CN111605853A - Self-locking bottom with bottom support structure, box blank and forming method thereof - Google Patents

Self-locking bottom with bottom support structure, box blank and forming method thereof Download PDF

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Publication number
CN111605853A
CN111605853A CN202010479073.9A CN202010479073A CN111605853A CN 111605853 A CN111605853 A CN 111605853A CN 202010479073 A CN202010479073 A CN 202010479073A CN 111605853 A CN111605853 A CN 111605853A
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CN
China
Prior art keywords
locking
sheet
self
side wall
plate
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Pending
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CN202010479073.9A
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Chinese (zh)
Inventor
魏娜
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Tianjin Vocational Institute
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Tianjin Vocational Institute
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Priority to CN202010479073.9A priority Critical patent/CN111605853A/en
Publication of CN111605853A publication Critical patent/CN111605853A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/08—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward-folding of portions of body, e.g. flaps, interconnected by, or incorporating, gusset folds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/50—Internal supporting or protecting elements for contents
    • B65D5/5002—Integral elements for containers having tubular body walls
    • B65D5/5004—Integral elements for containers having tubular body walls formed as an extension of the end closures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/64—Lids
    • B65D5/66—Hinged lids
    • B65D5/6602—Hinged lids formed by folding one or more extensions hinged to the upper edge of a tubular container body
    • B65D5/6608—Hinged lids formed by folding one or more extensions hinged to the upper edge of a tubular container body the lid being held in closed position by self-locking integral flaps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

The invention discloses a self-locking bottom with a bottom support structure, a box blank and a forming method thereof, wherein the self-locking bottom comprises two locking units which are adjacently arranged, each locking unit comprises a locking part and a box bottom sheet which are respectively connected to the bottom edges of adjacent side wall plates through crease lines, and the forming method comprises the following steps: each locking part comprises a bottom support lower sheet, a bottom support supporting sheet, a bottom support upper sheet and an adhesive sheet which are sequentially connected through crease lines, the bottom support lower sheet is connected to the corresponding side wall plate through the crease lines, and the self-locking structure adhesive sheet is connected to the locking edge, close to the box bottom sheet, on the bottom support lower sheet through a connecting crease line; the box bottom plate is a triangle-like plate with an arc edge; when the self-locking structure adhesive sheet is adhered to the adjacent box bottom sheet, the bottom support lower sheet and the box bottom sheet form a locking sheet, and the end part of the locking edge and the arc-shaped edge form a locking hook. The self-locking bottom can realize self-forming and self-locking, is firstly bonded in a flat plate state and then formed in a three-dimensional manner, and is convenient to transport.

Description

Self-locking bottom with bottom support structure, box blank and forming method thereof
Technical Field
The invention relates to the technical field of packaging boxes, in particular to a self-locking bottom with a bottom support structure, a box blank and a forming method of the self-locking bottom.
Background
The current packing carton of taking up bottled, filling class article all need have the buffer structure of a bottom, prevents that fragile class article direct contact bottoms such as bottle, jar from taking place to damage, and some take foaming class buffer material in these packing cartons at present, perhaps solitary paper buffering part, no matter which kind of form, these collet structures all need the isolated production, assemble the shaping again, comparatively take a lot of work and time to be unfavorable for the recovery of carton.
Disclosure of Invention
The invention aims to provide a self-locking bottom with a bottom support structure, aiming at the problems that the assembly of a paper box bottom support structure in the prior art is time-consuming, labor-consuming and not environment-friendly.
It is another object of the invention to provide a blank with said self-locking bottom.
Another object of the invention is to provide a method for forming said blank.
The technical scheme adopted for realizing the purpose of the invention is as follows:
a self-locking bottom with a bottom bracket structure, comprising two adjacently arranged locking units, each locking unit comprising a locking portion and a box bottom sheet connected to the bottom edges of adjacent side wall panels by a crease line, respectively, wherein:
each locking part comprises a bottom support lower sheet, a bottom support supporting sheet, a bottom support upper sheet and an adhesive sheet which are sequentially connected through crease lines, the bottom support lower sheet is connected to the corresponding side wall plate through the crease lines, the self-locking structure adhesive sheet is connected to a locking edge, close to the box bottom sheet, on the bottom support lower sheet through a connecting crease line, the length of the connecting crease line is smaller than that of the locking edge, and the end part of the locking edge and the edge of the self-locking structure adhesive sheet enclose to form a hook;
the box bottom plate is a triangle-like plate with an arc edge;
when the self-locking structure adhesive sheet is adhered to the adjacent box bottom sheet, the bottom support lower sheet and the box bottom sheet form a locking sheet, the end part of the locking edge and the arc-shaped edge form a locking hook, and when the four side wall plates are folded into a quadrangular shape, the two locking sheets are locked through the two locking hooks.
In the technical scheme, the bottom support lower sheet is a trapezoid-like structure sheet, the long bevel edge of the trapezoid-like structure sheet is the locking edge, a protruding edge is formed at the end part of the long bevel edge, and the protruding edge and the edge of the self-locking structure adhesive sheet are enclosed to form a hook.
In the technical scheme, the bottom support upper piece is an L-shaped piece.
In the above technical solution, the connection cut line is located in the middle of the locking edge, and a gap is formed between one end of the self-locking structure adhesive sheet and the bottom edge of the corresponding side wall plate.
In another aspect of the present invention, the method for forming the self-locking bottom with the bottom support structure is characterized by comprising the following steps:
a, bonding in a flat plate state:
step 1, folding the upper bottom support sheet and the adhesive sheet 180 degrees along a crease line between the upper bottom support sheet and the support bottom support sheet, and coating adhesive on the upper surface of the adhesive sheet;
step 2, folding the locking part 180 degrees along the crease line between the locking part and the corresponding side wall plate, wherein the adhesive sheet is adhered on the corresponding side wall plate, folding the box bottom plate 180 degrees along the crease line between the box bottom plate and the corresponding side wall plate, and attaching the box bottom plate on the corresponding side wall plate;
step 3, folding the self-locking structure adhesive sheet along the connecting cutting line by 180 degrees, wherein the lower surface of the self-locking structure adhesive sheet is attached to the surface of the bottom support lower sheet, and the upper surface of the self-locking structure adhesive sheet is coated with glue;
step 4, along with 180-degree folding of the side wall plate, the self-locking structure adhesive sheet is adhered to the box bottom sheet;
b, three-dimensional forming:
along with the 90-degree folding of the side wall plate, the two locking units are formed by self under the stretching force of the unfolding of the side wall plate, the locking hooks of the two locking pieces are mutually hooked and locked to form locking, and the upper bottom support piece of each locking unit is positioned right above the lower bottom support piece to form a bottom support.
In another aspect of the present invention, a box blank with a self-locking bottom structure comprises four side wall panels connected in sequence by crease lines, a box lid portion connected to top edges of the side wall panels by crease lines, and the self-locking bottom, wherein:
the four side wall plates are respectively a first side wall plate, a front plate, a second side wall plate and a rear plate; the box bottom sheet and the locking part of one locking unit are respectively connected to the bottom edges of the first side wall plate and the front plate, the box bottom sheet and the locking part of the other locking unit are respectively connected to the bottom edges of the second side wall plate and the rear plate, and the side edges of the rear plate are connected with adhesive joints through crease lines.
In the above technical scheme, first side wallboard and second side wallboard are the same rectangle board of big size shape, front bezel and back plate are the same rectangle board of big size shape.
In the above technical scheme, lid portion including connect through the crease line connect in first lid on the first side wallboard top edge inserts the front flap, connect through the crease line connect in spacer on the front bezel top edge, connect through the crease line connect in second lid on the second side wallboard top edge inserts the front flap, connect through the crease line connect in box cover piece on the back plate top edge, be connected with the inserted sheet through the crease line on the edge of box cover piece, the spacer includes the flat spacer of side spacer that is connected through the crease line, be formed with the locating hole on the flat spacer.
In the above technical scheme, the positioning hole is circular, and a notch is formed at the corner position of the flat positioning sheet.
In another aspect of the present invention, the method for forming a blank with a self-locking bottom structure includes the following steps:
a, bonding in a flat plate state:
step 1, folding the upper bottom support sheet and the adhesive sheet 180 degrees along a crease line between the upper bottom support sheet and the support bottom support sheet, and coating adhesive on the upper surface of the adhesive sheet;
step 2, folding the locking part 180 degrees along the crease line between the locking part and the corresponding side wall plate, wherein the adhesive sheet is adhered on the corresponding side wall plate, folding the box bottom plate 180 degrees along the crease line between the box bottom plate and the corresponding side wall plate, and attaching the box bottom plate on the corresponding side wall plate;
step 3, folding the self-locking structure adhesive sheet along the connecting cutting line by 180 degrees, wherein the lower surface of the self-locking structure adhesive sheet is attached to the surface of the bottom support lower sheet, and the upper surface of the self-locking structure adhesive sheet is coated with glue;
step 4, folding the adhesive joint by 180 degrees, coating adhesive on the upper surface of the adhesive joint, folding the second side wall plate and the rear plate by 180 degrees along a crease line between the front plate and the second side wall plate, wherein the adhesive joint is adhered to the first side wall plate 11 at the moment, and the self-locking structure adhesive sheet is adhered to the box bottom sheet;
after the step, the box blank is in a flat plate state;
b, three-dimensional forming:
step 1, folding four side wall plates by 90 degrees, wherein two locking units are formed by self under the stretching force of the side wall plates, locking hooks of two locking pieces are mutually hooked and locked to form locking, and an upper bottom support piece of each locking unit is positioned right above a lower bottom support piece to form a bottom support;
and 2, folding the box cover part to cover the top opening formed by the surrounding of the four side wall plates.
Compared with the prior art, the invention has the beneficial effects that:
1. the self-locking bottom can realize self-forming along with the forming of the box body, the lock bottom and the side wall plate are in an integral structure, additional processing or installation is not needed, time and labor are saved in assembly, and meanwhile, the self-locking bottom is of a paper blank structure, so that the energy is saved, the environment is protected, and the environment is not polluted.
2. The self-locking bottom provided by the invention has a bottom support structure, has good buffering and damping performance, is convenient for containing fragile products such as glass bottles and the like, can realize self-locking in addition, and has high stability of the spliced box bottom.
3. The box blank is formed in two steps, one step is bonding in a flat plate state, the other step is three-dimensional forming, so that the box blank is bonded in a flat plate state after being cut and formed, and is transported to a shelf in the flat plate state, and when the box blank needs to be used, the box blank is folded and formed, so that time and labor are saved.
Drawings
Fig. 1 is a schematic structural view of a self-locking bottom in embodiment 1.
Fig. 2 is a schematic structural view of a blank with a self-locking bottom structure according to example 2.
FIG. 3 is a schematic view showing the structure of step 1 in the bonding of a blank in a flat plate state in the molding of a box.
FIG. 4 is a schematic view showing the structure of step 2 in the bonding in a flat plate state in the blank forming A.
FIG. 5 is a schematic view showing the structure of step 3 in the bonding in a flat plate state in the blank forming A.
Fig. 6 is a schematic view showing the structure of step 4 in the bonding in the flat state in the blank forming a.
Fig. 7 is a schematic structural view of the self-locking bottom after the blank forming B and the three-dimensional forming (for convenience of illustration, the self-locking bottom is opened).
In the figure: 1-box bottom sheet, 2-bottom support bottom sheet, 3-bottom support sheet, 4-bottom support top sheet, 5-bottom support adhesive sheet, 6-self-locking structure adhesive sheet, 7-arc edge, 8-locking edge, 9-convex edge, 10-connecting cutting line, 11-first side wall plate, 12-front plate, 13-second side wall plate, 14-rear plate, 15-adhesive joint, 16-first cover insertion flap, 17-positioning sheet, 18-second cover insertion flap, 19-box cover sheet, 20-insertion sheet, 21-positioning hole,
a-hook
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A self-locking bottom with a bottom bracket structure, comprising two adjacently arranged locking units, each locking unit comprising a locking portion and a box bottom 1 connected to the bottom edge of an adjacent side wall panel B by a crease line, respectively, wherein:
each locking part comprises a bottom support lower sheet 2, a bottom support sheet 3, a bottom support upper sheet 4 and an adhesive sheet 5 which are connected in sequence through crease lines, the bottom support lower sheet 2 is connected to a corresponding side wall plate through the crease lines, a self-locking structure adhesive sheet 6 is connected to a locking edge 8, close to the box bottom sheet 1, on the bottom support lower sheet 2 through a connecting crease line 10, the length of the connecting crease line 10 is smaller than that of the locking edge 8, and the end part of the locking edge 8 and the edge of the self-locking structure adhesive sheet 6 enclose to form a hook a;
the box bottom plate 1 is a triangle-like plate with one edge being an arc edge 7;
when the self-locking structure adhesive sheet 6 is adhered to the adjacent box bottom sheet 1, the bottom support lower sheet 2 and the box bottom sheet 1 form locking sheets, the end part of the locking edge 8 and the arc-shaped edge 7 form a locking hook, and when four side wall plates of the box body are folded into a quadrangular shape, the two locking sheets are locked through the two locking hooks.
The forming process of the self-locking bottom comprises the following steps:
a, bonding in a flat plate state:
step 1, folding the upper bottom support sheet 4 and the adhesive sheet 5 by 180 degrees along a crease line between the upper bottom support sheet 4 and the support bottom support sheet 3, and coating adhesive on the upper surface of the adhesive sheet 5;
step 2, folding the locking part 180 degrees along the crease line between the locking part and the corresponding side wall plate, wherein the adhesive sheet 5 is adhered on the corresponding side wall plate, folding the box bottom sheet 1 180 degrees along the crease line between the box bottom sheet 1 and the corresponding side wall plate, and attaching the box bottom sheet 1 to the corresponding side wall plate;
step 3, folding the self-locking structure adhesive sheet 6 along the connecting cutting line by 180 degrees, adhering the lower surface of the self-locking structure adhesive sheet 6 to the surface of the bottom support lower sheet 2, and coating the upper surface of the self-locking structure adhesive sheet 6 with glue;
step 4, along with 180-degree folding of the side wall plate, the self-locking structure adhesive sheet 6 is adhered to the box bottom sheet 1;
b, three-dimensional forming:
along with the 90-degree folding of the side wall plate, the two locking units are self-formed under the stretching force of the unfolding of the side wall plate, the locking hooks of the two locking pieces are mutually hooked and locked to form locking, and the upper bottom support piece 4 of each locking unit is positioned right above the lower bottom support piece 2 to form a bottom support.
The lock bottom structure not only can be self-locked, but also can be supported by the bottom support supporting sheet 3 after being three-dimensionally formed, and the bottom support upper sheet 4 is positioned right above the bottom support lower sheet 2, so that the bottom support structure is formed, and the lock bottom structure has a good buffering function.
Furthermore, the bottom support lower sheet 2 is a trapezoid-like structure sheet, the long bevel edge of the trapezoid-like structure sheet is the locking edge 8, a protruding edge 9 is formed at the end part of the long bevel edge, and the protruding edge 9 and the edge of the self-locking structure adhesive sheet 6 are enclosed to form a hook A.
Furthermore, the upper bottom support pieces 4 are L-shaped pieces, so that the two upper bottom support pieces 4 do not interfere with each other when the two locking units are interlocked. The corners of the L-shaped pieces are rounded corners.
Further, the connecting score line 10 is located in the middle of the locking edge 8. Therefore, a space is formed between one end of the self-locking structure adhesive sheet 6 and the bottom edge of the corresponding side wall plate, the side wall plate is convenient to fold and form by 90 degrees, and the self-locking structure adhesive sheet 6 is prevented from interfering the folding of the side wall plate.
Example 2
A blank with a self-locking bottom structure comprising four side wall panels connected in series by crease lines, a lid portion connected to the top edges of the side wall panels by crease lines, and a self-locking bottom as in embodiment 1, wherein:
the four side wall plates are respectively a first side wall plate 11, a front plate 12, a second side wall plate 13 and a rear plate 14; the box bottom 1 and the locking portion of one locking unit are connected to the bottom edges of the first side wall panel 11 and the front panel 12, respectively, the box bottom 1 and the locking portion of the other locking unit are connected to the bottom edges of the second side wall panel 13 and the rear panel 14, respectively, and the side edges of the rear panel 14 are connected to adhesive joints 15 by crease lines.
The forming method of the box blank comprises the following steps:
a, bonding in a flat plate state:
step 1, folding the upper bottom support sheet 4 and the adhesive sheet 5 by 180 degrees along a crease line between the upper bottom support sheet 4 and the support bottom support sheet 3, and coating adhesive on the upper surface of the adhesive sheet 5;
step 2, folding the locking part 180 degrees along the crease line between the locking part and the corresponding side wall plate, wherein the adhesive sheet 5 is adhered on the corresponding side wall plate, folding the box bottom sheet 1 180 degrees along the crease line between the box bottom sheet 1 and the corresponding side wall plate, and attaching the box bottom sheet 1 to the corresponding side wall plate;
step 3, folding the self-locking structure adhesive sheet 6 along the connecting cutting line by 180 degrees, adhering the lower surface of the self-locking structure adhesive sheet 6 to the surface of the bottom support lower sheet 2, and coating the upper surface of the self-locking structure adhesive sheet 6 with glue;
step 4, folding the adhesive joint 15 by 180 degrees, coating adhesive on the upper surface of the adhesive joint 15, folding the second side wall plate 13 and the rear plate 14 by 180 degrees along a crease line between the front plate 12 and the second side wall plate 13, wherein the adhesive joint 15 is adhered to the first side wall plate 11 at the moment, and the self-locking structure adhesive sheet 6 is adhered to the box bottom plate 1;
after the step, the box blank is in a flat plate state;
b, three-dimensional forming:
step 1, folding four side wall plates by 90 degrees, forming two locking units under the stretching force of the side wall plates by self, hooking and locking the locking hooks of the two locking pieces to form locking, and forming a bottom support by positioning the bottom support upper piece 4 of each locking unit right above the bottom support lower piece 2.
And 2, folding the box cover part to cover the top opening formed by the surrounding of the four side wall plates.
Furthermore, the front plate 12 and the rear plate 14 are rectangular plates with the same size and shape, the first side wall plate 11 and the second side wall plate 13 are rectangular plates with the same size and shape, and the formed box body is a quadrangular or cuboid box body.
Example 3
In this embodiment, the structure of the lid unit is further described in addition to embodiment 2.
The box cover portion comprises a first cover insertion flap 16 connected to the top edge of the first side wall panel 11 by a crease line, a positioning flap 17 connected to the top edge of the front panel 12 by a crease line, a second cover insertion flap 18 connected to the top edge of the second side wall panel 13 by a crease line, a box cover flap 19 connected to the top edge of the rear panel 14 by a crease line, a tab 20 connected to the edge of the box cover flap 19 by a crease line, the positioning flap 17 comprising a side positioning flap 17a and a flat positioning flap 17b connected by a crease line, the flat positioning flap 17b being formed with a positioning hole 21;
and B, the step 2 in the three-dimensional forming comprises the following steps:
s1, folding the positioning piece 17b 90 degrees along the crease line between the positioning piece 17b and the side positioning piece 17a to make it perpendicular to the side positioning piece 17a, folding the positioning piece 17 180 degrees along the crease line between the positioning piece 17a and the front plate 12, and attaching the side positioning piece 17a to the inner side of the front plate 12;
s2, folding the first cover insertion flap 16 and the second cover insertion flap 18 by 90 degrees;
s3, folding the inserting sheet 20 along the folding line 90 degrees between the inserting sheet 20 and the box cover sheet 19, folding the box cover sheet 19 along the folding line 90 degrees between the box cover sheet 19 and the back plate 14, completing the covering, and attaching the inserting sheet 20 to the inner side of the front plate 12.
Furthermore, the positioning hole 21 is circular to fix the top of the bottle body.
Furthermore, the position of the corner of the flat positioning piece 17b is formed with a notch to facilitate the opening of the positioning piece 17.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A self-locking bottom with a bottom bracket structure, comprising two adjacently arranged locking units, each locking unit comprising a locking portion and a box bottom sheet connected to the bottom edges of adjacent side wall panels by a crease line, respectively, wherein:
each locking part comprises a bottom support lower sheet, a bottom support supporting sheet, a bottom support upper sheet and an adhesive sheet which are sequentially connected through crease lines, the bottom support lower sheet is connected to the corresponding side wall plate through the crease lines, the self-locking structure adhesive sheet is connected to a locking edge, close to the box bottom sheet, on the bottom support lower sheet through a connecting crease line, the length of the connecting crease line is smaller than that of the locking edge, and the end part of the locking edge and the edge of the self-locking structure adhesive sheet enclose to form a hook;
the box bottom plate is a triangle-like plate with an arc edge;
when the self-locking structure adhesive sheet is adhered to the adjacent box bottom sheet, the bottom support lower sheet and the box bottom sheet form a locking sheet, the end part of the locking edge and the arc-shaped edge form a locking hook, and when the four side wall plates are folded into a quadrangular shape, the two locking sheets are locked through the two locking hooks.
2. The self-locking shoe with shoe structure of claim 1, wherein said shoe lower piece is a trapezoid-like piece, the long oblique side of said trapezoid-like piece is said locking edge, and the end of said long oblique side forms a protruding edge which forms a hook with the edge of said self-locking adhesive sheet.
3. The self-locking bottom with bottom bracket structure as recited in claim 1, wherein said bottom bracket upper piece is an "L" shaped piece.
4. The self-locking base with mounting structure of claim 1, wherein said attachment cut line is located at the middle of said locking edge, and a space is formed between one end of said self-locking adhesive sheet and the bottom edge of the corresponding side wall plate.
5. A method of forming a self-locking bottom with a mounting structure, as claimed in any one of claims 1 to 4, comprising the steps of:
a, bonding in a flat plate state:
step 1, folding the upper bottom support sheet and the adhesive sheet 180 degrees along a crease line between the upper bottom support sheet and the support bottom support sheet, and coating adhesive on the upper surface of the adhesive sheet;
step 2, folding the locking part 180 degrees along the crease line between the locking part and the corresponding side wall plate, wherein the adhesive sheet is adhered on the corresponding side wall plate, folding the box bottom plate 180 degrees along the crease line between the box bottom plate and the corresponding side wall plate, and attaching the box bottom plate on the corresponding side wall plate;
step 3, folding the self-locking structure adhesive sheet along the connecting cutting line by 180 degrees, wherein the lower surface of the self-locking structure adhesive sheet is attached to the surface of the bottom support lower sheet, and the upper surface of the self-locking structure adhesive sheet is coated with glue;
step 4, along with 180-degree folding of the side wall plate, the self-locking structure adhesive sheet is adhered to the box bottom sheet;
b, three-dimensional forming:
along with the 90-degree folding of the side wall plate, the two locking units are formed by self under the stretching force of the unfolding of the side wall plate, the locking hooks of the two locking pieces are mutually hooked and locked to form locking, and the upper bottom support piece of each locking unit is positioned right above the lower bottom support piece to form a bottom support.
6. A blank for a box having a self-locking bottom structure comprising four side wall panels connected in series by crease lines, a lid portion connected to the top edges of said side wall panels by crease lines, and a self-locking bottom according to any one of claims 1 to 3, wherein:
the four side wall plates are respectively a first side wall plate, a front plate, a second side wall plate and a rear plate; the box bottom sheet and the locking part of one locking unit are respectively connected to the bottom edges of the first side wall plate and the front plate, the box bottom sheet and the locking part of the other locking unit are respectively connected to the bottom edges of the second side wall plate and the rear plate, and the side edges of the rear plate are connected with adhesive joints through crease lines.
7. The blank with a self-locking bottom structure of claim 6, wherein the first side wall panel and the second side wall panel are rectangular panels having the same size and shape, and the front panel and the rear panel are rectangular panels having the same size and shape.
8. The blank with a self-locking bottom structure of claim 6, wherein the lid portion comprises a first lid insertion flap connected to the top edge of the first side wall panel by a crease line, a positioning tab connected to the top edge of the front panel by a crease line, a second lid insertion flap connected to the top edge of the second side wall panel by a crease line, and a lid portion connected to the top edge of the rear panel by a crease line, wherein the lid portion has an insert tab connected to an edge thereof by a crease line, wherein the positioning tab comprises a side positioning tab and a flat positioning tab connected by a crease line, and wherein the flat positioning tab has a positioning hole formed therein.
9. The blank with self-locking bottom structure according to claim 8, wherein said positioning hole is circular, and a notch is formed at a corner position of said flat positioning piece.
10. A method of forming a blank with a self-locking bottom according to any one of claims 5 to 9, comprising the steps of:
a, bonding in a flat plate state:
step 1, folding the upper bottom support sheet and the adhesive sheet 180 degrees along a crease line between the upper bottom support sheet and the support bottom support sheet, and coating adhesive on the upper surface of the adhesive sheet;
step 2, folding the locking part 180 degrees along the crease line between the locking part and the corresponding side wall plate, wherein the adhesive sheet is adhered on the corresponding side wall plate, folding the box bottom plate 180 degrees along the crease line between the box bottom plate and the corresponding side wall plate, and attaching the box bottom plate on the corresponding side wall plate;
step 3, folding the self-locking structure adhesive sheet along the connecting cutting line by 180 degrees, wherein the lower surface of the self-locking structure adhesive sheet is attached to the surface of the bottom support lower sheet, and the upper surface of the self-locking structure adhesive sheet is coated with glue;
step 4, folding the adhesive joint by 180 degrees, coating adhesive on the upper surface of the adhesive joint, folding the second side wall plate and the rear plate by 180 degrees along a crease line between the front plate and the second side wall plate, wherein the adhesive joint is adhered to the first side wall plate 11 at the moment, and the self-locking structure adhesive sheet is adhered to the box bottom sheet;
after the step, the box blank is in a flat plate state;
b, three-dimensional forming:
step 1, folding four side wall plates by 90 degrees, wherein two locking units are formed by self under the stretching force of the side wall plates, locking hooks of two locking pieces are mutually hooked and locked to form locking, and an upper bottom support piece of each locking unit is positioned right above a lower bottom support piece to form a bottom support;
and 2, folding the box cover part to cover the top opening formed by the surrounding of the four side wall plates.
CN202010479073.9A 2020-05-29 2020-05-29 Self-locking bottom with bottom support structure, box blank and forming method thereof Pending CN111605853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010479073.9A CN111605853A (en) 2020-05-29 2020-05-29 Self-locking bottom with bottom support structure, box blank and forming method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010479073.9A CN111605853A (en) 2020-05-29 2020-05-29 Self-locking bottom with bottom support structure, box blank and forming method thereof

Publications (1)

Publication Number Publication Date
CN111605853A true CN111605853A (en) 2020-09-01

Family

ID=72194161

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010479073.9A Pending CN111605853A (en) 2020-05-29 2020-05-29 Self-locking bottom with bottom support structure, box blank and forming method thereof

Country Status (1)

Country Link
CN (1) CN111605853A (en)

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