may move with the roller body during the slitting process, which may cause the cutting to be skewed, and the slitting structure needs to be set separately, which increases the structure setting, and the cutting tool is generally exposed outside, with poor protection. SUMMARY

[0005] The purpose of the present application is to provide a high-speed paper slitting machine, which solves the problem of simple roller body structure and paper moving with the roller body during the slitting process, which may cause the cutting to be skewed.

[0006] The present application solves the above technical problems by the following technical solutions, the present application comprises: A main control console is provided on the main control console. A rack is provided on one side of the main control console, and a space for setting parts is left between the rack and the main control console. A plurality of guide rollers are installed between the rack and the main control console. At least one slitting roller is provided between the rack and the main control console. The slitting roller is located behind the guide roller. The main control console and the rear side of the rack are both provided with mounting grooves. The two ends of the slitting roller are respectively clamped in the mounting grooves on both sides. Two groups of winding frames are arranged on the front side and the rear side of the rack respectively, the winding frame on the front side of the rack is a front winding frame for placing unslit paper, the winding frame on the rear side of the rack is a rear winding frame for winding slit paper, the winding frame comprises a fixing seat, a mounting side plate, a servo motor and a rotating rod, the fixing seat is mounted on the front side of the rack, the mounting side plate is mounted on the top of the fixing seat, the servo motor is mounted on one side of the mounting side plate, and the rotating rod is mounted on the output end of the servo motor, and two rotating rods are arranged on the front side and the rear side of the guide roller respectively. A plurality of roller ring sets for limiting and cutting paper are fixedly arranged on the rotating rods of the slitting roller and the front winding frame, the roller ring set is sequentially fixedly arranged by a plurality of roller rings, an inner ring groove is arranged in the roller ring, three through grooves are uniformly arranged between the inner ring groove and the outer wall of the roller ring, a limiting piece is arranged in the through groove, the limiting piece at the top of the roller ring on the slitting roller is a blade, and a magnetic attraction control assembly for controlling the position of the limiting piece is arranged in the inner ring groove.

[0007] Preferably, an opening is arranged on one side of the roller ring, and a mounting ring is mounted in the opening.

[0008] Preferably, the magnetic attraction control assembly comprises an electromagnetic block, a mounting sheet, a limiting spring and a metal pushing block, the mounting sheet is mounted on the inner wall of the inner ring groove through the limiting spring, the limiting piece is mounted on the mounting sheet, the metal pushing block is a block-shaped structure with the surfaces on both sides becoming wider and the surfaces becoming arc-shaped, one side of the mounting sheet is in contact with the arc surface, the narrower side of the metal pushing block is located below the mounting sheet, the wider side of the metal pushing block is attached to the mounting ring, a guide rod is arranged between the inner wall of the inner ring groove and the mounting ring, a guide hole is arranged on the metal pushing block, the guide rod is clamped in the guide hole, and the electromagnetic block is mounted on the inner wall of the inner ring groove and corresponds to the metal pushing block.

[0009] Preferably, the contact between the mounting sheet and the arc surface of the metal pushing block is arc-shaped.

[0010] Preferably, the metal pushing block is a hollow structure.

[0011] Preferably, the upper part of the rear side of the rack is also provided with a winding frame, and the winding frame on the upper part of the rear side of the rack is an upper winding frame for winding slit paper.

[0012] Preferably, the front lower part and the rear lower part of the main console are provided with end positioning assemblies for maintaining the vertical stability of the rotating rod, the end positioning assembly comprises a mounting seat, a moving contact structure, a fixed plate and an adjusting oil cylinder, the mounting seat is mounted on the front side and the rear side of the main console, the fixed plate is mounted on the mounting seat, the moving contact structure comprises a moving side plate and a connecting rotating shaft mounted on the moving side plate, the adjusting oil cylinder is mounted on one side of the fixed plate, the moving side plate is mounted on the output end of the adjusting oil cylinder, and the rotating rod is provided with a clamping groove at one end, and the connecting rotating shaft is clamped in the clamping groove.

[0013] Preferably, the rear upper part of the main console is provided with a moving contact structure, and the moving contact structure of the rear upper part of the main console is connected with the moving contact structure of the rear lower part of the main console through a linkage rod.

[0014] Preferably, the bottom of the mounting groove is provided with a placing groove, an oil cylinder is mounted in the placing groove, a positioning block is arranged in the mounting groove, the positioning block is mounted on the output end of the oil cylinder, and the end of the splitting roller is clamped between the positioning block and the inner wall of the mounting groove.

[0015] Compared with the prior art, the present application has the following advantages: 1. The plurality of roller ring sets can be used as a roller, and the magnetic attraction control assembly can control the position of the limiting piece in the roller ring, so that the paper can be conveniently positioned at both ends to ensure the neatness of the paper, and the paper can be conveniently cut.

[0016] 2. The plurality of roller ring sets can also be used flexibly according to the length of the paper cylinder.

[0017] 3. The knife can be stored in the roller ring when the cutting machine is not used, so that the knife can be protected.

[0018] 4. The end positioning assembly can control the clamping of the connecting rotating shaft and the rotating rod end clamping groove, so that the rotating rod can be used stably and safely, and the paper can be conveniently put in and taken out. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view structure of the present application; Figure 2 It is a rear view structure of the present application; Figure 3 It is a rotating rod structure view of the present application; Figure 4This is a structural view of the roller ring assembly on the rotating rod of the present invention; Figure 5 This is a structural view of the upper roller ring assembly of the slitting roller according to the present invention; Figure 6 This is a view of the roller ring structure on the rotating rod of the present invention; Figure 7 This is a structural view of the upper roller ring of the slitting roller according to the present invention; Figure 8 This is a left exploded view of the roller ring of the present invention; Figure 9 This is a right-side exploded view of the roller ring of the present invention; Figure 10 This is a cross-sectional view of the roller ring of the present invention; Figure 11 This is a structural view of the positioning support block of the present invention.

[0020] The numbers in the image represent: 1. Main control console; 2. Frame; 3. Rewinding frame; 301. Mounting base; 302. Mounting side plate; 303. Servo motor; 304. Rotating rod; 4. Snap-fit ​​groove; 5. Control panel; 6. Guide roller; 7. Slitting roller; 8. Mounting groove; 9. Roller ring assembly; 10. Roller ring; 11. Inner ring groove; 12. Through groove; 13. Limiting component; 1301. Blade; 14. Magnetic attraction control assembly; 1401. Electromagnetic block; 402. Mounting plate; 1403. Limiting spring; 1404. Metal push block; 15. Mounting ring; 16. Guide rod; 17. Guide hole; 18. End positioning assembly; 1801. Mounting base; 1802. Moving contact structure; 18021. Moving side plate; 18022. Connecting shaft; 1803. Fixing plate; 1804. Adjusting cylinder; 19. Linkage rod; 20. Cylinder; 21. Positioning support block. Detailed Implementation

[0021] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0022] Example 1: This example provides a technical solution: a high-speed paper slitting machine, such as... Figures 1-11 As shown, the present invention includes a main control console 1, a frame 2, and two sets of winding frames 3.

[0023] In specific implementations, such as Figure 1 As shown, the main control console 1 is equipped with a control panel 5, and the control panel 5 contains a controller to facilitate the control of various components.

[0024] In specific implementations, such as Figure 1 and Figure 2As shown, the rack 2 is arranged on one side of the console 1, and a space for arranging parts is left between the rack 2 and the console 1, a plurality of guide rollers 6 are installed between the rack 2 and the console 1, at least one slitting roller 7 is arranged between the rack 2 and the console 1, and the slitting roller 7 is located at the rear side of the guide roller 6, as shown in Figure 1 As shown, the guide roller 6 near the slitting roller 7 is below the slitting roller 7 in the horizontal direction, and mounting grooves 8 are formed on the rear side of the console 1 and the rack 2, and the two ends of the slitting roller 7 are respectively clamped in the mounting grooves 8 on both sides.

[0025] Further, two groups of winding frames 3 are arranged on the front side and the rear side of the rack 2, the winding frame 3 on the front side of the rack 2 is a front winding frame 3 for placing unslit paper, and the winding frame 3 on the rear side of the rack 2 is a rear winding frame 3 for winding the paper after slitting, the winding frame 3 comprises a fixed seat 301, an installation side plate 302, a servo motor 303 and a rotating rod 304, the fixed seat 301 is installed on the front side of the rack 2, the installation side plate 302 is installed on the top of the fixed seat 301, the servo motor 303 is installed on one side of the installation side plate 302, and the rotating rod 304 is installed on the output end of the servo motor 303, and the two rotating rods 304 are respectively located on the front side and the rear side of the guide roller 6, the front winding frame 3 and the rear winding frame 3 are both completed by rotating the rotating rod 304 driven by the servo motor 303 when the front winding frame 3 releases the paper and the rear winding frame 3 winds the cut paper, and the servo motor 303 is in communication connection with the controller to facilitate control by the control panel 5.

[0026] In a specific implementation, as shown in Figures 1-7 As shown, a plurality of roller ring sets 9 for limiting and cutting paper are fixedly installed on the slitting roller 7 and the rotating rod 304 of the front winding frame 3, the roller ring set 9 is sequentially fixedly arranged by a plurality of roller rings 10, the roller rings 10 can be connected by glue or fixedly connected by using screws and the like, an inner ring groove 11 is arranged in the roller ring 10, three through grooves 12 are uniformly formed between the inner ring groove 11 and the outer wall of the roller ring 10, the three through grooves 12 are respectively arranged at the top center and the bottom of the two sides of the roller ring 10, a limiting piece 13 is arranged in the through groove 12, the limiting piece 13 at the top of the roller ring 10 on the slitting roller 7 is a blade 1301, the paper can be slit by the blade 1301 when passing through the slitting roller 7, a magnetic attraction control assembly 14 for controlling the position of the limiting piece 13 is arranged in the inner ring groove 11, the limiting piece 13 in the roller ring 10 can be controlled to be located in the roller ring 10 or outside the roller ring 10 by the magnetic attraction control assembly 14, so that the two ends of the paper can be conveniently limited, and two roller rings 10 needed to be used can be flexibly selected according to the length of the paper tube, and the use is flexible and convenient, an opening is formed on one side of the roller ring 10, an installation ring 15 is installed in the opening, and the distance between the through groove 12 and the closed side of the roller ring 10 is the same as the wall thickness of the roller ring 10, so that the limiting movement distance of the end of the paper is the same as the wall thickness of the roller ring 10, as shown in Figure 5As shown, the two side roller rings 10 are mirror arranged, the distance between the two innermost roller rings 10 is equal to twice the thickness of the roller ring 10, so as to ensure that the limiting space is small.

[0027] Further, as shown in Figure 8 and Figure 9 , the magnetic control assembly 14 includes an electromagnetic block 1401, a mounting sheet 1402, a limiting spring 1403, and a metal pushing block 1404. The mounting sheet 1402 is mounted on the inner wall of the inner ring groove 11 by the limiting spring 1403, the limiting piece 13 is mounted on the mounting sheet 1402, and the limiting spring 1403 can control the metal pushing block 1404 in the roller ring 10 in a normal state, so as to accommodate the limiting piece 13. The metal pushing block 1404 is a block structure with a narrow-to-wide surface that is arc-shaped on both sides. One side of the mounting sheet 1402 is in contact with the arc surface, and the narrower side of the metal pushing block 1404 is located below the mounting sheet 1402. The wider side of the metal pushing block 1404 is attached to the mounting ring 15. A guide rod 16 is mounted between the inner wall of the inner ring groove 11 and the mounting ring 15. A guide hole 17 is formed in the metal pushing block 1404, and the guide rod 16 is clamped in the guide hole 17. The electromagnetic block 1401 is mounted on the inner wall of the inner ring groove 11 and corresponds to the metal pushing block 1404. The metal pushing block 1404 can be made of metal iron. The electromagnetic block 1401 is electrically connected to an external power source or is provided with a power source in the roller ring 10, and is communicatively connected to a controller for easy control through the control panel 5. When it is necessary to control the limiting piece 13 to move out, the electromagnetic block 1401 in the roller ring 10 is started. The electromagnetic block 1401 can generate magnetic attraction and attract the metal pushing block 1404 to move. The metal pushing block 1404 can be magnetically attracted by the electromagnetic block 1401 and move towards the electromagnetic block 1401. When moving, the metal pushing block 1404 can push the mounting sheet 1402 and the limiting piece 13 upwards through the arc surface, so that the limiting piece 13 can move out of the roller ring 10. The two side limiting pieces 13 can limit the paper to prevent the paper from moving during the cutting process.

[0028] Further, as shown in Figure 8 and Figure 10 , the contact between the mounting sheet 1402 and the arc surface of the metal pushing block 1404 is arc-shaped, so as to ensure that the contact friction between the mounting sheet 1402 and the metal pushing block 1404 is small, thereby ensuring that the mounting sheet 1402 can be easily pushed upwards when the electromagnetic block 1401 attracts the metal pushing block 1404 to move.

[0029] Further, the metal pushing block 1404 is hollow, so as to reduce the weight of the metal pushing block 1404, thereby ensuring that the metal pushing block 1404 can move more easily and stably.

[0030] Further, as shown in Figure 2 and Figure 11 The bottom of the installation groove 8 is provided with a placing groove, and a oil cylinder 20 is installed in the placing groove. A positioning block 21 is arranged in the installation groove 8, and the positioning block 21 is installed at the output end of the oil cylinder 20. The end of the slitting roller 7 is clamped between the positioning block 21 and the inner wall of the installation groove 8. The slitting roller 7 can be fixed by the oil cylinder 20 and the positioning block 21, and the slitting roller 7 can be easily removed when the roller ring 10 is put in or taken out.

[0031] In a specific implementation, the paper with an initial length of 24 cm is cut into 12 cm paper, a cutting roller 7 is used, two guide rollers 6 are used, the guide roller 6 close to the cutting roller 7 is below the horizontal direction of the cutting roller 7, the guide roller 6 close to the cutting roller 7 is below the horizontal direction of the outer roller ring 10 of the cutting roller 7, 8-10, so that the paper can normally be placed on the outer roller ring 10 of the cutting roller 7 from above the guide roller 6, and the paper only contacts the blade 1301, the thickness of the roller ring 10 is 2 cm, the wall thickness of the roller ring 10 is 0.3 cm, the number of roller rings 10 of each roller ring sleeve set 9 on the front winding frame 3 is 16, the 16 roller rings 10 are evenly divided into two groups of mirror images, the number of roller rings 10 of each roller ring sleeve set 9 on the rear winding frame 3 is 8, the 8 roller rings 10 are evenly divided into two groups of mirror images, before processing, the uncut paper is first placed on the front winding frame 3, the paper is placed on the outer roller ring 10, and then the inner electromagnetic block 1401 of the roller ring 10 close to the outside is started, so that the electromagnetic block 1401 can generate magnetic attraction and attract the metal pushing block 1404 to move, the metal pushing block 1404 can be magnetically attracted by the electromagnetic block 1401 and move towards the electromagnetic block 1401, when moving, the metal pushing block 1404 can push the mounting piece 1402 and the limiting piece 13 upwards through the arc surface, so that the limiting piece 13 can move out of the roller ring 10, the two limiting pieces 13 can limit the paper to prevent the paper from moving obviously during cutting, the paper is sequentially placed below the first guide roller 6, above the second guide roller 6 and above the cutting roller 7, and the paper is placed on one of the roller ring sets 9 on the cutting roller 7, then the electromagnetic block 1401 in the roller ring 10 at one end of the paper and the edge of the center position is started, so that the electromagnetic block 1401 can generate magnetic attraction and attract the metal pushing block 1404 to move, the metal pushing block 1404 can be magnetically attracted by the electromagnetic block 1401 and move towards the electromagnetic block 1401, when moving, the metal pushing block 1404 can push the mounting piece 1402 and the blade 1301 upwards through the arc surface, so that the blade 1301 can move out of the roller ring 10, the other end of the complete paper does not need to be operated, only the cut paper is limited, and the other paper is automatically limited, then the cut paper is fixed to the rotating rod 304 on the rear winding frame 3, and under the drive of the servo motor 303, the paper can be wound, during winding, the blade 1301 automatically cuts the paper, and the two limiting pieces 13 on the front winding and the two blades 1301 on the cutting roller 7 can limit the uncut paper and the cut paper at the same time, so that the paper can be stable during the entire cutting process, under the control of the servo motor 303, the paper can be moved for cutting, thereby improving the product quality.

[0032] In the second embodiment, the above embodiment is further optimized, and the same parts as the previous technical solutions will not be described again. In order to better achieve the present application, the following setting mode is adopted. In a specific implementation, as Figure 1 and Figure 2 The upper part of the rear side of the rack 2 is also provided with a winding frame 3, and the winding frame 3 of the upper part of the rear side of the rack 2 is an upper winding frame 3 for winding the cut paper. The upper winding frame 3 can conveniently wind the cut paper, and can quickly distinguish different lengths of paper when cutting.

[0033] Further, the front lower part and the rear lower part of the main console 1 are provided with an end positioning assembly 18 for keeping the rotating rod 304 vertical. The end positioning assembly 18 includes a mounting seat 1801, a moving contact structure 1802, a fixed plate 1803, and an adjusting oil cylinder 1804. The mounting seat 1801 is mounted on the front side and the rear side of the main console 1. The fixed plate 1803 is mounted on the mounting seat 1801. The moving contact structure 1802 includes a moving side plate 18021 and a connecting shaft 18022 mounted on the moving side plate 18021. The adjusting oil cylinder 1804 is mounted on one side of the fixed plate 1803. The moving side plate 18021 is mounted on the output end of the adjusting oil cylinder 1804. One end of the rotating rod 304 is provided with a clamping groove 4, and the connecting shaft 18022 is clamped in the clamping groove 4. During cutting, the adjusting oil cylinder 1804 can control the clamping of the connecting shaft 18022 in the moving contact structure 1802 and the clamping groove 4 of the end of the rotating rod 304. Therefore, the use of the rotating rod 304 can be stable and safe. When the paper tube needs to be installed or removed, the adjusting oil cylinder 1804 can control the movement of the moving side plate 18021 and leave a little space between the moving side plate 18021 and the rotating shaft. Therefore, the paper can be easily put in and taken out.

[0034] Further, the upper part of the rear side of the main console 1 is provided with a moving contact structure 1802. The moving contact structure 1802 of the upper part of the rear side of the main console 1 is connected with the moving contact structure 1802 of the lower part of the rear side of the main console 1 through a linkage rod 19. Therefore, the moving contact structure 1802 in the upper winding frame 3 and the rear winding frame 3 can be moved simultaneously through the linkage rod 19.

[0035] The above is only a preferred embodiment of the present application, which is only illustrative but not limiting. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope of the present application as defined in the claims, and all will fall within the protection scope of the present application.

Claims

1. High speed paper slitter, characterized in that, The utility model relates to a kind of paper cutting and winding machine, including: Master console (1), control panel (5) is provided on the master console (1); Rack (2), the rack (2) is arranged in master console (1) side and space for setting spare parts is left between rack (2) and master console (1), a plurality of guide rollers (6) are installed between rack (2) and master console (1), at least one slitting roller (7) is provided between rack (2) and master console (1), the slitting roller (7) is located in the rear side of guide roller (6), and installation slot (8) is formed in the rear side of master console (1) and rack (2), and the slitting roller (7) is respectively clamped in both ends in both sides installation slot (8); Two groups of winding frames (3), two groups of winding frames (3) are respectively provided in the front side and rear side of rack (2), and the winding frame (3) in the front side of rack (2) is front winding frame (3) for placing unslitting paper, and the winding frame (3) in the rear side of rack (2) is rear winding frame (3) for winding paper after slitting, the winding frame (3) includes fixed seat (301), installation side plate (302), servo motor (303) and rotating rod (304), the fixed seat (301) is installed in the front side of rack (2), the installation side plate (302) is installed in the top of fixed seat (301), the servo motor (303) is installed in one side of installation side plate (302), and the rotating rod (304) is installed in the output end of servo motor (303), and two rotating rods (304) are respectively located in the front side and rear side of guide roller (6); The slitting roller (7) and the rotating rod (304) in front winding frame (3) are fixedly installed with a plurality of roller ring sleeve kits (9) for limiting and cutting paper, the roller ring sleeve kit (9) is sequentially fixed with a plurality of roller rings (10), the inner ring groove (11) is provided in the roller ring (10), three through grooves (12) are evenly formed between the inner ring groove (11) and the outer wall of roller ring (10), the limiting piece (13) is provided in the through groove (12), the limiting piece (13) in the top of roller ring (10) on slitting roller (7) is blade (1301), the inner ring groove (11) is provided with magnetic attraction control assembly (14) for controlling the position of limiting piece (13).

2. The high speed paper slitter as claimed in claim 1, wherein, The roller ring (10) is provided with an opening on one side, and the opening is provided with an installation ring (15).

3. The high speed paper slitter as claimed in claim 2, wherein, The magnetic attraction control assembly (14) comprises an electromagnetic block (1401), a mounting sheet (1402), a limiting spring (1403) and a metal pushing block (1404), the mounting sheet (1402) is mounted on the inner wall of the inner ring groove (11) through the limiting spring (1403), the limiting piece (13) is mounted on the mounting sheet (1402), the metal pushing block (1404) is a block-shaped structure with arc surfaces on both sides of which the width gradually increases, one side of the mounting sheet (1402) is in contact with the arc surface, the narrower side of the metal pushing block (1404) is located below the mounting sheet (1402), and the wider side of the metal pushing block (1404) is attached to the mounting ring (15), a guide rod (16) is mounted between the inner wall of the inner ring groove (11) and the mounting ring (15), a guide hole (17) is formed in the metal pushing block (1404), the guide rod (16) is clamped in the guide hole (17), and the electromagnetic block (1401) is mounted on the inner wall of the inner ring groove (11) and corresponds to the metal pushing block (1404).

4. The high speed paper slitter as claimed in claim 3, wherein, The contact between the mounting sheet (1402) and the arc surface of the metal pushing block (1404) is arc-shaped.

5. The high speed paper slitter as claimed in claim 3, wherein, The metal pushing block (1404) is a hollow structure.

6. The high speed paper slitter as claimed in claim 3, wherein, The upper part of the rear side of the rack (2) is also provided with a winding frame (3), and the winding frame (3) on the upper part of the rear side of the rack (2) is an upper winding frame (3) for winding the cut paper.

7. The high speed paper slitter as claimed in claim 6, wherein, The front lower part and the rear lower part of the main console (1) are provided with end positioning assemblies (18) for keeping the rotating rod (304) stable in the vertical direction, the end positioning assembly (18) comprises a mounting seat (1801), a moving contact structure (1802), a fixed plate (1803) and an adjusting oil cylinder (1804), the mounting seat (1801) is mounted on the front side and the rear side of the main console (1), the fixed plate (1803) is mounted on the mounting seat (1801), the moving contact structure (1802) comprises a moving side plate (18021) and a connecting rotating shaft (18022) mounted on the moving side plate (18021), the adjusting oil cylinder (1804) is mounted on one side of the fixed plate (1803), one end of the rotating rod (304) is provided with a clamping groove (4), and the connecting rotating shaft (18022) is clamped in the clamping groove (4).

8. The high speed paper slitter as claimed in claim 7, wherein, The rear upper part of the main console (1) is provided with a moving contact structure (1802), and the moving contact structure (1802) on the rear upper part of the main console (1) is connected with the moving contact structure (1802) on the rear lower part of the main console (1) through a linkage rod (19).

9. The high speed paper slitter as claimed in claim 3, wherein, The bottom of the mounting groove (8) is provided with a placing groove, an oil cylinder (20) is mounted in the placing groove, a positioning supporting block (21) is arranged in the mounting groove (8), the positioning supporting block (21) is mounted at the output end of the oil cylinder (20), and the slitting roller (7) is clamped between the positioning supporting block (21) and the inner wall of the mounting groove (8).

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