A carton labelling apparatus

Abstract

The application discloses a packaging box pasting device, and relates to the field of packaging machinery, which comprises a first conveying mechanism for conveying paper sheets, a second conveying mechanism for conveying packaging boxes, and a grabbing mechanism for grabbing the packaging boxes to the first conveying mechanism to bond with the paper sheets; the output end of the second conveying mechanism is located above the first conveying mechanism, a supporting table is arranged above the first conveying mechanism, the supporting table supports the packaging boxes output by the conveying end of the second conveying mechanism, and the supporting table is rotationally arranged in the horizontal direction; the grabbing mechanism comprises inner lining blocks which are arranged above the supporting table in a lifting mode, and inner lining plates are horizontally slid on the opposite sides of the inner lining blocks and used for abutting against the inner walls of the packaging boxes. The application improves the automation degree of pasting and reduces the labor intensity.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of packaging machinery, in particular to a packaging box pasting device. BACKGROUND

[0002] At present, after the packaging box is processed, an attractive pattern is usually pasted on the surface of the packaging box to improve the attractiveness of the packaging box.

[0003] The current pasting method is to place a plurality of patterned paper sheets on a conveyor belt, convey them to a glue applicator for glue application, and then manually paste each paper sheet on the packaging box.

[0004] In the above related technology, the pasting process of the paper sheet and the packaging box has low automation and high labor intensity, and there is room for improvement. SUMMARY

[0005] In order to improve the automation of pasting and reduce labor intensity, the present application provides a packaging box pasting device.

[0006] The packaging box pasting device provided by the present application adopts the following technical scheme:

[0007] A packaging box pasting device comprises a first conveying mechanism for conveying paper sheets, a second conveying mechanism for conveying packaging boxes, and a grabbing mechanism for grabbing the packaging boxes to the first conveying structure and pasting the paper sheets; the output end of the second conveying mechanism is located above the first conveying structure, a supporting table is arranged above the first conveying structure, the supporting table supports the packaging boxes output by the conveying end of the second conveying mechanism, and the supporting table is rotationally arranged in the horizontal direction; the grabbing mechanism comprises an inner lining block rotationally arranged above the supporting table, and inner lining plates for abutting against the inner walls of the packaging boxes are horizontally slidably arranged on the opposite sides of the inner lining block.

[0008] By adopting the above technical scheme, when the packaging box is conveyed from the second conveying mechanism to the supporting table, the inner lining block is lowered and deep into the packaging box, then the inner lining plates are slid and abut against the opposite inner walls of the packaging box, the packaging box is grabbed and fixed, the supporting table is rotated downward, at this time the inner lining block drives the packaging box to continue moving downward until the paper sheet on the first conveying mechanism is pasted, then the inner lining plates are retracted and the inner lining block is reset, the pasted packaging box is conveyed on the first conveying mechanism to the next process; then the supporting table is rotated to be horizontal, and the above operation is repeated, so that the automatic pasting of the packaging box and the paper sheet is realized, which helps to reduce the labor intensity.

[0009] Preferably, the first conveying mechanism is provided with a mounting frame, the supporting table is composed of two supporting plates, the two supporting plates are rotationally connected to the mounting frame in the horizontal direction, and the maximum state of upward rotation of the supporting plates is the horizontal state; the side of the two supporting plates away from the rotation connection point is provided with a magnet, the two supporting plates are rotated in the direction of approaching each other to be horizontal, and the two magnets are attracted to each other.

[0010] By adopting the above technical scheme, in the initial state, the two supporting plates are horizontal, when the packaging box is conveyed to the supporting plates, the inner lining block extends into the packaging box, the inner lining plate abuts against the inner wall of the packaging box, then the inner lining block continues to move downward to push the two supporting plates to rotate downward, when the two magnets are separated, the two supporting plates fall due to gravity, at this time, the inner lining plate drives the packaging box to descend and be bonded with the paper sheet, then the inner lining plate retracts, and the inner lining block rises, in this process, the linkage member drives the two supporting plates to gradually move upward until closed.

[0011] Preferably, the mounting frame is provided with a lifting cylinder, the lifting cylinder is vertically downward, and the inner lining block is arranged at the end of the piston rod of the lifting cylinder.

[0012] By adopting the above technical scheme, the lifting and lowering action of the inner lining block can be realized by the extension and retraction of the piston rod of the lifting cylinder.

[0013] Preferably, the inner lining plate is provided with four inner lining plates corresponding to the four inner walls of the packaging box.

[0014] By adopting the above technical scheme, when the packaging box is conveyed to the supporting plates, the four inner lining blocks slide and abut against the four inner walls of the packaging box, in this process, the position of the packaging box can be adjusted and centered, thereby ensuring the consistency of bonding of all packaging boxes with the paper sheet.

[0015] Preferably, the inner lining block is provided with four drive cylinders corresponding to the four inner lining plates, the piston rod of the drive cylinder is fixed to the corresponding inner lining plate, the piston rod of the drive cylinder extends and retracts in the horizontal direction, and extends and retracts in the direction perpendicular to the corresponding inner wall of the packaging box.

[0016] By adopting the above technical scheme, when the inner lining block enters the packaging, the four drive cylinders drive the corresponding inner lining plates to move respectively, so that the inner lining plate moves to the side of the inner wall of the packaging box and abuts against the inner wall of the packaging box, thereby realizing the grabbing action of the packaging box.

[0017] Preferably, the linkage is provided as a pull rod, two pull rods are provided, one-to-one corresponding to two inner lining plates on the same side of the two support plates, the lower end of the pull rod is provided on the upper side of the corresponding inner lining plate through a bidirectional torsion spring, and the upper end of the pull rod is provided with an elastic hooking piece; in a free state, the upper end of the pull rod is located on the side away from the inner lining plate, and the upper end of the pull rod is located on the side away from the inner lining plate at the rotary connection of the support plate on the same side; a hooking groove is formed on the end face of the two support plates close to each other, the elastic hooking piece is hooked and matched with the hooking groove, when the inner lining block descends, the support plate rotates downward, the pull rod rotates to the side of the inner lining plate under the action of the elastic reset piece and abuts against the support plate, until the elastic hooking piece is separated from the support plate; when the inner lining block rises, the elastic hooking piece cooperates with the hooking groove to drive the support plate to rotate upward to reset, and the elastic hooking piece is separated from the hooking groove.

[0018] By adopting the above technical scheme, when the inner lining block drives the packaging box to move downward from the two support plates, the two support plates rotate downward under the abutting action, and since the upper end of the pull rod is located on the outside of the rotating point of the support plate, in the descending process of the inner lining plate, the pull rod will abut against the support plate and rotate until the elastic hooking piece at the end of the pull rod is separated from the support plate, at which time the pull rod resets under the action of the elastic reset piece, and when the inner lining plate retracts inward and separates from the packaging box, the elastic hooking piece is still located on the side away from the inner lining plate of the support plate, when the inner lining block rises, in this process, the elastic hooking piece will enter the hooking groove, and in the ascending process of the inner lining block, the elastic hooking piece drives the support plate to flip upward to the horizontal state, and then when the elastic hooking piece separates from the support plate as the inner lining block continues to rise, the automatic opening and closing of the support plate is realized.

[0019] Preferably, the elastic hooking piece comprises two hooking rods and a compression spring, the two hooking rods are rotatably connected at the end of the pull rod, the two hooking rods are in a "V" shape, and the compression spring is connected between the two hooking rods; the hooking groove is a T-shaped groove, the two hooking rods are hooked and matched with the horizontal part of the hooking groove, and the pull rod is inserted and matched with the vertical part of the hooking groove.

[0020] By adopting the above technical scheme, when the two hooking rods enter the hooking groove, the hooking rods are hooked and matched with the hooking groove under the action of the compression spring, when the inner lining block rises, the two hooking rods drive the support plate to rotate upward, when the support plate rotates to the maximum state of the horizontal state, the pull rod continues to move upward with the inner lining plate, at which time the two hooking rods compress the compression spring, and the two hooking rods are separated from the hooking groove, that is, the hooking and separation from the support plate are realized, and then the automatic closing of the support plate is realized.

[0021] Preferably, the bottom of the inner lining block is provided with a rubber pad.

[0022] By adopting the above technical scheme, when the inner lining block drives the packaging box to move downward and abuts against the paper sheet, in order to prevent the abutting force from being too large and adversely affecting the first conveying mechanism, the rubber pad is used for buffering and reducing the pressure.

[0023] Preferably, the two supporting plates are provided with positioning plates for positioning the packaging box on the side away from the second conveying mechanism, and when the supporting plates are turned downward to be vertical, the two positioning plates guide the lifting of the packaging box.

[0024] By adopting the above technical scheme, when the packaging box on the second conveying mechanism is conveyed to the supporting plate, the positioning plates block and position the packaging box, preventing the packaging box from falling off the supporting plate due to inertia, and when the supporting plate is turned downward to be vertical, the two positioning plates are vertical and guide the lowering of the packaging box, improving the stability of the lowering of the packaging box.

[0025] Preferably, the mounting frame is provided with two horizontally arranged limiting plates, and the two limiting plates correspond to the two supporting plates one by one, and the limiting plate is located at the rotating connection of the corresponding supporting plate, and when the supporting plate is turned to be horizontal, the limiting plate abuts against the corresponding supporting plate.

[0026] By adopting the above technical scheme, when the supporting plate is turned to be horizontal, the limiting plate abuts against the corresponding supporting plate, limiting the maximum angle of upward turning of the supporting plate, which helps to prevent the supporting plate from continuing to move upward with the hooking rod.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The packaging box on the second conveying mechanism is conveyed from the conveying end to the supporting plate, the inner lining block is lowered into the packaging box, the inner lining plate is elongated and abuts against the inner wall of the packaging box, the packaging box is gripped and clamped, then the inner lining block continues to descend, pushes the two supporting tables to open, and then the packaging box is bonded with the paper sheet on the first conveying mechanism, realizing automatic picture pasting of the packaging box and helping to reduce the labor intensity;

[0029] 2. With the aid of the magnet, the two supporting tables can be fixed in the horizontal state, that is, the downward turning of the two supporting tables can be realized with the descent of the inner lining block, and when the inner lining block rises, the hooking rod enters the hooking groove and hooks, then in the rising process of the inner lining block, the supporting table turns upward until the horizontal state, that is, the automatic turning of the two supporting tables is realized;

[0030] 3. By using the limiting plate, when the packaging box on the second conveying mechanism is conveyed to the supporting plate, the limiting plate positions the packaging box, preventing the packaging box from falling off the supporting plate due to inertia, and when the supporting plate is turned downward to be vertical, the limiting plate guides the lifting of the packaging box. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic view of the overall structure of the embodiment one of the application;

[0032] Figure 2 It is a schematic view of the partial structure of the embodiment one of the application, mainly embodying the structure of the supporting plate;

[0033] Figure 3 It is a schematic view of the partial structure of the embodiment one of the application, mainly embodying the structure of the grabbing assembly;

[0034] Figure 4 It is a schematic view of the structure of the pull rod and the elastic hooking piece in the embodiment one of the application;

[0035] Figure 5 It is a state diagram of the inner lining block driving the supporting plate to rotate downward to the vertical state in the embodiment one of the application;

[0036] Figure 6 It is a state diagram of the inner lining block driving the packaging box and the paper sheet to be bonded in the embodiment one of the application;

[0037] Figure 7 It is a state diagram of the inner lining block ascending and the hooking rod and the hooking groove being hooked in cooperation in the embodiment one of the application;

[0038] Figure 8 It is a schematic view of the supporting plate being horizontal in the embodiment two of the application, mainly embodying the structure of the positioning plate;

[0039] Figure 9 It is a schematic view of the supporting plate being vertical in the embodiment two of the application, mainly embodying the guiding effect of the positioning plate.

[0040] The reference signs are as follows: 1, first conveying mechanism; 2, second conveying mechanism; 3, supporting table; 31, supporting plate; 311, magnet; 4, grabbing mechanism; 41, inner lining block; 411, driving cylinder; 412, rubber pad; 42, lifting cylinder; 5, mounting frame; 51, limiting plate; 6, inner lining plate; 7, linkage; 71, pull rod; 8, elastic hooking piece; 81, hooking rod; 82, compression spring; 9, hooking groove; 91, vertical part; 92, horizontal part; 10, positioning plate. DETAILED DESCRIPTION

[0041] The following will be described in detail with reference to the accompanying drawings Figures 1-9 The application will be further described in detail.

[0042] The embodiment of the application discloses a packaging box map pasting device.

[0043] Embodiment 1

[0044] Reference Figure 1The packaging box pasting device comprises a first conveying mechanism 1 conveying paper sheets, a second conveying mechanism 2 conveying packaging boxes, a supporting table 3 arranged on the first conveying mechanism 1 and used for supporting the packaging boxes, and a grabbing mechanism 4 used for grabbing the packaging boxes on the supporting table 3 to the first conveying mechanism 1 and bonding with the paper sheets; the first conveying mechanism 1 and the second conveying mechanism 2 both adopt conveying belts and are both step-by-step, the conveying directions of the second conveying mechanism 2 and the first conveying mechanism 1 are vertically arranged, and the output end of the second conveying mechanism 2 is located on the side close to the first conveying mechanism 1 and above the first conveying mechanism 1. The supporting table 3 is located at the output end of the second conveying mechanism 2, and the packaging boxes on the second conveying mechanism 2 are conveyed to the supporting table 3 one by one.

[0045] With reference to Figure 1 and Figure 2 , the first conveying mechanism 1 is arranged with a mounting frame 5, the supporting table 3 is composed of two supporting plates 31, the two supporting plates 31 are both rotated on the mounting frame 5 along the horizontal direction, and the rotating axis directions of the two supporting plates 31 are parallel to the conveying direction of the second conveying mechanism 2. The end faces of the two supporting plates 31 away from the rotating connection parts are both arranged with magnets 311, when the two supporting plates 31 are rotated to the horizontal state, the two magnets 311 are attracted, and then the two supporting plates 31 are kept in the horizontal state, and the supporting effect is achieved.

[0046] With reference to Figure 1 and Figure 3 , the grabbing mechanism 4 comprises an inner block 41 arranged on the mounting frame 5 in a lifting mode and a driving part driving the inner block 41 to lift, the driving part is arranged as a lifting cylinder 42, the lifting cylinder 42 is fixedly arranged on the mounting frame 5, and the lifting cylinder 42 is vertically arranged downward, and the inner block 41 is fixedly connected to the end part of the piston rod of the lifting cylinder 42. The inner block 41 is in the shape of a cuboid, four inner plates 6 are horizontally slid on the four circumferential sides of the inner block 41, and the four inner plates 6 correspond to the four inner walls of the packaging box respectively and are used for abutting against the inner walls of the packaging box. Four driving cylinders 411 are fixedly arranged on the inner block 41 and correspond to the four inner plates 6 one by one, and the inner plate 6 is fixedly arranged on the end part of the piston rod of the corresponding driving cylinder 411.

[0047] The packaging box is conveyed from the second conveying mechanism 2 to the two supporting plates 31, the lifting cylinder 42 drives the inner lining block 41 to descend into the packaging box until the inner lining block 41 is in contact with the bottom wall of the packaging box, then the four driving cylinders 411 drive the corresponding inner lining plates 6 to abut against the inner wall of the packaging box to realize the grabbing of the packaging box, in this process, the position of the packaging box can be corrected and centered at the same time; the inner lining block 41 continues to descend, under the abutting action of the inner lining block 41, the two supporting plates 31 rotate downward, the two magnets 311 are separated, the supporting plate 31 rotates downward to a vertical state under the action of gravity, the inner lining block 41 continues to drive the packaging box to descend until it is bonded with the paper sheet on the first conveying mechanism 1, then the inner lining plate 6 retracts, the inner lining block 41 rises to reset, realizing the automatic bonding of the packaging box and the paper sheet.

[0048] The lower side of the inner lining block 41 is bonded with a rubber pad 412, when the inner lining block 41 drives the packaging box to bond with the paper sheet, the inner lining block 41 will generate a certain pressure on the first conveying mechanism 1, therefore, a certain buffer is generated by using the rubber pad 412, thereby reducing the influence on the first conveying mechanism 1.

[0049] The two inner lining plates 6 on the same side of the two supporting plates 31 are both provided with a linkage 7, in the rising process of the inner lining block 41, the linkage 7 drives the corresponding supporting plate 31 to rise until it is reset to a horizontal state. The linkage 7 is provided as a pull rod 71, the lower end of the pull rod 71 is rotationally connected to the upper side of the inner lining plate 6 through a bidirectional torsional spring, the upper end of the pull rod 71 is provided with an elastic hooking piece 8, in a free state, the pull rod 71 is obliquely arranged, and the upper end of the pull rod 71 is located on the side close to the corresponding supporting plate 31 at the lower end, and the upper end of the pull rod 71 is located on the side away from the inner lining plate 6 at the rotationally connected position of the corresponding supporting plate 31.

[0050] Referring to Figure 2 , the two supporting plates 31 are both provided with a hooking groove 9 corresponding to the two elastic hooking pieces 8, the elastic hooking piece 8 is hooked and matched with the corresponding hooking groove 9, the hooking groove 9 is a T-shaped groove, that is, the hooking groove 9 includes a vertical part 91 and a horizontal part 92, the length direction of the vertical part 91 of the hooking groove 9 is perpendicular to the rotation axis direction of the supporting plate 31, and the vertical part 91 penetrates through the end face of the supporting plate 31 close to the other supporting plate 31.

[0051] Referring to Figure 3 and Figure 4 , the elastic hooking piece 8 includes two hooking rods 81 and a compression spring 82, the two hooking rods 81 are both rotationally connected to the end of the pull rod 71, the two hooking rods 81 are in a “V” shape, and the compression spring 82 is fixedly connected between the two hooking rods 81.

[0052] Referring to Figure 5 , Figure 6 , Figure 7, in the process, under the abutting action of the inner lining block 41, the two supporting plates 31 rotate downward, the inner lining block 41 drives the packaging box to continue to descend, at this time, the pull rod 71 and the hooking rod 81 will contact the supporting table 3 and rotate, then the hooking rod 81 abuts against the table top of the supporting plate 31 and moves downward along the table top until separation. After the packaging box and the paper sheet are bonded, the inner lining block 41 rises, at this time, the pull rod 71 will preferentially enter the vertical part 91 of the hooking groove 9, with the rising of the inner lining block 41, the hooking rod 81 enters the horizontal part 92 of the hooking groove 9, the two hooking rods 81 hook the horizontal part 92, then drive the supporting table 3 to rise until the supporting table 3 is reset to a horizontal state.

[0053] With reference to Figure 2 In order to prevent the supporting plate 31 from continuing to rotate upward with the hooking rod 81, two limiting plates 51 are installed on the mounting frame 5, the two limiting plates 51 correspond to the two supporting plates 31 one by one, the limiting plate 51 is located at the rotary connection of the corresponding supporting plate 31, and the supporting plate 31 abuts against the limiting plate 51 when rotating to a horizontal state. That is, the maximum rotation of the supporting plate 31 is limited by the limiting plate 51.

[0054] When the supporting table 3 is reset to a horizontal state, the inner lining block 41 continues to rise, at this time, the two hooking rods 81 will compress the compression spring 82, and the two hooking rods 81 are detached from the hooking groove 9, realizing automatic resetting of the supporting table 3.

[0055] The implementation principle of the packaging box map pasting device in the embodiment of the application is as follows: the conveying box is conveyed from the second conveying mechanism 2 to the two supporting tables 3, the lifting cylinder 42 drives the inner lining block 41 to descend and extend into the packaging box, then the driving cylinder 411 drives the inner lining plate 6 to move and abut against the inner wall of the packaging box, realizing grasping and fixing of the packaging box; the lifting cylinder 42 continues to drive the inner lining block 41 to descend, under the action of the inner lining block 41, the two supporting tables 3 rotate downward to a vertical state, the inner lining block 41 drives the packaging box to bond with the paper sheet on the first conveying mechanism 1, realizing automatic map pasting action; then the inner lining plate 6 retracts and separates from the packaging box, the lifting cylinder 42 drives the inner lining block 41 to rise, in the process, the pull rod 71 enters the vertical part 91 of the hooking groove 9, until the two hooking rods 81 hook the horizontal part 92 of the hooking groove 9, drive the supporting plate 31 to rotate upward until reset to a horizontal state, then the two hooking rods 81 are detached from the hooking groove 9, and the inner lining block 41 is reset. Repeating the above action can realize automatic bonding action of the packaging box and the paper sheet, which helps to reduce labor intensity and improve map pasting efficiency.

[0056] Embodiment 2

[0057] With reference to Figure 8 and Figure 9The difference between the embodiment and the embodiment 1 is that the positioning plate 10 is integrally formed on the supporting plate 31, and the positioning plate 10 is located on the side of the supporting plate 31 far from the second conveying mechanism 2. When the packaging box falls from the second conveying mechanism 2 onto the supporting plate 31, the positioning plate 10 is used to position the packaging box, which helps to prevent the packaging box from falling off the supporting plate 31 due to inertia.

[0058] In addition, when the supporting table 3 is rotated downward to be vertical, the positioning plate 10 plays a guiding role in the lifting of the packaging box.

[0059] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A carton labelling apparatus, characterized by: The application relates to a paper sheet conveying device (1), a packaging box conveying device (2) and a grabbing device (4) for grabbing the packaging box to the paper sheet; the output end of the second conveying device (2) is located above the first conveying device, a supporting table (3) is arranged above the first conveying device (1), the supporting table (3) supports the packaging box output by the conveying end of the second conveying device (2), and the supporting table (3) is arranged in a horizontal rotating mode; the grabbing device (4) comprises an inner lining block (41) arranged above the supporting table (3) in a lifting mode, and inner lining plates (6) for abutting against the inner walls of the packaging box are horizontally slid on the opposite sides of the inner lining block (41). The first conveying device (1) is provided with a mounting frame (5), the supporting table (3) is composed of two supporting plates (31), the two supporting plates (31) are connected to the mounting frame (5) in a horizontal rotating mode, the maximum state of upward rotation of the supporting plates (31) is a horizontal state, the two supporting plates (31) are provided with magnets (311) on the sides away from the rotating connection points, the two supporting plates (31) are rotated in a direction of approaching each other to a horizontal state, the two magnets (311) are attracted to each other, the inner lining plates (6) are provided with linkage members (7) for driving the supporting plates (31) to rotate upward, when the inner lining block (41) drives the packaging box to descend, the supporting plates (31) rotate downward, when the inner lining block (41) rises, the linkage members (7) drive the two supporting plates (31) to rotate to a horizontal state, The inner lining plates (6) are provided with four inner lining plates (6) corresponding to the four inner walls of the packaging box, the inner lining block (41) is provided with four drive cylinders (411) corresponding to the four inner lining plates (6), the piston rods of the drive cylinders (411) are fixed to the corresponding inner lining plates (6), the piston rods of the drive cylinders (411) are telescopically arranged in a horizontal direction and in a direction perpendicular to the corresponding inner walls of the packaging box, The linkage (7) is provided as a pull rod (71), two pull rods (71) are provided, and the two pull rods (71) correspond to the two inner lining plates (6) on the same side of the two supporting plates (31), the lower end of the pull rod (71) is arranged on the upper side of the corresponding inner lining plate (6) through a bidirectional torsional spring, and the upper end of the pull rod (71) is provided with an elastic hooking piece (8); in a free state, the upper end of the pull rod (71) is located on the side away from the inner lining plate (6) of the lower end, and the upper end of the pull rod (71) is located on the side away from the inner lining plate (6) of the rotary connection of the supporting plate (31) on the same side; a hooking groove (9) is formed on the end face of the two supporting plates (31) close to each other, the elastic hooking piece (8) is hooked and matched with the hooking groove (9), when the inner lining block (41) descends, the supporting plate (31) rotates downward, the pull rod (71) rotates to the inner lining plate (6) side under the action of the elastic reset piece and abuts against the supporting plate (31), until the elastic hooking piece (8) is separated from the supporting plate (31); when the inner lining block (41) rises, the elastic hooking piece (8) cooperates with the hooking groove (9) to drive the supporting plate (31) to rotate upward and reset, and the elastic hooking piece (8) is separated from the hooking groove (9); The elastic hooking piece (8) comprises two hooking rods (81) and a compression spring (82), the two hooking rods (81) are rotatably connected at the end of the pull rod (71), the two hooking rods (81) are "V"-shaped, and the compression spring (82) is connected between the two hooking rods (81); the hooking groove (9) is a T-shaped groove, the two hooking rods (81) are hooked and matched with the horizontal part (92) of the hooking groove (9), and the pull rod (71) is inserted and matched with the vertical part (91) of the hooking groove (9).

2. The apparatus of claim 1, wherein: The mounting frame (5) is provided with a lifting cylinder (42), the lifting cylinder (42) is arranged vertically downward, and the inner lining block (41) is arranged at the end of the piston rod of the lifting cylinder (42).

3. The apparatus of claim 1, wherein: The bottom of the inner lining block (41) is provided with a rubber pad (412).

4. The apparatus of claim 1, wherein: The two supporting plates (31) away from the second conveying mechanism (2) are provided with positioning plates (10) for positioning the packaging boxes, when the supporting plate (31) rotates downward to be vertical, the two positioning plates (10) guide the lifting of the packaging boxes.

5. The apparatus of claim 1, wherein: The mounting frame (5) is provided with two horizontally arranged limiting plates (51), the two limiting plates (51) correspond to the two supporting plates (31), and the limiting plate (51) is located at the rotary connection of the corresponding supporting plate (31); when the supporting plate (31) rotates to be horizontal, the limiting plate (51) abuts against the corresponding supporting plate (31).

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