Packaging box horizontal wrapping and vertical packaging conveying mechanism and packaging box tray loading machine

Abstract

This utility model discloses a horizontal-to-vertical packaging box conveying mechanism and a packaging box palletizing machine, including a first conveyor belt, a turning channel, and a second conveyor belt. The output end of the first conveyor belt is connected to the input end of the turning channel, and the output end of the turning channel is connected to the input end of the second conveyor belt. The turning channel extends in an arc direction from the input end to the output end, and the central angle of the arc is 90 degrees. The first conveyor belt is horizontally arranged and tangent to the input end of the turning channel. The second conveyor belt is horizontally arranged and perpendicular to the tangent of the output end of the turning channel. The horizontal height of the first conveyor belt is greater than the horizontal height of the second conveyor belt. This utility model can convert packaging boxes from horizontal to vertical packaging and palletize them, with a simple structure and high efficiency.

Description

Technical Field

[0001] This utility model relates to a packaging box tray loading machine, and more particularly to a packaging box horizontal-to-vertical conveying mechanism. Background Technology

[0002] In existing small packaging tray mechanisms, the design for converting small packages from horizontal to vertical packaging uses a mechanical gripper-type flipping mechanism. This structure is complex and has a long cycle time. Small packaging box devices use single-row loading, often requiring multiple loadings per box, affecting the overall production rhythm and negatively impacting the reliability of the equipment, increasing the potential for malfunctions. Given the current situation, it is necessary to invent a fully automated device with a simple structure that can quickly convert horizontal to vertical packaging and pack small packages into boxes. Utility Model Content

[0003] The purpose of this utility model is to provide a simple and efficient packaging box conveying mechanism that can convert packaging boxes from horizontal to vertical packaging.

[0004] Another objective of this invention is to provide a packaging box tray packing machine that can convert horizontal packaging boxes into vertical packaging boxes and pack them onto trays, which has a simple structure and high efficiency.

[0005] To achieve the above objectives, the packaging box horizontal-to-vertical conveying mechanism provided by this utility model includes a first conveyor belt, a turning channel, and a second conveyor belt. The output end of the first conveyor belt is connected to the input end of the turning channel, and the output end of the turning channel is connected to the input end of the second conveyor belt. The turning channel extends in an arc direction from the input end to the output end, and the central angle of the arc is 90 degrees. The first conveyor belt is horizontally arranged and tangent to the input end of the turning channel. The second conveyor belt is horizontally arranged and perpendicular to the tangent of the output end of the turning channel. The horizontal height of the first conveyor belt is greater than the horizontal height of the second conveyor belt.

[0006] This invention features a turning channel between a first and a second conveyor belt, extending in an arc from the input to the output with a central angle of 90 degrees. The first conveyor belt is horizontally positioned and tangent to the input of the turning channel, while the second conveyor belt is horizontally positioned and perpendicular to the tangent at the output of the turning channel. Furthermore, the horizontal height of the first conveyor belt is significantly greater than that of the second conveyor belt. Therefore, after the first conveyor belt transports the packaging box to the turning channel, the box automatically slides down the arc under gravity within the channel, flipping from a horizontal to a vertical position and being output. Thus, this invention's horizontal-to-vertical packaging box conveying mechanism can convert packaging boxes from horizontal to vertical without requiring a robotic arm or power-driven flipping mechanism. The structure is very simple, and the boxes can be continuously flipped during continuous input, resulting in high flipping efficiency and significantly improved production efficiency.

[0007] Preferably, the input end of the turning channel extends horizontally into a guide channel toward the first conveyor belt, and the guide channel engages with the first conveyor belt. This allows the guide channel to guide the packaging box, enabling the packaging box to be smoothly transferred to the turning channel.

[0008] Preferably, the horizontal-to-vertical packaging box conveying mechanism further includes a connecting mechanism, which is disposed between the first conveyor belt and the input end of the turning channel and above the latter two, to guide the horizontally oriented packaging box into the turning channel. By using the connecting mechanism and the first conveyor belt to constrain the packaging box, it allows the packaging box to enter the turning channel more stably and accurately, improving the stability of the packaging box conveying.

[0009] Preferably, the connecting mechanism includes a first roller, a second roller, and a belt. The first roller is positioned above the first conveyor belt, the second roller is positioned above the input end of the turning channel, and the belt is wound between the first roller and the second roller. By using the belt to hold the packaging box, the packaging box can be positioned, and the belt can move with the packaging box, thus effectively improving the stability of the packaging box conveying.

[0010] Preferably, the horizontal-to-vertical packaging box conveying mechanism further includes a pushing device, which is disposed between the output end of the turning channel and the input end of the second conveyor belt to push the vertically oriented packaging box from the output end of the turning channel onto the second conveyor belt. Since the packaging box reaches the second conveyor belt when it slides out of the turning channel, and the conveying direction of the second conveyor belt is the same as the moving direction of the packaging box, by providing the pushing device, the packaging box can be pushed out of the turning channel and moved along the direction of the second conveyor belt. This allows the packaging box to smoothly run on the second conveyor belt after it has flipped from horizontal to vertical, ensuring stable vertical packaging conveying.

[0011] Specifically, the jacking device includes a servo motor, a crank, a connecting rod, a push block, and a sleeve. The upper middle part of the sleeve is connected to the output end of the steering channel, the input end of the second conveyor belt is connected to one end of the sleeve, and the push block is slidably fitted inside the other end of the sleeve. The output end of the servo motor is connected to the crank, the other end of the crank is pivotally connected to one end of the connecting rod, and the other end of the connecting rod is pivotally connected to the push block.

[0012] A packaging box palletizing machine includes a first pushing device, a palletizing device, a lifting drive mechanism, and a packaging box horizontal-to-vertical conveying mechanism. The first pushing device and the palletizing device are respectively disposed on opposite sides of a second conveyor belt. The output end of the first pushing device extends and retracts along a conveying direction perpendicular to the second conveyor belt to push the packaging boxes on the second conveyor belt into the palletizing device. The lifting drive mechanism drives the palletizing device to move by one palletizing height.

[0013] Preferably, the packaging box palletizing machine further includes a layer lifting mechanism and a second pushing device. The layer lifting mechanism is disposed between the second conveyor belt and the pallet to collect the packaging boxes layer by layer. The first pushing device pushes the packaging boxes on the second conveyor belt to the layer lifting mechanism. The second pushing device is disposed on the side of the layer lifting mechanism opposite to the pallet to push the packaging boxes into the pallet. The layer lifting mechanism and the second pushing device allow multiple packaging boxes to enter the pallet at once, thereby improving palletizing efficiency.

[0014] Specifically, the packaging box tray loading machine also includes a compression mechanism, which is disposed between the layer lifting mechanism and the tray loading mechanism to compress the packaging boxes before loading them onto the tray. Because the produced packaging boxes expand slightly larger than normal due to heat, they tend to shrink in volume after cooling within the tray. This can cause gaps within the tray, preventing the packaging boxes from being stably contained within it. Therefore, by incorporating the compression mechanism, the volume of the packaging boxes is compressed before loading onto the tray, thus preventing gaps from forming inside the tray due to volume shrinkage and ensuring the packaging boxes are stably contained within the tray.

[0015] Specifically, the tiered lifting mechanism includes a tiered receiving box, a pusher plate, and a lifting assembly. The tiered receiving box has a first opening and a second opening, the second opening being a through-type structure on both sides. The pusher plate is slidably disposed within the tiered receiving box to carry the packaging boxes. The lifting assembly is disposed within the tiered receiving box and connected to the pusher plate to drive the pusher plate to move. A first pushing device extends and retracts through the first opening to push the packaging boxes from the second conveyor belt into the tiered receiving box; a second pushing device extends and retracts through the second opening to push the packaging boxes within the tiered receiving box into the tray. By setting up the tiered lifting mechanism, packaging boxes can be temporarily buffered, allowing them to be trayed all at once after a certain amount of packaging boxes have been collected. This effectively improves traying efficiency, reduces the operating frequency of some mechanisms, and saves energy. Attached Figure Description

[0016] Figure 1 This is a perspective view of the packaging box tray filling machine of this utility model.

[0017] Figure 2 This is a perspective view of the horizontal-to-vertical conveying mechanism of the packaging box tray loading machine of this utility model.

[0018] Figure 3 This is a side view of the packaging box horizontal to vertical conveying mechanism of this utility model.

[0019] Figure 4 This is a structural diagram of the pushing device of the horizontal-to-vertical packaging box conveying mechanism of this utility model.

[0020] Figure 5 This is a structural diagram of the first pushing device of the packaging box tray filling machine of this utility model.

[0021] Figure 6 This is a structural diagram of the layer lifting mechanism and the second pushing device of the packaging box tray filling machine of this utility model.

[0022] Figure 7 This is a structural diagram of the layer lifting mechanism and the second pushing device of the second embodiment of the packaging box tray filling machine of this utility model.

[0023] Figure 8 This is a structural diagram of the layer lifting mechanism and the second pushing device of the third embodiment of the packaging box tray filling machine of this utility model.

[0024] Figure 9 This is a structural diagram of the layer lifting mechanism of the third embodiment of the packaging box tray filling machine of this utility model.

[0025] Figure 10 This is another structural diagram of the layer lifting mechanism of the third embodiment of the packaging box tray filling machine of this utility model.

[0026] Figure 11 This is an exploded view of the layer lifting mechanism of the third embodiment of the packaging box tray filling machine of this utility model. Detailed Implementation

[0027] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0028] like Figures 1 to 3 As shown, the packaging box tray-loading machine 100 of this utility model includes a horizontal-to-vertical packaging box conveying mechanism 1, a first pushing device 2, a tray-loading device 3, and a lifting drive mechanism (not shown in the figure). The horizontal-to-vertical packaging box conveying mechanism 1 is used to flip the packaging box from a horizontal state to an vertical state. The horizontal-to-vertical packaging box conveying mechanism 1 includes a first conveyor belt 11, a turning channel 12, and a second conveyor belt 13. The output end of the first conveyor belt 11 is connected to the input end of the turning channel 12, and the output end of the turning channel 12 is connected to the input end of the second conveyor belt 13. The turning channel 12 extends in an arc direction from the input end to the output end, and the central angle of the arc is 90 degrees. The first conveyor belt 11 is horizontally arranged and tangent to the input end of the turning channel 12; the second conveyor belt 13 is horizontally arranged and perpendicular to the tangent of the output end of the turning channel 12. The horizontal height of the first conveyor belt 11 is greater than the horizontal height of the second conveyor belt 13. The first pushing device 2 and the tray 3 are respectively disposed on opposite sides of the second conveyor belt 13. The output end of the first pushing device 2 extends and retracts along the conveying direction perpendicular to the second conveyor belt 13 to push the packaging box of the second conveyor belt 13 into the tray 3. The lifting drive mechanism can drive the tray 3 to move one tray height after the packaging box enters.

[0029] Please see again Figure 3The input end of the turning channel 12 extends horizontally towards the first conveyor belt 11, forming a guide channel 121 that connects with the first conveyor belt 11. This allows the guide channel 121 to guide the packaging box, enabling it to be smoothly transferred to the turning channel 12. The horizontal-to-vertical packaging box conveying mechanism 1 also includes a connecting mechanism 14, which is positioned between the first conveyor belt 11 and the input end of the turning channel 12, and above both, to guide the horizontally oriented packaging box into the turning channel 12. By using the connecting mechanism 14 and the first conveyor belt 11 to constrain the packaging box, it allows the box to enter the turning channel 12 more stably and accurately, improving the stability of the packaging box conveying. Specifically, the connecting mechanism 14 includes a first roller 141, a second roller 142, and a belt 143. The first roller 141 is positioned above the first conveyor belt 11, the second roller 142 is positioned above the input end of the turning channel 12, and the belt 143 is wound between the first roller 141 and the second roller 142. By using the belt 143 to clamp the packaging box, the packaging box can be positioned, and the belt 143 can also move with the packaging box, thus effectively improving the stability of the packaging box conveying.

[0030] Please see Figure 3 and Figure 4 The packaging box horizontal-to-vertical conveying mechanism 1 further includes a pushing device 15, which is disposed between the output end of the turning channel 12 and the input end of the second conveyor belt 13 to push the vertically oriented packaging box from the output end of the turning channel 12 onto the second conveyor belt 13. Since the packaging box reaches the second conveyor belt 13 when it slides out of the turning channel 12, and the conveying direction of the second conveyor belt is the same as the moving direction of the packaging box, by providing the pushing device 15, the packaging box can be pushed out of the turning channel 12 and moved along the direction of the second conveyor belt 13. This ensures that after the packaging box is flipped from horizontal to vertical, it can smoothly run on the second conveyor belt 13, guaranteeing the stability of the vertical conveying. Specifically, the jacking device 15 includes a servo motor 151, a crank 152, a connecting rod 153, a push block 154, and a sleeve 155. The upper middle part of the sleeve 155 is connected to the output end of the steering channel 12, and the input end of the second conveyor belt 13 is connected to one end of the sleeve 155. The push block 154 is slidably fitted inside the other end of the sleeve 155. The output end of the servo motor 151 is connected to the crank 152, and the other end of the crank 152 is pivotally connected to one end of the connecting rod 153. The other end of the connecting rod 153 is pivotally connected to the push block 154.

[0031] Please see againFigure 3 and Figure 4 The first conveyor belt 11 is a motor-driven belt, and the packaging box is horizontally supported on the belt of the first conveyor belt 11 and moves with the belt. The second conveyor belt 13 can also be a motor-driven belt. When the upright packaging box enters the second conveyor belt 13, the packaging box can continue to move forward with the belt. Alternatively, the second conveyor belt 13 can be set as a horizontal translation channel. The pushing force of the pushing device 15 pushes the packaging box from the output end of the turning channel 12 to the second conveyor belt 13, which allows the packaging box on the second conveyor belt 13 to move forward step by step.

[0032] Combination Figure 1 Please see Figure 5 The first pushing device 2 includes a first bracket 21, a first cylinder 22, a first push plate 23, and a first guide rod 24. The two first guide rods 24 are slidably mounted on the guide sleeves 211 of the first bracket 21. The two ends of the first push plate 23 are respectively connected to the two first guide rods 24. The first cylinder 22 is mounted on the first bracket 21, and its output end is connected to the first push plate 23, allowing the first push plate 23 to move. The first push plate 23 is located on one side of the second conveyor belt 13 to push vertically arranged packaging boxes on the second conveyor belt 13. A baffle 24 is provided at one end of the first push plate 23 near the turning channel 12. The baffle 24 can block other packaging boxes when the first push plate 23 pushes the packaging box, preventing other packaging boxes from continuing to move and affecting the first push plate 23.

[0033] Combination Figure 1 Please see Figure 6The packaging box loading machine 100 further includes a layer lifting mechanism 5 and a second pushing device 6. The layer lifting mechanism 5 is disposed between the second conveyor belt 13 and the loading tray 3 to collect the packaging boxes layer by layer. The first pushing device 2 pushes the packaging boxes on the second conveyor belt 13 to the layer lifting mechanism 5. The second pushing device 6 is disposed on the side of the layer lifting mechanism 5 away from the loading tray 3 to push the packaging boxes into the loading tray 3. The layer lifting mechanism 5 and the second pushing device 6 allow multiple packaging boxes to enter the loading tray 3 at once, thereby improving the efficiency of loading the tray 3. The structure of the second pushing device 6 is the same as that of the first pushing device 2. The second pushing device 6 includes a second bracket, a second cylinder, a second push plate, and a second guide rod. The two second guide rods are slidably disposed on the guide sleeve of the second bracket. The two ends of the second push plate are respectively connected to the two second guide rods. The second cylinder is disposed on the second bracket and its output end is connected to the second push plate, so that the second push plate is movable. The second pusher plate is located on one side of the layer lifting mechanism 5 to push the packaging boxes arranged on the layer lifting mechanism 5 into the tray 3.

[0034] Combination Figure 1 Please see again. Figure 6 Specifically, the packaging box loading machine 100 also includes a compression mechanism 7, which is disposed between the layer lifting mechanism 5 and the loading tray 3 to compress the packaging boxes before loading them onto the tray 3. Because the produced packaging boxes expand slightly larger than normal due to heat, they tend to shrink in volume after cooling within the loading tray 3. This can cause gaps within the loading tray 3, preventing the packaging boxes from being stably contained within it. Therefore, by setting up the compression mechanism 7, the volume of the packaging boxes is compressed before loading them onto the tray 3, thus preventing gaps from appearing inside the loading tray 3 due to volume shrinkage and ensuring the packaging boxes are stably contained within the loading tray 3. Specifically, the compression mechanism 7 includes a compression cylinder 71 and a pressure plate 72. The compression cylinder 71 pushes the pressure plate 72, causing the pressure plate 72 to compress the packaging boxes from the side. More specifically, the compression cylinder 71 and the pressure plate 72 are respectively arranged on both sides of the packaging box. They can be operated in two ways: one is to push the pressure plate 72 at the same time to compress the material towards the middle; the other is to keep one side of the pressure plate 72 stationary while the other side of the pressure plate 72 compresses towards the stationary side of the pressure plate 72.

[0035] Please see again Figure 6Specifically, the tiered lifting mechanism 5 includes a tiered receiving box 51, a pusher plate 52, and a lifting assembly 53. The tiered receiving box 51 has a first opening 511 and a second opening 512, with the second opening 512 having a through-type structure on both sides. The pusher plate 52 is slidably disposed within the tiered receiving box 51 to carry the packaging boxes. The lifting assembly 53 is disposed within the tiered receiving box 51 and connected to the pusher plate 52 to drive the pusher plate 52 to move. The first pushing device 2 extends and retracts within the first opening 511 to push the packaging boxes from the second conveyor belt 13 into the tiered receiving box 51. The second pushing device 6 extends and retracts within the second opening 512 to push the packaging boxes within the tiered receiving box 51 into the loading tray 3. By setting up the tiered lifting mechanism 5, packaging boxes can be temporarily buffered, allowing them to be loaded onto the loading tray 3 all at once after a certain number of packaging boxes have been collected. This effectively improves the efficiency of the loading tray 3, reduces the operating frequency of some mechanisms, and saves energy. Furthermore, the lifting assembly 53 can be a screw and nut mechanism disposed on both sides of the hierarchical accommodating box 51 to drive the push plate 52 to rise or fall. The lifting assembly 53 can also be a lifting assembly 531 disposed at the bottom of the hierarchical accommodating box 51 and a side support assembly 532 disposed on one side of the hierarchical accommodating box 51. When the packaging boxes are stacked from top to bottom, the screw and nut mechanism drives the push plate 52 to move downwards, thus achieving stacking. When the packaging boxes are stacked from bottom to top, the lifting assembly 531 lifts the packaging boxes, and then the side support assembly 532 lifts the lifted packaging boxes, thereby leaving space below to accommodate newly entering packaging boxes, achieving continuous lifting and stacking. The lifting assembly 531 can lift a toothed lifting plate 531b by extending and retracting a cylinder 531a. The side support assembly 532 can push a toothed bottom plate 532b into the hierarchical accommodating box 51 by extending and retracting a cylinder 532a to lift the packaging box. The toothed lifting plate 531b and the toothed bottom plate 532b are respectively provided with gear teeth on their opposite sides. When the toothed lifting plate 531b and the toothed bottom plate 532b are at the same height, their gear teeth mesh with each other, so that the movement of the toothed lifting plate 531b and the toothed bottom plate 532b will not affect each other.

[0036] Combination Figures 1 to 6As shown, in this embodiment, the tiered lifting mechanism 5 uses a single-row, multiple-tray loading method. Specifically, the first pushing device 2 is located on the lower side of the tiered lifting mechanism 5, the second pushing device 6 is located on the upper side of the tiered lifting mechanism 5, and the tray 3 is located on the upper side of the tiered lifting mechanism 5 opposite to the second pushing device 6. When the first pushing device 2 pushes a row of upright packaging boxes into the tiered lifting mechanism 5, the lifting component 53 of the tiered lifting mechanism 5 drives the row of upright packaging boxes to rise one tray height, which is the height of one upright packaging box. This continues until the packaging boxes in the tiered lifting mechanism 5 rise to the height of the second pushing device 6. At this point, the second pushing device 6 pushes the top row of packaging boxes into the compression mechanism 7, which compresses the row of packaging boxes. Finally, the second pushing device 6 pushes the packaging boxes into the tray 3. After receiving a row of packaging boxes, the lifting drive mechanism drives the tray 3 to descend one upright packaging box height to await the next tray loading.

[0037] Please see Figure 7 In another embodiment, the tiered lifting mechanism 5' can be implemented using a multi-row, single-down stacking tray method. Specifically, the first pushing device 2 is located on the upper side of the tiered lifting mechanism 5', and the second pushing device 6' is located on the lower side of the tiered receiving box 51' of the tiered lifting mechanism 5'. The height of the push plate 52 of the second pushing device 6' is greater than the height of a single vertical packaging box, so as to simultaneously push at least two layers of packaging boxes. The tray 3 is located on the lower side of the tiered lifting mechanism 5' opposite to the second pushing device 6'. After the first pushing device 2 pushes a row of vertical packaging boxes into the tiered lifting mechanism 5', the push plate of the tiered lifting mechanism 5' descends by one tray height under the drive of the lifting assembly 53. The tray height is equal to the total height of the multiple layers of vertical packaging boxes being trayed. This process continues until the packaging boxes in the tiered lifting mechanism 5' have reached a certain quantity. Then, the pusher plate 52 of the tiered lifting mechanism 5' moves downwards, carrying these packaging boxes onto the second pushing device 6'. The second pushing device 6' pushes these packaging boxes onto the compression mechanism 7' in one go, compresses them, and then pushes them into the tray 3. After receiving multiple rows of packaging boxes, the lifting drive mechanism drives the tray 3 to descend one tray height to await the next tray loading.

[0038] Please see Figures 8 to 11In another embodiment, the tiered lifting mechanism 5'' can be implemented using a multi-row, single-up stacking method. The first pushing device 2 is located on the lower side of the tiered receiving box 51'' of the tiered lifting mechanism 5'', and the second pushing device 6'' is located on the upper side of the tiered lifting mechanism 5''. The height of the push plate 52'' of the second pushing device 6'' is greater than the height of a vertical packaging box, so as to simultaneously push at least two layers of packaging boxes. The tray 3 is located on the upper side of the tiered lifting mechanism 5'' opposite to the second pushing device 6''. When the first pushing device 2 pushes a row of upright packaging boxes into the layer lifting mechanism 5'', the lifting component 53 (i.e., the top lifting component 531) and the side support component 532 of the layer lifting mechanism 5 interact to drive the row of upright packaging boxes to rise one tray height, which is the height of one upright packaging box. This continues until the packaging boxes in the layer lifting mechanism 5'' rise to the height of the second pushing device 6''. At this point, the second pushing device 6'' pushes the multi-layer packaging boxes into the compression mechanism 7'', which compresses the row of packaging boxes. Finally, the second pushing device 6'' pushes the packaging boxes into the tray 3. After receiving the multi-layer packaging boxes, the lifting drive mechanism drives the tray 3 to descend to the corresponding height of the multi-layer packaging boxes to await the next tray loading.

[0039] This invention features a turning channel 12 between a first conveyor belt 11 and a second conveyor belt 13. The turning channel 12 extends in an arc from the input to the output, with a central angle of 90 degrees. The first conveyor belt 11 is horizontally positioned and tangent to the input of the turning channel 12, while the second conveyor belt 13 is horizontally positioned and perpendicular to the tangent at the output of the turning channel 12. Furthermore, the horizontal height of the first conveyor belt 11 is significantly greater than that of the second conveyor belt 13. Therefore, after the first conveyor belt 11 transports the packaging box to the turning channel 12, the packaging box automatically slides down the arc under the influence of gravity within the turning channel 12. During this descent, it flips from a horizontal to a vertical position and is output. Thus, this invention can transform a horizontally packaged box into a vertically packaged box without the need for a robotic arm or a powered flipping mechanism. The structure is very simple, and the boxes can be continuously flipped during continuous input, resulting in high flipping efficiency and significantly improving production efficiency.

[0040] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A packaging box horizontal-to-vertical conveying mechanism, characterized in that: The system includes a first conveyor belt, a steering channel, and a second conveyor belt. The output end of the first conveyor belt is connected to the input end of the steering channel, and the output end of the steering channel is connected to the input end of the second conveyor belt. The steering channel extends in an arc direction from the input end to the output end, and the central angle of the arc is 90 degrees. The first conveyor belt is horizontally positioned and tangent to the input end of the steering channel. The second conveyor belt is horizontally positioned and perpendicular to the tangent at the output end of the steering channel. The horizontal height of the first conveyor belt is greater than the horizontal height of the second conveyor belt.

2. The packaging box horizontal-to-vertical conveying mechanism according to claim 1, characterized in that: The input end of the steering channel extends horizontally into a guide channel toward the first conveyor belt, and the guide channel is connected to the first conveyor belt.

3. The packaging box horizontal-to-vertical conveying mechanism according to claim 1, characterized in that: The horizontal-to-vertical packaging box conveying mechanism also includes a connecting mechanism, which is located between the first conveyor belt and the input end of the turning channel and above the latter two, to guide the horizontally oriented packaging box into the turning channel.

4. The packaging box horizontal-to-vertical conveying mechanism according to claim 3, characterized in that: The connecting mechanism includes a first roller, a second roller, and a belt. The first roller is positioned above the first conveyor belt, the second roller is positioned above the input end of the steering channel, and the belt is wound between the first roller and the second roller.

5. The packaging box horizontal-to-vertical conveying mechanism according to claim 1, characterized in that: The packaging box horizontal to vertical conveying mechanism also includes a pushing device, which is located between the output end of the turning channel and the input end of the second conveyor belt to push the vertically oriented packaging box from the output end of the turning channel to the second conveyor belt.

6. The packaging box horizontal-to-vertical conveying mechanism according to claim 5, characterized in that: The jacking device includes a servo motor, a crank, a connecting rod, a push block, and a sleeve. The upper middle part of the sleeve is connected to the output end of the steering channel, and the input end of the second conveyor belt is connected to one end of the sleeve. The push block is slidably fitted inside the other end of the sleeve. The output end of the servo motor is connected to the crank, the other end of the crank is pivotally connected to one end of the connecting rod, and the other end of the connecting rod is pivotally connected to the push block.

7. A packaging box tray filling machine, characterized in that: The device includes a first pushing device, a tray, a lifting drive mechanism, and a packaging box horizontal to vertical conveying mechanism as described in any one of claims 1 to 6. The first pushing device and the tray are respectively disposed on opposite sides of the second conveyor belt. The output end of the first pushing device extends and retracts along the conveying direction perpendicular to the second conveyor belt to push the packaging box on the second conveyor belt into the tray. The lifting drive mechanism drives the tray to move by one tray height.

8. The packaging box tray filling machine according to claim 7, characterized in that: The packaging box loading machine also includes a layer lifting mechanism and a second pushing device. The layer lifting mechanism is located between the second conveyor belt and the loading tray to collect the packaging boxes layer by layer. The first pushing device pushes the packaging boxes on the second conveyor belt to the layer lifting mechanism. The second pushing device is located on the side of the layer lifting mechanism opposite to the tray, so as to push the packaging box into the tray.

9. The packaging box tray filling machine according to claim 8, characterized in that: The packaging box loading machine also includes a compression mechanism, which is located between the layer lifting mechanism and the loading mechanism to compress the packaging boxes before loading them onto the tray.

10. The packaging box tray filling machine according to claim 8, characterized in that: The tiered lifting mechanism includes a tiered receiving box, a pusher plate, and a lifting assembly. The tiered receiving box has a first opening and a second opening. The second opening has a through-type structure on both sides. The pusher plate is slidably disposed in the tiered receiving box to carry the packaging box. The lifting assembly is disposed in the tiered receiving box and connected to the pusher plate to drive the pusher plate to move. The first pushing device extends and retracts in the first opening to push the packaging box of the second conveyor belt into the tiered receiving box. The second pushing device extends and retracts into the second opening to push the packaging box inside the tiered receiving box into the tray.

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