Packaging box stack separation apparatus

Abstract

The application provides a packaging box stacking and separating device, which comprises a base assembly, a conveying assembly connected with the base assembly, a packaging box arranged on the conveying assembly, a fixing assembly comprising a first mounting frame structure connected with the base assembly and a fixing structure movably connected with the first mounting frame structure, the fixing structure having a fixing state close to the packaging box and a standby fixing state away from the packaging box, and a vertical driving assembly connected with the base assembly and penetrating through the conveying assembly. The technical scheme of the application effectively solves the problem that the internal liquid crystal screen is easily damaged due to the difficulty in stacking and separating the liquid crystal screen packaging box in the prior art.

Description

Technical Field

[0001] This application relates to the technical field of display transport, and more particularly to a packaging box stacking and separation device. Background Technology

[0002] Currently, with the upgrading and replacement of electronic products such as televisions, mobile phones, and tablets, the usage of LCD monitors or LCD screens is increasing year by year, and domestic manufacturers are building a large number of factories, with new production lines constantly being completed. Under this market environment, the demand for specialized stacking equipment used for LCD screen panels is also increasing significantly.

[0003] The back-end process of LCD displays requires cutting the panels into different sizes, such as 55 inches and 88 inches. The cut panels are then placed in packaging boxes. To avoid scratches on the surface of the LCD display, usually only one LCD display is contained in a packaging box. To save space, multiple packaging boxes are usually stacked.

[0004] Because the packaging boxes are large and the top layer is high, it is difficult to handle manually, resulting in low efficiency and instability. This can easily cause the stacked packaging boxes to tip over, leading to problems such as damage to the LCD screen, as shown in CN111792389A. Utility Model Content

[0005] One of the technical problems this application aims to solve is the difficulty in stacking and separating LCD screen packaging boxes, which leads to easy damage to the internal LCD screens.

[0006] To address the aforementioned technical problems, this application provides a packaging box stacking and separation device.

[0007] A packaging box stacking and separating device according to this application includes: a base assembly; a conveying assembly connected to the base assembly, with packaging boxes disposed on the conveying assembly; a fixing assembly including a first mounting frame structure and a fixing structure, the first mounting frame structure being connected to the base assembly, the fixing structure being movably connected to the first mounting frame structure, the fixing structure having a fixed state close to the packaging box and a unfixed state away from the packaging box; and a vertical drive assembly connected to the base assembly, the vertical drive assembly passing through the conveying assembly.

[0008] In some embodiments, the fixing structure includes two fixing structures, which are respectively located on both sides of the packaging box. The fixing structure includes a first clamping part and a connecting part. The connecting part is movably connected to the first mounting frame structure, and the first clamping part is connected to the connecting part.

[0009] In some embodiments, the first mounting bracket structure includes a first mounting bracket and a first slide rail, the first slide rail being connected to the first mounting bracket, and the connecting portion having a first sliding groove, the first sliding groove being movably connected to the first slide rail.

[0010] In some embodiments, the fixing structure further includes a second clamping part and a horizontal driving part. The second clamping part is connected to the output end of the horizontal driving part, and the horizontal driving part is connected to the connecting part. The first clamping part has an opening, and the second clamping part is correspondingly disposed to the first clamping part. The second clamping part has a clamping state with the opening extended and a clamping state with the opening retracted.

[0011] In some embodiments, the packaging box stacking and separating device further includes a positioning component, which includes a mounting base structure and a positioning structure, the positioning structure being movably connected to the mounting base structure, and the positioning structure having a positioning state close to the packaging box and a positioning state far from the packaging box.

[0012] In some embodiments, the mounting structure includes a mounting base and a drive gear, the drive gear being rotatably connected to the mounting base, and the positioning structure including a rack, a sliding portion, and a positioning portion, the rack meshing with the drive gear, the sliding portion being connected to the rack, and the positioning portion being connected to the sliding portion.

[0013] In some embodiments, the mounting structure further includes a second slide rail connected to the mounting base, and the sliding portion has a second slide groove movably connected to the second slide rail.

[0014] In some embodiments, the mounting structure further includes a limiting wheel, which is rotatably connected to the mounting base, and a rack is located between the limiting wheel and the drive gear.

[0015] In some embodiments, the conveying assembly includes a second mounting frame structure and a plurality of conveying rollers, the plurality of conveying rollers being rotatably connected to the second mounting frame structure and arranged at intervals.

[0016] In some embodiments, the vertical drive assembly includes a vertical drive structure, a connecting structure, and a support structure. The vertical drive structure is connected to the base assembly, the connecting structure is connected to the output end of the vertical drive structure, and the support structure includes multiple supports that are connected to the connecting structure and are respectively located between multiple conveying rollers.

[0017] Through the above technical solution, the packaging box stacking and separating device provided in this application, when it is necessary to stack separated packaging boxes, multiple separated packaging boxes are conveyed by a conveying component. The first packaging box moves to the position below the fixing component, and the vertical drive component drives the packaging box upward to the fixing component. The fixing structure fixes the first packaging box. After the vertical drive component resets, the second packaging box moves to the position below the fixing component, and the vertical drive component rises until the second packaging box and the first packaging box abut together. After the fixing structure releases the first packaging box, it fixes the second packaging box. The vertical drive component resets again, and the above operation is repeated until multiple packaging boxes are stacked together. Boxes are stacked together. When it is necessary to separate the stacked boxes, the stacked boxes are transported by a conveyor assembly. A vertical drive assembly drives multiple stacked boxes to rise together. A fixing structure secures the second box from the bottom. The vertical drive assembly descends, separating the bottom box from the others. The bottom box descends with the vertical drive assembly and returns to the conveyor assembly. After the conveyor assembly transports the separated boxes to other positions, the vertical drive assembly rises again, lifting the boxes above. The fixing structure releases the boxes and then re-secures the second box from the bottom. This process is repeated to separate multiple stacked boxes. The technical solution of this application effectively solves the problem of easy damage to the internal LCD screen caused by the difficulty in stacking and separating LCD screen packaging boxes in the prior art. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the packaging box stacking and separating device disclosed in an embodiment of this application is shown;

[0020] Figure 2 It shows Figure 1 A schematic diagram of the main structure of a packaging box stacking and separating device;

[0021] Figure 3 It shows Figure 1 A schematic diagram of the left-hand structure of the packaging box stacking and separating equipment;

[0022] Figure 4 It shows Figure 1 Right view structural diagram of the packaging box stacking and separating equipment;

[0023] Figure 5 It shows Figure 1 A front structural diagram of the fixing components of the packaging box stacking and separating equipment;

[0024] Figure 6 It shows Figure 5 A partially enlarged structural diagram of point A of the packaging box stacking and separating equipment;

[0025] Figure 7 It shows Figure 1 A schematic diagram of the rear structure of the fixing components of the packaging box stacking and separating equipment;

[0026] Figure 8 It shows Figure 7 A partially enlarged structural diagram of section B of the packaging box stacking and separation equipment;

[0027] Figure 9 It shows Figure 1 A schematic diagram of the structure of the second clamping part of the packaging box stacking and separating device;

[0028] Figure 10 It shows Figure 1 A right-side structural schematic diagram of the second clamping part of the packaging box stacking and separating device;

[0029] Figure 11 It shows Figure 1 A schematic diagram of the positioning components of a packaging box stacking and separation device;

[0030] Figure 12 It shows Figure 11 A partially enlarged structural diagram of point C of the packaging box stacking and separating device;

[0031] Figure 13 It shows Figure 1 A top view of the positioning components of the packaging box stacking and separating equipment;

[0032] Figure 14 It shows Figure 1 A schematic diagram of the base assembly of the packaging box stacking and separation equipment;

[0033] Figure 15 It shows Figure 1 A top view of the conveying components of a packaging box stacking and separating device;

[0034] Figure 16 It shows Figure 1 A schematic diagram of the vertical drive component of the packaging box stacking and separating device.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10. Base assembly; 20. Conveying assembly; 21. Second mounting frame structure; 22. Conveying roller; 30. Fixing assembly; 31. First mounting frame structure; 311. First mounting frame; 312. First slide rail; 32. Fixing structure; 321. First clamping part; 322. Connecting part; 323. Second clamping part; 324. Horizontal drive part; 40. Vertical drive assembly; 41. Vertical drive structure; 42. Connecting structure; 43. Support structure; 50. Positioning assembly; 51. Mounting seat structure; 511. Mounting seat; 512. Drive gear; 513. Second slide rail; 514. Limiting wheel; 52. Positioning structure; 521. Rack; 522. Sliding part; 523. Positioning part. Detailed Implementation

[0037] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments of the application herein, but includes all technical solutions falling within the scope of the claims.

[0038] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0039] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0041] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0042] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0043] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0044] like Figures 1 to 16 As shown in the embodiments of this application, the packaging box separation device includes: a base assembly 10, a conveying assembly 20, a fixing assembly 30, and a vertical drive assembly 40. The conveying assembly 20 is connected to the base assembly 10, and the packaging box is placed on the conveying assembly 20. The fixing assembly 30 includes a first mounting frame structure 31 and a fixing structure 32. The first mounting frame structure 31 is connected to the base assembly 10, and the fixing structure 32 is movably connected to the first mounting frame structure 31. The fixing structure 32 has a fixed state close to the packaging box and a waiting-to-be-fixed state away from the packaging box. The vertical drive assembly 40 is connected to the base assembly 10 and passes through the conveying assembly 20.

[0045] When the packaging box separating device of this embodiment needs to stack the separated packaging boxes, multiple separated packaging boxes are conveyed by the conveying component 20. The first packaging box moves to a position below the fixing component 30, and the vertical drive component 40 drives the packaging box upward to the fixing component 30. The fixing structure 32 fixes the first packaging box. After the vertical drive component 40 resets, the second packaging box moves to a position below the fixing component 30, and the vertical drive component 40 rises until the second packaging box abuts against the first packaging box. The fixing structure 32 releases the first packaging box and fixes the second packaging box. The vertical drive component 40 resets again, and the above operation is repeated until multiple packaging boxes are stacked. When it is necessary to separate stacked packaging boxes, the stacked packaging boxes are conveyed by the conveying component 20, and the vertical drive component 40 drives multiple stacked packaging boxes to rise together. The fixing structure 32 fixes the second packaging box from the bottom. The vertical drive component 40 descends, separating the bottom packaging box from the other packaging boxes. It descends with the vertical drive component 40 and returns to the conveying component 20. After the conveying component 20 conveys the separated packaging boxes to other positions, the vertical drive component 40 rises again, lifting the multiple packaging boxes above. After the fixing structure 32 releases the packaging boxes, it re-fixes the second packaging box from the bottom. The above operation is repeated to separate multiple stacked packaging boxes. The technical solution of this embodiment effectively solves the problem of easy damage to the internal LCD screen caused by the difficulty of stacking and separating LCD screen packaging boxes in the prior art.

[0046] like Figures 1 to 10 As shown, in this embodiment, the fixing structure 32 includes two parts, located on opposite sides of the packaging box. Each fixing structure 32 includes a first clamping part 321 and a connecting part 322. The connecting part 322 is movably connected to the first mounting frame structure 31, and the first clamping part 321 is connected to the connecting part 322. The two connecting parts 322 move along the first mounting frame 311, causing the two first clamping parts 321 to move closer together, clamping and fixing the packaging box located between the two first clamping parts 321, thus preventing the packaging box from slipping.

[0047] like Figures 1 to 5 As shown, in the technical solution of this embodiment, the first mounting frame structure 31 includes a first mounting frame 311 and a first slide rail 312. The first slide rail 312 is connected to the first mounting frame 311. The connecting part 322 has a first sliding groove, which is movably connected to the first slide rail 312. The first slide rail 312 and the first sliding groove cooperate in such a way that the movement of the connecting part 322 is guided and limited, thus fixing the movement path of the connecting part 322. The first mounting frame structure also includes a double-headed cylinder, which is connected to two connecting parts 322 respectively, driving the two connecting parts 322 to move closer or further apart, thereby clamping, fixing, and releasing the packaging box.

[0048] like Figures 5 to 10 As shown, in this embodiment, the fixing structure 32 further includes a second clamping part 323 and a horizontal driving part 324. The second clamping part 323 is connected to the output end of the horizontal driving part 324, and the horizontal driving part 324 is connected to the connecting part 322. The first clamping part 321 has an opening, and the second clamping part 323 is correspondingly arranged with the first clamping part 321. The second clamping part 323 has a clamping state with the opening extended and a clamping state with the opening retracted. The outer side of the packaging box is machined with a groove corresponding to the second clamping part 323. The first clamping parts 321 move closer to each other and clamp the packaging box. After clamping the packaging box, the horizontal driving part 324 drives the second clamping part 323 to extend out of the first clamping part 321 and enter the groove of the packaging box to clamp the packaging box. At the same time, the second clamping part 323 provides an upward support force for the packaging box to prevent the packaging box from slipping under the action of gravity. The second clamping part 323 has a concave arc surface. During the process of the second clamping part 323 extending into the groove, the concave arc surface plays a guiding role, making it easier for the second clamping part 323 to enter the corresponding groove.

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 11 , Figure 12 and Figure 13 As shown in the technical solution of this embodiment, the packaging box stacking and separating device further includes a positioning component 50. The positioning component 50 includes a mounting base structure 51 and a positioning structure 52. The positioning structure 52 is movably connected to the mounting base structure 51. The positioning structure 52 has a positioning state close to the packaging box and a positioning state far away from the packaging box. The positioning component 50 positions the packaging box to ensure that the packaging box is upright on the conveying component 20, avoiding the problem that the fixing component 30 cannot fix the packaging box due to the packaging box being placed crookedly. There are two positioning structures 52. The packaging box is located between the two positioning structures 52. The two positioning structures 52 move closer to each other and push the packaging box that is offset until the packaging box is straightened.

[0050] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 11 , Figure 12 and Figure 13As shown, in this embodiment, the mounting structure 51 includes a mounting base 511 and a drive gear 512. The drive gear 512 is rotatably connected to the mounting base 511. The positioning structure 52 includes a rack 521, a sliding part 522, and a positioning part 523. The rack 521 meshes with the drive gear 512, the sliding part 522 is connected to the rack 521, and the positioning part 523 is connected to the sliding part 522. When the drive gear 512 rotates, it drives the rack 521 to move. The sliding part 522, which is connected to the rack 521, moves, thereby driving the positioning part 523 to move. The positioning part 523 contacts the packaging box and applies an external force to the packaging box. The two corresponding positioning structures 52 have two racks, which are respectively arranged on both sides of the drive gear 512. The rotation of the drive gear 512 simultaneously drives the two positioning parts 523 to move, which is beneficial for aligning the packaging box.

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 11 , Figure 12 and Figure 13 As shown, in the technical solution of this embodiment, the mounting base structure 51 further includes a second slide rail 513, which is connected to the mounting base 511. The sliding part 522 has a second slide groove, which is movably connected to the second slide rail 513. The structure in which the second slide rail 513 and the second slide groove cooperate guide the movement of the sliding part 522, thereby determining the movement path of the positioning part 523.

[0052] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 11 , Figure 12 and Figure 13 As shown, in the technical solution of this embodiment, the mounting base structure 51 further includes a limiting wheel 514, which is rotatably connected to the mounting base 511. The rack 521 is located between the limiting wheel 514 and the driving gear 512. The limiting wheel 514 limits the rack 521, preventing the rack 521 from moving with the rotation of the driving gear. At the same time, the limiting wheel 514 itself rotates with the movement of the rack 521. The two have rolling friction, which is relatively small, resulting in less wear on the rack and a longer service life.

[0053] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 15As shown, in this embodiment, the conveying assembly 20 includes a second mounting frame structure 21 and multiple conveying rollers 22. The multiple conveying rollers 22 are rotatably connected to the second mounting frame structure 21 and are arranged at intervals. The conveying assembly 20 conveys the packaging boxes, and the first mounting frame 311 is positioned above the conveying assembly 20 without interfering with the conveying of the packaging boxes.

[0054] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 15 and Figure 16 As shown, in this embodiment, the vertical drive assembly 40 includes a vertical drive structure 41, a connecting structure 42, and a support structure 43. The vertical drive structure 41 is connected to the base assembly 10, and the connecting structure 42 is connected to the output end of the vertical drive structure 41. Multiple support structures 43 are connected to the connecting structure 42 and are located between multiple conveying rollers 22. The vertical drive structure 41 drives the connecting structure 42, causing the multiple support structures 43 to move upwards simultaneously. After the support structures 43 are higher than the conveying assembly 20, they support the packaging box, carrying it away from the conveying assembly 20 and up to the upper fixed assembly 30. The vertical drive structure 41 then drives the support structures 43 downwards. After the support structures 43 place the packaging box back onto the conveying assembly 20, the support structures 43 are lower than the conveying assembly 20, and the conveying assembly 20 continues to convey the packaging box. The spacing between the multiple conveyor rollers 22 allows the support structure 43 to pass through the conveyor assembly 20 to support the packaging box, or to exit the conveyor assembly 20 and put the packaging box back onto the conveyor assembly 20, without affecting the operation of the conveyor assembly 20.

[0055] In summary, a stacking and separating mechanism (packaging box stacking and separating equipment) includes a platform (base assembly 10), a conveyor line (conveyor assembly 20), packaging boxes, an upper clamping device (fixing assembly 30), a lower positioning device (positioning assembly 50), and a bottom lifting device (vertical drive assembly 40); the conveyor line consists of a drive motor, a frame (second mounting frame structure 21), and rollers (conveyor rollers 22); the packaging boxes include grooves; the upper clamping device consists of an electric cylinder, a guide rail (first slide rail 312), a support beam reinforcing rib, and a support. The device consists of a beam (connecting part 322), grippers (second gripping part 323), clamping plates (first gripping part 321), and a crossbeam (first mounting bracket 311); the grippers consist of a cylinder (horizontal drive part 324), a fixing plate, and gripper plates, with the gripper plates having an arc to correspond to the grooves of the packaging box; the lower positioning device consists of a cylinder, a guide rail (second slide rail 513), a rack 521, a gear (drive gear 512), and a positioning plate; the bottom lifting device consists of a drive motor cylinder (vertical drive structure 41), a support plate (connecting structure 42), and a lifting crossbeam ( The supporting structure 43) consists of: stacked packaging boxes flow into this equipment from the upstream production line via the conveyor line; the lower positioning device begins positioning; after positioning, the bottom lifting device begins to lift the entire packaging box, and pauses after reaching the appropriate position; the upper clamping device begins to work, clamping from both sides towards the middle, with the jaws gripping the groove of the second layer of packaging box below, supporting the second layer and above packaging boxes; the bottom lifting device continues to work, lifting the last layer of packaging boxes down to the bottom; the conveyor line begins to work, carrying the separated individual packaging boxes out to the downstream production line; individual packaging boxes flow into this equipment from the upstream production line via the conveyor line; the lower positioning device begins positioning; after positioning, the bottom lifting device begins to lift the individual packaging boxes, and pauses after reaching the appropriate position; the upper clamping device begins to work, clamping from both sides towards the middle, with the jaws gripping the groove of the last layer of packaging box; the bottom lifting device continues to work, lowering to the bottom; the upstream production line continues to carry individual packaging boxes in via the conveyor line, repeating the above work until the stacking is complete; the stacked packaging boxes then flow out to the downstream production line via the conveyor line.

[0056] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions of this application based on the above description.

[0057] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A packaging box stacking and separating device, characterized in that, include: Base assembly (10); A conveying assembly (20) is connected to the base assembly (10), and a packaging box is disposed on the conveying assembly (20); The fixing component (30) includes a first mounting frame structure (31) and a fixing structure (32). The first mounting frame structure (31) is connected to the base assembly (10), and the fixing structure (32) is movably connected to the first mounting frame structure (31). The fixing structure (32) has a fixed state close to the packaging box and a waiting-to-be-fixed state away from the packaging box. A vertical drive assembly (40) is connected to the base assembly (10) and passes through the conveying assembly (20).

2. The packaging box stacking and separating device according to claim 1, characterized in that, The fixing structure (32) includes two, and the two fixing structures (32) are respectively located on both sides of the packaging box. The fixing structure (32) includes a first clamping part (321) and a connecting part (322). The connecting part (322) is movably connected to the first mounting frame structure (31), and the first clamping part (321) is connected to the connecting part (322).

3. The packaging box stacking and separating device according to claim 2, characterized in that, The first mounting bracket structure (31) includes a first mounting bracket (311) and a first slide rail (312). The first slide rail (312) is connected to the first mounting bracket (311). The connecting part (322) has a first sliding groove, which is movably connected to the first slide rail (312).

4. The packaging box stacking and separating device according to claim 2, characterized in that, The fixing structure (32) further includes a second clamping part (323) and a horizontal driving part (324). The second clamping part (323) is connected to the output end of the horizontal driving part (324), and the horizontal driving part (324) is connected to the connecting part (322). The first clamping part (321) has an opening, and the second clamping part (323) is correspondingly arranged with the first clamping part (321). The second clamping part (323) has a clamping state extending out of the opening and a clamping state retracting into the opening.

5. The packaging box stacking and separating device according to claim 1, characterized in that, The packaging box stacking and separating device further includes a positioning component (50), which includes a mounting base structure (51) and a positioning structure (52). The positioning structure (52) is movably connected to the mounting base structure (51) and has a positioning state close to the packaging box and a positioning state far away from the packaging box.

6. The packaging box stacking and separating device according to claim 5, characterized in that, The mounting structure (51) includes a mounting base (511) and a drive gear (512). The drive gear (512) is rotatably connected to the mounting base (511). The positioning structure (52) includes a rack (521), a sliding part (522), and a positioning part (523). The rack (521) meshes with the drive gear (512). The sliding part (522) is connected to the rack (521). The positioning part (523) is connected to the sliding part (522).

7. The packaging box stacking and separating device according to claim 6, characterized in that, The mounting base structure (51) further includes a second slide rail (513), which is connected to the mounting base (511). The sliding part (522) has a second slide groove, which is movably connected to the second slide rail (513).

8. The packaging box stacking and separating device according to claim 6, characterized in that, The mounting base structure (51) also includes a limiting wheel (514), which is rotatably connected to the mounting base (511), and the rack (521) is located between the limiting wheel (514) and the drive gear (512).

9. The packaging box stacking and separating device according to any one of claims 1 to 8, characterized in that, The conveying assembly (20) includes a second mounting frame structure (21) and a plurality of conveying rollers (22), the plurality of conveying rollers (22) being rotatably connected to the second mounting frame structure (21), and the plurality of conveying rollers (22) being arranged at intervals.

10. The packaging box stacking and separating device according to claim 9, characterized in that, The vertical drive assembly (40) includes a vertical drive structure (41), a connecting structure (42), and a support structure (43). The vertical drive structure (41) is connected to the base assembly (10). The connecting structure (42) is connected to the output end of the vertical drive structure (41). The support structure (43) includes multiple structures, which are connected to the connecting structure (42) and are located between multiple conveying rollers (22).

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