High-efficiency low-loss paper edge tail cutting device
By introducing a cross-cutting blade and a slotted structure into the cardboard cutting device, the paper edges and cardboard joints are pre-cut, solving the problem of high cardboard loss rate, achieving low-loss and high-efficiency cutting, and improving material utilization and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU DAQUN MASCH TECH CO LTD
- Filing Date
- 2025-09-16
- Publication Date
- 2026-07-31
AI Technical Summary
In the paperboard production process, the fiber continuity of the paperboard results in a large paper edge width. When the paper edge is broken, the intact paperboard is also torn, resulting in a high loss rate, which is difficult to effectively reduce with existing technologies.
A cross-cutting blade is introduced into the cardboard cutting device. By pre-cutting the paper edge and the cardboard joint, the connection length is shortened and the tearing range is guided, reducing the length of intact cardboard that is torn. A groove is used to accommodate the cross-cutting blade to avoid damage to the cardboard surface.
It reduces cardboard wastage, improves material utilization and production cost-effectiveness, ensures cutting accuracy, and avoids damage to the cardboard surface.
Smart Images
Figure CN224575821U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of paperboard production, and in particular to a high-efficiency, low-loss paper edge trimming device. Background Technology
[0002] In the fields of packaging, printing and logistics, cardboard is widely used as a basic raw material. During its processing, it often needs to be trimmed by cutting to meet the dimensional accuracy requirements of subsequent forming, splicing and other processes.
[0003] In related technologies, there is a cardboard tail-cutting device, see [link to related technology]. Figure 1 and Figure 2 The device includes a frame 1 and a slide 2. The frame 1 has a material drop hole 11. The slide 2 slides laterally on the frame 1. The frame 1 has a drive component 3 for moving the slide 2. A longitudinal cutter 4 is rotatably connected to the slide 2. The slide 2 has a drive assembly 5 for rotating the longitudinal cutter 4. The slide 2 also has a horizontal pull cutter 6.
[0004] Using the aforementioned cardboard trimming device, during the cardboard production process, the cardboard is cut along the edges on a slitting machine. The slitting machine cuts off the rough edges on the sides of the cardboard. Then, the drive assembly drives the slitting blade to rotate and cut the cardboard, thereby cutting out the head of the part to be cut off from the rough edges. After the trimming is completed, the drive assembly drives the slide to move, and the slide drives the cross-cutting blade to move, thereby breaking the connection between the cut-off excess part (i.e., the paper edge) and the cardboard. Because the cardboard material has a certain degree of fiber continuity, the process of breaking the paper edge will also tear the intact cardboard part behind the paper edge. When the width of the paper edge is large, the torn part on the intact cardboard is long, resulting in a large cardboard loss rate, which needs to be improved. Summary of the Invention
[0005] In order to reduce the paperboard loss rate when the paper edge width is large, this application provides an efficient and low-loss paper edge trimming device.
[0006] This application provides a high-efficiency, low-loss paper edge trimming device, which adopts the following technical solution:
[0007] A high-efficiency, low-loss paper edge trimming device includes a frame two and a slide block two slidably connected to the frame two. The frame two has a material discharge hole two. The frame two is provided with a driving component two for driving the slide block two to move. A longitudinal cutter two is rotatably connected to the slide block two. The slide block two is provided with a driving assembly two for driving the longitudinal cutter two to rotate. The slide block two is also provided with a transverse cutter two. A transverse cutter is slidably connected to the frame two. The transverse cutter is located on the side of the longitudinal cutter two closer to the material discharge hole two, and the sliding direction of the transverse cutter is parallel to the sliding direction of the slide block two. The frame two is provided with a driving component three for driving the transverse cutter to move.
[0008] By adopting the above technical solution, after the slitting equipment finishes trimming the paper edge, before the second cross-cutting blade breaks the paper edge, the paper runs to the position directly opposite the cross-cutting blade at the connection between the paper edge and the cardboard. Then, the third control drive unit drives the cross-cutting blade to move closer to the paper edge in the second dropping hole, so that the cross-cutting blade pre-cuts a section of the connection between the paper edge and the cardboard, thereby shortening the connection length between the paper edge and the cardboard, effectively guiding the starting position and expansion direction of the tear, and limiting the tear range to a predetermined range. When the second cross-cutting blade breaks the paper edge in the subsequent process, the length of the intact cardboard part that is torn along with it is reduced. By introducing a pre-cutting process, the original extended tear loss caused by the wide paper edge is transformed into a controllable and minimal tear loss, reducing the cardboard loss rate and achieving improved material utilization and optimized production costs.
[0009] Optionally, the frame 2 is provided with a groove, and the cross-cutting blade is located in the groove.
[0010] By adopting the above technical solution, a groove is set to accommodate the cross-cutting blade, preventing the cross-cutting blade from lifting the cardboard and causing creases or wrinkles on the cardboard surface, which would affect the appearance quality of the cardboard.
[0011] Optionally, the upper end face of the cross-cutting blade is flush with the upper end face of the second frame.
[0012] By adopting the above technical solution, the situation where the paper edge end is stuck by the inner wall of the groove when entering the second feeding hole is reduced.
[0013] Optionally, the end face of the cross-cutting blade near the second discharge hole is flush with the inner wall of the second discharge hole.
[0014] By adopting the above technical solution, the situation where the paper edge end is stuck by the end of the cross-cutting knife when entering the second feeding hole is reduced.
[0015] Optionally, the frame two includes a main body and a slide rail disposed on the main body. The slide block two and the groove are both disposed on the main body. The cross-cutting blade includes a slider slidably connected to the slide rail and a blade body disposed on the slider. The blade body is located in the groove. The driving member three drives the slider to move.
[0016] By adopting the above technical solution, the slide rail ensures that the cross-cutting blade moves in an absolutely straight line, which can cleanly and neatly cut the paper edge and avoid problems such as trailing and burrs caused by frame shaking.
[0017] Optionally, the slider is sleeved on the outside of the slide rail.
[0018] By adopting the above technical solution, the load can be evenly distributed to the outer periphery of the slide rail, the anti-overturning moment capability is enhanced, the cutting position accuracy is effectively guaranteed, and the paperboard loss caused by slippage deviation is reduced.
[0019] In summary, this application includes at least one of the following beneficial technical effects:
[0020] 1. By introducing a pre-cutting process, the stretch tearing loss caused by the wide paper edge is transformed into a controllable and minimal tearing loss, reducing the paperboard loss rate and achieving improved material utilization and optimized production costs.
[0021] 2. By setting a groove to accommodate the cross-cutting blade, the cross-cutting blade is prevented from lifting the cardboard, which would cause creases or wrinkles on the cardboard surface and affect the appearance quality of the cardboard;
[0022] 3. By setting the upper end face of the cross-cutting blade to be flush with the upper end face of the second frame, the situation where the paper edge end is stuck by the inner wall of the groove when entering the second feeding hole is reduced. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of a cardboard tail-cutting device in related technologies.
[0024] Figure 2 This is an overall schematic diagram of a cardboard tail-cutting device from another perspective in the related technology, mainly showing the structure of the drive component one.
[0025] Figure 3 This is a schematic diagram of an embodiment of this application.
[0026] Figure 4 This is an overall schematic diagram from another perspective of an embodiment of this application, mainly showing the structure of the second driving component.
[0027] Explanation of reference numerals in the attached drawings: 1. Frame 1; 11. Drop hole 1; 2. Slide 1; 3. Drive unit 1; 4. Longitudinal cutter 1; 41. Cutter holder 1; 42. Blade 1; 5. Drive assembly 1; 51. Gear; 52. Drive cylinder; 53. Spring; 54. Transmission chain; 6. Cross-cutting cutter 1; 7. Frame 2; 71. Main body; 711. Drop hole 2; 712. Slot; 72. Slide rail; 8. Slide 2; 9. Drive unit 2; 10. Longitudinal cutter 2; 101. Cutter holder 2; 102. Blade 2; 12. Drive assembly 2; 13. Cross-cutting cutter 2; 14. Cross-cutting cutter; 141. Slider; 142. Blade body; 15. Drive unit 3. Detailed Implementation
[0028] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0029] A cardboard tail-cutting device, see Figure 1 and Figure 2 The device includes a frame 1 and a slide 2. The frame 1 has a material drop hole 11. The slide 2 slides laterally on the frame 1. A drive component 3 is fixed on the frame 1. The piston rod of the drive component 3 is fixedly connected to the slide 2. The drive component 3 drives the slide 2 to move. In this embodiment, the drive component 3 is a cylinder.
[0030] See Figure 1 and Figure 2 A longitudinal cutting blade 4 is rotatably connected to a slide block 2. The longitudinal cutting blade 4 includes a blade holder 41 and a blade 42. The blade holder 41 is rotatably connected to the slide block 2, and the axis of rotation of the blade holder 41 is parallel to the sliding direction of the slide block 2. The blade 42 is fixed to one end of the blade holder 41. A drive assembly 5 is provided on the slide block 2. The drive assembly 5 includes a gear 51, a drive cylinder 52, a spring 53, and a transmission chain 54. The gear 51 is coaxially fixed to the blade holder 41, and the transmission chain 54 is sleeved on the gear. The outer side of 51 meshes with gear 51. The drive cylinder 52 and spring 53 are both located below gear 51 and fixed on the frame 1. The piston rod of drive cylinder 52 and spring 53 are respectively fixedly connected to the opposite ends of transmission chain 54. Spring 53 pulls transmission chain 54. The piston rod of drive cylinder 52 moves closer to or away from gear 51, thereby pulling transmission chain 54 to move. Transmission chain 54 drives gear 51 and tool holder 41 to rotate through meshing with gear 51.
[0031] See Figure 1 and Figure 2 A horizontal pull cutter 6 is also fixed on the slide block 2. The horizontal pull cutter 6 is located on the side of the blade 42 away from the cutter holder 41.
[0032] This application discloses a high-efficiency, low-loss paper edge trimming device. See also... Figure 3 and Figure 4 The high-efficiency, low-loss paper edge trimming device includes a frame 7 and a slide 8. The frame 7 includes a main body 71 and a slide rail 72. The main body 71 has a material drop hole 711. The slide 8 is located above the main body 71 and is laterally slidably connected to the main body 71. The main body 71 is provided with a driving component 9. The piston rod of the driving component 9 is fixedly connected to the slide 8. The driving component 9 drives the slide 8 to move. In this embodiment, the driving component 9 is a cylinder.
[0033] See Figures 1-4 A longitudinal cutting blade 10 is rotatably connected to a slide block 2 8. The longitudinal cutting blade 10 includes a blade holder 2 101 and a blade 2 102. The blade holder 2 101 is rotatably connected to the slide block 2 8, and the rotation axis of the blade holder 2 101 is parallel to the sliding direction of the slide block 2 8. The blade 2 102 is fixed to one end of the blade holder 2 101. A drive assembly 2 12 is provided on the slide block 2 8. The structure of the drive assembly 2 12 is the same as that of the drive assembly 1 5. The drive assembly 2 12 drives the blade holder 2 101 to rotate. A transverse pull blade 2 13 is also fixed on the slide block 2 8. The transverse pull blade 2 13 is located on the side of the blade 2 102 away from the blade holder 2 101.
[0034] See Figure 3 and Figure 4 The slide rail 72 is located on the side of the second blade 102 away from the second blade holder 101 and is fixed to the outside of the main body 71. The upper end face of the main body 71 is provided with a groove 712. The groove 712 is located on the side of the second blade holder 101 near the second material discharge hole 711 and on the side of the second blade 102 away from the second blade holder 101. The groove 712 and the second material discharge hole 711 are connected. A cross-cutting blade 14 is slidably connected to the main body 71. The cross-cutting blade 14 includes a slider 141 and a blade body 142. The slider 141 is sleeved on the outside of the slide rail 72 and slidably connected to the slide rail 72. The sliding direction of the slider 141 is parallel to the sliding direction of the second slide holder 8. A driving component 3 15 is fixed on the main body 71. The driving component 3 15 is located below the slider 141. The piston rod of the driving component 3 15 is fixedly connected to the slider 141. The driving component 3 15 drives the slider 141 to move. In this embodiment, the driving component 3 15 is a cylinder.
[0035] See Figure 3 and Figure 4 The blade body 142 is located above the slider 141 and is fixedly connected to the slider 141. The blade body 142 is located in the groove 712, and the upper end face of the blade body 142 is flush with the upper end face of the main body 71. The end face of the blade body 142 near the second discharge hole 711 is flush with the inner wall of the second discharge hole 711.
[0036] The implementation principle of the high-efficiency, low-loss paper edge trimming device in this application is as follows:
[0037] After the slitting equipment finishes trimming the paper edge, before the second slitting knife 13 cuts the paper edge, the paper runs to the position directly opposite the knife body 142 at the connection between the paper edge and the cardboard. Then, the control drive component 15 drives the slider 141 to move closer to the paper edge in the second discharge hole 711, so that the knife body 142 pre-cuts a section of the connection between the paper edge and the cardboard, thereby shortening the connection length between the paper edge and the cardboard, effectively guiding the starting position and expansion direction of the tear, and limiting the tear range to a predetermined range. When the second slitting knife 13 cuts the paper edge in the subsequent process, the length of the intact cardboard part that is torn along with it is reduced. By introducing a pre-cutting process, the original extended tear loss caused by the wide paper edge is transformed into a controllable and minimal tear loss, reducing the cardboard loss rate and achieving improved material utilization and optimized production costs.
[0038] 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 high-efficiency, low-loss paper edge trimming device, comprising a frame two (7) and a slide two (8) slidably connected to the frame two (7), wherein the frame two (7) has a material discharge hole two (711), the frame two (7) is provided with a driving component two (9) for driving the slide two (8) to move, a longitudinal cutter two (10) is rotatably connected to the slide two (8), a driving assembly two (12) for driving the longitudinal cutter two (10) to rotate is provided on the slide two (8), and a transverse puller two (13) is also provided on the slide two (8), characterized in that: A cross-cutting blade (14) is slidably connected to the frame two (7). The cross-cutting blade (14) is located on the side of the longitudinal cutting blade two (10) near the material drop hole two (711), and the sliding direction of the cross-cutting blade (14) is parallel to the sliding direction of the slide block two (8). The frame two (7) is provided with a driving component three (15) for driving the cross-cutting blade (14) to move.
2. The high-efficiency, low-loss paper edge trimming device according to claim 1, characterized in that: The frame 2 (7) has a groove (712) and the cross-cutting blade (14) is located in the groove (712).
3. The high-efficiency, low-loss paper edge trimming device according to claim 2, characterized in that: The upper end face of the cross-cutting blade (14) is flush with the upper end face of the frame two (7).
4. The high-efficiency, low-loss paper edge trimming device according to claim 2, characterized in that: The end face of the cross-cutting blade (14) near the second discharge hole (711) is flush with the inner wall of the second discharge hole (711).
5. The high-efficiency, low-loss paper edge trimming device according to claim 2, characterized in that: The second frame (7) includes a main body (71) and a slide rail (72) on the main body (71). The second slide (8) and the groove (712) are both on the main body (71). The cross-cutting blade (14) includes a slider (141) slidably connected to the slide rail (72) and a blade (142) on the slider (141). The blade (142) is located in the groove (712). The third driving member (15) drives the slider (141) to move.
6. The high-efficiency, low-loss paper edge trimming device according to claim 5, characterized in that: The slider (141) is fitted onto the outside of the slide rail (72).