EP0826081A1 - Dispositif de nettoyage pour machine a tricoter - Google Patents

Dispositif de nettoyage pour machine a tricoter

Info

Publication number
EP0826081A1
EP0826081A1 EP96914285A EP96914285A EP0826081A1 EP 0826081 A1 EP0826081 A1 EP 0826081A1 EP 96914285 A EP96914285 A EP 96914285A EP 96914285 A EP96914285 A EP 96914285A EP 0826081 A1 EP0826081 A1 EP 0826081A1
Authority
EP
European Patent Office
Prior art keywords
duct
knitting machine
ring
cleaning device
gas
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.)
Withdrawn
Application number
EP96914285A
Other languages
German (de)
English (en)
Inventor
William Ewart Alan Shelton
Mark Alan Shelton
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.)
Memminger IRO GmbH
Original Assignee
Alan Shelton Ltd
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
Priority claimed from GBGB9510120.0A external-priority patent/GB9510120D0/en
Priority claimed from GBGB9518930.4A external-priority patent/GB9518930D0/en
Application filed by Alan Shelton Ltd filed Critical Alan Shelton Ltd
Publication of EP0826081A1 publication Critical patent/EP0826081A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/32—Devices for removing lint or fluff

Definitions

  • This invention relates to a cleaning device for a knitting machine, and to a knitting machine incorporating such device.
  • a cleaning device for a knitting machine comprising a ring-like duct disposed around an upper part of the machine, the duct having therein at least one opening directed towards feed devices which supply yarn to needles of the knitting machine, and blowing means operative to supply gas to the duct, whereby at least one gas stream is blown out of said at least one opening and is directed towards said feed devices to clean the latter.
  • the duct is provided with one such opening for each of the feed devices.
  • the ring-like duct is of annular configuration.
  • the gas is fed into the ring-like duct at either end thereof by means of a flow diverter, the flow diverter being operative to direct the flow of said gas selectively to the ends of the ring-like duct.
  • the gas is fed to the ring-like duct by way of a branched connector
  • the flow diverter comprises an adjustable diverter member disposed in the branched connector.
  • the diverter member is preferably angularly movable within the branched connector.
  • the flow diverter can comprise first and second valves disposed respectively at the ends of the ring-like duct, the first and second valves being selectively operable.
  • the first and second valves are linked so that when the first valve is open the second is closed and vice versa.
  • a knitting machine comprising feed devices operative to supply yarn to needles of the machine, and a cleaning device for cleaning the feed devices, the cleaning device comprising a ring ⁇ like duct disposed around an upper part of the machine, the duct having therein at least one opening directed towards the feed devices, and blowing means operative to supply gas to the duct, whereby at least one gas stream is blown out of said at least one opening and is directed towards the feed devices to clean the same.
  • the duct is provided with one such opening for each of the feed devices.
  • the ring-like duct is of annular configuration.
  • the gas is fed into the ring-like duct at either end thereof by means of a flow diverter, the flow diverter being operative to direct the flow of said gas selectively to the ends of the ring-like duct.
  • the gas is fed to the ring-like duct by way of a branded connector
  • the flow diverter comprises an adjustable diverter member disposed in the branched connector.
  • the diverter member is preferably angularly movable within the branched connector.
  • the flow diverter can comprise first and second valves disposed respectively at the ends of the ring-like duct, the first and second valves being selectively operable.
  • the first and second valves are linked so that when the first valve is open the second is closed and vice versa.
  • the feed devices are disposed in a ring around the upper part of the knitting machine, and the duct is disposed above said ring and is of a diameter greater than said ring.
  • yarn is supplied to the feed devices by way of yarn tubes, and the yarn tubes pass generally vertically through a central space in the ring-like duct.
  • the duct is preferably made from flexible hose.
  • the blowing means desirably comprises at least one fan.
  • said at least one opening is also directed towards the needles of the knitting machine, so that the gas emitted therefrom flows towards the needles after passing the feed devices.
  • the cleaning device also comprises at least one suction inlet disposed closely adjacent to the needles, and ducting which connects said at least one suction inlet to the blowing means, such that gas is drawn in through said at least one suction inlet by the blowing means and is then re-emitted through said at least one opening in the ring-like duct.
  • the cleaning device further comprises a filter through which the gas is passed in between being sucked through said at least one suction inlet and being blown out of said at least one opening.
  • the blowing means and/or the filter is disposed remotely from the knitting machine.
  • Figure 1 is a schematic side view of a knitting machine incorporating a cleaning device according to the present invention.
  • Figure 2 is a schematic plan view of a flow diverter forming part of the cleaning device shown in Figure 1.
  • the illustrated knitting machine is of the circular type and comprises generally a needle bed 10 containing needles to which yarn is supplied by way of a series of feed devices 11 disposed in a ring around the upper part of the machine. The yarn is in turn supplied to the feed devices 11 from a creel (not shown) by way of yarn tubes 12.
  • the knitting machine includes a cleaning device which comprises a cylinder 13 disposed centrally of the machine and whose lower end terminates relatively close to the needle bed 10.
  • a cleaning device which comprises a cylinder 13 disposed centrally of the machine and whose lower end terminates relatively close to the needle bed 10.
  • An annular gap 14 is thereby defined between the cylinder end and the needle bed, and this forms a suction inlet through which air can be drawn in across the needles.
  • An upper end of the cylinder 13 is connected by way of arch- shaped ducting 15 to a blower in the form of a fan 16.
  • a blower in the form of a fan 16 Before reaching the fan itself, air passing through the ducting is drawn through a filter bag 17.
  • the fan 16 and filter bag 17 are disposed on the workroom floor at a location remote from the knitting machine to facilitate servicing of the fan and emptying of the filter bag.
  • the fan 16 is connected by way of further arch-shaped ducting 18 to a ring-like duct 19 disposed around the upper part of the knitting machine.
  • the duct 19 is of annular configuration and is made of flexible hose.
  • the duct 19 is provided with a series of openings 20, one for each of the feed devices 11.
  • Each opening 20 is directed towards the respective feed device so that air emitted from the opening flows over the latter.
  • Each opening 20 is also directed towards the needle bed 10 so that, after passing the respective feed device, the air flows on towards the suction inlet 14.
  • the cleaning device thus forms a system in which air is continually circulated and lint is removed from the circulating air flow.
  • the system is therefore essentially self-contained and is advantageous in preventing cross-contamination between different knitting machines in the same workroom. Also, because the air streams emitted from duct 19 flow right down to the point where the suction effect is pulling the air into the cylinder 13, the air is still moving from the blowing action as the suction effect takes over, and this increases the energy efficiency of the system.
  • the duct 19 has its two ends 30,31 juxtaposed.
  • the ends 30,31 are connected to the ducting 18 by means of a branched connector 32 which, in the illustrated embodiment, is of generally Y-shaped configuration.
  • a flow diverter 33 in the form of a diverter plate 34 which is pivoted at its middle so as to be angularly movable about a shaft 35.
  • the plate 34 is pivotable between a first position (shown in full lines) wherein gas from the ducting 18 is deflected into the end 30 of the duct 19, and a second position (shown in broken lines) wherein the gas is deflected into the other end 31 of the duct 19 instead.
  • the gas after deflection issues through the openings 20 and impinges upon the yarn feeding devices to clean the latter.
  • the gas is emitted from the openings 20 at the respective ends 30,31 of the duct 19 into which it is deflected, at a greater force than would be the case if the gas were allowed to flow into both ends simultaneously.
  • the deflector plate 34 is switched between its two said positions at regular intervals, so that the improved cleaning effect is alternated between the two ends of the duct 19. This can be performed automatically by means of a geared motion.
  • the deflector plate 34 is movable rectilinearly between respective positions in which it deflects the flow of gas selectively into the two ends 30,31 of the duct 19.
  • the deflector plate 34 is replaced by a pair of butterfly-type valves disposed respectively at the ends 30,31 of the duct 19. These valves are linked together so that when one is open the other is closed, and vice versa.
  • the use of the ring-like duct 19 is advantageous in several respects.
  • the duct does not have to be disposed above the level at which the yarn tubes enter the knitting machine.
  • the duct can be positioned relatively close to the feed devices so that the cleaning action of the air streams emitted from the openings 20 is highly effective. This is particularly advantageous where tall creels are used, where the yarn tubes enter the knitting machine at a relatively high level.

Abstract

Un conduit annulaire (19) est placé autour de la partie supérieure d'une machine à tricoter et présente une pluralité d'ouvertures (20) orientées respectivement dans la direction des dispositifs d'alimentation (11) fournissant le fil aux aiguilles de la machine à tricoter. L'air est aspiré dans une entrée d'aspiration (14) au niveau de l'extrémité inférieure d'un cylindre (13) en passant sur les aiguilles proprement dites et cet air est ensuite propulsé par un ventilateur (16), par des ouvertures (20), sur les dispositifs d'alimentation (11). Les débris entraînés dans le flux d'air sont extraits par un sac filtrant (17) et l'air, ayant passé sur et autour des dispositifs d'alimentation (11), se dirige vers l'entrée d'aspiration (14), pour être recyclé par cette dernière.
EP96914285A 1995-05-16 1996-05-16 Dispositif de nettoyage pour machine a tricoter Withdrawn EP0826081A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9510120.0A GB9510120D0 (en) 1995-05-16 1995-05-16 Cleaning device for a knitting machine
GB9510120 1995-05-16
GBGB9518930.4A GB9518930D0 (en) 1995-09-15 1995-09-15 Modified cleaning device for a knitting machine
GB9518930 1995-09-15
PCT/GB1996/001170 WO1996036754A1 (fr) 1995-05-16 1996-05-16 Dispositif de nettoyage pour machine a tricoter

Publications (1)

Publication Number Publication Date
EP0826081A1 true EP0826081A1 (fr) 1998-03-04

Family

ID=26307049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96914285A Withdrawn EP0826081A1 (fr) 1995-05-16 1996-05-16 Dispositif de nettoyage pour machine a tricoter

Country Status (2)

Country Link
EP (1) EP0826081A1 (fr)
WO (1) WO1996036754A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE653062A (fr) * 1963-09-12
CH489653A (de) * 1966-09-05 1970-04-30 Luwa Ag Vorrichtung zum pneumatischen Entstauben der Arbeitszone von zentralsymmetrischen Textilmaschinen
JPH06101146A (ja) * 1992-09-18 1994-04-12 Fukuhara Seiki Seisakusho:Kk 丸編機における繊維屑などの吸塵・排出装置
DE69407426T2 (de) * 1993-09-30 1998-04-09 Shelton Alan Ltd Reinigungsanlage für strickmaschinen
WO1995019463A1 (fr) * 1994-01-15 1995-07-20 Monarch Knitting Machinery (Uk) Limited Metier a tricot

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9636754A1 *

Also Published As

Publication number Publication date
WO1996036754A1 (fr) 1996-11-21

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