A box-in-box and box-folding device

Abstract

This invention discloses an inner box containing an outer box and a folding device, including a conveyor and a side forming component, a corner sliding component, a top forming component, a first fixed folding edge, and a second fixed folding edge disposed above the conveyor. The first fixed folding edge and the second fixed folding edge are respectively disposed on the left and right sides of the unfolded cardboard box. The left and right sides of the unfolded cardboard box naturally spring up due to the weight of the material placed inside. The first fixed folding edge and the second fixed folding edge fold the left and right sides of the cardboard box. The side forming component is located in the front and back direction of the unfolded cardboard box and pushes the front and back of the cardboard box upward to fold it. A corner sliding component and a top forming component are respectively disposed at the four corners of the cardboard box. The corner sliding component folds and presses the corners of two adjacent sides of the cardboard box. The top forming component folds the top surfaces of the left and right sides of the cardboard box and the top surfaces of the front and back sides of the cardboard box downward to complete the folding operation.

Description

Technical Field

[0001] This invention relates to an inner box containing an outer box and a folding device, belonging to the field of lithium battery technology. Background Technology

[0002] Currently, the country is strongly advocating for new energy sources, and the lithium battery industry has also seen significant development. Under these circumstances, the requirements for lithium battery production efficiency are increasing, while also placing demands on battery packaging. For example, cylindrical battery packaging boxes have a three-dimensional shape, a multi-faceted structure formed by the movement, folding, and enclosing of several sets of surfaces, which can ensure the battery's stability and safety during transportation.

[0003] Currently, most cylindrical battery packaging boxes are folded manually. Due to the numerous folding steps, manual folding is prone to incomplete folding, and some steps require precise shaping, which is difficult for workers to complete independently. Manual folding is labor-intensive, increasing the burden on enterprises and is inefficient, making it difficult to meet the requirements of large-scale factory-scale folding packaging production. Summary of the Invention

[0004] To address the problems of high labor costs, time consumption, and low efficiency associated with manual box folding, this invention proposes an inner box-in-outer box folding device. The device requires only manual placement of the cardboard box and materials into the equipment. A cardboard limiting plate then holds the box in place, and the material bounces up under pressure. Fixed folding edges on both sides fold the box. A corner sliding assembly folds and presses the corners of adjacent sides into place. Side forming components then push the front and back surfaces of the box upwards. Finally, the top forming components at the four corners work in pairs to fold the top surfaces of the left and right sides downwards, followed by the top surfaces of the front and back sides, completing the folding process. The box is then conveyed out via a conveyor.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A box-and-outer-box folding device, characterized in that it includes a conveyor (8) and a side forming assembly (1), a corner sliding assembly (2), a top forming assembly (4), a first fixed folding edge (5), and a second fixed folding edge (7) disposed above the conveyor (8). The direction extending along the length of the conveyor (8) is defined as the left-right direction, and the direction extending along the width of the conveyor (8) is defined as the front-back direction. The first fixed folding edge (5) and the second fixed folding edge (7) are respectively disposed on the left and right sides of the unfolded box. The material bounces naturally under its own weight, and the first fixed fold (5) and the second fixed fold (7) fold the left and right sides of the paper box. The side forming component (1) is located in the front and back direction of the unfolded paper box and pushes the front and back of the paper box upward to fold it. The four corners of the paper box are respectively provided with a corner sliding component (2) and a top forming component (4). The corner sliding component (2) folds and presses the corners of the two adjacent sides of the paper box, and the top forming component (4) folds the top surfaces of the left and right sides of the paper box and the top surfaces of the front and back sides of the paper box downward to complete the folding work.

[0007] Furthermore, the side forming assembly (1) includes a first cylinder (101), a side forming plate (104), a second cylinder (110), and a floating joint (111). The cylinder body of the first cylinder (101) is fixedly connected to the side forming plate (104) via a forming lifting cylinder mounting bracket (102). The piston rod of the first cylinder (101) is fixedly connected to a first fixed connecting plate (103). The side forming plate (104) is slidably connected to the first fixed connecting plate (103). The side of the first fixed connecting plate closest to the cardboard box is defined as the inner side. The side away from the cardboard box is the outer side; under the action of the first cylinder (101), the side forming plate (104) moves upward to fold the side of the cardboard box upward; the outer side of the first fixed connecting plate (103) is fixedly connected to the second fixed connecting plate (108), the second cylinder (110) is fixedly connected to the second fixed connecting plate (108) through the first cylinder connecting plate (109), and the floating joint (111) is fixedly connected to the second cylinder (110), and the top of the floating joint (1111) is fixedly mounted on the corner sliding assembly (2).

[0008] Furthermore, the corner-folding sliding assembly (2) includes a sliding plate (201), a folding blade (204), and a third cylinder (205). The front and rear ends of the sliding plate (201) are respectively provided with the third cylinder (205). The piston rod of the third cylinder (205) is fixedly connected to the folding blade (204). The third cylinder (205) pushes the folding blade (204) to fold and shape the corner of the cardboard box.

[0009] The sliding plate (201) is slidably mounted on the second connecting fixing plate (108).

[0010] Furthermore, the top surface forming assembly (4) includes a first geared motor connecting plate (401), a geared motor (402), a second geared motor connecting plate (403), a third geared motor connecting plate (404), a transition connecting shaft (405), a swing arm (406), a support rod (407), a connecting block (408), and a friction block (409). The geared motor (402) is fixed on the slide plate (201), and one end of the swing arm (406) is connected to the output of the geared motor (402) through the transition connecting shaft (405). The other end of the swing rod (406) is fixedly connected to the middle of the support rod (407). Friction blocks (409) are fixed at both ends of the support rod (407) through connecting blocks (408). Under the action of the reduction motor (402), the friction blocks (409) are driven to move through the swing rod (406) and the support rod (407). When the reduction motor rotates forward, the front friction block pushes forward to fold the top surfaces of the front and rear sides of the paper box downward. When the reduction motor rotates in reverse, the rear friction block pushes in the opposite direction to fold the top surfaces of the left and right sides of the paper box downward.

[0011] Furthermore, the cylinder body of the third cylinder (205) is fixed on the second cylinder connecting plate (203), and the second cylinder connecting plate (203) is fixedly connected to the slide plate (201) by an L-shaped reinforcing rib (202). One end of the L-shaped reinforcing rib (202) is fixed on the second cylinder connecting plate (203), and the other end is fixed on the slide plate (201).

[0012] Furthermore, the geared motor (402) is fixedly connected to the slide plate (201) via the first geared motor connecting plate (401), the second geared motor connecting plate (403), and the third geared motor connecting plate (404).

[0013] Furthermore, the side forming plate (104) is connected to the first fixed connecting plate (103) via the first slide rail assembly (107);

[0014] The first slide rail assembly (107) includes a first slide rail fixed on the side forming plate (104) and a first slider fixed on the first connecting fixing plate (103), the first slider being slidably connected to the first slide rail.

[0015] Furthermore, the slide plate (201) is slidably mounted on the second connecting fixing plate (108) via the second slide rail assembly (112), and the top of the floating joint 111 is fixedly connected to the bottom of the slide plate 201;

[0016] The second slide rail assembly (112) is provided on a second slide rail fixed on a second connecting plate (108) and a second slider slidably connected on the second slide rail. The two ends of the second connecting plate (108) are respectively provided with the second slide rail assembly (112).

[0017] Furthermore, a cylinder guard plate (206) is provided on the top of the third cylinder, and the cylinder guard plate (206) is fixedly connected to the second cylinder connecting plate (203).

[0018] Furthermore, it also includes cardboard limiting plates (3), which are set in four sets and arranged on both sides of the cardboard box in the front and back directions. One end is fixedly connected to the conveyor, and the other end extends outward in the front and back directions to limit the cardboard box that has not been folded, and can accommodate cardboard boxes of various sizes.

[0019] Compared with the prior art, the beneficial effects of the present invention are reflected in:

[0020] This invention features a simple structure and strong practicality. After the cardboard limiting plate limits the placement of the cardboard box, the material is placed inside. The material's gravity causes the first and second fixed folding edges on both sides to spring up, completing the folding of the left and right sides of the cardboard box. The corner sliding component folds and presses the corners of adjacent sides to fix the shape. Then, the side forming component pushes the front and back surfaces of the cardboard box upwards and folds them. Finally, the top surface forming components at the four corners work in pairs to first push the top surfaces of the left and right sides of the cardboard box downwards, and then push the top surfaces of the front and back sides of the cardboard box downwards, thus completing the folding process. The box is then conveyed out by a conveyor.

[0021] 2. This invention reduces labor costs and optimizes enterprise costs, solving the technical problems of high labor and time costs and low work efficiency caused by manual box folding. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the overall structure of the side forming component of the present invention.

[0024] Figure 3 This is a schematic diagram of the overall structure of the angle sliding component of the present invention.

[0025] Figure 4 This is a schematic diagram of the overall structure of the top surface forming component of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1. Side forming assembly; 2. Corner sliding assembly; 3. Cardboard limiting plate; 4. Top forming assembly; 5. First fixed fold edge; 6. Cardboard box; 7. Second fixed fold edge; 8. Conveyor;

[0027] 101. First cylinder; 102. Forming lifting cylinder mounting bracket; 103. First fixed connecting plate; 104. Side forming plate; 105. Second fixed connecting plate; 106. Third fixed connecting plate; 107. First slide rail assembly; 108. Fourth fixed connecting plate; 109. First cylinder connecting plate; 110. Second cylinder; 111. Floating joint; 112. Second slide rail assembly;

[0028] 201. Slide plate; 202. L-shaped reinforcing rib; 203. Second cylinder connecting plate; 204. Folding blade; 205. Third cylinder; 206. Cylinder guard plate;

[0029] 401. First geared motor connecting plate; 402. Geared motor; 403. Second geared motor connecting plate; 404. Third geared motor connecting plate; 405. Transition connecting shaft; 406. Swing rod; 407. Support rod; 408. Connecting block; 409. Friction block. Detailed Implementation

[0030] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] 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 the present invention. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0038] like Figures 1-4As shown, the inner box containing an outer box and folding device of the present invention includes a conveyor 8 and a side forming component 1, a corner sliding component 2, a top surface forming component 4, a first fixed folding edge 5, and a second fixed folding edge 7 disposed above the conveyor 8. The direction extending along the length of the conveyor 8 is defined as the left-right direction, and the direction extending along the width of the conveyor 8 is defined as the front-back direction. The first fixed folding edge 5 and the second fixed folding edge 7 are respectively disposed in the left-right direction of the unfolded cardboard box. The left and right sides of the unfolded cardboard box naturally bounce up due to the weight of the material placed inside. The first fixed folding edge 5 and the second fixed folding edge 7 fold the left and right sides of the cardboard box. The side forming component 1 is located in the front-back direction of the unfolded cardboard box and pushes the front and back of the cardboard box upward to fold it. The corner sliding component 2 and the top surface forming component 4 are respectively disposed at the four corners of the cardboard box. The corner sliding component 2 folds and presses the corners of two adjacent sides of the cardboard box. The top surface forming component 4 folds the top surfaces of the left and right sides of the cardboard box and the top surfaces of the front and back sides of the cardboard box downward to complete the folding operation.

[0039] In one embodiment, the side forming assembly 1 includes a first cylinder 101, a side forming plate 104, a second cylinder 110, and a floating joint 111. The cylinder body of the first cylinder 101 is fixedly connected to the side forming plate 104 via a forming lifting cylinder mounting bracket 102. The piston rod of the first cylinder 101 is fixedly connected to a first fixed connecting plate 103. The side forming plate 104 is slidably connected to the first fixed connecting plate 103. The side of the first fixed connecting plate 103 closest to the cardboard box is defined as the inner side, and the side away from the cardboard box is defined as the outer side. Under the action of the first cylinder 101, the side forming plate 104 moves upward to fold the side of the cardboard box upward. A second fixed connecting plate 108 is fixedly connected to the outer side of the first fixed connecting plate 103. The second cylinder 110 is fixedly connected to the second fixed connecting plate 108 via a first cylinder connecting plate 109, and the floating joint 111 is fixedly connected to the piston rod of the second cylinder 110. The top of the floating joint 111 is fixedly mounted on the corner sliding assembly 2.

[0040] In one embodiment, the corner sliding assembly 2 includes a sliding plate 201, a folding blade 204, and a third cylinder 205. The third cylinder 205 is respectively provided at the front and rear ends of the sliding plate 201. The piston rod of the third cylinder 205 is fixedly connected to the folding blade 204. The shape of the folding blade 204 is adapted to the shape of the corner of the cardboard box. The third cylinder 205 pushes the folding blade 204 to fold and shape the corner of the cardboard box.

[0041] The slide plate 201 is slidably mounted on the second connecting and fixing plate 108.

[0042] In one embodiment, the top surface forming assembly 4 includes a geared motor 402, a transition connecting shaft 405, a swing arm 406, a support rod 407, a connecting block 408, and a friction block 409. The geared motor 402 is fixedly mounted on the slide plate 201. One end of the swing arm 406 is fixedly connected to the output end of the geared motor 402 through the transition connecting shaft 405, and the other end of the swing arm 406 is fixedly connected to the middle part of the support rod 407. The two ends of the support rod 407 are fixedly provided with friction blocks 409 through the connecting blocks 408. Under the action of the geared motor 402, the friction blocks 409 are driven to move through the swing arm 406 and the support rod 407. When the geared motor rotates forward, the front friction block pushes forward to fold the top surfaces of the front and rear sides of the cardboard box downward. When the geared motor rotates in reverse, the rear friction block pushes in the opposite direction to fold the top surfaces of the left and right sides of the cardboard box downward.

[0043] In one embodiment, the cylinder body of the third cylinder 205 is fixed on the second cylinder connecting plate 203. The second cylinder connecting plate 203 is fixedly connected to the slide plate 201 by an L-shaped reinforcing rib 202. One end of the L-shaped reinforcing rib 202 is fixed on the second cylinder connecting plate 203, and the other end is fixed on the slide plate 201.

[0044] In one embodiment, the geared motor 402 is fixedly connected to the slide plate 201 via a first geared motor connecting plate 401, a second geared motor connecting plate 403, and a third geared motor connecting plate 404.

[0045] Specifically, mounting holes for mounting the geared motor (402) are respectively opened at both ends of the slide plate 201 corresponding to the positions of the geared motor 402. The first geared motor connecting plate 401 and the second geared motor connecting plate 403 are respectively located on both sides of the mounting holes and their lower ends are fixedly connected to the slide plate. The third geared motor connecting plate 404 has a through hole for the output shaft of the geared motor to pass through, and both ends of the third geared motor connecting plate 404 are respectively fixed to the upper ends of the first geared motor connecting plate 401 and the second geared motor connecting plate 403.

[0046] In one embodiment, the side forming plate 104 is connected to the first fixed connecting plate 103 via a first slide rail assembly 107;

[0047] The first slide rail assembly 107 includes a first slide rail fixed on the side forming plate 104 and a first slider fixed on the first connecting fixing plate 103, the first slider being slidably connected to the first slide rail.

[0048] In one embodiment, the slide plate 201 is slidably mounted on the second connecting and fixing plate 108 via the second slide rail assembly 112, and the top of the floating joint 111 is fixedly connected to the bottom of the slide plate 201.

[0049] The second slide rail assembly 112 is disposed on a second slide rail fixed on a second connecting plate 108 and a second slider slidably connected on the second slide rail. The second slide rail assembly 112 is disposed at both ends of the second connecting plate 108.

[0050] In one embodiment, a cylinder guard plate 206 is provided on the top of the third cylinder, and the cylinder guard plate 206 is fixedly connected to the second cylinder connecting plate 203.

[0051] In one embodiment, a cardboard limiting plate 3 is also included, which is provided in four sets and arranged in the front and back directions on both sides of the cardboard box. One end is fixedly connected to the conveyor, and the other end extends outward in the front and back direction to limit the cardboard box that has not been folded, and can accommodate cardboard boxes of various sizes.

[0052] After the cardboard limiting plate 3 limits the placement of the cardboard box, the material is placed inside the cardboard box. The left and right sides bounce up due to the gravity of the material, and the first fixed folding edge 5 and the second fixed folding edge 7 on the left and right sides complete the folding of the left and right sides of the cardboard box. The corner sliding component 2 folds and presses the corners of the adjacent two sides to fix the shape. Then, the side forming component 1 pushes the front and back sides of the cardboard box upward to fold it. Finally, the top surface forming components 4 at the four corners cooperate in pairs to first push the top sides of the cardboard box downward to fold it, and then push the top sides of the front and back sides of the cardboard box downward to fold it. This completes the folding process, and the box is then conveyed out by a conveyor.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A box-in-box and box-folding device, characterized in that, The system includes a conveyor (8) and a side forming assembly (1), a corner sliding assembly (2), a top forming assembly (4), a first fixed folding edge (5), and a second fixed folding edge (7) disposed above the conveyor (8). The direction extending along the length of the conveyor (8) is defined as the left-right direction, and the direction extending along the width of the conveyor (8) is defined as the front-back direction. The first fixed folding edge (5) and the second fixed folding edge (7) are respectively disposed on the left and right sides of the unfolded cardboard box. The left and right sides of the unfolded cardboard box are separated by the weight of the material placed inside. Then it pops up, and the first fixed folding edge (5) and the second fixed folding edge (7) fold the left and right sides of the paper box; the side forming component (1) is located in the front and back direction of the unfolded paper box and pushes the front and back of the paper box upward to fold; the four corners of the paper box are respectively provided with corner sliding component (2) and top surface forming component (4). The corner sliding component (2) folds and presses the corners of the two adjacent sides of the paper box, and the top surface forming component (4) folds the top surfaces of the left and right sides of the paper box and the top surfaces of the front and back sides of the paper box downward to complete the folding work; The side forming assembly (1) includes a first cylinder (101), a side forming plate (104), a second cylinder (110), and a floating joint (111). The cylinder body of the first cylinder (101) is fixedly connected to the side forming plate (104) via a forming lifting cylinder mounting bracket (102). The piston rod of the first cylinder (101) is fixedly connected to a first fixed connecting plate (103). The side forming plate (104) is slidably connected to the first fixed connecting plate (103). The side of the first fixed connecting plate closest to the paper box is defined as the inner side, and the side furthest from the paper box is defined as the outer side. One side of the box is the outer side; under the action of the first cylinder (101), the side forming plate (104) moves upward to fold the side of the paper box upward; the outer side of the first fixed connecting plate (103) is fixedly connected to the second fixed connecting plate (108), the second cylinder (110) is fixedly connected to the second fixed connecting plate (108) through the first cylinder connecting plate (109), and the floating joint (111) is fixedly connected to the piston rod of the second cylinder (110), and the top of the floating joint (111) is fixedly mounted on the corner sliding assembly (2); The corner-folding sliding assembly (2) includes a sliding plate (201), a folding blade (204), and a third cylinder (205). The third cylinder (205) is provided at both the front and rear ends of the sliding plate (201). The piston rod of the third cylinder (205) is fixedly connected to the folding blade (204). The shape of the folding blade (204) is adapted to the shape of the corner of the cardboard box. The third cylinder (205) pushes the folding blade (204) to fold and shape the corner of the cardboard box. The sliding plate (201) is slidably mounted on the second connecting fixing plate (108); The slide plate (201) is slidably mounted on the second connecting fixing plate (108) via the second slide rail assembly (112), and the top of the floating joint (111) is fixedly connected to the bottom of the slide plate (201); The second slide rail assembly (112) is provided on a second slide rail fixed on a second connecting plate (108) and a second slider slidably connected on the second slide rail. The two ends of the second connecting plate (108) are respectively provided with the second slide rail assembly (112). The top surface forming assembly (4) includes a first geared motor connecting plate (401), a geared motor (402), a second geared motor connecting plate (403), a third geared motor connecting plate (404), a transition connecting shaft (405), a swing arm (406), a support rod (407), a connecting block (408), and a friction block (409). The geared motor (402) is fixed on the slide plate (201), and one end of the swing arm (406) is fixed to the output end of the geared motor (402) through the transition connecting shaft (405). The other end of the swing arm (406) is fixedly connected to the middle of the support rod (407). The two ends of the support rod (407) are fixed with friction blocks (409) through connecting blocks (408). Under the action of the reduction motor (402), the friction blocks (409) are driven to move through the swing arm (406) and the support rod (407). When the reduction motor rotates forward, the front friction block pushes forward to fold the top surface of the front and rear sides of the paper box downward. When the reduction motor rotates in reverse, the rear friction block pushes in the opposite direction to fold the top surface of the left and right sides of the paper box downward.

2. The inner box containing the outer box and the folding box device as described in claim 1, characterized in that, The cylinder body of the third cylinder (205) is fixed on the second cylinder connecting plate (203). The second cylinder connecting plate (203) is fixedly connected to the slide plate (201) by an L-shaped reinforcing rib (202). One end of the L-shaped reinforcing rib (202) is fixed on the second cylinder connecting plate (203), and the other end is fixed on the slide plate (201).

3. The inner box containing the outer box and the folding box device as described in claim 2, characterized in that, The geared motor (402) is fixedly connected to the slide plate (201) through the first geared motor connecting plate (401), the second geared motor connecting plate (403), and the third geared motor connecting plate (404).

4. The inner box containing the outer box and the folding box device as described in claim 2, characterized in that, The side forming plate (104) is connected to the first fixed connecting plate (103) via the first slide rail assembly (107); The first slide rail assembly (107) includes a first slide rail fixed on the side forming plate (104) and a first slider fixed on the first connecting fixing plate (103), the first slider being slidably connected to the first slide rail.

5. The inner box containing the outer box and the folding box device as described in claim 3, characterized in that, The top of the third cylinder is provided with a cylinder guard plate (206), which is fixedly connected to the second cylinder connecting plate (203).

6. The inner box containing the outer box and the folding box device as described in claim 1, characterized in that, It also includes cardboard limiting plates (3), which are set in four sets and arranged in the front and back directions on both sides of the cardboard box. One end is fixedly connected to the conveyor, and the other end extends outward in the front and back direction to limit the cardboard box that has not been folded. It can also accommodate cardboard boxes of various sizes.

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