A fully paper packaging device and the technological steps for cutting the fully paper packaging

Abstract

The present invention provides a full-paper packaging device and a process step for cutting full-paper packaging. The device includes a housing and also includes a pair of slide rail kits; each slide rail kit includes a card slot and two card plates; the card slot includes: a bottom plate and two oppositely arranged clamping plates; the bottom plate is respectively connected to the sides of the two clamping plates and correspondingly forms the bottom and two side walls of the card slot; U-shaped grooves are respectively formed in the sides near the two ends of the clamping plates, and the openings of the U-shaped grooves face the same direction as the opening of the card slot; a convex column is provided at the bottom of the U-shaped groove; a groove gap is formed between the convex column and the side walls on both sides of the U-shaped groove; the card plate is provided with two grooves corresponding to the groove gap; the groove gap and the grooves are mutually embedded to form a variable-size accommodating space between the side wall of the card slot and the card plate; in the assembled state, the two end sides of the electronic device are embedded in the accommodating space and are loaded into the housing together with the slide rail kits; through the full-paper packaging device of the present invention, packaging solutions can be provided for a variety of electronic devices with different sizes.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic device packaging, and particularly relates to a fully paper packaging device. Background Art

[0002] Currently, most of the packages on the market use cardboard boxes plus plastic cushions. Due to the diversity of materials, it is not environmentally friendly and does not conform to the current environmental protection concept. In addition, in the existing packaging device, the material of the cushioning component in the package is selected to be the same as that of the cardboard box for easy recycling. However, due to the poor commonality of paper packaging, a separate paper cushioning scheme needs to be designed for each packaging project, resulting in a large amount of materials required, an increase in the factory operation process, correspondingly, a large amount of waste, high costs, and it is not easy to achieve mass production, waste of paper, and inability to meet the concept of common use and universality. Summary of the Invention

[0003] In view of the above problems existing in the prior art, the present invention provides a fully paper packaging device with a simple structure, easy to open the package, simple operation, and capable of meeting the common use of at least three different sizes of electronic devices.

[0004] To achieve the above object, the technical solution adopted in the embodiment of the present invention is:

[0005] On the one hand, the present invention provides a fully paper packaging device, which includes a housing; the fully paper packaging device further includes a pair of slide rail kits; the slide rail kit includes: a card slot and two card plates; wherein, the card slot includes: a bottom plate and two oppositely arranged clamping plates; the bottom plate is respectively connected to the sides of the two clamping plates and correspondingly forms the bottom and two side walls of the card slot; U-shaped grooves are respectively formed on the sides near the two ends of the clamping plate, and the opening of the U-shaped groove faces the same direction as the opening of the card slot; a convex column is provided at the bottom of the U-shaped groove; a groove gap is formed between the convex column and the side walls on both sides of the U-shaped groove; the card plate is provided with two adjacent grooves corresponding to the groove gap, and the opening directions of the grooves are the same; the groove gap and the grooves are mutually embedded to form a detachable connection between the card slot and the card plate, and an accommodating space with a variable size is formed between the side wall of the card slot and the card plate; in the assembled state, both ends of the electronic device are embedded in the accommodating space and are installed in the housing together with the slide rail kit.

[0006] In some embodiments of the present disclosure, a columnar portion is formed between the two grooves, and the width of the columnar portion matches the width of the card slot.

[0007] In some embodiments of the present disclosure, through holes are formed in the clamping plate, and the through holes are located below the U-shaped grooves; a convex portion is provided at the bottom of the through holes; the convex portion and the side edges of the through holes respectively form gaps; the two grooves are provided with convex platforms on the side walls close to the side edges of the clamping plate; the end portions of the convex platforms face the side walls away from the side edges of the clamping plate; in the assembled state, the convex platforms are embedded in the gaps.

[0008] In some embodiments of the present disclosure, the clamping plate includes an inner layer and an outer layer; the surface of the inner layer facing the inner side of the card slot forms the inner surface of the side wall of the card slot, and the surface of the outer layer facing the outer side of the card slot forms the outer surface of the side wall of the card slot; the inner layer and the outer layer are connected at one end on their respective upper sides, and the outer surface of the side wall formed by the outer layer forms a free surface, so as to form a gap with a downward opening and variable gap between the inner layer and the outer layer.

[0009] In some embodiments of the present disclosure, the part of the outer layer located below the through holes on the side facing downward extends downward to form a support portion, and the number of the support portions is the same as the number of the through holes.

[0010] In some embodiments of the present disclosure, adjacent first concave grooves are provided between the support portions; a second concave groove is provided on one side of the clamping plate opposite to the first concave groove, and the opening direction of the second concave groove is opposite to the opening direction of the first concave groove.

[0011] In some embodiments of the present disclosure, the all-paper packaging device further includes an adjusting member; the adjusting member includes a bottom plate portion, a clamping plate portion, a U-shaped groove portion, a convex column portion, a groove gap portion and a third concave groove portion, and the cross-section of the adjusting member is configured as a U-shaped structure; the adjusting member is embedded in the gap through the clamping plate portion, and the upper surface of the bottom plate portion is attached to the lower surface of the bottom plate, and the clamping plate portion, the U-shaped groove portion, the convex column portion, the groove gap portion and the third concave groove portion are respectively aligned with the corresponding clamping plate, U-shaped groove, convex column, groove gap and second concave groove.

[0012] In some embodiments of the present disclosure, the tops of the convex columns, the convex portions and the convex platforms are provided with rounded corners.

[0013] In some embodiments of the present disclosure, the bottom plate and the two clamping plates are integrally formed.

[0014] On the other hand, the present invention also provides a process step for cutting an all-paper packaging, which is used to manufacture the all-paper packaging device, and the process step includes:

[0015] The first step is to divide the flat cardboard into two identical regions;

[0016] In the second step, cut at the middle position of each of the said regions to obtain the first splints forming the cardboard, and form notches corresponding to the said regions.

[0017] In the third step, cut the planar cardboard with notches after cutting to obtain the second splints forming the card slots.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The all-paper packaging device of the embodiment of the present invention realizes the multi-usage of one material (cardboard substrate) and sharing with the existing cartons by setting a slide rail kit including card slots and two cardboard panels. In particular, due to the design concept of using slide rails (guide rails), the packaging structure is more concise, reducing the types of required materials. During the actual production preparation process, the possibility of misoperation on the production line is effectively reduced. In addition, since the card slots and the cardboard panels share one material, almost no excessive waste will be generated after the whole scheme is typeset, and since the cardboard panels can be obtained from the waste, the material cost and production cost are effectively reduced.

[0020] The all-paper packaging device of the embodiment of the present invention can meet the requirements of a set of packaging schemes shared by electronic devices of various sizes by adjusting the mutual positional relationship between the card slots and the two cardboard panels, improving the versatility and sharing of the all-paper packaging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with alphabetical suffixes or different alphabetical suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example and not limitation, and are used together with the description and the claims to explain the disclosed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be an exhaustive or exclusive embodiment of the device or method.

[0022] Figure 1 It is a schematic structural diagram of the slide rail kit of the all-paper packaging device of the embodiment of the present invention;

[0023] Figure 2 It is an exploded view of the slide rail kit of the all-paper packaging device of the embodiment of the present invention;

[0024] Figure 3 It is a schematic structural diagram of the card slot of the all-paper packaging device of the embodiment of the present invention;

[0025] Figure 4 It is a top view of the card slot of the all-paper packaging device of the embodiment of the present invention;

[0026] Figure 5Schematic structural diagram of the cardboard of the all-paper packaging device according to the embodiment of the present invention.

[0027] Explanation of reference numerals

[0028] 1 - Card slot;

[0029] 10 - Bottom plate;

[0030] 11 - Clamping plate;

[0031] 110 - U-shaped groove; 111 - Convex column; 112 - Groove gap; 113 - Through hole; 114 - Protruding portion; 115 - Notch;

[0032] 116 - First concave groove; 117 - Second concave groove; 118 - Inner layer; 119 - Outer layer;

[0033] 120 - Gap; 121 - Support portion; 122 - Support body;

[0034] 2 - Cardboard;

[0035] 20 - Groove; 21 - Column portion; 22 - Boss;

[0036] 3 - Adjusting member

[0037] 30 - Bottom plate portion; 31 - Clamping plate portion; 32 - U-shaped groove portion; 33 - Convex column portion; 34 - Groove gap portion;

[0038] 35 - Third concave groove portion Detailed implementation manners

[0039] Next, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings, but it is not a limitation of the present invention. To enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail below with reference to the accompanying drawings and specific implementation manners. Next, embodiments of the present disclosure will be further described in detail with reference to the accompanying drawings and specific embodiments, but it is not a limitation of the present disclosure.

[0040] All terms used in the present disclosure (including technical terms or scientific terms) have the same meaning as understood by those of ordinary skill in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0041] For technologies, methods, and devices known to those of ordinary skill in the relevant art, they may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.

[0042] At present, since most packaging uses cartons plus plastic cushions, and the diversity of packaging materials is not environmentally friendly; in addition, paper packaging requires a separate customized solution for each packaging project, which cannot meet the concept of sharing and universality. Therefore, the present invention provides a packaging solution that can accommodate at least three different sizes of electronic devices. It should be noted that in the embodiments of the present invention, the electronic device is not limited to a laptop computer, but can also be a tablet computer, a monitor, a mobile phone, a television, etc.

[0043] On the one hand, a paper-only packaging device is provided, combined with Figures 1 to 5 , the paper-only packaging device includes a housing; the paper-only packaging device further includes a pair of slide rail kits; the slide rail kit includes: a slot 1 and two clamping plates 2; wherein, the slot 1 includes: a bottom plate 10 and two oppositely arranged clamping plates 11; the bottom plate 10 is respectively connected to the sides of the two clamping plates 11, and correspondingly forms the bottom and two side walls of the slot 1; U-shaped grooves 110 are respectively opened on the sides near the two ends of the clamping plate 11, and the opening of the U-shaped groove 110 faces the same direction as the opening of the slot 1; a convex column 111 is provided at the bottom of the U-shaped groove 110; a groove gap 112 is formed between the convex column 111 and the side walls on both sides of the U-shaped groove 110, and in the embodiments of the present invention, each clamping plate 11 includes two groove gaps 112; the clamping plate 2 is provided with two adjacent grooves 20 corresponding to the groove gaps 112, and the opening directions of the grooves 20 are the same; the groove gaps 112 and the grooves 20 are mutually embedded to form a detachable connection between the slot 1 and the clamping plate 2, and a variable-size accommodation space is enclosed between the side wall of the slot 1 and the clamping plate 2; in the assembled state, both ends of the electronic device are embedded in the accommodation space, and the slide rail kit is loaded into the housing.

[0044] In the above embodiments of the present invention, by adjusting the relative position relationship between the slot 1 and the two clamping plates 2, that is, adjusting the position relationship between the clamping plate 2 and the clamping plate 11 of the slot 1, that is to say, adjusting the position of the clamping plate 2 in the groove gap 112 of the clamping plate 11, thereby changing the distance between the two oppositely arranged clamping plates 2, and finally meeting the requirement of sharing a set of packaging solutions for at least three sizes of electronic devices. Correspondingly, the versatility and sharing of the paper-only packaging device are also improved.

[0045] To meet the personalized needs of users, that is, the requirement for the all-paper packaging device to be able to package electronic devices within different size ranges, it can be achieved by increasing the number of the convex columns 111 in the U-shaped groove 110. This not only requires a groove gap 112 to be provided between the convex column 111 close to the side wall of the U-shaped groove 110 and the corresponding side wall of the U-shaped groove 110, but also requires groove gaps 112 with the same spacing to be provided between each adjacent convex column 111. Thus, by adjusting the number of the groove gaps 112, the distance between the clamping plates 2 is changed, and further a larger accommodation space with a larger variation range is provided. At the same time, the number of the convex portions 114 is correspondingly increased to correspond to the structure and number of the convex columns 111 to meet the requirement of adjusting the distance between the clamping plates 2. Of course, in addition to setting the same number of groove gaps 112 at the end sides of the current clamping plate 11 respectively, for example, both are selected to set two groove gaps 112; different numbers of groove gaps 112 can also be selected. For example, two groove gaps 112 are selected to be set on one side of the clamping plate 11, while three groove gaps 112 are selected to be set on the other side of the same clamping plate 11, so as to meet the requirement of packaging more different-sized electronic devices.

[0046] It should be noted that in this embodiment, unless otherwise specified, the structures of the two clamping plates 11 are the same. Further, they can be symmetrical, that is, all components on the clamping plate 11 are correspondingly arranged. For example, three groove gaps 112 are set on one side of a clamping plate 11, and the same number of groove gaps 112, that is, three groove gaps 112, are also set on the corresponding side of the other clamping plate 11 to meet the requirement of adjusting the position of the clamping plate 2. The specific setting method is not further limited and can be adjusted according to actual needs. The same applies hereinafter.

[0047] Of course, considering the application scenario of the all-paper packaging device, strict precision is not required. It is only necessary to ensure that the surface of the electronic device to be packaged is in full contact with the inner surface of the accommodation space of the all-paper packaging device.

[0048] In one embodiment, in combination with Figure 1 and Figure 5 , a columnar portion 21 is formed between the two grooves 20, and the width of the columnar portion 21 matches the width of the card slot 1. Through this columnar portion 21, the two clamping plates 11 on both sides can be prevented from approaching each other, thereby improving the resistance to the pressure from the outside of the packaging device and accordingly improving the safety protection of the electronic device. Preferably, according to the structural parameters of the electronic device, the thickness of the clamping plate 2 and the width of the columnar portion 21 provided thereon are correspondingly selected to provide a set external pressure as the standard, which is not further limited herein.

[0049] In one embodiment, in combination with Figures 1 to 3, through holes 113 are formed in the clamping plates 11, and the through holes 113 are located below the U-shaped grooves 110. In this embodiment, each clamping plate 11 includes two through holes 113; a convex portion 114 is provided at the bottom of the through hole 113; the convex portion 114 and the side edges of the through hole 113 respectively form a notch 115; convex platforms 22 are provided on the side walls of the two grooves 20 close to the side edge of the clamping plate 2; the end of the convex platform 22 faces the side wall away from the side edge of the clamping plate 2; in the assembled state, the convex platform 22 is embedded in the notch 115. Through this structure, the clamping plate 2 can be effectively prevented from moving along the length direction of the card slot 1. Correspondingly, the size of the accommodating space enclosed by the side wall of the card slot 1 and the clamping plate 2 is limited, thereby providing good safety protection and avoiding the shaking or movement of the electronic device in the accommodating space during the logistics transportation process due to the movement of the clamping plate 2, resulting in damage to the electronic device and unnecessary economic losses.

[0050] In one embodiment, in combination with Figures 1 to 3 , the clamping plate 11 includes an inner layer 118 and an outer layer 119; the surface of the inner layer 118 facing the inside of the card slot 1 forms the inner surface of the side wall of the card slot 1, and the surface of the outer layer 119 facing the outside of the card slot 1 forms the outer surface of the side wall of the card slot 1; the inner layer 118 and the outer layer 119 are connected at their upper ends on each side, and the outer surface of the side wall formed by the outer layer 119 forms a free surface to form a gap 120 with an opening facing downward and a variable gap between the inner layer 118 and the outer layer 119. Through this setting method, a beneficial effect of buffer protection can be provided. Especially during long-distance transportation and the sorting and flowing operation process in the logistics center, bumps and knocks will inevitably occur. Since the gap 120 is provided on the clamping plate 11 in the embodiment of the present invention, when the gap 120 is subjected to an external force, the external force acting on the electronic device can be reduced or decreased through the buffering effect. Of course, by providing the gap 120, another beneficial effect can also be provided through combination with other components, which will be introduced in detail later.

[0051] Furthermore, in the above embodiment, in combination with Figures 1 to 3, a part of the outer layer 119 located below the through hole 113 on the downward-facing side extends downward to form a support portion 121. The number of support portions 121 is the same as the number of through holes 113, that is, each clamping plate 11 includes two support portions 121; further, adjacent first concave grooves 116 are provided between the support portions 121; on one side of the clamping plate 11 opposite to the first concave groove 116, a second concave groove 117 is provided, and the opening direction of the second concave groove 117 is opposite to the opening direction of the first concave groove 116. Further, a support body 122 is formed between adjacent first concave grooves 116 on the same clamping plate 11, and the end surface of the support body 122 and the end surface of the support portion 121 are in the same plane. Through this setting method, the all-paper packaging device can contact the inner surface of the housing through the support portion 121 and the support body 122. It can improve the stability of the support by reducing the contact area with the housing. At the same time, through the support body 122, it can effectively prevent the clamping plate 11 from deforming due to the long-term gravity of the weight of the electronic device, thus losing the effective protection of the electronic device.

[0052] Further, in one embodiment, in combination with Figures 1 to 4 , the all-paper packaging device further includes an adjusting member 3; the adjusting member 3 includes a bottom plate portion 30, a clamping plate portion 31, a U-shaped groove portion 32, a convex column portion 33, a groove gap portion 34, and a third concave groove portion 35. The cross-section of the adjusting member 3 is configured as a U-shaped structure; the adjusting member 3 is embedded in the gap 120 through the clamping plate portion 31, and the upper surface of the bottom plate portion 30 is attached to the lower surface of the bottom plate 10. The clamping plate portion 31, the U-shaped groove portion 32, the convex column portion 33, the groove gap portion 34, and the third concave groove portion 35 are respectively aligned with the corresponding clamping plate 11, U-shaped groove 110, convex column 111, groove gap 112, and second concave groove 117. In this embodiment, through the clamping plate portion 31 of the adjusting member 3 being embedded in the gap 120, on this basis, the overall thickness of the inner layer 118 and the outer layer 119 of the clamping plate portion 31 and the clamping plate 11 after stacking increases. Since the positions of the two grooves 20 on the clamping plate 2 are fixed, the distance between the two clamping plates 11 (that is, the two side walls of the card slot 1) is reduced. Through this design structure, when the thickness of the electronic device is less than the distance between the clamping plates 11, the clamping plates 11 can clamp the electronic device, and it also has the beneficial effect of firmly fixing the electronic device in the accommodation space.

[0053] Further, in combination with Figures 1 to 5 , the tops of the convex column 111, the convex portion 114, and the convex platform 22 are provided with rounded corners. Through this setting method, during the assembly and packaging process, it can avoid scratching the surfaces of the operators and the electronic device.

[0054] In one embodiment, in combination with Figures 1 to 4, the bottom plate 10 and the two clamping plates 11 are integrally formed. The design concept of this structure is that the overall structure of the card slot 1 can be realized with only a limited number of folding times to meet the requirements of packaging electronic devices.

[0055] Furthermore, it should be noted that in the embodiments of the present invention, the material used for the all-paper packaging device is cardboard. Since cardboard has a thickness, folding lines are usually provided at the positions that need to be folded, so that the appearance of the folded structure is neat.

[0056] On the other hand, the present invention also provides a process step for cutting the all-paper packaging for manufacturing the all-paper packaging device. The process step includes:

[0057] The first step is to divide the flat cardboard into two identical regions;

[0058] The second step is to cut at the middle position of each of the regions to obtain the first splint forming the card plate 2 and form notches in the regions;

[0059] The third step is to cut the flat cardboard with notches after cutting to obtain the second splint forming the card slot 1.

[0060] In this embodiment, through the process steps of cutting the all-paper packaging, the first splint forming the card plate 2 and the second splint forming the card slot 1 can be cut out from a whole cardboard substrate; based on the folding lines, the first splint is folded into the card plate 2 respectively, and the second splint is folded into the card slot 1.

[0061] Regarding the adjusting member 3 of the present invention, it can be processed according to the mold for manufacturing the card slot 1.

[0062] The specific manufacturing process will not be further elaborated here.

[0063] In addition, although illustrative embodiments are described herein, the scope includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., combinations of solutions across various embodiments), adaptations or variations based on the present disclosure. The elements in the claims will be broadly interpreted based on the language used in the claims and not limited to the examples described in this specification or during the pendency of the present application. In addition, the steps of the disclosed methods can be modified in any way, including by reordering the steps or inserting or deleting steps. Therefore, it is intended that the description be regarded only as examples, and the true scope is represented by the following claims and their full scope of equivalents.

[0064] The foregoing description is intended to be illustrative and not restrictive. For example, the above examples (or one or more aspects thereof) may be used in combination with each other. After reading the above description, other embodiments may be used by, for example, those of ordinary skill in the art. Also, in the above detailed description, various features may be combined to simplify the disclosure. This should not be construed as intending that features not claimed are essential to any claim. Thus, the following claims are incorporated into the detailed description by way of example or illustration, where each claim stands on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the present invention should be determined with reference to the appended claims and the full scope of equivalents to which such claims are entitled.

Claims

1. A paper packaging device, comprising a housing, characterized in that, the paper packaging device further comprises a pair of slide rail kits; the slide rail kit includes: a card slot and two card plates; wherein, the card slot includes: a bottom plate and two oppositely arranged clamping plates; the bottom plate is respectively connected to the sides of the two clamping plates, and correspondingly forms the bottom and two side walls of the card slot; U-shaped grooves are respectively formed on the sides close to the two ends of the clamping plate, and the openings of the U-shaped grooves face the same direction as the opening of the card slot; a convex column is provided at the bottom of the U-shaped groove; a groove gap is formed between the convex column and the side walls on both sides of the U-shaped groove; the card plate is provided with two adjacent grooves corresponding to the groove gap, and the opening directions of the grooves are the same; the groove gap and the grooves are mutually embedded to form a detachable connection between the card slot and the card plate, and an accommodating space with a variable size is surrounded between the side wall of the card slot and the card plate; In the assembled state, both ends of the electronic device are embedded in the accommodating space, and the slide rail kit is installed in the housing; by adjusting the position of the card plate in the groove gap of the clamping plate, the distance between the two oppositely arranged card plates is changed.

2. The paper packaging device according to claim 1, characterized in that, a columnar portion is formed between the two grooves, and the width of the columnar portion matches the width of the card slot.

3. The paper packaging device according to claim 2, characterized in that, through holes are formed in the clamping plate, and the through holes are located below the U-shaped grooves; a raised portion is provided at the bottom of the through holes; the raised portion and the side edges of the through holes respectively form notches; the two grooves are provided with convex platforms on the side walls close to the side edges of the card plate; the ends of the convex platforms face the side walls away from the side edges of the card plate; In the assembled state, the convex platforms are embedded in the notches.

4. The paper packaging device according to claim 3, characterized in that, the clamping plate includes an inner layer and an outer layer; the surface of the inner layer facing the inner side of the card slot forms the inner surface of the side wall of the card slot, and the surface of the outer layer facing the outer side of the card slot forms the outer surface of the side wall of the card slot; the inner layer and the outer layer are connected at one end on their respective upper sides, and the outer surface of the side wall formed by the outer layer forms a free surface, so as to form a gap with a downward opening and a variable gap between the inner layer and the outer layer.

5. The paper packaging device according to claim 4, characterized in that, the part of the outer layer on the lower side facing downward and located below the through hole extends downward to form a support portion, and the number of the support portions is the same as the number of the through holes.

6. The paper packaging device according to claim 5, characterized in that, adjacent first concave grooves are provided between the support portions; a second concave groove is provided on one side of the clamping plate opposite to the first concave groove, and the opening direction of the second concave groove is opposite to the opening direction of the first concave groove.

7. The paper packaging device according to claim 6, characterized in that, It further includes an adjusting member; the adjusting member includes a bottom plate portion, a clamping plate portion, a U-shaped groove portion, a convex column portion, a groove gap portion and a third concave groove portion, and the cross-section of the adjusting member is configured as a U-shaped structure; The adjusting member is embedded in the gap through the clamping plate portion, and the upper surface of the bottom plate portion is attached to the lower surface of the bottom plate. The clamping plate portion, the U-shaped groove portion, the convex column portion, the groove gap portion and the third concave groove portion are respectively aligned with the corresponding clamping plate, U-shaped groove, convex column, groove gap and second concave groove.

8. The all-paper packaging device according to claim 7, characterized in that, The tops of the convex column, the convex portion and the convex platform are provided with rounded corners.

9. The all-paper packaging device according to any one of claims 1 to 8, characterized in that, The bottom plate and the two clamping plates are integrally formed.

10. A process step for cutting all-paper packaging, used to manufacture the all-paper packaging device according to any one of claims 1 to 9, characterized in that, The process step includes: The first step is to divide the flat cardboard into two identical areas; The second step is to cut at the middle position of each of the areas to obtain the first splint forming the cardboard, and form notches in the corresponding areas; The third step is to cut the flat cardboard with notches after cutting to obtain the second splint forming the card slot.

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