Spacing-adjustable paper tube core slitting device

Abstract

The invention relates to the technical field of paper tube core processing, in particular to a distance-adjustable paper tube core slitting device. A left end shaft is rotationally connected to a cutting frame on the left side; the right end shaft is rotationally connected to the cutting frame on the right side. The right end of the right end shaft penetrates through the cutting frame on the right side and then is connected with an output shaft of a cutting disc driving motor, and the cutting disc driving motor is fixed to the cutting frame on the right side. The middle shafts are sequentially connected between the left end shaft and the right end shaft through the locking mechanism; and the cutting disc is detachably arranged on the intermediate shaft. When the slitting length of the paper tube core needs to be changed, the middle shaft and the cutting disc at the proper position are detached, then the middle shaft without the cutting disc is replaced and reinstalled at the position where the middle shaft is just detached, the middle shaft and the cutting disc at the position where the middle shaft needs to be detached are detached and replaced one by one, and then the slitting length can be adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of paper tube core processing, and in particular to a paper tube core slitting device with adjustable spacing. Background Art

[0002] After the paper tube core is wound and formed, it needs to be cut into sections using a slitting device. Currently, once the multiple cutting discs on the slitting device are installed, the spacing between them is fixed. To change the length of the cut paper tube core, the position of the multiple cutting discs must be manually adjusted. Furthermore, since the frame size of the entire slitting device is fixed, the range of adjustment is also limited. Once the maximum spacing of the slitting device is exceeded, the entire slitting device must be replaced, which is time-consuming and labor-intensive. Summary of the Invention

[0003] The purpose of the present invention is to address the defects and shortcomings of the prior art and provide a paper tube core slitting device with adjustable spacing, which can effectively solve the above technical problems.

[0004] To achieve the above-mentioned object, the present invention adopts the following technical solutions: it comprises a frame, support rollers, a cutting frame and a cutting frame drive motor; two support rollers are symmetrically arranged on the cutting table of the frame, the cutting frame drive motor is fixed to the outer wall of the frame, and the output end of the cutting frame drive motor is connected to the left and right cutting frames by a rotating shaft; it also comprises: A left end shaft, the left end shaft being rotatably connected to the cutting frame on the left side; A right end shaft, the right end shaft is rotatably connected to the cutting frame on the right side; and the right end of the right end shaft passes through the cutting frame on the right side and is connected to the output shaft of the cutting disk drive motor, and the cutting disk drive motor is fixed to the cutting frame on the right side; Intermediate shafts, which are multiple and are connected in sequence by a locking mechanism and arranged between the left end shaft and the right end shaft; A cutting disc is detachably arranged on the intermediate shaft.

[0005] With the above design, when the slitting length of the paper tube core needs to be changed, the intermediate shaft and cutting disc at the appropriate position are removed, and then the intermediate shaft without the cutting disc is replaced and reinstalled at the position that has just been removed. The disassembly and replacement of the intermediate shaft and cutting disc at the required disassembly position are completed one by one to achieve the adjustment of the slitting length.

[0006] Preferably, the locking mechanism comprises: A polygonal locking column, wherein the outer end of the polygonal column 17-1 is movably inserted into the polygonal locking groove; the polygonal locking column is movably inserted into one end of the middle shaft and the left end shaft respectively; the polygonal locking groove is respectively provided at the other end of the middle shaft and the right end shaft; A spring, one end of which is fixed in the polygonal locking column, and the other end is fixed on the electromagnet; the electromagnet is magnetically attracted to the polygonal locking column; the electromagnet is electrically connected to the battery; the switch is electrically controlled by the battery; the electromagnet is respectively fixed on the inner wall of one end of the intermediate shaft and the left end shaft, and the switch is respectively embedded in the shaft wall of the intermediate shaft and the left end shaft; a plug is embedded in the position of the slot port where the battery is provided.

[0007] With the above-mentioned design, when the intermediate shaft needs to be disassembled, the switch on the corresponding intermediate shaft is pressed. At this time, the electromagnet is energized and magnetized, and the inner end of the polygonal locking column is magnetically attracted. The outer end of the polygonal locking column is disengaged from the adjacent polygonal locking groove, and the adjacent intermediate shafts can be disengaged and split; when installation is required, the switch on the intermediate shaft to be installed is pressed. At this time, the electromagnet is de-energized and demagnetized, and the polygonal locking column pops out under the elastic force of the spring and engages with the adjacent polygonal locking groove.

[0008] Preferably, brackets are fixed to the left and right side walls of the frame, and a connecting shaft is provided between the left and right brackets; a number of rings are sleeved on the connecting shaft, an electric telescopic rod is fixed on the outer wall of the ring, a connecting rod is fixed to the output end of the electric telescopic rod, and arc-shaped magnet sheets are connected to the two support ends extending from the lower end of the connecting rod, and the arc-shaped magnet sheet is magnetically attracted to the intermediate shaft.

[0009] With the above-mentioned design, when it is necessary to disassemble or install the intermediate shaft, the electric telescopic rod is first used to drive the connecting rod to descend, thereby driving the arc-shaped magnet sheet to be magnetically attracted to the corresponding intermediate shaft below, thereby clamping the intermediate shaft instead of manual clamping. The locking mechanism is then closed, and the electric telescopic rod corresponding to the required disassembly position is retracted to drive the intermediate shaft and cutting disk at the corresponding position to rise away from the cutting axis position. The intermediate shaft without the cutting disk installed is then manually aligned with the vacant position, the corresponding locking mechanism is activated, and the new intermediate shaft is installed. This allows for the simultaneous disassembly of cutting disks and intermediate shafts at multiple disassembly positions.

[0010] Preferably, a limiting groove is provided through the shaft wall of the connecting shaft, and a clamping column is movably inserted into the ring wall of the collar, and the inner end of the clamping column is movably clamped in the limiting groove; magnets are fixed on the upper and lower side walls of the clamping column, and the magnets are movably magnetically attracted to the two inner end walls of the guide groove provided in the collar; one end of the connecting shaft passes through one of the brackets and is connected to the output shaft of the angle adjustment drive motor, and the angle adjustment drive motor is fixed on the bracket.

[0011] With the above design, after the electric telescopic rod retracts, the clamping column in the collar at the corresponding retracted position is manually pressed into the limit groove, thereby locking the collar and the connecting shaft at that position. Then, the angle adjustment drive motor is started to drive the locked collar to rotate a certain angle, thereby rotating the multiple disassembled intermediate shafts and the cutting disk away from the cutting axis. The cutting disk and the intermediate shaft can be replaced or maintained while the paper tube core is being cut.

[0012] Preferably, the inner end of the clamping column is an arc-shaped structure, which is arranged concentrically with the inner ring of the collar. When the clamping column is out of the limiting groove, its inner end is on the inner ring wall of the collar to avoid obstruction to the rotation of the connecting shaft.

[0013] Preferably, the cross-sections of the clamping column and the limiting groove are both arranged in a rectangular structure to prevent the clamping column from rotating axially and increase the stability of the clamping arrangement between the clamping column and the limiting groove.

[0014] Preferably, magnet sheets are provided between the connecting ends of the plurality of intermediate shafts and the left end shaft and the right end shaft to increase the firmness of the connection.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The machine uses multiple detachable intermediate shafts and cutting discs to adjust the slitting distances. Under the premise of the slitting mechanism size being fixed, it can adjust a variety of slitting lengths. It can also achieve slitting of different lengths at the same time. 2. The electromagnet is combined with a spring and a multi-prism locking column to realize the electric locking operation, which meets the needs of convenient disassembly and installation between the intermediate shafts and effectively ensures the normal cutting drive rotation; 3. The electric telescopic rod is used in conjunction with the arc-shaped magnet to fix the position of all the intermediate shafts at the same time, thereby realizing the simultaneous removal of intermediate shafts at multiple removal positions and effectively ensuring that the cutting axis position of the intermediate shafts at the unremoved positions remains unchanged, effectively improving the removal efficiency; 4. The angle adjustment drive motor is used in conjunction with the limit slot and the clamping column to realize the position adjustment of the intermediate shaft and the cutting disc at the disassembly position. After deviating from the cutting axis position, the cutting disc or the intermediate shaft can be maintained and replaced while the paper tube core is being cut, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a schematic diagram of the connection between the intermediate shaft and the cutting disc in the present invention.

[0018] Figure 3 It is a structural schematic diagram of the intermediate shaft in the present invention.

[0019] Figure 4 yes Figure 2 Axial section view of .

[0020] Figure 5 Schematic diagram of the structure of the collar and the clamping column in the present invention.

[0021] Figure 6 yes Figure 5 Cross-sectional view of .

[0022] Figure 7 This is a state diagram of the cutting disc at multiple disassembly positions and the intermediate shaft rotating at a certain angle in the present invention.

[0023] Figure 8 It is a cross-sectional view of the left end shaft in the present invention.

[0024] Figure 9 It is a cross-sectional view of the right end shaft in the present invention.

[0025] Description of reference numerals: Frame 1, support roller 2, cutting frame 3, cutting frame drive motor 4, cutting disc drive motor 5, left end shaft 6, right end shaft 7, cutting disc 8, intermediate shaft 9, bracket 10, angle adjustment drive motor 11, connecting shaft 12, limit groove 12-1, collar 13, guide groove 13-1, electric telescopic rod 14, connecting rod 15, arc-shaped magnet sheet 16, locking mechanism 17, polygonal prism locking column 17-1, spring 17-2, battery 17-3, switch 17-4, blockage 17-5, electromagnet 17-6, polygonal prism locking groove 17-7, clamping column 18, magnet 19. DETAILED DESCRIPTION

[0026] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments described are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0027] Example 1: Figures 1-4 As shown, this embodiment adopts the following technical solution: it includes a frame 1, support rollers 2, a cutting frame 3 and a cutting frame drive motor 4; two support rollers 2 are symmetrically arranged on the cutting table of the frame 1, and the cutting frame drive motor 4 is fixed to the outer wall of the frame 1. The output end of the cutting frame drive motor 4 is connected to the left and right cutting frames 3 by a rotating shaft; it also includes: A left end shaft 6, the left end shaft 6 is rotatably connected to the cutting frame 3 on the left side; The right end shaft 7 is rotatably connected to the cutting frame 3 on the right side; and the right end of the right end shaft 7 passes through the cutting frame 3 on the right side and is connected to the output shaft of the cutting disk drive motor 5, and the cutting disk drive motor 5 is fixed to the cutting frame 3 on the right side; Intermediate shaft 9, there are several intermediate shafts 9, and they are connected in sequence by means of a locking mechanism 17 and arranged between the left end shaft 6 and the right end shaft 7. Magnet sheets are arranged between several intermediate shafts 9 and the connecting ends of the left end shaft 6 and the right end shaft 7 to increase the firmness of the connection (the magnet sheets are not shown in the figure); the cutting disk 8 is detachably arranged on the intermediate shaft 9 by means of a key; the locking mechanism 17 comprises a polygonal locking column 17-1, a spring 17-2, a switch 17-4, a battery 17-3 and an electromagnet 17-6; the outer end of the polygonal column 17-1 is movably inserted into the polygonal locking groove 17-7 (the polygonal locking column 17-1 in the left end shaft 6 is inserted into the polygonal locking groove 17-7 at the left end of the first intermediate shaft 9 on the left; the polygonal locking column 17-1 in the first intermediate shaft 9 on the right is inserted into the polygonal locking groove 17-7 at the left end of the right end shaft 7); the remaining intermediate shafts 9 They all utilize the plug-in cooperation of the polygonal locking column 17-1 and the polygonal locking groove 17-7 to be detachably connected as a whole; the polygonal locking column 17-1 is movably arranged in one end of the intermediate shaft 9 and the left end shaft 6 respectively; the polygonal locking groove 17-7 is opened at the other end of the intermediate shaft 9 and the right end shaft 7 respectively; one end of the spring 17-2 is fixed in the polygonal locking column 17-1, and the other end is fixed on the electromagnet 17-6; the electromagnet 17-6 is magnetically attracted to the polygonal locking column 17-1; the electromagnet 17-6 is electrically connected to the battery 17-3; the switch 17-4 is electrically controlled and connected to the battery 17-3; the electromagnet 17-6 is fixed on the inner wall of one end of the intermediate shaft 9 and the left end shaft 6 respectively, and the switch 17-4 is embedded in the shaft wall of the intermediate shaft 9 and the left end shaft 6 respectively; a plug 17-5 is embedded at the port of the slot where the battery 17-3 is provided.

[0028] When using this embodiment, according to the length of the paper tube core to be cut, the intermediate shaft 9 and the cutting disk 8 at the appropriate position are removed, and then the intermediate shaft 9 without the cutting disk 8 is replaced and reinstalled to the position just removed, and the intermediate shaft 9 and the cutting disk 8 at the desired removal position are removed and replaced one by one; the specific operation is: first, press the switch 17-4 on the intermediate shaft 9 at the desired removal position, at this time the electromagnet 17-6 is energized to obtain magnetism, and the inner end of the polygonal locking column 17-1 is magnetically attracted, and the outer end of the polygonal locking column 17-1 is separated from the adjacent polygonal locking groove 17-7, so that the adjacent intermediate shafts can be removed. The intermediate shaft 9 is separated and split; the separated intermediate shaft 9 and cutting disk 8 are manually removed, and then the intermediate shaft 9 to be installed is placed in the vacant position, and the switch 17-4 on the intermediate shaft 9 to be installed is pressed. At this time, the electromagnet 17-6 is powered off and demagnetized, and the polygonal locking column 17-1 pops out under the elastic force of the spring 17-2, and engages with the adjacent polygonal locking groove 17-7 to complete the disassembly and replacement of the intermediate shaft 9 and cutting disk 8 at one disassembly position; then, the same method is used to disassemble and replace the intermediate shaft 9 and cutting disk 8 at the remaining required disassembly positions until the required cutting length is met.

[0029] Example 2: See Figure 5-Figure 9 As shown, this embodiment is a further improvement on the basis of the first embodiment. Specifically, a bracket 10 is fixed on the left and right side walls of the frame 1, and the bracket 10 is located above the cutting frame 3. A connecting shaft 12 is rotatably connected between the left and right brackets 10 by a bearing; a plurality of collars 13 are sleeved on the connecting shaft 12, and an electric telescopic rod 14 is fixed on the outer wall of the collar 13 (the electric telescopic rod 14 is connected to an external power supply or a main electric control box), and a connecting rod 15 is fixed to the output end of the electric telescopic rod 14. The two ends extending from the lower end of the connecting rod 15 are connected to arc-shaped magnet pieces 16 (providing space for the cutting disc 8), and the arc-shaped magnet piece 16 is magnetically attracted to the intermediate shaft 9; a limiting groove 12-1 is opened through the shaft wall of the connecting shaft 12, and a clamping column 1 is movably inserted on the ring wall of the collar 13 8. The inner end of the clamping column 18 is movably clamped with the limiting groove 12-1, and the inner end of the clamping column 18 is an arc-shaped structure, which is concentrically arranged with the inner ring of the collar 13. When the clamping column 18 is out of the limiting groove 12-1, its inner end is on the inner ring wall of the collar 13, avoiding obstruction to the rotation of the connecting shaft 12. At the same time, the cross-sections of the clamping column 18 and the limiting groove 12-1 are both rectangular structures, avoiding axial rotation of the clamping column 18 and increasing the stability of the clamping between the clamping column 18 and the limiting groove 12-1; magnets 19 are fixed on the upper and lower side walls of the clamping column 18, and the magnets 19 are movably magnetically attracted to the two inner end walls of the guide groove 13-1 provided in the collar 13; one end of the connecting shaft 12 passes through one of the brackets 10 and is connected to the output shaft of the angle adjustment drive motor 11, and the angle adjustment drive motor 11 is fixed on the bracket 10.

[0030] When using this embodiment, the electric telescopic rod 14 is first used to drive the connecting rod 15 to descend, thereby driving the arc-shaped magnet piece 16 to be magnetically attracted to the corresponding intermediate shaft 9 below, thereby clamping the intermediate shaft 9 (at this time, the cutting disk 8 is located between the two adjacent arc-shaped magnet pieces 16 at the lower end of the same connecting rod 15), replacing manual clamping, and then the locking mechanism 17 on the intermediate shaft 9 at the desired disassembly position is closed, and then the electric telescopic rod 14 corresponding to the desired disassembly position is retracted, driving the intermediate shaft 9 and the cutting disk 8 at the corresponding position to rise and leave the cutting axis position; then the clamping column 18 in the collar 13 at the corresponding retracted position is manually pressed into the limit groove 12-1 (at this time, the magnet 19 is magnetically attracted to the inner end surface of the guide groove 13-1 to ensure that the clamping column 18 will not fall when the connecting shaft 12 rotates), thereby achieving the clamping of the collar 13 and the connecting shaft 12 at this position. Lock (the magnets 19 in the remaining unengaged posts 18 are magnetically attracted to the outer end faces of the guide grooves 13-1 to ensure that the posts 18 will not slide when the connecting shaft 12 rotates; at the same time, the unpositioned collar 13 is always kept in a vertical downward position under the action of the gravity of the electric telescopic rod 14, the connecting rod 15 and the arc-shaped magnet sheet 16), and then the angle adjustment drive motor 11 is started to drive the locked collar 13 to rotate a certain angle, thereby rotating the multiple removed intermediate shafts 9 and the cutting disk 8 away from the cutting axis; then, the intermediate shaft 9 without the cutting disk 8 is manually aligned with the vacant position, and the corresponding locking mechanism 17 is started to install the new intermediate shaft 9. This embodiment can realize the simultaneous disassembly of the cutting disks 8 and the intermediate shaft 9 at multiple disassembly positions, and the cutting disk 8 and the intermediate shaft 9 can be replaced or maintained while the paper tube core is slitting.

[0031] Compared with the prior art, the beneficial effects of this specific embodiment are: 1. The machine uses multiple detachable intermediate shafts and cutting discs to adjust the slitting distances. Under the premise of the slitting mechanism size being fixed, it can adjust a variety of slitting lengths. It can also achieve slitting of different lengths at the same time. 2. The electromagnet is combined with a spring and a multi-prism locking column to realize the electric locking operation, which meets the needs of convenient disassembly and installation between the intermediate shafts and effectively ensures the normal cutting drive rotation; 3. The electric telescopic rod is used in conjunction with the arc-shaped magnet to fix the position of all the intermediate shafts at the same time, thereby realizing the simultaneous removal of intermediate shafts at multiple removal positions and effectively ensuring that the cutting axis position of the intermediate shafts at the unremoved positions remains unchanged, effectively improving the removal efficiency; 4. The angle adjustment drive motor is used in conjunction with the limit slot and the clamping column to realize the position adjustment of the intermediate shaft and the cutting disc at the disassembly position. After deviating from the cutting axis position, the cutting disc or the intermediate shaft can be maintained and replaced while the paper tube core is being cut, thereby improving work efficiency.

[0032] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A paper tube core slitting device with adjustable spacing, comprising a frame (1), a support roller (2), a cutting frame (3) and a cutting frame drive motor (4); two support rollers (2) are symmetrically arranged on the cutting table of the frame (1); a cutting frame drive motor (4) is fixed to the outer wall of the frame (1); an output end of the cutting frame drive motor (4) is connected to the left and right cutting frames (3) by a rotating shaft; and the device is characterized in that: It also contains: A left end shaft (6), the left end shaft (6) being rotatably connected to the cutting frame (3) on the left side; A right end shaft (7), the right end shaft (7) is rotatably connected to the right cutting frame (3); and the right end of the right end shaft (7) passes through the right cutting frame (3) and is connected to the output shaft of the cutting disk drive motor (5), and the cutting disk drive motor (5) is fixed to the right cutting frame (3); Intermediate shafts (9), wherein the intermediate shafts (9) are multiple and are sequentially connected by a locking mechanism (17) and are arranged between the left end shaft (6) and the right end shaft (7); a cutting disc (8), the cutting disc (8) being detachably arranged on the intermediate shaft (9); When the paper tube core slitting length needs to be changed, the intermediate shaft (9) and the cutting disc (8) at the appropriate position are removed, and then the intermediate shaft (9) without the cutting disc (8) is replaced and reinstalled at the position just removed. The intermediate shaft (9) and the cutting disc (8) at the required removal position are removed and replaced one by one to achieve the adjustment of the slitting length.

2. The paper tube core slitting device with adjustable spacing according to claim 1, characterized in that: The locking mechanism (17) comprises: A polygonal locking column (17-1), wherein the outer end of the polygonal locking column 17-1 is movably inserted into the polygonal locking groove (17-7); the polygonal locking column (17-1) is movably inserted into one end of the intermediate shaft (9) and the left end shaft (6); and the polygonal locking groove (17-7) is respectively provided at the other end of the intermediate shaft (9) and the right end shaft (7); A spring (17-2), one end of the spring (17-2) is fixed in the polygonal locking column (17-1), and the other end is fixed on the electromagnet (17-6); the electromagnet (17-6) and the polygonal locking column (17-1) are magnetically attracted; the electromagnet (17-6) is electrically connected to the battery (17-3); the switch (17-4) is electrically controlled and connected to the battery (17-3); the electromagnet (17-6) is respectively fixed to the inner wall of one end of the intermediate shaft (9) and the left end shaft (6), and the switch (17-4) is respectively embedded in the shaft wall of the intermediate shaft (9) and the left end shaft (6); a plug (17-5) is embedded in the end position of the slot body where the battery (17-3) is provided; When the intermediate shaft (9) needs to be disassembled, the switch (17-4) on the corresponding intermediate shaft (9) is pressed, and the electromagnet (17-6) is energized to obtain magnetism, magnetically attracting the inner end of the polygonal locking column (17-1), and the outer end of the polygonal locking column (17-1) is separated from the adjacent polygonal locking groove (17-7), thereby achieving the separation and splitting of the adjacent intermediate shaft (9); when installation is required, the switch (17-4) on the intermediate shaft (9) to be installed is pressed, and the electromagnet (17-6) is de-energized and de-magnetized, and the polygonal locking column (17-1) is ejected under the elastic force of the spring (17-2) and is mutually engaged with the adjacent polygonal locking groove (17-7).

3. The paper tube core slitting device with adjustable spacing according to claim 1, characterized in that: The left and right side walls of the frame (1) are both fixed with brackets (10), and a connecting shaft (12) is provided between the left and right brackets (10); a plurality of collars (13) are sleeved on the connecting shaft (12), an electric telescopic rod (14) is fixed on the outer wall of the collar (13), a connecting rod (15) is fixed to the output end of the electric telescopic rod (14), and arc-shaped magnet sheets (16) are connected to the two ends extending from the lower end of the connecting rod (15), and the arc-shaped magnet sheet (16) is magnetically attracted to the intermediate shaft (9); When the intermediate shaft (9) needs to be disassembled or installed, the electric telescopic rod (14) is first used to drive the connecting rod (15) to descend, thereby driving the arc-shaped magnet sheet (16) to magnetically attract the intermediate shaft (9) corresponding to the lower portion, thereby achieving clamping of the intermediate shaft (9) instead of manual clamping. The locking mechanism (17) is then closed, and the electric telescopic rod (14) corresponding to the desired disassembly position is retracted to drive the intermediate shaft (9) and the cutting disc (8) at the corresponding position to rise away from the cutting axis position. The intermediate shaft (9) without the cutting disc (8) installed is then manually aligned with the vacant position, the corresponding locking mechanism (17) is activated, and the new intermediate shaft (9) is installed, thereby achieving simultaneous disassembly of the cutting discs (8) and the intermediate shaft (9) at multiple disassembly positions.

4. The paper tube core slitting device with adjustable spacing according to claim 3, characterized in that: A limiting groove (12-1) is provided through the shaft wall of the connecting shaft (12); a clamping column (18) is movably inserted into the ring wall of the collar (13); the inner end of the clamping column (18) is movably clamped with the limiting groove (12-1); magnets (19) are fixed on the upper and lower side walls of the clamping column (18); the magnets (19) are movably attracted to the two inner end walls of the guide groove (13-1) provided in the collar (13); one end of the connecting shaft (12) passes through one of the brackets (10) and is connected to the output shaft of the angle adjustment drive motor (11); the angle adjustment drive motor (11) is fixed to the bracket (10); After the electric telescopic rod (14) is retracted, the clamping column (18) in the collar (13) at the corresponding retracted position is manually pressed into the limiting groove (12-1), thereby locking the collar (13) and the connecting shaft (12) at that position. Then, the angle adjustment drive motor (11) is started to drive the locked collar (13) to rotate a certain angle, thereby rotating the disassembled multiple intermediate shafts (9) and the cutting disc (8) away from the cutting axis. While the paper tube core is being cut, the cutting disc (8) and the intermediate shaft (9) are replaced or maintained.

5. The paper tube core slitting device with adjustable spacing according to claim 4, characterized in that: The inner end of the clamping column (18) is an arc-shaped structure, and the arc-shaped structure is arranged cocentrically with the inner ring of the collar (13).

6. The paper tube core slitting device with adjustable spacing according to claim 4, characterized in that: The cross sections of the clamping column (18) and the limiting groove (12-1) are both rectangular structures.

7. The paper tube core slitting device with adjustable spacing according to claim 1, characterized in that: Magnet pieces are provided between the plurality of intermediate shafts (9) and the connecting ends of the left end shaft (6) and the right end shaft (7).

Images