US3921925A - Thread feeder - Google Patents

Thread feeder Download PDF

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Publication number
US3921925A
US3921925A US516504A US51650474A US3921925A US 3921925 A US3921925 A US 3921925A US 516504 A US516504 A US 516504A US 51650474 A US51650474 A US 51650474A US 3921925 A US3921925 A US 3921925A
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United States
Prior art keywords
cup
thread
thread feeder
housing
extremity
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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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US516504A
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Alberto Gustavo Sarfati
Giuseppe Vischiani
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Sobrevin Societe de Brevets Industriels
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Sobrevin Societe de Brevets Industriels
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Priority claimed from DE2209215A external-priority patent/DE2209215A1/en
Application filed by Sobrevin Societe de Brevets Industriels filed Critical Sobrevin Societe de Brevets Industriels
Priority to US516504A priority Critical patent/US3921925A/en
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Publication of US3921925A publication Critical patent/US3921925A/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • 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

  • a thread feeder with a polygonal core designed to store a thread supply in the form of a multiplicity of turns, is mounted on a motor shaft and surrounded by a cup whose rim forms a discharge edge for the unwinding thread.
  • the core is provided near the cup bottom with a ramp for the guidance of the thread which is fed in tangentially through the motor shaft: the cup may be secured to that shaft for joint rotation or may be freely journaled thereon, being held in the latter instance against rotary entrainment by suitable means such as an eccentric weight.
  • a braking ring on the motor housing confronts the cup rim and carries bristles engaging the exiting thread.
  • Our present invention relates to a thread feeder of the type wherein a polygonal body, designed to store a supply of thread in the form of a multiplicity of turns, is mounted on a motor shaft in the vicinity of guide means for directing the oncoming thread to the periphery of that body and from the latter to its ultimate destination.
  • the object of our invention is to provide a simple and efficient construction of this type having means for insuring a smooth unwinding of the thread from the polygonal body.
  • FIG. 1 is an elevational view, partly in section, of a thread feeder embodying our invention
  • FIG. 2 is a cross-sectional view taken on the line II II of FIG. 1;
  • FIG. 3 is a view similar to FIG. 1, illustrating a modification.
  • the thread feeder shown in FIGS. 1 and 2 comprises a stationary motor housing 1 provided with an annular flange 2.
  • a motor shaft 3, projecting from the housing, carries a cup 4 which is secured to it by a screw 7 and is open toward the housing 1, the interior of this cup accommodating a polygonal body with four axially extending rods 8 ll defining the corners of a square.
  • the rods are provided with recesses 12 by which they are fitted onto a peripheral flange 13 of a disk 13 adjoining the bottom 6 of the cup 4.
  • Flange 13' has a sloping face 15, forming a thread-guiding ramp, which merges into a face 15 lying in a plane perpendicular to the shaft axis.
  • Bottom 6 of cup 4 is provided with an eccentric eye 14 traversed by a thread F entering the chamber 5, this thread being fed in through an axial bore 3' of shaft 3 which continues through the screw 7 to let the thread emerge at the outer surface of the cup bottom.
  • the thread is then wound in a multiplicity of turns, but in a single layer, on the prismatic array of rods 8 11 which it approaches and leaves in a substantially tangential direction, exiting at a gap 16 formed between the rim 17 of cup 4 and a stationary braking ring 19 carrying a set of bristles 18 which sweep the edge of the rotating rim.
  • Ring 19 has internal threads 20 engaging external threads 21 on a collar 22 which forms an extension of housing flange 2.
  • This threaded engagement enables an axial adjustment of the position of ring 19 relative to housing 1, and therefore of the width of the exit gap 16, thus permitting selection of the most effective braking force exerted by the bristles 18 upon the unwinding thread; such adjustment also allows compensation of bristle wear during use.
  • cup 4 could be made of transparent material to facilitate observation of the winding and unwinding of the thread.
  • an eccentric weight 24 is secured to the cup at its inner wall surface. Such a weight, of course, will be effective to hold the cup in position only if the shaft axis is more or less horizontal rather than vertical as illustrated in the drawing.
  • a thread feeder comprising:
  • a motor provided with a stationary housing centered on an axis and a shaft having an extremity projecting from said housing along said axis;
  • a cup carried on said extremity, provided with a rim extending axially of said extremity for substantially the entire length of said body whereby said body is spacedly enveloped by said cup;
  • eccentric guide means near the bottom of said cup for thread to be wound upon said body said guide means being connected with said extremity;
  • stationary braking means confronting the rim of said cup and defining therewith an exit gap for engaging thread unwinding from said body.
  • a thread feeder as defined in claim 4 wherein said cup is secured to said shaft for rotation therewith said guide means forming an eye in the bottom of said cup.
  • a thread feeder as defined in claim 4 wherein said cup is freely journaled on said extremity and is provided with stop means preventing its rotary entrainment by said shaft, said guide means forming a generally radial channel in said disk communicating with said bore.
  • said braking means comprises a ring on said housing provided with thread-engaging bristles, said cup being open toward said housing.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

A thread feeder with a polygonal core, designed to store a thread supply in the form of a multiplicity of turns, is mounted on a motor shaft and surrounded by a cup whose rim forms a discharge edge for the unwinding thread. The core is provided near the cup bottom with a ramp for the guidance of the thread which is fed in tangentially through the motor shaft; the cup may be secured to that shaft for joint rotation or may be freely journaled thereon, being held in the latter instance against rotary entrainment by suitable means such as an eccentric weight. A braking ring on the motor housing confronts the cup rim and carries bristles engaging the exiting thread.

Description

United States Patent Sarfati et al.
[ 1 3 ,921,925 1 1 Nov. 25, 1975 THREAD FEEDER Inventors: Alberto Gustavo Sarfati; Giuseppe Vischiani, both of Como, Italy Related U.S. Application Data Continuation of Ser. No. 335,918, Feb. 26. 1973, abandoned.
[30] Foreign Application Priority Data Feb. 26, 1972 Germany 2209215 References Cited UNITED STATES PATENTS 1/1970 Muhlhausler 242/4701 3.637.149 l/1972 Frei 242/47.12 X 3,737,112 6/1975 Tellerman et al.. 242/4701 3,759,300 9/1973 Pfarrwaller 242/4701 X 3.791.598 2/1974 Vischiani et a1 242/47.12
Primary Examiner-Stanley N. Gilreath Attorney, Agent, or Firm-Ernest G. Montague; Karl F. Ross; Herbert Dubno [57] ABSTRACT A thread feeder with a polygonal core, designed to store a thread supply in the form of a multiplicity of turns, is mounted on a motor shaft and surrounded by a cup whose rim forms a discharge edge for the unwinding thread. The core is provided near the cup bottom with a ramp for the guidance of the thread which is fed in tangentially through the motor shaft: the cup may be secured to that shaft for joint rotation or may be freely journaled thereon, being held in the latter instance against rotary entrainment by suitable means such as an eccentric weight. A braking ring on the motor housing confronts the cup rim and carries bristles engaging the exiting thread.
10 Claims, 3 Drawing Figures U.S. Patent N0v.25, 1975 Sheet 1 of3 3,921,925
US. Patent Nov .25, 1975 Sheet2of3 3,921,925
Fig. 2
US. Patent Nov. 25, 1975 Sheet3of3 3,921,925
Fig. 3
THREAD FEEDER This is a continuation of application Ser. No. 335,918, filed Feb. 26, 1973, now abandoned.
Our present invention relates to a thread feeder of the type wherein a polygonal body, designed to store a supply of thread in the form of a multiplicity of turns, is mounted on a motor shaft in the vicinity of guide means for directing the oncoming thread to the periphery of that body and from the latter to its ultimate destination.
The object of our invention is to provide a simple and efficient construction of this type having means for insuring a smooth unwinding of the thread from the polygonal body.
This object is realized, pursuant to our present invention, by the provision of a cup carried on an extremity of the motor shaft which projects from a stationary motor housing, the thread being wound upon that body by eccentric guide means near the bottom of the cut and being unwound through an exit gap defined by the rim of the cup and confronting stationary braking means, advantageously a ring mounted on the housing and provided with thread-engaging bristles.
The above and other features of our invention will be described in detail hereinafter with reference to the accompanying drawing in which:
FIG. 1 is an elevational view, partly in section, of a thread feeder embodying our invention;
FIG. 2 is a cross-sectional view taken on the line II II of FIG. 1; and
FIG. 3 is a view similar to FIG. 1, illustrating a modification.
The thread feeder shown in FIGS. 1 and 2 comprises a stationary motor housing 1 provided with an annular flange 2. A motor shaft 3, projecting from the housing, carries a cup 4 which is secured to it by a screw 7 and is open toward the housing 1, the interior of this cup accommodating a polygonal body with four axially extending rods 8 ll defining the corners of a square. The rods are provided with recesses 12 by which they are fitted onto a peripheral flange 13 of a disk 13 adjoining the bottom 6 of the cup 4. Flange 13' has a sloping face 15, forming a thread-guiding ramp, which merges into a face 15 lying in a plane perpendicular to the shaft axis. Bottom 6 of cup 4 is provided with an eccentric eye 14 traversed by a thread F entering the chamber 5, this thread being fed in through an axial bore 3' of shaft 3 which continues through the screw 7 to let the thread emerge at the outer surface of the cup bottom. The thread is then wound in a multiplicity of turns, but in a single layer, on the prismatic array of rods 8 11 which it approaches and leaves in a substantially tangential direction, exiting at a gap 16 formed between the rim 17 of cup 4 and a stationary braking ring 19 carrying a set of bristles 18 which sweep the edge of the rotating rim. Ring 19 has internal threads 20 engaging external threads 21 on a collar 22 which forms an extension of housing flange 2. This threaded engagement enables an axial adjustment of the position of ring 19 relative to housing 1, and therefore of the width of the exit gap 16, thus permitting selection of the most effective braking force exerted by the bristles 18 upon the unwinding thread; such adjustment also allows compensation of bristle wear during use.
If desired, cup 4 could be made of transparent material to facilitate observation of the winding and unwinding of the thread.
In the modified device of FIG. 3 the rotating cup 4 5 has been replaced by a cup 4' freely journaled on the projecting extremity of shaft 3 by a ball bearing 23 seated in its bottom 6. Guide disk 13 is integral with a plate 25 keyed at 26 to the shaft 3, this plate being formed with a generally radial bore 27 communicating with the axial bore 3 of the shaft and terminating in an elbow 14 from which the incoming thread is guided onto the ramp surface of disk 13. A hole 28 in elbow 14' can be aligned with an aperture 29 in the cup rim 14 to facilitate threading.
In order to prevent rotary entrainment of the cup 4 by the shaft 3, an eccentric weight 24 is secured to the cup at its inner wall surface. Such a weight, of course, will be effective to hold the cup in position only if the shaft axis is more or less horizontal rather than vertical as illustrated in the drawing.
We claim:
1. A thread feeder comprising:
a motor provided with a stationary housing centered on an axis and a shaft having an extremity projecting from said housing along said axis;
a polygonal body centered on said axis and mounted on said housing;
a cup carried on said extremity, provided with a rim extending axially of said extremity for substantially the entire length of said body whereby said body is spacedly enveloped by said cup;
eccentric guide means near the bottom of said cup for thread to be wound upon said body said guide means being connected with said extremity; and
stationary braking means confronting the rim of said cup and defining therewith an exit gap for engaging thread unwinding from said body.
2. A thread feeder as defined in claim 1 wherein said shaft is provided with an axial bore communicating with said guide means and forming an inlet for said thread.
3. A thread feeder as defined in claim 2 wherein said guide means includes a disk with a ramp surface carried on said extremity within said cup adjacent the bottom thereof.
4. A thread feeder as defined in claim 3 wherein said disk is rigid with said body.
5. A thread feeder as defined in claim 4 wherein said cup is secured to said shaft for rotation therewith said guide means forming an eye in the bottom of said cup.
6. A thread feeder as defined in claim 4 wherein said cup is freely journaled on said extremity and is provided with stop means preventing its rotary entrainment by said shaft, said guide means forming a generally radial channel in said disk communicating with said bore.
7. A thread feeder as defined in claim 6 wherein said stop means comprises an eccentric weight secured to said cup.
8. A thread feeder as defined in claim 1 wherein said braking means comprises a ring on said housing provided with thread-engaging bristles, said cup being open toward said housing.
9. A thread feeder as defined in claim 8 wherein said ring is axially adjustable with reference to said housing.
10. A thread feeder as defined in claim 9 wherein said housing is provided with an externally threaded annular flange, said ring having internal threads matingly engaging said flange.

Claims (10)

1. A thread feeder comprising: a motor provided with a stationary housing centered on an axis and a shaft having an extremity projecting from said housing along said axis; polygonal body centered on said axis and mounted on said housing; a cup carried on said extremity, provided with a rim extending axially of said extremity for substantially the entire length of said body whereby said body is spacedly enveloped by said cup; eccentric guide means near the bottom of said cup for thread to be wound upon said body said guide means being connected with said extremity; and stationary braking means confronting the rim of said cup and defining therewith an exit gap for engaging thread unwinding from said body.
2. A thread feeder as defined in claim 1 wherein said shaft is provided with an axial bore communicating with said guide means and forming an inlet for said thread.
3. A thread feeder as defined in claim 2 wherein said guide means includes a disk with a ramp surface carried on said extremity within said cup adjacent the bottom thereof.
4. A thread feeder as defined in claim 3 wherein said disk is rigid with said body.
5. A thread feeder as defined in claim 4 wherein said cup is secured to said shaft for rotation therewith said guide means forming an eye in the bottom of said cup.
6. A thread feeder as defined in claim 4 wherein said cup is freely journaled on said extremity and is provided with stop means preventing its rotary entrainment by said shaft, said guide means forming a generally radial channel in said disk communicating with said bore.
7. A thread feeder as defined in claim 6 wherein said stop means comprises an eccentric weight secured to said cup.
8. A thread feeder as defined in claim 1 wherein said braking means comprises a ring on said housing provided with thread-engaging bristles, said cup being open toward said housing.
9. A thread feeder as defined in claim 8 wherein said ring is axially adjustable with reference to said housing.
10. A thread feeder as defined in claim 9 wherein said housing is provided with an externally threaded annular flange, said ring having internal threads matingly engaging said flange.
US516504A 1972-02-26 1974-10-21 Thread feeder Expired - Lifetime US3921925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2209215A DE2209215A1 (en) 1972-02-26 1972-02-26 DELIVERY DEVICE
US33591873A 1973-02-26 1973-02-26
US516504A US3921925A (en) 1972-02-26 1974-10-21 Thread feeder

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028911A (en) * 1974-12-28 1977-06-14 Firma Gustav Memminger Verfahrenstechnik Fuer Die Maschenindustrie Inclined pin wheel for yarn storage drum
US4106712A (en) * 1976-03-04 1978-08-15 Savio E C. S.P.A. Device for controlling the tension of yarn unwinding from a yarn supporting body
US4121782A (en) * 1976-05-22 1978-10-24 Alan Shelton Limited Yarn storage feeders
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
US4189780A (en) * 1975-08-25 1980-02-19 Ing. C. Olivetti & C., S.P.A. Electronic computer with automatic decimal point setting means
US4339091A (en) * 1977-10-25 1982-07-13 Industrie-Werke Karlsruhe Augsburg Aktiengesellschaft Device for depositing cable into a receiving container
US4349161A (en) * 1978-09-27 1982-09-14 Aktiebolaget Iro Thread delivery device with improved thread-storage drum, particularly for sticky yarns
US4353526A (en) * 1978-08-10 1982-10-12 Ulrich Weidmann Electrical drive apparatus for a vertically displaceable blackboard
US4708299A (en) * 1985-08-10 1987-11-24 Sobrevin Societe De Brevets Industriels-Etablissement Thread delivery device
US4766937A (en) * 1984-09-05 1988-08-30 Nissan Motor Co., Ltd. Weft storage device
WO2019244071A1 (en) * 2018-06-20 2019-12-26 Vandewiele Nv Yarn storage device for a yarn processing machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490710A (en) * 1967-07-31 1970-01-20 Fouquet Werk Frauz & Planck Automatic thread delivery device for textile machines
US3637149A (en) * 1969-09-20 1972-01-25 Karl Frei Thread-storing device for temporarily storing a thread
US3737112A (en) * 1971-04-23 1973-06-05 Wesco Industries Corp Yarn feeding and storage device for textile producing machine
US3759300A (en) * 1971-03-04 1973-09-18 Sulzer Ag Intermediate weft thread supply apparatus for looms
US3791598A (en) * 1970-07-18 1974-02-12 Sobrevin Thread delivery device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490710A (en) * 1967-07-31 1970-01-20 Fouquet Werk Frauz & Planck Automatic thread delivery device for textile machines
US3637149A (en) * 1969-09-20 1972-01-25 Karl Frei Thread-storing device for temporarily storing a thread
US3791598A (en) * 1970-07-18 1974-02-12 Sobrevin Thread delivery device
US3759300A (en) * 1971-03-04 1973-09-18 Sulzer Ag Intermediate weft thread supply apparatus for looms
US3737112A (en) * 1971-04-23 1973-06-05 Wesco Industries Corp Yarn feeding and storage device for textile producing machine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028911A (en) * 1974-12-28 1977-06-14 Firma Gustav Memminger Verfahrenstechnik Fuer Die Maschenindustrie Inclined pin wheel for yarn storage drum
US4189780A (en) * 1975-08-25 1980-02-19 Ing. C. Olivetti & C., S.P.A. Electronic computer with automatic decimal point setting means
US4106712A (en) * 1976-03-04 1978-08-15 Savio E C. S.P.A. Device for controlling the tension of yarn unwinding from a yarn supporting body
US4121782A (en) * 1976-05-22 1978-10-24 Alan Shelton Limited Yarn storage feeders
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
US4353526A (en) * 1978-08-10 1982-10-12 Ulrich Weidmann Electrical drive apparatus for a vertically displaceable blackboard
US4349161A (en) * 1978-09-27 1982-09-14 Aktiebolaget Iro Thread delivery device with improved thread-storage drum, particularly for sticky yarns
US4766937A (en) * 1984-09-05 1988-08-30 Nissan Motor Co., Ltd. Weft storage device
US4708299A (en) * 1985-08-10 1987-11-24 Sobrevin Societe De Brevets Industriels-Etablissement Thread delivery device
WO2019244071A1 (en) * 2018-06-20 2019-12-26 Vandewiele Nv Yarn storage device for a yarn processing machine
BE1026405B1 (en) * 2018-06-20 2020-01-30 Nv Michel Van De Wiele YARN STOCK DEVICE FOR A YARN PROCESSING MACHINE
CN112334609A (en) * 2018-06-20 2021-02-05 范德威尔公司 Yarn storage device for yarn processing machine
US11661303B2 (en) 2018-06-20 2023-05-30 Vandewiele Nv Yarn storage device for a yarn processing machine

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