Conveying device of splitting machine

Abstract

The invention relates to the technical field of paper slitting equipment, in particular to a conveying device of a slitting machine, which comprises a conveying assembly for conveying slit paper, the conveying assembly comprises a rapid conveying belt, and the conveying assembly further comprises a speed reduction assembly for conveying the paper, the conveying assembly and the speed reduction assembly are arranged in the conveying direction of the high-speed conveying belt, the height of the end, close to the high-speed conveying belt, of the speed reduction assembly is smaller than that of the end, close to the speed reduction assembly, of the high-speed conveying belt, the speed reduction assembly comprises a low-speed conveying belt, and the conveying speed of the low-speed conveying belt is smaller than that of the high-speed conveying belt. According to the paper stacking device, the low-speed conveying belt which is low in height and low in speed is arranged behind the high-speed conveying belt to form the speed reduction assembly, and the ends of the adjacent paper are stacked through the natural fall formed by the height difference, so that the speed of the paper is effectively reduced before the paper enters the collection stage; and the paper conveying stability, the collection uniformity and the product yield are improved.

Description

Technical Field

[0001] This application relates to the field of paper slitting equipment, and more particularly to a conveying device for a slitting machine. Background Art

[0002] Paper slitting machines are specialized processing equipment widely used in industries such as papermaking, printing, packaging, and labeling. Their main function is to cut wide (usually roll-shaped) base paper substrates longitudinally at high speed and with precision according to preset width specifications or specific requirements, thereby producing single sheets of paper that meet the needs of downstream processes or final use.

[0003] In related technologies, slitting machines include a cutting device, a conveying device, and a collecting device. The cutting device cuts the paper, and the conveying device transports the paper to the collecting device, where the collecting device stacks and collects the cut paper. To accommodate the cutting speed and improve work efficiency, the conveying device operates at a relatively high speed. This causes the paper to collide with the structure of the collecting device due to inertia when it is conveyed to the collecting device, which can easily lead to paper misalignment, making it difficult to collect, and even damaging the paper heads, thus affecting the yield rate. Summary of the Invention

[0004] In order to improve the paper yield, this application provides a conveying device for a slitting machine.

[0005] The conveying device for a slitting machine provided in this application adopts the following technical solution: A conveying device for a slitting machine includes a conveying assembly for conveying slit paper. The conveying assembly includes a high-speed conveyor belt and a deceleration assembly for conveying the paper. The conveying assembly and the deceleration assembly are arranged along the conveying direction of the high-speed conveyor belt. The height of the end of the deceleration assembly near the high-speed conveyor belt is lower than the height of the end of the high-speed conveyor belt near the deceleration assembly. The deceleration assembly includes a slow-speed conveyor belt, and the conveying speed of the slow-speed conveyor belt is lower than the conveying speed of the high-speed conveyor belt.

[0006] By adopting the above technical solution, when paper is conveyed from the fast conveyor belt to the slow conveyor belt, the first end of the paper falls onto the slow conveyor belt first, followed by the last end. Because the height of the deceleration assembly near the end of the fast conveyor belt is lower than the height of the fast conveyor belt near the deceleration assembly, the last end of the paper that falls completely onto the slow conveyor belt is lower than the first end. When paper from the subsequent fast conveyor belt falls onto the slow conveyor belt, its first end lands on the last end of the preceding paper. This allows for partial stacking of adjacent papers even when there is a speed difference between the two conveyor belts, facilitating the transition of paper from the fast conveyor belt to the slow conveyor belt. When conveying paper, the beginning of the paper behind it should not be on the same plane as the end of the paper in front. This prevents damage to the ends of adjacent papers while slowing down the paper conveying process. By setting a slow-speed conveyor belt with a lower height and slower speed behind the fast conveyor belt to form a deceleration component, the natural drop formed by the height difference is used to stack the ends of adjacent papers. This effectively reduces the speed of the paper before it enters the collection stage, thereby significantly reducing problems such as collisions, misalignment, and head damage between the paper and the collection device caused by high-speed inertia. This improves the stability of paper conveying, the neatness of collection, and the yield rate of products, solving the core problems pointed out in the background technology.

[0007] Optionally, the deceleration assembly further includes an inclined transition plate located between the slow conveyor belt and the fast conveyor belt, with the end of the transition plate near the slow conveyor belt higher than the end of the transition plate near the fast conveyor belt.

[0008] By adopting the above technical solution, a transition plate with a specific inclination is added between the fast and slow conveyor belts. When the paper transitions from the fast conveyor belt to the slow conveyor belt, the ends are stacked on the transition plate. This allows the slow and fast conveyor belts to be positioned at the same height, preventing a significant drop in the conveying height of the paper's beginning end during the transition. This ensures the paper's beginning end can smoothly slide onto the slow conveyor belt, minimizing the risk of damage from collisions. The transition plate also supports the paper from the fast conveyor belt, facilitating a smooth entry into the slow conveyor belt and preventing jamming or jumping of the paper in the transition zone.

[0009] Optionally, it also includes a suction drive source and a suction duct located below the transition plate. The suction drive source is used to draw air from the suction duct. The transition plate has a suction hole that penetrates the vertical surface of the transition plate and is connected to the suction duct.

[0010] By adopting the above technical solution, a suction duct and a suction drive source are set below the transition plate, and suction holes are opened on the transition plate. When the suction drive source is working, a downward suction force is generated on the surface of the transition plate through the suction holes. This negative pressure suction force can "suck" the end of the paper transitioning to the slow conveyor belt onto the surface of the transition plate (because the conveying speed of the fast conveyor belt is relatively fast, it will not suck the beginning of the paper onto the surface of the plate), effectively suppressing the floating, suspending or jumping phenomenon of paper (especially thin paper) due to airflow or its own characteristics during the transition to the slow conveyor belt, ensuring that the paper in front is closely attached to the surface of the transition plate, and ensuring that the beginning of the paper behind can fall smoothly and controllably onto the end of the paper in front without colliding with the end of the paper in front, smoothly completing the stacking of the two papers, realizing the deceleration transition, and further improving the reliability and stability of the deceleration process.

[0011] Optionally, the transition plate has a through hole extending through the vertical surface of the transition plate, and an antistatic bar is provided below the transition plate to block the lower end of the through hole.

[0012] By adopting the above technical solution, when paper transitions from a fast conveyor belt to a slow conveyor belt, the paper will generate static electricity through friction with the transition plate, causing uneven operation, deviation, wrinkling, or even paper jams and machine shutdowns. By creating through holes in the transition plate and installing an anti-static bar below them to block the lower end of the through holes, the anti-static bar can remove static electricity between the paper and the transition plate, ensuring smooth paper transport.

[0013] Optionally, an upper conveyor belt located above the fast and slow conveyor belts is also included, wherein the conveying direction of the upper conveyor belt is the same as that of the slow conveyor belt, and the paper is used to be located between the upper conveyor belt and the slow conveyor belt.

[0014] By adopting the above technical solution, an upper conveyor belt with the same conveying direction is added above the slow and fast conveyor belts, allowing the paper to be clamped between the upper and lower conveyor belts. This double-sided clamping structure applies constraint forces from both the upper and lower sides to the paper during the paper conveying process, effectively limiting the paper's degree of freedom in the vertical direction, enhancing the stability of the conveying, preventing the paper from shifting, tilting, or arching due to its own characteristics, and ensuring that it enters the collection device neatly and straight.

[0015] Optionally, the upper conveyor belt is located above the fast conveyor belt and above the end of the slow conveyor belt near the fast conveyor belt.

[0016] By adopting the above technical solution, during the paper conveying process, since the paper on the fast conveyor belt is transported as a single sheet independently and at a relatively high speed, it is prone to floating or shifting. However, the paper in the latter part of the slow conveyor belt is stacked end to end and at a slower speed, so it is less likely to float or shift. Considering the above situation, in this application, the upper conveyor belt covers the top of the fast conveyor belt and the top of the starting end of the slow conveyor belt. This layout not only makes the paper conveying on the fast conveyor belt more stable, but also allows the upper conveyor belt to constrain and guide the paper from above as soon as it leaves the fast conveyor belt and enters the transition zone. This achieves continuity and seamless connection of conveying constraints from the high-speed section to the low-speed section, avoiding the problem of the paper head lifting, floating, or jamming due to the loss of upper constraints in the transition zone, and further smoothing the deceleration transition process.

[0017] Optionally, the deceleration assembly further includes a clamping structure, which includes a clamping wheel located above the slow conveyor belt. The clamping wheel is rotatable about a rotation axis extending along the width direction of the slow conveyor belt, and the clamping wheel is offset from the upper conveyor belt in the width direction of the slow conveyor belt.

[0018] By adopting the above technical solution, the upper conveyor belt and the slow conveyor belt may have different conveying speeds, which could lead to paper misalignment. A rotatable pressure roller is installed above the slow conveyor belt and is laterally offset from the upper conveyor belt. This pressure roller provides localized and controllable downward pressure on the upper surface of the paper, making it particularly suitable for handling slight warping of the paper or situations requiring additional fixing points. Its offset design from the upper conveyor belt avoids mechanical interference and allows the pressure roller to apply pressure independently in critical areas (such as paper edges or specific locations), enhancing control over the local stability of the paper and preventing edge warping, curling, or displacement. It effectively complements the overall constraint of the upper conveyor belt.

[0019] Optionally, the clamping structure further includes a rotating plate, a mounting rod, and fixing bolts. The clamping wheel is rotatably mounted on the rotating plate, and the rotating plate is rotatably mounted on the mounting rod. The rotation axis of the rotating plate is parallel to the rotation axis of the clamping wheel, and the rotating plate is fixed relative to the mounting rod by fixing bolts.

[0020] By employing the above technical solution, the position of the pressure roller is adjusted using an adjustment mechanism consisting of a rotating plate, a mounting rod, and fixing bolts. The rotating plate allows the pressure roller to swing angularly around an axis parallel to its own rotation axis, thereby adjusting the specific position of the pressure roller above the slow-speed conveyor belt (e.g., the rotating plate can be rotated 180°). The fixing bolts are used to reliably lock the position after adjustment. This structure allows the pressure roller to adapt more flexibly and precisely to the pressure requirements of different paper characteristics (such as thickness and length) or specific working conditions, optimizing the stability effect.

[0021] Optionally, the clamping structure further includes a fixed plate, an adjusting bolt, a nut, and an adjusting elastic element. The fixed plate is fixedly connected to the mounting rod by the fixing bolt. The fixed plate has a slotted hole for the screw of the adjusting bolt to be inserted and passed through. The nut is rotatably connected to the rotating plate and threadedly connected to the screw of the adjusting bolt. The adjusting elastic element is connected between the surface of the fixed plate away from the bolt head and the nut. The adjusting elastic element can make the fixed plate and the bolt head of the adjusting bolt abut against each other.

[0022] By adopting the above technical solution, the position of the pressure roller can be initially determined using a fixed plate and fixing bolts. Since the fixed plate is already fixed to the mounting rod by the fixing bolts, rotating the adjusting bolt causes the rotating plate, carrying the pressure roller, to rotate slightly around the rotating axis of the rotating plate, allowing for fine-tuning of the distance between the pressure roller and the upper surface of the slow-speed conveyor belt. This adds a fine-tuning and pressure control mechanism consisting of a fixed plate, adjusting bolts, nuts, and adjusting elastic elements. By rotating the adjusting bolt, the relative distance between the nut and the fixed plate can be changed, thereby precisely controlling the downward pressure applied by the pressure roller to the paper. The adjusting elastic element (such as a spring) provides cushioning, ensuring stable pressure and preventing rigid impact damage to the paper. The slotted holes allow for a certain range of linear displacement to accommodate adjustment. This structure allows the operator to conveniently and precisely adjust the clamping force according to actual needs, achieving the best paper fixing effect.

[0023] Optionally, a limit switch is also included, located above the end of the slow conveyor belt near the fast conveyor belt, for detecting whether the paper is curling at the edges.

[0024] By adopting the above technical solution, a limit switch is installed above the starting end of the slow conveyor belt, specifically for detecting whether the paper has "curled edges" (edge ​​curling or lifting). Once curling is detected, the limit switch can trigger an alarm or linkage control device (such as pausing the machine or adjusting relevant components), allowing operators to intervene in time to prevent paper jams, incomplete collection, paper damage, or even equipment failure caused by curling, effectively ensuring the continuity of the production process and the stability of product quality.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By utilizing the natural drop created by the height difference to stack the ends of adjacent sheets of paper, the paper speed is effectively reduced before entering the collection stage, which improves the stability of paper conveying, the neatness of collection, and the yield rate of products. 2. The design of the suction duct, suction drive source, and suction holes effectively suppresses the floating, suspending, or jumping phenomena of paper caused by airflow or its own characteristics during the transition to the slow conveyor belt. This ensures that the beginning of the paper behind can fall smoothly and controllably onto the end of the paper in front without colliding with the end of the paper in front, smoothly completing the stacking of the two papers, realizing the deceleration transition, and further improving the reliability and stability of the deceleration process. 3. The pressure rollers provide localized, controllable downward pressure on the upper surface of the paper, allowing the pressure rollers to apply pressure independently in critical areas, enhancing control over the local stability of the paper and preventing warping, curling, or displacement. Attached Figure Description

[0026] Figure 1 This is a structural diagram of this application.

[0027] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0028] Figure 3 This is a schematic diagram of the deceleration component in this application.

[0029] Figure 4 yes Figure 3 Enlarged view of point C in the middle.

[0030] Figure 5 yes Figure 1 Enlarged view of section B in the middle.

[0031] Figure 6 This is a schematic diagram of a partial structure of the gear highlighted in this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Conveying assembly; 11. High-speed conveyor belt; 2. Deceleration assembly; 21. Slow-speed conveyor belt; 22. Transition plate; 221. Suction hole; 222. Through hole; 23. Pressing structure; 231. Pressing wheel; 232. Rotating plate; 233. Mounting rod; 234. Fixing bolt; 235. Fixing plate; 236. Adjusting bolt; 237. Nut; 238. Adjusting elastic element; 239. Strip hole; 3. Suction drive source; 4. Suction duct; 5. Antistatic bar; 6. Upper conveyor belt; 7. Limit switch; 8. Mounting wheel assembly; 81. Driven wheel; 82. Drive wheel; 83. Driven wheel; 84. Winding wheel; 9. Mounting bracket; 100. Gear; 110. Handwheel; 120. Rack. Detailed Implementation

[0033] The following combination Figures 1-6 This application will be described in further detail.

[0034] This application discloses a conveying device for a slitting machine. (Refer to...) Figure 1The conveying device of the slitting machine includes a conveying assembly 1 and a reduction assembly 2, both used to convey the slit paper. The conveying assembly 1 includes a high-speed conveyor belt 11, and the conveying assembly 1 and the reduction assembly 2 are arranged along the conveying direction of the high-speed conveyor belt 11. The height of the end of the reduction assembly 2 near the high-speed conveyor belt 11 is lower than the height of the end of the high-speed conveyor belt 11 near the reduction assembly 2. The reduction assembly 2 includes a slow-speed conveyor belt 21, the conveying speed of which is lower than the conveying speed of the high-speed conveyor belt 11.

[0035] Reference Figure 1 and Figure 2 The deceleration assembly 2 also includes an inclined transition plate 22, which is fixedly mounted on the conveyor frame of the slow conveyor belt 21 and located between the fast conveyor belt 11 and the slow conveyor belt 21. The end of the transition plate 22 near the slow conveyor belt 21 is higher than the end of the transition plate 22 near the fast conveyor belt 11. In other embodiments, the transition plate 22 may be omitted, and the height of the slow conveyor belt 21 may be lower than the height of the fast conveyor belt 11.

[0036] Reference Figure 3 and Figure 4 The conveying device of the slitting machine also includes a suction drive source 3 and a suction duct 4 located below the transition plate 22. The suction duct 4 has multiple ducts. The suction drive source 3 is fixedly installed on the conveyor frame of the slow conveyor belt 21. The suction drive source 3 is a blower used to draw air from the suction duct 4. The transition plate 22 has multiple suction holes 221 penetrating its vertical surface, arranged along the width of the slow conveyor belt 21. The suction holes 221 communicate with the suction duct 4. The suction drive source 3 can draw air between the paper and the transition plate 22 through the suction duct 4 and the suction holes 221, thereby allowing the end of the paper to adhere to the transition plate 22.

[0037] Reference Figure 4 The transition plate 22 also has multiple through holes 222 penetrating its vertical surface, arranged along the width of the slow conveyor belt 21. An antistatic rod 5 extending along the width of the slow conveyor belt 21 is fixedly installed below the transition plate 22. The antistatic rod 5 abuts against the lower surface of the transition plate 22 and blocks the lower ends of the through holes 222. The antistatic rod 5 removes static electricity generated between the paper and the transition plate 22 due to friction.

[0038] Reference Figure 1The conveying device of the slitting machine also includes an upper conveyor belt 6 and a rotatable mounting wheel assembly 8. The rotation axes of the rollers in the mounting wheel assembly 8 all extend along the width direction of the slow conveyor belt 21, and the rollers in the mounting wheel assembly 8 also extend along the width direction of the slow conveyor belt 21. The upper conveyor belt 6 is located above the fast conveyor belt 11 and the slow conveyor belt 21. Multiple upper conveyor belts 6 are provided, arranged along the width direction of the slow conveyor belt 21. The multiple upper conveyor belts 6 are tensioned and wound around the mounting wheel assembly 8, and can rotate with the mounting wheel assembly 8.

[0039] Reference Figure 1 and Figure 3 The mounting wheel assembly 8 includes a drive wheel (not shown in the figure) and a driven wheel 81, both of which are rotatably mounted on the conveyor frame of the fast conveyor belt 11. The drive wheel is located above the end of the fast conveyor belt 11 away from the slow conveyor belt 21, and is driven to rotate by a drive motor. The driven wheel 81 is located above the end of the fast conveyor belt 11 near the slow conveyor belt 21.

[0040] Reference Figure 1 The mounting wheel assembly 8 also includes a drive wheel 82, two driven wheels 83, and two winding wheels 84. The drive wheel 82 is located above the end of the fast conveyor belt 11 near the slow conveyor belt 21, and is driven to rotate by a drive motor. The two driven wheels 83 are located on the same horizontal plane, and both are horizontally positioned above the drive wheel 82. One driven wheel 83 is located above the end of the fast conveyor belt 11 near the slow conveyor belt 21, and the other driven wheel 83 is located above the end of the slow conveyor belt 21 away from the fast conveyor belt 11. Both winding wheels 84 are located above the end of the slow conveyor belt 21 near the fast conveyor belt 11, and are arranged vertically. The lower winding wheel 84 is on the same horizontal plane as the drive wheel 82, and the upper winding wheel 84 is vertically positioned between the driven wheels 83 and the drive wheel 82.

[0041] Reference Figure 1 A conveying cavity for clamping and conveying paper is formed between the upper conveyor belt 6 and the fast conveyor belt 11, and between the upper conveyor belt 6 and the slow conveyor belt 21. Multiple upper conveyor belts 6 are tensioned and wound around the drive wheel and driven wheel 81. The multiple upper conveyor belts 6 first wind from the drive wheel 82 to the two driven wheels 83, then wind in an "S" shape around the two winding wheels 84, and finally wind back to the drive wheel 82. This forms two sets of upper conveyor belts 6, creating conveying cavities for clamping and conveying paper above the entire section of the fast conveyor belt 11 and above the end of the slow conveyor belt 21 near the fast conveyor belt 11. However, because the distance between the upper conveyor belt 6 located between the winding wheel 84 and the end of the slow conveyor belt 21 is large, the upper conveyor belt 6 in this section is inactive.

[0042] In other embodiments, the winding wheel 84 may be omitted, and the upper conveyor belt 6 functions on the entire length of both the fast conveyor belt 11 and the slow conveyor belt 21. In other embodiments, the winding wheel 84 may be omitted, and only a driven wheel 83 may be provided. The driven wheel 83 is located above the end of the slow conveyor belt 21 near the fast conveyor belt 11, and the upper conveyor belt 6 is tensioned and wound around the drive wheel 82 and the driven wheel 83. This arrangement is intended to prevent interference with other structures (such as the limit switch 7 and the clamping structure 23, which will be discussed later).

[0043] Reference Figure 2 and Figure 3 The slitting machine's conveying device also includes a limit switch 7, which is located above the end of the slow conveyor belt 21 near the fast conveyor belt 11. The limit switch 7 is located on the side of the winding wheel 84 near the fast conveyor belt 11. When paper on the slow conveyor belt 21 curls at the edge, the leading end of the paper touches the limit switch 7, triggering the alarm or control mechanism on the slitting machine. This can stop the conveying device to prevent more serious problems such as paper jams, paper damage, or equipment malfunctions.

[0044] Reference Figure 1 and Figure 3 and Figure 5 The deceleration assembly 2 also includes a clamping structure 23, located between the limit switch 7 and the winding wheel 84. The clamping structure 23 includes a mounting rod 233, a rotating plate 232, and clamping wheels 231. The mounting rod 233 is located above the end of the slow conveyor belt 21 near the fast conveyor belt 11, and is cylindrical in shape, extending along the width of the slow conveyor belt 21. Multiple rotating plates 232 and clamping wheels 231 are provided, each corresponding to one another, arranged along the width of the slow conveyor belt 21. One end of the rotating plate 232 is rotatably mounted on the mounting rod 233. The clamping wheels 231 are rotatably mounted on the end of the rotating plate 232 away from the mounting rod 233, with the rotation axis of the clamping wheels 231 parallel to the mounting rod 233, allowing the clamping wheels 231 to press the paper firmly onto the slow conveyor belt 21 without affecting paper feeding. The pressure roller 231 is offset from the upper conveyor belt 6 in the width direction of the slow conveyor belt 21.

[0045] Reference Figure 5The clamping structure 23 also includes a fixing bolt 234, a fixing plate 235, an adjusting bolt 236, a nut 237, and an adjusting elastic element 238, all corresponding to the clamping wheel 231. The fixing plate 235 has a mounting hole at one end for the screw of the fixing bolt 234 to be inserted and passed through, allowing it to be fixedly mounted on the mounting rod 233. The fixing plate 235 has a slotted hole 239 at the end away from the fixing bolt 234 for the screw of the adjusting bolt 236 to be inserted and passed through. The nut 237 is rotatably mounted on the rotating plate 232, with its rotation axis parallel to the mounting rod 233. The nut 237 is threadedly connected to the screw of the adjusting bolt 236. The adjusting elastic element 238 is sleeved on the threaded rod of the adjusting bolt 236, and the adjusting elastic element 238 is a compression spring. The adjusting elastic element 238 is pressed between the nut 237 and the surface of the fixing plate 235 away from the bolt head of the adjusting bolt 236, so that the adjusting elastic element 238 tightens the fixing plate 235 against the bolt head of the adjusting bolt 236. The fixing plate 235 is located between the pressure roller 231 and the adjusting bolt 236 to prevent interference between the adjusting bolt 236 and the pressure roller 231.

[0046] Reference Figure 3 and Figure 6 A mounting frame 9 is slidably mounted on the conveyor frame of the slow conveyor belt 21 along the conveying direction of the slow conveyor belt 21. A limit switch 7 and a mounting rod 233 are fixedly mounted on the mounting frame 9, and a winding wheel 84 is rotatably mounted on the mounting frame 9. A gear 100 is rotatably mounted on the mounting frame 9, and a handwheel 110 is fixedly mounted on the rotating shaft of the gear 100. A rack 120 extending along the conveying direction of the slow conveyor belt 21 is fixedly mounted on the conveyor frame of the slow conveyor belt 21, and the gear 100 meshes with the rack 120. The operator can adjust the positions of the limit switch 7, the clamping structure 23, and the winding wheel 84 on the slow conveyor belt 21 by rotating the handwheel, thereby accommodating paper of different lengths.

[0047] Reference Figure 1 The conveying assembly 1 also includes a pressing structure 23, which is the same as the pressing structure 23 in the deceleration assembly 2.

[0048] The implementation principle of the conveying device of the slitting machine in this application embodiment is as follows: When the slit paper is conveyed from the fast conveyor belt 11 to the slow conveyor belt 21, due to the faster conveying speed of the fast conveyor belt 11, the leading end of the paper directly bypasses the transition plate 22 and is conveyed directly to the slow conveyor belt 21. As the paper is conveyed along with the slow conveyor belt 21, the trailing end of the paper is conveyed to the transition plate 22. Under the action of the suction drive source 3, the trailing end of the paper adheres tightly to the upper surface of the transition plate 22, making the height of the trailing end of the paper lower than the height of the leading end. When the adjacent paper behind this paper also transitions to the slow conveyor belt 21, the leading end of the trailing paper is stacked on the trailing end of the leading paper. This cycle repeats, which not only realizes the transition of the paper conveying speed from fast to slow, but also minimizes the collision between adjacent sheets of paper, thus preventing damage.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A conveying device for a slitting machine, comprising a conveying assembly (1) for conveying slit paper, said conveying assembly (1) including a high-speed conveyor belt (11), characterized in that: It also includes a deceleration assembly (2) for conveying paper. The conveying assembly (1) and the deceleration assembly (2) are arranged along the conveying direction of the fast conveyor belt (11). The height of the end of the deceleration assembly (2) near the fast conveyor belt (11) is lower than the end of the fast conveyor belt (11) near the deceleration assembly (2). The deceleration assembly (2) includes a slow conveyor belt (21). The conveying speed of the slow conveyor belt (21) is less than the conveying speed of the fast conveyor belt (11).

2. The conveying device of a slitting machine according to claim 1, characterized in that: The deceleration assembly (2) also includes an inclined transition plate (22) located between the slow conveyor belt (21) and the fast conveyor belt (11). The end of the transition plate (22) near the slow conveyor belt (21) is higher than the end of the transition plate (22) near the fast conveyor belt (11).

3. The conveying device of a slitting machine according to claim 2, characterized in that: It also includes a suction drive source (3) and a suction pipe (4) located below the transition plate (22). The suction drive source (3) is used to draw air from the suction pipe (4). The transition plate (22) has a suction hole (221) that penetrates the vertical surface of the transition plate (22). The suction hole (221) is connected to the suction pipe (4).

4. The conveying device of a slitting machine according to claim 2, characterized in that: The transition plate (22) has a through hole (222) that penetrates the vertical surface of the transition plate (22). A static eliminator (5) is provided below the transition plate (22), and the static eliminator (5) blocks the lower end of the through hole (222).

5. The conveying device of a slitting machine according to claim 1, characterized in that: It also includes an upper conveyor belt (6) located above the fast conveyor belt (11) and the slow conveyor belt (21), the conveying direction of the upper conveyor belt (6) being the same as that of the slow conveyor belt (21), and the paper being placed between the upper conveyor belt (6) and the slow conveyor belt (21).

6. The conveying device of a slitting machine according to claim 5, characterized in that: The upper conveyor belt (6) is located above the fast conveyor belt (11) and above the end of the slow conveyor belt (21) near the fast conveyor belt (11).

7. The conveying device of a slitting machine according to claim 5, characterized in that: The deceleration assembly (2) further includes a clamping structure (23), which includes a clamping wheel (231) located above the slow conveyor belt (21). The clamping wheel (231) is rotatable about a rotation axis extending along the width direction of the slow conveyor belt (21). The clamping wheel (231) is offset from the upper conveyor belt (6) in the width direction of the slow conveyor belt (21).

8. The conveying device of a slitting machine according to claim 7, characterized in that: The clamping structure (23) further includes a rotating plate (232), a mounting rod (233) and a fixing bolt (234). The clamping wheel (231) is rotatably mounted on the rotating plate (232), and the rotating plate (232) is rotatably mounted on the mounting rod (233). The rotation axis of the rotating plate (232) is parallel to the rotation axis of the clamping wheel (231). The rotating plate (232) is fixed relative to the mounting rod (233) by the fixing bolt (234).

9. The conveying device of a slitting machine according to claim 8, characterized in that: The clamping structure (23) further includes a fixed plate (235), an adjusting bolt (236), a nut (237), and an adjusting elastic element (238). The fixed plate (235) is fixedly connected to the mounting rod (233) by a fixed bolt (234). The fixed plate (235) has a slot (239) for the screw of the adjusting bolt (236) to be inserted and passed through. The nut (237) is rotatably connected to the rotating plate (232). The nut (237) is threadedly connected to the screw of the adjusting bolt (236). The adjusting elastic element (238) is connected between the surface of the fixed plate (235) away from the bolt head of the adjusting bolt (236) and the nut (237). The adjusting elastic element (238) can make the fixed plate (235) and the bolt head of the adjusting bolt (236) abut together.

10. The conveying device of a slitting machine according to claim 1, characterized in that: It also includes a limit switch (7) located above the end of the slow conveyor belt (21) near the fast conveyor belt (11), the limit switch (7) being used to detect whether the paper is curled at the edge.

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