A feeding structure and its working method for a paper tube precision cutting machine

Abstract

This invention provides a feeding structure and its working method for a paper tube precision cutter, including a mounting box, a mounting block, and a mounting groove. A mounting block is fixedly connected to one end of the top surface of the mounting box. A mounting groove is formed on the surface of the mounting block, and a first motor is fixedly mounted on the surface of the mounting groove. A rotating disk is fixedly connected to the output end of the first motor. A cylinder is symmetrically mounted on the surface of the rotating disk. A second motor drives a second rotating column to rotate, thereby causing the paper tube to separate from the placement block, be placed on the surface of a support block, and then slide down to the surface of an arc-shaped block for positioning. Simultaneously, an arc-shaped rack meshes with a first gear, driving the first rotating column to rotate. A protrusion engages with a spiral groove, causing a rectangular block, a connecting block, and an arc-shaped block to move, feeding the paper tube to engage with the cylinder, thus improving precision cutting efficiency.

Description

Technical Field

[0001] This invention relates to the field of paper tube precision cutting machine technology, and in particular to a feeding structure and working method of a paper tube precision cutting machine. Background Technology

[0002] Paper tube precision cutting machines are commonly used equipment in the paper tube processing process. The precision cutting efficiency is determined not only by the slitting speed, but also by the feeding efficiency. Most existing paper tube precision cutting machines divide the feeding process into two steps: conveying and positioning the straight tube, and then feeding it to the designated position. These two steps are carried out separately, which affects the precision cutting efficiency.

[0003] Therefore, it is necessary to provide a feeding structure and working method for a paper tube precision cutting machine to solve the above-mentioned technical problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a feeding structure for a paper tube precision cutting machine, including a mounting box, a mounting block, and a mounting groove. A mounting block is fixedly connected to one end of the top surface of the mounting box. A mounting groove is formed on the surface of the mounting block. A first motor is fixedly mounted on the surface of the mounting groove. A rotating disk is fixedly connected to the output end of the first motor. A cylinder is symmetrically mounted on the surface of the rotating disk around its center. A cutting mechanism is fixedly mounted on the top surface of the mounting box next to the mounting block. A vertical plate is fixedly connected to the top surface of the mounting box. A feeding box is fixedly mounted on the surface of the vertical plate away from the mounting box. Vertical grooves are symmetrically formed on the surface of the feeding box. A discharging device is slidably mounted on the surface of the vertical grooves. A first feeding mechanism is slidably mounted on the top surface of the mounting box. An L-shaped plate is fixedly connected to the side of the mounting box. A second feeding mechanism is fixedly mounted on the surface of the L-shaped plate. The first feeding mechanism and the second feeding mechanism are installed together. The second feeding mechanism is fixedly connected to the top surface of the mounting box.

[0005] Preferably, the first feeding mechanism includes a connecting block, an arc-shaped block, a rectangular block, a through hole, a spiral groove, a protrusion, a first rotating column, a baffle, a first gear, a fixed plate, a first rack, a movable plate, a circular groove, an L-shaped column, a horizontal column, a first spring, a stop block, and a limiting strip. A fixed plate is fixedly connected to the end of the top upper surface of the mounting box away from the mounting block. The first gear is rotatably mounted on the surface of the fixed plate. The first rack is meshed with the outer side of the first gear. The first rotating column is fixedly connected to the surface of the first gear away from the fixed plate. A connecting block is slidably mounted on the top upper surface of the mounting box. A rectangular block is fixedly connected above the connecting block, and a through hole is formed on the surface of the rectangular block. The surface of the through hole is provided with a spiral groove, and a protrusion is installed at one end of the spiral groove. The protrusion is fixedly connected to the first rotating column. An arc block is fixedly connected above the rectangular block. A baffle is fixedly connected at one end of the surface of the arc block. A movable plate is fixedly connected below the first rack. A circular groove is provided on the side of the movable plate. A horizontal column is slidably connected to the surface of the circular groove. A first spring is sleeved on the surface of the horizontal column. An L-shaped column is fixedly connected at one end of the horizontal column. Limiting strips are symmetrically slidably connected to the surface of the movable plate. Both limiting strips are fixedly connected to the top surface of the mounting box. A stop block is installed at one end of the movable plate. The stop block is fixedly connected to the top surface of the mounting box.

[0006] Preferably, a limiting post is slidably installed inside the connecting block, and the limiting post is fixedly connected to the top surface of the mounting box.

[0007] Preferably, the second feeding mechanism includes a motor base, a second motor, a disc, an arc-shaped rack, a second rotating column, a vertical plate, a first arc-shaped groove, a second arc-shaped groove, a T-shaped column, a vertical column, a column groove, a second spring, a groove, a support block, and a circular block. The motor base is fixedly connected to the surface of the L-shaped plate, and the second motor is fixedly connected above the motor base. The output end of the second motor is fixedly connected to the second rotating column, which is rotatably mounted to the L-shaped plate. A disc is fixedly connected to one end of the surface of the second rotating column, and an arc-shaped rack is fixedly connected to the surface of the disc. A vertical plate is symmetrically mounted on the surface of the column. The surface of the vertical plate has a first arc-shaped groove and a second arc-shaped groove. The first arc-shaped groove and the second arc-shaped groove are connected. A circular block is installed on the surface of the second arc-shaped groove. A column is fixedly connected to the surface of the circular block. A column groove is opened on the surface of the column groove. A T-shaped column is slidably connected to the surface of the column groove. A second spring is sleeved on the surface of the T-shaped column. One end of each of the two T-shaped columns is fixedly connected to a second rotating column. A groove is opened on the end of each of the two columns away from the second rotating column. A support block is installed on the surface of the groove through a torsion spring.

[0008] Preferably, the surface of the support block is L-shaped, and the surface of the support block is provided with inclined grooves.

[0009] Preferably, the second spring is initially in a compressed state.

[0010] Preferably, the feeding device includes a lifting block, a lifting column, a third spring, and a placement block. The lifting block is slidably connected to the surface of the vertical groove, and the lifting column is fixedly connected to the bottom of the lifting block. The third spring is sleeved on the surface of the lifting column, and the placement block is fixedly connected to the end of the lifting column away from the lifting block.

[0011] The present invention also provides a method for operating the feeding structure of a paper tube precision cutter, the method comprising the following steps:

[0012] 1) Multiple paper tubes are placed inside the feed hopper. Due to their own gravity, the lower paper tubes contact the surface of the placement block, which is tilted to position the paper tubes. During this process, the placement block moves downwards, and the lifting column and lifting block move downwards along with the placement block. The third spring is compressed, and the resulting reaction force acts on the surface of the lifting block, supporting the paper tubes. The second motor drives the second rotating column to rotate, and the disc and two T-shaped columns rotate along with the second rotating column. The arc-shaped rack rotates with the disc. The column rotates along with the T-shaped column. The circular block moves relative to the first and second arc grooves. When the circular block contacts the second arc groove, the support block contacts the surface of the paper tube. Then, it drives the paper tube to move. The paper tube moves relative to the surface of the placement block, which drives the placement block to move downward and separates from the placement block, making complete contact with the surface of the support block. The paper tube is positioned by the two support blocks. The surface of the support block has an inclined groove. When the support block moves above the arc block, the paper tube slides from the inclined groove surface to the surface of the arc block.

[0013] 2) Simultaneously, the disc continues to rotate, the arc-shaped rack meshes with the first gear, driving the first gear to rotate. The first gear meshes with the first rack, thereby driving the movable plate to move. Relative sliding occurs between the horizontal column and the circular groove. The first spring is compressed, and the first rotating column rotates with the first gear, thereby driving the protrusion to rotate. The protrusion engages with the spiral groove, driving the rectangular block to move. Relative sliding occurs between the connecting block and the limiting column. Due to the blocking effect of the baffle, the paper tube engages with the cylinder. During this process, the circular block engages with the first arc-shaped groove again, and the support block contacts the surface of the rectangular block and moves relative to it. The rectangular block cannot block the rotation of the column. When the arc-shaped rack separates from the first gear, the other end of the spiral groove engages with the protrusion. Under the elastic force of the first spring, the movable plate, rectangular block, arc block, and connecting block can be reset to their initial positions, and then the next feeding can begin. The first motor drives the rotating disc to rotate, adjusting the positions of the three cylinders. The cutting mechanism then cuts the cylinders and unloads them.

[0014] Compared with the prior art, the present invention provides a feeding structure and working method for a paper tube precision cutting machine, which has the following beneficial effects:

[0015] 1. In this invention, the second motor drives the second rotating column to rotate, thereby causing the paper tube to separate from the placement block, place it on the surface of the support block, and then slide it onto the surface of the arc-shaped block for positioning. At the same time, the arc-shaped rack meshes with the first gear, driving the first rotating column to rotate. The protrusion and the spiral groove cooperate to drive the rectangular block, the connecting block and the arc-shaped block to move, feeding the paper tube so that it cooperates with the cylinder, thereby improving the precision cutting efficiency.

[0016] 2. The present invention utilizes the elastic force of the first spring to facilitate the reset of the arc-shaped block, avoiding affecting the next placement and positioning. After the arc-shaped block is reset, the first motor drives the rotating disk to rotate and place it at the cutting position, where the cutting mechanism performs the cutting. The cut straight tube is then fed into the feeder, while another paper tube is fed into the feeder. The entire process is continuous, further improving the precision cutting efficiency. Attached Figure Description

[0017] Figure 1 This is one of the overall structural schematic diagrams of the present invention;

[0018] Figure 2 This is a schematic diagram of the support block structure of the present invention;

[0019] Figure 3 This is the second schematic diagram of the overall structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the stop structure of the present invention;

[0021] Figure 5 This is the third schematic diagram of the overall structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the feeding device structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the first and second arc-shaped grooves of the present invention;

[0024] Figure 8 This is a schematic diagram of the spiral groove structure of the present invention;

[0025] Figure 9 This is a schematic diagram of the bump structure of the present invention.

[0026] In the diagram: 1. Mounting box; 2. Mounting block; 3. Mounting groove; 4. First motor; 5. Rotating disk; 6. Cylinder; 7. Cutting mechanism; 8. Vertical plate; 9. Feeding box; 10. Vertical groove; 11. Discharging device; 12. First feeding mechanism; 13. L-shaped plate; 14. Second feeding mechanism; 15. Connecting block; 16. Arc-shaped block; 17. Rectangular block; 18. Through hole; 19. Spiral groove; 20. Protrusion; 21. First rotating column; 22. Baffle; 23. First gear; 24. Fixed plate; 25. First rack; 26. Movable plate; 27. Circle 28. L-shaped groove; 29. ​​L-shaped column; 30. Horizontal column; 31. First spring; 32. Stop block; 33. Limiting strip; 34. Limiting column; 35. Motor base; 36. Second motor; 37. Disc; 38. Arc-shaped rack; 39. Second rotating column; 40. Vertical plate; 41. First arc-shaped groove; 42. Second arc-shaped groove; 43. T-shaped column; 44. Vertical column; 45. Column groove; 46. Second spring; 47. Groove; 48. Support block; 49. Circular block; 50. Inclined groove; 51. Lifting block; 52. Lifting column; 53. Third spring; 54. Storage block. Detailed Implementation

[0027] Please see Figures 1 to 9 This invention relates to a feeding structure for a paper tube precision cutting machine, comprising a mounting box 1, a mounting block 2, and a mounting groove 3. The mounting block 2 is fixedly connected to one end of the top upper surface of the mounting box 1. The mounting groove 3 is formed on the surface of the mounting block 2. A first motor 4 is fixedly mounted on the surface of the mounting groove 3. A rotating disk 5 is fixedly connected to the output end of the first motor 4. A cylinder 6 is symmetrically mounted on the surface of the rotating disk 5 around its center. A cutting mechanism 7 is fixedly mounted on the top upper surface of the mounting box 1 next to the mounting block 2. A vertical plate 8 is fixedly connected to the top upper surface of the mounting box 1. A feeding box 9 is fixedly mounted on the surface of the vertical plate 8 away from the mounting box 1. Vertical grooves 10 are symmetrically formed on the surface of the feeding box 9. A feeding device 11 is slidably mounted on the surface of the vertical grooves 10. A first feeding mechanism 12 is slidably mounted on the top upper surface of the mounting box 1. An L-shaped plate 13 is fixedly connected to the side of the mounting box 1. A second feeding mechanism 14 is fixedly mounted on the surface of the L-shaped plate 13. The first feeding mechanism 12 and the second feeding mechanism 14 are fitted together and installed together. The second feeding mechanism 14 is fixedly connected to the top upper surface of the mounting box 1.

[0028] The first feeding mechanism 12 includes a connecting block 15, an arc-shaped block 16, a rectangular block 17, a through hole 18, a spiral groove 19, a protrusion 20, a first rotating column 21, a baffle 22, a first gear 23, a fixed plate 24, a first rack 25, a movable plate 26, a circular groove 27, an L-shaped column 28, a horizontal column 29, a first spring 30, a stop block 31, and a limiting strip 32. A fixed plate 24 is fixedly connected to the top upper surface of the mounting box 1 at the end away from the mounting block 2. A first gear 23 is rotatably mounted on the surface of the fixed plate 24. A first rack 25 is meshed with the outer side of the first gear 23. A first rotating column 21 is fixedly connected to the surface of the first gear 23 away from the fixed plate 24. A connecting block 15 is slidably mounted on the top upper surface of the mounting box 1. A rectangular block 17 is fixedly connected above the connecting block 15. A through hole 18 is formed on the surface of the rectangular block 17, and a spiral groove 19 is formed on the surface of the through hole 18. A spiral groove 19 has a protrusion 20 installed at one end of its surface. The protrusion 20 is fixedly connected to the first rotating column 21. An arc-shaped block 16 is fixedly connected above the rectangular block 17. A baffle 22 is fixedly connected to one end of the surface of the arc-shaped block 16. A movable plate 26 is fixedly connected below the first rack 25. A circular groove 27 is opened on the side of the movable plate 26. A horizontal column 29 is slidably connected to the surface of the circular groove 27. A first spring 30 is sleeved on the surface of the horizontal column 29. An L-shaped column 28 is fixedly connected to one end of the horizontal column 29. Limiting strips 32 are symmetrically slidably connected to the surface of the movable plate 26. Both limiting strips 32 are fixedly connected to the top surface of the mounting box 1. A stop block 31 is installed at one end of the movable plate 26. The stop block 31 is fixedly connected to the top surface of the mounting box 1. It can feed the paper tube while the paper tube is placed and positioned, so that the paper tube can cooperate with the cylindrical column 6.

[0029] A limiting post 33 is slidably installed inside the connecting block 15. The limiting post 33 is fixedly connected to the top surface of the mounting box 1, which serves to limit the movement and ensure the stability of the connecting block 15 when it slides.

[0030] The second feeding mechanism 14 includes a motor base 34, a second motor 35, a disc 36, an arc-shaped rack 37, a second rotating column 38, a vertical plate 39, a first arc-shaped groove 40, a second arc-shaped groove 41, a T-shaped column 42, a vertical column 43, a column groove 44, a second spring 45, a groove 46, a support block 47, and a circular block 48. The motor base 34 is fixedly connected to the surface of the L-shaped plate 13. The second motor 35 is fixedly connected above the motor base 34. The output end of the second motor 35 is fixedly connected to the second rotating column 38. The second rotating column 38 is rotatably mounted to the L-shaped plate 13. A disc 36 is fixedly connected to one end of the surface of the second rotating column 38. An arc-shaped rack 37 is fixedly connected to the surface of the disc 36. The vertical plate 39 is symmetrically rotatably mounted on the surface of the second rotating column 38. The surface of the 39 has a first arc-shaped groove 40 and a second arc-shaped groove 41. The first arc-shaped groove 40 and the second arc-shaped groove 41 are connected. A circular block 48 is installed on the surface of the second arc-shaped groove 41. A column 43 is fixedly connected to the surface of the circular block 48. A column groove 44 is opened on the surface of the column groove 44. A T-shaped column 42 is slidably connected to the surface of the column groove 44. A second spring 45 is sleeved on the surface of the T-shaped column 42. One end of each of the two T-shaped columns 42 is fixedly connected to the second rotating column 38. A groove 46 is opened on the end of each of the two columns 43 away from the second rotating column 38. A support block 47 is installed on the surface of the groove 46 through a torsion spring, which plays the role of feeding. As the second rotating column 38 rotates, the paper tube can be quickly placed on the surface of the arc-shaped block 16 to complete the feeding.

[0031] The surface of the support block 47 is L-shaped, and the surface of the support block 47 is provided with inclined grooves 49 to facilitate the paper tube to slide from the surfaces of the two support blocks 47 to the surface of the arc block 16.

[0032] The second spring 45 is initially compressed, ensuring that there is enough force to act on the surface of the T-shaped post 42, so that the circular block 48 can stably cooperate with the first arc groove 40 and the second arc groove 41.

[0033] The feeding device 11 includes a lifting block 50, a lifting column 51, a third spring 52, and a placement block 53. The lifting block 50 is slidably connected to the surface of the vertical groove 10. The lifting column 51 is fixedly connected to the lower part of the lifting block 50. The third spring 52 is sleeved on the surface of the lifting column 51. The placement block 53 is fixedly connected to the end of the lifting column 51 away from the lifting block 50. The elastic force of the third spring 52 can support the paper tube, making it easy to place and position the paper tube.

[0034] The present invention also provides a method for operating the feeding structure of a paper tube precision cutter, the method comprising the following steps:

[0035] 1) Multiple paper tubes are placed inside the feed box 9. Due to their own gravity, the lower paper tubes contact the surface of the placement block 53. The placement block 53 is tilted to position the paper tubes. During this process, the placement block 53 moves downward, and the lifting column 51 and lifting block 50 move downward together with the placement block 53. The third spring 52 is compressed, and the resulting reaction force acts on the surface of the lifting block 50, providing support for the paper tubes. The second motor 35 drives the second rotating column 38 to rotate. The disc 36 and the two T-shaped columns 42 rotate with the second rotating column 38. The arc-shaped rack 37 rotates with the disc 36. The column 4... 3. As the T-shaped column 42 rotates, the circular block 48 moves relative to the first arc groove 40 and the second arc groove 41. When the circular block 48 contacts the second arc groove 41, the support block 47 contacts the surface of the paper tube. Then, it drives the paper tube to move. The paper tube moves relative to the surface of the placement block 53, which drives the placement block 53 to move downward and then separates from the placement block 53, making complete contact with the surface of the support block 47. The two support blocks 47 place and position the paper tube. The surface of the support block 47 is provided with an inclined groove 49. When the support block 47 moves above the arc block 16, the paper tube slides from the surface of the inclined groove 49 to the surface of the arc block 16.

[0036] 2) Simultaneously, the disc 36 continues to rotate, the arc-shaped rack 37 meshes with the first gear 23, driving the first gear 23 to rotate. The first gear 23 meshes with the first rack 25, thereby driving the movable plate 26 to move. Relative sliding occurs between the horizontal column 29 and the circular groove 27, the first spring 30 is compressed, and the first rotating column 21 rotates with the first gear 23, thereby driving the protrusion 20 to rotate. The protrusion 20 engages with the spiral groove 19, driving the rectangular block 17 to move. Relative sliding occurs between the connecting block 15 and the limiting column 33. Due to the blocking effect of the baffle 22, the paper tube engages with the cylinder 6. During this process… The circular block 48 engages with the first arc groove 40 again, the support block 47 contacts the surface of the rectangular block 17 and moves relative to it, the rectangular block 17 cannot block the rotation of the column 43, when the arc rack 37 separates from the first gear 23, the other end of the spiral groove 19 engages with the protrusion 20, under the elastic force of the first spring 30, the movable plate 26, the rectangular block 17, the arc block 16 and the connecting block 15 can be reset to the initial position, and then the next feeding can be carried out. The first motor 4 drives the rotating disk 5 to rotate, adjusts the position of the three cylinders 6, cuts them by the cutting mechanism 7, and then unloads them.

[0037] It should be noted that:

[0038] The cutting mechanism 7 is similar in structure to the cutting device of the existing paper tube precision cutter. Its operation is the same and it is a mature technology. A controller can be installed on the surface of the mounting box 1. The first motor 4, the second motor 35 and the cutting mechanism 7 are all connected to the controller through wires. The controller is precisely controlled by a computer or other control terminal.

[0039] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A feeding structure for a paper tube precision cutting machine, comprising a mounting box (1), a mounting block (2), and a mounting groove (3), wherein the mounting block (2) is fixedly connected to one end of the top upper surface of the mounting box (1), and the mounting groove (3) is provided on the surface of the mounting block (2), characterized in that, A first motor (4) is fixedly installed on the surface of the mounting slot (3). A rotating disk (5) is fixedly connected to the output end of the first motor (4). A cylinder (6) is symmetrically mounted on the surface of the rotating disk (5) around the center. A cutting mechanism (7) is fixedly installed on the top surface of the mounting box (1) next to the mounting block (2). A vertical plate (8) is fixedly connected to the top surface of the mounting box (1). A feeding box (9) is fixedly installed on the surface of the vertical plate (8) away from the mounting box (1). A vertical groove (10) is symmetrically opened on the surface of the feeding box (9). A feeding device (11) is slidably installed on the surface of the vertical groove (10). A first feeding mechanism (12) is slidably installed on the top surface of the mounting box (1). An L-shaped plate (13) is fixedly connected to the side of the mounting box (1). A second feeding mechanism (14) is fixedly installed on the surface of the L-shaped plate (13). The first feeding mechanism (12) and the second feeding mechanism (14) are installed together. The second feeding mechanism (14) is fixedly connected to the top surface of the mounting box (1). The first feeding mechanism (12) includes a connecting block (15), an arc-shaped block (16), a rectangular block (17), a through hole (18), a spiral groove (19), a protrusion (20), a first rotating column (21), a baffle (22), a first gear (23), a fixed plate (24), a first rack (25), a movable plate (26), a circular groove (27), an L-shaped column (28), a horizontal column (29), a first spring (30), a stop block (31), and a limiting strip (32). The top upper surface of the mounting box (1) is away from the mounting block. (2) One end is fixedly connected to a fixing plate (24), and a first gear (23) is rotatably mounted on the surface of the fixing plate (24). A first rack (25) is meshed with the outer side of the first gear (23). A first rotating column (21) is fixedly connected to the surface of the first gear (23) away from the fixing plate (24). A connecting block (15) is slidably mounted on the upper surface of the top of the mounting box (1). A rectangular block (17) is fixedly connected above the connecting block (15). A through hole is opened on the surface of the rectangular block (17). (18) A spiral groove (19) is provided on the surface of the through hole (18). A protrusion (20) is installed at one end of the surface of the spiral groove (19). The protrusion (20) is fixedly connected to the first rotating column (21). An arc block (16) is fixedly connected above the rectangular block (17). A baffle (22) is fixedly connected at one end of the surface of the arc block (16). A movable plate (26) is fixedly connected below the first rack (25). A circular groove (27) is provided on the side of the movable plate (26). A horizontal column (29) is slidably connected to the surface of the circular groove (27). A first spring (30) is sleeved on the surface of the horizontal column (29). An L-shaped column (28) is fixedly connected to one end of the horizontal column (29). Limiting strips (32) are symmetrically slidably connected to the surface of the movable plate (26). Both limiting strips (32) are fixedly connected to the top surface of the mounting box (1). A stop block (31) is installed at one end of the movable plate (26). The stop block (31) is fixedly connected to the top surface of the mounting box (1).

2. The feeding structure of a paper tube precision cutting machine according to claim 1, characterized in that: The connecting block (15) has a sliding limit post (33) installed inside, and the limit post (33) is fixedly connected to the top surface of the mounting box (1).

3. The feeding structure of a paper tube precision cutting machine according to claim 1, characterized in that: The second feeding mechanism (14) includes a motor base (34), a second motor (35), a disc (36), an arc-shaped rack (37), a second rotating column (38), a vertical plate (39), a first arc-shaped groove (40), a second arc-shaped groove (41), a T-shaped column (42), a column (43), a column groove (44), a second spring (45), a groove (46), a support block (47), and a circular block (48). The L-shaped plate (13) is fixedly connected to the surface of the motor base (34). The second motor (35) is fixedly connected above the motor base (34). The output end of the second motor (35) is fixedly connected to the second rotating column (38). The second rotating column (38) is rotatably mounted to the L-shaped plate (13). One end of the surface of the second rotating column (38) is fixedly connected to the disc (36). The surface of the disc (36) is fixedly connected to the arc-shaped rack (37). A vertical plate (39) is symmetrically mounted on the surface of the second rotating column (38). The surface of the vertical plate (39) is provided with a first arc groove (40) and a second arc groove (41). The first arc groove (40) and the second arc groove (41) are connected. A circular block (48) is fitted on the surface of the second arc groove (41). A column (43) is fixedly connected to the surface of the circular block (48). A column groove (44) is provided on the surface of the column (43). A T-shaped column (42) is slidably connected to the surface of the column groove (44). A second spring (45) is sleeved on the surface of the T-shaped column (42). One end of each of the two T-shaped columns (42) is fixedly connected to the second rotating column (38). A groove (46) is provided on the end of each of the two columns (43) away from the second rotating column (38). A support block (47) is installed on the surface of the groove (46) by a torsion spring.

4. The feeding structure of a paper tube precision cutting machine according to claim 3, characterized in that: The surface of the support block (47) is L-shaped, and the surface of the support block (47) is provided with inclined grooves (49).

5. The feeding structure of a paper tube precision cutting machine according to claim 3, characterized in that: The second spring (45) is initially in a compressed state.

6. The feeding structure of a paper tube precision cutting machine according to claim 1, characterized in that: The feeding device (11) includes a lifting block (50), a lifting column (51), a third spring (52), and a placement block (53). The lifting block (50) is slidably connected to the surface of the vertical groove (10). The lifting column (51) is fixedly connected to the lower part of the lifting block (50). The third spring (52) is sleeved on the surface of the lifting column (51). The placement block (53) is fixedly connected to the end of the lifting column (51) away from the lifting block (50).

7. A method for operating a feeding structure of a paper tube precision cutter, comprising the feeding structure of the paper tube precision cutter as described in any one of claims 1-6, characterized in that, The working method of the feeding structure of the paper tube precision cutting machine includes the following steps: 1) Multiple paper tubes are placed inside the feed box (9). Due to their own gravity, the paper tubes at the bottom contact the surface of the placement block (53). The placement block (53) is tilted to position the paper tubes. During this process, the placement block (53) moves downward, and the lifting column (51) and lifting block (50) move downward together with the placement block (53). The third spring (52) is compressed, and the resulting reaction force acts on the surface of the lifting block (50) to support the paper tubes. The second motor (35) drives the second rotating column (38) to rotate. The disc (36) and the two T-shaped columns (42) rotate with the second rotating column (38). The arc-shaped rack (37) rotates with the disc (36). The column (43) rotates. As the T-shaped column (42) rotates, the circular block (48) moves relative to the first arc groove (40) and the second arc groove (41). When the circular block (48) contacts the second arc groove (41), the support block (47) contacts the surface of the paper tube. Then, the paper tube moves and the paper tube moves relative to the surface of the placement block (53), causing the placement block (53) to move downward and separate from the placement block (53), completely contacting the surface of the support block (47). The paper tube is positioned by the two support blocks (47). The surface of the support block (47) is provided with a slanted groove (49). When the support block (47) moves above the arc block (16), the paper tube slides from the surface of the slanted groove (49) to the surface of the arc block (16). 2) Simultaneously, the disc (36) continues to rotate, the arc-shaped rack (37) meshes with the first gear (23), driving the first gear (23) to rotate. The first gear (23) meshes with the first rack (25), thereby driving the movable plate (26) to move. The horizontal column (29) and the circular groove (27) slide relative to each other. The first spring (30) is compressed, and the first rotating column (21) rotates with the first gear (23), thereby driving the protrusion (20) to rotate. The protrusion (20) engages with the spiral groove (19), driving the rectangular block (17) to move. The connecting block (15) and the limiting column (33) slide relative to each other. Due to the blocking effect of the baffle (22), the paper tube engages with the cylinder (6). During this process... The circular block (48) and the first arc groove (40) cooperate again, the support block (47) will contact the surface of the rectangular block (17) and generate relative movement. The rectangular block (17) cannot block the rotation of the column (43). When the arc rack (37) and the first gear (23) separate, the other end of the spiral groove (19) cooperates with the protrusion (20). Under the elastic force of the first spring (30), the movable plate (26), the rectangular block (17), the arc block (16) and the connecting block (15) can be reset to the initial position, and then the next feeding is carried out. The first motor (4) drives the rotating disk (5) to rotate, and adjusts the position of the three cylinders (6). The cutting mechanism (7) cuts them and then unloads them.

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