阅读说明：本技术 一种复合板折叠箱及折叠方法 (Composite board folding box and folding method ) 是由 蔡汉宏 于 2021-09-01 设计创作，主要内容包括：本发明提供了一种复合板折叠箱及折叠方法,属于物品包装用品领域。所述复合板折叠箱采用复合板材折叠而成；所述复合板材包括：硬质层以及设置在其外表面上的软连接层；所述硬质层上开有多个折叠槽；所述折叠槽两侧的复合板材能够折叠形成夹角,并且折叠槽两侧的复合板材通过折叠槽处的软连接层连接。本发明的复合板折叠箱不再使用硬连接件,能够减少折叠箱的重量和造价,简化装配过程,同时降低成本。(The invention provides a composite board folding box and a folding method, and belongs to the field of article packaging supplies. The composite board folding box is formed by folding composite boards; the composite board comprises: a hard layer and a soft connection layer disposed on an outer surface thereof; a plurality of folding grooves are formed in the hard layer; the composite boards on the two sides of the folding groove can be folded to form an included angle, and the composite boards on the two sides of the folding groove are connected through the flexible connection layer at the folding groove. The composite board folding box of the invention does not use hard connecting pieces any more, can reduce the weight and the manufacturing cost of the folding box, simplifies the assembly process and reduces the cost at the same time.)

1. The composite board folding box is characterized in that the composite board folding box is formed by folding composite boards;

the composite board comprises: a hard layer and a soft connection layer disposed on an outer surface thereof;

a plurality of folding grooves are formed in the hard layer;

the composite boards on the two sides of the folding groove can be folded to form an included angle, and the composite boards on the two sides of the folding groove are connected through the flexible connection layer at the folding groove.

2. The composite board folding box according to claim 1, characterized in that:

the folding groove is a V-shaped groove, namely a long groove with a V-shaped cross section, and the vertex of the V-shaped groove is positioned on the outer surface of the hard layer;

the composite board is bent inwards along the folding groove, so that a composite board folding box is formed;

the hard layer forms the inner side face of the composite board folding box, and the soft connecting layer forms the outer side face of the composite board folding box.

3. The composite board folding box according to claim 1, characterized in that:

the composite sheet folding box includes: the first side plate, the second side plate, the third side plate, the bottom plate, the fifth side plate, the sixth side plate, the seventh side plate, the eighth side plate, the ninth side plate, the tenth side plate, the eleventh side plate, the twelfth side plate and the thirteenth side plate;

the first side plate, the second side plate, the third side plate, the bottom plate, the fifth side plate, the sixth side plate and the seventh side plate are sequentially arranged from left to right, and folding grooves are respectively formed in the hard layers at the joints of the adjacent plates;

the tenth side plate, the eighth side plate and the eleventh side plate are sequentially arranged from left to right, and the hard layers at the joints of the adjacent plates are respectively provided with a folding groove;

the twelfth side plate, the ninth side plate and the thirteenth side plate are sequentially arranged from left to right, and the hard layers at the joints of the adjacent plates are respectively provided with a folding groove;

the hard layer at the joint of the lower edge of the eighth side plate and the upper edge of the bottom plate is provided with a folding groove, and the hard layer at the joint of the upper edge of the ninth side plate and the lower edge of the bottom plate is provided with a folding groove.

4. The composite board folding box according to claim 3, wherein:

the bottom plate and all the side plates are rectangular;

the length of the bottom plate is the same as that of the eighth side plate and that of the ninth side plate, and the width of the bottom plate is the same as that of the third side plate and that of the fifth side plate;

the width of the eighth side plate and the width of the ninth side plate are the same as the width of the third side plate and the width of the fifth side plate;

the length of the tenth side plate and the length of the eleventh side plate are the same as the width of the eighth side plate, and the width of the third side plate is the same as the length of the tenth side plate and the length of the twelfth side plate;

the width of the ninth side plate is the same as the length of the twelfth side plate and the length of the thirteenth side plate;

the length of the first side plate, the length of the second side plate and the length of the third side plate are the same, and the width of the second side plate is the same as the thickness of the tenth side plate plus the thickness of the third side plate;

the length of the seventh side plate, the length of the sixth side plate and the length of the fifth side plate are the same, and the width of the sixth side plate is the same as the thickness of the tenth side plate plus the thickness of the fifth side plate.

5. The composite board folding box according to claim 3, wherein:

the inner surfaces of the first side plate and the seventh side plate are respectively provided with a first connecting area;

the first connecting area is a magic tape or a snap fastener;

the inner surfaces of the bottom ends of the twelfth side plate and the thirteenth side plate and the inner surfaces of the top ends of the tenth side plate and the eleventh side plate are respectively provided with a second connecting area;

the second connecting area is a magic tape or a snap fastener.

6. The composite board folding box according to claim 3, wherein:

grooves with outward openings are formed in the tenth, eleventh, twelfth and thirteenth side plates, each groove forms a half of a hand-held hole, the opening ends of the grooves are located at the edges of the side plates, and the grooves are formed in one end, far away from the eighth side plate or the ninth side plate;

the groove is U-shaped;

the middle parts of the third side plate and the fifth side plate are respectively provided with a hand-held hole, and the shapes of the hand-held holes are various;

the width of the first side panel is not greater than the distance between the left edge of the handle hole on the third side panel and the left edge of the third side panel;

the width of the seventh side plate is not larger than the distance between the right edge of the lifting hole on the fifth side plate and the right edge of the fifth side plate.

7. A composite sheet folding box according to any one of claims 4 to 6, wherein:

the composite board folding box further comprises: a cover plate, a connecting tongue and a third connecting area;

the upper end of the cover plate is connected with the lower end of the ninth side plate, and the length and the width of the cover plate are respectively the same as those of the bottom plate;

the connecting tongue is connected with the middle part of the lower end of the cover plate;

the connecting tongue is in a trapezoid shape, and the lower bottom of the trapezoid is connected with the lower end of the cover plate;

third connecting areas are respectively arranged on the inner surface of the connecting tongue and the outer surface of the upper edge of the eighth side plate;

the third connecting area is a magic tape or a snap fastener.

8. The composite board folding box according to claim 1, characterized in that:

the hard layer adopts: hard plastic boards, bamboo-wood fiber boards, composite boards, carbon fiber boards or metal boards;

the soft connecting layer is made of one of the following materials: soft plastic materials, rubber and plastic materials and cloth base materials;

the hard layer and the soft connecting layer are connected into a whole through a bonding mode or a co-extrusion molding process to form a composite board;

a foamed plastic layer is further arranged on the inner surface of the hard layer;

and a decorative layer is arranged on the outer surface of the soft connecting layer, and patterns or characters are printed on the decorative layer.

9. A method of folding a composite sheet folding box, the method comprising:

s1, flatly paving the composite board, and enabling one side of a hard layer in the composite board to face upwards; respectively bending the tenth side plate and the eleventh side plate upwards for 90 degrees along the folding groove; bending the twelfth side plate and the thirteenth side plate upwards for 90 degrees along the folding grooves respectively;

s2, bending the eighth side plate and the ninth side plate upwards by 90 degrees along the folding grooves between the eighth side plate and the bottom plate respectively;

s3, bending the third side plate upwards by 90 degrees along the folding groove between the third side plate and the bottom plate, wherein the tenth side plate and the twelfth side plate are positioned at the inner side of the third side plate and are parallel to the third side plate; then the second side plate is bent rightwards by 90 degrees along the folding groove between the second side plate and the third side plate, the first side plate is bent downwards by 90 degrees along the folding groove and then is contacted with the tenth side plate and the twelfth side plate, and at the moment, the inner surface of the second side plate is contacted with the upper ends of the tenth side plate and the twelfth side plate; then fixing the first connecting area on the inner side of the first side plate and the second connecting areas on the inner sides of the tenth side plate and the twelfth side plate together;

s4, bending the fifth side plate upwards by 90 degrees along the folding groove between the fifth side plate and the bottom plate, wherein the eleventh side plate and the thirteenth side plate are positioned at the inner side of the fifth side plate and are parallel to the fifth side plate; then the sixth side plate is bent leftwards by 90 degrees along the folding groove between the sixth side plate and the fifth side plate, the seventh side plate is bent downwards by 90 degrees along the folding groove and then is contacted with the eleventh side plate and the thirteenth side plate, and at the moment, the inner surface of the sixth side plate is contacted with the upper ends of the eleventh side plate and the thirteenth side plate; the first joining region inside the seventh side panel is then secured to the second joining region inside the eleventh and thirteenth side panels.

10. The method for folding a composite board folding box according to claim 9, wherein:

the method further comprises:

and S5, bending the cover plate forward by 90 degrees along the folding groove between the cover plate and the ninth side plate, and fixing a third pasting area arranged on the inner side of the connecting tongue and a third pasting area arranged on the outer side of the eighth side plate.

Technical Field

The invention belongs to the field of article packaging supplies, and particularly relates to a composite board folding box and a folding method.

Background

The existing hard folding boxes on the market are all connected with all sides of the box body by hard connecting pieces (such as hinges, flashboard fittings and the like), and not only are plates with different sizes required, but also a large number of hard connecting fittings are required.

The process of assembling into the box with the panel of multiple size and connecting each panel through the rigid connection is very complicated, and the accessory is also higher with the panel cost of equidimension not, moreover, opens the whole of current hard body folding box and accomodates the back and all is heavier.

In addition, in the using process, different customers can require to manufacture boxes with different sizes, and if the boxes are independently ordered, the manufacturing cost is very high when the order number is small.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a composite board folding box and a folding method, which do not use hard connecting pieces, can reduce the weight and the manufacturing cost of the folding box, simplify the assembly process and reduce the cost.

The invention is realized by the following technical scheme:

in a first aspect of the invention, a composite sheet folding box is provided.

The composite board folding box is formed by folding composite boards;

the composite board comprises: a hard layer and a soft connection layer disposed on an outer surface thereof;

a plurality of folding grooves are formed in the hard layer;

the composite boards on the two sides of the folding groove can be folded to form an included angle, and the composite boards on the two sides of the folding groove are connected through the flexible connection layer at the folding groove.

The invention is further improved in that:

the folding groove is a V-shaped groove, namely a long groove with a V-shaped cross section, and the vertex of the V-shaped groove is positioned on the outer surface of the hard layer;

the composite board is bent inwards along the folding groove, so that a composite board folding box is formed;

the hard layer forms the inner side face of the composite board folding box, and the soft connecting layer forms the outer side face of the composite board folding box.

The invention is further improved in that:

the composite sheet folding box includes: the first side plate, the second side plate, the third side plate, the bottom plate, the fifth side plate, the sixth side plate, the seventh side plate, the eighth side plate, the ninth side plate, the tenth side plate, the eleventh side plate, the twelfth side plate and the thirteenth side plate;

the first side plate, the second side plate, the third side plate, the bottom plate, the fifth side plate, the sixth side plate and the seventh side plate are sequentially arranged from left to right, and folding grooves are respectively formed in the hard layers at the joints of the adjacent plates;

the tenth side plate, the eighth side plate and the eleventh side plate are sequentially arranged from left to right, and the hard layers at the joints of the adjacent plates are respectively provided with a folding groove;

the twelfth side plate, the ninth side plate and the thirteenth side plate are sequentially arranged from left to right, and the hard layers at the joints of the adjacent plates are respectively provided with a folding groove;

the hard layer at the joint of the lower edge of the eighth side plate and the upper edge of the bottom plate is provided with a folding groove, and the hard layer at the joint of the upper edge of the ninth side plate and the lower edge of the bottom plate is provided with a folding groove.

The invention is further improved in that:

the bottom plate and all the side plates are rectangular;

the length of the bottom plate is the same as that of the eighth side plate and that of the ninth side plate, and the width of the bottom plate is the same as that of the third side plate and that of the fifth side plate;

the width of the eighth side plate and the width of the ninth side plate are the same as the width of the third side plate and the width of the fifth side plate;

the length of the tenth side plate and the length of the eleventh side plate are the same as the width of the eighth side plate, and the width of the third side plate is the same as the length of the tenth side plate and the length of the twelfth side plate;

the width of the ninth side plate is the same as the length of the twelfth side plate and the length of the thirteenth side plate;

the length of the first side plate, the length of the second side plate and the length of the third side plate are the same, and the width of the second side plate is the same as the thickness of the tenth side plate plus the thickness of the third side plate;

the length of the seventh side plate, the length of the sixth side plate and the length of the fifth side plate are the same, and the width of the sixth side plate is the same as the thickness of the tenth side plate plus the thickness of the fifth side plate.

The invention is further improved in that:

the inner surfaces of the first side plate and the seventh side plate are respectively provided with a first connecting area;

the first connecting area is a magic tape or a snap fastener;

the inner surfaces of the bottom ends of the twelfth side plate and the thirteenth side plate and the inner surfaces of the top ends of the tenth side plate and the eleventh side plate are respectively provided with a second connecting area;

the second connecting area is a magic tape or a snap fastener.

The invention is further improved in that:

grooves with outward openings are formed in the tenth, eleventh, twelfth and thirteenth side plates, each groove forms a half of a hand-held hole, the opening ends of the grooves are located at the edges of the side plates, and the grooves are formed in one end, far away from the eighth side plate or the ninth side plate;

the groove is U-shaped;

the middle parts of the third side plate and the fifth side plate are respectively provided with a hand-held hole, and the shapes of the hand-held holes are various;

the width of the first side panel is not greater than the distance between the left edge of the handle hole on the third side panel and the left edge of the third side panel;

the width of the seventh side plate is not larger than the distance between the right edge of the lifting hole on the fifth side plate and the right edge of the fifth side plate.

The invention is further improved in that:

the composite board folding box further comprises: a cover plate, a connecting tongue and a third connecting area;

the upper end of the cover plate is connected with the lower end of the ninth side plate, and the length and the width of the cover plate are respectively the same as those of the bottom plate;

the connecting tongue is connected with the middle part of the lower end of the cover plate;

the connecting tongue is in a trapezoid shape, and the lower bottom of the trapezoid is connected with the lower end of the cover plate;

third connecting areas are respectively arranged on the inner surface of the connecting tongue and the outer surface of the upper edge of the eighth side plate;

the third connecting area is a magic tape or a snap fastener.

The invention is further improved in that:

the hard layer adopts: hard plastic boards, bamboo-wood fiber boards, composite boards, carbon fiber boards or metal boards;

the soft connecting layer is made of one of the following materials: soft plastic materials, rubber and plastic materials and cloth base materials;

the hard layer and the soft connecting layer are connected into a whole through a bonding mode or a co-extrusion molding process to form a composite board;

a foamed plastic layer is further arranged on the inner surface of the hard layer;

and a decorative layer is arranged on the outer surface of the soft connecting layer, and patterns or characters are printed on the decorative layer.

In a second aspect of the present invention, a method of folding a composite sheet folding box is provided.

The method comprises the following steps:

s1, flatly paving the composite board, and enabling one side of a hard layer in the composite board to face upwards; respectively bending the tenth side plate and the eleventh side plate upwards for 90 degrees along the folding groove; bending the twelfth side plate and the thirteenth side plate upwards for 90 degrees along the folding grooves respectively;

s2, bending the eighth side plate and the ninth side plate upwards by 90 degrees along the folding grooves between the eighth side plate and the bottom plate respectively;

s3, bending the third side plate upwards by 90 degrees along the folding groove between the third side plate and the bottom plate, wherein the tenth side plate and the twelfth side plate are positioned at the inner side of the third side plate and are parallel to the third side plate; then the second side plate is bent rightwards by 90 degrees along the folding groove between the second side plate and the third side plate, the first side plate is bent downwards by 90 degrees along the folding groove and then is contacted with the tenth side plate and the twelfth side plate, and at the moment, the inner surface of the second side plate is contacted with the upper ends of the tenth side plate and the twelfth side plate; then fixing the first connecting area on the inner side of the first side plate and the second connecting areas on the inner sides of the tenth side plate and the twelfth side plate together;

s4, bending the fifth side plate upwards by 90 degrees along the folding groove between the fifth side plate and the bottom plate, wherein the eleventh side plate and the thirteenth side plate are positioned at the inner side of the fifth side plate and are parallel to the fifth side plate; then the sixth side plate is bent leftwards by 90 degrees along the folding groove between the sixth side plate and the fifth side plate, the seventh side plate is bent downwards by 90 degrees along the folding groove and then is contacted with the eleventh side plate and the thirteenth side plate, and at the moment, the inner surface of the sixth side plate is contacted with the upper ends of the eleventh side plate and the thirteenth side plate; the first joining region inside the seventh side panel is then secured to the second joining region inside the eleventh and thirteenth side panels.

The invention is further improved in that:

the method further comprises:

and S5, bending the cover plate forward by 90 degrees along the folding groove between the cover plate and the ninth side plate, and fixing a third pasting area arranged on the inner side of the connecting tongue and a third pasting area arranged on the outer side of the eighth side plate.

Compared with the prior art, the invention has the beneficial effects that: the invention uses soft connecting structure, no hard connecting piece is used, the weight and the cost of the folding box are reduced, the assembling process is simplified and the cost is reduced.

Drawings

FIG. 1 is a schematic structural diagram of the outer side surface of a composite board folding box without a cover plate in the composite board folding box according to the invention;

FIG. 2 is a schematic structural diagram of the inner side surface of a composite board folding box without a cover plate in the composite board folding box according to the invention;

FIG. 3 is a schematic structural diagram of the outer side surface of a composite board folding box with a cover plate in the composite board folding box;

fig. 4 is a schematic structural diagram of the inner side surface of the composite board folding box with the cover plate in the composite board folding box, provided by the invention:

FIG. 5 is a schematic structural view of a composite board in the composite board folding box according to the present invention;

FIG. 6 is a schematic view of another composite sheet structure in the composite sheet folding box of the present invention:

wherein: 1-a first side panel; 2-a second side plate; 3-third side plate; 4-a bottom plate; 5-fifth side plate; 6-sixth side plate; 7-seventh side plate; 8-eighth side plate; 9-ninth side plate; 10-tenth side panel; 11-eleventh side panel; 12-twelfth side panel; 13-thirteenth side panel; 14-cover plate; 15-connecting tongue; 16-folding groove; 17-hard layer; 18-soft connecting layer; 19-foamed plastic layer.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

the invention provides a composite board folding box, which is formed by folding composite boards, as shown in figure 5, the composite boards comprise: a hard layer 17 and a soft joining layer 18 provided on an outer surface thereof; the hard layer 17 and the soft connecting layer 18 are connected into a whole through a bonding mode or a co-extrusion molding process to form the composite board. Preferably, a co-extrusion process is adopted during large-scale production, and a bonding process is adopted during small-scale production, so that the production cost is reduced. A plurality of folding grooves 16 are formed in the hard layer 17, the composite boards on two sides of the folding grooves 16 can be folded to form included angles, and the composite boards on two sides of the folding grooves 16 are connected through soft connecting layers 18 at the folding grooves 16.

The hard layer 17 may employ: hard plastic board, bamboo wood fiber board or composite board, carbon fiber board, metal sheet. Wherein the hard plastic board can adopt: plastic hollow plate, Polystyrene (PS) hollow plate, polycarbonate (pc) hollow plate, polypropylene (pp) raw material blended Polyethylene (PE) raw material hollow plate, calcium plastic plate and universal plate.

The soft connecting layer 18 is made of one of the following materials: soft plastic materials, rubber and plastic materials and cloth-based materials. Wherein, the soft plastic material includes: plastic tarpaulin, knife scraping cloth made of polyvinyl chloride (PVC) and fiber pasting composite materials, Polyethylene (PE) plastics and polyester plastics with polyurethane coatings. The rubber plastic material comprises: PET/PTE/PTR/PU). The cloth-based material comprises: polyethylene and gauze fiber thermal composite material and polyurethane base cloth.

Preferably, the folding groove is a V-shaped groove, i.e. an elongated groove with a V-shaped cross section, and the vertex of the V-shaped groove is located on the outer surface of the hard layer 17. The composite sheet material can be bent inwardly along the folding grooves 16 to form a composite sheet folding box. In this case, the hard layer 17 side is an inner side surface of the composite board folding box, and the soft connection layer 18 constitutes an outer side surface of the composite board folding box.

Further, as shown in fig. 6, a foamed plastic layer 19 is provided on an inner surface of the hard layer 17.

After the box body is folded, when articles are placed in the box body, the foaming plastic layer 19 can play a role in buffering and protecting the articles, the articles are prevented from being in direct contact with the hard layer 17, and the articles are prevented from being damaged due to collision and friction.

Furthermore, a decorative layer can be arranged on the outer surface of the soft connecting layer 18, and patterns or characters can be printed on the decorative layer as required, so that the appearance of the composite board folding box can be beautified.

The embodiment of the composite board folding box of the invention is as follows:

[ EXAMPLES one ]

The composite board folding box is a composite board folding box without a cover plate. As shown in fig. 1 and 2, the composite board folding box without the cover plate includes: a first side plate 1, a second side plate 2, a third side plate 3, a bottom plate 4, a fifth side plate 5, a sixth side plate 6, a seventh side plate 7, an eighth side plate 8, a ninth side plate 9, a tenth side plate 10, an eleventh side plate 11, a twelfth side plate 12, and a thirteenth side plate 13.

Specifically, a first side plate 1, a second side plate 2, a third side plate 3, a bottom plate 4, a fifth side plate 5, a sixth side plate 6 and a seventh side plate 7 are sequentially arranged from left to right, and folding grooves 16 are respectively formed in hard layers at the joints of the adjacent plates; the tenth side plate 10, the eighth side plate 8 and the eleventh side plate 11 are sequentially arranged from left to right, and the hard layers 17 at the joints of the adjacent plates are respectively provided with a folding groove 16; the twelfth side plate 12, the ninth side plate 9 and the thirteenth side plate 13 are sequentially arranged from left to right, and the hard layers 17 at the joints of the adjacent plates are respectively provided with a folding groove 16; a folding groove 16 is formed in the hard layer 17 at the joint of the lower edge of the eighth side plate 8 and the upper edge of the bottom plate 4, and a folding groove 16 is formed in the hard layer 17 at the joint of the upper edge of the ninth side plate 9 and the lower edge of the bottom plate 4.

In use, the two edges of the slot 16 are folded inwardly and brought together so that the panels on either side of the slot 16 form an included angle. Preferably, the angle of the folding groove 16 is 90 degrees, and after the folding groove 16 is folded, the flexible connecting layer 18 connects the panels on both sides of the folding groove 16. The soft connecting layer 18 plays a role of connecting all the side plates or the bottom plate 4 of the composite board folding box together in a soft connecting mode, so that connecting parts are omitted, and the weight of the composite board folding box is reduced.

Preferably, the bottom plate 4 and all the side plates are rectangular, the length of the bottom plate 4 is the same as the length of the eighth side plate 8 and the length of the ninth side plate 9, and the width of the bottom plate 4 is the same as the length of the third side plate 3 and the length of the fifth side plate 5; the width of the eighth side plate 8 and the width of the ninth side plate 9 are the same as the width of the third side plate 3 and the width of the fifth side plate 5; the length of the tenth side plate 10 and the eleventh side plate 11 is the same as the width of the eighth side plate 8, and the width of the third side plate 3 is the same as the length of the tenth side plate 10 and the twelfth side plate 12; the width of the ninth side plate 9 is the same as the length of the twelfth side plate 12 and the thirteenth side plate 13; during actual design, the thickness values of one or more composite boards can be increased or decreased according to the length and width values of the bottom plate and the side plates, which can be realized by adopting the existing calculation method, and are not described herein again.

After folding, the eighth side panel 8, the ninth side panel 9, the third side panel 3, the fifth side panel 5 and the bottom panel 4 together form all sides of the composite board folding box without the cover panel 14.

Preferably, the length of the first side plate 1, the length of the second side plate 2, and the length of the third side plate 3 are the same, the width of the second side plate 2 is the same as the thickness of the tenth side plate 10 plus the thickness of the third side plate 3 (i.e. 2 times the thickness of the composite plate material), and similarly, the length of the seventh side plate 7, the length of the sixth side plate 6, and the length of the fifth side plate 5 are the same, and the width of the sixth side plate 6 is the same as the thickness of the eleventh side plate 11 plus the thickness of the fifth side plate 5 (i.e. 2 times the thickness of the composite plate material).

The inner surfaces of the first side plate and the seventh side plate are respectively provided with a first connecting area, and the first connecting areas are magic tapes or snap fasteners. When the first connecting area is a magic tape, the first connecting areas on the first side plate and the seventh side plate are both one of a rough surface or a hook surface; when the first connecting area is a snap fastener, the first connecting areas on the first side plate and the seventh side plate are both one of bulges or snap fasteners.

The inner surfaces of the bottom ends of the twelfth side plate and the thirteenth side plate, and the inner surfaces of the top ends of the tenth side plate and the eleventh side plate are respectively provided with a second connecting area, the second connecting area is a magic tape or a snap fastener, the second connecting areas on the tenth side plate, the eleventh side plate, the twelfth side plate and the thirteenth side plate are symmetrical relative to the center of the bottom plate 4, if the first connecting area is a hair surface of the magic tape, the second connecting area is a hook surface of the magic tape, and if the first connecting area is the hook surface of the magic tape, the second connecting area is the hair surface of the magic tape; the second attachment zone is a snap portion of the tetrapack if the first attachment zone is a raised portion of the tetrapack, and the second attachment zone is a raised portion of the tetrapack if the first attachment zone is a snap portion of the tetrapack.

After the first side plate 1 is folded inwards, the first connecting area on the first side plate can be adhered to the second connecting areas on the tenth side plate and the twelfth side plate, and after the seventh side plate 7 is folded inwards, the first connecting area on the first side plate is adhered to the second connecting areas on the eleventh side plate and the thirteenth side plate, so that the third side plate, the fifth side plate, the eighth side plate and the ninth side plate are fixedly connected together.

Furthermore, one side of each of the tenth, eleventh, twelfth and thirteenth side plates is provided with a groove with an opening facing outwards, each groove forms a half of the carrying hole, the opening end of the groove is located at the edge of the side plate, and the groove is arranged at one end far away from the eighth side plate 8 or the ninth side plate 9. Preferably, the groove is U-shaped.

A handle hole is arranged in the middle of each of the third side plate 3 and the fifth side plate 5, and the shape of the handle hole can be various shapes, preferably an ellipse.

The width of the first side panel 1 is no greater than the distance between the left edge of the handhold aperture in the third side panel 3 to the left edge of the third side panel 3. The width of the seventh side panel 7 is no greater than the distance between the right edge of the handhold aperture in the fifth side panel 5 to the right edge of the fifth side panel 5.

After the foldable box body is folded, the tenth side plate 10 and the twelfth side plate 12 are located on the inner side of the third side plate 3 and are parallel to the third side plate 3, the grooves on the tenth side plate 10 and the twelfth side plate 12 enclose a complete handle hole and are overlapped with the handle hole on the third side plate 3, and thus a hand can sequentially pass through the handle hole on the third side plate 3, the handle hole which is formed by enclosing the tenth side plate 10 and the twelfth side plate 12, and then the foldable box is lifted. In a similar way, the folded eleventh side plate 11 and the folded thirteenth side plate 13 are located on the inner side of the fifth side plate 5 and are parallel to the fifth side plate 5, the grooves on the eleventh side plate 11 and the thirteenth side plate 13 enclose a complete handle hole, the handle hole is overlapped with the handle hole on the fifth side plate 5, and the folding box can be lifted after the handle hole is formed by sequentially passing through the handle hole on the fifth side plate 5, the eleventh side plate 11 and the thirteenth side plate 13. Therefore, a user can conveniently lift the composite board folding box from two sides, and the folding box is convenient to move.

[ example two ]

The composite board folding box is a composite board folding box with a cover plate. As shown in fig. 3 and 4, the composite board folding box with the cover plate is different from the composite board folding box without the cover plate in that the composite board folding box with the cover plate further includes: cover plate 14, connecting tongue 15, third connecting area.

The upper end of the cover plate 14 is connected with the lower end of the ninth side plate 9, and the length and the width of the cover plate 14 are respectively the same as those of the bottom plate 4. The connecting tongue 15 is connected with the middle part of the lower end of the cover plate 14. Preferably, the shape of the connecting tongue 15 is a trapezoid, and the lower bottom of the trapezoid is connected with the lower end of the cover plate 14.

Preferably, a third connecting area is provided on the inner surface of said tab 15 and on the outer surface of the upper edge of the eighth lateral plate 8, respectively. The third connecting area is a magic tape or a snap fastener. When the third connection area is a magic tape, one of the connection tongue 15 and the third connection area on the eighth side plate 8 is a hair surface of the magic tape, and the other is a hook surface of the magic tape; when the third connecting area is a snap fastener, one of the connecting tongue 15 and the third connecting area on the eighth side plate 8 is a convex part, and the other is a snap fastener part.

When folded and closed, the cover plate 14 is positioned above the bottom plate 4 and parallel to the bottom plate 4, and the connecting tongue 15 and the third connecting area on the eighth side plate 8 function to connect the cover plate 14 and the eighth side plate 8 together.

During the in-service use, can cut on panel according to customer's demand, folding assembly can form the folding box after the cutting, consequently the demand of multiple size box can be satisfied to the panel of same kind of size, and no longer need produce different panels according to the size of every kind of box.

The invention also provides a folding method of the composite board folding box, which comprises the following steps:

s1, flatly paving the composite board, and enabling one side of the hard layer 17 in the composite board to face upwards; respectively bending the tenth side plate 10 and the eleventh side plate 11 upwards by 90 degrees along the folding groove 16; the twelfth side plate 12 and the thirteenth side plate 13 are respectively bent upward by 90 degrees along the folding grooves 16.

S2, bending the eighth side plate 8 and the ninth side plate 9 upwards by 90 degrees along the folding groove 16 between the eighth side plate and the bottom plate 4, wherein the tenth side plate 10, the eleventh side plate 11 and the eighth side plate 8 are all perpendicular to the bottom plate 4, the tenth side plate 10 and the eleventh side plate 11 are perpendicular to the eighth side plate 8, the twelfth side plate 12, the thirteenth side plate 13 and the ninth side plate 9 are all perpendicular to the bottom plate 4, and the eleventh side plate 11 and the thirteenth side plate 13 are perpendicular to the ninth side plate 9;

s3, bending the third side panel 3 upwards by 90 degrees along the folding slot 16 between the third side panel and the bottom panel 4, wherein the tenth side panel 10 and the twelfth side panel 12 are located inside the third side panel 3 and are parallel to the third side panel; then the second side plate 2 is bent rightwards by 90 degrees along the folding groove 16 between the second side plate 2 and the third side plate 3, the first side plate 1 is bent downwards by 90 degrees along the folding groove 16 and then is contacted with the tenth side plate 10 and the twelfth side plate 12, and at the moment, the inner surface of the second side plate 2 is contacted with the upper ends of the tenth side plate 10 and the twelfth side plate 12; the first connection region inside the first side panel 1 is then secured together with the second connection region inside the tenth and twelfth side panels 10, 12.

S4, bending the fifth side panel 5 upwards by 90 degrees along the folding slot 16 between the fifth side panel and the bottom panel 4, wherein the eleventh side panel 11 and the thirteenth side panel 13 are located inside the fifth side panel 5 and are parallel to the fifth side panel; then the sixth side plate 6 is bent leftwards by 90 degrees along the folding groove 16 between the sixth side plate and the fifth side plate 5, the seventh side plate 7 is bent downwards by 90 degrees along the folding groove 16 and then is contacted with the eleventh side plate 11 and the thirteenth side plate 13, and at the moment, the inner surface of the sixth side plate 6 is contacted with the upper ends of the eleventh side plate 11 and the thirteenth side plate 13; the first joining region inside the seventh side panel 7 is then fixed together with the second joining region inside the eleventh and thirteenth side panels 11, 13.

The folding method of the composite board folding box with the cover plate 14 is to add the following steps on the basis of the folding method of the composite board folding box without the cover plate 14:

s5, the cover plate 14 is bent forwards by 90 degrees along the folding groove 16 between the cover plate and the ninth side plate 9, then the third pasting area arranged on the inner side of the connecting tongue 15 is fixed with the third pasting area arranged on the outer side of the eighth side plate 8, and the cover plate 14 covers the box body.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Finally, it should be noted that the above-mentioned technical solution is only one embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be easily made based on the application method and principle of the present invention disclosed, and the method is not limited to the above-mentioned specific embodiment of the present invention, so that the above-mentioned embodiment is only preferred, and not restrictive.