CN1073917A - Improved bulk container - Google Patents

Abstract

The present invention has disclosed the method that one or more leno cellular 62 of a kind of usefulness is made a soft bulk container.One aspect of the present invention relates to provides two relative reinforcement districts 63,64 in fabric, on the container after finishing, this two reinforcements district constitutes relative sidewall.Another aspect of the present invention relates to provides a water repellant basically container cap, and it is to utilize the antetheca of container and rear wall 65,66 tops to make.

Description

Improved bulk container

The present invention relates to be used for to store soft bulk container with transport particles shape, Powdered and so on material.

This class container generally is the form of big bag or bag, need be used for loading and transporting half ton, the goods more than a ton or a ton usually, and their safety factor is all very big, generally all substantially exceeds their rated load.This class container is generally by knitting, and particularly polypropylene woven thing or other artificial material are made.

Typically, so a kind of container comprises a bottom, the agent structure of upwardly extending antetheca, rear wall and sidewall and one or more extend upward and the drop handle that forms from sidewall from the bottom.

Such soft bulk container, most of basically load is born by bottom, drop handle, the sidewall that particularly linked by drop handle and bottom.The present invention tries hard to improve the intensity of this container, particularly improves the intensity that these mainly carry the position, and tries hard to maximally utilise the material at zero load position by way of parenthesis to form an osed top top cover.

First aspect of the present invention provides a kind of method of making soft bulk container, and this container comprises a bottom, the agent structure that upwardly extending antetheca, rear wall and sidewall form from the bottom; The method comprises provides a leno cellular, and at least two relative reinforcement districts are provided on above-mentioned tubular fabric, makes above-mentioned reinforcement district form two relative sidewalls of container when making container at least.Though fabric is leno cellular preferably, but it also can make cylindrical shape by a dorsal suture with a planar materials, when for example adopting the gluing or welding process of heat seal or other to manufacture container with the cated material in two sides, this alternative plan is very useful.

The base of agent structure can be connected on the independently bottom similar to the strength characteristics of strengthening distinguishing, (embodiment with independent bottom will be called " sewing up the formula bottom " hereinafter), perhaps, the lower area of strengthening the district can form the part of bottom, (this embodiment hereinafter will be called " intersection stitching formula bottom ").The top of strengthening the district can combine (can add cover if desired) to form a drop handle, and perhaps, they can form upper channel or ring.

Usually, this container is to be made by the cylindrical shape knitting with the lower warp thread district of two relative high strength warp thread reinforcement districts and the intensity between above-mentioned two reinforcement districts.

Preferably the intensity of high strength warp thread is the twice of the intensity of low-intensity warp thread.Usually, be common intensity or even lower than the low-intensity warp thread.

Additional strength can form in several ways in strong warp thread zone, for example: the higher spy (Denier unit) or the belt at dawn (Denier unit), dual or " braces ", crammed band or add reinforced wire again or substitute with reinforced wire beyond belt.

The embodiment of " sew up formula bottom " is connected on the lower edge of agent structure by the edge of bottom independently to make, (" connection " speech is meant here: covering, stitching, gluing, heat seal or other similar coupling method), independently bottom wherein comprises a leno cellular or plane knitting thing bottom.In order to help that the bottom is connected on the agent structure, color band is attached to or weaves the lower edge of the boundary between into agent structure is strengthened or do not strengthen distinguishing, thereby form the wall of a container angle.

The embodiment of " intersection stitching formula bottom " makes by open second group of upwardly extending slit or otch from the fabric base.The less warp base plate of intensity of fabric bottom is folded up earlier to form an internal layer on the bottom.Then two bases of strengthening the district are lumped together and are tied to form one bonding crack in the bottom of container.Under the situation of " intersect stitching formula bottom ", the lower edge of leno cellular, if necessary, can be in having than the zone of low-intensity warp heat seal, Di Bu internal layer just forms one whole like this.This is particularly suitable when adopting coating material and needing favorable waterproof property.

If necessary, can be sutured in light intensity warp zone or constitute light intensity warp zone part, be used to test cheap base plate that the quality that is exposed to ultraviolet radiation and causes descends, that disclosed as the applicant's the British patent 9118381.4 of awaiting the reply jointly.

Second aspect of the present invention provides the manufacture method of soft bulk container, this container comprises a bottom, the upwardly extending antetheca from the bottom, the agent structure of rear wall and sidewall, manufacture method may further comprise the steps: a kind of leno cellular is provided, on above-mentioned knitting, open four otch that extend at least downwards from the upper end-face edge of fabric, thereby between above-mentioned otch, form four fabrics, they become left side wall respectively, right side wall, the extendible portion that makes progress of antetheca and rear wall, and with the extendible portion of each above-mentioned antetheca and rear wall folding be bound up and be attached at least one adjacent separately side wall extension divide.

Antetheca and rear wall extendible portion amounted to mutually and be bound up and all be connected to separately on two adjacent walls to constitute a container, seal of vessel or closed fully, only stay next required otch or the outlet that is used for going into container with top loading, like this, just can farthest avoid climatic influences.

Preferred embodiment of the present invention is those examples that combine the feature of two aspects of the present invention, be that container of the present invention has antetheca and the rear wall of the sidewall of reinforcement than the low-intensity warp thread, also having basically can water repellant top, and it is that the part sidewall folding mutually and that be bound up in addition also respectively with container that extends upward than low-intensity warp thread part is linked.

Can constitute a charging door and form a charging perforate by lumping together, perhaps change a kind of method than the free top in low-intensity warp thread zone, can be with these edges mutually folding or be bound up to form single lid or double-canopy.Under single lid or double-canopy situation, at the slit that covers out a charging.If used an outlet or kindred organization on the bottom, then the top can seal fully, and when filling with substance can turn container by the bottom around and feed.When adopting coated fabric to make bag or needing bigger anti-rainwater top, this method of the present invention is special actv..

Typically, the container that one or two aspect according to the present invention is made, the lining that can have a water-impervious can be closed with its upper end simply after the charging, folds into the inside of container then.Usually, these linings are ampuliforms, that is, the epimere of lining is much narrower than hypomere, and it is to take in a square or the rectangular liners each side heat seal of its neck and shoulder regions and excise unnecessary lining.Generally, the part of cutting away abandons, but according to the present invention, in the unnecessary lining part of the both sides in neck/shoulder zone only partly from main lining excision and can stitch into charging door so that lining is held in place, perhaps, under single/double-canopy situation, in the process at the top that makes container, redundance can be launched and link to each other so that lining is located and maintenance with roof sheet, and the part watertight cover that can be used as container at least.

In order to understand the present invention better, below in conjunction with accompanying drawing the embodiment that usefulness only is described as an example according to container of the present invention is described, wherein:

Fig. 1 represents to be used to make the cylindrical shape knitting according to the embodiment of " sewing up the formula bottom " of container of the present invention;

Figure 1A (ⅰ) represents monolithic, the independently bottom of form of fabric;

The independently bottom of Figure 1A (ⅱ) expression tubular fabric form;

Figure 1B represents completed container with " sewing up the formula bottom ";

Fig. 1 C is the view of " sewing up the formula bottom " container shown in Figure 1B;

Fig. 2 represents to be used for making the cylindrical shape knitting of " intersection stitching formula bottom " embodiment;

" intersect stitching formula bottom " container that Fig. 2 A represents to have completed;

" the intersection stitching formula bottom " of the container shown in Fig. 3 presentation graphs 2A;

Fig. 4 represents different step folding and stitching " intersection stitching formula bottom " container;

Fig. 5 represents different step folding and stitching " double-canopy ";

Fig. 6 to 9(c) different designs of expression top cover and charging hole;

Fig. 9 (d) expression utilizes the redundance of ampuliform lining to sew up the opening of the container of opening;

Fig. 9 (e) and 9(f) expression utilize the ampuliform lining redundance with formation lining maintenance/watertight cover in the process of making single lid/double-canopy container;

Figure 10 (ⅰ) represents single handle, double-canopy type container, and Figure 10 (ⅱ) represents single handle openings type container;

Among Figure 11 (ⅰ) two handle openings types, the step of Figure 11 (ⅱ) and Figure 11 (ⅳ) expression formation handle and opening, Figure 11 (ⅲ) and Figure 11 (ⅴ) expression form the step of bottom material mouth;

Figure 12 represent according to many places of the present invention can promote the bag basic design;

The modification of the bag that Figure 13 to 17 expression many places as shown in figure 12 can promote;

Figure 18 and 18(a) two kinds of different bottom production programs of expression, they can be used for any one vessel shown in Figure 12-17;

Figure 19 to 21 expression is according to the method for making of a square bag of the present invention; And

The modification of Figure 22 to 24 expression square bag shown in Figure 19 to 21.

Now see also Fig. 1.The embodiment according to " sewing up the formula bottom " of the present invention container that total usefulness 60 marks in Figure 1B makes with a cylindrical section shape fabric 62.The width of leno cellular 62 is W, in braiding, there are two with higher-strength and/or than the reinforcement district 63,64 of the warp of rigidity, they have accounted for half of the tubular fabric gross area, strengthen the district for these two and are separated by the differential gap 65,66 of the lower warp of two intensity.Be formed with one group of four otch (67,68,69,70) on fabric, they extend to borderline some J, K between higher-strength warp district and more low intensive warp district, M, L from the apical margin of fabric.On the lower edge of fabric, inweaved color band at an A, B, C, D place, they are the positions at the place, angle of container.Usefulness shown in Figure 1A (ⅰ) flat fabric or be sewn on the lower edge of the fabric 62 between the color band, as shown in Figure 1B and 1C with the independently bottom that the tubular fabric shown in Figure 1A (ⅱ) is made.Importantly, the intensity of base material, go up in all fields, should be few with the intensity difference of those parts of bottom seam fabric 62 thereon, in the bottom is under the situation of planar materials, the bottom should have the identical or similar intensity with the reinforcement district of fabric 62, should have such intensity in the zones of connection at those mutually with reinforcement district 63,64 at least.The cylinder bottom is then different, and it only needs general intensity, because double-decker has increased the intensity of bottom.As shown in Fig. 1 C, the bottom sews up along cylinder end AD and BC upset flanging.

See also Fig. 2 to 4.The embodiment according to " intersection stitching formula bottom " of the present invention container that marks with 60A total in Fig. 2 A makes by being similar to the tubular fabric of monolithic shown in Fig. 1 62.On fabric, be formed with two groups of four otch, first group of otch 67,68,69,70 extends from borderline some J, K, M, the L of apical margin between higher-strength warp thread and more low intensive warp thread district of fabric, and second group of otch 71,72,73,74 extends from some N, P, R, the Q of base between border same as described above of fabric.

The root edge in the warp thread zone 65,66 that two intensity is lower folding up like that and sewing up with A type flanging shown in Fig. 3 and Fig. 4 (ⅱ) (sees that Fig. 4 (ⅳ) is to form the internal layer of bottom liner.Then, the root edge in higher-strength warp thread district 63 is sewn onto on the root edge in another higher-strength warp thread district 64 between a B and the C with pie graph 3 and 4(ⅲ with Type B flanging (seeing Fig. 4 (ⅴ)) between an A, D) shown in main bottom outside support seam AB-DC.If necessary, can be as shown in Figure 1 together than the root edge in low- intensity district 65,66 at cutting stage heat seal, can prevent that to constitute one the Double bottom portion that stabs out and bottom side opening can unite by a seam to constitute the leak free Double bottom portion of the no sharp keen fabric edge in an inside.

In " sew up formula bottom " and " intersect stitching formula bottom " two kinds of embodiment, two central authorities that are positioned at the fabric top lump together with formation as Fig. 6 to 9(c than low-intensity warp thread district) shown in multiple heteroid top cover.The apical margin in higher-strength warp thread district 63 to form a drop handle 75 on container, if necessary, can be loaded onto sleeve pipe on this drop handle on the apical margin that is stitched into the higher-strength warp thread district 64 between a F and the G between an E and H.

Fig. 5 (ⅰ) is to 5(ⅴ) show the double-canopy of a kind of cap structure of form-sew up fully in more detail.At first, than low-intensity warp thread district 65,66 be folded down and with as Fig. 5 (ⅱ) and 5(ⅲ) shown in like that with flanging M-J, L-K, J-K, M-L sews up.Then, shown in Fig. 5 (ⅳ), like that higher-strength warp thread district 63,64 is lumped together, and with the top stitch in these districts together and tighten to constitute the handle 75 as Fig. 5 (ⅴ).

Like this; at Fig. 2 and 5(ⅴ) shown in completed container in; higher-strength warp thread district 63,64 has constituted " a lifting hanging basket " that includes outer bottom, sidewall and drop handle; then constitute one second hoop than low-intensity warp thread district, it provides the top protection and provides bottom liner in the bottom as the second layer.

Now see also Fig. 6 to 9(c).There is shown all structures of utilizing two the top protection of container is provided than low-intensity district top edge at these.

Referring to Fig. 6.Each notching edge than low-intensity warp thread district 65 and 66 is sewn to or is heat sealed on the respective side walls of container, and by will stitching until a F1 by adjacent unstitched remainder with the top edge in each zone 65, some E, H then with an E ₁Corresponding, to form an opening.The bundle that is used to fasten opening is tied knots and 80 is worn thereon as shown in Figure 6.Cap structure shown in Fig. 6 is called " sewing up the formula opening fully ", structure shown in Fig. 7 is constituting with the similar mode of Fig. 6, but it is called " part is sewed up the formula opening ", that is to say, only the edge of opening is sewed up or heat seal, limit K-L and J-M keep opening.

Single lid of partly sewing up has been shown among Fig. 8, wherein than the edge E-F in low-intensity warp thread district 65,66 and H-G lumps together and between an E1, F1 heat seal or sew up with closed lid, lining is sewed up on potted line by fabric sealing and both.Be provided with the otch 82 of a charging on the top cover in Fig. 8.

Fig. 8 (a) shows a kind of fairly simple double-canopy, and wherein 65,66 of two upper zone are overlapping simply and the charging otch 83 of alignment arranged on each layer.This lid can be with stitching, gluing, " Velcro (velcro) " before and after charging, and strapping or similar method are fixed.

Fig. 9 to Fig. 9 (c) has expressed sew up fully double-canopy, and in this structure, two charging otch 84,85 if necessary, can align and play the self closing effect with after finishing in charging. Upper zone 65,66 is overlapping as Fig. 8 (a), and internal layer is sewn on the side wall construction along edge M-L and J-K, and upper strata (skin) is sewn on the side wall construction along edge M-J and J-K.The above-mentioned method that top cover is sewn on the side wall construction can allow to produce deflection in the container tension.

Fig. 9 (b) and 9(c) other top cover scheme is shown.The inside and outside two-layer while is along appointing dual-side (for example side J-M and the K-L shown in Fig. 9 (b)) or being sewn on the side wall construction along all four sides shown in Fig. 9 (c).

Now see also Fig. 9 (d) and 9(e).Wherein container has the impervious lining 150 of an ampuliform, and the redundance of each side of neck/shoulder that utilizes lining is to improve the performance of open containers or two/single cover gab container.At Fig. 9 (d) with 9(e), container has the impervious lining 150 of a lid shape, and the redundance that utilizes each side of liner neck/shoulder is to improve the performance of open containers or two/single lid container.Among Fig. 9 (d), the X-X line of lining on each side of neck cut, and the upper limb that will be decorated with hatched area sews up opening so that lining is on the throne at the container internal fixation.In Fig. 9 (e), lining is cut along X-X line on each side of liner and Y-Y line, and shaded area is opened to provide just like the watertight cover shown in Fig. 9 (f) after double-canopy charging otch is pulled out.

Now see also Figure 10.In order to compare, there is shown the double-canopy container 160 of Figure 10 (ⅰ) and the open containers 162 of Figure 10 (ⅱ), the both has a single drop handle or handle 160a, 162a.Under each situation, all can have a printing zone 160b and a 162b than low-intensity warp district.

Now see also Figure 11 (ⅰ) to 11(ⅴ).There is shown and have two and be arranged on the handle 164a of each side of opening and two handle openings containers of 164b.Handle forms by strengthening the district, and strengthen the district and also constitute main bottom 164d, the latter, i.e. ' bottom main ' can be seamed into a kerf 164f to hold by than the outlet 164e of the curved one-tenth of low-intensity warp thread and allow it to stretch out.Outlet also can use rope 164g to fasten and/or fill in bottom.

Now see also Figure 12.There is shown a modification of Figure 1B that total usefulness 90 marks or container shown in Figure 2.It also be use with Fig. 1 and 2 in similar reinforcement leno cellular 91 make, but also comprise with the accessory channel of reinforcement material system or encircle the top of 92,93 and one charging opening 94 or fluting.Such container is called " promote " bag more, and it allows the container load of low-level (height-limited system), and can be reinforced on most of 4-rings or 1-ring charging (feeding) equipment.This design should adapt to the requirement of United Nations's dangerous freight, and it has the peak use rate of cloth.Make very simply, each bag on average only stitches nine lines.Wired makes and can carry out on uniform machinery.From the reinforced process of central opening/otch, drop handle 95 can be pushed open.This design comprises long-distance moving failing applicable to multiple different application scenario, promotes to operate in the long-distance transport, and the thing followed may be diversified operation after the pallet loading, for example hoisting crane, crane, crawler-tread or the like.

In Figure 13, passage or encircle 96,97 and be arranged on the bottom of container, and among Figure 14, passage or encircle 92,93 and be provided with as shown in Figure 12, but container comprises that one has the double thickness lid of charging otch 98,99.

Figure 15 shows a modification, does not wherein have drop handle, and the substitute is provides four square rings 100,101,102,103, and accessory channel (ring) 104.Figure 16 shows a container with inner passage (ring) 105,106, promptly 105,106 is arranged on the enhancing ring inboard; Shown in Figure 17 is one not have the modification of drop handle, and it has only passage (ring) 107,108.Figure 18 show a kind of similar to Fig. 3, be used for flat bottoms intersect the another kind of scheme of sewing up, Figure 18 (a) shows and is used for flat or the another kind of scheme of the formula that the sews up bottom of discharging opening bottom is arranged, the latter has a hole 109 that is used to be provided with discharging opening.

Shown in Figure 19 to 21 is a kind of container of different types, and wherein two leno cellular 110,111 A-B along the line are stitched together to form a container 112 that four compartments are arranged.One group of hole 113 is arranged on the every tubular fabric, they on the mounted container be in alignment with each other between each compartment, to form passage.The sidewall that reinforcement district 110A, the 110B of every fabric 110,111 and 111A, 111B form container together.For this embodiment, need do square stitching on the top.In Figure 22, respectively there is otch on the top of strengthening district 110A, 110B, 111A, 111B and sews up and connect together to constitute four angle drop handles 114,115,116,117.In Figure 23, half of the width on the top of district 110B and 111B is stitched together and bends constituting a passage (ring) 118 in a side, and half of the width on the top of district 110A and 111A is stitched together similarly and bend and form a passage (ring) 119 with the opposite side at container.The remaining part of reinforcement district 110A, 11B is stitched together and links up to form a single drop handle 120.In Figure 24, the bottom of district 110A, 110B, 111A, 111B is provided with to constitute the lifting passage (ring) 121,122 of bottom in above-mentioned similar mode, and the top of district 110A, 110B, 111A, 111B is sewed up and linked up to constitute two drop handles 123,124.Under the situation of the modification container shown in Figure 22 and 23,125 places need other square stitching at the top, but under the situation of modification shown in Figure 24, and it is collapsible and sew up to constitute a top 126 to strengthen the top in district.

Claims (26)

1, a kind of manufacturing comprises the method for a bottom, soft bulk container of the agent structure of upwardly extending antetheca, rear wall and sidewall from the bottom at least, the method comprises the steps: to provide a leno cellular, be arranged to rare two relative reinforcement districts in described tubular fabric, the enhancement Layer district constitutes two relative sidewalls of container at least during assembling vessel.

2, the method for claim 1 is characterized in that, described reinforcement district is made up of the warp thread of higher-strength, and the zone between described reinforcement district is made up of light low intensive warp thread.

3, method as claimed in claim 1 or 2 is characterized in that, is making otch on the leno cellular to strengthen forming the border between district and the non-reinforcement district.

4, method as claimed in claim 3 is characterized in that, makes four otch, and each otch all extends downwards from the upper limb of fabric.

5, require described method as arbitrary claim among the claim 1-4, it is characterized in that, the lower edge of side wall construction be attached to one independently the bottom on.

6, method as claimed in claim 3 is characterized in that, makes two groups of otch on fabric, and first group of four otch extend downwards from the upper limb of fabric, and second group of four otch extend upward from the lower edge of fabric.

7, method as claimed in claim 6 is characterized in that, the lower edge of strengthening the district is lumped together and interconnects to constitute the part of bottom at least.

8, method as claimed in claim 7 is characterized in that, the lower edge of not strengthening the district is lumped together and interconnects to constitute the another one part of bottom at least.

9, the described method of arbitrary as described above claim is characterized in that, the upper limb of strengthening distinguishing lumps together and interosculates to constitute one or more drop handles.

10, the described method of arbitrary as described above claim is characterized in that, the upper limb in non-reinforcement district constitutes the top cover of container.

11, the described method of arbitrary as described above claim, it is characterized in that, with two or polylith each at least two relative reinforcement districts of tool the leno cellular combination and fit together so that a container to be provided, wherein strengthen the district and jointly constitute at least the exterior side wall structure but not strengthen distinguishing the partition wall that jointly constitutes between the independently divided chamber of internal tank.

12, a kind of container of making by the described method of aforementioned arbitrary claim.

13, a kind of manufacturing as indicated above substantially and the method for soft bulk container as shown in drawings.

14, a kind of as indicated above substantially and container as shown in drawings.

15, a kind of method of making bulk container, this container comprises a bottom at least, one from the bottom agent structure of upwardly extending antetheca, rear wall and sidewall, thereby the method comprises the steps: to provide a leno cellular, between described otch forms four parts at least four otch that extend from the fabric top of making on the described fabric downwards, each part becomes the upwardly extending part of left side, right side, antetheca and rear wall respectively, described antetheca and rear wall extendible portion is combined and be attached at least one adjacent separately side wall extension to divide.

16, method as claimed in claim 15 comprises the steps: to provide at least two relative reinforcement districts on described leno cellular, and described reinforcement district constitutes at least two relative sidewalls of container during assembling vessel.

17, according to the described method of claim 16, it is characterized in that, strengthen the district and form, and the zone between described reinforcement district is by forming than the low-intensity warp thread by the higher-strength warp.

18, require described method as arbitrary in the claim 15 to 17, it is characterized in that, on the otch of opening on the leno cellular is being strengthened border between district and the non-reinforcement district.

19, require described method as arbitrary in the claim 15 to 18, it is characterized in that, the lower edge of agent structure is attached to one independently on the bottom.

20, require described method as arbitrary in the claim 15 to 18, it is characterized in that, make two groups of otch on fabric, four otch of first group extend downwards from the upper limb of fabric, and four otch of second group extend upward from the lower edge of fabric.

21, method as claimed in claim 20 is characterized in that, two lower edges of strengthening the district are lumped together and interconnects to constitute the part of bottom at least.

22, method as claimed in claim 21 is characterized in that, the lower edge in non-reinforcement district is lumped together and interconnects to constitute the other part of bottom at least.

23, require described method as arbitrary in the claim 16 to 22, it is characterized in that, the top edge of strengthening the district is lumped together and interconnect to constitute a drop handle.

24, a kind of according to the described arbitrary container that requires described method to make of claim 15 to 24.

25, a kind of manufacturing as indicated above substantially and the method for soft bulk container as shown in drawings.

26, a kind of as indicated above substantially and container as shown in drawings.

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