High speed elevator for cartons

Abstract

A kind of high-speed lifting machine of packaging box, including main frame, and feeding device and discharging device symmetrically distributed in both sides of main frame, the feeding device with the discharging device are connected by conveying mechanism, packaging box is input via input conveyor belt, and is lifted into conveying mechanism by feeding device;The conveying mechanism transports packaging box to discharging device, packaging box is lowered by discharging device, and is output via output conveyor belt, to realize the rapid conveying of packaging box;The feeding device and discharging device all include at least two lifting structures, two lifting structures are left empty to form active area, the lower end of the active area is equipped with guide structure and is communicated with the input conveyor belt and the output conveyor belt;One side of the two lifting structures is equipped with adjusting device, and adjusting device adjusts the width of the active area.The beneficial effects of the utility model are: setting three-dimensional conveying mode provides sufficient passage space for operator, and it is convenient to operate and maintain.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, specifically a high-speed lifting machine for packaging boxes. Background Technology

[0002] Most packaging production lines on the market use straight horizontal conveyor belts for horizontal transport of packaging boxes. To ensure smooth operation and prevent collisions or stacking between boxes, these straight horizontal conveyor lines require sufficient buffer areas. In traditional straight horizontal conveyor belt structures, this is achieved by increasing the straight length of the conveyor belt. This results in high environmental requirements for the entire packaging production line, necessitating extremely spacious factory buildings, severely limiting the scope and flexibility of the packaging equipment. For small manufacturers with limited production space, inefficient space utilization increases operating costs and hinders their competitiveness. Secondly, during daily production, operators may frequently need to move between the production lines to adjust equipment, replenish materials, or perform maintenance. When the production line is long, operators often have to travel considerable distances, wasting significant time, reducing efficiency, and even delaying troubleshooting when a malfunction occurs at a distant end of the production line, potentially causing production line shutdowns and economic losses.

[0003] In addition, with the increase in industrial automation and the popularization of multi-layer production layouts, linear horizontal transportation can only meet the needs of two-dimensional plane transportation. For scenarios that require rapid transmission between different height levels, additional and complex lifting or lowering mechanisms are often required, which are inefficient, occupy a large area, and increase the complexity and failure rate of the production line conveying system. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a high-speed lifting machine for packaging boxes that is simple in structure, low in manufacturing cost, enables three-dimensional conveying of packaging boxes, improves space utilization, is easy to maintain and operate, has high production efficiency, and is highly flexible.

[0005] The objective of this utility model is achieved through the following method: a high-speed lifting machine for packaging boxes, comprising a main frame and a feeding device and a discharging device symmetrically distributed on both sides of the main frame. The feeding device and the discharging device are connected by a conveying mechanism. Packaging boxes are input via an input conveyor belt and lifted into the conveying mechanism by the feeding device. The conveying mechanism transports the packaging boxes to the discharging device, which lowers the boxes and outputs them via an output conveyor belt, thereby achieving rapid transport of the packaging boxes. Both the feeding device and the discharging device include at least two lifting structures, with a gap between the two lifting structures forming an active area. A guide structure is installed at the lower end of the active area, communicating with the input conveyor belt and the output conveyor belt. An adjustment device is installed on one side of each of the two lifting structures to adjust the width of the active area. The lifting structure includes two lifting chains, with a drive sprocket mounted on the upper end of each chain and a driven sprocket mounted on the lower end. The main shaft of the lifting drive motor is connected to the shaft of the drive sprocket. The lifting structure also includes several clamps located on the outer sides of the two lifting chains. The clamps on opposite sides of the two lifting structures form a lifting groove, to which the packaging box is conveyed for rising or falling. The conveying mechanism includes a conveying platform mounted on the upper end of the main frame. The inlet end of the conveying platform is connected to a feeding device, and the outlet end is connected to a discharging device. The conveying mechanism also includes a conveying chain located above the conveying platform and several push plates mounted on the conveying chain. The push plates extend towards the conveying platform end. The conveying drive motor drives the conveying chain to rotate, and the push plates push the packaging box to move.

[0006] The clamp includes a side plate and a bottom plate, which are arranged in an L-shape. The bottom plate is fixed to the lifting chain via a connecting seat.

[0007] The conveyor table is provided with baffles on both sides, and the baffles and the conveyor table together form a guide groove, which restricts the packaging box to be transported in the guide groove.

[0008] The pusher plates are distributed at equal intervals along the conveyor chain. The upper end of the pusher plate is connected to the conveyor chain through a mounting base, and the lower end has connecting plates protruding on both sides. The packaging box is attached to the connecting plate.

[0009] The adjustment device includes a transverse slider mounted on the main frame and a transverse slide rail connected to the outside of the lifting structure. The transverse slide rail clamps the transverse slider and moves laterally along the transverse slider. There are two transverse sliders distributed along the axial direction of the main frame. The adjustment device also includes a synchronous chain and its drive handle located on one side of the transverse slider.

[0010] The adjustment device further includes a first lead screw and a second lead screw installed on the transverse slider, and transmission nuts respectively fitted outside the first lead screw and the second lead screw. The first lead screw and the second lead screw are connected as one unit by a locking seat. The thread direction of the first lead screw is opposite to that of the second lead screw. One side of the transmission nut is connected to the transverse slide rail. The other end of the first lead screw is shaft-connected to a drive sprocket and a driven sprocket. A synchronous chain loop is wrapped around the drive sprocket and the driven sprocket. The drive handle is connected to the drive sprocket.

[0011] A limiting rod is installed in the activity area, and one side of the limiting rod is fixedly connected to the main frame; the packaging box is transported to the activity area and locked onto the other side of the limiting rod.

[0012] The material guiding structure includes an extension plate and a conveyor belt fitted inside the extension plate. The extension plate extends toward the active area and passes through the active area, communicating with the input conveyor belt and the output conveyor belt. The material guiding structure also includes a drive wheel located below the extension plate. The main shaft of the material guiding drive motor is connected to the drive wheel shaft. The conveyor belt is fitted outside the drive wheel. An auxiliary wheel is also provided below the extension plate, and the auxiliary wheel presses against the outer wall of the conveyor belt.

[0013] Position detectors are installed at both ends of the conveying mechanism.

[0014] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0015] 2. Set up symmetrically distributed feeding and discharging devices to transform from a single horizontal direction to a three-dimensional mode of vertical upward-horizontal conveying-downward, realizing three-dimensional conveying of packaging boxes. While ensuring sufficient buffer area, it significantly shortens the horizontal length, improves space utilization, and reduces operating costs.

[0016] 3. Set up a three-dimensional conveyor system to provide sufficient passage space for operators, facilitate operation and maintenance, improve production efficiency and maintenance response speed, and reduce labor costs.

[0017] 4. An adjustment device is set up to adjust the width of the active area, which can adapt to the conveying of packaging boxes of different sizes. It has strong adaptability and flexibility and can meet diverse conveying needs.

[0018] 5. Set up a material guiding structure to ensure the smooth transport of packaging boxes, guarantee the precise positioning of packaging boxes, and improve the stability and reliability of the entire transport process. Attached Figure Description

[0019] Figure 1 This is a rendering of the final assembly of this utility model.

[0020] Figure 2This is a schematic diagram of the hidden part of the main frame in this utility model.

[0021] Figure 3 In this utility model Figure 2 Enlarged view of point A.

[0022] Figure 4 This is a schematic diagram of the main frame, feeding device, and discharging device in this utility model.

[0023] Figure 5 This is a schematic diagram of the feeding device, conveying mechanism, and discharging device in this utility model.

[0024] Figure 6 In this utility model Figure 5 Enlarged view of point B.

[0025] Figure 7 This is a schematic diagram of the working state of the material guiding structure in this utility model.

[0026] Figure 8 This is an exploded view of the material guiding structure and the lifting structure in this utility model.

[0027] Figure 9 This is an exploded view of the material guiding structure in this utility model.

[0028] Figure 10 This is a schematic diagram of the back structure of the adjustment device in this utility model.

[0029] Figure 11 This is a front view of the adjustment device in this utility model.

[0030] Figure 12 In this utility model Figure 11 Enlarged view of point C.

[0031] Figure 13 This is a schematic diagram of the adjusting device in this utility model.

[0032] Figure 14 This is a schematic diagram of the lifting structure in this utility model.

[0033] Figure 15 This is an exploded view of the lifting structure in this utility model. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings. A high-speed lifting machine for packaging boxes includes a main frame 1, and a feeding device and a discharging device symmetrically distributed on both sides of the main frame 1. The feeding device and the discharging device are connected by a conveying mechanism 3. The packaging box 6 is input via an input conveyor belt 10 and is lifted into the conveying mechanism 3 by the feeding device. The conveying mechanism 3 conveys the packaging box 6 to the discharging device. The packaging box 6 is lowered by the discharging device and output via an output conveyor belt 11, thereby realizing the rapid conveying of the packaging box 6. The feeding device and the discharging device each include at least two lifting structures 2, with a gap between the two lifting structures 2 to form an active area 13. A guide structure 5 is installed at the lower end of the active area 13 and communicates with the input conveyor belt 10 and the output conveyor belt 11. An adjustment device is installed on one side of the two lifting structures 2 to adjust the width of the active area 13. The lifting structure 2 includes two lifting chains 21. The upper end of the lifting chain 21 is fitted with a drive sprocket 22, and the lower end of the lifting chain 21 is fitted with a driven sprocket 23. The main shaft 251 of the lifting drive motor 25 is connected to the shaft of the drive sprocket 22. The lifting structure 2 also includes several clamps 24 disposed on the outside of the two lifting chains 21. The clamps 24 on opposite sides of the two lifting structures 2 form a lifting groove, and the packaging box 6 is conveyed to the lifting groove for rising or falling. The conveying mechanism 3 includes a conveying platform 31 installed on the upper end of the main frame 1. The inlet end of the conveying platform 31 is connected to a feeding device, and the outlet end of the conveying platform 31 is connected to a discharging device. The conveying mechanism 3 also includes a conveying chain 32 located above the conveying platform 31 and several push plates 33 installed on the conveying chain 32. The push plates 33 extend toward the end of the conveying platform 31. The conveying drive motor 34 drives the conveying chain 32 to rotate, and pushes the packaging box 6 to move through the push plates 33.

[0035] The packaging box is first fed into the input conveyor belt and then transported to the working range of the feeding device. The feeding device then lifts the packaging box and transports it into the working range of the conveying mechanism. Driven by the conveying mechanism, the packaging box is then transported to the working range of the discharge device, where it is lowered and finally discharged through the output conveyor belt, thus achieving rapid transport of the packaging box.

[0036] Both the feeding and discharging devices include at least two lifting structures, with a gap between them forming an active zone. The packaging box moves along a guide structure installed at the lower end of this active zone until it is precisely fed into the lifting groove formed by the clamps on opposite sides of the two lifting structures. At this point, the lifting drive motor drives the lifting chain to rotate, causing the clamps to move upwards, thus raising the packaging box from its lower position to a preset height. The packaging box is then smoothly conveyed by the feeding device into the inlet of the conveyor table of the conveying mechanism. An adjustment device is installed on one side of each of the two lifting structures to adjust the width of the active zone, thereby accommodating the conveying of packaging boxes of various sizes.

[0037] The conveying mechanism includes a conveyor platform, a conveyor chain above it, and a pusher plate mounted on the conveyor chain. When a packaged box enters the working range of the conveying mechanism, the pusher plate moves forward under the drive of the conveyor chain until it adheres to the outer wall of the packaged box, thus pushing the packaged box horizontally on the conveyor platform, completing the conveying from the feeding device to the discharging device. The discharging device works on a similar principle to the feeding device, but its lifting drive is set to forward and reverse rotation by the control system, and the discharging device is in descending mode. Through the reverse movement of the lifting chain, the packaged box descends from a high position, smoothly enters the guide structure for output, and then enters the output conveyor belt. The packaged box completes the entire conveying process of high-speed lifting and lowering.

[0038] Unlike the traditional linear conveying method for packaging boxes, this equipment transforms from a single horizontal direction to a three-dimensional mode of vertical ascent-horizontal conveying-descent, significantly reducing the horizontal length of the conveying production line. This equipment can achieve the same buffer area as traditional long linear conveying in a smaller footprint. Other processes can be carried out below the horizontal conveying line, allowing workers sufficient space to move around without having to detour. Workers can directly pass under the conveying production line for inspection and maintenance, improving worker access efficiency and maintenance convenience.

[0039] The clamp 24 includes a side plate 241 and a bottom plate 242, which are arranged in an L-shape. The bottom plate 242 is fixed to the lifting chain 21 via a connecting seat 26. Figure 15 As shown, the clamping structure includes L-shaped side plates and a bottom plate, with the bottom plate fixedly mounted on the lifting chain. In the lifting structure, when the packaging box is conveyed into the lifting groove surrounded by the clamps, the bottom of the packaging box contacts the bottom plate, while its sides contact the side plates. This provides support for the bottom of the packaging box and lateral guidance, ensuring that the packaging box is stably supported in the lifting groove when the lifting chain rotates, effectively preventing the packaging box from tilting or tipping over during ascent or descent.

[0040] Baffles 35 are provided on both sides of the conveyor table 31. The baffles 35 and the conveyor table 31 together form a guide groove, which confines the packaging box 6 within the guide groove for conveying. Figure 6 As shown: Baffles are installed on both sides of the conveyor table. The baffles and the conveyor table body together form a guide groove. The packaging box is conveyed onto the conveyor table and pushed. The guide groove limits the lateral movement of the packaging box and guides the horizontal straight-line conveying of the packaging box. The packaging box is confined within the set conveying path, which effectively prevents the packaging box from deviating or falling off due to external factors such as inertia and vibration during the horizontal high-speed conveying process. This ensures the smoothness and accuracy of the conveying process, reduces the situation of misalignment caused by inaccurate positioning in the later stages, and ensures the normal operation of subsequent processes.

[0041] Several push plates 33 are evenly distributed along the conveyor chain 32. The upper end of each push plate 33 is connected to the conveyor chain 32 via a mounting base 332, and its lower end has connecting plates 331 protruding from both sides. The packaging box 6 is attached to these connecting plates 331. Figure 6 As shown: The pusher plate distributes the lamps along the conveyor chain. When the conveyor chain rotates, the pusher plate moves synchronously. The connecting plate protruding from the lower end of the pusher plate contacts the back of the packaging box, providing a forward pushing force to the box. At this time, the packaging box is tightly fitted to the connecting plate and is stably conveyed forward by the pusher plate. The wide surface of the connecting plate provides a larger contact area with the packaging box, avoiding damage or unstable pushing that may be caused by single-point force on the packaging box. It is especially suitable for conveying fragile or printing-sensitive packaging boxes.

[0042] The adjustment device includes a transverse slider 41 mounted on the main frame 1 and a transverse slide rail 42 connected to the outside of the lifting structure 2. The transverse slide rail 42 clamps the transverse slider 41 within it and moves laterally along the transverse slider 41. There are two transverse sliders 41 distributed along the axial direction of the main frame 1. The adjustment device also includes a synchronous chain 43 and its drive handle 44 located on one side of the transverse slider 41.

[0043] The adjustment device further includes a first lead screw 45 and a second lead screw 46 installed on the transverse slider 41, and a transmission nut 47 respectively fitted outside the first lead screw 45 and the second lead screw 46. The first lead screw 45 and the second lead screw 46 are connected as one unit by a locking seat 48. The thread direction of the first lead screw 45 is opposite to that of the second lead screw 46. One side of the transmission nut 47 is connected to the transverse slide rail 42. The other end of the first lead screw 45 is shaft-connected to a drive sprocket 491 and a driven sprocket 492. A synchronous chain 43 is looped around the drive sprocket 491 and the driven sprocket 492. The drive handle 44 is connected to the drive sprocket 491.

[0044] The adjustment device includes a transverse slider mounted on the main frame and a transverse slide rail connected to the outside of the lifting structure. The transverse slider is a fixed component, while the transverse slide rail is a movable component. The transverse slide rail can move laterally along the transverse slider, thus synchronously driving the lifting structure connected to the transverse slide rail to move laterally. To ensure stable movement, two transverse sliders are distributed along the axial direction of the main frame, ensuring consistent width adjustment at both the upper and lower ends of the overall moving area.

[0045] The adjustment device also includes a first lead screw and a second lead screw mounted on the horizontal slider. A transmission nut is threaded onto each lead screw and connected to the horizontal slide rail on one side. It should be noted that the threads of the first and second lead screws are opposite in direction, and a locking seat connects the two lead screws together, ensuring synchronous rotation. When the user rotates the drive handle, the synchronous chain drives the first and second lead screws to rotate synchronously via a drive sprocket and a driven sprocket connected to the first lead screw. Because the threads of the two lead screws are opposite, their rotation causes the two transmission nuts to move in opposite directions at the same speed. This, in turn, drives the lifting structure to move synchronously and symmetrically inward or outward via the horizontal slide rail, precisely adjusting the width of the working area. The combination of the opposite-threaded lead screws and the synchronous chain achieves synchronous and symmetrical movement of the lifting structure on both sides, avoiding tilting or jamming that may occur with unilateral adjustment, thus improving the efficiency and stability of the adjustment. The use of a lead screw for transmission provides high-efficiency and precise control, ensuring accurate adjustment of the working area width to accommodate packaging boxes of various sizes. Meanwhile, the drive handle is manually operated, making adjustment effortless and efficient. The structure is simple, manufacturing costs are low, and adjustment is convenient and quick.

[0046] A limiting rod 14 is installed within the activity area 13, with one side of the limiting rod 14 fixedly connected to the main frame 1; the packaging box 6 is conveyed into the activity area 13 and secured to the other side of the limiting rod 14. Figure 10 As shown: Limiting rods are installed in the activity area. When the packaging box is conveyed to the activity area by the guiding structure, but before it is clamped and lifted by the lifting structure, the packaging box will be stuck on one side of the limiting rod. The limiting rod plays a preliminary positioning role for the packaging box, ensuring a clear stopping position of the packaging box and avoiding inaccurate positioning caused by excessive conveying of the packaging box.

[0047] The material guiding structure 5 includes an extension plate 51 and a conveyor belt 52 fitted inside the extension plate 51. The extension plate 51 extends toward the movable area 13 and passes through the movable area 13, communicating with the input conveyor belt 10 and the output conveyor belt 11. The material guiding structure 5 also includes a drive wheel 53 located below the extension plate 51. The main shaft of the material guiding drive motor 55 is connected to the shaft of the drive wheel 53. The conveyor belt 52 is fitted outside the drive wheel 53. An auxiliary wheel 54 is also provided below the extension plate 51, and the auxiliary wheel 54 presses against the outer wall of the conveyor belt 52. Figure 9 As shown, the guiding structure includes an extension plate and a conveyor belt fitted around the extension plate. The extension plate extends towards and through the active area, connecting with the input and output conveyor belts. When a package is input from the input conveyor belt, it smoothly transitions onto the conveyor belt and moves to a preset position in the active area under the belt's influence. Similarly, when a package falls onto the conveyor belt, it smoothly transitions onto the output conveyor belt. Thanks to the guiding structure, the package transitions smoothly and continuously, preventing potential drops or impacts and protecting the package from damage. Furthermore, auxiliary wheels are installed below the extension plate, pressing against the outer wall of the conveyor belt to provide support and tension, ensuring stable operation and preventing belt deviation.

[0048] The conveying mechanism 3 is equipped with position detectors at both ends. These detectors monitor the passage status of the packaging boxes at the inlet and outlet of the conveying mechanism in real time and feed this status back to the control system. The control system determines the operating status of the packaging boxes based on the monitoring signals and issues corresponding control commands such as start, stop, or alarm. This achieves real-time monitoring and precise control of the packaging box conveying process, which is a key foundation for the automated and intelligent operation of the equipment. It effectively prevents abnormal situations such as blockages, empty runs, or collisions, reduces downtime, and improves production efficiency and equipment operating safety.

[0049] In summary: The packaging box first enters the working area smoothly via the input conveyor belt and guide structure. At this point, the guide structure precisely guides the box into the feeding device, where it is initially positioned by a limiting rod. Subsequently, the lifting mechanism of the feeding device, with its clamping seats forming a lifting groove, stably and efficiently clamps and lifts the box from a low position to a preset high position. Then, the conveying mechanism receives the box under the push of its push plate, and the push plate is moved by the conveyor chain, thus quickly and smoothly transporting the box horizontally from the feeding device end to the discharge device end. Finally, the discharge device, also utilizing the lifting groove formed by the clamping seats of the lifting structure, safely and controllably lowers the box from the high position, and under the drive of the guide structure, outputs it to the subsequent process via an external output conveyor belt.

[0050] With the feeding device, conveying mechanism, and discharging device set on the main frame, the single horizontal direction is transformed into a three-dimensional mode of vertical rise-horizontal conveying-falling, which significantly reduces the horizontal length of the conveying production line. This equipment can achieve the same buffer area as traditional long straight conveying in a smaller footprint. Other processes can be carried out under the horizontal conveying with height, allowing workers sufficient room to move around without having to detour. Workers can directly pass under the conveying production line for inspection and maintenance, improving the efficiency of worker passage and the convenience of maintenance.

[0051] Secondly, an adjustment device is installed to adjust the width of the moving area, allowing the packaging box production line to adapt to the conveying of packaging boxes of different sizes, thus enhancing the versatility and flexibility of the production line. The guiding structure ensures a smooth transition of the packaging boxes and guarantees accurate positioning, therefore, it can be widely used.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-speed lifting machine for packaging boxes, characterized in that: It includes a main frame (1) and a feeding device and a discharging device symmetrically distributed on both sides of the main frame (1). The feeding device and the discharging device are connected by a conveying mechanism (3). The packaging box (6) is input via the input conveyor belt (10) and is lifted into the conveying mechanism (3) by the feeding device. The conveying mechanism (3) transports the packaging box (6) to the discharging device. The packaging box (6) is lowered by the discharging device and output via the output conveyor belt (11), thereby realizing the rapid transport of the packaging box (6). The feeding device and the discharging device both include at least two lifting structures (2), with a gap between the two lifting structures (2) to form an active area (13). A guide structure (5) is installed at the lower end of the active area (13) and is connected to the input conveyor belt (10) and the output conveyor belt (11). An adjustment device is installed on one side of the two lifting structures (2) to adjust the width of the active area (13). The lifting structure (2) includes two lifting chains (21), with a drive sprocket (22) mounted on the upper end of the lifting chain (21) and a driven sprocket (23) mounted on the lower end of the lifting chain (21). The main shaft (251) of the lifting drive motor (25) is connected to the shaft of the drive sprocket (22). The lifting structure (2) also includes several clamps (24) set on the outside of the two lifting chains (21). The clamps (24) on opposite sides of the two lifting structures (2) form a lifting groove, and the packaging box (6) is conveyed to the lifting groove for rising or falling. The conveying mechanism (3) includes a conveying platform (31) installed on the upper end of the main frame (1). The inlet end of the conveying platform (31) is connected to a feeding device, and the outlet end of the conveying platform (31) is connected to a discharging device. The conveying mechanism (3) also includes a conveying chain (32) located above the conveying platform (31) and several push plates (33) installed on the conveying chain (32). The push plates (33) extend toward the end of the conveying platform (31). The conveying drive motor (34) drives the conveying chain (32) to rotate, and pushes the packaging box (6) to move through the push plates (33).

2. The high-speed lifting machine for packaging boxes according to claim 1, characterized in that: The clamp (24) includes a side plate (241) and a bottom plate (242). The side plate (241) and the bottom plate (242) are arranged in an L-shape. The bottom plate (242) is installed and fixed to the lifting chain (21) through a connecting seat (26).

3. The high-speed lifting machine for packaging boxes according to claim 1, characterized in that: The conveyor (31) is provided with baffles (35) on both sides. The baffles (35) and the conveyor (31) together form a guide groove, which restricts the packaging box (6) to be conveyed in the guide groove.

4. The high-speed lifting machine for packaging boxes according to claim 1, characterized in that: The pusher plate (33) is distributed at equal intervals along the conveyor chain (32). The upper end of the pusher plate (33) is connected to the conveyor chain (32) through the mounting base (332), and the lower end has connecting plates (331) protruding on both sides. The packaging box (6) is attached to the connecting plate (331).

5. The high-speed lifting machine for packaging boxes according to claim 1, characterized in that: The adjustment device includes a transverse slider (41) mounted on the main frame (1) and a transverse slide rail (42) connected to the outside of the lifting structure (2). The transverse slide rail (42) clamps the transverse slider (41) inside it and moves laterally along the transverse slider (41). There are two transverse sliders (41) distributed along the axial direction of the main frame (1). The adjustment device also includes a synchronous chain (43) and its drive handle (44) located on one side of the transverse slider (41).

6. The high-speed lifting machine for packaging boxes according to claim 5, characterized in that: The adjustment device further includes a first lead screw (45) and a second lead screw (46) installed on the transverse slider (41), and transmission nuts (47) respectively fitted on the first lead screw (45) and the second lead screw (46). The first lead screw (45) and the second lead screw (46) are connected as one unit by a locking seat (48). The thread direction of the first lead screw (45) is opposite to that of the thread direction of the second lead screw (46). One side of the transmission nut (47) is connected to the transverse slide rail (42). The other end of the first lead screw (45) is connected to a drive sprocket (491) and a driven sprocket (492). A synchronous chain (43) loops around the drive sprocket (491) and the driven sprocket (492) within it. The drive handle (44) is connected to the drive sprocket (491).

7. The high-speed lifting machine for packaging boxes according to claim 1, characterized in that: A limiting rod (14) is installed in the activity area (13), and one side of the limiting rod (14) is fixedly connected to the main frame (1); the packaging box (6) is transported to the activity area (13) and locked on the other side of the limiting rod (14).

8. The high-speed lifting machine for packaging boxes according to claim 1, characterized in that: The material guiding structure (5) includes an extension plate (51) and a conveyor belt (52) fitted inside the extension plate (51). The extension plate (51) extends toward the active area (13) and passes through the active area (13) to communicate with the input conveyor belt (10) and the output conveyor belt (11). The material guiding structure (5) also includes a drive wheel (53) located below the extension plate (51). The main shaft of the material guiding drive motor (55) is connected to the shaft of the drive wheel (53). The conveyor belt (52) is fitted outside the drive wheel (53). An auxiliary wheel (54) is also provided below the extension plate (51). The auxiliary wheel (54) presses against the outer wall of the conveyor belt (52).

9. The high-speed lifting machine for packaging boxes according to claim 1, characterized in that: The conveying mechanism (3) is equipped with position detectors at both ends.

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