A paper perforating device

Abstract

The application relates to a paper punching device and relates to the paper processing technical field.The paper punching device comprises a paper releasing part, a punching part and a winding part arranged in sequence along the horizontal direction, the paper releasing part is used for releasing paper, the winding part is used for winding the paper after punching, the punching part comprises a rack, a punching motor, a punching needle roller, a driving motor and a felt roller, the punching motor is arranged on the rack, the output end of the punching motor penetrates the side wall of the rack and is connected to the punching needle roller, the end of the punching needle roller is rotationally connected to the rack, the driving motor is arranged on the rack, the output end of the driving motor penetrates the side wall of the rack and is connected to the felt roller, the end of the felt roller is rotationally connected to the rack, the punching needle roller and the felt roller move towards each other, so that the paper passes between the punching needle roller and the felt roller; the application has the effect of reducing the pollution to the environment.

Description

Technical Field

[0001] This application relates to the field of paper processing technology, and in particular to a paper punching device. Background Technology

[0002] As people's living standards improve, paper punching is increasingly used in various types of packaging, both for breathability and environmental protection; and a paper punching device is a device specifically used to punch holes in paper.

[0003] Special types of paper, such as cigarette paper, tipping paper, and forming paper, require a certain degree of air permeability. To improve this permeability, laser and electrostatic methods are generally used to perforate the paper. Both laser and electrostatic perforation methods involve high-temperature combustion to create holes, which can easily generate harmful gases and pollute the environment. Summary of the Invention

[0004] In order to reduce environmental pollution, this application provides a paper punching device.

[0005] This application provides a paper punching device, which adopts the following technical solution:

[0006] A paper punching device includes a paper feeding component, a punching component, and a winding component arranged sequentially in a horizontal direction. The paper feeding component is used to release paper, and the winding component is used to wind up the punched paper. The punching component includes a frame, a punching motor, a punching needle roller, a drive motor, and a felt roller. The punching motor is mounted on the frame, and its output end passes through the side wall of the frame and is connected to the punching needle roller. The end of the punching needle roller is rotatably connected to the frame. The drive motor is mounted on the frame, and its output end passes through the side wall of the frame and is connected to the felt roller. The end of the felt roller is rotatably connected to the frame. The punching needle roller and the felt roller move towards each other so that the paper passes between the punching needle roller and the felt roller.

[0007] By adopting the above technical solution, the paper feeder releases the unperforated paper, allowing the paper to pass between the perforating needle roller and the felt roller. The perforating motor then drives the perforating needle roller to rotate, which in turn drives the felt roller to rotate, causing the perforating needle roller and the felt roller to rotate in opposite directions. This allows the perforating needle roller to perforate the paper. After perforation, the paper is wound up by the winding unit, thus completing the paper perforation operation. The above paper perforation process reduces the generation of harmful gases, thereby reducing the possibility of environmental pollution.

[0008] Preferably, the punching needle roller includes a rotating rod and a needle rod disposed on the rotating rod. The end of the rotating rod is rotatably connected to the frame and connected to the output end of the punching motor. The end of the needle rod away from the rotating rod is set as a plane, and the end of the needle rod away from the rotating rod has a connecting hole along its length for storing paper scraps after punching.

[0009] By adopting the above technical solution, the punching motor drives the rotating rod to rotate, so that the needle bar punches holes in the paper. The debris generated after punching the paper enters the inner wall of the connecting hole, thereby collecting the debris and reducing the possibility of debris flying everywhere.

[0010] Preferably, the rotating rod includes a fixed rod and a rotating tube. The fixed rod is mounted on the frame, and the rotating tube is rotatably connected to the fixed rod. The needle rod is located on the side of the rotating tube away from the fixed rod. The output end of the punching motor is connected to the rotating tube. A connecting hole is provided through the side wall of the rotating tube, and the connecting hole communicates with the connecting hole. An abutment hole is provided on the side wall of the fixed rod. An abutment rod is slidably connected to the inner wall of the abutment hole along its length. A first elastic element is provided at the end of the abutment rod away from the rotating tube. The end of the first elastic element away from the abutment rod is located on the inner wall of the abutment hole. A guide surface is provided at the end of the abutment rod away from the first elastic element to facilitate insertion and disengagement from the inner wall of the connecting hole.

[0011] By adopting the above technical solution, when the connecting hole on the rotating tube rotates to the point where the abutting hole is connected, the elastic force of the first elastic element drives the abutting rod to move along the length direction of the inner wall of the abutting hole, so that the end of the abutting rod with the guide surface is inserted into the inner wall of the connecting hole, so that the debris accumulated on the inner wall of the connecting hole and the connecting hole is discharged from the end of the connecting hole, thereby reducing the possibility of blockage on the inner wall of the connecting hole; when the rotating tube continues to rotate, the abutting rod is completely embedded in the inner wall of the abutting hole, at which time the first elastic element is in a compressed state, so that when the needle bar punches the cardboard, the debris can be stored in the connecting hole.

[0012] Preferably, a push rod is slidably connected to the inner wall of the connecting hole along the length direction, a limit block is provided on the side wall of the push rod, a limit groove is provided on the inner wall of the connecting hole along the length direction for the limit block to slide, a second elastic element is provided at the end of the limit block near the abutting rod, and the end of the second elastic element away from the limit block is provided on the inner wall of the limit groove.

[0013] By adopting the above technical solution, when the connecting hole on the rotating tube rotates to the point where it connects with the abutment hole, so that the end of the abutment rod with the guide surface is inserted into the inner wall of the connecting hole, the abutment rod pushes the push rod to move along the length direction of the inner wall of the connecting hole. At this time, the limiting block moves synchronously along the length direction of the inner wall of the limiting groove, so that the second elastic element is in a stretched state, and the push rod moves along the length direction of the inner wall of the connecting hole, effectively reducing the possibility of blockage inside the connecting hole.

[0014] Preferably, the push rod has an extension hole along its length at the end away from the fixed rod, and an extension rod is slidably connected to the inner wall of the extension hole along its length. A third elastic element is provided at the end of the extension rod near the fixed rod, and the end of the third elastic element away from the extension rod is located on the inner wall of the extension hole. An installation rod is rotatably connected to the end of the push rod away from the fixed rod. An assist rod is provided on the installation rod, and a torsion spring is sleeved on the installation rod. One end of the torsion spring is located on the side wall of the installation rod, and the other end of the torsion spring is located on the push rod. An assist groove is provided along its length on the inner wall of the connecting hole for the end of the assist rod to slide.

[0015] By adopting the above technical solution, when the abutment rod pushes the push rod to move along the length direction of the inner wall of the connecting hole, the assist rod moves synchronously along the length direction of the inner wall of the assist groove. When the assist rod abuts against the end wall of the assist groove, and as the push rod continues to move, the assist rod rotates. At this time, the torsion spring undergoes elastic deformation, so as to push the extension rod to move along the length direction of the inner wall of the extension hole through the assist rod until the end of the extension rod passes through the inner wall of the connecting hole, thereby further reducing the possibility of debris remaining on the inner wall of the connecting hole.

[0016] Preferably, the system also includes a collection assembly comprising a collection box, a fan, a suction pipe, a baffle plate, a replacement drawer, and a locking component. The fan is mounted on the collection box, and its air inlet is connected to the interior of the collection box. The suction pipe is mounted on the collection box to collect debris discharged from the inner wall of the connecting hole into the collection box. The baffle plate is mounted inside the collection box to prevent debris from entering the fan. The side wall of the collection box has a mounting hole, and the replacement drawer is slidably connected to the interior of the mounting hole. The locking component is used to fix the replacement drawer to the collection box.

[0017] By adopting the above technical solution, when the push rod discharges the debris located on the inner wall of the connecting hole, the fan uses the suction pipe to draw the debris discharged from the connecting hole into the collection box. Then, the baffle plate prevents the debris from entering the fan, reducing the possibility of fan damage. When the fan stops starting, the debris located inside the collection box is collected into the replacement drawer. Then, the replacement drawer is replaced by the locking device, thereby reducing the number of times the staff cleans the debris and effectively improving the staff's work efficiency.

[0018] Preferably, the locking component includes a locking rod, a positioning rod, and a magnetic component. The locking rod is rotatably connected to the replacement drawer, the positioning rod is disposed on the collection box, and the positioning rod has a positioning groove for the end of the locking rod to be inserted. The magnetic component is disposed on the inner wall of the positioning groove, and the positioning rod and the magnetic component are magnetically attracted to each other on their adjacent sides.

[0019] By adopting the above technical solution, the locking rod is rotated so that the end of the locking rod is inserted into the inner wall of the positioning groove until the end of the locking rod and the magnetic component are attracted magnetically, thereby improving the stability of the replacement drawer located inside the collection box.

[0020] Preferably, the frame has a dovetail groove along its length, and a dovetail block is slidably connected to the inner wall of the dovetail groove along its length. The end of the felt roller is rotatably connected to the dovetail block. The drive motor is located at the end of the dovetail block away from the felt roller. The output end of the drive motor passes through the dovetail block and is connected to the end of the felt roller. A sliding block is rotatably connected to the end of the felt roller away from the dovetail block. The frame has a sliding groove along its length for the sliding block to slide. An adjusting component is provided on the frame to drive the dovetail block to move along the length of the inner wall of the dovetail groove.

[0021] By adopting the above technical solution, the adjusting component drives the dovetail block to move along the length direction of the inner wall of the dovetail groove, thereby driving the felt roller to move synchronously through the movement of the dovetail block. At this time, the sliding block moves synchronously along the length direction of the inner wall of the sliding groove, thereby adjusting the distance between the felt roller and the punching needle roller, thus adapting to paper of different thicknesses and effectively expanding the range of paper thickness adaptability of the punching device.

[0022] Preferably, the adjusting component includes an adjusting motor, an adjusting gear, and an adjusting rack. The adjusting motor is mounted on the frame, the adjusting gear is located at the output end of the adjusting motor, and the adjusting rack is located at the end of the dovetail block away from the felt roller. The adjusting gear and the adjusting rack mesh with each other.

[0023] By adopting the above technical solution, the adjusting motor is started, which drives the adjusting gear to rotate, so that the adjusting rack moves along the length of the frame. This allows the dovetail block to move along the length of the inner wall of the dovetail groove, thereby adjusting the position of the dovetail block on the inner wall of the dovetail groove, and thus adjusting the distance between the felt roller and the punching needle roller.

[0024] Preferably, the outer wall of the felt roller is provided with a movable arc groove for the needle rod to move.

[0025] By adopting the above technical solution, the opening of the movable arc groove reduces the frictional resistance of the punching needle rod when it punches the paper and inserts it into the felt roller, thus extending the service life of the punching needle roller.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The paper feeder releases the un-perforated paper, allowing it to pass between the perforating needle roller and the felt roller. The perforating motor then drives the perforating needle roller to rotate, which in turn drives the felt roller to rotate, causing the perforating needle roller and the felt roller to rotate in opposite directions. This allows the perforating needle roller to perforate the paper. After perforation, the paper is wound up by the winding unit, thus completing the paper perforation process. The above paper perforation process reduces the generation of harmful gases, thereby reducing the possibility of environmental pollution.

[0028] 2. When the connecting hole on the rotating tube rotates to the point where the abutment hole is connected, the elastic force of the first elastic element drives the abutment rod to move along the length of the inner wall of the abutment hole, so that the end of the abutment rod with the guide surface is inserted into the inner wall of the connecting hole, so that the debris accumulated on the inner wall of the connecting hole and the connecting hole is discharged from the end of the connecting hole, thereby reducing the possibility of blockage on the inner wall of the connecting hole; when the rotating tube continues to rotate, the abutment rod is fully embedded in the inner wall of the abutment hole, at which time the first elastic element is in a compressed state, so that when the needle bar punches the cardboard, the debris can be stored in the connecting hole. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a paper punching device according to an embodiment of this application.

[0030] Figure 2 This is a cross-sectional view used to illustrate the structure of the punched component in the embodiments of this application.

[0031] Figure 3 This is a schematic diagram illustrating the structure of the adjusting component in the embodiments of this application.

[0032] Figure 4 This is a cross-sectional view used to illustrate the structure of the punch needle in the embodiments of this application.

[0033] Figure 5 yes Figure 4 Enlarged view of structure A in the middle.

[0034] Figure 6 This is a cross-sectional view used in the embodiments of this application to illustrate the internal structure of the collection box.

[0035] Figure 7 This is a partial enlarged view of the locking component structure used in the embodiments of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Paper feeding component; 11. Paper feeding rack; 12. Release roller; 2. Perforating component; 21. Frame; 211. Dovetail groove; 212. Sliding groove; 22. Perforating motor; 23. Perforating needle roller; 231. Rotating rod; 2311. Fixed rod; 23111. Abutment hole; 2312. Rotating tube; 23121. Connecting hole; 232. Needle rod; 2321. Connecting hole; 2322. Limiting groove; 2323. Assisting groove; 24. Drive motor; 25. Felt roller; 251. Sliding block; 252. Moving arc groove; 3. Rewinding component; 31. Rewinding frame; 32. Rewinding motor; 33. Rewinding roller; 4. Abutment rod; 41. First elastic element; 42. Guide surface; 5. Push rod; 51. Limiting block; 511. Second elastic element; 52. Extension hole; 521. Extension rod; 522. Third elastic element; 53. Mounting rod; 531. Assist rod; 532. Torsion spring; 6. Collection assembly; 61. Collection box; 611. Mounting hole; 62. Fan; 63. Suction pipe; 64. Baffle plate; 65. Replacement drawer; 66. Locking element; 661. Locking rod; 662. Positioning rod; 6621. Positioning groove; 663. Magnetic element; 7. Dovetail block; 8. Adjusting element; 81. Adjusting motor; 82. Adjusting gear; 83. Adjusting rack. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0039] This application discloses a paper punching device. (Refer to...) Figure 1 The paper punching device includes a paper feeding component 1, a punching component 2, and a winding component 3 arranged sequentially in a horizontal direction. The paper feeding component 1 is used to release the paper; the punching component 2 is used to punch holes in the paper; and the winding component 3 is used to wind up the punched paper.

[0040] Reference Figure 1 The paper feeding component 1 includes a paper feeding frame 11 and a release roller 12. The release roller 12 is rotatably connected to the paper feeding frame 11 via bearings. Paper to be punched is wound on the release roller 12 so that the paper to be punched can be released by the rotation of the release roller 12. The winding component 3 includes a winding frame 31, a winding motor 32, and a winding roller 33. The winding motor 32 is bolted to the winding frame 31. The output end of the winding motor 32 passes through the side wall of the winding frame 31 and is connected to the end of the winding roller 33. Both ends of the winding roller 33 are rotatably connected to the winding component 3 via bearings so that the winding motor 32 drives the winding roller 33 to rotate, thereby winding up the punched paper.

[0041] Reference Figure 2The punching component 2 includes a frame 21, a punching motor 22, a punching needle roller 23, a drive motor 24, and a felt roller 25. The punching motor 22 and the drive motor 24 are both mounted on the frame 21. The punching motor 22 is located above the drive motor 24. The output end of the punching motor 22 is connected to the end of the punching needle roller 23, and the output end of the drive motor 24 is connected to the felt roller 25. Both ends of the punching needle roller 23 are rotatably connected to the frame 21 through bearing seats. One end of the felt roller 25 is rotatably connected to a dovetail block 7 through a bearing. A dovetail groove 211 for sliding the dovetail block 7 is provided on the frame 21 along the height direction. The end of the felt roller 25 away from the dovetail block 7 is rotatably connected to a sliding block 251 through a bearing seat. A sliding groove 212 for sliding the sliding block 251 is provided on the frame 21 along the height direction.

[0042] Reference Figure 3 An adjusting component 8 is provided on the frame 21. The adjusting component 8 is used to drive the dovetail block 7 to move along the length direction of the inner wall of the dovetail groove 211. The adjusting component 8 includes an adjusting motor 81, an adjusting gear 82 and an adjusting rack 83. The adjusting motor 81 is bolted to the frame 21. The output end of the adjusting motor 81 is connected to the adjusting gear 82. The adjusting rack 83 is welded to the end of the dovetail block 7 away from the felt roller 25. The adjusting gear 82 and the adjusting rack 83 mesh with each other.

[0043] Reference Figure 2 and Figure 3 When the gap between the perforating needle rollers 23 and the felt rollers 25 is too small for paper to pass through, the adjusting motor 81 is activated. The adjusting motor 81 drives the adjusting gear 82 to rotate, so that the dovetail block 7 moves along the length of the inner wall of the dovetail groove 211 through the interaction of the adjusting gear 82 and the adjusting rack 83. This adjusts the position of the dovetail block 7 on the inner wall of the dovetail groove 211, so that the gap between the perforating needle rollers 23 and the felt rollers 25 can be made large enough for paper to pass through. Then, the perforating motor 22 drives the perforating needle rollers 23 to rotate, and the driving motor 24 drives the felt rollers 25 to rotate, so that the perforating needle rollers 23 and the felt rollers 25 rotate in opposite directions. This allows the perforating needle rollers 23 to punch holes in the paper. After punching, the paper passes through the winding member 3 and then into the winding groove, thus completing the paper punching operation. The above paper punching process reduces the generation of harmful gases and effectively reduces the possibility of environmental pollution.

[0044] Reference Figure 4 and Figure 5The perforating needle roller 23 includes a rotating rod 231 and needle bars 232 integrally formed on the rotating rod 231. Several needle bars 232 are provided and are evenly installed on the rotating rod 231. The rotating rod 231 is rotatably connected to the frame 21 through a bearing seat. The end of the rotating rod 231 is connected to the output end of the perforating motor 22. The end of each needle bar 232 away from the rotating rod 231 is flat. The end of each needle bar 232 away from the rotating rod 231 is provided with a connecting hole 2321 along the length direction. The outer wall of the felt roller 25 is provided with a movable arc groove 252 for each needle bar 232 to be inserted into, so that the debris generated after the needle bar 232 perforates the paper enters the inner wall of the connecting hole 2321, thereby collecting the debris.

[0045] Refer to 2 and Figure 5 The rotating rod 231 includes a fixed rod 2311 and a rotating tube 2312. The rotating tube 2312 is sleeved on the fixed rod 2311. Each needle rod 232 is integrally formed on the side of the rotating tube 2312 away from the fixed rod 2311. The two ends of the rotating tube 2312 are rotatably connected to the frame 21 through bearing seats. The output end of the punching motor 22 is connected to the end of the rotating tube 2312. The end of the fixed rod 2311 is welded to the frame 21.

[0046] Reference Figure 3 and Figure 5 The rotating tube 2312 has several connecting holes 23121 through its sidewall. The connecting holes 23121 and the connecting holes 2321 are arranged one-to-one. Each connecting hole 23121 communicates with the corresponding connecting hole 2321. The sidewall of the fixing rod 2311 has several abutting holes 23111 along its length. The abutting holes 23111 and the several connecting holes 23121 located in the same length direction correspond one-to-one on the same cross section of the fixing rod 2311. The bottom wall of each abutting hole 23111 is welded with a first elastic element 41. In this embodiment, the first elastic element 41 is a spring. An abutting rod 4 is welded to the side of the first elastic element 41 away from the inner wall of the abutting hole 23111. The end of the abutting rod 4 away from the first elastic element 41 is provided with a guide surface 42 for easy insertion and disengagement from the inner wall of the connecting hole 23121. The device also includes a collecting component 6 for collecting debris that has disengaged from the inner wall of the connecting hole 2321.

[0047] Reference Figure 5Each connecting hole 2321 has a push rod 5 slidably connected to its inner wall along the length direction, and the end of each push rod 5 is located on the inner wall of the corresponding connecting hole 23121. A limit block 51 is welded to the side wall of the push rod 5. A limit groove 2322 for the limit block 51 to slide is opened along the length direction on the inner wall of the connecting hole 2321. A second elastic element 511 is welded to the end of the limit block 51 near the fixed rod 2311. The end of the second elastic element 511 away from the limit block 51 is disposed on the inner wall of the limit groove 2322. In this embodiment, the second elastic element 511 is a spring.

[0048] Reference Figure 5 The push rod 5 has an extension hole 52 at the end away from the fixed rod 2311 along its length. An extension rod 521 is slidably connected to the inner wall of the extension hole 52 along its length. In this embodiment, the extension rod 521 has a T-shaped cross section. A third elastic element 522 is welded to the end of the extension rod 521 near the fixed rod 2311. The end of the third elastic element 522 away from the extension rod 521 is welded to the inner wall of the extension hole 52. In this embodiment, the third elastic element 522 is a spring.

[0049] Reference Figure 5 The end of the push rod 5 away from the fixed rod 2311 is rotatably connected to the rotating rod 231 via a bearing. An assist rod 531 is welded onto the rotating rod 231. In this embodiment, the assist rod 531 is an L-shaped rod. A torsion spring 532 is sleeved on the rotating rod 231. One end of the torsion spring 532 is welded to the side wall of the rotating rod 231, and the other end of the torsion spring 532 is welded to the push rod 5. An assist groove 2323 is provided on the inner wall of the connecting hole 2321 to allow the end of the assist rod 531 away from the extension rod 521 to slide.

[0050] Reference Figure 2 , Figure 3 and Figure 5When the rotating tube 2312 rotates, causing a number of abutment holes 23111 to correspond one-to-one with the connecting holes 23121 located in the same length direction, the first elastic element 41 rebounds, and the elastic force of the first elastic element 41 drives the abutment rod 4 to move along the length direction of the inner wall of the abutment hole 23111, so that the end of the abutment rod 4 moves along the inner wall of the connecting hole 23121 that is close to it; at this time, the abutment rod 4 pushes the push rod 5 to move along the length direction of the inner wall of the connecting hole 2321, and the limiting block 51 moves synchronously along the length direction of the inner wall of the limiting groove 2322. The push rod 5 moves to the side so that the second elastic element 511 is in a stretched state; and the assist rod 531 moves synchronously along the length direction of the inner wall of the assist groove 2323. When the assist rod 531 abuts against the end wall of the assist groove 2323, and as the push rod 5 continues to move, the assist rod 531 rotates so that the torsion spring 532 undergoes elastic deformation, so that the assist rod 531 pushes the extension rod 521 to move along the length direction of the inner wall of the extension hole 52 until the end of the extension rod 521 passes through the connecting hole 2321, thereby completely discharging the debris from the inner wall of the connecting hole 2321.

[0051] Reference Figure 2 , Figure 3 and Figure 5 Then, the debris is collected by the collection component 6, which effectively reduces the number of cleaning times for the staff and improves the work efficiency of the staff. When the rotating tube 2312 continues to rotate, the abutment rod 4 disengages from the inner wall of the connecting hole 23121, and the second elastic element 511, the third elastic element 522, and the torsion spring 532 all rebound. When the abutment rod 4 is fully embedded in the inner wall of the abutment groove, the push rod 5, the abutment rod 4, and the assist rod 531 are all reset, so that the needle rod 232 continues to punch holes in the paper.

[0052] Reference Figure 3 and Figure 6 The collection assembly 6 includes a collection box 61, a fan 62, a suction pipe 63, a baffle plate 64, a replacement drawer 65, and a locking component 66. The fan 62 is bolted to the collection box 61, and the air inlet of the fan 62 is connected to the inside of the collection box 61. The suction pipe 63 is welded to the collection box 61 to collect the debris discharged from the inner wall of the connecting hole 2321 into the inside of the collection box 61. The baffle plate is welded to the inside of the collection box 61 to prevent debris from entering the inside of the fan 62. The side wall of the collection box 61 has a mounting hole 611, and the replacement drawer 65 is slidably connected to the inside of the mounting hole 611. The locking component 66 is used to fix the replacement drawer 65 to the collection box 61.

[0053] Reference Figure 7The locking component 66 includes a locking rod 661, a positioning rod 662, and a magnetic component 663. The locking rod 661 is rotatably connected to the replacement drawer 65 via a pin, and the positioning rod 662 is welded to the collection box 61. The positioning rod 662 has a positioning groove 6621 for the end of the locking rod 661 to be inserted into. The magnetic component 663 is glued to the inner wall of the positioning groove 6621. The magnetic component 663 is a magnet, and the positioning rod 662 can be made of iron. The positioning rod 662 and the magnetic component 663 are magnetically attracted to each other on the side that are close to each other.

[0054] Reference Figure 3 , Figure 6 and Figure 7 When push rod 5 discharges debris from the inner wall of connecting hole 2321, fan 62 uses suction pipe 63 to draw the debris discharged from connecting hole 2321 into collection box 61; when fan 62 stops, debris inside collection box 61 is collected into replacement drawer 65; when replacement drawer 65 is full of debris, positioning rod 662 is rotated, causing the end of positioning rod 662 to disengage from inner wall of positioning groove 6621, thereby removing replacement drawer 65 from collection box 61 to clean debris from replacement drawer 65.

[0055] The implementation principle of the paper punching device in this application embodiment is as follows: the paper feeding component 1 releases the unpunched paper, so that the paper passes between the punching needle roller 23 and the felt roller 25. Then, the punching motor 22 drives the punching needle roller 23 to rotate, and the drive motor 24 drives the felt roller 25 to rotate, so that the punching needle roller 23 and the felt roller 25 rotate towards each other, thereby punching holes in the paper through the punching needle roller 23. After punching, the paper is wound up by the winding component 3. The above-mentioned paper punching process reduces the generation of harmful gases, thereby reducing the possibility of environmental pollution.

[0056] The paper scraps generated after punching are sucked into the collection box 61 through the suction pipe 63. When the fan 62 stops, the scraps inside the collection box 61 fall into the replacement drawer 65, thus achieving the collection of scraps.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paper punching device, characterized in that: The assembly includes a paper feeding unit (1), a punching unit (2), and a winding unit (3) arranged sequentially along a horizontal direction. The paper feeding unit (1) is used to release the paper, and the winding unit (3) is used to wind up the punched paper. The punching unit (2) includes a frame (21), a punching motor (22), a punching needle roller (23), a drive motor (24), and a felt roller (25). The punching motor (22) is mounted on the frame (21), and the output end of the punching motor (22) passes through the side of the frame (21). The paper passes through the side wall of the frame (21) and is connected to the perforating needle roller (23). The end of the perforating needle roller (23) is rotatably connected to the frame (21). The drive motor (24) is mounted on the frame (21). The output end of the drive motor (24) passes through the side wall of the frame (21) and is connected to the felt roller (25). The end of the felt roller (25) is rotatably connected to the frame (21). The perforating needle roller (23) and the felt roller (25) move towards each other so that the paper passes between the perforating needle roller (23) and the felt roller (25). The punching needle roller (23) includes a rotating rod (231) and a needle rod (232) disposed on the rotating rod (231). The end of the rotating rod (231) is rotatably connected to the frame (21). The end of the rotating rod (231) is connected to the output end of the punching motor (22). The end of the needle rod (232) away from the rotating rod (231) is set as a plane. The end of the needle rod (232) away from the rotating rod (231) is provided with a connecting hole (2321) along the length direction for storing paper scraps after punching. The rotating rod (231) includes a fixed rod (2311) and a rotating tube (2312). The fixed rod (2311) is mounted on the frame (21), and the rotating tube (2312) is rotatably connected to the fixed rod (2311). The needle bar (232) is located on the side of the rotating tube (2312) away from the fixed rod (2311). The output end of the punching motor (22) is connected to the rotating tube (2312). A connecting hole (23121) is provided through the side wall of the rotating tube (2312). The connecting hole (23121) and the connecting hole (23122) are connected. 21) The side wall of the fixed rod (2311) is provided with an abutment hole (23111), and the inner wall of the abutment hole (23111) is slidably connected with an abutment rod (4) along the length direction. The end of the abutment rod (4) away from the rotating tube (2312) is provided with a first elastic element (41). The end of the first elastic element (41) away from the abutment rod (4) is provided on the inner wall of the abutment hole (23111). The end of the abutment rod (4) away from the first elastic element (41) is provided with a guide surface (42) for easy insertion and disengagement from the inner wall of the connecting hole (23121). A push rod (5) is slidably connected to the inner wall of the connecting hole (2321) along the length direction. A limit block (51) is provided on the side wall of the push rod (5). A limit groove (2322) for the limit block (51) to slide is opened on the inner wall of the connecting hole (2321) along the length direction. A second elastic element (511) is provided at the end of the limit block (51) near the abutting rod (4). The end of the second elastic element (511) away from the limit block (51) is provided on the inner wall of the limit groove (2322). The push rod (5) has an extension hole (52) along its length at one end away from the fixed rod (2311). An extension rod (521) is slidably connected to the inner wall of the extension hole (52) along its length. A third elastic element (522) is provided at one end of the extension rod (521) near the fixed rod (2311). The end of the third elastic element (522) away from the extension rod (521) is located on the inner wall of the extension hole (52). The push rod (5) is further extended away from the fixed rod (2311). 11) One end is rotatably connected to an installation rod (53), the installation rod (53) is provided with an assist rod (531), the installation rod (53) is sleeved with a torsion spring (532), one end of the torsion spring (532) is provided on the side wall of the installation rod (53), the other end of the torsion spring (532) is provided on the push rod (5), and the inner wall of the connecting hole (2321) is provided with an assist groove (2323) along the length direction for the end of the assist rod (531) to slide.

2. The paper punching device according to claim 1, characterized in that: It also includes a collection component (6), which includes a collection box (61), a fan (62), a suction pipe (63), a baffle plate (64), a replacement drawer (65), and a locking component (66). The fan (62) is mounted on the collection box (61), and the air inlet of the fan (62) is connected to the inside of the collection box (61). The suction pipe (63) is mounted on the collection box (61) to collect debris discharged from the inner wall of the connecting hole (2321) into the inside of the collection box (61). The baffle plate (64) is mounted inside the collection box (61) to prevent debris from entering the inside of the fan (62). The side wall of the collection box (61) is provided with a mounting hole (611). The replacement drawer (65) is slidably connected to the inside of the mounting hole (611). The locking component (66) is used to fix the replacement drawer (65) to the collection box (61).

3. The paper punching device according to claim 2, characterized in that: The locking component (66) includes a locking rod (661), a positioning rod (662), and a magnetic component (663). The locking rod (661) is rotatably connected to the replacement drawer (65). The positioning rod (662) is disposed on the collection box (61). The positioning rod (662) has a positioning groove (6621) for the end of the locking rod (661) to be inserted. The magnetic component (663) is disposed on the inner wall of the positioning groove (6621). The positioning rod (662) and the magnetic component (663) are magnetically attracted to each other on the side that are close to each other.

4. The paper punching device according to claim 1, characterized in that: The frame (21) has a dovetail groove (211) along its length. A dovetail block (7) is slidably connected to the inner wall of the dovetail groove (211) along its length. The end of the felt roller (25) is rotatably connected to the dovetail block (7). The drive motor (24) is located at the end of the dovetail block (7) away from the felt roller (25). The output end of the drive motor (24) passes through the dovetail block (7) and is connected to the end of the felt roller (25). A sliding block (251) is rotatably connected to the end of the felt roller (25) away from the dovetail block (7). A sliding groove (212) for sliding the sliding block (251) is provided on the frame (21) along its length. An adjusting member (8) is provided on the frame (21). The adjusting member (8) is used to drive the dovetail block (7) to move along the length of the inner wall of the dovetail groove (211).

5. A paper punching device according to claim 4, characterized in that: The adjusting component (8) includes an adjusting motor (81), an adjusting gear (82), and an adjusting rack (83). The adjusting motor (81) is mounted on the frame (21), the adjusting gear (82) is mounted at the output end of the adjusting motor (81), and the adjusting rack (83) is mounted at the end of the dovetail block (7) away from the felt roller (25). The adjusting gear (82) and the adjusting rack (83) mesh with each other.

6. The paper punching device according to claim 1, characterized in that: The outer wall of the felt roller (25) is provided with a movable arc groove (252) for the needle rod (232) to move.

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