Multi-piece combined cutting piece with internal reinforcing buffer structure and carton

Abstract

The utility model discloses a multi-piece combined type cutting piece with an internal reinforcing buffer structure and a carton applying the multi-piece combined type cutting piece, which comprise at least one carton body cutting piece capable of forming a partial carton body of the carton and at least one composite function cutting piece, and the carton body cutting piece is connected with the composite function cutting piece. The composite function cutting piece is provided with an inner corner column cutting piece capable of forming an inner corner column at the intersection of the adjacent inner walls of the carton, and the inner corner column cutting piece and the composite function cutting piece are integrally formed. The inner corner columns are the inner reinforcing buffer structure of the formed carton, the inner corner columns at the inner corners of the carton can enrich the space and reinforce inner corner supporting, the transverse and vertical pressure resistance of the carton is improved, and therefore the better protection effect is provided. When the cutting piece is converted into the carton, the inner reinforcing buffer structure of the carton is generated through the structure of the cutting piece, accessory configuration can be reduced, packaging materials are saved, working hours are reduced, packaging working efficiency is improved, labor cost is reduced, packaging garbage can be reduced, and environmental protection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging containers, and more specifically to a multi-piece combined cut piece and a paper box with an internally reinforced buffer structure. Background Art

[0002] When loading goods in cartons, if the goods do not match the internal space of the cartons well, there will be problems such as empty inner corners of the cartons and loose loading, which will lead to the displacement of goods during transportation, damage caused by collisions, deformation of carton corners, decreased lateral and vertical anti-extrusion performance of the carton, and weakened protection. In order to avoid the above problems, it is often necessary to insert cardboard strips or foam strips into the inner corners of the carton to form an internal reinforcement buffer structure to enhance the cargo fixation, buffering and anti-collision, and compression protection effects of the carton. However, this not only requires the configuration of more packaging accessories, increases the working hours and labor costs, but also generates more garbage, which is not conducive to environmental protection. The utility model patent with announcement number CN218930109U discloses a carton with corner braces, which uses a first brace angle plate, a second brace angle plate and a support plate to strengthen the corners of the carton, but these components are independent of the carton accessories and need to be installed on the carton. Therefore, there are also defects such as many components, high cost, and unfavorable environmental protection. Utility Model Content

[0003] The existing carton inner corner reinforcement and buffering measures require the configuration of more packaging accessories, which increases the working hours and labor costs, and also generates more garbage, which is not conducive to environmental protection. In order to overcome these defects, the utility model provides a multi-piece combined cutting piece and carton with an internal reinforced buffer structure, which can save packaging materials, shorten the packaging operation hours, improve the packaging operation efficiency, reduce costs, and is beneficial to the environment.

[0004] The technical solution of the utility model is: a multi-piece combined cut piece with an internal reinforcement buffer structure, including at least one box cut piece that can constitute a partial box body of a carton and at least one composite functional cut piece, the box cut piece is connected to the composite functional cut piece, and the composite functional cut piece is provided with an inner corner column cut piece that can constitute an inner corner column at the intersection of adjacent inner walls of the carton, and the inner corner column cut piece and the composite functional cut piece are integrally formed. The inner corner column is the inner reinforcement buffer structure of the carton after forming, and the inner corner column at the inner corner of the carton can not only fill the space, but also strengthen the inner corner support, improve the lateral and vertical compression resistance of the carton, and thus provide a stronger protective effect. When the cut piece is converted into a carton, the utility model generates the inner reinforcement buffer structure of the carton through the structure of the cut piece itself, which can change the current practice of adding buffer and support function accessories to the carton, reduce the configuration of accessories, save packaging materials, reduce working hours, improve packaging operation efficiency, reduce labor costs, and reduce packaging waste, which is beneficial to environmental protection.

[0005] Preferably, the box body piece and the composite functional piece are each one, the box body piece includes an integrated matching side piece constituting a pair of carton side surfaces and a bottom piece constituting the carton bottom surface, the composite functional piece includes an integrated matching side piece constituting another pair of carton side surfaces and a secondary bottom piece between the integrated matching side pieces connected to the composite functional piece, and the inner corner column piece is integrally connected to the integrated matching side piece. This technical solution is a two-piece combined piece, the box body piece is used to form the bottom surface and a pair of side surfaces of the carton, and the composite functional piece is used to form the secondary bottom surface and another pair of side surfaces of the carton. After the box body piece and the composite functional piece are combined, the secondary bottom surface is superimposed on the bottom surface formed by the box body piece, strengthening the bottom of the carton and enhancing the bearing capacity of the carton, and the sides formed by each of them complement each other, thereby forming a complete carton. The integrated matching side piece and the inner corner column piece are integrally formed, so that when the composite functional piece is completed, the materials required for the internal reinforcement buffer structure are also prepared, and the construction of the internal reinforcement buffer structure is completed when the carton is formed.

[0006] As an alternative, there is one box body piece and two composite functional pieces. The two composite functional pieces are symmetrically connected on both sides of the box body piece. The box body piece includes an integrated matching side piece constituting a pair of carton side surfaces and a bottom piece constituting the carton bottom surface. The composite functional piece includes a single side piece constituting a carton side surface, and the inner corner column piece is integrally connected to the single side piece. This technical solution is a three-piece combined piece. The box body piece is used to form the bottom surface and a pair of side surfaces of the carton. The two composite functional pieces are used to form the other two side surfaces of the carton. After the box body piece and the composite functional piece are combined, the sides formed by each are complementary to each other, thereby forming a complete carton. The single side piece and the inner corner column piece are integrally formed, so that when the composite functional piece is completed, the materials required for the internal reinforcement buffer structure are also prepared, and the construction of the internal reinforcement buffer structure is completed while the carton is formed.

[0007] As an alternative, there are two box pieces and one composite functional piece. The two box pieces are symmetrically connected on both sides of the composite functional piece. The composite functional piece includes an integrated matching side piece constituting a pair of carton sides and a bottom piece constituting the bottom of the carton. The box piece includes a single side piece constituting a carton side. The inner corner column piece is integrally connected to the integrated matching side piece. This technical solution is also a three-piece combined piece. The composite functional piece is used to form the bottom and a pair of side surfaces of the carton. The two box pieces are used to form the other two side surfaces. After the box piece and the composite functional piece are combined, the sides formed by each are complementary to each other, thereby forming a complete carton. The integrated matching side piece and the inner corner column piece are integrally formed, so that when the composite functional piece is produced, the materials required for the internal reinforcement buffer structure are also prepared, and the construction of the internal reinforcement buffer structure is completed while the carton is formed.

[0008] As an alternative, there are two box pieces and two composite functional pieces, each of which includes a single-side piece constituting a side of a carton and a bottom cover piece constituting part of the bottom surface of the carton. The box pieces and the composite functional pieces are arranged in a cross shape and the two box pieces are opposite to each other, the two composite functional pieces are opposite to each other, and the inner corner column piece is integrally formed with the single-side piece and the bottom cover piece on the composite functional piece. This technical solution is a four-piece combined piece. The box pieces and the composite functional pieces are used to form part of the bottom surface and part of the side surface of the carton respectively. After the box pieces and the composite functional pieces are combined, the side surfaces formed by each of them complement each other, and the bottom surfaces formed by each of them also complement each other, thereby forming a complete carton. The single-side piece, the bottom cover piece and the inner corner column piece are integrally formed, so that when the composite functional pieces are manufactured, the materials required for the internal reinforcement buffer structure are also prepared, and the construction of the internal reinforcement buffer structure is completed while the carton is formed.

[0009] Preferably, both the box body pieces and the composite functional pieces are provided with an upper cover piece constituting a carton cover, and the upper cover piece is integrally formed with the box body pieces. The upper cover piece can form a box cover after the carton is formed.

[0010] Preferably, the inner corner column is a straight triangular prism, and the two sides of the inner corner column are respectively in contact with the adjacent inner walls of the carton. The cross section of the inner corner column is a triangle, which makes the inner corner column more stable and produces better reinforcement and buffering effects.

[0011] A carton using the multi-piece combined cut pieces with an internally reinforced buffer structure is formed by connecting box body cut pieces and composite functional cut pieces and then folding them.

[0012] The beneficial effects of the utility model are:

[0013] Improve packaging efficiency. When the cut pieces are converted into cartons, the utility model generates an internal reinforcement buffer structure of the carton through the structure of the cut pieces, changes the current matching mode of the carton and the added accessories, reduces the working hours, and improves the packaging efficiency.

[0014] Reduce costs. The utility model can reduce the configuration of accessories, save packaging materials, and also shorten the steps of adding accessories, save labor, thereby reducing the production and use costs of cartons.

[0015] Enhance the protective effect of the carton. The utility model can provide a more compact internal space of the carton and a stronger carton pressure resistance through the internal reinforced buffer structure.

[0016] Reducing packaging waste is beneficial to environmental protection. When using the utility model, the configuration of scattered accessories can be reduced, recycling is more convenient, and it is beneficial to environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1The utility model is a schematic diagram of a split structure of two combined cutting panels.

[0018] Figure 2 It is a schematic diagram of a state in which two combined cut pieces are folded into a carton in the utility model.

[0019] Figure 3 It is a schematic diagram of the state of the composite functional cutting piece when folding in the process of folding two combined cutting pieces into a carton in the utility model.

[0020] Figure 4 It is a schematic diagram of the state of the box body pieces being folded in the process of folding two combined pieces into a carton in the utility model.

[0021] Figure 5 It is a schematic diagram of the structure of two combined cut pieces in the utility model after being folded into a carton.

[0022] Figure 6 The utility model is a schematic diagram of the disassembly structure of a three-piece combined cutting panel.

[0023] Figure 7 The utility model is a schematic diagram of a state in which three combined cut pieces are folded into a carton.

[0024] Figure 8 The utility model is a schematic diagram of another state of a three-piece combined cut piece in the process of being folded into a carton.

[0025] Fig. 9 The utility model is a schematic diagram of the disassembly structure of another three-piece combined cutting panel.

[0026] Fig.10 It is a schematic diagram of a state in which another three-piece combined cut pieces in the utility model are folded into a carton.

[0027] Fig.11 This is a schematic diagram of another state of another three-piece combined cutting piece in the utility model during the process of folding into a carton.

[0028] Fig.12 It is a schematic diagram of the structure of another three-piece combined cutting panel in the utility model after being folded into a carton.

[0029] Fig.13 It is a schematic diagram of the disassembly structure of the four-piece combined cutting panels in the utility model.

[0030] Fig.14 It is a schematic diagram of the initial stage of the process of folding four combined cut pieces into a carton in the utility model.

[0031] Fig.15It is a schematic diagram of an intermediate stage of the process of folding four combined cut pieces into a carton in the utility model.

[0032] Fig.16 It is a schematic diagram of another intermediate stage of the process of folding four combined cut pieces into a carton in the utility model.

[0033] In the figure, 1-box piece, 101-integrated side piece, 102-bottom piece, 103-secondary bottom piece, 104-single side piece, 105-bottom cover piece, 106-upper cover piece, 107-lower folding piece, 2-composite functional piece, 201-inner corner column piece, 202-lower adhesive piece, 3-inner corner column. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to the specific embodiments of the drawings.

[0035] Embodiment 1:

[0036] like Figures 1 to 5As shown, a carton is folded with multiple combined pieces with an internal reinforced buffer structure. In this embodiment, the carton is used as an ordinary outer packaging box and is in a rectangular shape when in use. In this embodiment, the multiple combined pieces with an internal reinforced buffer structure are two combined pieces, including a box piece 1 and a composite functional piece 2. The box piece 1 only has the basic function of forming a partial box body of the carton, and the composite functional piece 2 integrates two functions. One function is to form the remaining partial boxes of the carton, which is complementary to the partial box body of the carton formed by the box piece 1, and the other function is to be used as a carrier of the internal reinforced buffer structure. An inner corner column piece 201 is provided on the composite functional piece 2. After the box piece 1 and the composite functional piece 2 are bonded and then folded into a carton, the inner corner column piece 201 can form an inner corner column 3 at the intersection of adjacent inner walls of the carton. The inner corner column 3 is the presentation form of the internal reinforced buffer structure. The box body piece 1 includes two integrated matching side pieces 101 and a bottom piece 102, the two ends of the bottom piece 102 are respectively connected to the two integrated matching side pieces 101, and an indentation is provided between the bottom piece 102 and the integrated matching side pieces 101. The integrated matching side pieces 101 on the box body piece 1 constitute a pair of longer carton side surfaces on the formed carton, and the bottom piece 102 constitutes the carton bottom surface on the formed carton. The composite functional piece 2 includes another two integrated matching side pieces 101 and a secondary bottom piece 103, the two ends of the secondary bottom piece 103 are connected to the two integrated matching side pieces 101, and an indentation is provided between the secondary bottom piece 103 and the integrated matching side pieces 101. The integrated matching side pieces 101 on the composite functional piece 2 constitute a pair of shorter carton side surfaces on the formed carton, and the secondary bottom piece 103 constitutes the second layer bottom surface of the carton on the formed carton, overlapping with the carton bottom surface constituted by the bottom piece 102. The inner corner column piece 201 is integrally connected to the opposite sides of the integrated matching side piece 101 on the composite functional piece 2, and the connection between the inner corner column piece 201 and the integrated matching side piece 101, as well as the inner corner column piece 201 itself, are also provided with indentations. The box body piece 1 and the composite functional piece 2 are both provided with an upper cover piece 106 constituting the cover of the carton. On the box body piece 1, the upper cover piece 106 is integrally connected to the integrated matching side piece 101, and the integrated matching side piece 101, the bottom piece 102 and the upper cover piece 106 are formed by the same two-layer corrugated cardboard through die-cutting and indentation processing; on the composite functional piece 2, the upper cover piece 106 is integrally connected to the opposite sides of the integrated matching side piece 101, and the integrated matching side piece 101, the secondary bottom piece 103, the inner corner column piece 201 and the upper cover piece 106 are formed by the same two-layer corrugated cardboard through die-cutting and indentation processing. On the formed carton, the inner corner column 3 is in the shape of a right triangular prism, the cross section of the inner corner column 3 is an isosceles triangle, and the two side surfaces of the inner corner column 3 are respectively in contact with the adjacent inner walls of the carton.

[0037] The process of folding the one-piece cut piece with the inner corner buffer structure into a straight shape is as follows: first, the inner corner column cut piece 201 is folded along its own crease, and the free end of the inner corner column cut piece 201 is attached to the integrated matching side piece 101 on the composite functional cut piece 2, and is glued with quick-drying glue to form a straight triangular prism-shaped inner corner column 3; then the composite functional cut piece 2 is folded into a U shape, and the integrated matching side piece 101 is folded and erected on both sides of the secondary bottom piece 103, and the integrated matching side piece 101 and the secondary bottom piece are folded and erected. 103 are roughly at right angles; then the box piece 1 is folded so that the box piece 1 is also folded into a U shape, and the two integrated matching side pieces 101 on the box piece 1 are erected on both sides of the bottom piece 102; then the U-shaped composite functional piece 2 is embedded in the box piece 1 folded into a U shape, and the two integrated matching side pieces 101 on the box piece 1 and the integrated matching side pieces 101 on the composite functional piece 2 are spliced ​​into four closed sides, and the intersections of adjacent surfaces are glued with tape, and the carton is basically formed and ready for use.

[0038] Embodiment 2:

[0039] like Figures 6 to 8As shown, a carton is folded with multiple combined pieces with an internal reinforcement buffer structure. In this embodiment, the carton is used as an ordinary outer packaging box and is in a rectangular shape when in use. In this embodiment, the multiple combined pieces with an internal reinforcement buffer structure are three combined pieces, including a box piece 1 and two composite functional pieces 2, and the two composite functional pieces 2 are symmetrically connected on both sides of the box piece 1. The box piece 1 only has the basic function of forming a partial box body of the carton, and the composite functional piece 2 integrates two functions, one function is to form the remaining partial box body of the carton, which is complementary to the partial box body of the carton formed by the box piece 1, and the other function is to be used as a carrier of the internal reinforcement buffer structure. An inner corner column piece 201 is provided on the composite functional piece 2. After the box piece 1 and the composite functional piece 2 are bonded and then folded into a carton, the inner corner column piece 201 can form an inner corner column 3 at the intersection of adjacent inner walls of the carton. The inner corner column 3 is the presentation form of the internal reinforcement buffer structure. The box body panel 1 includes two integrated matching side panels 101 and a bottom panel 102. The two ends of the bottom panel 102 are respectively connected to the two integrated matching side panels 101, and an indentation is provided between the bottom panel 102 and the integrated matching side panels 101. The integrated matching side panels 101 on the box body panel 1 form a pair of longer carton side panels on the formed carton, and the bottom panel 102 forms the carton bottom surface on the formed carton. The composite functional panel 2 includes a single side panel 104, which is used to form a shorter carton side panel. The inner corner column panel 201 is integrally connected to the single side panel 104. The connection between the inner corner column panel 201 and the integrated matching side panel 101, as well as the inner corner column panel 201 itself, are also provided with indentations. The box body pieces 1 and the composite functional pieces 2 are both provided with an upper cover piece 106 constituting the cover of the carton, and the composite functional pieces 2 are also provided with a lower adhesive piece 202, which is opposite to the upper cover piece 106 of the composite functional pieces 2. On the box body pieces 1, the upper cover piece 106 is integrally connected to the integrated matching side piece 101, and the integrated matching side piece 101, the bottom piece 102 and the upper cover piece 106 are formed by the same two-layer corrugated cardboard through die-cutting and creasing processes; on the composite functional pieces 2, the upper cover piece 106 and the lower adhesive piece 202 are integrally connected to the opposite sides of the single side piece 104, and the single side piece 104, the inner corner column pieces 201, the upper cover piece 106 and the lower adhesive piece 202 are formed by the same two-layer corrugated cardboard through die-cutting and creasing processes. On the formed carton, the inner corner column 3 is in the shape of a right triangular prism, the cross section of the inner corner column 3 is an isosceles triangle, and the two side surfaces of the inner corner column 3 are respectively in contact with the adjacent inner walls of the carton.

[0040] The process of folding the one-piece panel with the inner corner buffer structure into a directed shape is as follows: first, fold the inner corner column panel 201 along its own fold, and the free end of the inner corner column panel 201 is attached to the single side panel 104 on the composite functional panel 2, and glued with quick-drying glue to form a straight triangular prism-shaped inner corner column 3; then, the two composite functional panels 2 are symmetrically placed on both sides of the bottom panel 102, so that the box panel 1 and the two composite functional panels 2 form a cross shape, and the lower adhesive panel 202 is glued to the bottom panel 102 with quick-drying glue; after the two composite functional panels 2 are firmly bonded to the bottom panel 102, the single side panels 104 of the two composite functional panels 2 are folded and stood up; the two integrated matching side panels 101 on the box panel 1 are also folded and stood up, and spliced ​​with the erected single side panels 104 to form four closed sides, and the intersections of adjacent surfaces are glued with tape, and the carton can be basically formed and ready for use.

[0041] Embodiment 3:

[0042] like Figures 9 to 12As shown, a carton is folded with multiple combined pieces with an internal reinforcement buffer structure. In this embodiment, the carton is used as an ordinary outer packaging box and is in a rectangular shape when in use. In this embodiment, the multiple combined pieces with an internal reinforcement buffer structure are also three-piece combined pieces, including two box pieces 1 and a composite functional piece 2, and the two box pieces 1 are symmetrically connected on both sides of the composite functional piece 2. The box piece 1 only has the basic function of forming a partial box body of the carton, and the composite functional piece 2 integrates two functions, one function is to form the remaining partial box body of the carton, which is complementary to the partial box body of the carton formed by the box piece 1, and the other function is to be used as a carrier of the internal reinforcement buffer structure. An inner corner column piece 201 is provided on the composite functional piece 2. After the box piece 1 and the composite functional piece 2 are bonded and then folded into a carton, the inner corner column piece 201 can form an inner corner column 3 at the intersection of adjacent inner walls of the carton, and the inner corner column 3 is the presentation form of the internal reinforcement buffer structure. The composite functional panel 2 includes two integrated matching side panels 101 and a bottom panel 102, the two ends of the bottom panel 102 are respectively connected to the two integrated matching side panels 101, and an indentation is provided between the bottom panel 102 and the integrated matching side panels 101. The two integrated matching side panels 101 can form a pair of shorter carton side panels on the formed carton, and the bottom panel 102 can form the carton bottom surface on the formed carton. The inner corner column panel 201 is integrally connected to the integrated matching side panels 101. The box panel 1 includes a single side panel 104 that forms a carton side panel, and the single side panel 104 is used to form a longer carton side panel. The connection between the inner corner column panel 201 and the integrated matching side panel 101, as well as the inner corner column panel 201 itself, are also provided with indentations. The box body pieces 1 and the composite functional pieces 2 are both provided with an upper cover piece 106 constituting the cover of the carton, and the box body pieces 1 are also provided with a lower folding piece 107, which is opposite to the upper cover piece 106 of the composite functional pieces 2. On the composite functional pieces 2, the upper cover piece 106 is integrally connected to the integrated matching side piece 101, and the integrated matching side piece 101, the bottom piece 102, the inner corner column piece 201 and the upper cover piece 106 are formed by the same three-layer corrugated cardboard through die-cutting and creasing processes; on the box body pieces 1, the upper cover piece 106 and the lower folding piece 107 are integrally connected to the opposite sides of the single side piece 104, and the single side piece 104, the upper cover piece 106 and the lower folding piece 107 are formed by the same three-layer corrugated cardboard through die-cutting and creasing processes. On the formed carton, the inner corner column 3 is in the shape of a right triangular prism, the cross section of the inner corner column 3 is an isosceles triangle, and the two side surfaces of the inner corner column 3 are respectively in contact with the adjacent inner walls of the carton.

[0043] The process of folding the one-piece panel with the inner corner buffer structure into a directed shape is as follows: first, fold the inner corner column panel 201 along its own fold line, and the free end of the inner corner column panel 201 is attached to the integrated matching side panel 101 on the composite functional panel 2, and glued with quick-drying glue to form a straight triangular prism-shaped inner corner column 3; then, place the two box body panels 1 symmetrically on both sides of the bottom panel 102, so that the box body panel 1 and the two composite functional panels 2 form a cross shape, and glue the lower folding panel 107 to the bottom panel 102 with quick-drying glue; after the two box body panels 1 are firmly bonded to the bottom panel 102, the single side panels 104 of the two composite functional panels 2 are folded and stood up; the two integrated matching side panels 101 on the box body panel 1 are also folded and stood up, and spliced ​​with the standing single side panels 104 to form four closed sides, and the intersection of adjacent surfaces is glued with tape, and the carton can be basically formed and used for use.

[0044] Embodiment 4:

[0045] like Figures 13 to 16 As shown, a carton is folded with multiple combined pieces with an internal reinforced buffer structure. In this embodiment, the carton is used as an ordinary outer packaging box and is in a rectangular shape when in use. In this embodiment, the multiple combined pieces with an internal reinforced buffer structure are four combined pieces, including two box pieces 1 and two composite functional pieces 2. The box pieces 1 and the composite functional pieces 2 are arranged in a cross shape and the two box pieces 1 are opposite to each other, and the two composite functional pieces 2 are opposite to each other. The box pieces 1 and the composite functional pieces 2 are connected after maintaining the above positional relationship. The box piece 1 only has the basic function of constituting a partial box body of the carton, and the composite functional piece 2 integrates two functions. One function is to constitute the remaining partial box bodies of the carton, which is complementary to the partial box body of the carton constituted by the box piece 1, and the other function is to be used as a carrier of the internal reinforced buffer structure. The composite functional piece 2 is provided with an inner corner column piece 201. After the box body piece 1 and the composite functional piece 2 are bonded and folded into a carton, the inner corner column piece 201 can form an inner corner column 3 at the intersection of adjacent inner walls of the carton. The inner corner column 3 is the presentation form of the inner reinforced buffer structure. The box body piece 1 and the composite functional piece 2 each include a single side piece 104, a bottom cover piece 105 and an upper cover piece 106. The single side piece 104 constitutes a side of the carton, the bottom cover piece 105 constitutes a partial bottom surface of the carton, and the upper cover piece 106 constitutes a partial cover of the carton. On the composite functional piece 2, the inner corner column piece 201 is integrally formed with the single side piece 104, the bottom cover piece 105 and the upper cover piece 106, and the single side piece 104, the inner corner column piece 201, the bottom cover piece 105 and the upper cover piece 106 are formed by using the same three-layer corrugated cardboard through die-cutting and creasing processes; on the box body piece 1, the single side piece 104, the bottom cover piece 105 and the upper cover piece 106 are integrally formed, and the single side piece 104, the bottom cover piece 105 and the upper cover piece 106 are formed by using the same three-layer corrugated cardboard through die-cutting and creasing processes.

[0046] The process of folding the one-piece cut piece with the inner corner buffer structure into a directed shape is as follows: first, fold the inner corner column cut piece 201 along its own fold, and the free end of the inner corner column cut piece 201 is attached to the single-side piece 104 on the composite functional cut piece 2, and glued with quick-drying glue to form a straight triangular prism-shaped inner corner column 3; then, the box cut piece 1 and the two composite functional cut pieces 2 are arranged in a cross shape, all the bottom cover pieces 105 are placed at the center of the cross, and the bottom cover pieces 105 are glued to each other with quick-drying glue; after the bottom cover pieces 105 are firmly glued, the single-side pieces 104 of the box cut piece 1 and the composite functional cut piece 2 are folded and stood up, and the stood-up single-side pieces 104 are spliced ​​into four closed sides, and the intersections of the adjacent faces are glued with tape, and the carton is basically formed and ready for use.

[0047] Embodiment 5:

[0048] A carton is formed by folding a plurality of combined cut pieces with an internal reinforced buffer structure. In this embodiment, the carton is used as an open storage box and is equipped with an independent box cover. The carton is in a rectangular shape when in use. No upper cover sheet 106 is provided on the box body cut piece 1 and the composite functional cut piece 2, and the rest is the same as in embodiment 1.

Claims

1. A multi-piece combined panel with an internally reinforced buffer structure, characterized in that: The invention comprises at least one box body piece (1) capable of forming a partial box body of a carton and at least one composite functional piece (2), wherein the box body piece (1) is connected to the composite functional piece (2), an inner corner column piece (201) capable of forming an inner corner column (3) at the intersection of adjacent inner walls of the carton is provided on the composite functional piece (2), and the inner corner column piece (201) and the composite functional piece (2) are integrally formed.

2. The multi-piece combined panel with an internally reinforced buffer structure according to claim 1, characterized in that: The box body piece (1) and the composite functional piece (2) are each one, the box body piece (1) comprises an integrated matching side piece (101) constituting a pair of carton side surfaces and a bottom piece (102) constituting a carton bottom surface, the composite functional piece (2) comprises an integrated matching side piece (101) constituting another pair of carton side surfaces and a secondary bottom piece (103) connected between the integrated matching side pieces (101) on the composite functional piece (2), and the inner corner column piece (201) is integrally connected to the integrated matching side piece (101).

3. The multi-piece combined panel with an internally reinforced buffer structure according to claim 1, characterized in that: There is one box body piece (1) and two composite functional pieces (2). The two composite functional pieces (2) are symmetrically connected to two sides of the box body piece (1). The box body piece (1) comprises an integrated matching side piece (101) constituting a pair of carton side surfaces and a bottom piece (102) constituting a carton bottom surface. The composite functional piece (2) comprises a single side piece (104) constituting a carton side surface. The inner corner column piece (201) is integrally connected to the single side piece (104).

4. The multi-piece combined panel with an internally reinforced buffer structure according to claim 1, characterized in that: There are two box body pieces (1) and one composite functional piece (2). The two box body pieces (1) are symmetrically connected to the two sides of the composite functional piece (2). The composite functional piece (2) comprises an integrated matching side piece (101) constituting a pair of carton side surfaces and a bottom piece (102) constituting the bottom surface of the carton. The box body piece (1) comprises a single side piece (104) constituting a carton side surface. The inner corner column piece (201) is integrally connected to the integrated matching side piece (101).

5. The multi-piece combined panel with an internally reinforced buffer structure according to claim 1, characterized in that: There are two box body pieces (1) and two composite functional pieces (2), each of which comprises a single side piece (104) constituting a side of a carton and a bottom cover piece (105) constituting a part of the bottom surface of the carton. The box body pieces (1) and the composite functional pieces (2) are arranged in a cross shape, with the two box body pieces (1) facing each other, and the two composite functional pieces (2) facing each other. The inner corner column piece (201) is integrally formed with the single side piece (104) and the bottom cover piece (105) on the composite functional piece (2).

6. The multi-piece combined panel with an internally reinforced buffer structure according to claim 2, 3, 4 or 5, characterized in that: An upper cover piece (106) constituting a carton cover is provided on both the box body cut piece (1) and the composite functional cut piece (2); the upper cover piece (106) and the box body cut piece (1) are integrally formed.

7. The multi-piece combined panel with an internally reinforced buffer structure according to claim 1, 2, 3, 4 or 5, characterized in that: The inner corner column (3) is in the shape of a straight triangular prism, and two side surfaces of the inner corner column (3) are respectively correspondingly fitted with adjacent inner walls of the carton.

8. A carton using a multi-piece combined cut panel with an internally reinforced buffer structure according to any one of claims 1 to 7, characterized in that: The box body cut piece (1) and the composite functional cut piece (2) are connected and then folded.

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