US3759300A - Intermediate weft thread supply apparatus for looms - Google Patents

Intermediate weft thread supply apparatus for looms Download PDF

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Publication number
US3759300A
US3759300A US00230023A US3759300DA US3759300A US 3759300 A US3759300 A US 3759300A US 00230023 A US00230023 A US 00230023A US 3759300D A US3759300D A US 3759300DA US 3759300 A US3759300 A US 3759300A
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United States
Prior art keywords
shaft
drum
thread
conical
annular member
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.)
Expired - Lifetime
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US00230023A
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English (en)
Inventor
E Pfarrwaller
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Sulzer AG
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Sulzer AG
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Filing date
Publication date
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Publication of US3759300A publication Critical patent/US3759300A/en
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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
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • ABSTRACT In a thread storage and supply device including a drum supported at one end from a shaft and including means to wind a thread onto the drum for subsequent pu1l-off over the free end of the drum, an annular member surrounds the drum with close clearance therefrom at the end from which the drum is supported, thereby preventing the thread from becoming entangled orwound up upon the shaft.
  • the present invention pertains to thread storage and supply apparatus, for example for the temporary storage of the length of weft thread required to make one or more picks in the operation of a loom of the type employing shuttles without pirns.
  • the invention thus relates to apparatus of the type disclosed and claimed in U. S. Pat. Nos. 3,4l 1,548 and 3,455,341 which are assigned to the assignee hereof.
  • a drum is rotatably mounted, via bearings, on a free end of a hollow rotating shaft with a thread guide or flyer affixed to the shaft inboard of the drum and extending radially outward beyond the drum and extending axially just over the adjacent end of the drum in order to permit winding onto the drum of a thread passing through the shaft, the drum being held against rotation with the shaft by the action of weights or of magnets which couple it to a stationary frame without preventing pull-off of the thread from the drum.
  • one end of the drum is substantially aligned axially with the thread guide, or, equivalently stated, the thread guide or flyer extends axially of the drum only a short distance past the adjacent end of the drum.
  • the guide has moreover a large clearance form the drum. It is therefore possible, in these previously proposed construc tions, for the thread to slip off the drum at the end thereof adjacent the flyer, and to become entangled or wound up on the shaft.
  • an annular member which surrounds the drum with close clearance.
  • the clearance may be between 0.1 and 1.0 Millimeter but is preferably between 0.2 and 0.3 Millimeter and will seldom be greater than 0.5 Millimeter.
  • the construction is such that the arriving thread passes onto a conical surface, whether of the drum or of the annular member. In either case undesired backward passage of the thread is prevented.
  • the thread passing onto the conical surface immediately slips toward the small end of this surface, with the following coils serving to push the prior ones further in the same direction toward the free end of the drum from which they are pulled off for use.
  • FIG. 1 is an axial sectional view of a thread storage device in accordance with the invention, certain elements of structure being omitted for clarity;
  • FIGS. 2-6 are fragmentary axial sectional views of other thread storage devices in accordance with the invention.
  • a stationary frame or housing 1 supports a hollow shaft 3 at bearings 3 via a hub 4.
  • Another similar set of bearings may be provided elsewhere along the length of the shaft, to the left of FIG. I.
  • shaft 3 may be driven in any suitable manner, for example by means of a belt, as shown in U. S. Pat. No. 3,411,548.
  • Two tubes 5 and 6 are mounted on the hub 4, advantageously with their axes lying in a common plane containing the axis of rotation of the shaft 3, so that the tubes are apart about the axis of the shaft.
  • the thread coming from a supply not shown but positioned at the left of FIG. 1, passes through the hollow shaft 3 in the direction of the arrow 21, as indicated at 7.
  • the thread may for example be the thread to be incorporated as the weft in a cloth being woven on a loom.
  • the tube 6 serves only as a balance or counterweight to the weight of the tube 5.
  • the thread after being wound onto the drum 11 as presently to be set forth, is pulled off for use and passes through an eye 27 at the right of FIG. 1, i.e., beyond the free end of the drum, to the picking mechanism of the loom from where it is picked into the shed.
  • the hollow shaft 3 extends beyond its junction with the tube 5 as a stub shaft 8 which rotates with the shaft 3.
  • a substantially cylindrical winding body or drum 11 is rotatably supported coaxially to the shaft 3 from the stub shaft 8 by means of bearings 43.
  • the drum is however restrained from rotating, for example by means of magnets 12 and 13 disposed in the housing and in the drum, as shown and described in the issued patents hereinabove cited.
  • the drum includes a cylindrical portion 23 which connects to a first conical portion 14 by means of an intermediate conical portion 41 of smaller cone angle. At the right end the drum is provided with a flange 15 of larger maximum diameter than the portion 23 but which is also conical in shape.
  • a braking ring 18 is disposed in the housing 1 coaxially of the drum and is provided with bristles or similar flexible filamentary elements 17 for engagement with the flange, as also described in the cited patents.
  • the thread passes through the hollow shaft 3, as indicated at the arrow 21 and the flyer tube or arm 5 onto the conical portion 14 of the stationary drum 11.
  • Something like a half turn or a whole turn of the thread will exist on the conical portion 14, the previously wound thread slipping continuously to the right, in FIG. 1, onto the flatly conical portion 41 and thence onto the cylindrical portion 23.
  • the photoelectric detector 26 may be of the type described in US. Pat. No. 3,411,548 in which a beam of light directed at a portion of the surface of the drum is reflected into a photocell, provided that portion is not wholly or partly covered by coils of thread. It may alternatively be of the type disclosed in US. Pat. No. 3,455,341, wherein the drum includes an opening or a transparent portion or portions through which, in the absence of turns of thread obscuring it, light can pass from a lamp to a photocell so as to effect continued rotation of the fiyer.
  • An annular member 31 which may have the shape of a cup and which is provided with holes 32 for accommodation of the tubes 5 and 6, is fastened to the stub shaft 8 coaxially thereof and hence of the shaft 3 and drum.
  • the cup 31 thus rotates with the shaft 3 and stub shaft 8.
  • the cup surrounds the end of the drum 11 adjacent the shaft 3, and more particularly the end or limit 34 of the conical portion 14 of the drum, with however a small clearance indicated at 37 which may amount to a few tenths of a millimeter, according to the diameter of the yarn 7 being wound.
  • the photoelectric mechanism 26 should fail to slow or stop the shaft 3 despite an accumulation of turns of thread on the drum sufficient, according to the intended adjustment of the apparatus, to obstruct sufficiently the passage of light to the photo cell so as to actuate the drive to the shaft to a reduced or zero speed, further coils of thread will tend to accumulate on the conical portion 14 of the drum in the immediate vicinity of the drum end 34.
  • the thread is how ever prevented by the annular member 31 from passing to the left of the drum, in FIG. 1, and hence from forming coils on the shaft 8. The malfunction can therefore be readily corrected.
  • the cup or annular member, indicated at 31a itself includes adjacent the drum 11 a conical portion 36 matching the conical portion 14 of the drum. Between the rotating conical portion 36 of the cup and the stationary conical portion 14 of the drum, there is provided a small clearance 37 which again may be of a few millimeters.
  • the cup shown at 31b, is cylindrical in shape, at the portion thereof adjacent the drum, except that it is provided at its end with a conical bevel as indicated at 38, matching the conical portion 14 of the drum and constituting a continuation thereof, as in the embodiment of FIG. 2.
  • the drum, indicated at 110 is cylindrical, and the cup, 31c, includes a conical portion 39 which extends down to the immediate vicinity of the cylindrical surface of the drum.
  • the drum possesses neither of the conical portions indicated at 14 and 41 in FIG. 1, and the thread is deposited from the flyer tube 5 on the portion 39 of the rotating cup, slipping from that portion directly onto the cylindrical surface of the drum 11a. On this cylindrical surface, the turns are shifted to the right by the arrival of new turns.
  • the drum indicated at 1112, includes a conical portion 41 which however does not serve the function of the conical portion 14 in the embodiments of FIGS. 1-3. Rather, it has a very small cone angle, of the order of l to 3, being shown exaggerated in FIG. 5 for clarity.
  • the thread emerging from the tlyer tube 5 passes first to the conical portion 39 of the cup or annular member 31c.
  • the thread in the turn or partial turn so laid on the surface 39 immediately slips however to the right onto the weakly conical portion 41 of the drum, where succeeding turns shift it to the right as indicated by the arrow 25.
  • the portion 41 constitutes a relaxation cone which reduces the friction involved in slippage of the turns to the right.
  • FiG. 6 illustrates stili another embodiment, in which the drum itself, supported at one end on a shaft 46 to which it is afiixed, is caused to rotate by a motor 47 whereas the thread is delivered tangentially to the drum from a location fixed in the housing.
  • a stationary cup 31 is provided at the end of the drum from which it is supported, and fits about the drum with close clearance as in the embodiments previously described.
  • the invention can be employed with all types of yarn including metallic wires and finds application with other machines in addition to looms.
  • the invention provides thread storage apparatus comprising a body, as indicated at 1 I in FIGS. 1-3 and at 11a, 11b and 11c in FIGS. 4, 5 and 6 respectively, having an exterior surface conforming substantially to a surface of revolution.
  • the body is supported from one end thereof, by the shaft 8 and by bearings 43 between it and the shaft 8 in the embodiment of FIG. 1, and by a shaft 46 in FIG. 6 fixed to the body of that figure.
  • the apparatus further comprises means to wind a thread onto that body. These means comprise, in the embodiment of FIG. 1 and simi larly in the embodiments of FIGS. 2-5, the rotating shaft 3 and thread guide or flyer 5.
  • the winding means comprise the motor 47 coupled to the shaft 46 to rotate it.
  • the thread storage apparatus further comprises an annular member surrounding the body with close clearance therefrom as indicated at 31 in FIGS. 1 and 6, at 31a and 31b in FIGS. 2 and 3, and at 310 in FIGS. 4 and 5.
  • the body includes a conical enlargement as indicated for example at 14 in FIGS. 1, 2, 3 and 6, the large end of which is surrounded by the annular member.
  • the annular member includes as indicated at 36 and 38 in those figures respectively, a conical portion adjacent the body which matches the conical enlargement of the body.
  • the conical portion of the annular member when provided, is advantageously aligned with the winding means as indicated in FIGS. 4 and 5.
  • the thread storage apparatus of the invention comprises a frame as there indicated at 1. It further comprises a means such as the shaft 3 and bearings 43 rotatable with respect to that frame and which support the body 11 for rotation with respect to those supporting means.
  • Tube 5, constituting in that embodiment the winding means, and cup 31, constituting in that embodiment the annular member, are both supported on the shaft 3 from which the body 11 is supported via bearings 43, and means such as the magnets 12 and 13 shown in FIG. 1 are provided to restrain the body against rotation with respect to the frame.
  • Thread storage apparatus comprising a hollow rotatable shaft, a bearing supporting the shaft for rotation, a body having an exterior surface conforming substantially to a surface of revolution, means supporting said body from one end of said shaft for rotation with respect to said shaft, a flyer arm affixed to said shaft and extending radially and axially thereof into exterior overlapping relation with the surface of said body, means restraining said body against rotation whereby a thread passed through said shaft and out onto said arm will be wound up on said body upon rotation of said shaft and may be pulled off the end of said body remote from said arm, and an annular member affixed to said shaft and surrounding with close clearance the end of said body adjacent the shaft.
  • annular member includes adjacent said body a conical portion aligned with said flyer arm.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Looms (AREA)
US00230023A 1971-03-04 1972-02-28 Intermediate weft thread supply apparatus for looms Expired - Lifetime US3759300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH317471A CH538415A (de) 1971-03-04 1971-03-04 Fadenspeichereinrichtung für Textilmaschinen

Publications (1)

Publication Number Publication Date
US3759300A true US3759300A (en) 1973-09-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00230023A Expired - Lifetime US3759300A (en) 1971-03-04 1972-02-28 Intermediate weft thread supply apparatus for looms

Country Status (7)

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US (1) US3759300A (de)
AT (1) AT323090B (de)
CH (1) CH538415A (de)
DE (1) DE2111671C3 (de)
FR (1) FR2127934A5 (de)
GB (1) GB1379811A (de)
IT (1) IT949804B (de)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834635A (en) * 1972-04-28 1974-09-10 Sulzer Ag Method and apparatus for braking filamentary material unwound from a package
US3921925A (en) * 1972-02-26 1975-11-25 Sobrevin Thread feeder
US3926381A (en) * 1974-01-07 1975-12-16 Lawson Hemphill Yarn tensioning means
US3957217A (en) * 1975-06-25 1976-05-18 Wesco Industries Corporation Storage drum for intermediate yarn feeding device
US3971522A (en) * 1973-09-25 1976-07-27 Sulzer Brothers Limited Apparatus for storage of filamentary material
US4067508A (en) * 1975-11-10 1978-01-10 Aktiebolaget Iro Thread supply device for textile machines
US4132370A (en) * 1976-11-17 1979-01-02 Ruti-Te Strake B.V. Device for forming a supply bobbin from a thread advanced from a yarn supply
US4132368A (en) * 1976-10-28 1979-01-02 Sulzer Brothers Limited Drive for a yarn feeder for a textile machine
US4153214A (en) * 1977-09-29 1979-05-08 Savio & C. S.P.A. Device for controlling the tension in the yarn unwinding from a yarn carrying body
US4165049A (en) * 1977-01-17 1979-08-21 Ab Iro Thread storage and delivery apparatus
US4208017A (en) * 1977-01-31 1980-06-17 Yazaki Corporation Apparatus for temporary stock dispenser of wire
US4339091A (en) * 1977-10-25 1982-07-13 Industrie-Werke Karlsruhe Augsburg Aktiengesellschaft Device for depositing cable into a receiving container
US4351495A (en) * 1979-08-13 1982-09-28 Aktiebolaget Iro Thread-storage and delivery device for textile machines
US4429723A (en) 1980-10-15 1984-02-07 Roj Electrotex S.P.A. Yarn braking means for yarn feeding devices
US4574597A (en) * 1983-07-20 1986-03-11 Memminger Gmbh Yarn feeding apparatus, particularly for knitting machines
US4695002A (en) * 1985-05-08 1987-09-22 W. Schlafhorst & Co. Driven thread storage device
US4708299A (en) * 1985-08-10 1987-11-24 Sobrevin Societe De Brevets Industriels-Etablissement Thread delivery device
US4719947A (en) * 1983-10-07 1988-01-19 Roj Electrotex S.P.A. Rotor for weft feeding device for weaving looms
US5221059A (en) * 1991-01-30 1993-06-22 Basf Corporation Uniform yarn tensioning
EP1371594A1 (de) * 2002-06-11 2003-12-17 L.G.L. Electronics S.p.A. Schussfaden-Liefergerät für Webmaschinen
US9156390B2 (en) 2012-05-01 2015-10-13 Oilmatic Systems, Llc Bulk cooking oil distribution system
US20160023862A1 (en) * 2012-12-18 2016-01-28 Maschinenfabrik Niehoff Gmbh & Co. Kg Winding device for strand shaped winding material
US9392907B2 (en) 2012-05-01 2016-07-19 Michael Allora Bulk cooking oil distribution system
CN108486742A (zh) * 2018-04-04 2018-09-04 浙江三禾智能科技有限公司 导纱拘束叉、储纬器和织造方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378821A (en) 1980-06-27 1983-04-05 Nissan Motor Co., Ltd. Weft detaining device of shuttleless loom
JPS5891849A (ja) * 1981-11-25 1983-05-31 株式会社豊田中央研究所 ジエツトル−ム用緯糸貯留装置
DE3429219A1 (de) * 1984-08-08 1986-02-20 Sobrevin Société de brevets industriels-Etablissement, Vaduz Fadenspeicher- und liefervorrichtung
DE3562758D1 (en) * 1985-03-14 1988-06-23 Sulzer Ag Device for storing thread material in looms
IT231450Y1 (it) * 1993-07-19 1999-08-03 Lgl Electronics Spa Alimentatore di trama con piastra portamagneti dotata di scanalatura anulare fungente da elemento di centraggio e ritegno del tamburo e

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921925A (en) * 1972-02-26 1975-11-25 Sobrevin Thread feeder
US3834635A (en) * 1972-04-28 1974-09-10 Sulzer Ag Method and apparatus for braking filamentary material unwound from a package
US3971522A (en) * 1973-09-25 1976-07-27 Sulzer Brothers Limited Apparatus for storage of filamentary material
US3926381A (en) * 1974-01-07 1975-12-16 Lawson Hemphill Yarn tensioning means
US3957217A (en) * 1975-06-25 1976-05-18 Wesco Industries Corporation Storage drum for intermediate yarn feeding device
US4067508A (en) * 1975-11-10 1978-01-10 Aktiebolaget Iro Thread supply device for textile machines
US4132368A (en) * 1976-10-28 1979-01-02 Sulzer Brothers Limited Drive for a yarn feeder for a textile machine
US4132370A (en) * 1976-11-17 1979-01-02 Ruti-Te Strake B.V. Device for forming a supply bobbin from a thread advanced from a yarn supply
US4165049A (en) * 1977-01-17 1979-08-21 Ab Iro Thread storage and delivery apparatus
US4208017A (en) * 1977-01-31 1980-06-17 Yazaki Corporation Apparatus for temporary stock dispenser of wire
US4153214A (en) * 1977-09-29 1979-05-08 Savio & C. S.P.A. Device for controlling the tension in the yarn unwinding from a yarn carrying body
US4339091A (en) * 1977-10-25 1982-07-13 Industrie-Werke Karlsruhe Augsburg Aktiengesellschaft Device for depositing cable into a receiving container
US4351495A (en) * 1979-08-13 1982-09-28 Aktiebolaget Iro Thread-storage and delivery device for textile machines
US4429723A (en) 1980-10-15 1984-02-07 Roj Electrotex S.P.A. Yarn braking means for yarn feeding devices
US4574597A (en) * 1983-07-20 1986-03-11 Memminger Gmbh Yarn feeding apparatus, particularly for knitting machines
US4719947A (en) * 1983-10-07 1988-01-19 Roj Electrotex S.P.A. Rotor for weft feeding device for weaving looms
US4695002A (en) * 1985-05-08 1987-09-22 W. Schlafhorst & Co. Driven thread storage device
US4708299A (en) * 1985-08-10 1987-11-24 Sobrevin Societe De Brevets Industriels-Etablissement Thread delivery device
US5221059A (en) * 1991-01-30 1993-06-22 Basf Corporation Uniform yarn tensioning
EP1371594A1 (de) * 2002-06-11 2003-12-17 L.G.L. Electronics S.p.A. Schussfaden-Liefergerät für Webmaschinen
US9156390B2 (en) 2012-05-01 2015-10-13 Oilmatic Systems, Llc Bulk cooking oil distribution system
US9392907B2 (en) 2012-05-01 2016-07-19 Michael Allora Bulk cooking oil distribution system
US20160023862A1 (en) * 2012-12-18 2016-01-28 Maschinenfabrik Niehoff Gmbh & Co. Kg Winding device for strand shaped winding material
US9809413B2 (en) * 2012-12-18 2017-11-07 Maschinenfabrik Niehoff Gmbh & Co. Kg Winding device for strand shaped winding material
CN108486742A (zh) * 2018-04-04 2018-09-04 浙江三禾智能科技有限公司 导纱拘束叉、储纬器和织造方法

Also Published As

Publication number Publication date
GB1379811A (en) 1975-01-08
DE2111671C3 (de) 1974-06-27
AT323090B (de) 1975-06-25
FR2127934A5 (de) 1972-10-13
DE2111671A1 (de) 1972-09-21
CH538415A (de) 1973-06-30
DE2111671B2 (de) 1973-11-22
IT949804B (it) 1973-06-11

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