GB2055683A - Apparatus for inserting a lay flat tubular web in a circular-woven tube - Google Patents
Apparatus for inserting a lay flat tubular web in a circular-woven tube Download PDFInfo
- Publication number
- GB2055683A GB2055683A GB8018809A GB8018809A GB2055683A GB 2055683 A GB2055683 A GB 2055683A GB 8018809 A GB8018809 A GB 8018809A GB 8018809 A GB8018809 A GB 8018809A GB 2055683 A GB2055683 A GB 2055683A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubular web
- circular
- frame
- woven tube
- woven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D37/00—Circular looms
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D3/00—Woven fabrics characterised by their shape
- D03D3/02—Tubular fabrics
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
- Looms (AREA)
- Making Paper Articles (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
In a circular loom (1), woven tubular fabric (3) is guided over a roller (12) in a flattened condition after having been provided with side pleats by external folding plates and internal spreaders (17). To introduce a lay flat tubular liner (11) in the fabric tube (3) during weaving and flattening, a flat frame (7) is supported within in the fabric tube (3). The frame (7) supports the spreaders (17) and has side members extending into the outer edges of the fabric tube (3) and guide rods (6) over which the liner (11) is fed in zig-zag formation by double belt conveyors. The frame (7) ensures that outer folded edges of the tubular liner (11) lie precisely in outer folded edges of the flattened fabric tube (3). <IMAGE>
Description
SPECIFICATION
Apparatus for inserting a tubular web in a circular-woven tube
The invention relates to an apparatus for inserting a tubular web in a circular-woven tube during weaving and flattening in a circular loom.
According to a method known from DE-OS 27 21 771 and suggested in prior Patent
Application No. 7933809, internal tubular webs withdrawn from supply reels are inserted in circular-woven tubes by weaving around them a circular fabric of stretched plastics tapes. Since sacks are made for example in the manner described in prior Patent
Application No. 7933809 starting with the flattened circular-woven tubular web having the inserted inner tubular web, it is necessary to insert the inner tubular web in the tubular woven fabric in such a way that the outer folded edges of the inner tubular web lie precisely in the folded edges of the outer tubular web of fabric.
It is therefore the problem of the invention to provide an apparatus with which inner tubular webs with and without side pleats can be precisely inserted during weaving and flattening of the circular-woven tube, possibly whilst side pleats are also being formed therein.
According to the invention, this problem is solved in an apparatus of the aforementioned kind in that substantially in the flattening plane of the woven tube defined by the first take-off or direction-changing roller there is provided a flat frame comprising guide rods which are secured therein transversely to the tube axis and over which a tubular web withdrawn from a supply reel is led in zig-zag formation, and that the sides of the frame each lead into one of the side pleats being formed at both sides of the woven tube in the region of the outer edges.By means of the apparatus according to the invention, one ensures that, at the same time as the circularwoven tube is taken off and flattened, the inner tubular web is also withdrawn from a supply reel and inserted in a correct position in the circular-woven tube during flattening, thereby facilitating further processing of the thus prepared circular-woven tube without disruption to form sacks.
According to a preferred embodiment, double belt conveyors are provided which withdraw the tubular web from the supply reel, clamp the web between each other, have upper direction-changing or drive rollers defining an inlet nip at both sides of the tubular web and lower direction-changing rollers at the bottom of the frame, and the runs of which that clamp the tubular web run over the guide rods in zig-zag formation. This construction ensures that, for example, Z-folds formed in the inner tube can also be guided along.
Other advantageous constructions of the invention have been described in more detail in the subsidiary claims.
One example of the invention will now be described in more detail with reference to the drawing, wherein:- Figure 1 is a diagrammatic side elevation of the apparatus;
Figure 2 is a front elevation of the Fig. 1 apparatus with additional double belt conveyors which clamp the inner tubular web between each other;
Figures 3 to 5 are cross-sections through the flattened and side-pleated circular-woven tube with inserted inner tubular web, and
Figure 6 is a view corresponding to Fig. 1 showing the arrangement and drive for the double belt conveyors.
The circular loom 1 of conventional construction is only diagrammatically illustrated and is secured in the frame 2. The finished circular-woven tube is taken off downwardly over the weaving ring of the circular loom 1, laid into side pleats and wound into a supply reel (not shown) as a flattened circular-woven tubular web 4.
A carrier 5 secured to an upper transverse member of the frame 2 carries a frame 7.
Parallel horizontal guide rods 6 are secured to the parallel vertical members of the frame 7.
At its upper end, the frame 7 has a cross-bar 8 by which it is secured to the central carrier 5. Plummer blocks 10 secured to the upper transverse members of the frame 2 hold a supply reel 9 from which an inner tubular web 11 provided with side pleats is withdrawn and led in zig-zag formation over the guide rods 6.
The guide rods 6 are desirably convex. By means of this feeding device, the inner tubular web 11 is fed to the circular-woven tube in a taut and central condition.
To take off the flattened circular-woven tubular web 4 with the inner tubular web 11 forming an insert, there is a feed roller 1 2 which is followed by one or more guide rollers 13 to 15.
To enable the taken off circular-woven tube also to be provided with side pleats, side folding plates 1 6 secured to the machine frame 2 are pivotable against spring pressure.
Fabric spreaders consisting of levers 1 7 and secured to the frame 7 engage the outer folded edges of the circular-woven tube.
The inner tubular web 11 can be so inserted in the flattened circular-woven tubular web 4 that it lies parallel to a fabric tubular web 3.2 as is evident from Fig. 3. It can also be inserted in Z formation so that one side is disposed in the upper folded edge 3.1 and the other side in the opposite lower folded edge of the circular-woven tubular web, as is evident from Fig. 4.
If the circular-woven tubular web is pro vided with double side pleats, the inner tubular web 11 can also be symmetrically inserted in the central folded edges as is shown in Fig.
5.
To enable Z folds formed in the inner tubular web 11 also to be guided along, double belt conveyors 22, 23 and 22', 23' may be provided at both sides of the central frame 7.
The belts of these double belt conveyors run over drive rollers 18, 1 9 and 18', 19' which are arranged above the weaving ring 29 at both sides of the inner tubular web 11 to form an inlet nip, and also over directionchanging rollers 20, 21 and 20', 21' disposed at the lower end of the frame 7. The confronting runs 24, 25 of the double belt conveyors pass in zig-zag formation over the guide rods 6 and clamp the inner tubular web 11 between each other.
To drive the double belt conveyors, run driving or direction-changing roller 1 3 of the circular-woven tubular web 4 is provided with a sprocket engaging an endless chain 26 which drives the intermediate sprocket 27.
The intermediate sprocket 27 is connected by an endless chain 28 to sprockets which, in turn, are connected to the drive rollers 18, 1 9 and 18', 19'.
Claims (6)
1. Apparatus for inserting a tubular web in a circular-woven tube during weaving and flattening in a circular loom, characterised in that substantially in the flattening plane of the woven tube (3) defined by the first take-off or direction-changing roller (12) there is provided a flat frame (7) comprising guide rods (6) which are secured therein transversely to the tube axis and over which a tubular web (11) withdrawn from a supply reel (9) is led in zigzag formation, and that the sides of the frame (7) each lead into one of the side pleats being formed at both sides of the woven tube (3) in the region of the outer edges (3.1).
2. Apparatus according to claim 1, characterised in that the frame (2) of the circular loom (1) is provided with opposed plates (16) for forming side pleats in the woven tube (3) during take-off and the frame (7) is provided with fabric spreaders which consist of pivotable levers (17) and engage in the outer folded edges (3.1) from the inside.
3. Apparatus according to claim 1 or claim 2, characterised in that the guide rods are provided with a low friction surface or rollers.
4. Apparatus according to one of claims 1 to 3, characterised in that double belt conveyors (22, 23; 22', 23') are provided which withdraw the tubular web (11) from the supply reel (9), clamp the web between each other, have upper direction-changing or drive rollers (18, 19; 18', 19') defining an inlet nip at both sides of the tubular web (11) and lower direction-changing rollers (20, 21; 20', 21') at the bottom of the frame (7), and the runs (24, 25) of which that clamp the tubular web (11) run over the guide rods (6) in zigzag formation.
5. Apparatus according to one of claims 1 to 4, characterised in that the double belt conveyors derive their drive from the take-off or direction-changing rollers (12, 13) of the circular woven tube (3).
6. Apparatus for inserting a tubular web in a circular-woven tube during weaving and flattening in a circular loom constructed and arranged substantially as hereinbefore described and shown in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2925553A DE2925553C2 (en) | 1979-06-25 | 1979-06-25 | Device for inserting a hose in a tubular fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2055683A true GB2055683A (en) | 1981-03-11 |
| GB2055683B GB2055683B (en) | 1983-03-09 |
Family
ID=6074076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8018809A Expired GB2055683B (en) | 1979-06-25 | 1980-06-09 | Apparatus for inserting a lay flat tubular web in a circular-woven tube |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS564742A (en) |
| AT (1) | AT367468B (en) |
| DE (1) | DE2925553C2 (en) |
| FR (1) | FR2459717A1 (en) |
| GB (1) | GB2055683B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3278767D1 (en) * | 1981-09-03 | 1988-08-18 | Torii Winding Machine Co | Circular loom for producing double bag |
| FR2740146B1 (en) * | 1995-10-18 | 1998-01-16 | Caer Yves | CONTINUOUS MANUFACTURING MACHINE FOR DOUBLE TEXTILE TUBES |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1053876A (en) * | 1950-05-30 | 1954-02-05 | Turboloom Corp | Multi-layered tubular material and machine for its manufacture |
| US2913799A (en) * | 1953-12-30 | 1959-11-24 | Sagem | Woven, lined tubular fabric and method and means for manufacturing same |
| DE2721771C2 (en) * | 1977-05-13 | 1985-04-25 | Windmöller & Hölscher, 4540 Lengerich | Process for the production of unilaterally open sacks with a load-bearing outer sack and a sealing inner sack |
| DE2842954C2 (en) * | 1978-10-02 | 1985-01-24 | Windmöller & Hölscher, 4540 Lengerich | Method and device for producing sacks that are open on one side and have an inner sack made of thermoplastic plastic film and an outer sack made of a circular fabric made of stretched plastic tapes |
-
1979
- 1979-06-25 DE DE2925553A patent/DE2925553C2/en not_active Expired
-
1980
- 1980-06-03 AT AT0292980A patent/AT367468B/en not_active IP Right Cessation
- 1980-06-09 GB GB8018809A patent/GB2055683B/en not_active Expired
- 1980-06-16 JP JP8127180A patent/JPS564742A/en active Granted
- 1980-06-16 FR FR8013286A patent/FR2459717A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2055683B (en) | 1983-03-09 |
| FR2459717B1 (en) | 1984-11-30 |
| JPS64492B2 (en) | 1989-01-06 |
| ATA292980A (en) | 1981-11-15 |
| FR2459717A1 (en) | 1981-01-16 |
| DE2925553B1 (en) | 1980-12-18 |
| AT367468B (en) | 1982-07-12 |
| JPS564742A (en) | 1981-01-19 |
| DE2925553C2 (en) | 1981-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4624198A (en) | Method and apparatus for fabricating pillowcases with attached hems | |
| CA2153642C (en) | Cellular panel and method and apparatus for making the same | |
| US6484786B1 (en) | Light control window covering and method and apparatus for its manufacture | |
| US3649411A (en) | Apparatus for the production of a bonded textile fabric | |
| KR19990008044A (en) | Lamination Device of Web | |
| SE505390C2 (en) | Laminated cladding as well as the method and substance for their preparation | |
| US3853664A (en) | Bag making machine and method | |
| US4172748A (en) | Method of forming non-woven net structures | |
| GB1585347A (en) | Symmetrical sack with double side folds | |
| EP0562383B1 (en) | A method of continuously conveying segments through a series of work stations | |
| GB2055683A (en) | Apparatus for inserting a lay flat tubular web in a circular-woven tube | |
| EP0478325A1 (en) | Folded zipper film and an apparatus and method for making it | |
| GB1566986A (en) | Method and apparatus for manufacturing bags of a continuous web of a thermoplastic synthetic sheet material | |
| JP3461010B2 (en) | Weft holding device for looms with a series of openings | |
| US4173990A (en) | Temporary fabric and method and apparatus for weaving same | |
| US5560400A (en) | Removing waste selvage from woven fabric | |
| EP0466192A2 (en) | Method and apparatus for bonding light shielding strips to the shell plate of a film cartridge. | |
| US5442935A (en) | Apparatus for producing multi-axial non-woven fabric | |
| KR840001906B1 (en) | Apparatus for forming gussets in a tubular fabric in a circular loom | |
| US3546044A (en) | Machine for making unwoven sheet material | |
| CA2224533A1 (en) | Bag-folding apparatus | |
| US2281308A (en) | Mechanism for the manufacture of comfortables, quilts, and the like | |
| KR900006279B1 (en) | Circular loom for producing a tubular material | |
| US4529186A (en) | Cloth spreading machine with vacuum transport belt for condensing cloth | |
| CA1197964A (en) | Process for the netlike opening of fibrilled films |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |