Carton stacking and collating device and carton collating and packing apparatus

Abstract

The utility model relates to carton stacking device technical field, the utility model provides a kind of carton stacking arrangement and carton arrangement packing equipment, it includes rack, two groups of alignment component being symmetrically arranged on rack, lifting position-limiting seat being lifted and being arranged on rack and push plate being slidably arranged on rack, two groups of alignment component form the arrangement space containing carton, alignment component is composed of fixed plate and side baffle, side baffle can slide along the direction close to or away from another group of alignment component, telescopic rod is installed on fixed plate, the piston rod body of telescopic rod can penetrate side baffle and extend into arrangement space.Push plate pushes and stack carton when telescopic rod can support the carton to be entered, without waiting for push plate reset, the early reception of the carton to be stacked can be realized, make carton conveying lower and stack arrangement continuous link, eliminate intermittent operation, improve overall operation efficiency, satisfy the production demand of continuous, high rhythm under high-speed production scene.

Description

Technical Field

[0001] This utility model relates to the technical field of cardboard box stacking devices, specifically, to a cardboard box stacking and sorting device and a cardboard box sorting and packaging equipment. Background Technology

[0002] In logistics, transportation, and product packaging, cardboard boxes are commonly used packaging containers. Before production, storage, and transportation, they typically need to be stacked to reduce space occupation and facilitate subsequent handling and transportation. To improve the efficiency of stacking, existing technologies often employ automated devices to stack cardboard boxes, ensuring neat stacking. Once a set number of boxes has been stacked, a pushing structure moves the stacked boxes from the stacking area to a designated location.

[0003] However, existing carton stacking and sorting devices have certain limitations in practical use: when the pushing structure pushes the stacked cartons out of the stacking area, the stacking area is occupied by the pushing action. At this time, cartons waiting to enter the stacking area on the conveyor line cannot continue to be lowered into the stacking area. If forced to lower them, they are prone to interference with the stacked cartons or the pushing structure, resulting in cartons being skewed, damaged, or the pushing action being obstructed. Therefore, cartons waiting to be stacked must wait for the pushing structure to reset and the stacking area to be completely empty before they can continue to be lowered, making the entire stacking and sorting process intermittent. This intermittent operation makes it impossible to continuously connect the conveying and lowering of cartons with the stacking and sorting, which not only reduces the overall operating efficiency, but also makes it difficult to meet the continuous and high-speed production requirements, especially in high-speed production scenarios, thus restricting the overall capacity improvement of the production line. Furthermore, the current sorting and packing devices occupy a large area.

[0004] Therefore, there is an urgent need for a sorting device that can continuously transport and lower cartons for stacking, thus solving the problem of low efficiency caused by intermittent operation in the existing technology. Utility Model Content

[0005] To overcome the above-mentioned defects, embodiments of this utility model provide a carton stacking and sorting device and a carton sorting and packaging equipment, which solves the technical problem of low efficiency caused by intermittent operation when stacking cartons in the prior art.

[0006] According to one aspect, at least one embodiment of the present invention provides a carton stacking and sorting device, comprising: frame; The alignment assembly comprises two sets, which are symmetrically arranged on the frame and form a sorting space for accommodating cartons. The alignment assembly is used to align the sides of stacked cartons. Each alignment assembly includes a fixing plate and a side baffle. The fixing plate is disposed on the frame, and the side baffle is slidably disposed on the frame in a direction close to or away from the other set of alignment assemblies. A telescopic rod is provided on the fixing plate, and the piston rod of the telescopic rod can pass through the side baffle and extend into the sorting space. A lifting limit seat is lifted and mounted on the frame to limit one end of the carton. A push plate is slidably disposed on the frame. The push plate is used to push the other end of the carton to align the stacked cartons with the lifting limit seat, and can push the stacked cartons out of the sorting space when the lifting limit seat moves down. When the pusher pushes the stacked cartons out of the sorting space, the piston rod of the telescopic rod can extend into the sorting space to support the cartons to be entered above and avoid the pushing action of the pusher; when the pusher resets, the piston rod of the telescopic rod retracts to release the supported cartons into the sorting space.

[0007] Optionally, the frame is provided with two sets of symmetrically arranged conveyor rollers, and a circulating drive component for driving the push plate to reciprocate is provided between the two sets of conveyor rollers. The circulating drive component includes: The mounting plate has two, and the two mounting plates are symmetrically arranged on the frame. Each set of conveyor rollers is arranged between one of the mounting plates and the side wall of the frame. A conveyor chain is cyclically arranged between the two mounting plates, and a pusher plate is disposed on the conveyor chain, which can drive the pusher plate to reciprocate.

[0008] Optionally, the lifting limit seat includes: A baffle for aligning the other end of the carton; A lifting component is mounted on the mounting plate, and a baffle is mounted on the movable end of the lifting component. When the pusher pushes out the stacked cartons, the baffle descends to avoid the pushing action of the pusher.

[0009] Optionally, the alignment component further includes: The mounting base is disposed on the frame, and the fixing plate is disposed on the mounting base; A driver is disposed on the mounting base, and the output end of the driver passes through the mounting base and the fixing plate and is connected to the side baffle. The driver is used to drive the side baffle to slide back and forth in a direction that is close to or away from the other side baffle.

[0010] Optionally, the frame is provided with an adjustment component for adjusting the distance between the two alignment components, the adjustment component comprising: A support slide rod is mounted on the frame. Both the fixed plate and the side baffle have through holes. The support slide rod passes through the through holes and is slidably connected to the fixed plate and the side baffle. A lead screw is rotatably mounted on the frame and arranged parallel to the support slide rod. A lead screw nut is provided on the fixed plate and the side baffle, and the lead screw is threadedly connected to the lead screw nut.

[0011] Optionally, the mounting base is provided with a clearance groove for avoiding the conveyor rollers.

[0012] Optionally, the telescopic rod is set at a height higher than the push plate.

[0013] Optionally, the side baffle of the alignment assembly farther from the carton feed end is higher than the side baffle of the alignment assembly closer to the carton feed end.

[0014] Optionally, both the fixing plate and the side baffle have arc-shaped grooves at their bottoms that are adapted to the outer peripheral wall of the conveyor roller.

[0015] A carton sorting and packaging device includes a carton stacking and sorting device and a strapping machine disposed on the discharge side of the frame. The pusher plate can push the stacked and sorted cartons from the frame to the strapping machine.

[0016] The beneficial effects of this utility model are as follows: In this invention, after the cardboard box enters the sorting space, one side baffle repeatedly slides towards another side baffle to push the side of the cardboard box, so that the cardboard box rests against another side push plate. The lifting limit seat limits the side of the cardboard box. The push plate pushes the other end of the cardboard box and cooperates with the lifting limit seat to achieve stacking alignment. After stacking, the lifting limit seat moves down, and the push plate pushes the stacked cardboard box out of the sorting space. At this time, the piston rod of the telescopic rod extends into the sorting space to support the cardboard box waiting to enter above and avoid the pushing action of the push plate. After the push plate resets, the piston rod retracts, and the supported cardboard box falls into the sorting space to continue stacking.

[0017] When the pusher plate pushes the stacked cartons, the telescopic rod can support the cartons to be put in. The cartons to be stacked can be received in advance without waiting for the pusher plate to reset, so that the carton conveying and stacking are connected continuously, eliminating intermittent operations, improving overall work efficiency, and meeting the production needs of continuous and high-speed production in high-speed production scenarios. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a cardboard box stacking and sorting device in one embodiment of the present invention; Figure 2 for Figure 1 A magnified view of a portion at point A in the embodiment; Figure 3 for Figure 1 A magnified view of a portion of point B in the embodiment; Figure 4 for Figure 1 A magnified view of a portion of point C in the embodiment; Figure 5 for Figure 1 A front view of the carton stacking and sorting device in the embodiment; Figure 6 for Figure 1 A schematic diagram of the structure of the adjustment component in the embodiment; Figure 7 for Figure 1 A schematic diagram of the conveyor roller conveyor structure in the embodiment; Figure 8 for Figure 1 A schematic diagram of the mounting base in the embodiment; Figure 9 for Figure 1 The embodiment shows a schematic diagram of the structure of the carton sorting and packaging equipment.

[0020] In the diagram: 100, conveying device; 1, frame; 2, alignment assembly; 20, sorting space; 21, fixing plate; 22, side baffle; 23, telescopic rod; 231, piston rod body; 24, mounting base; 241, through hole; 242, clearance groove; 25, driver; 3, push plate; 4, conveyor roller; 5, circulating drive component; 51, mounting plate; 52, conveyor chain; 6, baffle; 7, adjusting assembly; 71, support slide bar; 72, lead screw; 73, lead nut; 8, strapping machine. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0022] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and 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. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-4As shown, this invention illustrates a carton stacking and sorting device according to one embodiment of the present invention. The device includes a frame 1, two sets of alignment components 2 symmetrically arranged on the frame 1, a lifting limit seat that is lifted and lowered on the frame 1, and a push plate 3 that is slidably arranged on the frame 1. The device aligns the front, back, left, and right sides of the carton. A sorting space 20 for accommodating the carton is formed between the two sets of alignment components 2. It should be noted that the width spacing of the sorting space 20 is greater than the width spacing of the carton, so that the carton falling from the conveyor line can accurately fall into the sorting space 20.

[0028] Specifically, the alignment component 2 is used to align the sides of stacked cartons. The alignment component 2 includes a fixing plate 21 and a side baffle 6. The fixing plate 21 is mounted on the frame 1, and the side baffle 6 is slidably mounted on the frame 1 in a direction that approaches or moves away from another alignment component 2. A telescopic rod 23 is mounted on the fixing plate 21, and the piston rod 231 of the telescopic rod 23 can pass through the side baffle 6 and extend into the sorting space 20. A lifting limit seat is lifted and mounted on the frame 1 to limit one end of the cartons. A push plate 3 is slidably mounted on the frame 1. 3 is used to push the other end of the carton to align the stacked cartons with the lifting limit seat, and can push the stacked cartons out of the sorting space 20 when the lifting limit seat moves down; wherein, when the push plate 3 pushes the sorted stacked cartons out of the sorting space 20, the piston rod 231 of the telescopic rod 23 can extend into the sorting space 20 to support the cartons to be entered above, and avoid the pushing action of the push plate 3; when the push plate 3 is reset, the piston rod 231 of the telescopic rod 23 retracts to release the supported cartons into the sorting space 20.

[0029] It should be noted that the cartons of this device enter the sorting space 20 from the top of the frame 1. After the cartons on the conveyor line are initially sorted, they can be continuously conveyed to the frame 1 for sorting in a certain order. Moreover, a detection device is set on the frame 1. When each stack of cartons reaches a certain number, such as 10 cartons per stack, the push plate 3 can push them out of the frame 1.

[0030] In the above scheme, after the carton enters the sorting space 20, one side baffle 6 repeatedly slides towards another side baffle 6 to push the side of the carton, so that the carton rests against another side push plate 3. The lifting limit seat limits the side of the carton. The push plate 3 pushes the other end of the carton and cooperates with the lifting limit seat to achieve stacking alignment. After stacking is completed, the lifting limit seat moves down, and the push plate 3 pushes the stacked carton out of the sorting space 20. At this time, the piston rod 231 of the telescopic rod 23 extends into the sorting space 20 to support the carton waiting to enter above and avoid the pushing action of the push plate 3. After the push plate 3 resets, the piston rod 231 retracts, and the supported carton falls into the sorting space 20 to continue stacking.

[0031] When the pusher plate 3 pushes the stacked cartons, the telescopic rod 23 can support the cartons to be fed. The cartons to be stacked can be received in advance without waiting for the pusher plate 3 to reset, so that the carton conveying and stacking are continuously connected, eliminating intermittent operations, improving overall work efficiency, and meeting the production needs of continuous and high-speed production in high-speed production scenarios.

[0032] like Figure 4 As shown, the frame 1 is further provided with two sets of symmetrically arranged conveyor rollers 4. A circulating drive 5 for reciprocating movement of the push plate 3 is installed between the two sets of conveyor rollers 4. The circulating drive 5 includes two mounting plates 51 symmetrically arranged on the frame 1 and a conveyor chain 52 circulated between the two mounting plates 51. Each set of conveyor rollers 4 is located between a mounting plate 51 and the side wall of the frame 1, and the push plate 3 is installed on the conveyor chain 52.

[0033] In the above scheme, the cartons to be stacked are pushed from one side baffle 6 to another side baffle 6 in the sorting space 20. When the pusher plate 3 needs to push the cartons to align or push the stacked cartons, the conveyor chain 52 rotates cyclically, driving the pusher plate 3 installed on it to move back and forth along the frame 1, realizing the pushing and alignment of the cartons and the pushing action after stacking. After the pushing is completed, the conveyor chain 52 drives the pusher plate 3 to reset. The conveyor roller 4 provides a stable channel for the carton conveying. The circulating drive component 5 drives the pusher plate 3 to move back and forth through the conveyor chain 52. Compared with the traditional drive method, the driving force is more stable and the transmission efficiency is higher. It can accurately control the movement rhythm and stroke of the pusher plate 3. Together with the conveyor roller 4, the coordination between the carton conveying and the pusher plate 3 is stronger, further improving the continuity and efficiency of the operation.

[0034] like Figure 4 and Figure 5 As shown, the lifting limit seat further comprises a baffle 6 and a lifting component. The baffle 6 is used to align the other end of the carton. The lifting component is mounted on the mounting plate 51, and the baffle 6 is fixed to the movable end of the lifting component. The lifting component can drive the baffle 6 to rise and fall vertically. The lifting component is a hydraulic rod, and it is located below the end of the mounting plate 51. This allows the lifting component to avoid the push plate 3 and the carton after it has fully descended.

[0035] In the above scheme, after the carton enters the sorting space 20, the lifting component raises the baffle 6 to a set height. The pusher 3 pushes the carton so that the other end of the carton is aligned with the baffle 6. When the carton is stacked and needs to be pushed, the lifting component lowers the baffle 6 to a position below the movement trajectory of the pusher 3 to avoid the pushing action of the pusher 3. After the pusher 3 has finished pushing, the lifting component raises the baffle 6 back to its original position. By controlling the raising and lowering of the baffle 6 through the lifting component, it is possible to accurately avoid interference between the baffle 6 and the pusher 3 when they are pushed, ensuring a smooth pushing action. At the same time, the alignment effect after the baffle 6 rises ensures the neatness of the carton stack, improves the stacking quality, and the lifting action is responsive and does not affect the overall work rhythm.

[0036] like Figure 3 As shown, the alignment assembly 2 further includes a mounting base 24 and a driver 25. The driver 25 is a hydraulic rod or an electric actuator. The mounting base 24 is fixed on the frame 1. The fixing plate 21 is mounted on the mounting base 24. The driver 25 is mounted on the mounting base 24. The output end of the driver 25 passes through the mounting base 24 and the fixing plate 21 and is connected to the side baffle 6, which can drive the side baffle 6 to slide in the direction of approaching or moving away from the other side baffle 6.

[0037] In the above scheme, the output end of the driver 25 extends and retracts, causing the side baffle 6 to slide along the frame 1, which can push the carton board to align with another side baffle 6. In application, the alignment action can be performed every two or three cartons, achieving alignment limit on the side of the carton. The driver 25 provides power for the sliding of the side baffle 6, ensuring that the carton will not be skewed during stacking and improving the neatness of stacking.

[0038] like Figure 6 As shown, the frame 1 is further provided with an adjustment component 7 for adjusting the distance between the two alignment components 2. The adjustment component 7 includes a support slide rod 71 and a lead screw 72. The support slide rod 71 is fixed on the frame 1. The fixed plate 21 and the side baffle 6 are both provided with through holes 241. The support slide rod 71 passes through the through holes 241 and is slidably connected to both. The lead screw 72 is rotatably mounted on the frame 1 and is parallel to the support slide rod 71. The fixed plate 21 and the side baffle 6 are provided with lead screw nuts 73. The lead screw 72 is threadedly connected to the lead screw nuts 73.

[0039] In the above scheme, when it is necessary to adjust the distance between the two alignment components 2 to accommodate cartons of different sizes, the lead screw 72 is rotated. The lead screw 72, through its threaded engagement with the nut 73, drives the fixed plate 21 and the side baffle 6 to slide along the support slide rod 71. The support slide rod 71 guides the sliding of the fixed plate 21 and the side baffle 6 until the distance between the two alignment components 2 is adjusted to the set value, at which point the lead screw 72 is stopped. It should be noted that a bidirectional lead screw 72 can be used to adjust the two alignment components 2 synchronously. The adjustment of the distance between the alignment components 2 is achieved through the cooperation of the lead screw 72 and the nut 73, which provides high adjustment accuracy and keeps the distance stable. The guiding effect of the support slide rod 71 ensures that the alignment components 2 will not shift during the adjustment process, improving adjustment stability, adapting to the stacking requirements of cartons of different sizes, and enhancing the versatility of the device.

[0040] like Figure 7 and Figure 8 As shown, further, the mounting base 24 is provided with a clearance groove 242. The size and position of the clearance groove 242 are adapted to the conveyor roller 4, so that the conveyor roller 4 can pass through the clearance groove 242 and be installed on the frame 1.

[0041] In the above scheme, during installation, the conveyor roller 4 passes through the clearance groove 242 on the mounting base 24, so that the mounting base 24 and the conveyor roller 4 are reasonably arranged on the frame 1. When the cartons are conveyed to the sorting space 20 by the conveyor roller 4, the clearance groove 242 will not obstruct the carton conveying and the sliding of the side baffle 6. The driver 25 normally drives the side baffle 6 to slide and achieve alignment. The setting of the clearance groove 242 allows the mounting base 24 and the conveyor roller 4 to be compactly arranged, reducing the overall space occupied by the device, avoiding interference between the mounting base 24 and the conveyor roller 4, ensuring the normal operation of the carton conveying function of the conveyor roller 4 and the alignment function of the side baffle 6, and improving the rationality of the device structure.

[0042] Furthermore, the height of the telescopic rod 23 mounted on the fixed plate 21 is higher than the sliding height of the push plate 3 on the frame 1, and the piston rod 231 extending from the telescopic rod 23 is located above the push plate 3.

[0043] In the above scheme, when the pusher plate 3 slides along the frame 1 to push stacked cartons, the piston rod 231 of the telescopic rod 23 extends into the sorting space 20. Since the height of the telescopic rod 23 is higher than that of the pusher plate 3, the piston rod 231 will not contact the sliding pusher plate 3 when the carton is being fed above the support. After the pusher plate 3 completes its push and resets, the piston rod 231 retracts to release the carton. The height difference design between the telescopic rod 23 and the pusher plate 3 effectively avoids interference between the two during operation, ensuring that the pushing action of the pusher plate 3 and the supporting action of the telescopic rod 23 do not affect each other, so that the receiving of the carton to be stacked and the pushing of the stacked carton can be carried out synchronously, ensuring the stability of continuous operation.

[0044] Furthermore, in the two sets of alignment components 2, the side baffle 6 of the alignment component 2 farther from the carton feeding end is higher than the side baffle 6 of the alignment component 2 closer to the carton feeding end.

[0045] In the above scheme, when the carton enters the sorting space 20 from the feeding end, the lower side baffle 6 near the feeding end will not obstruct the carton feeding. After the carton enters, the two side baffles 6 limit the sides of the carton, and the higher side baffle 6 away from the feeding end can more fully block and limit the sides of the carton away from the feeding end, so that the carton falls into the sorting space 20. The design of side baffles 6 at different heights not only ensures the smooth feeding of the carton, but also enhances the limiting effect on the sides of the carton away from the feeding end.

[0046] Furthermore, both the bottom of the fixed plate 21 and the side baffle 6 are provided with arc-shaped grooves. The curvature of the arc-shaped grooves is adapted to the curvature of the outer peripheral wall of the conveyor roller 4, and the arc-shaped grooves are set to fit the outer peripheral wall of the roller 4.

[0047] In the above scheme, when the fixed plate 21 and the side baffle 6 are installed, the arc-shaped groove at the bottom of them fits against the outer peripheral wall of the conveyor roller 4. When the side baffle 6 slides to adjust its position under the drive of the driver 25, the arc-shaped groove slides along the outer peripheral wall of the roller 4, without obstructing the rotation of the conveyor roller 4, allowing the conveyor roller 4 to operate normally and convey cartons. The matching design of the arc-shaped groove and the roller 4 allows the fixed plate 21 and the side baffle 6 to be installed closer to the conveyor roller 4, reducing the gap between them and preventing cartons from getting stuck in the gap during conveying and causing damage. At the same time, the side baffle 6 slides more tightly against the roller 4, making the sliding smoother and improving the alignment accuracy.

[0048] like Figure 9 As shown, a carton sorting and packaging equipment includes a carton stacking and sorting device and a strapping machine 8 disposed on the discharge side of the frame 1. The pusher plate 3 can push the stacked and sorted cartons from the frame 1 to the strapping machine 8.

[0049] In the above scheme, a strapping machine 8 is installed on the discharge side of the frame 1, and the pushing stroke of the pusher plate 3 covers the feeding area from the sorting space 20 to the strapping machine 8. After the cartons are stacked and aligned by the stacking and sorting device, the pusher plate 3 is activated to push the stacked cartons out of the sorting space 20 and push them along a set trajectory to the feeding area of ​​the strapping machine 8 on the discharge side of the frame 1. The strapping machine 8 automatically straps the incoming stacked cartons, while the stacking and sorting device continues to stack the next batch of cartons. By integrating the stacking and sorting and strapping processes into one, the pusher plate 3 directly pushes the stacked cartons to the strapping machine 8, eliminating the need for manual handling or additional conveying equipment, shortening the connection time between processes, improving overall work efficiency, and realizing continuous production from carton stacking to strapping.

[0050] In addition, the conveying device 100 for conveying carton boards is located on the feeding side of the stacking and sorting device frame 1 and is set close to the frame 1. The strapping machine 8 is set on the discharge side of the frame 1 and is also set close to the frame 1. This can reduce the floor space occupied by the three devices and make the carton conveying, sorting and packing processes more continuous and speed up the production.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cardboard box stacking and sorting device, characterized in that, include: Rack (1); Alignment assembly (2) has two sets, which are symmetrically arranged on the frame (1) and form a sorting space (20) for accommodating cartons. The alignment assembly (2) is used to align the sides of stacked cartons. The alignment assembly (2) includes a fixing plate (21) and a side baffle (22). The fixing plate (21) is disposed on the frame (1), and the side baffle (22) is slidably disposed on the frame (1) in a direction close to or away from the other set of alignment assembly (2). A telescopic rod (23) is provided on the fixing plate (21), and the piston rod (231) of the telescopic rod (23) can pass through the side baffle (22) and extend into the sorting space (20). A lifting limit seat is lifted and mounted on the frame to limit one end of the carton. Push plate (3) is slidably set on the frame (1). The push plate (3) is used to push the other end of the carton to match the lifting limit seat to align the stacked cartons. It can also push the stacked cartons to outside the sorting space (20) when the lifting limit seat moves down. When the push plate (3) pushes the stacked cartons out of the sorting space (20), the piston rod (231) of the telescopic rod (23) can extend into the sorting space (20) to support the cartons to be entered above and avoid the pushing action of the push plate (3); when the push plate (3) is reset, the piston rod (231) of the telescopic rod (23) retracts to release the supported cartons into the sorting space (20).

2. The cardboard box stacking and sorting device according to claim 1, characterized in that, The frame (1) is provided with two sets of symmetrically arranged conveyor rollers (4), and a circulating drive (5) for driving the push plate (3) to reciprocate is provided between the two sets of conveyor rollers (4). The circulating drive (5) includes: Mounting plates (51) are provided in two, and the two mounting plates (51) are symmetrically arranged on the frame (1). Each set of conveyor rollers (4) is arranged between one of the mounting plates (51) and the side wall of the frame (1). The conveyor chain (52) is cyclically arranged between the two mounting plates (51), and the pusher plate (3) is arranged on the conveyor chain (52). The conveyor chain (52) can drive the pusher plate (3) to move back and forth.

3. The cardboard box stacking and sorting device according to claim 2, characterized in that, The lifting limit seat includes: A baffle (6) is used to align the other end of the carton; The lifting component is mounted on the mounting plate (51), and the baffle (6) is mounted on the movable end of the lifting component. When the push plate (3) pushes out the stacked cartons, the baffle (6) descends to avoid the pushing action of the push plate (3).

4. A cardboard box stacking and sorting device according to claim 2, characterized in that, The alignment component (2) further includes: Mounting base (24) is disposed on the frame (1), and fixing plate (21) is disposed on the mounting base (24); A driver (25) is disposed on the mounting base (24), and the output end of the driver (25) passes through the mounting base (24) and the fixing plate (21) and is connected to the side baffle (22). The driver (25) is used to drive the side baffle (22) to slide back and forth in a direction close to or away from the other side baffle (22).

5. A cardboard box stacking and sorting device according to claim 1, characterized in that, The frame (1) is provided with an adjustment component (7) for adjusting the distance between two alignment components (2), the adjustment component (7) comprising: A support slide rod (71) is provided on the frame (1). Both the fixed plate (21) and the side baffle (22) are provided with through holes (241). The support slide rod (71) passes through the through holes (241) and is slidably connected to the fixed plate (21) and the side baffle (22). The lead screw (72) is rotatably mounted on the frame (1) and arranged parallel to the support slide bar (71). The fixing plate (21) and the side baffle (22) are provided with lead nuts (73), and the lead screw (72) is threadedly connected to the lead nuts (73).

6. A cardboard box stacking and sorting device according to claim 4, characterized in that, The mounting base (24) is provided with a clearance groove (242) for avoiding the conveyor roller (4).

7. A cardboard box stacking and sorting device according to claim 1, characterized in that, The telescopic rod (23) is set at a height higher than the push plate (3).

8. A cardboard box stacking and sorting device according to claim 1, characterized in that, The height of the side baffle (22) of the alignment assembly (2) away from the carton feed end is higher than the height of the side baffle (22) of the alignment assembly (2) near the carton feed end.

9. A cardboard box stacking and sorting device according to claim 2, characterized in that, The bottom of both the fixed plate (21) and the side baffle (22) is provided with an arc-shaped groove that is adapted to the outer peripheral wall of the conveying roller (4).

10. A cardboard box sorting and packaging device, characterized in that, The device includes a carton stacking and sorting apparatus as described in any one of claims 1 to 9 and a strapping machine (8) disposed on the discharge side of the frame (1), wherein the pusher plate (3) is capable of pushing the stacked and sorted cartons from the frame (1) to the strapping machine (8).

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