Packaging box conveying device

Abstract

The utility model discloses a packaging box conveying device. The packaging box conveying device comprises a first conveying mechanism, a second conveying mechanism and a lifting conveying mechanism. By means of the stacking device, the same packaging box is subjected to multiple times of sheet loading in the mode that the stacking device stays at the different boxing stations for a short time till boxing of the packaging box is completed at the last boxing station, and then the packaging box full of stacked sheets is conveyed to the second conveying mechanism through the lifting conveying mechanism; then the second conveying mechanism is used for conveying the packaging box filled with the laminations to the next procedure, at the moment, the first conveying mechanism is not affected to continuously convey the packaging box which is not packed to the corresponding packing station for packing, and meanwhile the lifting conveying mechanism returns to the output end of the first conveying mechanism to receive the packaging box filled with the laminations at any time; therefore, the packaging boxes can be continuously conveyed without waiting for all the packaging boxes to be full of the laminations, and the boxing efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of silicon wafer manufacturing technology, and in particular to a packaging box conveying device. Background Technology

[0002] After the silicon wafers are sorted and tested by the sorting machine, the qualified wafers are collected one by one and stacked in the material box to form a stack. The stacked wafers then need to be placed in a packaging box for transportation.

[0003] To save manpower, empty boxes are typically transported to the packing station via a conveyor line. Once the boxes are filled with stacked pieces, they are then transported to the unloading station via the same conveyor line. Existing conveyor lines are usually linear, which simplifies the process. However, if multiple packing stations are set up on the conveyor line to perform packing simultaneously, the line needs to transport multiple boxes corresponding to each packing station at a time, and then deliver each box sequentially to its respective packing station. This complicates the conveyor line operation and requires waiting for each packing station to be filled with stacked pieces before continuing to transport boxes, resulting in lower packing efficiency. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a packaging box conveying device to solve the problem of low packing efficiency in the prior art, which requires waiting for each packing station to be fully loaded with stacked boxes before continuing to convey boxes.

[0005] This application provides a packaging box conveying device, including a first conveying mechanism, a second conveying mechanism, and a lifting conveying mechanism, wherein:

[0006] The first conveying mechanism is configured to receive and convey empty packaging boxes to the packing station for stacking and packing, and to convey the packed packaging boxes to the lifting conveying mechanism.

[0007] The lifting conveying mechanism includes a lifting platform configured to carry and convey a package filled with stacked pieces. The lifting conveying mechanism is configured to drive the lifting platform to reciprocate between the output end of a first conveying mechanism and the input end of a second conveying mechanism to convey the package filled with stacked pieces from the first conveying mechanism to the second conveying mechanism.

[0008] The second conveying mechanism is located above or below the first conveying mechanism. The second conveying mechanism is configured to receive the packaging boxes sent by the lifting conveying mechanism and transport the packaging boxes to the next process.

[0009] Based on the above-described embodiment of the packaging box conveying device, the same packaging box is loaded multiple times by briefly stopping at different packing stations until the last packing station completes the packing. Then, the lifting conveyor mechanism transports the packaging box filled with stacked pieces to the second conveyor mechanism, which then transports it to the next process. At this time, the first conveyor mechanism continues to transport unpacked packaging boxes to the corresponding packing station for packing. Meanwhile, the lifting conveyor mechanism returns to the output end of the first conveyor mechanism to receive packaging boxes filled with stacked pieces at any time. Therefore, it is not necessary to wait for all packaging boxes to be filled with stacked pieces before continuing to transport packaging boxes, thereby improving packing efficiency.

[0010] Optionally, the first conveying mechanism includes at least two first conveying lines arranged along a first direction, with the conveying directions of two adjacent first conveying lines being opposite and both perpendicular to the first direction, and a first derailment conveying line provided between two adjacent first conveying lines, the first derailment conveying line being configured to convey the packaging box at the output end of the previous first conveying line to the input end of the next first conveying line.

[0011] Furthermore, in one embodiment of the packaging box conveying device, by arranging the first conveying direction along the first direction, and the conveying directions of adjacent first conveying lines being opposite and perpendicular to the first direction, the arrangement of the first conveying lines is made compact, and the packaging boxes located on the conveying line can be individually conveyed by controlling a single conveying line. Adjacent first conveying lines are transferred through a first lane-changing conveying line to improve the conveying efficiency of the packaging boxes.

[0012] Optionally, the first conveyor line is a roller conveyor line. The first derailment conveyor line includes several rows of first rotating wheels and a first lifting drive. Each row of first rotating wheels is arranged at intervals along the length of the rollers of the first conveyor line. Each row of first rotating wheels is located in the gap between two adjacent rollers of the previous first conveyor line. The first lifting drive is configured to drive several rows of first rotating wheels to lift and rotate synchronously, so as to lift the packaging boxes on the previous first conveyor line and convey them to the next first conveyor line.

[0013] Furthermore, in one embodiment of the packaging box conveying device, by setting the first conveying line as a roller conveying line, the main friction mode between the packaging box and the first conveying line can be rolling friction, thereby reducing the wear of the packaging box during the conveying process; and by driving several rows of first rotating wheels to rise and rotate synchronously through the first lifting drive component, thereby driving the packaging box to gradually turn, so that the placement direction of the packaging box is parallel to the placement direction of entering the first conveying mechanism, which facilitates the subsequent pushing of stacked pieces into the packaging box.

[0014] Optionally, the second conveying mechanism includes a docking conveyor line and a second conveyor line, which have different conveying directions. The docking conveyor line is configured to receive packaging boxes from the lifting platform and convey the received packaging boxes to the second conveyor line connected to the docking conveyor line. The second conveyor line is configured to convey the received packaging boxes to the next process.

[0015] Furthermore, in one embodiment of the packaging box conveying device, the packaging box is received by the lifting platform through docking conveyor, so that the packaging box enters the second conveying mechanism, and then the packaging box is conveyed to the next process through the second conveyor line. By setting the conveying directions of the docking conveyor line and the second conveyor line to different directions, the space occupied by the docking conveyor line and the first conveyor line is made more compact.

[0016] Optionally, the lifting platform is equipped with a second derailment conveyor line and a third conveyor line. The second derailment conveyor line is configured to change the conveying direction of the packaging box so that the packaging box on the lifting platform enters the conveying surface of the docking conveyor line. The third conveyor line is configured to receive the packaging box conveyed by the first conveyor mechanism.

[0017] The second derailment conveyor line includes several rows of second rotating wheels and a second lifting drive. Each row of second rotating wheels is arranged at intervals along the length of the rollers of the third conveyor line. Each row of second rotating wheels is located in the gap between two adjacent rollers of the third conveyor line. The second lifting drive is configured to drive several rows of second rotating wheels to lift and rotate synchronously.

[0018] Furthermore, in one embodiment of the packaging box conveying device, a second lifting drive component drives several rows of second rotating wheels to rise and fall synchronously and rotate, thereby allowing the packaging box to directly change direction and enter the conveying surface of the docking conveyor line.

[0019] Optionally, the lifting conveyor mechanism includes a third conveyor line disposed on the lifting platform, the third conveyor line being configured to receive packaging boxes conveyed by the first conveyor mechanism.

[0020] Optionally, a limit plate is provided on the side of the lifting platform away from the first conveying mechanism, and the limit plate is configured to restrict the packaging box from sliding out of the lifting platform.

[0021] Furthermore, in one embodiment of the packaging box conveying device, a limiting plate is used to restrict the packaging box from sliding off the lifting platform, thereby preventing the packaging box from falling and causing damage to the silicon wafer.

[0022] Optionally, the docking conveyor line, the second conveyor line, and the third conveyor line can be roller conveyor lines.

[0023] Furthermore, in one embodiment of the packaging box conveying device, by setting the docking conveyor line, the second conveyor line, and the third conveyor line as roller conveyor lines, the main friction mode of the packaging box during the conveying process is rolling friction, so as to reduce the wear of the packaging box during the conveying process.

[0024] Optionally, the lifting and conveying mechanism includes a drive assembly and a vertically arranged support. The lifting platform is slidably connected to the support, and the drive end of the drive assembly is connected to the lifting platform to drive the lifting platform to move back and forth vertically between the output end of the first conveying mechanism and the input end of the second conveying mechanism.

[0025] Furthermore, in one embodiment of the packaging box conveying device, the lifting platform is slidably connected to the support frame to improve the stability and smoothness of the lifting platform's operation.

[0026] Optionally, the packaging box conveying device also includes an empty packaging box conveying line and a full packaging box conveying line. Multiple sets of the first conveying mechanism, the second conveying mechanism, and the lifting conveying mechanism are provided. The empty packaging box conveying line is configured to sequentially convey each empty packaging box to multiple sets of the first conveying mechanism. The full packaging box conveying line is configured to receive packaging boxes filled with stacked pieces from multiple sets of the second conveying mechanism and sequentially convey them to the next process.

[0027] Furthermore, in one embodiment of the packaging box conveying device, multiple empty packaging box conveying lines, multiple full packaging box conveying lines, and multiple sets of first conveying mechanisms, second conveying mechanisms, and lifting conveying mechanisms are coordinated to simultaneously pack and transfer multiple packaging boxes, thereby improving packing efficiency.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0029] The disclosure of this application will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are configured for illustrative purposes only and are not intended to limit the scope of protection of this application. Furthermore, similar numbers in the drawings are used to denote similar components, wherein:

[0030] Figure 1 This is a schematic diagram of the structure of a packaging box conveying device according to one embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the structure of a first conveyor line according to one embodiment of this application;

[0032] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0033] Figure 4 This is a schematic diagram of the structure of the second conveyor line according to one embodiment of this application;

[0034] Figure 5 This is a schematic diagram of the lifting and conveying mechanism according to one embodiment of this application;

[0035] Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. First conveying mechanism; 11. First conveying line; 12. First lane-changing conveying line; 121. First rotating wheel; 2. Second conveying mechanism; 21. Docking conveying line; 22. Second conveying line; 3. Lifting conveying mechanism; 31. Lifting platform; 311. Second lane-changing conveying line; 3111. Second rotating wheel; 312. Limiting plate; 32. Drive assembly; 321. Lifting drive component; 322. Pulley assembly; 33. Bracket; 331. Slider guide rail module; 34. Third conveying line; 4. Packaging box. Detailed Implementation

[0038] Some embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely configured to explain the technical principles of this application and are not intended to limit the scope of protection of this application.

[0039] As described in the background section, current conveyor systems for packaging boxes typically use a linear conveyor system. While this simplifies the conveyor line, if multiple packing stations are set up on the conveyor line to perform packing work simultaneously, the conveyor line needs to transport multiple boxes corresponding to the number of packing stations each time, and then send each box to the corresponding packing station in sequence. This results in a complex conveyor line operation procedure, and it is also necessary to wait for the boxes at each packing station to be fully stacked before continuing to transport boxes, which also leads to lower packing efficiency.

[0040] Therefore, this application creatively proposes a packaging box conveying device, which includes a first conveying mechanism, a second conveying mechanism, and a lifting conveying mechanism. When multiple packing stations need to perform packing work simultaneously, the first conveying mechanism first receives and conveys empty packaging boxes to the first packing station along the conveying direction of the first conveying mechanism for stacking and packing. After a short pause, the first conveying mechanism continues to receive and convey empty packaging boxes to the first packing station along the conveying direction of the first conveying mechanism, while the original packaging boxes enter the next packing station. After another short pause, the previous steps are repeated, so that the packaging boxes packed in the first station enter the last station. When each packaging station leaves after packing, the first fully loaded box is transported to a lifting platform, while the second box is simultaneously transported to the last packaging station. The lifting platform then moves the first fully loaded box to the input of the second conveyor mechanism, which then transports it to the next process. This process is repeated, allowing each fully loaded box to be directly transported to the next process without waiting for all boxes to be fully loaded, thus improving packing efficiency.

[0041] The present application will be described in detail below through specific embodiments.

[0042] Reference Figures 1 to 6 As shown, the packaging box 4 conveying device includes a first conveying mechanism 1, a second conveying mechanism 2, and a lifting conveying mechanism 3. The first conveying mechanism 1 is configured to receive and convey empty packaging boxes 4 to the packing station for stacking and packing, and to convey the packed packaging boxes 4 to the lifting conveying mechanism 3. The lifting conveying mechanism 3 includes a lifting platform 31, which is configured to carry and convey the packaging boxes 4 filled with stacked pieces. The lifting conveying mechanism 3 is configured to drive the lifting platform 31 to reciprocate between the output end of the first conveying mechanism 1 and the input end of the second conveying mechanism 2, so as to convey the packaging boxes 4 filled with stacked pieces from the first conveying mechanism 1 to the second conveying mechanism 2. The second conveying mechanism 2 is located above or below the first conveying mechanism 1, and is configured to receive the packaging boxes 4 sent by the lifting conveying mechanism 3 and convey the packaging boxes 4 to the next process.

[0043] It is understandable that there can be one or more packing stations. Generally, in order to improve packing efficiency, multiple packing stations will be set up along the conveying direction of the first conveying mechanism 1.

[0044] Specifically, when multiple packing stations need to perform packing work simultaneously, the first conveyor mechanism 1 first receives and transports empty packaging boxes 4 to the first packing station along the conveying direction of the first conveyor mechanism 1 for stacking and packing. After a short pause, the first conveyor mechanism 1 continues to receive and transport empty packaging boxes 4 to the first packing station along the conveying direction of the first conveyor mechanism 1, while the original packaging boxes 4 enter the next packing station. After another short pause, the previous steps are repeated, so that the first packed packaging box 4 is fully packed and stacked when it enters the last packing station for packing and leaves. Then the first fully packed stacked box is... The first box 4 filled with stacked pieces is transported to the lifting platform 31, while the second box 4 is simultaneously transported to the last packaging station. The lifting platform 31 moves the first box 4 filled with stacked pieces to the input end of the second conveying mechanism 2, so as to transport the first box 4 filled with stacked pieces to the second conveying mechanism 2. The second conveying mechanism 2 then transports the first box 4 filled with stacked pieces to the next process. This process is repeated, so that each box 4 filled with stacked pieces can be directly transported to the next process without waiting for all boxes 4 to be filled with stacked pieces before continuing to transport boxes 4, thereby improving the packing efficiency.

[0045] In some examples, refer to Figure 1 As shown, the first conveying mechanism 1 includes at least two first conveying lines 11 arranged along the first direction. The conveying directions of two adjacent first conveying lines 11 are opposite and both are perpendicular to the first direction. A first derailment conveying line 12 is provided between two adjacent first conveying lines 11. The first derailment conveying line 12 is configured to convey the packaging box 4 at the output end of the previous first conveying line 11 to the input end of the next first conveying line 11.

[0046] It is understood that the arrangement of the first conveyor lines 11 can be either spaced out or zero-spaced, that is, adjacent first conveyor lines 11 are arranged close together to reduce the space occupied by multiple first conveyor lines 11 and improve space utilization. In this embodiment, the first conveyor lines 11 are arranged zero-spaced.

[0047] Furthermore, the number of first conveyor lines 11 can be two or more, and the user can adjust it according to actual needs. In this embodiment, the number of first conveyor lines 11 is three. It should also be noted that the main function of the first conveyor line 11 is to transport empty packaging boxes 4 to the packing station for packaging, which is not directly related to the length of the first conveyor line 11. Therefore, the lengths of the multiple first conveyor lines 11 arranged along the first direction can be the same or different.

[0048] Specifically, by setting up at least two first conveyor lines 11 and controlling each first conveyor line 11 individually, the conveying of multiple packaging boxes 4 on the first conveyor mechanism 1 can be controlled separately. For example, the first conveyor mechanism 1 includes two first conveyor lines 11, each conveying one packaging box 4, and each first conveyor line 11 can correspond to a packing station. If the packaging box 4 on the second first conveyor line 11 along the conveying direction of the first conveyor mechanism 1 is packed first, it can be directly conveyed to the lifting platform 31, and then conveyed to the second conveyor mechanism 2 via the lifting platform 31. During this period, there is no need to wait for another packaging box 4 to be filled with stacked pieces, thereby improving the packing efficiency. If the packaging box 4 on the first first conveyor line 11 along the conveying direction of the first conveyor mechanism 1 is packed first, it can be conveyed into the first detour conveyor line 12 to wait to enter the second first conveyor line 11. At the same time, the first first conveyor line 11 can continue to receive and convey empty packaging boxes 4 to the packing station, thereby improving the packing efficiency of the packaging boxes 4.

[0049] As an example, the packing station is set on the side of the last first conveyor line 11. First, the first first conveyor line 11 receives and conveys the empty packaging box 4 into the first diversion conveyor line 12, thereby ensuring that the packaging box 4 always enters the next first conveyor line 11 in a single position, and the conveying action is repeated until it reaches the packing station.

[0050] Furthermore, in some examples, refer to Figures 1 to 3 As shown, the first conveyor line 11 is a roller conveyor line, and the first derailment conveyor line 12 includes several rows of first rotating wheels 121 and a first lifting drive. Each row of first rotating wheels 121 is arranged at intervals along the length of the rollers of the first conveyor line 11. Each row of first rotating wheels 121 is located in the gap between two adjacent rollers of the previous first conveyor line 11. The first lifting drive is configured to drive several rows of first rotating wheels 121 to lift and rotate synchronously, so as to lift the packaging box 4 on the previous first conveyor line 11 and transport it to the next first conveyor line 11.

[0051] In this embodiment, the first lifting drive component can be a drive element that can achieve linear drive, such as a pneumatic cylinder, hydraulic cylinder, or electric cylinder.

[0052] Specifically, the first conveyor line 11 is configured as a roller conveyor line, so that the friction between the first conveyor line 11 and the packaging line is mainly rolling friction, thereby reducing the wear on the packaging box 4; when the packaging box 4 enters the first reversing conveyor line 12, the first lifting drive unit drives several rows of first rotating wheels 121 to rise and rotate, thereby gradually changing the placement state of the packaging box 4, so that when the packaging box 4 enters the next first conveyor line 11, it remains parallel to its packaging state on the previous first conveyor line 11.

[0053] Understandably, the opening orientation of the packaging box 4 needs to be set according to the position of the pushing mechanism at the packing station. Optionally, the opening orientation of the packaging box 4 can be changed by setting the number of the first diversion conveyor line 12. For example, two second diversion conveyor lines 311 can be set so that the packaging box 4 can rotate 360°, so that when the packaging box 4 enters the packing station, it is in the same position as when it first enters the first conveyor mechanism 1.

[0054] In some examples, refer to Figure 4 and Figure 5 As shown, the second conveying mechanism 2 includes a docking conveyor line 21 and a second conveyor line 22. The docking conveyor line 21 and the second conveyor line 22 have different conveying directions. The docking conveyor line 21 is configured to receive the packaging box 4 sent by the lifting platform 31 and convey the received packaging box 4 to the second conveyor line 22 connected to the docking conveyor line 21. The second conveyor line 22 is configured to convey the received packaging box 4 to the next process.

[0055] In this embodiment, to improve the convenience of transporting the packaging box 4 and shorten the transport path, the transport directions of the docking conveyor line 21 and the second conveyor line 22 are set perpendicularly.

[0056] Furthermore, in some examples, refer to Figure 5 As shown, the lifting and conveying mechanism 3 includes a third conveying line 34 disposed on the lifting platform 31, and the third conveying line 34 is configured to receive the packaging box 4 conveyed by the first conveying mechanism 1.

[0057] Furthermore, refer to Figure 5 and Figure 6 As shown, in some examples, the lifting platform 31 is provided with a second derailment conveyor line 311, which is configured to change the conveying direction of the packaging box 4 so that the packaging box 4 on the lifting platform 31 enters the conveying surface of the docking conveyor line 21. The second derailment conveyor line 311 includes several second rows of rotating wheels and a second lifting drive (not shown). Each row of second rotating wheels 3111 is arranged at intervals along the length of the rollers of the third conveyor line 34. Each row of second rotating wheels 3111 is located in the gap between two adjacent rollers of the third conveyor line 34. The second lifting drive is configured to drive several rows of second rotating wheels 3111 to lift and rotate synchronously.

[0058] In this embodiment, the second lifting drive can be a cylinder, hydraulic cylinder, or electric cylinder, or other drive element capable of linear drive. It should also be noted that the second lifting drive drives several rows of second rotating wheels 3111 to rise and fall synchronously and rotate, causing the direction of travel of the packaging box 4 to directly change to the conveying direction of the docking conveyor line 21.

[0059] Specifically, when the packaged box 4 filled with stacked pieces is conveyed to the third conveyor line 34 on the lifting platform 31, and then the packaged box 4 is conveyed to the second diversion conveyor line 311, the lifting platform 31 is lowered to the input end of the second conveying mechanism 2, so that the second diversion conveyor line 311 is aligned with the docking conveyor line 21, so that the second diversion conveyor line 311 conveys the packaged box 4 to the docking conveyor line 21 of the second conveying mechanism 2, and then the docking conveyor line 21 conveys the packaged box 4 to the second conveyor line 22, and then the second conveyor line 22 conveys the packaged box 4 to the next process.

[0060] Furthermore, in some examples, a limiting plate 312 is provided on the side of the lifting platform 31 away from the first conveying mechanism 1. The limiting plate 312 is configured to restrict the packaging box 4 from sliding out of the lifting platform 31, thereby preventing the packaging box 4 from falling and causing damage to the silicon wafer.

[0061] In this embodiment, the docking conveyor line 21, the second conveyor line 22 and the third conveyor line 34 are roller conveyor lines, so that the friction mode of the packaging box 4 during the conveying process is mainly rolling friction, thereby reducing the wear on the packaging box 4.

[0062] In some examples, refer to Figure 5 As shown, the lifting and conveying mechanism 3 includes a drive component 32 and a vertically arranged support 33. The lifting platform 31 is slidably connected to the support 33. The drive end of the drive component 32 is connected to the lifting platform 31 to drive the lifting platform 31 to move back and forth vertically between the output end of the first conveying mechanism 1 and the input end of the second conveying mechanism 2.

[0063] In this embodiment, by setting a slider guide module 331 in the vertical direction of the bracket 33, the lifting platform 31 is fixedly connected to the slider, so that the lifting platform 31 is slidably connected to the bracket 33, thereby improving the stability and smoothness of the operation of the lifting platform 31; the drive component 32 includes a lifting drive component 321 and a pulley assembly 322, and the lifting drive component 321 drives the pulley assembly 322 to rotate, so that the lifting platform 31 moves in the vertical direction.

[0064] In some examples, the packaging box conveying device also includes empty packaging box conveying lines and full packaging box conveying lines. Multiple sets of first conveying mechanisms 1, second conveying mechanisms 2, and lifting conveying mechanisms 3 are provided. The empty packaging box conveying lines are configured to sequentially convey each empty packaging box 4 to multiple sets of first conveying mechanisms 1. The full packaging box 4 conveying lines are configured to receive full, stacked packaging boxes 4 from multiple sets of second conveying mechanisms 2 and sequentially convey them to the next process. Specifically, through the cooperation of multiple sets of empty packaging box conveying lines, multiple sets of full packaging box conveying lines, and multiple sets of first conveying mechanisms 1, second conveying mechanisms 2, and lifting conveying mechanisms 3, multiple packaging boxes 4 can be packed and transferred simultaneously, thereby improving packing efficiency.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] Furthermore, the terms "first" and "second" are configured for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A packaging box conveying device, characterized in that, The packaging box conveying device includes a first conveying mechanism, a second conveying mechanism, and a lifting conveying mechanism, wherein: The first conveying mechanism is configured to receive and convey empty packaging boxes to the packing station for stacking and packing, and to convey the packed packaging boxes to the lifting conveying mechanism. The lifting and conveying mechanism includes a lifting platform configured to carry and convey a packaging box filled with stacked pieces. The lifting and conveying mechanism is configured to drive the lifting platform to reciprocate between the output end of the first conveying mechanism and the input end of the second conveying mechanism, so as to convey the packaging box filled with stacked pieces from the first conveying mechanism to the second conveying mechanism. The second conveying mechanism is located above or below the first conveying mechanism, and the second conveying mechanism is configured to receive the packaging box delivered by the lifting conveying mechanism and transport the packaging box to the next process.

2. The packaging box conveying device according to claim 1, characterized in that, The first conveying mechanism includes at least two first conveying lines arranged along a first direction. The conveying directions of two adjacent first conveying lines are opposite and both are perpendicular to the first direction. A first derailment conveying line is provided between two adjacent first conveying lines. The first derailment conveying line is configured to convey the packaging box from the output end of the previous first conveying line to the input end of the next first conveying line.

3. The packaging box conveying device according to claim 2, characterized in that, The first conveyor line is a roller conveyor line. The first reversing conveyor line includes several rows of first rotating wheels and a first lifting drive. Each row of first rotating wheels is arranged at intervals along the length of the rollers of the first conveyor line. Each row of first rotating wheels is located in the gap between two adjacent rollers of the previous first conveyor line. The first lifting drive is configured to drive several rows of first rotating wheels to lift and rotate synchronously, so as to lift the packaging boxes on the previous first conveyor line and transport them to the next first conveyor line.

4. The packaging box conveying device according to claim 1, characterized in that, The second conveying mechanism includes a docking conveyor line and a second conveyor line. The docking conveyor line and the second conveyor line have different conveying directions. The docking conveyor line is configured to receive the packaging boxes sent by the lifting platform and convey the received packaging boxes to the second conveyor line connected to the docking conveyor line. The second conveyor line is configured to convey the received packaging boxes to the next process.

5. The packaging box conveying device according to claim 4, characterized in that, The lifting platform is equipped with a second derailment conveyor line and a third conveyor line. The second derailment conveyor line is configured to change the conveying direction of the packaging box so that the packaging box on the lifting platform enters the conveying surface of the docking conveyor line. The third conveyor line is configured to receive the packaging box conveyed by the first conveying mechanism. The second lane-changing conveyor line includes several rows of second rotating wheels and a second lifting drive. Each row of second rotating wheels is arranged at intervals along the length of the rollers of the third conveyor line. Each row of second rotating wheels is located in the gap between two adjacent rollers of the third conveyor line. The second lifting drive is configured to drive several rows of second rotating wheels to lift and rotate synchronously.

6. The packaging box conveying device according to claim 5, characterized in that, The lifting platform is provided with a limiting plate on the side away from the first conveying mechanism, and the limiting plate is configured to restrict the packaging box from sliding out of the lifting platform.

7. The packaging box conveying device according to claim 5, characterized in that, The docking conveyor line, the second conveyor line, and the third conveyor line are roller conveyor lines.

8. The packaging box conveying device according to claim 1, characterized in that, The lifting and conveying mechanism includes a drive assembly and a vertically arranged support. The lifting platform is slidably connected to the support. The drive end of the drive assembly is connected to the lifting platform to drive the lifting platform to move back and forth vertically between the output end of the first conveying mechanism and the input end of the second conveying mechanism.

9. The packaging box conveying device according to claim 1, characterized in that, The packaging box conveying device also includes an empty packaging box conveying line and a full packaging box conveying line. Multiple sets of the first conveying mechanism, the second conveying mechanism, and the lifting conveying mechanism are provided. The empty packaging box conveying line is configured to sequentially convey each empty packaging box to multiple sets of the first conveying mechanism. The full packaging box conveying line is configured to receive packaging boxes filled with stacked pieces from multiple sets of the second conveying mechanism and sequentially convey them to the next process.

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