CN86204493U

CN86204493U - Sack with pleat

Info

Publication number: CN86204493U
Application number: CN198686204493U
Authority: CN
Inventors: 布鲁洛·海德; 克里斯琴·莫泽; 托马斯·兰格; 伯哈德·里兹勒; 格诺特·奥特
Original assignee: Lianjinge
Current assignee: Lianjinge
Priority date: 1986-05-22
Filing date: 1986-06-10
Publication date: 1988-06-15
Also published as: JPS62280028A; AT384995B; ATA136486A; DE3716010A1; CN86104300A; CN1003437B; BR8702637A

Abstract

In order to make a sack with a fold edge and a pleat made in the short time, rigid materials can be adopted. At the corresponding position away from position needing the pleat height (10) at the position of the opening of the sack material (12), the fold edge (1) of the sack material (6) adopts the guide edges positioned on both sides of the sack material to position and clamp two outfolding edges (4), (5); the clamping depth is always equal to the folding depth (11) of the fold edge; two outfolding edges are turned about 90 DEG to a flat surface perpendicular to the surface of the sack material every time, and infolding edges (3) are expanded to a trapezoid; after the fold surface of the trapezoid is folded along the expanded infolding edges, a pleating plate (21) which is folded is pushed between the mutually relative side walls (16), (17), and is connected with an open-mouth sack edge (15) on the longitudinal direction of the sack material in a pleating area.

Description

Sack with pleat

The utility model is about making a kind of Sack with pleat made from leno cellular or fire hose belt pipe with flanging, and fire hose belt pipe is made by woven or non-woven fleece.

Disclosed by patent documentation AT-B256601 in the method that folding rivel on the Bag Material of flanging is arranged, but a kind of in the document have the flat fire hose belt pipe Bag Material of flanging to be made by material that can encapsulate or sealing, its sidewall of alignment carrying that the part of sidewall is wound perpendicular to the Bag Material major axis at the sack place overturns 180 °, after this, the pleat sheet is sticked on the flanging place of opening, and the pleat sheet constitutes the prolongation of rivel.Then, will open part and turn back the origin-location again, simultaneously, the pleat sheet is folded.Last procedure is the sack of band rivel to be sealed, for example stitching.

For making rivel longer, before opening or with Bag Material, open certain degree of depth from vertical cutting inwards that sack is parallel to Bag Material, perhaps cut out the bag sample of lengthening at Bag Material flanging place.First measure requires an additional separately manufacturing procedure, i.e. a kind of blank material of regulation is opened or produced in cutting; Second measure causes out of use short.

Another shortcoming of known method bag is, the part of fire hose belt Bag Material is opened 180 °, and This move needs the long comparatively speaking time.Have high rigidity or intensity if make the material of pocket, folding 180 ° is difficult.Paste the pleat sheet and just require folding 180 ° of pleat sheet under deployed condition, this is folding to be at folding 180 ° for the first time, finishes after promptly opening.

The purpose of this utility model is to avoid these shortcomings and difficulty, and its task is to create a kind of Sack with pleat, even also can at first be finish rivel at short notice folding simply when adopting the rigidity Bag Material, might keep the of short duration cycle like this when producing in batches.Secondly, pleat length can also change, and does not need special bag method of cutting out, also can not cause short.

Task of the present utility model is with following operation semi-finished product solution that combines in the middle of each:

A) as blank be, its part is to be used on the chemical property fire hose belt pipe of filming with the material extruding of the materials similar of fire hose belt pipe at least,

B) always have on the blank by an invagination seamed edge and two flangings that outer folding seamed edge is folded into,

C) blank is a Bag Material that gets off by the cutting from the fire hose belt pipe of the length of bag,

D) be equivalent on the high distance of required pleat at distance Bag Material openend on the blank, have in Bag Material two sides the flanging of Bag Material is located, be about to it and clamp, and be roughly parallel to the guiding seamed edge of bag opening,

E) on the blank two outer folding seamed edges always with the guiding seamed edge clamp be equivalent to flanging a folding deeply, the two outer seamed edges that at every turn overturn about 90 ° to a plane perpendicular to the Bag Material plane, the invagination seamed edge is unfolded and of forming is trapezoidal,

F) a pleat sheet that fold and that be connected with the placket bag edge that is positioned at the pleat district that between the sidewall respect to one another that on the blank trapezoidal fold plane is formed folding up along the invagination seamed edge that launches, pushes at the Bag Material longitudinal extension,

G) will there be the bag opening of rivel to seal and the rivel bag finally made.

Folding seamed edge is creatively only upwards folded 90 ° at every turn, promptly upwards open 90 °, with respect to prior art, the operation of making this folding rivel has been divided into two folding processes of finishing simultaneously, the desired angular movement of this folding process only is half of prior art, like this, particularly when producing Sack with pleat in batches, only with short cycle time.Another advantage is, has used ready-made in advance pleat sheet, has folded in the time of promptly on being placed in bag, no longer needs to fold after fixing.Produced advantage thus, particularly the pleat sheet cements the pleat sheet because no longer need must wait before folding pleat sheet as prior art requires when pasting.When pasting the pleat sheet, the pleat sheet that has folded is pushed, brought another advantage, promptly make glue be evenly distributed.

If make rivel have long especially pleat, the distance from unlimited sack to the location of Bag Material flanging is more preferably greater than the folded depth of twice flanging.

For the obstruction of the air that the time do not entered in pack, making perforation and meet purpose in the part district of filming at least, perforation is preferably only in the flanging scope or only in the rivel peripheral region.

If on the leno cellular length direction, in the scope on flanging expansion plane, do not push and film, then might not need bore a hole.

By bag of the present utility model, characterize by making up following feature:

A) bag wherein has at least the part extruding to film by the leno cellular with flanging or have the woven of flanging or fire hose belt pipe that non-woven fleece is made is made,

B) upper side that a rivel, rivel be symmetrical in bag and the mid-plane between the downside are arranged in that an end of bag is folding, and have blind end that is substantially perpendicular to bag, by the rivel opening that the Bag Material limit constitutes, this opening is equipped with a rivel sheet,

C) flanging is stopping from the high distance of blind end rivel, from the rivel opening part, toward each other and a bag face that encases rivel not only extend to folding seamed edge smoothly, and extend to the sack of sealing.

If the rivel height is greater than the twice of the folded depth of flanging, it is long that this rivel just has big rivel, and this is advantageous to loading certain article.

At least bag film the district partly have the perforation be appropriate, according to first embodiment, only have in the flanging district perforation be favourable, according to the embodiment of second practicality, only in the rivel district, perforation is arranged.

The feature of another particularly advantageous embodiment is that the planar section that flanging launches on the bag length direction does not have class coating material.

Below, according to accompanying drawing the utility model being elaborated, Fig. 1 to Fig. 5 is semi-finished product of representing each road in the folding process of rivel with stereogram in detail.

Film with chemical property and the extruding of leno cellular materials similar in the outside of the leno cellular of one endless, leno cellular has the flanging 1 that is used in the common structural shape that unillustrated hemmer is folded on the figure, 2, they always have an invagination seamed edge 3 and two outer folding seamed edges 4,5.Cut out next section material 6 from these semi-finished product, it is long that its length 7 is equivalent to a bag, and seal 8 end at the bottom of will being called bag, for example with U-shaped band 9 involutions.

As shown in Figure 1, in a flanging scope of Bag Material 6, in the place that is equivalent to the distance of required rivel high 10 from Bag Material 6 openings 12, be used in the guiding seamed edge 13 of Bag Material 6 two sides, 14 clamp Bag Material, and required rivel height is greater than the twice of the folding of flanging 1,2 dark 11 in the described embodiment of figure, guiding

seamed edge

13,14 is parallel to opening 12 approximately.Open two outer folding

seamed edges

4,5 then, invagination seamed edge 3 is unfolded simultaneously.Before about 90 ° of folding

seamed edge

4,5 upset, by the support of an arbitrary shape, clamp two outer seamed edges with the guiding seamed edge earlier outside each, it is dark 11 that the folded degree of depth is equivalent to the folding of a flanging 1, will go up outer folding seamed edge 5 then and upwards curve, and rolls over seamed edge 4 outside down to curve downwards.

As shown in Figure 2, formed thus as among Fig. 2 with hacures represent trapezoidal, trapezoidal base be the bag opening edge 15.Trapezoidal extension plane be one with the bag plane promptly with the vertical plane 18 of undeformed sidewall 16,17.In order to make the folding seamed edge open or outwards open easily, the suction that the oriented direction that is separated is moved on the

sidewall

16,17 chews 16 ', 17 '.

Subsequently with trapezoidal fold plane along the invagination seamed edge 3 that is unfolded again to folding up, promptly change 90 °, come back to bag place, a plane (see figure 3) until the crushed element of the

sidewall

16,17 of bag.

Be ready to pleat sheet 21 at this moment, will be folding, and the pleat sheet 21(Fig. 4 that has been coated with glue 20 at side 19 places a) pushes between upper side wall 16 and the lower wall 17 (Fig. 4), directly shift prolongation place that the folding rib 22 that makes the pleat sheet is positioned at the folding seamed edge 3 in trapezoidal centre onto, the limit wall 19 that scribbles glue 20 simultaneously covers present bag opening edge 15 along this part of Bag Material 6 longitudinal extensions, and stick together with it, in order to push pleat sheet 21 easily, make

limit wall

16,17 suitable separating slightly, for example chew 16 with inhaling once more ", 17 ".

Seal sack 12 at last, U-shaped band 9 involution (see figure 5)s that available glue, sealing are lived or can be encased sack as said usefulness among the embodiment and make finished product.

In described embodiment, push on the whole surface of bag and to film.For air can be released when packing, bag will have perforation, and the spacing of the thickness of pecker and perforation is selected according to the granularity of putting into article.Also can not bore a hole, if as not filming at flanging 1,2 place, just need not bore a hole in a part of zone of bag for example, it is excessive that its advantage is to avoid being coated with when filming.Leno cellular after the plastic sheeting of handy rolling launches as the material of bag.Also can be with the fire hose belt pipe of making by woven or non-woven fleece.

As shown in Figure 3, pleat long 23 depends on that pleat is high by 10, and promptly the distance from sack 12 to guiding

seamed edge

13,14 is big more, and pleat stretches in the bag dark more.So just may see that to load sack relatively large, but can guarantee that still the sack that will load article seals.

Claims

1, a kind ofly make the Sack with pleat that fire hose belt pipe is made with flanging (1,2) by leno cellular or by woven or individual layer non-woven fleece, its assemblage characteristic be by following in the middle of each semi-finished product make:

B) flanging (1,2) that always is folded into by an invagination seamed edge (3) and two outer folding seamed edges (4,5) is arranged on the blank,

C) blank is the Bag Material (6) that length (7) cutting from the fire hose belt pipe by bag is got off,

D) it is last to be equivalent to the distance of required pleat height (10) apart from Bag Material (6) openend (12) on the blank, in Bag Material (6) two sides, flanging (1) location with Bag Material (6) is arranged, and is about to its clamping, and greatly to the guiding seamed edge (13,14) that is parallel to a bag opening (12),

E) two outer folding seamed edges (4,5) are always clamped a folding dark (11) that is equivalent to flanging (1) with the guiding seamed edge on the blank, upset two outer folding seamed edges (4,5) about 90 ° to a plane (18) perpendicular to Bag Material (6) plane, invagination seamed edge (3) is unfolded, and of formation is trapezoidal

F) sidewall respect to one another (16 that on blank, trapezoidal fold plane is formed folding up along the invagination seamed edge (3) that launches, 17) a pleat sheet (21) that fold and that be connected with the placket bag edge that is positioned at the pleat district (15) that pushes between at the Bag Material longitudinal extension

G) will have the bag opening of rivel seal and the pleat finally made should between bag.

By the Sack with pleat of claim 1, it is characterized in that 2, the flanging (1) of Bag Material (6) is fixed in apart from bag opening part (12) to be located greater than the distance (10) of the folded depth (11) of twice flanging (1).

3, by claim 1 or 2 Sack with pleat, it is characterized in that having at least the part district of filming that perforation is arranged.

4, by the Sack with pleat of claim 1 or 2, it is characterized in that only perforation being arranged in the flanging district.

5, by the Sack with pleat of claim 3, it is characterized in that only perforation being arranged in the flanging district.

6, by the Sack with pleat of claim 1 or 2, it is characterized in that only perforation being arranged in the rivel peripheral region.

7, by the Sack with pleat of claim 3, it is characterized in that only perforation being arranged in the rivel peripheral region.

By the Sack with pleat of claim 1, it is characterized in that 8, on leno cellular was vertical, the planar section that flanging launches does not push filmed.