CN202295632U

CN202295632U - Vertical packaging bag

Info

Publication number: CN202295632U
Application number: CN201120425889XU
Authority: CN
Inventors: 林伟国; 林伟贤
Original assignee: Guangdong Zhongxing Plastic & Paper Printing Co Ltd
Current assignee: Guangdong Zhongxing Plastic & Paper Printing Co Ltd
Priority date: 2011-11-01
Filing date: 2011-11-01
Publication date: 2012-07-04
Anticipated expiration: 2021-11-01

Abstract

The utility model discloses a vertical packaging bag. The vertical packaging bag comprises a front side wall, a rear side wall, a left side wall, a right side wall and a bag bottom; the bag bottom comprises a bottom surface main body part and a back cover bonding part; four side walls are extended downward by equal length and then are folded so as to form the bottom surface main body part, and an extending part is a first extending part; the four faces of the first extending part are extended downward by equal length and then are folded and bonded so as to form the back cover bonding part, and an extending part is a second extending part; in the bottom surface main body part, the front wall of the first extending part is folded backward to be in the horizontal direction, the rear wall of the first extending part is folded upward to be in the horizontal direction, the right wall of the first extending part is folded along the horizontal crease line and two crease lines which form an angle of 45 degrees to be in the horizontal direction, and the left wall of the first extending part is folded along a horizontal crease line and two crease lines which form an angle of 45 degrees to be in the horizontal direction; and the whole back cover bonding part is folded to be in the horizontal direction and is bonded on the bottom surface main body part. The making, cutting and folding processes of the vertical packaging bag are easy, the bag bottom is firm, and the vertical packaging bag has a simple and ingenious structure.

Description

The vertical packaging bag

Technical field

The utility model belongs to the technical field of packaging bag, is specifically related to a kind of vertical packaging bag with four sides sidewall.

Background technology

The vertical packaging bag has all around the four sides sidewall and the bag end, and whole bag can stably be stood upright during the splendid attire object.The bag end of existing vertical packaging bag makes, cuts out, folding process is complicated, and bag end is insecure, can't splendid attire than heavy articles.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned shortcoming and provides and a kind of vertical packaging bag, and its bag is made at an end, cut out, folding process is simple, and bag end is firm, simple and ingenious structure.

Its purpose can realize by following scheme: this vertical packaging bag comprises front side wall, rear wall, left side wall, right side wall and the bag end; The width of front side wall equals the width of rear wall, and the width of left side wall equals the width of right side wall, and its principal feature is; The bag end, be divided into bottom surface main part and back cover bonding part; The bottom surface main part is by the downward isometric extension of four sides sidewall and folding and form, and this extending part is first extension, and the downward development length of first extension equals the half the of front side wall width; The back cover bonding part is formed by the downward more isometric extension in the four sides of first extension and folded, glued, and this extending part is second extension, and the downward development length of second extension is half the less than the front side wall width; In the main part of bottom surface; The antetheca of first extension folds back becomes horizontal direction; The rear wall of first extension is folded into horizontal direction forward; The right wall of first extension is folded into horizontal direction along horizontal creases line AB and two 45 ° of crease line BC, AC; Wherein A point, B point are respectively two of right wall of first extension and go up angle points, and C point is the intersection point that passes through two 45 ° of crease lines that A point, B order respectively, and the left wall of first extension is folded into horizontal direction along horizontal creases line MN and two 45 ° of crease line MP, NP; Wherein M point, N point are respectively two of left wall of first extension and go up angle points, and P point is the intersection point that passes through two 45 ° of crease lines that M point, N order respectively; In the back cover bonding part; Second extension left side wall preceding half section bonding with the second extension antetheca left end; The second half section and the second extension rear wall left end of second extension left side wall are bonding; The right wall of second extension preceding half section bonding with the second extension antetheca right-hand member, the second half section and the second extension rear wall right-hand member of the right wall of second extension are bonding, the interlude of the interlude of the second extension antetheca and the second extension rear wall is bonding; Whole back cover bonding part after bonding is folded to horizontal direction, and sticks on the main part of bottom surface.

Be preferably, whole back cover bonding part is sticked on the main part of bottom surface by gummed paper.

The utlity model has following advantage and effect:

1, the bag end of the utility model, formed to extending below and folding by the four sides sidewall; And the four sides sidewall is isometric to the length that extends below, thereby parison is regular, and cutting is convenient; Through ingenious folding after, at the bottom of bonding can form bag, a bag end makes, cuts out, folding process is simple.

2, the back cover bonding part of the utility model sticks on the main part of bottom surface after bonding again; Because the process many levels is folding and bonding, increased the tensile property and the level at the bag end, disperseed the stressed of each bond site; Solid and reliable at the bottom of making bag, bag end holding capacity is good.

Description of drawings

Fig. 1 is the three-dimensional shape scheme drawing of the utility model specific embodiment when first extension, second extension fold back cover.

Fig. 2 is the three-dimensional shape scheme drawing that form shown in Figure 1 arrives from another viewpoint.

Fig. 3 is the schematic top plan view of specific embodiment shown in Figure 1 after folding completion the at the bottom of the bag.

Fig. 4 is a back cover bonding part folded, glued method scheme drawing for the first time.

Fig. 5 is the bag state schematic side view of back cover bonding part when not carrying out for the first time folded, glued for the second time after the folded, glued as yet.

Fig. 6 is the structural representation of looking up of state shown in Figure 5.

Fig. 7 is that scheme drawing is looked on the bag state left side after the back cover bonding part folded, glued second time.

Fig. 8 is the perspective view of state shown in Figure 7.

The specific embodiment

Fig. 1, Fig. 2, Fig. 7, shown in Figure 8, this vertical packaging bag comprise front side wall 11, rear wall 13, left side wall 12, right side wall 14 and the bag end, and the width of front side wall 11 equals the width of rear wall 13, and the width of left side wall 12 equals the width of right side wall 14.

Fig. 1, Fig. 2, Fig. 5, Fig. 7, shown in Figure 8; The bag end, be divided into bottom surface main part 2 and back cover bonding part 3; Bottom surface main part 2 is by 11,12,13, the 14 downward isometric extensions of four sides sidewall; And folding and form, the downward development length of bottom surface main part equals the half the of front side wall width, in Fig. 1 Fig. 2, is presented as AE=BF=MR=NS=AB/2=MN/2; This extending part is that the four sides of first extension, 2, the first extensions 2 is respectively antetheca 21, left wall 22 (being zone shown in the MRSNM line among Fig. 2), rear wall 23, right wall 24 (being zone shown in the ABFEA line among Fig. 1); Back cover bonding part 3 is by four

sides wall

21,22,23, the 24 downward more isometric extensions of first extension and folded, glued and form; This extending part is second extension 3; The downward development length of second extension 3 is half the less than the front side wall width; In Fig. 1 Fig. 2, be presented as EG=FH=RO=SW AB/2, the four sides of second extension 3 is respectively antetheca 31, Zuo Bi, rear wall 33, You Bi; Wherein left wall is zone (comprising preceding half section 321 and second half section 322) shown in the ROWSR line among Fig. 2, and right wall is zone (comprising preceding half section 341 and second half section 342) shown in the EGHFE line among Fig. 1.

Fig. 1, Fig. 2, Fig. 3, Fig. 5, shown in Figure 6; In bottom surface main part 2; The antetheca 21 of first extension folds back and becomes horizontal direction; The rear wall 23 of first extension is folded into horizontal direction forward, and the right wall 24 of first extension is folded into horizontal direction along horizontal creases line AB and two 45 ° of crease line BC, AC, and wherein A point, B point are respectively two last angle points of the right wall of first extension; The C point is the intersection point of two 45 ° of crease lines of ordering through A point, B respectively; The left wall 22 of first extension is folded into horizontal direction along horizontal creases line MN and two 45 ° of crease line MP, NP, and wherein M point, N point are respectively two of left wall of first extension and go up angle points, and P point is the intersection point that passes through two 45 ° of crease lines that M point, N order respectively; The plan structure of bottom surface, folding back main part 2 is as shown in Figure 3, and it is as shown in Figure 6 to look up structure.

Shown in Figure 4, in the back cover bonding part, preceding half section 321 and the second extension antetheca, 31 left ends of second extension left side wall are bonding; The second half section 322 and the second extension rear wall, 33 left ends of second extension left side wall are bonding; The right wall of second extension preceding half section 341 bonding with the second extension antetheca, 31 right-hand members, the second half section 342 and the second extension rear wall, 33 right-hand members of second extension right side wall are bonding, the interlude of the interlude of the second extension antetheca 31 and the second extension rear wall 33 is bonding; The folded, glued first time that above-mentioned folded, glued process is the back cover bonding part; After time folded, glued is accomplished for the first time, the intermediateness of bag such as Fig. 5, shown in Figure 6, then; Whole back cover bonding part 3 is folded into horizontal direction (being that the back cover bonding part is for the second time bonding folding); And utilize gummed paper 4 to stick on the main part of bottom surface, bonding folding form such as Fig. 7, shown in Figure 8 constitute the firm smooth vertical packaging bag in the bag end for the second time.

Claims

1. vertical packaging bag; Comprise front side wall, rear wall, left side wall, right side wall and the bag end, the width of front side wall equals the width of rear wall, and the width of left side wall equals the width of right side wall; It is characterized in that: the bag end, be divided into bottom surface main part and back cover bonding part; The bottom surface main part is by the downward isometric extension of four sides sidewall and folding and form, and this extending part is first extension, and the downward development length of first extension equals the half the of front side wall width; The back cover bonding part is formed by the downward more isometric extension in the four sides of first extension and folded, glued, and this extending part is second extension, and the downward development length of second extension is half the less than the front side wall width; In the main part of bottom surface; The antetheca of first extension folds back becomes horizontal direction; The rear wall of first extension is folded into horizontal direction forward; The right wall of first extension is folded into horizontal direction along horizontal creases line AB and two 45 ° of crease line BC, AC; Wherein A point, B point are respectively two of right wall of first extension and go up angle points, and C point is the intersection point that passes through two 45 ° of crease lines that A point, B order respectively, and the left wall of first extension is folded into horizontal direction along horizontal creases line MN and two 45 ° of crease line MP, NP; Wherein M point, N point are respectively two of left wall of first extension and go up angle points, and P point is the intersection point that passes through two 45 ° of crease lines that M point, N order respectively; In the back cover bonding part; Second extension left side wall preceding half section bonding with the second extension antetheca left end; The second half section and the second extension rear wall left end of second extension left side wall are bonding; The right wall of second extension preceding half section bonding with the second extension antetheca right-hand member, the second half section and the second extension rear wall right-hand member of the right wall of second extension are bonding, the interlude of the interlude of the second extension antetheca and the second extension rear wall is bonding; Whole back cover bonding part after bonding is folded to horizontal direction, and sticks on the main part of bottom surface.

2. vertical packaging bag according to claim 1 is characterized in that: whole back cover bonding part is sticked on the main part of bottom surface by gummed paper.