Packaging box edge folding device

Abstract

The utility model provides a packaging box edge folding device which comprises a base, a driving part and an edge folding mechanism, the driving part is installed on the base, the driving part is connected with the edge folding mechanism and used for driving the edge folding mechanism to move in the first direction, the edge folding mechanism comprises a pressing plate assembly and an edge folding assembly, and the pressing plate assembly is movably connected with the edge folding assembly. The pressing plate assembly comprises a driving pin, the edge folding assembly comprises a connecting plate, a guide groove is formed in the connecting plate, at least part of the driving pin is located in the guide groove, the driving pin is arranged to be capable of moving along the guide groove so as to drive the connecting plate to move in the second direction, and the second direction intersects with the first direction. Included angles between the extending direction of the guide groove and the first direction and the second direction are acute angles.

Description

Technical Field

[0001] The present application relates to the technical field of packaging equipment, and in particular to a packaging box folding device. Background Art

[0002] The existing packaging box generally includes a gray board as an internal support and a facial paper as the appearance surface of the packaging box. When processing the packaging box, the gray board is generally first made into a box blank, and then the laminated facial paper is coated on the outer surface of the box blank to obtain the final packaging box product.

[0003] The covering operation of existing hardcover packaging boxes is generally performed manually by sticking the face paper on the outer surface of the box blank. Manual operation has poor production efficiency and covering effect, which is not conducive to enterprise automated production, and has high labor costs and production costs. Although there are face paper wrapping machines on the market, the efficiency and quality of the face paper wrapping machines are not ideal and need to be improved. Utility Model Content

[0004] In response to the above technical problems, the present application provides a packaging box folding device that can achieve the attachment and folding of facial paper.

[0005] According to the embodiment of the present application, the packaging box folding device provided includes a base, a driving member and a folding mechanism, the driving member is installed on the base, the driving member is connected to the folding mechanism, and is used to drive the folding mechanism to move along a first direction, the folding mechanism includes a pressure plate assembly and a folding assembly, the pressure plate assembly and the folding assembly are movably connected, the pressure plate assembly includes a driving pin, the folding assembly includes a connecting plate, a guide groove is provided on the connecting plate, at least part of the driving pin is located in the guide groove, the driving pin is configured to be able to move along the guide groove, and then drive the connecting plate to move along a second direction, the second direction intersects with the first direction, and the angles between the extension direction of the guide groove and the first direction and the second direction are both acute angles.

[0006] In some embodiments, the pressure plate assembly also includes a connecting seat, a pressure plate and a guide rail. The driving member is connected to the connecting seat. The pressure plate and the connecting seat are movably connected in a first direction. The driving pin is installed on the connecting seat. The guide rail is installed on the pressure plate. The connecting plate and the guide rail are movably connected. The guide rail extends along a second direction. The driving pin is configured to be able to move along the guide groove, thereby driving the connecting plate to move along the guide rail.

[0007] In some embodiments, the pressing plate assembly further includes an elastic member, which connects the connecting seat and the pressing plate.

[0008] In some embodiments, the connecting seat includes a base plate and an upper cover, a receiving cavity is formed between the base plate and the upper cover, the driving member is connected to the upper cover, the driving pin is installed on the base plate, a waist-shaped hole is provided on the base plate, and at least part of the connecting plate extends into the receiving cavity from the waist-shaped hole.

[0009] In some embodiments, the waist-shaped hole extends along the second direction, and the length of the waist-shaped hole in the second direction is greater than the length of the connecting plate in the second direction.

[0010] In some embodiments, the pressing plate is located on a side of the bottom plate facing away from the upper cover.

[0011] In some embodiments, the hemming assembly further includes a hemming plate, which is connected to the connecting plate, and the hemming plate is located on a side of the pressure plate facing away from the driving member.

[0012] In some embodiments, the hemming assembly further includes a connecting member, which connects the connecting plate and the hemming plate.

[0013] In some embodiments, the pressing plate assembly further includes a pressing roller, which is connected to the connecting seat. In the second direction, the pressing roller is located on a side of the pressing plate that is away from the connecting piece.

[0014] In some embodiments, the guide groove includes a first end and a second end. In the second direction, the distance from the first end to the folding plate is greater than the distance from the second end to the folding plate. In the first direction, the distance from the first end to the pressure plate is greater than the distance from the second end to the pressure plate.

[0015] The packaging box folding device provided in the embodiment of the present application is provided with a driving member and a folding mechanism connected to the driving member, and the folding mechanism includes a pressure plate assembly and a folding assembly, so that when the driving member drives the folding mechanism to move along a first direction, the pressure plate assembly moves along the first direction and presses the facial paper; by providing a guide groove on the connecting plate in the folding assembly, and the extending direction of the guide groove is an acute angle with the first direction and the second direction, when the driving member drives the folding mechanism to move along the first direction, the driving pin in the pressure plate assembly moves in the guide groove and drives the folding assembly to move along the second direction through the guide groove, thereby causing the folding assembly to fold the facial paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0017] Figure 1 A schematic diagram of the structure of a packaging box folding device, a box blank and a face paper provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of the packaging box folding device, box blank and face paper provided in an embodiment of the present application from another perspective;

[0019] Figure 3 A front view of a packaging box folding device, a box blank and a face paper provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of the structure of a packaging box folding device, a box blank and a face paper in another stage provided in an embodiment of the present application;

[0021] Figure 5 A front view of a packaging box folding device, a box blank and a face paper provided in an embodiment of the present application at another stage;

[0022] Figure 6 A front view of the folding mechanism provided in the embodiment of the present application after the connecting seat and the elastic member are hidden;

[0023] Figure 7 This is a front view of the folding mechanism provided in an embodiment of the present application at another stage after the connecting seat and the elastic member are hidden.

[0024] Description of reference numerals:

[0025] 10. Packaging box folding device; 20. Box blank; 21. First surface; 22. Second surface; 23. Inner cavity; 30. Facial paper;

[0026] 100, base;

[0027] 200, driving member;

[0028] 300, folding mechanism; 310, pressing plate assembly; 311, driving pin; 312, connecting seat; 3121, bottom plate; 3122, upper cover; 3123, accommodating cavity; 3124, waist-shaped hole; 313, pressing plate; 314, guide rail; 315, elastic member; 316, pressing roller; 320, folding assembly; 321, connecting plate; 322, guide groove; 3221, first end; 3222, second end; 323, folding plate; 324, connecting member;

[0029] X, first direction; Y, second direction; Z, extension direction of the guide groove.

[0030] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0032] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0033] It should be understood that, although the terms first, second, third, etc. may be used to describe various information in this article, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this article, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "at the time of..." or "when..." or "in response to determination". Furthermore, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising", "including" indicate that there are described features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions, steps or operations are inherently mutually exclusive in some way. When describing the structure of a component, when a layer or a region is referred to as being "above" or "over" another layer or another region, it may mean being directly above the other layer or another region, or containing other layers or regions between it and the other layer or another region. Moreover, if the component is turned over, the layer or region will be "below" or "below" the other layer or another region. In the embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B only based on A, but B can also be determined based on A and / or other information.

[0034] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0036] In the related art, the covering operation of hardcover packaging boxes is generally performed manually by sticking the face paper on the outer surface of the box blank. Manual operation has poor production efficiency and covering effect, which is not conducive to the company's automated production. In addition, the labor cost and production cost are high. Although there are face paper wrapping machines on the market, the efficiency and quality of the face paper wrapping machines are not ideal and need to be improved.

[0037] In view of this, in order to better understand the present application, the packaging box folding device of the present application embodiment is described in detail below in conjunction with the accompanying drawings. In the accompanying drawings, for the convenience of drawing, the dimensions in the drawings are not necessarily proportional to the actual dimensions. For the clarity of the drawing, some structures in the drawings may be hidden or partially displayed.

[0038] Please refer to Figures 1 to 5 , Figure 1 A schematic diagram of the structure of a packaging box folding device, a box blank and a face paper provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of the packaging box folding device, box blank and face paper provided in an embodiment of the present application from another perspective; Figure 3 A front view of a packaging box folding device, a box blank and a face paper provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of a packaging box folding device, a box blank and a face paper in another stage provided in an embodiment of the present application; Figure 5 This is a front view of the packaging box folding device, box blank and face paper provided in the embodiment of the present application at another stage. Figures 1 to 3 The folding device of the middle packaging box is in the stage where the facial tissue has not yet been squeezed. Figures 4 to 5 The folding device of the middle packaging box is in the folding completion stage.

[0039] like Figures 1 to 5 As shown, the embodiment of the present application provides a packaging box folding device 10, which includes a base 100, a driving member 200 and a folding mechanism 300, wherein the driving member 200 is mounted on the base 100, and the driving member 200 is connected to the folding mechanism 300 to drive the folding mechanism 300 to move along a first direction (the X direction in the figure), and the folding mechanism 300 includes a pressing plate assembly 310 and a folding assembly 320, and the pressing plate assembly 310 and the folding assembly 320 are movably connected, and the pressing plate assembly 310 and the folding assembly 320 are movably connected. 10 includes a driving pin 311, and the folding assembly 320 includes a connecting plate 321. The connecting plate 321 is provided with a guide groove 322. At least part of the driving pin 311 is located in the guide groove 322. The driving pin 311 is configured to be able to move along the guide groove 322, thereby driving the connecting plate 321 to move along a second direction (the Y direction in the figure). The second direction Y intersects with the first direction X, and the angles between the extension direction of the guide groove 322 (the Z direction in the figure) and the first direction X and the second direction Y are both acute angles.

[0040] Optionally, the packaging box includes a box blank 20 made of gray board and a face paper 30 for covering the box blank 20, the box blank 20 includes a first surface 21, a second surface 22, an opening (not shown) and an inner cavity 23, the first surface 21 and the second surface 22 intersect, the first surface 21 is the side surface of the box blank 20, and the second surface 22 is the bottom surface of the box blank 20. The inner cavity 23 is formed between the first surface 21 and the second surface 22, and the opening communicates the inner and outer sides of the inner cavity 23. According to the preparation process of the packaging box, the face paper 30 needs to be attached to the first surface 21 and the second surface 22, and at least part of the face paper 30 is bent 180° from the opening and extends into the inner cavity and attached to the first surface 21 facing the inner cavity 23.

[0041] Optionally, the first direction X is a vertical direction, and the second direction Y is a horizontal direction or slightly inclined to the horizontal direction.

[0042] Optionally, the driving member 200 is a driving component such as a cylinder or a motor.

[0043] When the packaging box folding device 10 is in use, the box blank 20 is placed at a preset position, and the facial paper 30 is covered on the box blank 20, the first surface 21 is perpendicular to the first direction X, and the opening faces the second direction Y. When the driving member 200 drives the folding mechanism 300 to move along the first direction X, the pressing plate assembly 310 moves along the first direction X and presses the facial paper 30 on the first surface 21. At the same time, when the driving pin 311 is driven by the driving member 200 to move along the first direction X, since the angles between the extension direction Z of the guide groove 322 and the first direction X and the second direction Y are all acute angles, the force of the driving pin 311 on the guide groove 322 will have a component force in the second direction Y, and drive the folding assembly 320 to move along the second direction Y, at least part of the folding assembly 320 extends from the opening into the inner cavity 23 along the second direction Y and presses the facial paper 30 on the side of the first surface 21 facing the inner cavity 23, so as to achieve the pressing and folding of the facial paper 30.

[0044] The packaging box folding device 10 provided in the embodiment of the present application is provided with a driving member 200 and a folding mechanism 300 connected to the driving member 200, and the folding mechanism 300 includes a pressing plate assembly 310 and a folding assembly 320, so that when the driving member 200 drives the folding mechanism 300 to move along the first direction X, the pressing plate assembly 310 moves along the first direction X and presses the tissue paper 30. By providing a guide groove 322 on the connecting plate 321 in the folding assembly 320, and the angles between the extension direction Z of the guide groove 322 and the first direction X and the second direction Y are all acute angles, when the driving member 200 drives the folding mechanism 300 to move along the first direction X, the driving pin 311 in the pressing plate assembly 310 moves in the guide groove 322 and drives the folding assembly 320 to move along the second direction Y through the guide groove 322, thereby causing the folding assembly 320 to fold the tissue paper 30.

[0045] In some optional embodiments, the pressure plate assembly 310 further includes a connection seat 312, a pressure plate 313 and a guide rail 314, the driving member 200 is connected to the connection seat 312, the pressure plate 313 and the connection seat 312 are movably connected in the first direction X, the driving pin 311 is installed on the connection seat 312, and the guide rail 314 is installed on the pressure plate 313. The connection plate 321 is movably connected to the guide rail 314, and the guide rail 314 extends along the second direction Y. The driving pin 311 is configured to be able to move along the guide groove 322, thereby driving the connection plate 321 to move along the guide rail 314.

[0046] Optionally, the pressing plate assembly 310 further includes an elastic member 315 , and the elastic member 315 connects the connecting seat 312 and the pressing plate 313 .

[0047] Optionally, the elastic member 315 may be a member with greater elasticity such as a spring, rubber, or foam, and a plurality of elastic members 315 are commonly connected to the connection seat 312 and the pressing plate 313. In the first direction X, the pressing plate 313 is located on the side of the connection seat 312 away from the driving member 200, and the guide rail 314 and the connecting plate 321 are both located on the side of the pressing plate 313 facing the connection seat 312.

[0048] The packaging box folding device 10 provided in the embodiment of the present application is configured such that the connecting plate 321 is movably connected to the guide rail 314, and the guide rail 314 extends along the second direction Y, so that the guide rail 314 restricts the connecting plate 321 to move only along the second direction Y relative to the pressing plate 313. When the driving member 200 drives the folding mechanism 300 to move toward the box blank 20, and the pressing plate 313 has not yet contacted the tissue paper 30, the folding assembly 320 and the pressing plate assembly 310 move synchronously along the first direction X. Until the pressing plate 313 presses the tissue paper 30 tightly against the first surface 21, the first surface 21 restricts the pressing plate 313 from continuing to move in the first direction X, and the elastic member 315 is compressed. The pressing plate 313 restricts the connecting plate 321 from continuing to move in the first direction X, resulting in the driving pin 311 continuing to move in the first direction X, which drives the connecting plate 321 to move along the guide rail 314, i.e., along the second direction Y. Therefore, when the driving member 200 is started, the folding assembly 320 will first move along the first direction X with the pressure plate assembly 310. When the pressure plate 313 presses the tissue paper 30 against the first surface 21, the folding assembly 320 will turn to move along the second direction Y, thereby causing the folding assembly 320 to fold the tissue paper 30.

[0049] In some optional embodiments, the connection base 312 includes a bottom plate 3121 and an upper cover 3122, and a receiving cavity 3123 is formed between the bottom plate 3121 and the upper cover 3122. The driving member 200 is connected to the upper cover 3122, and the driving pin 311 is installed on the bottom plate 3121. The bottom plate 3121 is provided with a waist-shaped hole 3124, and at least part of the connection plate 321 extends into the receiving cavity 3123 from the waist-shaped hole 3124.

[0050] Optionally, the waist-shaped hole 3124 extends along the second direction Y, and the length of the waist-shaped hole 3124 in the second direction Y is greater than the length of the connecting plate 321 in the second direction Y.

[0051] Optionally, the pressing plate 313 is located on a side of the bottom plate 3121 facing away from the upper cover 3122 .

[0052] The packaging box folding device 10 provided in the embodiment of the present application provides a space for the connection plate 321 to move relative to the connection seat 312 by providing a receiving cavity 3123 in the connection seat 312, thereby reducing the volume of the folding mechanism 300. The waist-shaped hole 3124 extending along the second direction Y is provided on the bottom plate 3121 to assist in limiting the connection plate 321 to move only along the second direction Y relative to the connection seat 312.

[0053] In some optional embodiments, the folding assembly 320 further includes a folding plate 323 , which is connected to the connecting plate 321 , and the folding plate 323 is located on a side of the pressure plate 313 away from the driving member 200 .

[0054] Optionally, the hemming assembly 320 further includes a connecting member 324 , and the connecting member 324 connects the connecting plate 321 and the hemming plate 323 .

[0055] Optionally, the side where the pressing plate 313 and the folding plate 323 apply pressure to the face paper 30 is called a working surface, and the working surfaces of the pressing plate 313 and the folding plate 323 are perpendicular to the first direction X. When the packaging box folding device 10 presses the face paper, the pressing plate 313 presses the side of the first surface 21 away from the inner cavity 23, and the folding plate 323 presses the side of the first surface 21 toward the inner cavity 23, that is, at least part of the face paper 30 is bent 180° by the folding plate 323 and then extends into the inner cavity from the opening, and at least part of both sides of the first surface 21 are covered by the face paper 30.

[0056] In some optional embodiments, the pressing plate assembly 310 further includes a pressing roller 316, and the pressing roller 316 is connected to the connecting seat 312. In the second direction Y, the pressing roller 316 is located on a side of the pressing plate 313 away from the connecting member 324.

[0057] Optionally, the pressing roller 316 is connected to the connecting seat 312 and moves synchronously with the connecting seat 312. When the pressing plate assembly 310 approaches the box blank 20 along the first direction X, the pressing roller 316 presses the facial paper 30 against the second surface 22 and continues to slide along the first direction X on the second surface 22.

[0058] The packaging box folding device 10 provided in the embodiment of the present application is provided with a pressure roller 316 connected to the connecting seat 312, so that when the pressure plate assembly 310 approaches the box blank 20 along the first direction X, the pressure roller 316 presses the facial paper 30 against the second surface 22 and flattens the facial paper 30 on the second surface 22, thereby reducing the bubbles between the facial paper 30 and the box blank 20 and improving the wrapping effect of the facial paper 30.

[0059] Please refer to Figure 6 and Figure 7 , Figure 6 A front view of the folding mechanism provided in the embodiment of the present application after the connecting seat and the elastic member are hidden; Figure 7 This is a front view of the folding mechanism provided in the embodiment of the present application at another stage after the connecting seat and the elastic member are hidden. Figure 6 The folding device of the middle packaging box is in the stage where the facial tissue has not yet been squeezed. Figure 7 The folding device of the middle packaging box is in the folding completion stage.

[0060] In some optional embodiments, the guide groove 322 includes a first end 3221 and a second end 3222, and in the second direction Y, the distance from the first end 3221 to the hemming plate 323 is greater than the distance from the second end 3222 to the hemming plate 323. In the first direction X, the distance from the first end 3221 to the pressing plate 313 is greater than the distance from the second end 3222 to the pressing plate 313.

[0061] When the pressing plate 313 presses the first surface 21, the elastic member 315 is pressed, and the driving pin 311 drives the folding plate 323 to extend from the outside of the inner cavity 23 into the inner cavity 23 along the second direction Y through the connecting plate 321 and the connecting member 324, and completes the folding of the tissue paper 30. At this time, at least part of the driving pin 311 is located at the second end 3222 (such as Figure 7 When the driving member 200 drives the pressing plate 313 away from the first surface 21, the driving pin 311 drives the hemming plate 323 to withdraw from the inner cavity 23 along the second direction Y through the connecting plate 321 and the connecting member 324 until the elastic member 315 recovers and the hemming assembly 320 is reset. At this time, at least part of the driving pin 311 is located at the first end 3221 (as shown in FIG. Figure 6 Afterwards, the pressing plate assembly 310 and the folding edge assembly 320 move away from the box blank 20 along the first direction X synchronously.

[0062] The packaging box folding device 10 provided in the embodiment of the present application makes the guide groove 322 gradually tilt toward the direction of the pressure plate 313 in the direction close to the folding plate 323, so that when the driving member 200 drives the pressure plate 313 away from the first surface 21, the folding plate 323 will first withdraw from the inner cavity 23 along the second direction Y, and then follow the pressure plate assembly 310 along the first direction X away from the box blank 20, so as to prevent the folding plate 323 from damaging the box blank 20 and the facial paper 30 when withdrawing.

[0063] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A packaging box folding device, characterized in that: It includes a base, a driving member and a folding mechanism, the driving member is installed on the base, the driving member is connected to the folding mechanism for driving the folding mechanism to move along a first direction, the folding mechanism includes a pressure plate assembly and a folding assembly, the pressure plate assembly and the folding assembly are movably connected, the pressure plate assembly includes a driving pin, the folding assembly includes a connecting plate, the connecting plate is provided with a guide groove, at least part of the driving pin is located in the guide groove, the driving pin is configured to be able to move along the guide groove, and then drive the connecting plate to move along a second direction, the second direction intersects with the first direction, and the extension direction of the guide groove forms an acute angle with the first direction and the second direction.

2. The packaging box folding device according to claim 1, characterized in that: The pressure plate assembly also includes a connecting seat, a pressure plate and a guide rail, the driving member is connected to the connecting seat, the pressure plate and the connecting seat are movably connected in the first direction, the driving pin is installed on the connecting seat, the guide rail is installed on the pressure plate, the connecting plate is movably connected to the guide rail, the guide rail extends along the second direction, and the driving pin is configured to be able to move along the guide groove, thereby driving the connecting plate to move along the guide rail.

3. The packaging box folding device according to claim 2, characterized in that: The pressing plate assembly further comprises an elastic member, wherein the elastic member connects the connecting seat and the pressing plate.

4. The packaging box folding device according to claim 2, characterized in that: The connecting seat includes a base plate and an upper cover, a receiving cavity is formed between the base plate and the upper cover, the driving member is connected to the upper cover, the driving pin is installed on the base plate, a waist-shaped hole is provided on the base plate, and at least part of the connecting plate extends into the receiving cavity from the waist-shaped hole.

5. The packaging box folding device according to claim 4, characterized in that: The waist-shaped hole extends along the second direction, and the length of the waist-shaped hole in the second direction is greater than the length of the connecting plate in the second direction.

6. The packaging box folding device according to claim 4, characterized in that: The pressing plate is located at a side of the bottom plate facing away from the upper cover.

7. The packaging box folding device according to claim 2, characterized in that: The folding assembly further comprises a folding plate, which is connected to the connecting plate and is located on a side of the pressing plate away from the driving member.

8. The packaging box folding device according to claim 7, characterized in that: The hemming assembly further comprises a connecting member, wherein the connecting member connects the connecting plate and the hemming plate.

9. The packaging box folding device according to claim 8, characterized in that: The pressing plate assembly further comprises a pressing roller, which is connected to the connecting seat. In the second direction, the pressing roller is located on a side of the pressing plate that is away from the connecting member.

10. The packaging box folding device according to claim 7, characterized in that: The guide groove includes a first end and a second end. In the second direction, the distance from the first end to the folding plate is greater than the distance from the second end to the folding plate. In the first direction, the distance from the first end to the pressure plate is greater than the distance from the second end to the pressure plate.

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