US3748914A - Tufting machines - Google Patents

Tufting machines Download PDF

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Publication number
US3748914A
US3748914A US00171234A US3748914DA US3748914A US 3748914 A US3748914 A US 3748914A US 00171234 A US00171234 A US 00171234A US 3748914D A US3748914D A US 3748914DA US 3748914 A US3748914 A US 3748914A
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US
United States
Prior art keywords
drive
adjustment
needle
plate
link means
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
Application number
US00171234A
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English (en)
Inventor
R Parsons
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.)
Singer Co Ltd
Singer Co
Original Assignee
Singer Co
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 Singer Co filed Critical Singer Co
Application granted granted Critical
Publication of US3748914A publication Critical patent/US3748914A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/16—Arrangements or devices for manipulating threads
    • D05C15/20—Arrangements or devices, e.g. needles, for inserting loops; Driving mechanisms therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18184—Crank, pitman, and lever

Definitions

  • the needle-stroke drivetransmission mechanism is adjustable to provide a facility for varying the length of the stroke of the needle, such mechanism comprising an oscillating drive-input member, an adjustmemt-plate mounted for limited pivotal motion about a fixed axis and connected with the said drive-input member for movement thereby, and a connecting-link means coupling together the adjustment plate and the needle-stroke shaft, that end of the connecting-link means secured to the adjustment-plate being variable as to position upon the adjustment plate to provide the adjustment in needle stroke.
  • the invention concerns tufting machines and has more particular reference to a mechanism for adjusting the needle-stroke of -such a machine.
  • a drivetransmission mechanism as aforesaid comprises a drive-input member adapted to be oscillated in cyclical manner, an adjustment-plate mounted for pivotal motion about a fixed axis and drivingly connected with such drive-input member, an arcuate formation in such adjustment-plate, and a connecting-link means pivotally mounted on such plate at a selected position in the said arcuate formation, the said connecting-link means being pivotally coupled tothe needle-stroke shaft and the pivot axis of the coupling between the connectinglink means and the needle-stroke shaft lying at the centre of curvature of the arcuate formation, at a relative dispostion of parts appropriate to an extreme position of movement of the mechanism.
  • the adjustment-plate comprises a generally L-shaped member pivotally mounted for motion about a fixed axis passing approximately through the angle thereof, the drive-input member being connected to the remote end of one limb of the adjustment-plate and the arcuate formation being provided in the vertical limb thereof.
  • A'n indicator scale will usually be provided adjacent the arcuate formation.
  • the arcuate formation will preferably comprise a slot in the body of a member, alternatively a suitably curved bar may be provided upon which a bearing for the conne'cting-link means is adjustably slidable, or a curved guide may be provided on an edge of a platelike body.
  • an arcuate lineof holes is provided in an adjustment-plate and with a selected one or more of which a bearing for the connecting link means is engageable.
  • FIG. 1 is a perspective view of an adjustable needle stroke mechanism for a tufting machine
  • FIG. 2 is a side elevation of the mechanism of FIG. 1, one of the side-plates having been omitted for ease of illustration, the relative disposition of parts shown being consistent with a retracted position of the tufting needles; 1
  • FIG. 3 is a side elevation, partly in section of the mechanism shown in FIG. 2;
  • FIG. 4 is a section on line XX of FIG. 2.
  • an adjustable needlestroke mechanism for a tufting machine comprises a yoke 11 mounted on the machine main-shaft 12 by an eccentric 13, a generally L-shaped adjustment-plate 14 to which said yoke is freely connected adjacent to the remote end of one limb thereof and which is itself pivotally mounted for motion about a fixed axis, passing substantially through the angle thereof, and a connecting-link means 16 secured, at one end, at a selected position in an arcuate adjustment-slot 17 formed in the vertical limb of the plate 14 and, at the other end, to a radially directed lug 18a formed integrally with a collar l8 clamped to the needle-stroke shaft 19.
  • the mechanism is supported by and between spaced side-plates 21, FIG. 2, such plates carrying bearings 22 for the eccentric l3 and bearings 23 for the needlestroke shaft 19.
  • the side-plates also receive a pin 24 which defines the pivot axis about which the adjustment-plate 14 moves.
  • the connecting-link means 16 comprises two elongate plates l6a arranged in spaced parallel disposition, the plates extending one at each side of the adjustmentplate 14 and of the lug 18a of the collar, the ends of such plates being freely pivotally connected with the lug and the adjustment-plate by respective pins 26,27, needle bearings 28 being provided between the lug and pin 26 andbetween the elongate plates 16a and pin 27, and suitable means being provided for securing pin 27 at a selected position in the slot.
  • each link-plate 16a between the pivot axes thereof, is equal to the radius of curvature of the arcuate slot 17 in the adjustment-plate 14, the centre of curvature of such slot 17 coinciding with the axis of pivot pin 26 in a relative disposition of parts appropriate to the bottom-centre.position of the needles driven by the. mechanism.
  • a variation in needle-stroke will be attained by adjusting the position of pin 27 in slot 17 and will usually be ac.-incorporatedd by an adjustment in the position of the needle-plate.
  • the arcuate extent of the oscillation imparted to the needle-stroke shaft 19 on rotation of the main-shaft, and thus the extent of the needle-stroke will vary according to the position of pin 27 in the slot, a maximum length of stroke of the needle beingattained with pin 27 in one extreme position in the arcuate slot and a minimum length of stroke resulting from the location of the pin at the opposite end of such slot, the bottomcentre position of the needle remaining the same irrespective of the actual needle-stroke, and the timing of the needle-stroke thus being unaffectedby the adjustment.
  • the actual adjustment will normally be made with the needles in a bottom-centre position, and for convenience a scale 29 is provided adjacent the slot to indicate, quantitatively, the position of the pin therein.
  • a drive transmission mechanism for the needlestroke shaft of a tufting machine comprising a drive input member, means for oscillating, said drive input.
  • an. adjustment-plate mounted for pivotal motion about a fixed axis and drivingly connected with said drive inputmember for imparting a cyclical motion to said adjustment-plate, said adjustment-plate having an arcuate formation therein, a connecting-link means having one end.
  • connecting-link means being pivotally coupled to the needle-stroke shaft with the pivot axis of the coupling between said connecting-link means and the needie-stroke shaft lying at the center of curvature of said arcuate formation at a relative disposition thereof at one extreme position of movement of the mechanism such that said one extreme position of movement of the mechanism remains constant for different adjusted positions of said connecting-link means in said arcuate formation.
  • a drive-transmission mechanism as claimed in claim 1 further including spaced side-plates between which the adjustment-plate and the connecting-link means are disposed, the said adjustment-plate being pivotally supported from such side-plates.
  • a drive-transmission mechanism as claimed in claim 1 further including a linear scale adjacent the arcuate formation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Transmission Devices (AREA)
  • Nonwoven Fabrics (AREA)
  • Sewing Machines And Sewing (AREA)
US00171234A 1970-08-22 1971-08-12 Tufting machines Expired - Lifetime US3748914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4055970 1970-08-22

Publications (1)

Publication Number Publication Date
US3748914A true US3748914A (en) 1973-07-31

Family

ID=10415502

Family Applications (1)

Application Number Title Priority Date Filing Date
US00171234A Expired - Lifetime US3748914A (en) 1970-08-22 1971-08-12 Tufting machines

Country Status (8)

Country Link
US (1) US3748914A (ref)
BE (1) BE771624A (ref)
CA (1) CA949814A (ref)
DE (1) DE2142063A1 (ref)
FR (1) FR2104515A5 (ref)
GB (1) GB1333242A (ref)
NL (1) NL7111510A (ref)
ZA (1) ZA715165B (ref)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830174A (en) * 1973-03-30 1974-08-20 Pickering Edgar Ltd Tufting machines
US4485752A (en) * 1980-03-21 1984-12-04 Maschinenfabrik Carl Zangs Aktiengesellschaft Adjustable needle bar crank drive
US4520682A (en) * 1981-10-29 1985-06-04 Mid-West Automation Inc. Reciprocating rectilinear motion apparatus
US4834005A (en) * 1987-09-08 1989-05-30 Spencer Wright Industries, Inc. Tufting machine adjustable stroke mechanism
US4860673A (en) * 1985-12-10 1989-08-29 Tufting And Textile Systems Limited Tufting machines
US6131474A (en) * 1997-11-06 2000-10-17 Albany Magento Equipment, Inc. Windshield wiper drive train

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328718A (en) * 1980-08-26 1982-05-11 Emerson Electric Co. Variable oscillator drive mechanism
GB2125447B (en) * 1982-08-13 1986-10-15 Spencer Wright Ind Inc Tufting machines
AT385527B (de) * 1983-04-18 1988-04-11 Fehrer Textilmasch Vorrichtung zum nadeln von warenbahnen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413832A (en) * 1946-02-25 1947-01-07 Oscar C Kay Doffer comb drive
US2489513A (en) * 1946-03-13 1949-11-29 High Speed Machines Machine for making pile fabrics
US3108553A (en) * 1960-10-03 1963-10-29 Singer Cobble Inc Multiple pile height tufting machine
US3494077A (en) * 1967-06-23 1970-02-10 Rogers & Clarke Mfg Co Machine tool having a variable-stroke drive
GB1222792A (en) * 1969-02-18 1971-02-17 Hepworth Iron Company Engineer Improvements in or relating to machine tool gear boxes
US3593922A (en) * 1970-02-27 1971-07-20 George M Standal Sprinkler

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413832A (en) * 1946-02-25 1947-01-07 Oscar C Kay Doffer comb drive
US2489513A (en) * 1946-03-13 1949-11-29 High Speed Machines Machine for making pile fabrics
US3108553A (en) * 1960-10-03 1963-10-29 Singer Cobble Inc Multiple pile height tufting machine
US3494077A (en) * 1967-06-23 1970-02-10 Rogers & Clarke Mfg Co Machine tool having a variable-stroke drive
GB1222792A (en) * 1969-02-18 1971-02-17 Hepworth Iron Company Engineer Improvements in or relating to machine tool gear boxes
US3593922A (en) * 1970-02-27 1971-07-20 George M Standal Sprinkler

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830174A (en) * 1973-03-30 1974-08-20 Pickering Edgar Ltd Tufting machines
US4485752A (en) * 1980-03-21 1984-12-04 Maschinenfabrik Carl Zangs Aktiengesellschaft Adjustable needle bar crank drive
US4520682A (en) * 1981-10-29 1985-06-04 Mid-West Automation Inc. Reciprocating rectilinear motion apparatus
US4860673A (en) * 1985-12-10 1989-08-29 Tufting And Textile Systems Limited Tufting machines
US4834005A (en) * 1987-09-08 1989-05-30 Spencer Wright Industries, Inc. Tufting machine adjustable stroke mechanism
US6131474A (en) * 1997-11-06 2000-10-17 Albany Magento Equipment, Inc. Windshield wiper drive train

Also Published As

Publication number Publication date
GB1333242A (en) 1973-10-10
FR2104515A5 (ref) 1972-04-14
NL7111510A (ref) 1972-02-24
ZA715165B (en) 1972-04-26
CA949814A (en) 1974-06-25
AU3201671A (en) 1973-02-08
BE771624A (fr) 1971-12-31
DE2142063A1 (de) 1972-03-30

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