GB2259504A - Applying a fleece band to an endlessly circulating support web - Google Patents

Applying a fleece band to an endlessly circulating support web Download PDF

Info

Publication number
GB2259504A
GB2259504A GB9219447A GB9219447A GB2259504A GB 2259504 A GB2259504 A GB 2259504A GB 9219447 A GB9219447 A GB 9219447A GB 9219447 A GB9219447 A GB 9219447A GB 2259504 A GB2259504 A GB 2259504A
Authority
GB
United Kingdom
Prior art keywords
fleece band
support web
run
fleece
band
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
Application number
GB9219447A
Other versions
GB9219447D0 (en
GB2259504B (en
Inventor
Klaus Minichshofer
Peter Muller
Hannes Pum
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Textilmaschinenfabrik Dr Ernst Fehrer AG
Original Assignee
Textilmaschinenfabrik Dr Ernst Fehrer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Textilmaschinenfabrik Dr Ernst Fehrer AG filed Critical Textilmaschinenfabrik Dr Ernst Fehrer AG
Publication of GB9219447D0 publication Critical patent/GB9219447D0/en
Publication of GB2259504A publication Critical patent/GB2259504A/en
Application granted granted Critical
Publication of GB2259504B publication Critical patent/GB2259504B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/0326—Controlling transverse register of web by moving the unwinding device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/16—Associating two or more webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

A fleece band 1 unwound from a roll 11 is applied as contiguous coils to an endless support web 2. Each coil extends at a slight angle of inclination to the longitudinal direction of web 2. This is achieved by fleece band feed device 3, including edge trimmers 12, being moved by carriage 4 on rails 5 transversely of the web 2 as the band 1 is applied. To ensure that adjacent coils are precisely contiguous, the feed device 3 is pivotally mounted by bearing 17 on carriage 4 and the angular position of the feed device is adjusted as carriage 4 moves on rails 5. The angular adjustment is made in dependence upon the sensing at 24 of the position of the last applied coil, the sensing at 25 of the position of the fleece band 1 approaching web 2, and the sensing at 23 of the current angular position. <IMAGE>

Description

f -.. 14 - 1 Apparatus for applying a fleece band to an endlessly
circulating support web The invention relates to apparatus for applying a fleece band to an endlessly circulating support web in contiguous coils, comprising a fleece band feed device which is movable transversely relative to the support web and has an edging device for the fleece band run supplied to the support web, and further comprising a device for detecting the longitudinal course or longitudinal marginal course of the already applied fleece band coil which forms the current contact margin for the fleece band run approaching the support web.
It is known (EP-A 123 969) that, to enable a fleece band to be applied in a plurality of contiguous coils to an endlessly circulating support web in such a way that the individual coils are accurately laid edge to edge, the cross-feed for the support web can be controlled relative to the feed device according to the longitudinal course of the fleece band coil already applied to the support web and forming the current contact margin. To this end a marker thread is fed =_ynchronously with the fleece band, in order with the aid of the marker thread course (detected by a line camera) to derive a correcting variable to control the drive for the cross-feed of the support web relative to the - in this case - stationary feed device. A disadvantage of this known apparatus, however, is that sensitive control of the drive for the cross-feed of the support web can be achieved only with increased expense, due to the relatively large masses requiring - a to be moved, and that for a given angle of inclination at which the fleece band is to be fed on to the support web, supply of the fleece band in the direction of circulation of the support web interferes with the feed accuracy and brings a risk of wrong drafts in the fleece band run approaching the support web.
The problem underlying the invention is therefore to improve apparatus for applying a fleece band to an endlessly circulating support web with simple structural means so as to ensure precise edge-to-edge contiguity ef the fleece band coils successively applied to the support web.
The invention solves the problem posed in that the feed device with the edging device is pivotably mounted on a rotational axis perpendicular tc the fleece band run or support web run in the vicinity of the fleece band supply and spaced relative to the point of impact of the fleece band run on the support web and is rotationally adjustable in dependence on the longitudinal course or longitudinal marginal course of the fleece band coil currently forming the contact margin.
The rotational adjustability of the feed device about an axis perpendicular to the fleece band and support web first makes it possible for the fleece band run approaching the support web to be aligned in the direction of the preset angle of inclination for the fleece band coils, and consequently creates advantageous conditions for accurate edge-to-edge laying of the individual coils. Since the rotational -t 1 axis for the feed device is at a distance from the point of impact of the fleece band run on the support web, it also becomes simple to shift the fleece band run approaching the support web at right angles to its longitudinal direction. so that this rotational adjustment can be utilised particularly advantageously to shift the fleece band run approaching the support web away from its straight course, when this is necessary due to the irregular course of the contact margin of the last fleece band coil applied, for accurate edge-to-edge connect ion of the next f 1 eece band coil. The transverse shifting of the fleece band run due to the rotational adjustment of the feed device is superimposed on the drive for the cross-feed adapted to the preset angle of inclination - of the feed device relative to the support web, without intervention in this cross-feed being necessary, although in special cases additional intervention in the cross-feed is also possible.
If, due to edging of the f leece band run approaching the support web, the fleece b3nd applied can be expected to be of constant width, all that is necessary in order to control the rotational adjustment of the feed device is to detect the longitudinal course of the f I eece band on the support web and in the sup.p I y zone. Since this is generally not the case, however, control will be substantially mc-re accurate if, according to a further development of the invention, between the edging device and the point of impact of the supplied fleece band run on the support web there is a device for detecting the position of the connection margin of the f 1 eece band run approaching the support web, whi 1 e the device for detecting the longitudinal marginal course of the already applied fleece band coil, as setvalue emitter, and the device for detecting the position of the connection margin of the fleece band run approaching the support web, as actual-value emitter, are connected to a controller for the pivoting of the feed device. If due to deviation of the contact margin of the last fleece band coil applied from a straight course an actuallset-value variance is detected, the pivot drive for the feed device is triggered to compensate for the variance, and the fleece band run approaching the support web is made to track the deviation in the course of the contact margin so that it bears accurately edge to edge on the contact margin of the fleece band coil already applied.
In order to detect the position of the connection margin of the fleece band run approaching the support web, various sensors may be used, if these sensors can determine the marginal course sufficiently accurately without interfering with the fleece band. run. Particularly advantageous conditions can be obtained in this connection, however, with a device which comprises an optoelectronic receiver directed on to deflection means for the fleece band run, because the optoelectronic receiver, preferably a line camera, allows the measurement to be performed without contact in a known manner, and because the deflection means for the fleece band run fixes structurally the course of this run relative to the measuring device.
The subject of the invention is illustrated by way of example in the drawings. in which:
t Fig. 1 is a diagrammatic side view, partly cut away, of apparatus embodying the invention for applying a fleece band to an endlessly circulating support web in a plurality of contiguous coils; and Fig. 0_ represents the pivot drive for the feed device in plan view on a section line II-II in Fig. 1, on a larger scale.
The illustrated apparatus for applying a fleece band 1 to an endlessly circulating support web 2 comprises essentially a feed device 3 for the fleece band 2, this feed device being movable by way of a carriage 4 along a rail guide 5 transversely relative to the support web 2, which is guided round deflecting rollers 5 and connected together to form a tube. The drive for this carriage 4 is a rack 7, which is parallel to the rail guide 5 and meshes with a pinion 9 driven by a motor 8.
The feed device 3 itself comprises an unwinding device 10 for a fleece band roll 11 and an edging device 12 for the fleece band run 1 which is unwound from the roll 11, and which approaches the support web 2. The run drawn off the roll 11 passes first through a freely sagging section 13, to allow compensation of internal tensions due to winding, before it passeE on to a belt conveyor 14, between which and a draw-off roller pair the f I eece band 1 is subjected to tract ion so that it can be trimmed accurately with the edging device 12.
The trimmed run is then passed over deflection means 16 to the support web 2, in order to form on the support web 2 a single- or multi-layer fleece reed comprising a plurality of contiguous coils fed at a preset angle of inclination.
is To allow the fleece band run 1, drawn off the fleece band roll 11 and trimmed at the margin with the edging device 12, to be fed to the circulating support web 2 accurately at the preset angle of inclination, the run 1 is aligned in the direction of the angle of inclination by means of the feed device 3. To this end the feed device 3 is mounted on the carriage 4 by means of a pivot bearing 17 so as to be pivotable about an axis perpendicular to the fleece band run 1 and to the support web 2 in the vicinity of the point 18 of impact of the run 1 on the web 2, but at a distance from this point 18 of impact, so that rotational adjustment of the feed device 3 brings with it transverse shifting of the fleece band run supplied to the web 2. This makes it possible in a simple manner to superimpose on the uniform cross-feed of the fleece band, by way of the carria-e 4, an additional transverse motion by means of which irregularities in the course of the contact margin of the last 'fleece band coil applied can be compensated, in that the run 1 supplied to the web 2 is made by way of the rotational adjustment of the feed device to track the contact margin according to these irregularities, so ensuring accurate edge to edge contact between the individual coils.
For the rotational adjustment of the feed device 3 relative to the carriage 4, a pivoting cylinder 19 is provided which is pivoted between the carriage 4 and feed device 3 and is double-acting. Its actuation is controlled by way of suitable valves 20 in its supply lines, of which for clarity's sake only one is indicated diagrammatically in Fig. 1. The actuating drive 21 for these valves 20 is triggered by a controller 22 connected to an angle pick-up 23, to give the actual value for the current rotational position of the feed device 3 relative to the carriage 4. In addition the controller 22 is provided to a device 24 for detecting the longitudinal marginal course of the already applied fleece band coil 2a forming the current contact margin for the fleece band run approaching the support web 2, and to a device 25 for detecting the position of the connection margin of the f leece band run approaching the support web. The measured value of the device 24 relating to the position of the contact margin of the fleece band coil 2a relative to the support web width serves as the set value, to which the actual value determined by the connection margin of the arriving fleece band run 1 is to be matched, in order to ensure that the arriving run 1 suitably tracks the coil 2a already applied. If the controller 22 detects an actual/set value variance, the valve 20 is triggered to compensate, so that the output signal from the device 24 for detecting the longitudinal -narginal course of the coil 2a already applied represents a control variable for the angle of inclination at which the fleece band is applied to the support web 2.
The device 24 for detecting the longitudinal marginal course of the fleece band run 1 approaching the support web 2 is preferably in the form of a line caniera, which detects the connection margin of the f leece band coil to be newly applied to the previous coil 2a, in the vicinity of the deflection means 16 for the fleece band between the draw-off rollers 15 and the point 18 of impact, in order to fix structurally the arrangement of the fleece band run relative to the optoelectronic measuring device as required for accurate position detection. On that side of the deflection guide opposite the line camera there is conveniently provided a light source to illuminate the fleece band margin to be detected. The deflection means 16, which preferably have a spreader effect on the fleece band, are provided with an aperture in the vicinity of the fleece band mar,Sin to be detected, to allow either the passage of light on to this margin or a clear view for the line camera.

Claims (2)

  1. C L A I M S is 1. Apparatus for applying a fleece band to an endlessly
    circulating support web in contiguous coils, comprising a fleece band feed device which is movable transversely relative to the support web and has an edging device for the fleece band supplied to the support web, and further comprising a device for detecting the longitudinal course or longitudinal marginal course or the already applied fleece band coil which forms the current contact margin for the fleece band run approaching the support web, characterised in that the feed device (3) with the edging device (12) is pivotably mounted on a rotational axis perpendicular to the fleece band run (1) or support web run (2) in the vicinity of the fleece band supply and spaced relative to the point (18) of impact or the fleece band run (1) on the support web (2) and is rotationally adjustable in dependence on the longitudinal course or longitudinal marginal course of the fleece band coil (2a) currently forming the contact margin.
  2. 2. Apparatus as claimed in claim 1, characterised in that between the edging device (12) and the point (18) of irr.pact of the supplied fleece band run (1) on the support web (2) there is a device (25) for detecting the position of the connection margin or the fleece band run (1) approaching the support web (2), and the device (24) for detecting the longitudinal marginal course of the already applied fleece band coil (2a), as set-value emitter, and the device (25) for detecting the position of the connection margin of the fleece band run (1) approaching the suppc.rt web (2), as actual-value emitter, are connected to a controller for the pivoting of the feed device (3).
    Apparatus as claimed in claim 1 or 2, characterised in that the device (25) for detecting the position of the connection margin of the fleece band run (1) approaching the support web (2) comprises an optoelectronic receiver directed on to deflection means (16) for the fleece band run (1).
GB9219447A 1991-09-16 1992-09-14 Apparatus for applying a fleece band to an endlessly circulating support web Expired - Fee Related GB2259504B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0184891A AT399520B (en) 1991-09-16 1991-09-16 DEVICE FOR APPLYING A FLEECE TAPE ON AN ENDLESS CONTINUOUS CARRIER

Publications (3)

Publication Number Publication Date
GB9219447D0 GB9219447D0 (en) 1992-10-28
GB2259504A true GB2259504A (en) 1993-03-17
GB2259504B GB2259504B (en) 1995-06-28

Family

ID=3522325

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9219447A Expired - Fee Related GB2259504B (en) 1991-09-16 1992-09-14 Apparatus for applying a fleece band to an endlessly circulating support web

Country Status (7)

Country Link
JP (1) JP2556423B2 (en)
AT (1) AT399520B (en)
DE (1) DE4229749C2 (en)
FR (1) FR2681344B1 (en)
GB (1) GB2259504B (en)
IT (1) IT1257444B (en)
TW (1) TW235317B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3686137A1 (en) * 2019-01-24 2020-07-29 Seiko Epson Corporation Transport device, printing apparatus, and method for adjusting feeding unit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953574A (en) * 1953-12-29 1960-09-20 Gen Aniline & Film Corp Dye compositions containing cobalt phthalocyanine phenyl sulfones
CN111778634B (en) * 2020-06-20 2021-05-04 山东华业无纺布有限公司 Lapping device of non-woven fabric processing equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962576A (en) * 1988-11-22 1990-10-16 Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft Process and apparatus for needling a non-woven strip to a revolving endless carrier web

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE1247616B (en) * 1963-11-19 1967-08-17 Continental Gummi Werke Ag Angled cutter for fabric webs, especially tire fabric webs
JPS55149193A (en) * 1979-05-07 1980-11-20 Sharp Corp Manufacture of silicon carbide substrate
JPS56106965A (en) * 1980-01-30 1981-08-25 Yasushi Kubo Organic and inorganic composite pigment and its preparation
AT375101B (en) 1982-12-10 1984-07-10 Fehrer Textilmasch DEVICE FOR PRODUCING ENDLESS, NEEDLEED PAPER MACHINE FELTS
DE3319241A1 (en) * 1983-04-30 1984-11-15 Thomas Josef Heimbach GmbH & Co, 5160 Düren METHOD FOR PRODUCING AN ENDLESS TUBE FELT AND DEVICE FOR CARRYING OUT THIS METHOD
JPH0798603B2 (en) * 1987-05-08 1995-10-25 株式会社エヌシーエー Spreading machine
AT391677B (en) * 1988-11-22 1990-11-12 Fehrer Textilmasch DEVICE FOR THE SENSUAL APPLICATION OF A FLEECE TAPE ON A MOVING CARRIAGE RAIL

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962576A (en) * 1988-11-22 1990-10-16 Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft Process and apparatus for needling a non-woven strip to a revolving endless carrier web

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3686137A1 (en) * 2019-01-24 2020-07-29 Seiko Epson Corporation Transport device, printing apparatus, and method for adjusting feeding unit
JP2020117358A (en) * 2019-01-24 2020-08-06 セイコーエプソン株式会社 Conveyance device, printer, and method for adjusting delivery part
US11535470B2 (en) 2019-01-24 2022-12-27 Seiko Epson Corporation Transport device, printing apparatus, and method for adjusting feeding unit

Also Published As

Publication number Publication date
ATA184891A (en) 1994-10-15
DE4229749A1 (en) 1993-03-18
FR2681344B1 (en) 1995-03-10
GB9219447D0 (en) 1992-10-28
JP2556423B2 (en) 1996-11-20
FR2681344A1 (en) 1993-03-19
IT1257444B (en) 1996-01-25
AT399520B (en) 1995-05-26
ITGE920098A1 (en) 1994-03-11
DE4229749C2 (en) 1995-05-04
TW235317B (en) 1994-12-01
JPH05310349A (en) 1993-11-22
GB2259504B (en) 1995-06-28
ITGE920098A0 (en) 1992-09-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010914