CN109720682B - A box blank of a packaging box with display function - Google Patents

Abstract

The invention discloses a box blank of a packaging box with a display function, comprising: an outer box blank and a buffer box blank, the outer box blank is folded to form a rectangular outer box, and the buffer box blank is folded and then placed in the outer box; the outer box blank of the present invention has a simple structure, and the folded outer box can not only be closed, but also can display the objects inside, and can still be used in a closed state after the display, improving the utilization of the outer box Rate. Using pure corrugated cardboard as an outer box for monochrome printing is environmentally friendly, reducing process difficulty and saving costs.

Description

A box blank of a packaging box with display function

technical field

The invention belongs to the technical field of packaging, and in particular relates to a box blank of a packaging box with a display function.

Background technique

With the development and progress of the society, the living standard continues to improve, and the logistics and express delivery industry develops rapidly. Most of the packaging boxes occupy space and have no functional function. After the packaging carton has completed its task of loading items, people generally directly discard it, which is not environmentally friendly and has low utilization rate.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the purpose of the present invention is to provide a box blank of a packaging box with a display function.

For this reason, the technical scheme of the present invention is as follows:

A box blank of a packaging box with a display function, comprising: an outer box blank and a buffer box blank, the outer box blank is folded to form a rectangular outer box, and the buffer box blank is folded and placed in the outer box in; the outer box blank includes: a first side plate, a front plate, a second side plate and a rear plate that are connected in sequence along the transverse direction, and a first side plate or the rear plate is connected to connect the first side plate or the rear plate. The flaps of the side panel and the rear panel, so that the first side panel, the front panel, the second side panel and the rear panel can surround the sides of the outer box; The bottom edges of the two side panels and the rear panel are each connected with a bottom plate, and the four bottom plates can be assembled and locked with each other to form the locking bottom of the outer box;

A first concave opening is formed at the upper end of the front plate, the shape of the first concave opening is a rectangle or an inverted trapezoid, and the bottom edge of the first concave opening is located on the transverse centerline of the front plate; The top edge of the rear plate is connected with a cover plate used as the top surface of the outer box, the top edge of the cover plate is connected with a front side plate, and the height of the front side plate is equal to the height of the first recessed opening , a side connecting plate is respectively connected to the lateral two sides of the front side plate, the width of each side connecting plate is slightly larger than the width of the first side plate and the second side plate, and the two side connecting plates are mutually A locking tongue is connected to each of the far away edges;

An upper locking hole is formed on both lateral sides of the rear plate, and a lower locking hole is formed on the rear plate below each upper locking hole, so that the locking tongue can be inserted into the upper locking hole or In the lower lock hole, wherein the distance between the top end of the upper lock hole and the top edge of the rear plate and the distance between the bottom end of the lower lock hole and the bottom edge of the rear plate are the same as the distance between the lock tongue and the lock tongue. The distance between the bottom edge and the extension line of the bottom edge of the front side panel is the same;

A working line with the same shape and opposite position as the first concave opening is formed on the rear plate, the bottom edge of the working line is a connecting fold line, and the rest are easy torn dotted lines;

The buffer box blank is composed of a buffer bottom box blank and two buffer bracket blanks, wherein,

The buffer bottom box blank is a rectangular cardboard with a width slightly smaller than the front plate and is symmetrical up and down, and a first lower fold line, a second lower fold line, a first lower fold line, a second lower fold line, and a first lower fold line are arranged on the rectangular cardboard at intervals along the length direction of the rectangular cardboard. an upper fold line, a first upper fold line, a second lower fold line and a first lower fold line, the first lower fold line and the second lower fold line are fold lines for bending to the bottom of the buffer bottom box blank, the first The upper fold line is a fold line used for bending to the upper surface of the buffer bottom box blank; the edge of the rectangular cardboard parallel to its width direction is the first width edge, and two pieces of the first width edge are cut from each of the two edges perpendicular to the width. The first cutting line with the first width edge and spaced apart, the other end of the first cutting line is located at the first lower fold line close to the first width edge of the corresponding side; from each second lower fold line, 2 A second cutting line arranged at intervals and perpendicular to the second lower fold line, the other end of the second cutting line is located between the first lower fold line and the first width edge on the corresponding side; the first cutting line and the second cutting line are respectively arranged symmetrically along the transverse center line and the longitudinal center line of the rectangular cardboard;

The two buffer support box blanks have the same structure and are both strip-shaped rectangular cardboards, and a third lower folding line, a fourth lower folding line, a fifth lower folding line and a sixth lower folding line are sequentially pressed on each of the strip-shaped rectangular cardboards, The third lower fold line, the fourth lower fold line, the fifth lower fold line and the sixth lower fold line are all fold lines for bending below the strip-shaped rectangular cardboard;

The edge of the strip-shaped rectangular cardboard parallel to its width direction is the second width edge, and a rectangular third concave opening is formed on the second width edge close to the third lower fold line, and the third concave opening is on opposite sides. A buffer sheet is respectively connected to the edges of the lower fold line; a rectangular fourth concave opening is formed on the edge of the second width close to the sixth lower fold line; a fourth lower fold line is cut to form a a special-shaped cutting line, the shape of the special-shaped cutting line is the same as the line shape on the cross section of the structure formed after the buffer bottom box blank is folded;

Wherein, the width of the third concave opening and the fourth concave opening are respectively the same as the distance between the two first upper fold lines; the edge of the rectangular cardboard parallel to its length direction is the first length edge, and the first length edge is the first length edge. The distance between the fifth lower fold line and the sixth lower fold line is slightly smaller than the distance between the first length edge and the first cutting line.

In the above technical solution, a dust-proof plug-in board is connected to the bottom edge of each of the side connecting boards.

In the above technical solution, the length of the buffer sheet is smaller than the depth of the third concave opening and is close to the bottom of the third concave opening.

In the above technical solution, the special-shaped cutting line is formed with two second rectangular ridges and a first rectangular ridge located between the two second rectangular ridges, the first rectangular ridge and the two second rectangular ridges are formed. The two rectangular protruding strips mesh with each other to form a plane.

The method for folding the above-mentioned outer box blank into an outer box in a closed state comprises the following steps:

a) Adhere the first side panel and the back panel through the flap, and assemble and lock the four bottom panels, so that the first side panel, the front panel, the second side panel, the back panel and the four bottom panels are formed an open said outer box;

b) bending the cover plate by 90° along the connecting line between the cover plate and the rear plate, so that the cover plate forms the top surface of the outer box;

c) Bend the front side panel 90° to the bottom surface of the outer box along the connecting line between the front side panel and the cover panel, and connect the two side connection panels to the front panel along the side connection panel The connecting line between the side plates is bent at 90°, so that the two side connecting plates are in close contact with the first side plate or the second side plate on the corresponding side respectively; The connecting lines between the connecting plates are bent at 90°, and the two locking tongues are inserted into the two locking holes respectively.

The method for folding the above-mentioned outer box blank into an outer box in a display state includes the following steps:

1) Adhere the first side panel and the rear panel through the flap, and assemble and lock the 4 bottom panels, so that the first side panel, the front panel, the second side panel, the rear panel and the 4 bottom panels are formed an open said outer box;

2) Disconnect the easy-tear dotted line, and bend the rear panel above the connection fold line backwards along the connection fold line, so that the rear panel located above the connection fold line is in close contact with the rear panel below the connection fold line. The cover plate is bent along the connecting line between the cover plate and the rear plate, so that the cover plate is closely attached to the bottom surface of the outer box;

3) Bend the front side panel 90° along the connecting line between the front side panel and the cover panel, so that the front side panel is close to the front panel, and connect the two side connecting panels along the side The connecting line between the board and the front side board is bent at 90°, so that the two side connecting boards are in close contact with the first side board or the second side board on the corresponding side respectively; The connecting line between the locking tongue and the side connecting plate is bent at 90°, and the two locking tongues are respectively inserted into the two lower locking holes.

The method for folding a buffer box blank into a buffer box as described above includes the following steps:

(1) The buffer bracket blanks are located on opposite sides of the buffer bottom box blank respectively and the lower surface of each buffer bracket blank is facing the buffer bottom box blank, so that the first upper fold line is perpendicular to the buffer bracket blank, and the second width edge is parallel to the plane where the buffer bottom box blank is located;

(2) Bend 90° to the bottom of the rectangular cardboard along the first lower fold line and the second lower fold line of the rectangular cardboard, and bend 90° to the upper side of the rectangular cardboard along the first upper fold line to obtain a linear shape on the cross section. A buffer bottom in the same shape as the profiled cutting line;

(3) Put the special-shaped cutting lines of the two buffer support box blanks on the two ends of the buffer bottom respectively, so that the buffer bottom box blanks are bent along the shape of the special-shaped cutting lines in the special-shaped cutting lines. fold;

(4) Perform the following operations on both of the two buffer bracket blanks: bend 90° to the bottom of the buffer bracket blank along the fourth lower fold line, the fifth lower fold line and the sixth lower fold line, and bend the buffer bracket blanks by 90° along the fourth lower fold line, the fifth lower fold line and the sixth lower fold line. The three lower fold lines are bent 100-120° below the buffer bracket blank; insert the ends of the buffer bracket blank located on both sides of the third recessed opening into the second cutting line close to the buffer bracket blank respectively in; insert the ends of the buffer support box blanks located on both sides of the fourth recessed opening into the first cutting lines adjacent to the buffer support box blanks respectively.

In the above technical solution, in the step (3), when the first lower fold line and the second lower fold line are bent 90° below the rectangular cardboard, and the first upper fold line is bent to the upper side of the rectangular cardboard After 90°, the buffer bottom forms two second grooves with downward openings and a first groove with upward openings located between the two second grooves.

In the above technical solution, when the special-shaped cutting lines of the two buffer bracket blanks are respectively sleeved on one end of the buffer bottom, the first rectangular protruding strip is located in the first groove and is connected with the first rectangular ridge. The inner wall of a groove is compatible, and the second rectangular protruding strip is located in the second groove and is compatible with the inner wall of the second groove.

Compared with the prior art, the outer box blank of the present invention has a simple structure, and the folded outer box can not only be closed, but also can display the objects inside. utilization. Using pure corrugated cardboard as an outer box for monochrome printing is environmentally friendly, reducing process difficulty and saving costs.

The buffer box folded from the buffer box blank of the invention is easy to assemble, and the left and right parts of the inner contents are tightened through the structural molding, which plays a fixing role and protects the surface of the object from being scratched due to transportation collision. There are buffer spaces on all six sides of the buffer structure, which can protect the contents during transportation.

Description of drawings

Fig. 1 is the structural representation of the outer box blank of the present invention;

Fig. 2 is the structural representation of the outer box of the present invention under the closed state;

Fig. 3 is the structural representation of the outer box of the present invention under the display state;

4 is a schematic structural diagram of the outer box of the invention being converted from a closed state to a display state;

5 is a schematic structural diagram of a buffer bottom box blank of the present invention;

6 is a schematic structural diagram of a buffer support box blank of the present invention;

7 is a schematic structural diagram of the buffer box folded into the buffer box blank of the present invention (in use state);

8 is a schematic structural diagram of a buffer box folded from a buffer box blank of the present invention;

9 is a schematic structural diagram of the buffer box folded from the buffer box blank of the present invention (in use state);

FIG. 10 is a schematic structural diagram of the buffer box folded from the buffer box blank of the present invention.

Wherein, 1 is the first side plate, 2 is the first auxiliary lock hole, 3 is the second auxiliary lock hole, 4 is the bottom plate, 5 is the lower lock hole, 6 is the flap, 7 is the easy-tear dotted line, and 8 is the upper lock Holes, 9 is the cover plate, 10 is the dust-proof insert plate, 11 is the side connecting plate, 12 is the locking tongue, 13 is the front side plate, 14 is the rear plate, 15 is the second side plate, 16 is the front plate, 17 is the connection Fold line, 18 is the first lower fold line, 19 is the second lower fold line, 20 is the first upper fold line, 21 is the first length edge, 22 is the first width edge, 23 is the second cutting line, and 24 is the first cutting line , 25 is the buffer sheet, 26 is the third concave opening, 27 is the third lower folding line, 28 is the fourth lower folding line, 29 is the special-shaped cutting line, 30 is the fifth lower folding line, 31 is the sixth lower folding line, and 32 is the first lower folding line. Four concave openings, 33 is the first rectangular convex strip, 34 is the second rectangular convex strip, 35 is the second width edge, 36 is the second length edge, 37 is the second concave opening, 38 is the first concave opening, and 39 is the second concave opening. The first groove, 40 is the second groove, 41 is the outer box blank, 42 is the buffer box blank, 42-1 is the buffer bottom box blank, and 42-2 is the buffer bracket blank.

Detailed ways

In the technical solution of the present invention, the Nth lower broken lines are all straight lines.

The box blank of the packaging box with display function of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in the accompanying drawings 1 to 10, it includes: an outer box blank 41 and a buffer box blank 42, the outer box blank 41 is folded to form a rectangular outer box, and the buffer box blank 42 is folded and placed in the outer box; The box blank 41 includes: a first side panel 1, a front panel 16, a second side panel 15 and a rear panel 14 connected in sequence along the transverse direction, and a first side panel 1 or the rear panel 14 is connected with a first side panel for connecting the first side panel. The flaps 6 of the panel 1 and the rear panel 14, so that the first side panel 1, the front panel 16, the second side panel 15 and the rear panel 14 can surround the side of the outer box; The bottom edges of the second side panel 15 and the rear panel 14 are respectively connected with a bottom plate 4 , and the four bottom plates 4 can be assembled and locked (plugged) with each other to form a lock bottom of the outer box.

A first concave opening 38 is formed at the upper end of the front plate 16 , the shape of the first concave opening 38 is a rectangle or an inverted trapezoid, and the bottom edge of the first concave opening 38 is located on the lateral centerline of the front plate 16 ; The top edge is connected with a cover plate 9 used as the top surface of the outer box, a handle can be installed on the cover plate 9, and a front side plate 13 is connected to the top edge of the cover plate 9, and the height of the front side plate 13 is equal to the first recessed opening 38 height, one side connecting plate 11 is connected to the lateral sides of the front side plate 13 respectively, and the width of each side connecting plate 11 is slightly larger than the width of the first side plate 1 and the second side plate 15 (slightly larger by 2 Paper thickness), the edges of the two side connecting plates 11 away from each other are connected with a locking tongue 12 respectively.

An upper locking hole 8 is formed on both lateral sides of the rear plate 14, and a lower locking hole 5 is formed on the rear plate 14 below each upper locking hole 8, so that the lock tongue 12 can be inserted into the upper locking hole 8 or the lower locking hole 5. In the locking hole 5, the distance between the top end of the upper locking hole 8 and the top edge of the rear plate 14 and the distance between the bottom end of the lower locking hole 5 and the bottom edge of the rear plate 14 are the same as the bottom edge and the front side of the locking tongue 12. The distance between the extension lines of the bottom edge of the board 13 is the same. Preferably, when the upper locking hole and the lower locking hole are located between the flap and the rear plate, a part of the first side plate may overlap with the upper locking hole and the lower locking hole, at this time, the first side plate and the upper locking hole A first auxiliary lock hole 2 and a second auxiliary lock hole 3 are sequentially formed at the overlapping position of the hole and the lower lock hole.

A working line having the same shape as the first concave opening 38 and an opposite position is formed on the rear plate 14 . The easy-tear dotted line adopts an embedded tearing tape, such as the plastic tape on the folder currently used by SF Express for mailing. When the folder is opened, the cardboard at the location of the plastic tape can be broken by tearing the plastic tape.

The buffer box blank 42 is composed of a buffer bottom box blank 42-1 and two buffer bracket blanks 42-2, wherein,

The buffer bottom box blank 42-1 is a rectangular cardboard with a width slightly smaller than the front plate 16 and is symmetrical up and down. The rectangular cardboard is provided with a first lower fold line 18, a second lower fold line 19, a first lower fold line 18, a second lower fold line 19, An upper fold line 20, a first upper fold line 20, a second lower fold line 19 and a first lower fold line 18. The first lower fold line 18 and the second lower fold line 19 are fold lines for bending below the buffer bottom box blank 42-1 , the first upper fold line 20 is a fold line for bending to the buffer bottom box blank 42-1; the edge of the rectangular cardboard parallel to its width direction is the first width edge 22, and each of the two first width edges 22 is cut with 2 A first cutting line 24 perpendicular to the first width edge 22 and spaced apart, the other end of the first cutting line 24 is located near the first lower fold line 18 of the first width edge 22 on the corresponding side; from each second lower fold line 19 are each cut with 2 second cutting lines 23 arranged at intervals and perpendicular to the second lower fold line 19, and the other end of the second cutting line 23 is located between the first lower fold line 18 and the first width edge 22 on the corresponding side; The first cutting line 24 and the second cutting line 23 are respectively arranged symmetrically along the transverse center line and the longitudinal center line of the rectangular cardboard;

The two buffer bracket blanks 42-2 have the same structure and are both strip-shaped rectangular cardboards, and the third lower folding line 27, the fourth lower folding line 28, the fifth lower folding line 30 and the sixth lower folding line 27 are pressed sequentially on each strip-shaped rectangular cardboard. The lower fold line 31, the third lower fold line 27, the fourth lower fold line 28, the fifth lower fold line 30 and the sixth lower fold line 31 are all fold lines for bending under the strip-shaped rectangular cardboard;

The edge of the strip-shaped rectangular cardboard parallel to its width direction is the second width edge 35, and a rectangular third concave opening 26 is formed on the second width edge 35 close to the third lower fold line 27. The edges are respectively connected with a buffer piece 25 , and the length of the buffer piece 25 is smaller than the depth of the third concave opening 26 and is close to the bottom of the third concave opening 26 . The edge of the strip-shaped rectangular cardboard parallel to its length direction is the second length edge 36 .

A rectangular fourth concave opening 32 is formed on the second width edge 35 close to the sixth lower fold line 31; a special-shaped cutting line 29 is formed between the fourth lower fold line 28 and the fifth lower fold line 30, and the special-shaped cutting line 29 The shape is the same as the line shape on the cross section of the structure formed after the buffer bottom box blank 42-1 is folded; as shown in FIG. The first rectangular ridges 33 between the ridges 34, the first rectangular ridges 33 and the two second rectangular ridges 34 mesh with each other to form a plane.

The widths of the third concave opening 26 and the fourth concave opening 32 are respectively the same as the distance between the two first upper fold lines 20; the edge of the rectangular cardboard parallel to its length direction is the first length edge 21, and the fifth lower fold line 30 The distance from the sixth lower folding line 31 is slightly smaller than the distance between the first length edge 21 and the first cutting line 24 .

Preferably, a dust-proof plug board 10 is connected to the bottom edge of each side connecting board 11 .

The method for folding the box blank of the above-mentioned packaging box includes: a method for folding an outer box blank into an outer box in a closed state, a method for folding an outer box blank into an outer box in a display state, and a method for folding the buffer box blank into a buffer box, details as follows:

The method for folding an outer box blank into an outer box in a closed state includes the following steps:

a) Adhere the first side panel 1 and the rear panel 14 through the flaps 6, and assemble and lock the four bottom panels 4, so that the first side panel 1, the front panel 16, the second side panel 15, the rear panel 14 and 4 bottom plates 4 form an open outer box;

b) Bend the cover plate 9 by 90° along the connecting line between the cover plate 9 and the rear plate 14, so that the cover plate 9 forms the top surface of the outer box;

c) Bend the front side panel 13 along the connection line between the front side panel 13 and the cover panel 9 to the bottom surface of the outer box by 90°, and fold the two side connection panels 11 along the side connection panel 11 and the front side panel 13 The connecting line between the two is bent at 90°, so that the two side connecting plates 11 are in close contact with the first side plate 1 or the second side plate 15 of the corresponding side respectively; the two locking tongues 12 are connected to the side along the locking tongue 12 The connecting line between the plates 11 is bent at 90°, and the two locking tongues 12 are inserted into the two upper locking holes 8 respectively.

The method for folding an outer box blank into an outer box in a display state includes the following steps:

1) Adhere the first side panel 1 and the rear panel 14 through the flap 6, and assemble and lock (plug) the four bottom panels 4, so that the first side panel 1, the front panel 16, the second side panel 15. The rear plate 14 and the four bottom plates 4 form an open outer box;

2) Disconnect the easy-tear dotted line 7, and bend the rear panel 14 above the connection fold line 17 backwards (as shown in FIG. 4(k) ), so that the rear panel above the connection fold line 17 14 is close to the rear panel 14 located below the connecting fold line 17 (as shown in FIG. 4(l)), and the cover panel 9 is bent along the connection line between the cover panel 9 and the rear panel 14, so that the cover panel 9 is tightly Paste the bottom surface of the outer box (as shown in Figure 4(m));

3) Bend the front side panel 13 90° along the connecting line between the front side panel 13 and the cover panel 9, so that the front side is close to the front panel 16 (as shown in FIG. 4(n)), and 2 Each side connecting plate 11 is bent 90° along the connecting line between the side connecting plate 11 and the front side plate 13, so that the two side connecting plates 11 are in close contact with the first side plate 1 or the second side plate on the corresponding side respectively. 15 (as shown in Fig. 4(p)); Bend the two locking tongues 12 by 90° along the connecting line between the locking tongue 12 and the side connecting plate 11, and insert the two locking tongues 12 into the two lower locks respectively Hole 5 (as shown in Figure 4(q)).

A method for folding a buffer box blank into a buffer box includes the following steps:

(1) The buffer bracket blanks 42-2 are located on opposite sides of the buffer bottom blank 42-1 respectively, and the lower surface of each buffer bracket blank 42-2 faces the buffer bottom blank 42-1, so that the first upper The folding line 20 is perpendicular to the buffer support box blank 42-2, and the second width edge 35 is parallel to the plane where the buffer bottom box blank 42-1 is located;

(2) Bend 90° to the bottom of the rectangular cardboard along the first lower fold line 18 and the second lower fold line 19 of the rectangular cardboard, and bend 90° to the upper side of the rectangular cardboard along the first upper fold line 20 to obtain the linear and Buffer bottom with the same shape as the special-shaped cutting line 29;

(3) The special-shaped cutting lines 29 of the two buffer support box blanks 42-2 are respectively sleeved on both ends of the buffer bottom, so that the buffer bottom box blank 42-1 is in the special-shaped cutting line 29 along the shape of the special-shaped cutting line 29 Bending; in step i), after bending 90° to the bottom of the rectangular cardboard along the first lower folding line 18 and the second lower folding line 19 and bending 90° to the top of the rectangular cardboard along the first upper folding line 20, the buffer bottom is formed The two second grooves 40 with downward openings and the first grooves 39 with upward openings located between the two second grooves 40, when the special-shaped cutting lines 29 of the two buffer bracket blanks 42-2 are respectively When sleeved on one end of a buffer bottom, the first rectangular convex strip 33 is located in the first groove 39 and is compatible with the inner wall of the first groove 39, and the second rectangular convex strip 34 is located in the second groove 40 and is in line with the inner wall of the first groove 39. The inner wall of the second groove 40 is suitable, and the first rectangular ridge 33 and the second rectangular ridge 34 can support the first groove 39 and the second groove 40 in sequence.

(4) The following operations are performed for both the two buffer bracket blanks 42-2: along the fourth lower fold line 28, the fifth lower fold line 30 and the sixth lower fold line 31 to bend 90° to the bottom of the buffer bracket blank 42-2 , bend 100-120° to the bottom of the buffer bracket blank 42-2 along the third lower folding line 27; insert the ends of the buffer bracket blank 42-2 on both sides of the third recessed opening 26 into the buffer bracket box respectively In the second cutting line 23 close to the blank 42-2; insert the ends of the buffer support box blank 42-2 located on both sides of the fourth recessed opening 32 into the first cutting line 24 adjacent to the buffer support box blank 42-2 respectively middle.

The use method of folding the buffer box blank into a buffer box, the bottom of the object is placed in the first groove, the two sides of the object are embedded in the third concave opening, and the existence of the buffer sheet can further clamp the object.

After the outer box and the buffer box of the present invention are combined and formed, the shape is a complete briefcase; after opening, the front cover is folded, the product is in sight, and the tongue is inserted into the rear plate, which can play the role of sales display; consumers buy Afterwards, fold back the box cover, insert the tongue into the side hole, and then lift and carry. During the display, the tubular cubic display is used instead of the previous flat display, which saves the display space and expands the scope of the product attention space.

The outer box can integrate the functions of transportation and display. If the corners and corners are deformed or dirty during transportation, the cover is folded outwards during display, and the inner cardboard can be used to cover the damage and dirt on the outer cardboard of the carton.

The buffer box is easy to assemble, and the left and right parts of the contents are tightened through the structural molding, which plays a fixed role and protects the surface of the object from being scratched due to transportation collisions. There are buffer spaces on all six sides of the buffer structure, which can protect the contents during transportation.

The present invention has been exemplarily described above. It should be noted that, without departing from the core of the present invention, any simple deformation, modification, or other equivalent replacements that can be performed by those skilled in the art without any creative effort fall into the scope of the present invention. the scope of protection of the invention.

Claims (9)

1. A box blank of a packaging box with a display function, characterized in that it comprises: an outer box blank (41) and a buffer box blank (42), and the outer box blank (41) is folded to form a rectangular parallelepiped shape The outer box, the buffer box blank (42) is folded and placed in the outer box; the outer box blank (41) comprises: a first side plate (1), a front plate (16), a first side plate (1), a front plate (16), A second side plate (15) and a rear plate (14) are connected to the first side plate (1) or the rear plate (14) for connecting the first side plate (1) and the rear plate (14). ) of the flap (6), so that the first side panel (1), the front panel (16), the second side panel (15) and the rear panel (14) can enclose the side of the outer box; The bottom edges of the first side plate (1), the front plate (16), the second side plate (15) and the rear plate (14) are each connected with a bottom plate (4), and the four bottom plates (4) can be connected to each other. assembling the lock to form the lock bottom of the outer box; A first concave opening (38) is formed at the upper end of the front plate (16), the shape of the first concave opening (38) is a rectangle or an inverted trapezoid, and the bottom edge of the first concave opening (38) is located on the transverse centerline of the front panel (16); a cover panel (9) serving as the top surface of the outer box is connected to the top edge of the rear panel (14). A front side plate (13) is connected to the top edge, and the height of the front side plate (13) is equal to the height of the first concave opening (38), and a front side plate (13) is connected with a Side connecting plates (11), the width of each side connecting plate (11) is slightly larger than the width of the first side plate (1) and the second side plate (15), and the two side connecting plates (11) Each edge away from each other is connected with a locking tongue (12); An upper locking hole (8) is respectively formed on both lateral sides of the rear plate (14), and a lower locking hole (5) is respectively formed on the rear plate (14) below each of the upper locking holes (8). , the locking tongue (12) can be inserted into the upper locking hole (8) or the lower locking hole (5), wherein the top end of the upper locking hole (8) and the top edge of the rear plate (14) and the distance between the bottom end of the lower locking hole (5) and the bottom edge of the rear plate (14) are the same as the bottom edge of the locking tongue (12) and the bottom edge of the front side plate (13). The distance between the extension lines of the sides is the same; A working line having the same shape as the first concave opening (38) and an opposite position is formed on the rear plate (14), the bottom edge of the working line is a connecting fold line (17), and the rest are easy torn dotted lines (7); The buffer box blank (42) is composed of a buffer bottom box blank (42-1) and two buffer bracket blanks (42-2), wherein, The buffer bottom box blank (42-1) is a rectangular cardboard with a width slightly smaller than that of the front plate (16) and is symmetrical up and down. The rectangular cardboard is provided with first lower blanks at intervals along the length direction of the rectangular cardboard. A fold line (18), a second lower fold line (19), a first upper fold line (20), a first upper fold line (20), a second lower fold line (19), and a first lower fold line (18), the first lower fold line (18) The fold line (18) and the second lower fold line (19) are fold lines used for bending below the buffer bottom box blank (42-1), and the first upper fold line (20) is used to bend towards the buffer bottom The folding line bent on the blank box (42-1); the edge of the rectangular cardboard parallel to its width direction is the first width edge (22), and two vertical edges (22) are cut from each of the two first width edges (22). The first cutting line (24) is arranged at intervals on the first width edge (22), and the other end of the first cutting line (24) is located at the first lower fold line ( 18); from each of the second lower folding lines (19), there are 2 second cutting lines (23) arranged at intervals and perpendicular to the second lower folding lines (19), the second cutting lines (23) ) is located between the first lower fold line (18) and the first width edge (22) on the corresponding side; the first cutting line (24) and the second cutting line (23) are each along the rectangle The transverse centerline and longitudinal centerline of the cardboard are symmetrically arranged; The two buffer support box blanks (42-2) have the same structure and are both strip-shaped rectangular cardboards, and a third lower folding line (27) and a fourth lower folding line (28) are sequentially pressed on each of the strip-shaped rectangular cardboards , the fifth lower fold line (30) and the sixth lower fold line (31), the third lower fold line (27), the fourth lower fold line (28), the fifth lower fold line (30) and the sixth lower fold line (31) Both are fold lines used to bend under the strip-shaped rectangular cardboard; The edge of the strip-shaped rectangular cardboard parallel to its width direction is a second width edge (35), and a rectangular third concave opening ( 26), the edges of the opposite sides of the third recessed opening (26) are respectively connected with a buffer sheet (25); a rectangular shape is formed on the second width edge (35) close to the sixth lower folding line (31). A fourth concave opening (32); a special-shaped cutting line (29) is formed by cutting between the fourth lower folding line (28) and the fifth lower folding line (30), and the shape of the special-shaped cutting line (29) is It is the same as the line shape on the cross section of the structure formed after the buffer bottom box blank (42-1) is folded; Wherein, the widths of the third concave opening (26) and the fourth concave opening (32) are respectively the same as the distance between the two first upper folding lines (20); the edge of the rectangular cardboard parallel to its length direction is the first length edge (21), and the distance between the fifth lower fold line (30) and the sixth lower fold line (31) is slightly smaller than the first length edge (21) and the first cutting line (24) distance between. 2. The box blank according to claim 1, characterized in that, a dust-proof insert plate (10) is connected to the bottom edge of each side connecting plate (11). 3. The blank box according to claim 1, characterized in that the length of the buffer sheet (25) is less than the depth of the third recessed opening (26) and is close to the bottom of the third recessed opening (26) . 4. The blank box according to claim 1, characterized in that, the special-shaped cutting line (29) is formed with two second rectangular ridges (34) and two second rectangular ridges (34) located between the two second rectangular ridges (34). The first rectangular protruding strip (33) between them, the first rectangular protruding strip (33) and the two second rectangular protruding strips (34) are engaged with each other to form a plane. 5. The method for folding the outer box blank into a closed state according to any one of claims 1 to 4, wherein the method comprises the following steps: a) Adhere the first side panel (1) and the rear panel (14) through the flaps (6), and assemble and lock the four bottom panels (4), so that the first side panel (1), The front plate (16), the second side plate (15), the rear plate (14) and the four bottom plates (4) form an open outer box; b) Bend the cover plate (9) by 90° along the connecting line between the cover plate (9) and the rear plate (14), so that the cover plate (9) forms the top of the outer box noodle; c) Bend the front side plate (13) along the connecting line between the front side plate (13) and the cover plate (9) toward the bottom surface of the outer box by 90°, and connect the two side connecting plates (11) Bend 90° along the connecting line between the side connecting plate (11) and the front side plate (13), so that the two side connecting plates (11) are in close contact with the corresponding side connecting plates (11) respectively. The first side plate (1) or the second side plate (15); the two locking tongues (12) are bent 90° along the connecting line between the locking tongue (12) and the side connecting plate (11), and the two Each of the locking tongues (12) is inserted into the two upper locking holes (8) respectively. 6. The method for folding the outer box blank into an outer box under the display state according to any one of claims 1 to 4, wherein the method comprises the following steps: 1) Bond the first side plate (1) and the rear plate (14) through the flap (6), and assemble and lock the four bottom plates (4), so that the first side plate (1), The front plate (16), the second side plate (15), the rear plate (14) and the four bottom plates (4) form an open outer box; 2) Disconnect the easy-tear dotted line (7), and bend the rear panel (14) above the connection fold line (17) backwards along the connection fold line (17), so that the rear plate (14) above the connection fold line (17) is located at the connection fold line (17) The upper rear plate (14) is in close contact with the rear plate (14) located below the connecting fold line (17), and the cover plate (9) is connected along the connection between the cover plate (9) and the rear plate (14). The wire is bent so that the cover plate (9) is close to the bottom surface of the outer box; 3) Bend the front side panel (13) at 90° along the connecting line between the front side panel (13) and the cover panel (9), so that the front side panel is in close contact with the front panel (16). ), bend the two side connecting plates (11) at 90° along the connecting line between the side connecting plate (11) and the front side plate (13), so that the two side connecting plates (11) Abut the first side plate (1) or the second side plate (15) on the corresponding side respectively; connect the two locking tongues (12) along the connection between the locking tongue (12) and the side connecting plate (11) The wire is bent at 90°, and the two locking tongues (12) are inserted into the two lower locking holes (5) respectively. 7. The method for folding a buffer box blank into a buffer box according to any one of claims 1, wherein the method comprises the following steps: (1) Place the buffer bracket blanks (42-2) on opposite sides of the buffer bottom box blanks (42-1) respectively and the lower surface of each buffer bracket blank (42-2) faces the buffer bottom The box blank (42-1), so that the first upper folding line (20) is perpendicular to the buffer support box blank (42-2), and the second width edge (35) is parallel to the buffer bottom box blank (42-1) where the flat; (2) Bend 90° to the bottom of the rectangular cardboard along the first lower folding line (18) and the second lower folding line (19) of the rectangular cardboard, and bend it to the upper surface of the rectangular cardboard along the first upper folding line (20). 90°, to obtain a buffer bottom with the same shape as the special-shaped cutting line (29) on the cross section; (3) Set the special-shaped cutting lines (29) of the two buffer support box blanks (42-2) on both ends of the buffer bottom respectively, so that the buffer bottom box blanks (42-1) Bending along the shape of the special-shaped cutting line (29) in the special-shaped cutting line (29); (4) The following operations are performed on the two buffer support box blanks (42-2): along the fourth lower fold line (28), the fifth lower fold line (30) and the sixth lower fold line (31) to all directions The bottom of the buffer support box blank (42-2) is bent by 90°, and is bent by 100 to 120° to the bottom of the buffer support box blank (42-2) along the third lower folding line (27). The ends of the buffer bracket blanks (42-2) on both sides of the third recessed opening (26) are respectively inserted into the second cutting lines (23) close to the buffer bracket blanks (42-2); The ends of the buffer support box blanks (42-2) on both sides of the four concave openings (32) are respectively inserted into the first cutting lines (24) adjacent to the buffer support box blanks (42-2). 8. The method for folding a buffer box blank into a buffer box according to claim 7, wherein in the step (3), when the first lower folding line (18) and the second lower folding line (19) ) after bending 90° to the bottom of the rectangular cardboard and 90° to the top of the rectangular cardboard along the first upper folding line (20), the buffer bottom forms two second grooves (40) which open downwards and are located at the bottom. The opening between the two second grooves (40) faces the first groove (39) upward. 9 . The method for folding a buffer box blank into a buffer box according to claim 8 , wherein the special-shaped cutting line ( 29 ) is formed with two second rectangular protruding strips ( 34 ) and two second rectangular ridges ( 34 ) located in the two second The first rectangular protruding strip (33) between the rectangular protruding strips (34), the first rectangular protruding strip (33) and the two second rectangular protruding strips (34) are engaged with each other to form a plane, when the two buffering When the special-shaped cutting lines (29) of the bracket box blanks (42-2) are respectively sleeved on one end of the buffer bottom, the first rectangular protruding strips (33) are located in the first grooves (39) and are connected with the first grooves (39). The inner wall of the first groove (39) is suitable, and the second rectangular protruding strip (34) is located in the second groove (40) and is compatible with the inner wall of the second groove (40).

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