Double-layer collecting device for web cutting

Abstract

The present application relates to paper processing equipment technical field, disclose a kind of double-layer collecting device for roll paper large sheet cutting, including traction mechanism, cutting mechanism, double-layer conveying mechanism, double-layer collecting mechanism and stacking mechanism, double-layer conveying mechanism includes upper conveying belt and lower conveying belt, and front end is connected with cutting mechanism by conveying belt, double-layer collecting mechanism includes the upper collecting mechanism and lower collecting mechanism of same structure, upper collecting mechanism is connected with upper conveying belt, lower collecting mechanism is connected with lower conveying belt, stacking mechanism is located at the rear of double-layer collecting mechanism, for storing paper.The double-layer passage of the present application by upper conveying belt and lower conveying belt is formed, and the upper and lower collecting mechanism of symmetrical structure is matched, the high-speed, stable operation of production line is realized;Change stack operation is realized under non-stop state by stacking mechanism, and the continuous operation capacity and overall automation degree of production line are improved.

Description

Technical Field

[0001] This invention relates to the field of paper processing equipment technology, and in particular to a double-layer collection device for cutting large sheets of roll paper. Background Technology

[0002] In the field of roll paper cross-cutting packaging, the efficient, continuous, and damage-free collection of large sheets of paper after cutting is the core link to improve the operating efficiency of the production line.

[0003] Currently, the industry generally adopts a technical solution based on a single-layer conveyor and a paper receiving table combination, mainly divided into two categories: basic and improved. The basic technology uses a single-layer continuous conveyor combined with a single fixed paper receiving table to collect paper. Its structure is simple and low-cost, but when the paper receiving table is full, the production line must be completely stopped for manual stacking, leading to frequent production interruptions. Furthermore, due to the lack of effective deceleration buffers and automatic alignment mechanisms, it is prone to defects such as paper scattering, stack misalignment, and surface scratches under high-speed operation, seriously affecting the quality of the finished product. To alleviate downtime problems, the improved technology introduces an architecture of single-layer conveyor combined with alternating switching of two paper receiving tables, attempting to achieve non-stop stacking through paper receiving table translation. However, this solution is still limited by the nature of a single-layer physical channel and fails to construct a true two-layer diversion path. When dealing with the need for higher speed cutting, the paper lacks layer buffer due to inertia, often resulting in a rear-end collision where the previous sheet has not yet settled into position before the next sheet arrives quickly, causing scratches and contamination on the surface of laminated or specialty paper. In addition, the paper receiving table needs to be briefly paused during the switching process to calibrate the landing position. The height difference and path deviation during the switching further aggravate the problems of stacking skew, paper jams and corner folds. Especially for wide sheets of paper or thin paper, the inherent sagging and warping of single-layer conveying is difficult to eliminate and still requires manual intervention for sorting. At the same time, the current market is characterized by a surge in multi-specification, small-batch, short-term orders. Paper of different sizes needs to be collected and stacked separately. However, existing collection devices are limited by a single-channel architecture and fixed workstation design, and do not have the ability to switch paper collection according to size online. Whenever the order size is changed, the machine must be stopped to adjust the paper receiving table parameters, adapt the paper collection path, and clean the paper stack. This further aggravates the frequent interruption of the production process, significantly reduces the overall operating efficiency of the production line, and makes the collection system, which already has efficiency shortcomings, even more difficult to adapt to the needs of flexible production.

[0004] The fundamental defects of existing technologies are mainly reflected in the single-channel bottleneck in structural design, which makes it impossible to separate qualified and unqualified products immediately after cutting; it is impossible to produce different types of paper without stopping the machine; the control logic lacks a multi-dimensional coordination mechanism, making it difficult to achieve high-precision adaptive alignment and palletizing adjustment; the functional positioning focuses only on reducing downtime rather than building a closed-loop system for continuous production, resulting in overall efficiency and stability that cannot meet the needs of modern high-speed production lines. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a double-layer collection device for large-sheet cutting of roll paper, which achieves the advantages of double-layer diversion and collection of paper, improving production efficiency, reducing downtime, and preventing paper scattering and stacking misalignment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A double-layer collection device for cutting large sheets of roll paper further includes a double-layer conveying mechanism, a double-layer collection mechanism, and a stacking mechanism. The double-layer conveying mechanism includes an upper conveyor belt and a lower conveyor belt, and its front end is connected to the cutting mechanism via the conveyor belt. The double-layer collection mechanism includes an upper collection mechanism and a lower collection mechanism with identical structures. The upper collection mechanism is connected to the upper conveyor belt, and the lower collection mechanism is connected to the lower conveyor belt. The stacking mechanism is located behind the double-layer collection mechanism and is used to store paper.

[0007] Preferably, the device further includes a layered guiding mechanism located at the front end of the double-layer conveying mechanism. The layered guiding mechanism includes a waste material turning mechanism, an auxiliary conveying mechanism, and a layered turning mechanism arranged in sequence. The waste material turning mechanism and the layered turning mechanism have the same structure. The waste material turning mechanism includes a positioning shaft. One end of the positioning shaft is fixed to the equipment frame, and the other end is connected to a steering cylinder. The output shaft of the steering cylinder is rotatably connected to a steering arm. The other end of the steering arm is fixedly connected to a steering shaft, and a steering plate is fixedly connected to the upper surface of the steering shaft. The auxiliary conveying mechanism includes a first motor and a first conveying roller. The first motor is mounted on the equipment frame, and the output shaft of the first motor is rotatably connected to the first conveying roller through a gear set to provide paper conveying power for the layering guide mechanism.

[0008] Preferably, the upper collection mechanism includes a conveyor belt, an aligning mechanism, and a first lifting mechanism. The aligning mechanism is used to align the collected papers, and the first lifting mechanism is used to drive the upper collection mechanism to move vertically so that the papers can slide smoothly into the temporary storage area. A ball bearing is provided above the conveyor belt.

[0009] Preferably, the tidying mechanism includes two crossbars, which are laterally arranged between two side plates. Each end of the crossbar has a first slide block, and the first slide block is fitted with a first guide rail. The first guide rail is located inside the side plate, allowing the tidying mechanism to slide longitudinally within the upper collecting mechanism. A side-tapping cylinder is fixedly mounted at one end of the crossbar, and a side-tapping plate is mounted on the output shaft of the side-tapping cylinder. The side-tapping plate is slidably connected to the crossbar. A second motor is fixedly mounted in the middle of the crossbar, and a threaded screw is mounted on the output shaft of the second motor. A side-tapping cylinder is slidably mounted at the other end of the crossbar, and the mounting plate of the side-tapping cylinder is threadedly connected to the threaded screw. The rotation of the second motor drives the side-tapping cylinder to move horizontally. The output shaft of the side-tapping cylinder is mounted on a side-tapping plate, which is slidably connected to the crossbar.

[0010] Preferably, the straightening mechanism also includes a longitudinal limiting plate, which is set on the equipment frame by a track slider structure and moves up and down by a cylinder. The double-layer collection mechanism also includes a horizontal adjustment mechanism, which includes a horizontal motor. Two horizontal motors are arranged as a group, and the two groups of horizontal motors are set on the side plates on both sides. The two horizontal motors are connected by a belt and a pulley. A positioning clamp is set on the belt, and the positioning clamp is fixedly connected to the crossbar to provide power for the longitudinal movement of the crossbar.

[0011] Preferably, the upper collection mechanism further includes a first lifting mechanism, which includes a first lifting motor and a first lifting chain. The first lifting motor is mounted on the side plate, and the output shaft of the first lifting motor passes through the side plate and is connected to the bearing of another side plate. Gears are respectively mounted on the inner side of the output shaft of the side plate. Gears are respectively mounted on the equipment frame above the gears. The gears on both sides are located on the same vertical line and are connected by the first lifting chain. The two ends of the first lifting chain are fixed to the side guard plates of the conveyor belt of the upper collection mechanism.

[0012] Preferably, the palletizing mechanism includes a palletizing frame, a conveyor belt in the middle of the palletizing frame, and a second lifting mechanism between the conveyor belt and the palletizing frame support. The second lifting mechanism includes a second lifting motor, which is located on the outside of the palletizing frame. The output shaft of the second lifting motor passes through the palletizing frame and is equipped with a drive gear. The second drive gear is mounted on the upper inner side of the palletizing frame via a bearing. The drive gear and the driven gear are located on the same vertical line. A transmission shaft is mounted on the output shaft of the second lifting motor. The other end of the transmission shaft is connected to the palletizing frame via a bearing, and a drive gear is mounted at the connection point. A driven gear is also mounted above the drive gear. The two sets of drive gears and driven gears are connected by a second lifting chain, and both ends of the second lifting chain are fixed to the sides of the conveyor belt.

[0013] Preferably, the palletizing mechanism also includes a lifting cylinder and lifting rods. The lifting cylinder is mounted on the palletizing frame and located below the conveyor belt. Multiple lifting rods are mounted on the output shaft of the lifting cylinder via plates, and pulleys are mounted on the upper surface of the lifting rods.

[0014] Preferably, a palletizing frame is installed behind the palletizing skeleton, and multiple limiting rods are vertically installed on one side of the palletizing skeleton. A third motor and two bearings are fixedly installed on the plate below the lifting rods. A drive shaft is rotatably installed on the two bearings. The third motor and the drive shaft are arranged in parallel. The output shaft of the third motor is connected to the drive shaft through a gear and a rack. Racks are installed on both sides of the palletizing skeleton, and a gear is installed at the end of the drive shaft, which cooperates with the rack.

[0015] Preferably, the device also includes a control component, which is electrically connected to the traction mechanism, the cutting mechanism, the double-layer conveying mechanism, the layered guiding mechanism, the double-layer collecting mechanism, and the palletizing mechanism.

[0016] The present invention has the following beneficial effects: 1. By setting up a double-layer conveying mechanism, a layered guiding mechanism, a double-layer collecting mechanism, and a palletizing mechanism that work together, the production line can be transported to the double-layer collecting mechanism without stopping the machine when producing paper of different sizes. This improves the operating efficiency of the production line, increases production efficiency, and reduces production costs.

[0017] 2. This invention achieves parallel processing of paper by setting up a double-layer channel consisting of an upper and lower conveyor belt, combined with a symmetrical upper and lower collection mechanism. This effectively breaks through the physical bottleneck of traditional single-layer conveying under high-speed cutting, and avoids paper collision, scratching and stacking disorder caused by excessive speed. The double-channel design significantly increases the paper processing capacity per unit time without increasing the equipment floor space, and realizes high-speed and stable operation of the production line.

[0018] 3. The layered guiding mechanism of the present invention integrates waste material turning, auxiliary conveying and layered turning functions. By using the cooperation of the turning cylinder and the turning plate, it realizes the automatic rejection of waste material and the precise diversion of qualified products. It works in conjunction with the neat mechanism in the double-layer collection mechanism. By using the second motor to drive the threaded screw, the lateral spacing of the side plate can be automatically adjusted to adapt to paper of different widths. The longitudinal limit plate and the horizontal adjustment mechanism realize the precise control of the longitudinal position. This not only ensures that the edges of the paper stack are neat and square, but also greatly enhances the compatibility of the equipment with different paper specifications and the level of automation.

[0019] 4. The first lifting mechanism of the upper / lower collection mechanism and the second lifting mechanism of the palletizing mechanism of the present invention can dynamically adjust the receiving position in real time according to the height of the paper stack, ensuring that the paper always slides in smoothly at the best angle and preventing scattering due to excessive drop. The palletizing mechanism further realizes the non-destructive transfer of the paper stack from the collection area to the palletizing rack through the mechanical linkage of "lifting + translation + release". This design solves the problem of unloading difficulties caused by height changes in traditional palletizing, supports the completion of pallet changing operation without stopping the machine, and greatly improves the continuous operation capability and overall automation level of the production line. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the layered guiding mechanism of the present invention; Figure 4 Appendix to this invention Figure 3Enlarged view of a portion of point A in the middle; Figure 5 This is a schematic diagram of the double-layer collection mechanism of the present invention; Figure 6 This is a schematic diagram of the internal structure of the double-layer collection mechanism of the present invention; Figure 7 This is a schematic diagram of the palletizing mechanism of the present invention; Figure 8 This is a schematic diagram of the lifting cylinder and lifting rod of the present invention; Figure 9 This is a schematic diagram of the structure of the third motor, drive shaft, and rack of the present invention; in: 1. Traction mechanism; 2. Cutting mechanism; 3. Double-layer conveyor mechanism; 31. Upper conveyor belt; 32. Lower conveyor belt; 4. Layered guiding mechanism; 41. Waste material steering mechanism; 411. Positioning shaft; 412. Steering cylinder; 413. Steering arm; 414. Steering shaft; 415. Steering plate; 42. Layered steering mechanism; 43. Auxiliary conveying mechanism; 431. First motor; 432. First conveying roller; 5. Double-layer collection mechanism; 51. Upper collection mechanism; 511. Organizing mechanism; 5111. First guide rail; 5112. First slide block; 5113. Side plate; 5114. Side cylinder; 5115. Second motor; 5116. Threaded screw; 5117. Crossbar; 5118. Longitudinal limiting plate; 512. First lifting mechanism; 5121. First lifting motor; 5122. First lifting chain; 52. Lower-level collection mechanism; 53. Slippery ball; 54. Side panels; 55. Horizontal adjustment mechanism; 551. Horizontal motor; 552. Positioning clamp; 6. Palletizing mechanism; 61. Palletizing frame; 62. Second lifting mechanism; 621. Second lifting motor; 622. Second lifting chain; 63. Lifting cylinder; 64. Lifting rod; 641. Pulley; 65. Limiting rod; 66. Stacking rack; 67. Third motor; 68. Drive shaft; 69. Rack and pinion. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-9 As shown, this application proposes a double-layer collection device for cutting large sheets of roll paper, including a traction mechanism 1 and a cutting mechanism 2, as well as a double-layer conveying mechanism 3, a double-layer collection mechanism 5, and a stacking mechanism 6. The double-layer conveying mechanism 3 includes an upper conveyor belt 31 and a lower conveyor belt 32, with its front end connected to the cutting mechanism 2 via the conveyor belts. The double-layer collection mechanism 5 includes an upper collection mechanism 51 and a lower collection mechanism 52 with identical structures; the upper collection mechanism 51 is connected to the upper conveyor belt 31, and the lower collection mechanism 52 is connected to the lower conveyor belt 32. The stacking mechanism 6 is located behind the double-layer collection mechanism 5 and is used to store the paper. The traction mechanism 1 continuously and stably feeds the roll paper from the material rack into the subsequent processing stage, ensuring that the paper tension and speed meet production requirements. The cutting mechanism 2 precisely cuts the roll paper fed by the traction mechanism 1 horizontally or vertically, processing it into single sheets of predetermined size. The double-layer conveying mechanism 3 receives the paper output from the cutting mechanism 2 and diverts it to the upper conveyor belt 31 and the lower conveyor belt 32, realizing parallel paper conveying. The upper conveyor belt 31 and the lower conveyor belt 32 are the core components of the double-layer conveying mechanism 3, respectively responsible for conveying the paper to the corresponding upper collection mechanism 51 and lower collection mechanism 52, independently processing the paper in their respective channels. The stacking mechanism 6 is located behind the double-layer collection mechanism 5, used to receive and neatly stack the paper from the double-layer collection mechanism 5, forming a stable paper stack for subsequent handling or packaging. The double-layer conveying mechanism 3 and the double-layer collecting mechanism 5 construct a paper channel for parallel processing, effectively avoiding the problems of paper tailing, scratching and stacking disorder during high-speed cutting in traditional single-layer conveying; the stacking mechanism 6 enables the paper to be stacked continuously and neatly, providing a basis for non-stop stacking, thereby greatly improving the continuous operation capability of the roll paper large sheet cutting production line.

[0023] like Figure 3 and Figure 4As shown, the device also includes a layered guiding mechanism 4, which is located at the front end of the double-layer conveying mechanism 3. The layered guiding mechanism 4 includes a waste material turning mechanism 41, an auxiliary conveying mechanism 43, and a layered turning mechanism 42 arranged sequentially. The waste material turning mechanism 41 and the layered turning mechanism 42 have the same structure. The waste material turning mechanism 41 includes a positioning shaft 411, one end of which is fixed to the equipment frame, and the other end is connected to a turning cylinder 412. The output shaft of the turning cylinder 412 is rotatably connected to a turning arm 413, and the other end of the turning arm 413 is fixedly connected to a turning shaft 414. A turning plate 415 is fixedly connected to the upper surface of the turning shaft 414. The auxiliary conveying mechanism 43 includes a first motor 431 and a first conveying roller 432. The first motor 431 is mounted on the equipment frame, and the output shaft of the first motor 431 is rotatably connected to the first conveying roller 432 through this wheel assembly, providing paper conveying power for the layered guiding mechanism 4. The waste deflection mechanism 41 can promptly separate and guide the waste generated during cutting (such as scraps or defective products) from the main conveying path to the waste collection area through the deflection action of the deflection plate 415, according to preset instructions or sensor detection results. This avoids waste from mixing with the qualified product stream and ensures the purity of the subsequently collected paper. The auxiliary conveying mechanism 43 provides stable forward momentum for the paper, ensuring that the paper will not stop or pile up due to insufficient inertia when passing through the deflection mechanism. Especially in high-speed cutting scenarios, it can effectively prevent the paper from becoming chaotic at the diversion point. The layering deflection mechanism 42 accurately guides qualified paper to the upper conveyor belt 31 or the lower conveyor belt 32 according to the electrical signal of the control terminal, realizing the physical layering of the paper. This not only improves the automation level of paper processing and reduces manual intervention, but also ensures that the paper stream entering the double-layer collection system 5 is neat, pure, and correctly layered, thereby significantly improving the operational stability, efficiency, and finished product quality of the entire roll paper large sheet cutting production line.

[0024] like Figure 5 and Figure 6 As shown, the upper collection mechanism 51 includes a conveyor belt, an aligning mechanism 511, and a first lifting mechanism 512. The aligning mechanism 511 is used to align the collected paper, and the first lifting mechanism 512 is used to drive the upper collection mechanism 51 to move vertically, allowing the paper to slide smoothly into the temporary storage area. A ball bearing 53 is installed above the conveyor belt. The ball bearing 53 above the conveyor belt ensures the stability of the paper when entering the collection area and assists in precise alignment adjustment of the paper. The aligning mechanism 511 aligns the left and right sides of the paper. The first lifting mechanism 512 realizes the vertical displacement adjustment of the upper collection mechanism 51, ensuring that the paper can slide smoothly into the temporary storage area, effectively increasing the storage capacity of paper, reducing the frequency of manual intervention, and significantly improving production efficiency and automation level.

[0025] like Figure 5and Figure 6 As shown, the tidying mechanism 511 includes two crossbars 5117, which are laterally arranged between two side plates 54. Each end of the crossbars 5117 is provided with a first slide block 5112, and the first slide block 5112 is fitted with a first guide rail 5111. The first guide rail 5111 is located inside the side plate 54. The tidying mechanism 511 can slide longitudinally within the upper collecting mechanism 51. One end of each crossbar 5117 is fixedly equipped with a side-tapping cylinder 5114, and the output shaft of the side-tapping cylinder 5114 is provided with a side-tapping plate 5113. A striking plate 5113 is slidably connected to a crossbar 5117. A second motor 5115 is fixedly mounted in the middle of the crossbar 5117. The output shaft of the second motor 5115 is equipped with a threaded screw 5116. A side-striking cylinder 5114 is slidably mounted at the other end of the crossbar 5117. The mounting plate of the side-striking cylinder 5114 is threadedly connected to the threaded screw 5116. The rotation of the second motor 5115 drives the side-striking cylinder 5114 to move horizontally. The output shaft of the side-striking cylinder 5114 is equipped with a side-striking plate 5113, which is slidably connected to the crossbar 5117. By using the second motor 5115 to drive the threaded screw 5116 to rotate, the side-striking cylinder 5114 mounted on the crossbar 5117 is driven to move horizontally. The spacing of the side-striking plates 5113 is quickly adjusted according to the actual width of the paper, thereby achieving adaptive alignment for different paper sizes.

[0026] like Figure 5 and Figure 6 As shown, the tidying mechanism 511 also includes a longitudinal limiting plate 5118, which is mounted on the equipment frame via a track slider structure. The longitudinal limiting plate 5118 moves up and down via a cylinder. The double-layer collecting mechanism 5 also includes a horizontal adjustment mechanism 55, which includes a horizontal motor 551. Two horizontal motors 551 form a group, and the two groups of horizontal motors 551 are mounted on the side plates 54 on both sides. The two horizontal motors 551 are connected by a belt and a pulley. A positioning clamp 552 is mounted on the belt, and the positioning clamp 552 is fixedly connected to the crossbar 5117, providing power for the longitudinal movement of the crossbar 5117. The longitudinal limiting plate 5118 is installed via a track slider structure and driven by a cylinder to move up and down. This allows the longitudinal limiting plate 5118 to adjust its position in real time according to the stacking height of the paper. It provides effective longitudinal obstruction when the paper enters the collection area, preventing the paper from rushing out due to inertia or being misaligned longitudinally, thus ensuring that the longitudinal boundary of the paper stack is neat. The horizontal adjustment mechanism 55 enables the side plate 5113 to achieve longitudinal displacement, and the striking position involves both sides of the paper, improving the neatness of paper collection and enhancing the equipment's adaptability to different paper sizes.

[0027] The upper collection mechanism 51 further includes a first lifting mechanism 512, which includes a first lifting motor 5121 and a first lifting chain 5122. The first lifting motor 5121 is mounted on a side plate 54, and its output shaft passes through the side plate 54 and is connected to another side plate 54 via a bearing. Gears are respectively installed on the inner side of the output shaft on the side plate 54, and gears are respectively installed on the equipment frame above the gears. The gears on both sides are located on the same vertical line and are connected by the first lifting chain 5122. The two ends of the first lifting chain 5122 are fixed to the side guard plates of the conveyor belt of the upper collection mechanism 51. The first lifting motor 5121 drives its output shaft to rotate, and through the synergistic action of the gears and the first lifting chain 5122, the rotational motion is converted into a smooth vertical lifting motion of the upper collection mechanism 51. The two ends of the first lifting chain 5122 are fixed to the guard plates on both sides of the conveyor belt of the upper collection mechanism 51, ensuring that the entire collection mechanism can be lifted and lowered as a whole. The upper collection mechanism 51 can adjust its own position in real time according to the height of the paper stack, thereby ensuring that the paper that enters later can slide smoothly into the temporary storage area at the best angle and height, effectively avoiding problems such as unstable paper stacking, paper jams or drop point deviation caused by height mismatch.

[0028] like Figures 7-9 As shown, the palletizing mechanism 6 includes a palletizing frame 61, with a conveyor belt in the middle of the palletizing frame 61. A second lifting mechanism 62 is installed on the support of the palletizing frame 61 and the conveyor belt. The second lifting mechanism 62 includes a second lifting motor 621, which is located on the outside of the palletizing frame 61. The output shaft of the second lifting motor 621 passes through the palletizing frame 61 and is equipped with a drive gear. The second drive gear is installed on the upper inner side of the palletizing frame 61 through a bearing. The drive gear and the driven gear are located on the same vertical line. A transmission shaft 68 is installed on the output shaft of the second lifting motor 621. The other end of the transmission shaft 68 is connected to the palletizing frame 61 through a bearing, and a drive gear is installed at the connection. A driven gear is also installed above the drive gear. The two sets of drive gears and driven gears are connected by a second lifting chain 622, and the two ends of the second lifting chain 622 are fixed to the side of the conveyor belt. Driven by the second lifting motor 621, the second lifting mechanism 62 can adjust the vertical height of the conveyor belt in real time through the cooperation of the driving gear, the driven gear, and the second lifting chain 622, and is used to pick up the paper that slides into the stacking mechanism 6 from the upper collection mechanism 51 or the lower collection mechanism 52.

[0029] The palletizing mechanism 6 also includes a lifting cylinder 63 and lifting rods 64. The lifting cylinder 63 is mounted on the palletizing frame 61 and located below the conveyor belt. Multiple lifting rods 64 are mounted on the output shaft of the lifting cylinder 63 via plates. Pulleys 641 are mounted on the upper surface of the lifting rods 64.

[0030] A palletizing frame 66 is installed behind the palletizing frame 61. The palletizing frame 66 is located on one side of the palletizing frame 61 and has multiple limiting rods 65 vertically installed. A third motor 67 and two bearings are fixedly installed on the plate below the lifting rod 64. A drive shaft 68 is rotatably installed on the two bearings. The third motor 67 and the drive shaft 68 are arranged in parallel. The output shaft of the third motor 67 is connected to the drive shaft 68 through a gear and a rack 69. Racks 69 are installed on both sides of the palletizing frame 61. A gear is installed at the end of the drive shaft 68 and it cooperates with the rack 69.

[0031] After the palletizing mechanism 6 receives a stack of paper from the double-layer collection mechanism 5, the second lifting mechanism 62 drives the conveyor belt, lifting rods 64, and paper stack upwards until the bottom of the paper stack is higher than the limit rod 65. Then, the lifting cylinder 63 starts working, raising multiple lifting rods 64 and simultaneously lifting the paper stack above them. The third motor 67 starts working, driving the paper stack forward until its rear side passes the limit rod 65. It then moves downwards via the second lifting mechanism 62. Once in position, the third motor 67 works again to retract the lifting rods 64. Under the action of the limit rod 65, the paper stack remains within the palletizing frame 66, gradually restoring its components for receiving paper from the double-layer collection mechanism 5 again. This solves the problems of decreased palletizing quality and difficulty in unloading caused by changes in stacking height in traditional palletizing mechanisms during high-speed production. It achieves efficient and non-destructive processing throughout the entire process from paper receiving and stacking to final unloading, improving production efficiency and automation levels.

[0032] The device also includes a control component, which is electrically connected to the traction mechanism 1, the cutting mechanism 2, the double-layer conveying mechanism 3, the layered guiding mechanism 4, the double-layer collecting mechanism 5, and the palletizing mechanism 6.

[0033] The control components include a PLC controller, motion controller, touch screen, signal acquisition modules (paper posture sensor, flow timing sensor, paper stack height sensor, pressure sensor), servo driver, and cylinder controller, enabling the control components to acquire the operating status of each mechanism in real time and send control commands to the actuators of each mechanism. This solution can be adapted using existing technologies.

[0034] In the description of this invention, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only to describe the invention and not to require the invention to be constructed or operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" in this invention should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms based on the specific circumstances.

[0035] The above description represents the preferred mode of operation of the present invention. The specific operational modes are provided solely for a better understanding of the invention's concept. Those skilled in the art can make various improvements or equivalent substitutions based on the principles of this invention, and these improvements or equivalent substitutions are also considered to fall within the scope of protection of this invention.

Claims

1. A double-layer collecting device for web-fed cutting, comprising a traction mechanism (1) and a cutting mechanism (2), characterized in that: It also includes a double-layer conveying mechanism (3), a double-layer collecting mechanism (5), and a palletizing mechanism (6). The double-layer conveying mechanism (3) includes an upper conveyor belt (31) and a lower conveyor belt (32), and its front end is connected to the cutting mechanism (2) through the conveyor belt. The double-layer collecting mechanism (5) includes an upper collecting mechanism (51) and a lower collecting mechanism (52) with the same structure. The upper collecting mechanism (51) is connected to the upper conveyor belt (31), and the lower collecting mechanism (52) is connected to the lower conveyor belt (32). The palletizing mechanism (6) is located behind the double-layer collecting mechanism (5) and is used to store paper.

2. A double collecting device for web cutting according to claim 1, characterized in that: The device also includes a layered guiding mechanism (4), which is located at the front end of the double-layer conveying mechanism (3). The layered guiding mechanism (4) includes a waste material turning mechanism (41), an auxiliary conveying mechanism (43), and a layered turning mechanism (42) arranged in sequence. The waste material turning mechanism (41) and the layered turning mechanism (42) have the same structure. The waste material turning mechanism (41) includes a positioning shaft (411). One end of the positioning shaft (411) is fixed to the equipment frame, and the other end is connected to a turning cylinder (412). The output shaft of the cylinder (412) is rotatably connected to the steering arm (413), and the other end of the steering arm (413) is fixedly connected to the steering shaft (414). The upper surface of the steering shaft (414) is fixedly connected to the steering plate (415). The auxiliary conveying mechanism (43) includes a first motor (431) and a first conveying roller (432). The first motor (431) is mounted on the equipment frame. The output shaft of the first motor (431) is rotatably connected to the first conveying roller (432) through a gear set to provide paper conveying power for the layering guide mechanism (4).

3. A double collecting device for web cutting according to claim 1, characterized in that: The upper collection mechanism (51) includes a conveyor belt, a tidying mechanism (511) and a first lifting mechanism (512). The tidying mechanism (511) is used to tidy up the collected paper. The first lifting mechanism (512) is used to drive the upper collection mechanism (51) to move vertically so that the paper can slide smoothly into the temporary storage area. A ball bearing (53) is set above the conveyor belt.

4. A double collecting device for web cutting according to claim 3, characterized in that: The tidying mechanism (511) includes two crossbars (5117), which are laterally arranged between two side plates (54). Each end of the crossbars (5117) is provided with a first slide block (5112), and the first slide block (5112) is fitted with a first guide rail (5111). The first guide rail (5111) is located inside the side plate (54). The tidying mechanism (511) can slide longitudinally within the upper collection mechanism (51). One end of each crossbar (5117) is fixedly provided with a side-slapping cylinder (5114), and the output shaft of the side-slapping cylinder (5114) is provided with a side-slapping plate (5113). (5113) is slidably connected to the crossbar (5117). A second motor (5115) is fixedly installed in the middle of the crossbar (5117). A threaded screw (5116) is installed on the output shaft of the second motor (5115). A side-slapping cylinder (5114) is slidably installed at the other end of the crossbar (5117). The mounting plate of the side-slapping cylinder (5114) is threadedly connected to the threaded screw (5116). The second motor (5115) rotates and drives the side-slapping cylinder (5114) to move horizontally. A side-slapping plate (5113) is installed on the output shaft of the side-slapping cylinder (5114). The side-slapping plate (5113) is slidably connected to the crossbar (5117).

5. A double-layer collecting device for cutting large sheets of roll paper according to claim 4, characterized in that: The tidying mechanism (511) also includes a longitudinal limiting plate (5118), which is set on the equipment frame by a track slider structure. The longitudinal limiting plate (5118) moves up and down by a cylinder. The double-layer collection mechanism (5) also includes a horizontal adjustment mechanism (55), which includes a horizontal motor (551). Two horizontal motors (551) are in a group. The two groups of horizontal motors (551) are set on the side plates (54) on both sides. The two horizontal motors (551) are connected by a belt and a pulley. A positioning clamp (552) is set on the belt. The positioning clamp (552) is fixedly connected to the crossbar (5117) to provide power for the longitudinal movement of the crossbar (5117).

6. A double-layer collecting device for cutting large sheets of roll paper according to claim 5, characterized in that: The upper collection mechanism (51) further includes a first lifting mechanism (512), which includes a first lifting motor (5121) and a first lifting chain (5122). The first lifting motor (5121) is mounted on a side plate (54). The output shaft of the first lifting motor (5121) passes through the side plate (54) and is connected to the bearing of another side plate (54). Gears are respectively mounted on the inner side of the output shaft of the side plate (54). Gears are respectively mounted on the equipment frame above the gears. The gears on both sides are located on the same vertical line and are connected by the first lifting chain (5122). The two ends of the first lifting chain (5122) are fixed to the side guard plates of the conveyor belt of the upper collection mechanism (51).

7. A double-layer collecting device for cutting large sheets of roll paper according to claim 1, characterized in that: The palletizing mechanism (6) includes a palletizing frame (61), a conveyor belt is provided in the middle of the palletizing frame (61), and a second lifting mechanism (62) is provided between the conveyor belt and the palletizing frame (61). The second lifting mechanism (62) includes a second lifting motor (621), which is located on the outside of the palletizing frame (61). The output shaft of the second lifting motor (621) passes through the palletizing frame (61) and is provided with a drive gear. The second drive gear is provided above the inner side of the palletizing frame (61) through a bearing. The drive gear and the driven gear are located on the same vertical line. A transmission shaft (68) is provided on the output shaft of the second lifting motor (621). The other end of the transmission shaft (68) is connected to the palletizing frame (61) through a bearing, and a drive gear is provided at the connection. A driven gear is also provided above the drive gear. The two sets of drive gears and driven gears are connected by a second lifting chain (622). The two ends of the second lifting chain (622) are fixed to the side of the conveyor belt.

8. A double-layer collecting device for cutting large sheets of roll paper according to claim 7, characterized in that: The palletizing mechanism (6) also includes a lifting cylinder (63) and lifting rods (64). The lifting cylinder (63) is mounted on the palletizing frame (61) and located below the conveyor belt. Multiple lifting rods (64) are mounted on the output shaft of the lifting cylinder (63) via plates. A pulley (641) is mounted on the upper surface of the lifting rods (64).

9. A double-layer collecting device for cutting large sheets of roll paper according to claim 8, characterized in that: The palletizing frame (61) is provided with a palletizing rack (66) behind it. The palletizing rack (66) is provided with multiple limiting rods (65) on one side of the palletizing frame (61). The lifting rod (64) is fixedly provided with a third motor (67) and two bearings on the plate below it. The two bearings are rotatably provided with a transmission shaft (68). The third motor (67) and the transmission shaft (68) are arranged in parallel. The output shaft of the third motor (67) is connected to the transmission shaft (68) through a gear and a rack (69). The palletizing frame (61) is provided with racks (69) on both sides. The end of the transmission shaft (68) is provided with a gear and cooperates with the rack (69).

10. A double-layer collecting device for cutting large sheets of roll paper according to claim 1, characterized in that: The device also includes a control component, which is electrically connected to the traction mechanism (1), the cutting mechanism (2), the double-layer conveying mechanism (3), the layered guiding mechanism (4), the double-layer collecting mechanism (5), and the palletizing mechanism (6).

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