A cutting and stacking production line for cross-grain conveying corrugated cardboard

Abstract

This invention discloses a cross-grain conveying corrugated cardboard cutting and stacking production line in the field of cardboard processing technology, including a negative pressure conveying platform, a die-cutting machine, and a stacking platform. The negative pressure conveying platform, die-cutting machine, and stacking platform are arranged sequentially from front to back. The cardboard is adsorbed and conveyed in the cross-grain direction by the negative pressure conveying platform, the die-cutting machine cuts the cardboard, and the stacking platform stacks the cardboard. This device can convey and cut corrugated paper in the cross direction, forming a streamlined production line. The conveying, cutting, and stacking of cardboard can be directly connected by equipment, which not only simplifies the steps but also improves efficiency. Moreover, this device can directly stack and stack the cut cardboard automatically, forming a cardboard conveying and cutting production line that can convey and cut in the cross direction. From corrugated paper raw materials, it can be directly processed into cardboard that can be folded into cardboard boxes, simplifying the overall production line, occupying little space, and simplifying production equipment and processes.

Description

Technical Field

[0001] This invention relates to the field of carton processing technology, and in particular to a cutting and stacking production line for cross-grain conveying corrugated cardboard. Background Technology

[0002] When making cardboard boxes from corrugated cardboard, the face paper, corrugated core paper, and liner paper need to be glued together as a single sheet. Then, a cutting machine is used to cut off the corners of the corrugated cardboard. Next, the corrugated cardboard is pressed to create creases. Then, the left and right sides of a single piece of corrugated cardboard are nailed together, creating two folded pieces of cardboard that unfold into a square cylinder. Finally, a manual sanding machine is used to remove any remaining scraps from the edges. The boxes are then bundled and packaged to form the finished product. This process facilitates transportation and storage. When in use, the boxes unfold to form an open top and bottom. The bottom and top panels are then folded along the creases to complete the box.

[0003] Corrugated paper has horizontal and vertical corrugations. The corrugation direction of cardboard refers to the arrangement direction of the corrugations in the cardboard, which is usually divided into two types: vertical and horizontal.

[0004] Corrugated cardboard has high strength along the vertical grain, and currently it needs to be conveyed along the vertical grain to ensure that the cardboard remains flat during transport. After the corrugated cardboard is cut, it still needs to be folded, and this folding must be done along the horizontal grain, which means that the cardboard processing requires both horizontal and vertical rotation.

[0005] If the cross-grain strength of the cardboard is insufficient, the rear end will warp when encountering resistance during transport, causing the cardboard to be folded and damaged. To simplify the process, the cardboard needs to be transported along the cross-grain direction. Corrugated cardboard has high vertical rigidity; cutting along the vertical grain will affect the cutting direction, causing the cut lines of the carton to be tilted, resulting in errors and rendering the carton unusable. Therefore, folded cartons must always be cut along the cross-grain direction of the corrugated cardboard.

[0006] The entire process of making cardboard boxes requires first vertically conveying and cutting alignment, then turning the corrugated single-layer boards after cutting through a turning device, then cutting them one by one, and then gluing or binding at the overlapping folds at both ends of the cardboard to make the single-layer cardboard roll horizontally into a straight double-layer cardboard, and then stacking them into a stack for packaging. The operation is cumbersome and the production efficiency is low.

[0007] Based on this, the present invention designs a cutting and stacking production line for cross-grain conveying corrugated cardboard to solve the above problems. Summary of the Invention

[0008] The purpose of this invention is to provide a cross-grain conveying corrugated cardboard cutting and stacking production line. This device can cross-grain convey and cut corrugated cardboard without the need for an additional production line for turning, cutting, and bending. This device forms a streamlined production line, where conveying, cutting, and stacking of cardboard can be directly connected. This not only simplifies the steps but also improves efficiency. Furthermore, this device automatically stacks and pallets the cut cardboard, forming a carton board conveying and manufacturing production line that can cross-grain convey and cut. By directly processing corrugated cardboard raw materials into cardboard that can be folded into cartons, this provides a better solution for the entire production process, simplifies the overall production line, occupies less space, and simplifies production equipment and processes.

[0009] The present invention is implemented as follows: a cutting and stacking production line for cross-grain conveying corrugated cardboard, comprising: a negative pressure conveying platform, a die-cutting machine and a palletizing platform; wherein the negative pressure conveying platform, the die-cutting machine and the palletizing platform are arranged sequentially from front to back; The negative pressure conveying platform includes a conveying base, a drive ring, an anti-slip sleeve, a drive shaft, and a locking rod; The conveying base is a frame base with a flat top. Multiple clearance holes are opened on the top platform of the conveying base, and each clearance hole communicates with the interior of the conveying base. The drive shaft is a hollow cylindrical tube. Multiple drive shafts are horizontally arranged in the left-right direction inside the conveying base. Each drive shaft is arranged parallel to each other at the same horizontal height. The drive shaft is connected to an external motor for driving. The inner hole of the drive shaft is connected to a negative pressure pipe through a rotary joint. Multiple negative pressure holes are also formed on the outer wall of the drive shaft, and each negative pressure hole penetrates the tube wall of the drive shaft. Each of the drive shafts is vertically fitted with multiple drive rings; Each of the drive rings is a metal ring, and multiple drive rings on the same drive shaft are arranged in parallel to each other, and each drive ring on the same drive shaft is coaxial. The top of each drive ring extends through a clearance hole above the delivery base; A locking groove is also provided on the annular outer wall of the drive ring. The locking groove is recessed downward and is located on the outer wall of the drive ring. The locking groove is coaxial with the drive ring and is an annular channel connected end to end. The left and right sides of the locking groove are closed. Multiple locking holes are also provided in the locking groove. The locking holes penetrate the side wall of the drive ring. A vent hole is opened on the axis of the locking rod, the vent hole penetrates both ends of the locking rod, each locking hole and a negative pressure hole are locked by a locking rod, and the inner end of the vent hole is connected to the inner tube of the drive shaft. A limiting groove is also provided on the outer side wall of the drive ring. The limiting groove is a downwardly recessed groove that penetrates the left and right end faces of the drive ring laterally, and the drive ring does not penetrate the inner wall of the drive ring. The anti-slip sleeve is a flexible elastic ring, and an anti-slip sleeve is stably fitted on the outer wall of each drive ring; The outer wall of the anti-slip sleeve has multiple external suction holes, which penetrate the side wall of the anti-slip sleeve. The inner wall of the anti-slip sleeve has a retaining ring protruding inward. The retaining ring is a circular ring and protrudes inward on the inner wall of the anti-slip sleeve. The anti-slip sleeve also has an inwardly protruding locking tenon, which is fitted into the limiting groove. The locking ring is sealed and fitted into the locking groove. The locking ring and the locking groove form an annular closed cavity, and the external suction hole is connected to the annular cavity. The outer end of the vent hole is also connected to the annular cavity. The die-cutting machine is a rotary die-cutting machine. A waste paper box is also provided at the bottom rear side of the die-cutting machine. The waste paper box is a box with an open top and is located below the front side of the conveyor platform. The palletizing platform includes a conveyor platform, palletizing rack, lifting rod, receiving baffle, and paper pressing strip; The conveying platform is a conveyor line erected horizontally at the top, and a side baffle is vertically installed on each of the left and right sides of the conveying platform. A transfer conveyor belt is also provided behind the conveying platform, and a discharge platform is also provided behind the transfer conveyor belt. The front side of the transfer conveyor belt is an inclined conveyor belt, and the transfer conveyor belt is horizontal. The palletizing frame is a vertically installed support. The top of the palletizing frame is locked onto a rotating rod, which is horizontally mounted between two side baffles in the left-right direction. A slapping wheel is also installed on the rear side of the palletizing frame. The slapping wheel is mounted on a motor drive shaft, and the drive shaft of the slapping wheel is horizontally installed between two side baffles in the left-right direction. A pallet is also vertically installed on the rear side of the palletizing rack. The pallet is a flat plate and is vertically installed in the left-right direction. The pallet is located directly above the rear end of the conveying platform. There are three palletizing racks, which are evenly spaced and mounted on the same rotating rod. The rear side of the pallet holder on each palletizing rack is on the same plane. The lifting rod is a vertically installed telescopic rod. A paper lifting rod is horizontally installed at the lower telescopic end of the lifting rod. The lifting rod is driven to rise and fall by the paper lifting rod. The lifting rod is vertically installed directly above the transfer conveyor belt. A pusher cylinder is also horizontally fixedly installed directly above the conveyor platform. The telescopic end of the pusher cylinder is fixedly connected to the upper end of the lifting rod. The lifting rod is driven to move horizontally back and forth by the pusher cylinder. There are two lifting rods, one of which is vertically installed between every two stacking racks, and the two lifting rods are symmetrically arranged left and right. The receiving baffle is a vertically arranged flat plate. The top of the receiving baffle is connected to a limiting rotating plate via a rotating shaft. The limiting rotating plate is also connected to a discharging cylinder. The limiting rotating plate is driven by the discharging cylinder to flip backward and fall down or push forward and stand upright. The receiving baffle and the limiting turn plate are connected to the top rear of the transfer conveyor belt; When the limiting rotating plate is pushed upright, it forms a complete flat plate with the receiving baffle. When the limiting rotating plate flips backward and falls over, the top of the limiting rotating plate is above the front end of the discharge platform, and in this state the height of the limiting rotating plate is level with the height of the discharge platform. The paper pressing strip is a long spring steel strip. The upper end of the paper pressing strip is fixed above the transfer conveyor belt. A return pressure rod is also provided on the rear side of the paper pressing strip. The return pressure rod is horizontally blocked on the rear side of the paper pressing strip in the left and right direction.

[0010] The beneficial effects of this invention are: 1. This invention adds a negative pressure conveying platform. By adding a stainless steel drive ring, which is rigidly connected to the drive shaft and locked by the thread of the locking rod, the entire drive ring is accurately positioned and easy to install. Since the drive ring relies on the rotation of the drive shaft to transmit force, and the drive shaft and drive ring have an interference fit, the power transmission between the drive ring and drive shaft is also transmitted through the locking rod, which has a cross-shaped connection, forming a transmission rod effect. The threaded lock prevents radial slippage; and an external anti-slip sleeve is also included. The anti-slip sleeve supports the cardboard and provides excellent anti-slip effect, offering a stable conveying platform for the cardboard. The negative pressure inside the drive shaft is transmitted to the anti-slip sleeve and drive ring through the vent holes. Then, through the air guide holes and external suction holes of the anti-slip sleeve, the negative pressure is transmitted to the corrugated cardboard on top of the anti-slip sleeve, thus facilitating the stable backward conveying of the cardboard. Even when the cardboard is conveyed along the cross-grain direction, the rear end is continuously attracted by the negative pressure, preventing the cardboard from curling upward due to resistance during backward conveying. This allows the cardboard to be continuously and stably adhered to the top of the base and continuously conveyed backward.

[0011] 2. The inclined conveyor belt guides the cardboard in front backward, providing not only resistance but also changing the direction of the incoming cardboard. This causes the cardboard to fly downward and backward toward the receiving baffle and the limiting turntable, effectively intercepting it. Furthermore, the cardboard above provides constraint, preventing newly added cardboard from bending and forcing it to be stopped and laid flat. The stacking frame bounces backward continuously under the action of the slapping wheel, and the high-frequency slapping of the slapping plate pushes the rising cardboard stack forward against the receiving baffle and the limiting turntable, thus tidying up the cardboard and ensuring that the rising cardboard always remains neat.

[0012] 3. This invention integrates conveying, palletizing, stacking, deceleration and lifting into the same production line. The structure is simple and compact, and the multiple functions work together to form a complete cardboard conveying line, which can quickly and efficiently palletize cardboard neatly and then convey and package it. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a top view of the overall production line of the present invention; Figure 2 This is a schematic diagram of the external structure of the base of the present invention; Figure 3 This is a schematic diagram of the assembly state of two drive rings on a drive shaft according to the present invention; Figure 4 This is a schematic diagram of the anti-slip sleeve structure of the present invention; Figure 5 This is a schematic diagram of the driving ring structure of the present invention; Figure 6 This is a schematic diagram of the locking rod structure of the present invention; Figure 7 This is a schematic diagram of the outer end face structure of the locking rod of the present invention; Figure 8 This is a side view of the drive ring and anti-slip sleeve in their assembled state according to the present invention; Figure 9 This is a side view of the overall device structure of the present invention; Figure 10 This is a schematic diagram of the paper pressing strip of the present invention in a backward bending state; Figure 11 This is a top view of the overall structure of the present invention; Figure 12 This is a schematic diagram of the receiving baffle and limiting rotating plate structure of the present invention.

[0015] The attached diagram lists the components represented by each number as follows: 1-Conveying base, 11-Leaving hole, 12-Drive ring, 121-Positioning groove, 122-Locking hole, 123-Limiting groove, 124-Expansion joint, 13-Anti-slip sleeve, 131-External suction hole, 132-Positioning tenon, 133-Air guide hole, 134-Snap ring, 14-Drive shaft, 141-Negative pressure hole, 142-Pipe hole, 15-Locking rod, 151-Ventilation hole, 152-Counterhead hole; 2-Conveying platform, 211-Transfer conveyor belt, 212-Discharge platform, 213-Side baffle, 214-Inclined conveyor belt, 22-Stacking frame, 221-Supporting plate, 222-Rotating rod, 223-Supporting wheel, 23-Lifting rod, 231-Paper lifting rod, 232-Pushing cylinder, 24-Receiving baffle, 241-Limiting rotating plate, 242-Discharge cylinder, 25-Paper pressing strip, 251-Returning pressing rod; 3-Die-cutting machine, 31-Waste cardboard box. Detailed Implementation

[0016] Please see Figures 1 to 12 As shown, the present invention provides a cutting and stacking production line for cross-grain conveying corrugated cardboard. To better understand the above technical solution, the following will describe the above technical solution in detail with reference to the accompanying drawings and specific embodiments.

[0017] In a specific embodiment of the technical solution of the present invention: It includes a negative pressure conveyor platform, a die-cutting machine 3, and a palletizing platform; the negative pressure conveyor platform, the die-cutting machine 3, and the palletizing platform are arranged sequentially from front to back; The die-cutting machine 3 is a rotary die-cutting machine. This device is a conventional equipment for carton processing. A waste paper box 31 is also set at the bottom rear side of the die-cutting machine 3. The waste paper box 31 is a box with an open top and is set at the lower front side of the conveyor platform 2. Die-cutting machine 3 connects the negative pressure conveyor platform and the palletizing platform, and cuts cardboard into boxes. After the cardboard is cut, it needs to be stacked and palletized, and then subsequent production processes are selected according to the design of the carton.

[0018] The negative pressure conveying platform includes a conveying base 1, a drive ring 12, an anti-slip sleeve 13, a drive shaft 14, and a locking rod 15; The conveying base 1 is a frame base with a flat top. Multiple clearance holes 11 are opened on the top platform of the conveying base 1. Each clearance hole 11 is connected to the interior of the conveying base 1. The multiple clearance holes 11 on the top of the conveying base 1 are distributed in a rectangular array, and each clearance hole 11 is a rectangular hole. Each clearance hole 11 is equipped with a drive ring 12, and an anti-slip sleeve 13 extends above the conveyor base 1.

[0019] The spacing of the drive rings 12 needs to match the position of the clearance holes 11. The number of drive rings 12 can be different. One drive ring 12 can be installed every other clearance hole 11, or one drive ring 12 can be installed in each clearance hole 11. Drive ring 12 is a stainless steel ring. An expansion joint 124 is formed on the outer wall of the drive ring 12, cutting off one side of the drive ring 12 and making the drive ring 12 a disjointed ring. The expansion joint 124 itself remains closed, but because the drive ring 12 is made of stainless steel, it has a certain tension. When the drive ring 12 is installed on the drive shaft 14, a lever can be inserted into the locking holes 122 on both sides of the expansion joint 124 to force open the expansion joint 124, thereby deforming and opening the inner hole of the drive ring 12, so that it can be easily installed on the drive shaft 14. After installation, the drive ring 12 is released, and its rigidity will clamp itself, making the drive ring... Drive ring 12 and drive shaft 14 form an interference fit. The surface of drive shaft 14 also needs to be covered with an anti-slip pad to achieve the effects of anti-slip and sealing. During assembly, it is necessary to ensure that locking hole 122 and negative pressure hole 141 are aligned, and then locking rod 15 can be locked in. The locking rod 15 can lock drive ring 12 and drive shaft 14 to prevent radial sliding between them. Locking rod 15 does not need to bear the compressive force, but rather the locking rod 15 itself bears the sliding force caused by the rotation of drive ring 12. It only needs to block the radial and axial sliding forces formed when the friction is insufficient, thereby ensuring stable transmission between drive ring 12 and drive shaft 14. The expansion joint 124 is set in one of the limiting grooves 123 in the left and right direction, and the radial gap width of the expansion joint 124 does not exceed 3mm. The drive shaft 14 is a hollow round tube with a hollow channel inside, which is a tube hole 142. Multiple drive shafts 14 are horizontally arranged in the left and right direction inside the conveying base 1. Each drive shaft 14 is arranged parallel to each other at the same horizontal height. The drive shaft 14 is connected to an external motor for driving. The inner hole of the drive shaft 14 is connected to a negative pressure pipe through a rotary joint. Multiple negative pressure holes 141 are also opened on the outer wall of the drive shaft 14, and each negative pressure hole 141 penetrates the tube wall of the drive shaft 14. Each drive shaft 14 is vertically fitted with multiple drive rings 12, which are evenly spaced.

[0020] Furthermore, sealing rings need to be added to both sides of the drive ring 12 and drive shaft 14 to improve the sealing effect and ensure that there is no significant air leakage. Each drive ring 12 is a metal ring. Multiple drive rings 12 on the same drive shaft 14 are arranged in parallel to each other, and each drive ring 12 on the same drive shaft 14 is coaxial. The top of each drive ring 12 extends through the clearance hole 11 above the delivery base 1; A locking groove 121 is also provided on the annular outer wall of the drive ring 12. The locking groove 121 is recessed and arranged in a ring on the outer wall of the drive ring 12. The locking groove 121 is coaxial with the drive ring 12. The locking groove 121 is an annular channel connected end to end. The left and right sides of the locking groove 121 are closed, and the locking groove 121 is arranged in a ring on the central section of the drive ring 12. The left and right sides of the locking groove 121 are blocked by the two end faces of the drive ring 12. Multiple locking holes 122 are also provided in the locking groove 121. The locking holes 122 penetrate the side wall of the drive ring 12. A vent hole 151 is opened on the axis of the locking rod 15, and the vent hole 151 penetrates both ends of the locking rod 15. Each locking hole 122 and a negative pressure hole 141 are locked by a locking rod 15. The locking hole 122 and the negative pressure hole 141 are threaded holes, and the locking rod 15 is a threaded rod. The locking hole 122 and the negative pressure hole 141 are locked to the locking rod 15 by bolt insertion. When locking the locking rod 15, anaerobic thread-locking glue needs to be filled into its mating gap to lock it. It can also be disassembled with alcohol, which facilitates the disassembly and assembly of the locking rod 15. The inner end of the vent hole 151 is connected to the inner tube of the drive shaft 14. The outer end of the fixed rod 5 is embedded inside the locking hole 122, that is, the locking rod 15 does not extend above the bottom of the locking groove 121; The outer end of the locking lever 15 is also provided with a countersunk hole 152, and the countersunk hole 152 is an internal hexagonal hole. The internal hexagonal countersunk hole 152 can be used as a knob to apply force to the locking lever 15 without affecting the external shape of the locking lever 15, so as to make it stable to be locked on the drive shaft 14 and the drive ring 12.

[0021] A limiting groove 123 is also provided on the outer side wall of the drive ring 12. The limiting groove 123 is a downward recessed groove, and the limiting groove 123 penetrates the left and right end faces of the drive ring 12 laterally, while the drive ring 12 does not penetrate the inner wall of the drive ring 12. The anti-slip sleeve 13 is a flexible elastic ring. Each drive ring 12 has an anti-slip sleeve 13 stably fitted on its outer wall. The outer wall of the anti-slip sleeve 13 is provided with frosted anti-slip texture. The anti-slip sleeve 13 is a complete elastic rubber ring formed in one piece. Multiple external suction holes 131 are opened on the outer wall of the anti-slip sleeve 13, and the external suction holes 131 penetrate the side wall of the anti-slip sleeve 13. A retaining ring 134 protrudes inward from the inner wall of the anti-slip sleeve 13. The retaining ring 134 is a circular ring and protrudes inward from the inner wall of the anti-slip sleeve 13. The protrusion height of the retaining ring 134 is less than the depth of the retaining groove 121, and the difference is no more than 5mm. For example, if the interval between the retaining ring 134 and the retaining groove 121 is 3mm, the height of the annular closed cavity formed by the retaining ring 134 and the retaining groove 121 is also 3mm. The retaining ring 134 and the locking groove 121 are in a transition fit with a small gap, which makes the assembly of the two smoother and more stable, ensuring stable installation and good sealing. This also makes the drive ring 12 and the anti-slip sleeve 13 axially locked, preventing axial sliding. The height of the inward protrusion of the retaining ring 134 is lower than the height of the locking tenon 132, ensuring that it is firmly locked in both the axial and radial directions. This allows the rubber anti-slip sleeve 13 to be firmly locked with the drive ring 12, thus ensuring stable synchronous transmission. This also prevents the drive ring 12 from wearing out. After wear, only the anti-slip sleeve 13 needs to be replaced. Moreover, the anti-slip sleeve 13 has higher friction, thus effectively conveying smooth corrugated paper.

[0022] The locking groove 121 forms a groove-shaped groove on the outer wall of the drive ring 12 with the outer wall opening closed on both sides, and the retaining ring 134 can be stably locked in it to form a stable locking position, preventing the anti-slip sleeve 13 from sliding axially during transmission. After the locking groove 121 and the retaining ring 134 are assembled, the entire anti-slip sleeve 13 cannot move along the axis of the drive shaft 14, and both ends are blocked.

[0023] The anti-slip sleeve 13 also has an inwardly protruding locking tenon 132, which is fitted into the limiting groove 123. The retaining ring 134 is sealed and fitted into the locking groove 121. The retaining ring 134 and the locking groove 121 form an annular closed cavity, and the external suction hole 131 communicates with this annular cavity. The outer end of the vent hole 151 also communicates with this annular cavity. The external suction hole 131 is an elongated hole arranged in the left-right direction, and the front-back width of the external suction hole 131 is 1-2mm. Two air guide holes 133 are also provided on the inner wall of each retaining ring 134, and the two air guide holes 133 are symmetrically arranged on both sides of the drive shaft 14. Each external suction hole 131 is connected to a guide hole 133. The number of external suction holes 131 is the same as the number of guide holes 133, and their positions correspond one-to-one. The air guide hole 133 can be a small square hole, and the opening of the air guide hole 133 is located in the annular cavity formed by the retaining ring 134 and the retaining groove 121.

[0024] The external suction hole 131 and the air guide hole 133 form a complete channel, except that the outer end is elongated and the inner end is a square opening, forming a twisted channel. This is designed to adapt to the internal negative pressure and the external adsorption effect. The external suction hole 131 is an elongated hole used to adsorb cardboard, and the inner end is a square air guide hole 133 used to provide a larger channel and form a larger negative pressure.

[0025] The opening of the external suction hole 131 in the retaining ring 134 is the air guide hole 133. The two are the same hole for transmitting negative pressure. The air guide hole 133 is located inside the groove of the retaining groove 121 and is connected to the negative pressure cavity.

[0026] Multiple limiting grooves 123 are opened on the outer wall of the drive ring 12. Each limiting groove 123 is evenly spaced and there can be four limiting grooves 123. Therefore, the locking tenons 132 must also be spaced at the same distance and there must also be four of them. Each limiting groove 123 is mortised and tenoned with a locking tenon 132. The locking tenon 132 is a teardrop-shaped protrusion that is wider at the inner end and narrower at the outer end. The limiting groove 123 has the same shape as the locking tenon 132. The inner ring of the anti-slip sleeve 13 has multiple locking tenons 132 protruding evenly spaced. Each locking tenon 132 is fitted into a limiting groove 123 in a corresponding manner. This forms a mortise and tenon structure to prevent the anti-slip sleeve 13 from locking the drive ring 12 in the direction of rotation, so that it does not slip radially.

[0027] The locking tenon 132 and the limiting groove 123 are in clearance fit, with a clearance not exceeding 0.2mm. This prevents the anti-slip sleeve 13 from rotating radially with the drive ring 12. The drive ring 12 and the anti-slip sleeve 13 are locked together by four locking tenons 132. During assembly, apply lubricant to the inner wall of the anti-slip sleeve 13, which can be water or a viscous lubricant. The anti-slip sleeve 13 is made of rubber and has a certain degree of elasticity. Pull the anti-slip sleeve 13 open so that it flips over and fastens onto the drive ring 12. Then assemble the anti-slip sleeve 13 onto the drive ring 12 and blow dry the lubricant. At this time, the anti-slip sleeve 13 and the drive ring 12 still have a certain degree of adhesion, making the assembly more secure.

[0028] In the negative pressure conveyor platform, cardboard is adsorbed using negative pressure, regardless of whether it's along the grain or the lines. The cardboard is consistently held in place on the conveyor base 1, ensuring stable and convenient transport. This solves the problem of curling during cross-grain transport, preventing insufficient transverse strength and subsequent curling due to rear-end compression during deceleration. During transport, every part of the cardboard is firmly adsorbed onto the conveyor base 1 by uniform negative pressure. The anti-slip sleeve 13 provides superior friction and cushioning, facilitating positioning and cutting. After cutting, no stopping is required before continued transport. The cardboard is then directly cut by the die-cutting machine 3. Since the carton itself is transported along the grain, no turning is needed during cutting, achieving stable adsorption and positioning while transporting the cardboard along the grain. This device also addresses the problem of upward curling during transverse transport of corrugated cardboard. It continuously transports the corrugated cardboard backward, maintaining a downward adsorption state at the rear end of the cardboard throughout this process.

[0029] Through the external suction holes 131 on the front anti-slip sleeve 13, the cardboard moving backward is continuously suctioned downward onto the conveying base 1, thus stabilizing the cardboard while simultaneously being continuously conveyed backward by the rotation of the drive ring 12. When the drive ring 12 rotates, the cardboard is also suctioned and conveyed backward. After the drive wheel 2 rotates below the base 2, the cardboard loses the suction force of the drive ring 12 and is then suctioned by the rear drive ring 12, continuously suctioned and conveyed backward. Therefore, the angle and orientation of the external suction holes 131 of each drive ring 12 need to be adjusted. That is, when the external suction holes 131 of the front anti-slip sleeve 13 rotate backward to below the clearance hole 11, the rear drive ring 12 rotates so that the external suction holes 131 on the rear anti-slip sleeve 13 are exactly above the clearance hole 11, ensuring that the cardboard is continuously conveyed backward and that the rear drive ring 12 continuously receives the cardboard from the front, so that the rotation of the drive ring 12 forms a linear conveying, thereby keeping the corrugated cardboard stably conveyed backward.

[0030] The negative pressure and drive transmission principle of the negative pressure conveying platform are as follows: Drive force transmission: The motor drives the drive shaft 14, which rotates backward, causing the drive ring 12 to rotate. The drive ring 12 is locked onto the drive shaft 14. Not only is it locked by interference fit, but each drive ring 12 is also inserted through multiple locking rods 15 to form a key, which can transmit torsional force and prevent slippage.

[0031] The drive ring 12 transmits the rotational force to the anti-slip sleeve 13 through the locking tenon 132 and the limiting groove 123. The anti-slip sleeve 13 is directly supported on the bottom of the corrugated cardboard, providing not only support but also a backward conveying force through friction.

[0032] Negative pressure transmission: The negative pressure pipe applies negative pressure to the pipe hole 142 inside the drive shaft 14. The pipe hole 142 applies negative pressure to the vent hole 151 of the locking rod 15 through the negative pressure hole 141, and applies negative pressure between the retaining ring 134 and the locking groove 121. Because the locking groove 121 is blocked by the locking tenon 132, only the vent hole 133 used in the locking groove 121 with the vent hole 133 is effective. For the other locking rods 15 without the vent hole 133, the vent hole cannot form negative pressure transmission. The locking rod 15 here can use a screw without the vent hole 151.

[0033] The vent 151 can apply negative pressure through the external suction hole 131 to the corrugated cardboard supported on the top of the anti-slip sleeve 13, thereby continuously adsorbing and conveying the cardboard backward.

[0034] The palletizing platform includes a conveyor platform 2, a palletizing frame 22, a lifting rod 23, a receiving baffle 24, and a paper pressing strip 25; The conveyor platform 2 is a roller conveyor line that is horizontally erected at the top. The conveyor platform 2 is erected on the frame, and a side baffle 213 is vertically installed on each of the left and right sides of the conveyor platform 2. A transfer conveyor belt 211 is also installed behind the conveyor platform 2, and a discharge platform 212 is also installed behind the transfer conveyor belt 211. An inclined conveyor belt 214 is installed on the front side of the transfer conveyor belt 211, and the transfer conveyor belt 211 is horizontal. The inclined conveyor belt 214 is an inclined conveyor belt, and the inclined conveyor belt 214 and the intermediate conveyor belt 211 form a complete conveyor belt; The upward tilt angle of the inclined conveyor belt 214 is between 40° and 60°, causing the cardboard to continuously rise backward as it is conveyed backward and upward. This creates an inclined conveying method where the cardboard is conveyed backward and upward. The cardboard above blocks the inclined cardboard, and the high-speed cardboard can bend and deform slightly, but it cannot bend or directly impact and stop in the horizontal direction. Instead, it stops by changing direction, decelerating, adsorbing, rubbing, and changing direction again, which greatly reduces the impact force on the carton and eventually flattens it under the already stacked cardboard. Moreover, the high-speed continuous downward replenishment of cardboard and continuous flattening and stopping creates an effective stack.

[0035] When two objects have a high relative speed, the airflow from the outside will compress the two pieces of cardboard together, further increasing the friction and causing the high-speed cardboard to be rapidly reduced in speed. Since the cardboard itself is lightweight, once it tilts, the wind resistance will block and slow it down. When the external airflow compresses the cardboard on the upper and lower sides that are moving at high speed relative to each other, it will greatly reduce its kinetic energy. The cardboard is already very slow before it hits the barrier behind it.

[0036] The palletizing frame 22 is a vertically mounted support. The top of the palletizing frame 22 is locked onto a rotating rod 222. The rotating rod 222 is horizontally mounted between the left and right side baffles 213. The rotating rod 222 is rotatably mounted on the side baffles 213 through bearings, and the bearings of the rotating rod 222 rotate along the horizontal axis. This structure allows the palletizing frame 22 to continuously swing under the action of the rotating rod 222. Furthermore, the palletizing frame 22 and the rotating rod 222 are relatively heavy and are mounted through bearings, so they do not require a drive and can automatically and rapidly rotate downwards to return to their original positions.

[0037] A slapping wheel 223 is also provided on the rear side of the palletizing frame 22. The slapping wheel 223 is mounted on a motor drive shaft, and the drive shaft of the slapping wheel 223 is horizontally installed between two side baffles 213 in the left-right direction. The palletizing frame 22 is a support that bends backward, so that the center of gravity of the palletizing frame 22 is forward. When the palletizing frame 22 is not subjected to external force, the center of gravity of the palletizing frame 22 naturally moves forward, so the palletizing frame 22 naturally generates a downward force. Therefore, the palletizing frame 22 will drive the rotary rod 222 to rotate forward continuously. The rotation of the slapping wheel 223 provides power to the palletizing frame 22. Therefore, a slapping wheel 223 needs to be set in front of the palletizing frame 22. When the clapping wheel 223 rotates at high speed, it will collide with the stacking frame 22 that is constantly falling forward. The clapping wheel 223 pushes the stacking frame 22 backward continuously, so that the supporting plate 221 on the rear side of the stacking frame 22 forms a high-frequency backward clapping action, thereby continuously clapping the stacked cardboard neatly. The advantage of this structure is that it generates a high-frequency backward slapping motion through a simple structure. Without this motion, only a motor-driven cam impact could be used, which is prone to damage and requires a very high motor drive frequency. In this device, the outer ring of the slapping wheel 223 is wrapped with a rubber wheel, which not only prevents damage but also provides cushioning. Furthermore, without direct mechanical impact, a high-frequency driving slapping effect can be achieved, which is not found in other devices. The advantages of this design are low cost, with the easily damaged part being the rubber wheel on the outer ring of the slapping wheel 223. The rubber wheel is easy to replace and has a low cost. The mechanical drive structure is simple, without the hard collision of the cam with other gears. The rotation is directly transformed into a backward linear reciprocating slapping motion. During the slapping process, the supporting plate 221 will rotate upward in an arc along the rotating rod 222, thereby lifting the cardboard upward in conjunction with 14. This allows the cardboard that is subsequently conveyed to be directly placed under the stacked cardboard, and then lifted and carried by the horizontal rear side of the transfer conveyor belt 211.

[0038] A pallet 221 is also vertically installed on the rear side of the pallet rack 22. The pallet 221 is a flat plate and is vertically installed in the left and right direction. The rear side of the pallet 221 is a flat surface and is located directly above the rear end of the conveyor platform 2. There are three palletizing racks 22, which are evenly spaced and installed on the same rotary rod 222. Each palletizing rack 22 has the same installation angle, and the rear side of the support plate 221 on each palletizing rack 22 is on the same plane. The two palletizing racks 22 are arranged symmetrically from left to right, mainly symmetrical with respect to the central axis of the conveyor platform 2, to ensure that the left and right sides of the corrugated cardboard are tapped symmetrically, making the tapping more uniform, with low tapping force but high frequency.

[0039] The lifting rod 23 is a vertically installed telescopic rod. A paper lifting rod 231 is horizontally installed at the lower telescopic end of the lifting rod 23. The lifting rod 23 is driven to maintain a horizontal state of raising and lowering by the paper lifting rod 231. The lifting rod 23 is vertically installed directly above the transfer conveyor belt 211. A pusher cylinder 232 is also horizontally fixedly installed directly above the conveyor platform 2. The telescopic end of the pusher cylinder 232 is horizontally set backward, and the telescopic end of the pusher cylinder 232 is fixedly connected to the upper fixed end of the lifting rod 23. The lifting rod 23 is driven to move horizontally back and forth by the pusher cylinder 232. The lifting rod 23 is a vertically mounted cylinder; There are two lifting rods 23, and therefore two paper lifting rods 231. A lifting rod 23 is set between every two stacking racks 22. The two lifting rods 23 are symmetrically arranged on the left and right sides, so that the stacked cardboard can be lifted by the two paper lifting rods 231 on the left and right sides, and both the left and right paper lifting rods 231 are lifted, so that the stacked cardboard can be lifted stably.

[0040] Ideally, each paper lifting rod 231 should be positioned with a pressure strip 25 pressing it down on the same vertical plane, ensuring that the lifting of the lower paper lifting rod 231 is subjected to force on the same plane as a pressure strip 25, thereby stably pressing and conveying the cardboard.

[0041] The receiving baffle 24 is a vertically arranged flat plate. The top of the receiving baffle 24 is connected to the limiting rotating plate 241 through a rotating shaft. The limiting rotating plate 241 is also connected to the discharging cylinder 242. The limiting rotating plate 241 is driven by the discharging cylinder 242 to flip backward and fall down or push forward and stand upright. The receiving baffle 24 and the limiting rotating plate 241 are connected to the top rear of the transfer conveyor belt 211; When the limiting rotating plate 241 is pushed upright, it forms a complete flat plate with the receiving baffle 24. When the limiting rotating plate 241 flips backward and falls over, the top of the limiting rotating plate 241 is above the front end of the discharge platform 212. The front side of the receiving baffle 24 and the limiting rotating plate 241 in the vertical state is a flat surface. The rear side of the receiving baffle 24 and the limiting rotating plate 241 are also provided with hinges that are connected to each other. The rotation axis of the receiving baffle 24 and the limiting rotating plate 241 is set horizontally in the left and right direction. The upper left and right sides of the limit plate 241 are rotatably connected to the discharge cylinder 242 through hinge brackets; The receiving baffle 24 and the limiting turn plate 241 do not contact the rear end of the transfer conveyor belt 211, and the gap does not exceed 1 cm. Thus, the receiving baffle 24 and the limiting turn plate 241 block the cardboard. The paper pressing strip 25 is a long spring steel strip. The upper end of the paper pressing strip 25 is fixed above the transfer conveyor belt 211. A return pressure rod 251 is also provided on the rear side of the paper pressing strip 25, which horizontally blocks the rear side of the paper pressing strip 25 in the left-right direction. The lowest point of the paper pressing strip 25 in the vertical state is lower than the height of the discharge platform 212, which is a conveyor belt. The upper end of the pressure strip 25 is fixedly connected to the design frame. There are two pressure strips 25. The two pressure strips 25 are at the same height on the same vertical plane, and the two pressure strips 25 are symmetrically arranged on the left and right sides of the center line of the transfer conveyor belt 211. This allows the two sides of the cardboard to be pressed and lifted by the lifting rod 231.

[0042] In the palletizing platform: 1. Corrugated cardboard conveyed by cross-grain conveying has low strength. Under a huge impact, it will bend to some extent but will not bend completely. The gaps between the bent cardboard are large, and it will deform under a high impact. Therefore, corrugated cardboard generally needs to be conveyed by vertical grain. However, if it can be conveyed by cross-grain conveying, the subsequent turning operation can be avoided, turning equipment and processes can be eliminated, and the cutting process can be simplified. This device is particularly suitable for production lines with cross-grain cutting at the front, and can directly convey the cardboard by cross-grain to stack, palletize and pack it.

[0043] 2. For horizontal bending, if a suitable production line is available, this device can pre-decelerate, increase friction, and form an inclined conveying angle. The cardboard is then turned multiple times to offset kinetic energy. First, it is guided upward by the inclined conveyor belt 214, and then turned downward by the pressure of the cardboard above. The cardboard continues to impact the limiting plate 241 forward and then rebounds. The gap between the front support plate 221 and the conveying platform 2 is only one cardboard. The cardboard being conveyed backward has also risen. Therefore, the cardboard that rebounds after impacting the limiting plate 241 will impact the support plate 221 in the opposite direction. Multiple impacts form a rapid energy absorption and braking effect, so that the cardboard is stably stacked on the top of the transfer conveyor belt 211. The transfer conveyor belt 211 continues to slowly convey backward, and then conveys the cardboard that rebounds backward forward again.

[0044] When the palletizing platform is working, the cross-ribbed cardboard that has already been cut in front is directly conveyed backward. The cardboard is conveyed backward at high speed through the conveyor platform 2. The cardboard is conveyed between the conveyor platform 2 and the pallet 221. When the cardboard comes into contact with the inclined conveyor belt 214, it immediately tilts backward and upward, and the cardboard rises. During the rising process, the resistance increases and it hits the cardboard above. The cardboard that has already been stacked above is lifted by the impact. The cardboard above plays an energy absorption role, and the kinetic energy of the newly fed cardboard below drops sharply.

[0045] The impact force of the cardboard below also helps to lift the cardboard above continuously upwards. Finally, the cardboard that is fed in hits the upper limit plate 241 and stops. This braking process is very rapid, taking less than 0.5 seconds.

[0046] The cardboard stacked on top falls back down. Because the individual cardboard pieces below are light and the number of cardboard pieces stacked on top is large, the impact and undulation are very small. The cardboard itself has gaps, which form an effective buffer. The falling cardboard stack presses down the cardboard below again. Subsequent cardboard is added continuously, lifting the stacked cardboard and forming a high-frequency reciprocating undulating motion.

[0047] Simultaneously, the patting wheel 223 continues to rotate, continuously pushing the stacking frame 22 backward. The stacking frame 22 is bounced back by the impact, and the supporting patting plate 221 also rotates backward along the axis of the rotating rod 222, continuously bouncing backward and patting the stacked cardboard with small amplitude. The cardboard in front is continuously patted. Cardboard has both hardness and a certain degree of elasticity. The supporting patting plate 221 is subjected to a reaction force and quickly rebounds, causing the stacking frame 22 to bounce back and impact the patting wheel 223 again. Although the forward rolling force of the patting wheel 223 is fast, the backward pushing force is very small because it has no backward pushing stroke, only rotation. The high-frequency, small-force backward push of the patting wheel 223 creates a high-speed backward bouncing effect on the stacking frame 22, thereby causing the supporting patting plate 221 to continuously and frequently pat the stacked cardboard backward, making the cardboard neatly stuck between the supporting patting plate 221 and the receiving baffle 24, and continuously stacking higher.

[0048] After 5-10 seconds, the cardboard pieces reach 10-15 pieces and form a certain height. At this time, the lifting rod 231 is pushed forward a short distance by the pushing cylinder 232. The lifting rod 231 is stuck at the bottom of the 7 cardboard pieces above. The lifting rod 23 is raised, which also raises the lifting rod 231. The lifting rod 231 lifts the cardboard above, and the top is pressed by the pressing strip 25, so that the cardboard is raised smoothly under the lifting force of the lifting rod 231. At this time, the discharge cylinder 242 retracts backward, and the limit plate 241 flips backward and lies flat with the discharge platform 212.

[0049] The pusher cylinder 232 pushes backward again, pushing the 7 cardboards raised by the paper lifting rod 231 backward. The cardboards slide past the backward tilting limit plate 241 and are received by the discharge platform 212.

[0050] After the push is completed, the push cylinder 232 first resets forward and retracts in front of the support plate 221, while the lifting rod 23 also lowers to the set height position. At this time, the paper lifting rod 231 is in front of the support plate 221 and is also at the height position of the bottom of the limit plate 241. Each time, 7-10 cardboards are lifted.

[0051] Because the conveyor belt of the discharge platform 212 can be stopped and run at low speed only once every certain period of time, it can meet the needs of packaging and conveying the cardboard again, forming a cardboard stacking braking conveyor line, and meeting the needs of other subsequent production processes of cardboard. This device saves space, has a simple structure, and is stable in use. It utilizes the state of the cardboard stacking above to complete the friction and braking of the cardboard, so that the high-speed and low-speed cardboard cooperate with each other to buffer and change direction, thus achieving the purpose of stacking.

[0052] The front-back direction referred to in this device refers to the conveying direction of the corrugated cardboard. The end with the raw material is the front end, and the direction from which the finished product is conveyed is the rear end. The left-right direction refers to the left and right sides of the cardboard conveyor. The indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0053] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A cutting and stacking production line for cross-ribbed corrugated cardboard, characterized in that, include: The negative pressure conveying platform, the die-cutting machine (3), and the palletizing platform are arranged sequentially from front to back. The negative pressure conveying platform includes a conveying base (1), a drive ring (12), an anti-slip sleeve (13), a drive shaft (14), and a locking rod (15). The conveying base (1) is a frame base with a flat top. Multiple clearance holes (11) are opened on the top platform of the conveying base (1), and each clearance hole (11) is connected to the interior of the conveying base (1). The multiple clearance holes (11) on the top of the conveying base (1) are arranged in a rectangular array, and each of the clearance holes (11) is a rectangular hole; The drive shaft (14) is a hollow round tube. Multiple drive shafts (14) are horizontally arranged in the left and right direction inside the conveying base (1). Each drive shaft (14) is arranged parallel to each other at the same horizontal height. The drive shaft (14) is connected to an external motor for driving. The inner hole of the drive shaft (14) is connected to a negative pressure pipe through a rotary joint. Multiple negative pressure holes (141) are also provided on the outer wall of the drive shaft (14), and each negative pressure hole (141) penetrates the tube wall of the drive shaft (14); Multiple drive rings (12) are vertically fitted and locked onto each of the drive shafts (14). Each of the drive rings (12) is a metal ring, and multiple drive rings (12) on the same drive shaft (14) are arranged parallel to each other, and each drive ring (12) on the same drive shaft (14) is coaxial; A drive ring (12) is provided in each of the relief holes (11), and the top of each drive ring (12) extends through the relief hole (11) and above the conveying base (1); A locking groove (121) is also provided on the annular outer wall of the drive ring (12). The locking groove (121) is recessed downward and is provided on the outer wall of the drive ring (12). The locking groove (121) is coaxial with the drive ring (12). The locking groove (121) is an annular channel with the ends connected. The left and right sides of the locking groove (121) are closed. Multiple locking holes (122) are also provided in the locking groove (121). The locking holes (122) penetrate the side wall of the drive ring (12). A vent hole (151) is opened on the axis of the locking rod (15). The vent hole (151) penetrates both ends of the locking rod (15). Each locking hole (122) and a negative pressure hole (141) are locked by a locking rod (15). The inner end of the vent hole (151) is connected to the inner tube of the drive shaft (14). A limiting groove (123) is also provided on the outer side wall of the drive ring (12). The limiting groove (123) is a downward recessed groove, and the limiting groove (123) penetrates the left and right end faces of the drive ring (12) laterally, and the drive ring (12) does not penetrate the inner wall of the drive ring (12). The anti-slip sleeve (13) is a flexible elastic ring, and an anti-slip sleeve (13) is stably fitted on the outer wall of each drive ring (12). The outer wall of the anti-slip sleeve (13) is provided with a plurality of external suction holes (131). The external suction holes (131) penetrate the side wall of the anti-slip sleeve (13). The opening of the external suction hole (131) in the retaining ring (134) is a vent hole (133). The vent hole (133) is located inside the groove of the retaining groove (121). The inner wall of the anti-slip sleeve (13) is provided with a retaining ring (134) protruding inward. The retaining ring (134) is a circular ring and protrudes inward on the inner wall of the anti-slip sleeve (13). The anti-slip sleeve (13) also has a locking tenon (132) protruding inward inside. The locking tenon (132) is fitted into the limiting groove (123). The retaining ring (134) is sealed and fitted into the locking groove (121). The retaining ring (134) and the locking groove (121) form an annular cavity. Furthermore, the external suction hole (131) is connected to the annular cavity through the air guide hole (133), and the outer end of the air vent (151) is also connected to the annular cavity. The inner cavity of the drive shaft (14) and the annular cavity are connected through the air vent (151). The die-cutting machine (3) is a rotary die-cutting machine. A waste paper box (31) is also provided at the bottom rear side of the die-cutting machine (3). The waste paper box (31) is a box with an open top. The waste paper box (31) is located below the front side of the conveying platform (2). The palletizing platform includes a conveyor platform (2), a palletizing rack (22), a lifting rod (23), a receiving baffle (24), and a paper pressing strip (25). The conveying platform (2) is a conveying line erected horizontally at the top, and a side baffle (213) is vertically installed on each of the left and right sides of the conveying platform (2). A transfer conveyor belt (211) is also provided behind the conveying platform (2), and the transfer conveyor belt (211) is horizontal; a discharge platform (212) is also provided behind the transfer conveyor belt (211), and an inclined conveyor belt (214) is provided on the front side of the transfer conveyor belt (211). The inclined conveyor belt (214) is an inclined conveyor belt, and the inclined conveyor belt (214) and the transfer conveyor belt (211) form a complete conveyor belt; The palletizing frame (22) is a vertically installed support. The top of the palletizing frame (22) is locked onto a rotating rod (222). The rotating rod (222) is horizontally mounted between two side baffles (213) in the left-right direction. A tack wheel (223) is also provided on the rear side of the palletizing frame (22). The tack wheel (223) is mounted on a motor drive shaft, and the drive shaft of the tack wheel (223) is horizontally installed between two side baffles (213) in the left-right direction. A pallet (221) is also vertically installed on the rear side of the pallet rack (22). The pallet (221) is a flat plate and is vertically installed in the left and right direction. The pallet (221) is located directly above the rear end of the conveying platform (2). There are three palletizing racks (22), which are evenly spaced and installed on the same rotary rod (222). The rear side of the support plate (221) on each palletizing rack (22) is on the same plane. The lifting rod (23) is a vertically installed telescopic rod. A paper lifting rod (231) is horizontally installed at the lower telescopic end of the lifting rod (23). The lifting rod (23) is driven to rise and fall by the paper lifting rod (231). The lifting rod (23) is vertically installed directly above the transfer conveyor belt (211). A pusher cylinder (232) is also horizontally fixedly installed directly above the conveyor platform (2). The telescopic end of the pusher cylinder (232) is fixedly connected to the upper end of the lifting rod (23). The lifting rod (23) is driven to move horizontally back and forth by the pusher cylinder (232). There are two lifting rods (23), and one lifting rod (23) is vertically arranged between every two stacking racks (22). The two lifting rods (23) are arranged symmetrically on the left and right. The receiving baffle (24) is a vertically arranged flat plate. The top of the receiving baffle (24) is connected to a limiting rotating plate (241) via a rotating shaft. The limiting rotating plate (241) is also connected to a discharge cylinder (242). The limiting rotating plate (241) is driven by the discharge cylinder (242) to flip backward and fall down or push forward and stand upright. The receiving baffle (24) and the limiting rotating plate (241) are connected to the rear top of the transfer conveyor belt (211); When the limiting rotating plate (241) is pushed upright, it forms a complete flat plate with the receiving baffle (24); When the limiting rotating plate (241) flips backward and falls down, the top of the limiting rotating plate (241) is above the front end of the discharge platform (212), and in this state the height of the limiting rotating plate (241) is flush with the height of the discharge platform (212). The paper pressing strip (25) is a long spring steel strip. The upper end of the paper pressing strip (25) is fixed above the transfer conveyor belt (211). A return pressure rod (251) is also provided on the rear side of the paper pressing strip (25). The return pressure rod (251) is horizontally blocked on the rear side of the paper pressing strip (25) in the left and right direction.

2. The cutting and stacking production line for cross-grain conveying corrugated cardboard according to claim 1, characterized in that: The drive ring (12) is a stainless steel ring, and the outer wall of the anti-slip sleeve (13) is provided with frosted anti-slip texture. The anti-slip sleeve (13) is a complete elastic rubber ring. An expansion joint (124) is formed on the outer wall of the drive ring (12), and the expansion joint (124) cuts off one side of the drive ring (12). The multiple drive rings (12) on the same drive shaft (14) are evenly spaced; The outer wall of the drive ring (12) has a plurality of limiting grooves (123), and each limiting groove (123) is evenly spaced. The expansion joint (124) is set in one of the limiting grooves (123) in the left-right direction, and the radial gap width d of the expansion joint (124) does not exceed 3mm; The locking tenon (132) is a teardrop-shaped protrusion with a wide inner end and a narrow outer end. The limiting groove (123) has the same shape as the locking tenon (132). The inner ring of the anti-slip sleeve (13) is evenly spaced with multiple locking tenons (132). Each locking tenon (132) is fitted into a limiting groove (123) in a corresponding manner. The locking tenon (132) and the limiting groove (123) are in clearance fit, with a clearance not exceeding 0.2mm.

3. The cutting and stacking production line for cross-ribbed corrugated cardboard according to claim 1, characterized in that: The outer end of the locking rod (15) is embedded inside the locking hole (122); The outer end of the locking rod (15) is also provided with a countersunk hole (152), and the countersunk hole (152) is an internal hexagonal hole.

4. The cutting and stacking production line for cross-grain conveying corrugated cardboard according to claim 2, characterized in that: The protrusion height of the retaining ring (134) is less than the depth of the retaining groove (121); The retaining ring (134) and the retaining groove (121) are in transition fit.

5. The cutting and stacking production line for cross-ribbed corrugated cardboard according to claim 1, characterized in that: The external suction hole (131) is an elongated hole arranged in the left-right direction, and the width of the external suction hole (131) in the front-back direction is 1-2mm; Each of the retaining rings (134) has two air guide holes (133) on its inner wall. The two air guide holes (133) are symmetrically arranged on both sides of the drive shaft (14), and the inner end of the air guide hole (133) is directly opposite the locking hole (122). The air guide hole (133) is a square hole.

6. The cutting and stacking production line for cross-ribbed corrugated cardboard according to claim 1, characterized in that: The rotary rod (222) is rotatably mounted on the side baffle (213) via a bearing, and the bearing of the rotary rod (222) rotates along the horizontal axis; Each of the palletizing racks (22) has the same installation angle, and the two palletizing racks (22) are arranged symmetrically on the left and right.

7. The cutting and stacking production line for cross-grain conveying corrugated cardboard according to claim 1, characterized in that: The lowest point of the vertically positioned paper pressing strip (25) is below the height of the discharge platform (212), which is a conveyor belt; The upper end of the paper pressing strip (25) is fixedly connected to the design frame. There are two paper pressing strips (25). The two paper pressing strips (25) are at the same height on the same vertical plane, and the two paper pressing strips (25) are symmetrically arranged on the left and right sides of the center line of the transfer conveyor belt (211).

8. The cutting and stacking production line for cross-grain conveying corrugated cardboard according to claim 1, characterized in that: The upward tilt angle of the inclined belt (214) ranges from 40° to 60°.

9. The cutting and stacking production line for cross-grain conveying corrugated cardboard according to claim 1, characterized in that: The front side of the receiving baffle (24) and the limiting rotating plate (241) in the vertical state is a flat surface. The rear side of the receiving baffle (24) and the limiting rotating plate (241) is also provided with hinges that are connected to each other. The rotation axis of the receiving baffle (24) and the limiting rotating plate (241) is set horizontally in the left and right direction. The upper left and right sides of the limiting rotating plate (241) are rotatably connected to the feeding cylinder (242) through hinge supports; The receiving baffle (24) and the limiting turn plate (241) do not contact the rear end of the transfer conveyor belt (211), and the gap does not exceed 1cm.

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