CN212288930U - Crease structure convenient for folding and folding of packaging box - Google Patents

Abstract

The utility model provides a crease structure convenient for folding and folding of a packing box, which comprises an upper flip cover and a lower box body, wherein the upper flip cover is provided with a cover rear wall, a cover top wall, a cover front wall and a cover inserting edge which are sequentially and integrally connected, and the two sides of the cover rear wall and the cover front wall are respectively and integrally connected with a cover side flanging; the lower box body is provided with a box rear wall, a box bottom wall and a box front wall which are sequentially and integrally connected, and two sides of the box rear wall and the box front wall are respectively and integrally connected with box side flanges; the front folding joints of the paper boards among the cover rear wall, the cover top wall, the cover front wall and the cover inserting edge are punched with crease lines, the front folding joints of the paper boards among the box rear wall, the box bottom wall and the box front wall are also punched with crease lines, and the crease positions of some crease lines on the back side of the paper boards are respectively provided with at least one cutting mark which is uniformly spaced by a cutter along the creasing direction and is used for reducing the stress concentrated at the crease positions; the drawing force on the front surface of the paper board is released through the cutter marks, so that the whole box body is convenient to fold and form, and the folded box body is prevented from being tilted or not folded.

Description

Crease structure convenient for folding and folding of packaging box

[ technical field ] A method for producing a semiconductor device

The utility model relates to a cross cutting technique of box body especially relates to a crease structure convenient to packing carton turns over a foldings.

[ background of the invention ]

The known packets, in particular packets for cigarettes, are generally parallelepiped-shaped with four corners, or octahedral-shaped with rounded corners on both sides of the upper side, or decahedral with eight corners, the external parallelepiped-shaped packet generally consisting of a parallelepiped-shaped box made of a blank with a bending line and a collar placed between the packets inside the box; the existing cigarette packaging box is a box body which is formed by die cutting and cutting on a die cutting machine and then folding and processing through a flanging machine. In the working process, a printed large sheet with a plurality of cigarette packaging boxes which is designed and printed in advance is respectively die-cut into a plurality of flat box bodies with folding lines and cigarette packaging box finished products with box covers connected, then the supported cigarettes are put into the packaging boxes through the line production of an automatic packaging machine, and finally the cigarettes are packaged into boxes.

At present, the common packaging materials of the cigarette packaging box are white cardboard and kraft paper, the white cardboard is single-layer or multi-layer combined paper which is completely manufactured by bleaching chemical pulping and is fully glued, the fiber tissue is relatively uniform, the surface layer has filler and sizing material components, and the surface is coated with a layer of coating, so the raw material of the white cardboard packaging has an adhesive film besides the white cardboard, and the characteristics of the white cardboard determine that the prepared cigarette packaging box is not environment-friendly enough and can not be recycled; the kraft paper is made of bamboo pulp and wood pulp raw materials or all wood pulp raw materials, has the characteristics of good strength, strong tension, high bursting strength, strong tear resistance and pressure resistance, flexibility, firmness, pull resistance, wear resistance, environmental protection, recycling, cost saving and the like, has the characteristics of moisture resistance, water resistance, oil immersion resistance, low-temperature freezing resistance, insurance delay and the like, and has much lower cost than common packaging materials in comparison with packaging materials such as plastics, glass and the like under the condition of little performance difference.

In the forming process of the cigarette packaging box, no matter white cardboard or kraft paper is adopted, in order to facilitate the turnover of the box cover, in the die cutting process, the die cutting die is provided with turnover indentation sheets at different surface bodies and side turnover connecting parts of the box body, different surface bodies and side turnover connecting parts of the box cover and connecting parts of the box body and the box cover, so that the turnover crease lines are arranged at the turnover connecting parts of the box body and the box cover of the die-cut cigarette packaging box. Because the cigarette packing box is made of paper materials, the procedures of ink absorption and coloring in the front process and drying in the middle process are carried out in the printing process, so that the cigarette packing box has certain flexibility, and the flat cigarette packing box is often arched in the subsequent gold stamping and die cutting forming processes, so that the joint of the box cover and the box body is not closed in place or is misplaced; or some packing cardboards with higher stiffness, such as kraft paper with strong tensile resistance, can have different surface bodies and side folding crease positions of the box body, different surface bodies and side folding crease positions of the box cover, and crease connecting positions of the box cover and the box body, stress is concentrated, in the using process, the box body and the box cover can not be folded in place, the box body and the box cover are not easy to stick or the different positions of the whole cigarette case are actively tilted, so that the box cover cannot be effectively matched in a sealing manner relative to the box body, and the using effect is influenced.

In addition, after the cigarette package is formed, the turnover part at the back of the box body or the box cover is arched, so that part of the flat cigarette package box becomes waste products without being produced by a printing factory, and after the turnover mark at the top of the box body or the box cover is arched, the phenomenon of blocking a card slot due to unevenness can also occur when the automatic packaging machine is in line production, so that not only is the material wasted, but also the production cost is increased; affecting production efficiency. Meanwhile, the cigarette which is not closed in place or is misplaced at the packaging interface and is arched at the back of the cigarette box cover also influences the attractive appearance of the cigarette packaging box, and is easy to cause adverse effects caused by the fact that consumers mistakenly consider the cigarette to be a fake and fake product.

Therefore, in the current miniaturized box body packaging industry, particularly in the cigarette packaging box, how to improve the connecting structure at the crease of the packaging box, prevent the tilting and facilitate the quick and easy folding of the box cover relative to the box body is a technical problem which needs to be solved urgently in the current box body packaging industry.

[ Utility model ] content

The utility model provides a be convenient for whole box body to turn over a shaping, avoided cigarette packing box packing shaping back effectively, the lid does benefit to the lid and opens and fold, the packing carton of being convenient for turns over a crease structure who folds and fold with box body junction and the arch-up phenomenon of the lid back.

In order to realize the purpose of the utility model, the utility model discloses a technical scheme be:

a crease structure convenient for folding and folding a packing box comprises an upper turnover cover and a lower box body, wherein the upper turnover cover and the lower box body are integrally formed by die cutting of a paper board;

the upper flip cover is provided with a cover rear wall, a cover top wall, a cover front wall and a cover inserting edge which are sequentially and integrally connected, and the two sides of the cover rear wall and the cover front wall are respectively and integrally connected with a cover side flanging which is used for connecting the cover rear wall, the cover top wall, the cover front wall and the cover inserting edge into a cover body through flanging and folding;

the lower box body is provided with a box rear wall, a box bottom wall and a box front wall which are sequentially and integrally connected, and the two sides of the box rear wall and the box front wall are respectively and integrally connected with a box side flanging which is used for connecting the box rear wall, the box bottom wall and the box front wall in a sticking and sticking way to form a box body after flanging and folding;

the cover rear wall of the upper turnover cover is integrally folded and hinged to the box rear wall of the lower box body, and the upper turnover cover is rotatably opened relative to the lower box body or is inserted into the lower box body through a cover inserting edge to be sealed;

a first crease line is punched at the front folding joint of the paper board between the cover rear wall and the cover top wall, a second crease line is punched at the front folding joint of the paper board between the cover top wall and the cover front wall, a third crease line is punched at the front folding joint of the paper board between the cover front wall and the cover inserting edge, cover ridge crease lines are punched at the front folding joints of the paper board between the two sides of the cover rear wall and the cover front wall and the cover side flanging at the two sides respectively,

a fourth crease line is stamped at the folding connection part of the front side of the paper board between the cover rear wall and the box rear wall;

a fifth creasing line is stamped at the front folding joint of the paper board between the box rear wall and the box bottom wall, a sixth creasing line is stamped at the front folding joint of the paper board between the box bottom wall and the box front wall, and box ridge creasing lines are stamped at the front folding joints of the paper board between the two sides of the box rear wall and the box front wall and the box side flanging at the two sides of the box rear wall and the box front wall;

at least one cutting or linear continuous cutting which is uniformly spaced by a cutter along the indentation direction is respectively arranged at the indentation positions of the first indentation line, or/and the second indentation line, or/and the third indentation line, or/and the cover edge indentation line, or/and the fifth indentation line, or/and the sixth indentation line, or/and the box edge indentation line on the reverse side of the paperboard, and the cutting is used for relieving the concentrated stress at the indentation positions, facilitating the folding and forming and preventing the folding and the tilting or the closing of the folding and the forming.

Furthermore, inclined cover surfaces which are positioned at edges and corners and are arranged in an inclined manner relative to the cover rear wall or the cover front wall are respectively arranged between the two sides of the cover rear wall and the cover front wall and the cover side flanges at the two sides of the cover rear wall and the cover front wall, and first cover ridge crease lines and second cover ridge crease lines are respectively punched at the folding connection positions of the inclined cover surfaces and the front sides of the paper boards among the cover rear wall, the cover front wall and the cover side flanges; inclined box surfaces which are positioned at edges and corners and are arranged in a converging and inclining way relative to the box rear wall or the box front wall are respectively arranged between the two sides of the corresponding box rear wall and the box front wall and the box side flanges at the two sides, and first box edge crease lines and second box edge crease lines are respectively punched at the folding connection positions of the inclined box surfaces and the front sides of the paper boards among the box rear wall, the box front wall and the box side flanges; at least one cutting mark which is cut or linearly cut at equal intervals along the indentation direction by adopting a cutter, is used for slowing down the concentrated stress of the indentation part, is convenient for folding and forming and prevents the folding back from tilting or not closing is arranged at the indentation positions of the first cover edge indentation line, the second cover edge indentation line, the first box edge indentation line and the second box edge indentation line on the reverse side of the paperboard.

Furthermore, at least one cutting mark which is used for cutting or linearly cutting the indentation part at uniform intervals by adopting a cutter along the indentation direction, is used for slowing down the stress concentrated at the indentation part and preventing the upper flip cover from tilting or not closing relative to the lower box body is respectively arranged at the indentation parts of the first indentation line, the second indentation line and the third indentation line on the back surface of the upper flip paper board.

Furthermore, fillet cover faces which are positioned at edges and are arranged in an inward convergent arc shape relative to the cover front wall are respectively arranged between the two sides of the cover front wall and the cover side flanging, and seven arc-surface cover edge crease lines which are uniformly distributed are respectively punched at the folding connection positions of the fillet cover faces and the front surface of the paper board between the cover front wall and the cover side flanging; rounded box faces which are positioned at the edges and are arranged in a converging and inclining way relative to the box front wall are respectively arranged between the two sides of the corresponding box front wall and the box side flanging, and seven evenly distributed cambered box edge crease lines are respectively punched at the folding connection positions of the rounded box faces and the front side of the paper board between the box front wall and the box side flanging; at least one cutting mark which is uniformly cut or linearly cut at intervals by a cutter along the indentation direction, is used for slowing down the concentrated stress of the indentation part, is convenient for folding and forming and prevents the folding and unfolding or the closing of the folding and unfolding is arranged at the indentation part of the most middle one of the seven arc surface cover ridge indentation lines and the most middle one of the seven arc surface box ridge indentation lines on the back surface of the paper board.

Furthermore, the tool marks are one dashed line segment-shaped tool marks formed by uniformly cutting the tool marks at intervals along the indentation straight line direction, or two dashed line segment-shaped tool marks which are distributed on the upper side and the lower side of the indentation line respectively and are formed by uniformly cutting the tool marks at intervals along the indentation direction.

Furthermore, the cutter marks are a plurality of S-shaped cutter marks which are cut at uniform intervals along the indentation direction and are linearly arranged to form S-shaped arrangement cutter marks.

Furthermore, the tool marks are a plurality of oblique line segment-shaped uniformly spaced cutting marks which are arranged linearly along the indentation direction to form oblique line segment-shaped arranged tool marks.

Furthermore, the tool marks are at least one wavy linear tool mark extending in a wavy linear manner along the indentation direction, or at least one wavy linear tool mark extending in a wavy linear manner along the indentation direction.

Further, the depth of the knife mark is 1/3-2/3 of the thickness of the paperboard.

Further, the depth of the knife mark is 1/2 of the thickness of the paperboard.

The utility model has the advantages that:

the utility model discloses to the parallelepiped of four angles, or upside both sides have the octahedral of fillet, perhaps eight angle decahedral cigarette packing carton, the indentation department at lid cardboard reverse side indentation line is equipped with respectively one at least along the indentation direction adopt the even spaced of cutter cut or the threadiness is even the half surely wear, is used for slowing down indentation department stress concentration's tool mark, releases the positive tensile force of cardboard, make things convenient for cigarette case hem to paste the packing, prevent that the cigarette case from rolling over to paste the in-process perk. Moreover, when the automatic packaging machine is in line production, the phenomenon of card clamping grooves caused by unevenness is effectively prevented, the phenomenon that products are waste products without being discharged from a printing factory is prevented, the material waste is effectively reduced, the production cost is reduced, and the production efficiency is improved.

In addition, the knife marks at the indentation positions of the first indentation line, the second indentation line and the third indentation line on the reverse side of the paper board of the upper flip cover 1 also prevent the upper flip cover from tilting or closing relative to the lower box body, and the box cover can not actively tilt relative to the box body in the using process, so that the upper flip cover and the lower flip cover can be effectively matched in a sealing manner, and the opening and the closing are convenient.

The cutting marks can be respectively arranged in a dotted line segment shape, a diagonal line segment shape, a plurality of S-shaped uniform interval linear arrangements, a wave line shape or a linear shape, namely, the stretching force on the front side of the paperboard is released by impressing on the front side of the paperboard and correspondingly cutting or connecting the cutting marks on the back side of the paperboard at the impressing line position, so that the stress can not be concentrated at the impressing folding position.

[ description of the drawings ]

Fig. 1 is a schematic structural view of a box body in an expanded state according to an embodiment of the present invention;

fig. 2 is a schematic view of a three-dimensional assembly structure according to a first embodiment of the present invention;

FIG. 3 is an enlarged partial view of the structure of FIG. 2 taken at the transverse section A-A;

FIG. 4 is a partially enlarged schematic view of a longitudinal section corresponding to the section A-A in FIG. 2;

FIG. 5 is an enlarged schematic view of a first embodiment of the present invention, wherein the tool marks are in the shape of two parallel dotted lines;

FIG. 6 is an enlarged schematic view of a first embodiment of the present invention, wherein the tool marks are in the shape of a single dotted line;

FIG. 7 is an enlarged schematic view of a structure of the first embodiment of the present invention in which the tool marks are arranged in oblique line segments;

FIG. 8 is an enlarged schematic view of a first embodiment of the present invention, wherein the tool marks are arranged in a plurality of S-shapes at regular intervals;

FIG. 9 is an enlarged schematic view of a linear cutting structure with a cutting mark in an undulated line shape according to a first embodiment of the present invention;

FIG. 10 is an enlarged schematic view of a linear line-shaped cutting trace with wavy lines according to a first embodiment of the present invention;

fig. 11 is an enlarged schematic view of a first embodiment of the present invention, in which the tool marks are linearly half-cut;

FIG. 12 is a structural diagram of a second case according to an embodiment of the present invention in an expanded state;

fig. 13 is a schematic perspective view of a second embodiment of the present invention;

fig. 14 is a schematic perspective view of a second embodiment of the present invention with the lid open;

fig. 15 is a structural schematic diagram of the three box bodies according to the embodiment of the present invention in an expanded state;

fig. 16 is a schematic perspective view of a three-dimensional assembly structure according to a third embodiment of the present invention;

the following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

[ detailed description ] embodiments

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

Example one

A crease structure convenient for folding and folding of a packing box is applied to a cigarette packing box in a shape of a parallelepiped with four corners, as shown in figures 1 to 4, and comprises an upper flip 1 and a lower box body 2, wherein the upper flip 1 and the lower box body 2 are integrally formed by die cutting of a paper board; the upper turning cover 1 is provided with a cover rear wall 1a, a cover top wall 1b, a cover front wall 1c and a cover inserting edge 1d which are sequentially and integrally connected, and two sides of the cover rear wall 1a and the cover front wall 1c are respectively and integrally connected with a cover side turning edge 1e which is used for bonding and connecting the cover rear wall 1a, the cover top wall 1b, the cover front wall 1c and the cover inserting edge 1d to form a cover body through turning edges and folding; the lower box body 2 is provided with a box rear wall 20, a box bottom wall 21 and a box front wall 22 which are sequentially and integrally connected, and two sides of the box rear wall 20 and the box front wall 22 are respectively and integrally connected with a box side flanging 23 which is used for adhering and connecting the box rear wall 20, the box bottom wall 21 and the box front wall 22 into a box body through flanging and folding; the lid back wall 1a of the upper lid 1 is integrally creased and hinged to the box back wall 20 of the lower box 2, and the upper lid 1 is rotated to open or rotated relative to the lower box 2 and then inserted into the lower box 2 through the lid insertion edge 1d for sealing.

As shown in fig. 1 to 4, a first crease line 3 is formed at the folding joint of the front side Z of the cardboard between the lid rear wall 1a and the lid top wall 1b, a second crease line 4 is formed at the folding joint of the front side Z of the cardboard between the lid top wall 1b and the lid front wall 1c, a third crease line 5 is formed at the folding joint of the front side Z of the cardboard between the lid front wall 1c and the lid insertion edge 1d, and lid ridge crease lines 6 are stamped at the folding joints of the front side Z of the cardboard between the two sides of the lid rear wall 1a and the lid front wall 11 and the lid side flaps 1e at the respective two sides; a fourth crease line 7 is punched at the folding joint of the front surface Z of the paperboard between the cover rear wall 1a and the box rear wall 20, a fifth crease line 8 is punched at the folding joint of the front surface Z of the paperboard between the box rear wall 20 and the box bottom wall 21, a sixth crease line 9 is punched at the folding joint of the front surface Z of the paperboard between the box bottom wall 21 and the box front wall 22, and box ridge crease lines 10 are punched at the folding joints of the front surface Z of the paperboard between the two sides of the box rear wall 20 and the box front wall 22 and the box side flanging 23 at the two sides;

the first indentation line 3, the second indentation line 4, the third indentation line 5, the cover edge indentation line 6 of the upper flip 1 cardboard reverse side F and the fifth indentation line 8, the sixth indentation line 9, the box edge indentation line 10 of the lower box 2 cardboard reverse side F are respectively provided with a cutting which adopts a cutter to evenly separate along the indentation direction, a knife mark 11 for reducing the stress concentration of the indentation part, facilitating the cardboard turnover and preventing warping, and the depth of the knife mark 11 is half-cut, namely 1/2 of the cardboard thickness. The utility model discloses a cigarette case, including upper flip 1 cardboard reverse side F, first indentation line 3, second indentation line 4, third indentation line 5, the knife mark 11 of indentation department still plays and prevents that upper flip 1 from closing and not closing relative lower box body 2 perk, and in the use of cigarette case, the effective assembly that closes after being opened of the multiple opening of the relative lower box body 2 of upper flip 1 of being convenient for, prevent that upper flip 1 of cigarette case from opening the back and not closing or not closing tightly, influence middle process's result of use.

As shown in fig. 5, the two tool marks 11 are respectively distributed on the upper side and the lower side of the indentation line, and are evenly and intermittently slit along the indentation direction to form two mutually parallel broken line segment-shaped tool marks.

As shown in fig. 6, the tool mark 11 is a tool mark which is cut at regular intervals along the indentation straight line direction to form a dashed line segment.

As shown in fig. 7, the tool mark 11 is a plurality of oblique line segment-shaped tool marks which are cut at regular intervals in the indentation direction and are linearly arranged to form oblique line segments.

As shown in fig. 8, the tool mark 11 is an S-shaped arrangement tool mark formed by cutting a plurality of S-shaped lines at regular intervals in the indentation direction and linearly arranging the lines.

As shown in fig. 9 to 11, the difference from fig. 5 to 8 lies in that the indentations of the first crease line 3, the second crease line 4 and the third crease line 5 on the reverse side of the cardboard of the upper flip 1 are respectively provided with a knife mark 12 which is linearly cut by a cutter along the indentation direction, is used for relieving the stress concentrated at the indentations and preventing the upper flip 1 from tilting or closing relative to the lower box body 2. As shown in fig. 9, the tool mark 12 is an undulated line-shaped tool mark extending in an undulated line shape along the indentation direction; as shown in fig. 10, the tool mark 12 is a wavy linear tool mark extending in a wavy linear manner along the indentation direction; as shown in fig. 11, linear cutting marks 12 are respectively arranged at the indentations of the first indentation line 3, the second indentation line 4 and the third indentation line 5 on the reverse side of the paperboard of the upper flip 1, which are linearly and continuously cut by adopting a cutter along the indentation direction, are used for relieving the stress concentrated at the indentations and preventing the upper flip 1 from tilting or closing relative to the lower box body 2,

through punching press first indentation line 3, second indentation line 4 and third indentation line 5 respectively at upper flip 1 cardboard front to be equipped with respectively at the indentation department of first indentation line 3, second indentation line 4 and third indentation line 5 at upper flip 1 cardboard reverse side and adopt the even spaced cutting of cutter or the continuous cutting of threadiness along the indentation direction, reach the stress that slows down indentation department and concentrate, prevent that upper flip 1 from closing not together to 2 perks of lower box body. The cutting marks can be respectively arranged in a dotted line segment shape, a diagonal line segment shape, a plurality of S-shaped uniform interval linear arrangements, a wave line shape or a linear shape, namely, the stretching force on the front side of the paperboard is released by impressing on the front side of the paperboard and correspondingly cutting or connecting the cutting marks on the back side of the paperboard at the impressing line, so that the stress can not be concentrated on the upper flip cover 1, and the folding of the upper flip cover 1 is facilitated.

Meanwhile, the box cover does not actively tilt relative to the box body in the using process, so that the box cover and the box body can be effectively matched in a sealing manner, and the opening and the reclosing are convenient; moreover, when the cigarette packaging box is convenient and the cigarette packaging box is subjected to line production by an automatic packaging machine, the phenomenon of card clamping grooves caused by unevenness is effectively prevented, products are prevented from becoming waste products without being discharged from a printing factory, the waste materials are effectively reduced, the production cost is reduced, and the production efficiency is improved.

Example two

As shown in fig. 12 to 14, the crease structure is applied to an eight-corner decahedral cigarette packaging box, in this embodiment, the knife-cut structure shown in fig. 5 to 11 in the first embodiment is adopted, and the difference from the first embodiment is that an inclined lid surface 13 which is located at a corner and is caulked and obliquely arranged relative to the lid back wall or the lid front wall is further respectively arranged between two sides of the lid back wall 1a and the lid front wall 1c and the lid side turned edges 1e at the two sides, and a first lid rib crease line 14 and a second lid rib crease line 15 are respectively punched at the folding connection of the front side of the paper board between the inclined lid surface 13 and the lid back wall 1a, the lid front wall 1c and the lid side turned edges 1e, namely, the lid rib crease line 6 in the first embodiment is replaced by the inclined lid surface 13, the first lid rib crease line 14 and the second lid rib crease line 15 in this embodiment; inclined box surfaces 16 which are positioned at edges and corners and are arranged in a converging and inclining way relative to the box rear wall 20 or the box front wall 22 are respectively arranged between two sides of the corresponding box rear wall 20 and the box front wall 22 and box side flanges 23 at two sides, and a first box edge crease line 17 and a second box edge crease line 18 are respectively punched at the folding connection positions of the front sides of the paper boards among the inclined box surfaces 16, the box rear wall 20, the box front wall 22 and the box side flanges 23; that is, the box rib score line 10 in the first embodiment is replaced by the inclined box surface 16, the first box rib score line 17 and the second box rib score line 18 in this embodiment.

The indentation positions of the first cover ridge indentation line 14, the second cover ridge indentation line 15, the first box ridge indentation line 17 and the second box ridge indentation line 18 are respectively provided with two dotted line segment-shaped knife marks which are respectively distributed on the upper side and the lower side of the indentation line and are uniformly divided and cut into two mutually parallel dotted line segments along the indentation direction at intervals, the dotted line segment-shaped knife marks are shown in figure 5 in the first embodiment to release the tensile force on the front surface of the paperboard, so that the stress can not be concentrated on the indentation positions of the first cover ridge indentation line 14, the second cover ridge indentation line 15, the first box ridge indentation line 17 and the second box ridge indentation line 18, the eight corners of the cigarette packaging box can be conveniently folded and formed, and the phenomenon that the box body is not closed or stuck and then warped in the folding process is avoided.

In addition, in this embodiment, a fourth creasing line 7 is stamped at the folding and folding connection position of the front surface Z of the paperboard between the cover rear wall 1a and the box rear wall 20, and a knife cut in the shape of a dotted line segment is further arranged at the creasing position of the fourth creasing line 7 at uniform intervals along the creasing direction, so that the box cover does not actively tilt relative to the box body in the using process, the box cover can be effectively in sealing fit with the box body, and the box cover is convenient to open and close again.

EXAMPLE III

As shown in fig. 15 and 16, the crease structure is applied to an octahedral cigarette packing box with rounded corners on two sides of the upper side, and in this embodiment, the knife-cut structure shown in fig. 5 to 11 in the first embodiment is also adopted, and the difference from the first embodiment is that rounded corner cover faces 1f which are located at the corners and are arranged in a converging arc shape relative to the cover front wall 1c are respectively arranged between two sides of the cover front wall 1c and the cover side turned edge 1e, and seven evenly distributed arc-shaped cover ridge pressing crease lines 30 are respectively punched at the folding connection positions of the front side of the paper board between the rounded corner cover faces 1f and the cover front wall 1c and the cover side turned edge 1 e; and rounded box faces 24 which are positioned at edges and are arranged in an inclined manner relative to the box front wall are respectively arranged between the two sides of the corresponding box front wall 1c and the box side flanging 1e, and seven uniformly-distributed arc-shaped box edge crease lines 31 are respectively stamped at the front folding connection positions of the paper boards between the rounded box faces 24 and the box front wall 1c as well as between the rounded box faces 24 and the box side flanging 1 e. Wherein, the indentation of the middle one of the seven arc cover edge crease lines 30 and the middle one of the seven arc box edge crease lines 31 on the back side of the paperboard is respectively provided with a cutting mark which is uniformly and alternately cut by a cutter along the indentation direction, is used for slowing down the concentrated stress of the indentation, is convenient for folding and forming and preventing the folded part from tilting or being not closed, and the cutting mark is a cutting mark which is uniformly and alternately cut along the indentation linear direction to form a dotted line segment shape; like this, release the positive tensile force of cardboard through dotted line segment form tool mark for the fillet capping and fillet box face department can not concentrated to stress, and the fillet capping 1f and the rolling over of fillet box face 24 department of this cigarette pack of being convenient for turn over a shaping, avoid the box body to turn over a in-process, do not close or stick the back perk at fillet capping 1f and fillet box face 24 department.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above-described embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made according to the equivalent changes of the shape, structure and principle of the utility model within the spirit and principle of the utility model should be covered in the protection scope of the utility model.

Claims (10)

1. A crease structure convenient for folding and folding a packing box comprises an upper turnover cover and a lower box body, wherein the upper turnover cover and the lower box body are integrally formed by die cutting of a paper board; the method is characterized in that:

the upper flip cover is provided with a cover rear wall, a cover top wall, a cover front wall and a cover inserting edge which are sequentially and integrally connected, and the two sides of the cover rear wall and the cover front wall are respectively and integrally connected with a cover side flanging which is used for connecting the cover rear wall, the cover top wall, the cover front wall and the cover inserting edge into a cover body through flanging and folding;

the lower box body is provided with a box rear wall, a box bottom wall and a box front wall which are sequentially and integrally connected, and the two sides of the box rear wall and the box front wall are respectively and integrally connected with a box side flanging which is used for connecting the box rear wall, the box bottom wall and the box front wall in a sticking and sticking way to form a box body after flanging and folding;

the cover rear wall of the upper turnover cover is integrally folded and hinged to the box rear wall of the lower box body, and the upper turnover cover is rotatably opened relative to the lower box body or is inserted into the lower box body through a cover inserting edge to be sealed;

a first crease line is punched at the front folding joint of the paper board between the cover rear wall and the cover top wall, a second crease line is punched at the front folding joint of the paper board between the cover top wall and the cover front wall, a third crease line is punched at the front folding joint of the paper board between the cover front wall and the cover inserting edge, cover ridge crease lines are punched at the front folding joints of the paper board between the two sides of the cover rear wall and the cover front wall and the cover side flanging at the two sides respectively,

a fourth crease line is stamped at the folding connection part of the front side of the paper board between the cover rear wall and the box rear wall;

a fifth creasing line is stamped at the front folding joint of the paper board between the box rear wall and the box bottom wall, a sixth creasing line is stamped at the front folding joint of the paper board between the box bottom wall and the box front wall, and box ridge creasing lines are stamped at the front folding joints of the paper board between the two sides of the box rear wall and the box front wall and the box side flanging at the two sides of the box rear wall and the box front wall;

at least one cutting or linear continuous cutting which is uniformly spaced by a cutter along the indentation direction is respectively arranged at the indentation positions of the first indentation line, or/and the second indentation line, or/and the third indentation line, or/and the cover edge indentation line, or/and the fifth indentation line, or/and the sixth indentation line, or/and the box edge indentation line on the reverse side of the paperboard, and the cutting is used for relieving the concentrated stress at the indentation positions, facilitating the folding and forming and preventing the folding and the tilting or the closing of the folding and the forming.

2. The folding crease structure convenient for folding and folding of a packing box according to claim 1, wherein inclined cover faces which are positioned at corners and are obliquely converged relative to the cover rear wall or the cover front wall are respectively arranged between the two sides of the cover rear wall and the cover front wall and the cover side flanging at the two sides, and a first cover ridge creasing line and a second cover ridge creasing line are respectively punched at the folding connection positions of the inclined cover faces and the front paper board between the cover rear wall, the cover front wall and the cover side flanging; inclined box surfaces which are positioned at edges and corners and are arranged in a converging and inclining way relative to the box rear wall or the box front wall are respectively arranged between the two sides of the corresponding box rear wall and the box front wall and the box side flanges at the two sides, and first box edge crease lines and second box edge crease lines are respectively punched at the folding connection positions of the inclined box surfaces and the front sides of the paper boards among the box rear wall, the box front wall and the box side flanges; at least one cutting mark which is cut or linearly cut at equal intervals along the indentation direction by adopting a cutter, is used for slowing down the concentrated stress of the indentation part, is convenient for folding and forming and prevents the folding back from tilting or not closing is arranged at the indentation positions of the first cover edge indentation line, the second cover edge indentation line, the first box edge indentation line and the second box edge indentation line on the reverse side of the paperboard.

3. The crease structure convenient for folding and folding of a packing box according to claim 1 is characterized in that at least one cutting mark which is cut or linearly cut at regular intervals by a cutter along the creasing direction, is used for relieving the stress concentrated at the creasing position and preventing the upper flip cover from being tilted or not folded relative to the lower box body is respectively arranged at the creasing positions of the first creasing line, the second creasing line and the third creasing line on the reverse side of the upper flip paper board.

4. The folding crease structure convenient for folding and folding of a packing box according to claim 1, wherein rounded cover faces which are positioned at edges and are arranged in an arc shape relative to the inner part of the cover front wall are respectively arranged between two sides of the cover front wall and the cover side flanging, and seven evenly distributed arc-surface cover edge crease lines are respectively punched at the folding and connecting positions of the rounded cover faces, the cover front wall and the cover side flanging on the front surface of the paper board; rounded box faces which are positioned at the edges and are arranged in a converging and inclining way relative to the box front wall are respectively arranged between the two sides of the corresponding box front wall and the box side flanging, and seven evenly distributed cambered box edge crease lines are respectively punched at the folding connection positions of the rounded box faces and the front side of the paper board between the box front wall and the box side flanging; at least one cutting mark which is uniformly cut or linearly cut at intervals by a cutter along the indentation direction, is used for slowing down the concentrated stress of the indentation part, is convenient for folding and forming and prevents the folding and unfolding or the closing of the folding and unfolding is arranged at the indentation part of the most middle one of the seven arc surface cover ridge indentation lines and the most middle one of the seven arc surface box ridge indentation lines on the back surface of the paper board.

5. The folding line structure convenient for folding and folding of a packing box according to any one of claims 1 to 4 is characterized in that the tool mark is a broken line segment-shaped tool mark formed by uniformly cutting at intervals along the indentation straight line direction, or two broken line segment-shaped tool marks which are respectively distributed on the upper side and the lower side of the indentation line and are uniformly cut at intervals along the indentation direction and are parallel to each other.

6. The folding structure convenient for folding and folding of a packing box according to any one of claims 1 to 4, wherein the knife mark is a plurality of S-shaped evenly spaced cutting marks arranged in a straight line along the indentation direction to form S-shaped arranged knife marks.

7. The folding structure convenient for folding and folding of a packing box according to any one of claims 1 to 4, wherein the knife mark is a plurality of oblique line segment-shaped knife marks which are cut at uniform intervals along the indentation direction and are linearly arranged to form oblique line segment-shaped arranged knife marks.

8. The folding structure for facilitating folding and folding of a packing box according to any one of claims 1 to 4, wherein the cutting mark is at least one wavy linear cutting mark extending in a wavy linear manner along the indentation direction, or at least one wavy linear cutting mark extending in a wavy linear manner along the indentation direction.

9. A crease structure for facilitating folding of a packing box according to any one of claims 1 to 4, wherein the depth of the knife mark is 1/3 to 2/3 of the thickness of the paperboard.

10. A crease structure for facilitating folding and folding of a packing box according to any one of claims 1 to 4, characterized in that the depth of the knife mark is 1/2 of the thickness of the paperboard.

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