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US3490398A - Multiple-needle stitching or embroidering machine - Google Patents

Multiple-needle stitching or embroidering machine Download PDF

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Publication number
US3490398A
US3490398A US715664A US3490398DA US3490398A US 3490398 A US3490398 A US 3490398A US 715664 A US715664 A US 715664A US 3490398D A US3490398D A US 3490398DA US 3490398 A US3490398 A US 3490398A
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United States
Prior art keywords
movement
carriage
work
machine
hydraulic
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Expired - Lifetime
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US715664A
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English (en)
Inventor
Roland Anniel
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ROUBANE SOC
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ROUBANE SOC
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B11/00—Machines for sewing quilts or mattresses

Definitions

  • a jacquard-type tape has respective tracks serving as inputs to respective electrical pulse generators which, in turn, generate pulse trains representing direction and number of increments of movement to trigger, in a step-by-step relationship, respective electric motors connected with reversible valves which, in turn, control the respective hydraulic motors.
  • This invention relates to a novel stitching or embroidering machineof the multiple-needle type, and more particularly to arrangement in machines of this character with a view to form stitches or embroidery without any pattern limitation or exclusion.
  • the longitudinal movement of translation of the work or fabric is derived from the rotation of rollers carried by a frame structure adapted to move transversely or at right angles to the direction of translation, thus providing two types of movements, one longitudinally and the other transversely, by using corresponding cams driven from a power shaft.
  • the multiple-needle stitching or embroidering machine which comprises essentially a main frame structure, rotatably driven rollers for feeding the'material to be worked upon, a roller-supporting carriage movable at least on the transverse direction, i.e., across the feed movement of the work, is characterised in principle in that the rotation and the lateral reciprocation, and possibly the longitudinal reciprocating motion, are obtained by operating hydraulic actuators connected to a hydraulic generator through the medium of a highprecision valve responsive to a pulse generator controlled in turn by a programmer.
  • valve of each hydraulic actuator is driven from a step-by-step electric motor (of the intermittent controlled-rotation type) energized by a pulse generator respon sive to said programmer.
  • FIG. 1 is a fragmentary perspective view of an embroidering-machine, showing the various devices for producing the three movements necessary for stitching or embroidering;
  • FIG. 2 is a diagram showing the coordinates of a lockstitch
  • FIG. 3 is another diagram showing the use of the various movements for obtaining a closed-contour design
  • FIG. 4 illustrates a fragment of the programme punched tape
  • FIG. 5 is a diagram showing the main electrical or hydraulic relationships between the essential components of the machine.
  • the stitching or embroidering machine to which this invention is applicable comprises a main frame structure S supporting on the one hand a stationary transverse bridge Pt extending across the frame structure S havingmounted thereon, for vertical reciprocating sliding movement produced by drive means Mm; the needle bed Ps (provided in conventional systems with a large number of needles Ag, see US. Patent 1 No. 2,889,792), and on the other hand a movable structure supporting the feed rollers Rd and take-up roller C producing the movement of translation of, and tensioning, the textile or like web material to be stitched (denoted by the reference letter E in FIGS. 2 and 3).
  • this movable structure comprises two superposed carriages, i.e., a lower carriage A adapted to slide transversely (arrows v and x) in relation to, and carried by, the frame structure S, and an upper carriage B carried by,and adapted to slide at right angles to, said lower carriage A, i.e., parallel to the work-feed movement (arrows w and z).
  • This upper carriage B supports the rollers C for feeding the work in the longitudinal direction.
  • the directions of the movements performed by these various component elements are shown by corresponding arrows in FIG. 1.
  • Arrow y represents the rotation of roller C which causes the movement of translation of the work or web material to be stitched or embroidered, this translation being denoted by the arrow w;
  • Arrow w designates not only the work translation but but also the direction of travel of the upper carriage B which is the same as this translation;
  • Arrows v and x denote the transverse movements of the lower carriage A.
  • FIGS. 2, 3 and 5 These various directions of movement are also shown in FIGS. 2, 3 and 5, where they are identified with the same reference numerals.
  • a stitch such as P (FIG. 2) is identified by two rectangular coordinates of relative value: quantity and direction, in relation to an origin, such as the needle passage Pa.
  • the work must be moved both longitudinally (arrow w) by a length L, and transversely (arrow x) by a length T.
  • L and T may be infinitely small (notably in embroidery), for example 0.02" or 0.04.
  • the pitch p although very small, must be strictly constant. Since it amounts to the unit or increment of advance.
  • FIG. 3 illustrates the case of a design comprising a continuous line or a closed contour.
  • the three movements imparted to the work during the operation of the machine are advantageously obtained by using hydraulic motors or actuators MH (transverse movements of carriage A), MH (longitudinal movements of carriage B), MH (rotation of rollers C), fed from a hydraulic-pressure generator such as a pump Po, the motors or actuators driving the carriages and rollers according to the conventional kinematic chains without using cam means, including mechanisms such as gearing, rack-and-pinion drives, etc., provided that any slippage is positively precluded from the transmission means utilized.
  • the motor MH may be a simple hydraulic motor with a rotary output (see pages 194 ff. of Fluid Power, US. Government Printing Oflice, Washington, D.C. 1966) which may be directly connected to the rollers C to impart the rotary motion represented at y to these rollers.
  • the hydraulic motor MH may be of the reciprocating type, i.e., a piston-and-cylinder motor, or may be coupled to the wheels of the carriage B to provide the motion illustrated at B in FIG. 5 (arrows w and z). The same may be said for the motor MH, which drives the carriage A.
  • each actuator is regulated by a high-precision valve V V having its movable member driven from an electric motor ME; (ME ME having a rotor capable of rotating at a constant andextremely accurate angular rate when continuously energized but which is here operated by a pulse train and thus constitutes a step-by-step motor.
  • V V high-precision valve
  • ME ME having a rotor capable of rotating at a constant andextremely accurate angular rate when continuously energized but which is here operated by a pulse train and thus constitutes a step-by-step motor.
  • Each step-by-step electric motor is responsive to a pulse generator GI, (G1 G1 controlled as described hereinafter.
  • the electric motors may be coupled to the valves as described at page 406 ft. of Servomechanism Practice. McGraw-Hill Book Company, second edition, 1960.
  • I provide a different solution to this problem by resorting to a programmer utilizing a jacquard tape Bp (see FIG. 4) punched or perforated on several columns or longitudinal rows as a function of the desired pattern according to a predetermined code.
  • This tape is fed at a fractionated rate past a plurality or feelers or readout devices adapted to close corresponding electric contacts each time their pick-up member engages a perforation.
  • Each coordinate consists in turn of two ele ments, i.e., a direction of movement and a value denoting the magnitude or quantity of this movement.
  • one of the generators for instance G, can be'cau sed to deliver a pulse only if the tape Bp provides at least two kinds of information concerning the desired movement, one for the movement and its direction (positive or negative) and the other for the magnitude .or quantity of this movement (one or several pitches).
  • the tape Bp is fed by the distance corresponding to the relative spacing of two successive perforations SB (corresponding to pauses or stops) of an additional column of perforations.
  • the readout device scans successively or simultaneously the lines 1, 2, 3 and 4, and the analyzer CO incorporated in or associated with this device decodes these four lines and introduces the information resulting therefrom into electronic memories; these include a first memory MQ (or a plurality of similar memories) for the values, a memory mG for the movements of carriage A and either memory mG or memory mG for the other movements.
  • the signals delivered by the memory of memories MQ and those delivered by memory mG are fed to a switch C the function of which will be explained presently, the signals delivered from MQ and mG or mG being received by switch C or C
  • Each pulse generator such as G1 has associated therewith a counter CG for example, this counter having two (E -E and T T one for displaying the values and the other for displaying the direction of the movement concerned.
  • switch C ' (or C or C is to deliver to both sections of said counter the signals necessary for displaying the direction and the value of the movement concerned.
  • the tape shown in FIG. 4 is provided with two lines associated with each of the hydraulic motors to represent respectively direction and number of increments of motion, the direction being registered in the counters until the desired incremental displacement of the respective carriages of fabric-feed rollers is effective.
  • the machine operates in the manner of any multineedle embroidery machine such as is illustrated and described in U.S. Patent 2,889,792.
  • any stitch will be represented by an instruction to the motor MH to lift the needle bed, to the motors MH and MH to advance the respective carriages and rollers in one or the other direction and through a predetermined number of incremental units of displacement.
  • the memories retain the information for each stitch in the memory unit mG mG and M6 individual to the respective hydraulic motors.
  • a stitching or embroidering machine comprising:
  • a bridge spanning said main frame structure and provided with an array of needles vertically reciprocable thereon for movement toward and away from work passing beneath said bridge and adapted to be fed transversely to said array and said bridge in a work-advance direction;
  • a lower carriage mounted on said main frame structure and shiftable relatively thereto beneath 'said bridge in a direction transverse to said work-feed direction;
  • an upper carriage mounted on said lower carriage for movement in a direction transverse to the direction of displacement of said lower carriage and parallel to the work-feed direction;
  • drive means connected with at least one of said rollers for intermittently rotating same to shift said web relatively to said upper carriage in said work-feed direction;
  • a first hydraulic motor connected to said lower carriage for shifting same relatively to said main frame structure in a direction transverse to said work-feed direction;
  • a second hydraulic motor connected to said upper carriage for shifting same in said work-feed direction relative to said lower carriage;
  • At least one hydraulic network connecting said source with said first and second hydraulic motors; a said network including first and second electrically operable valve means respectively in circuit with said hydraulic motors for controlling same;
  • each of said valve means includes a hydraulic valve in series with the respectively hydraulic motor, and a respective electric motor operatively connected with said valve for rotating same, said electric motors being of a constant-speed type when continuously energized but being stepped by a respective one of said electric-pulse generators.
  • said programming means comprises a punched-tape and readout system including a mechanism for displacing a continuous punched tape having lines of perforations representing direction and degree of rotation of each of said hydraulic motors and readout means responsive to said perforations and connected with said pulse generators for energizing same in correspondence with the recorded information.
  • said programming means includes movement-selector means between said readout means and said pulse generator for directing the information sensed by said readout means to the corresponding pulse generator.
  • said pro- References Cited gramming means includes respective memories connected UNITED STATES PATENTS with each of said pulse generators and a further memory connected with both of said pulse generators and receiv- 2389792 6/1959 P K ing information from said readout means for temporarily 31072'081 1/1962? Mlhgan at storing said information and thereafter correspondingly 5 3208414 9/1963 R-eeber et energizing said pulse generators. gff et 7.
  • said mernories include at least one memory responsive to direc- ALFRED GUEST, Primary Examiner tion-of-movernent information and at least one further 10 memory responsive to amplitude-of-movement informa- US, Cl, X R

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US715664A 1967-09-21 1968-03-25 Multiple-needle stitching or embroidering machine Expired - Lifetime US3490398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR121739A FR1544182A (fr) 1967-09-21 1967-09-21 Machine à piquer ou broder à multiples aiguilles

Publications (1)

Publication Number Publication Date
US3490398A true US3490398A (en) 1970-01-20

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US715664A Expired - Lifetime US3490398A (en) 1967-09-21 1968-03-25 Multiple-needle stitching or embroidering machine

Country Status (6)

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US (1) US3490398A (fr)
BE (1) BE712612A (fr)
CH (1) CH478937A (fr)
DE (2) DE1760451A1 (fr)
FR (1) FR1544182A (fr)
NL (1) NL6807150A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845731A (en) * 1970-05-11 1974-11-05 Kokau Camera Labor Co Ltd Record controlled sewing machine
US3938453A (en) * 1973-07-30 1976-02-17 Omni Ray Ag Apparatus for advancing the feed frame of an automatic embroidery machine
US4186673A (en) * 1978-10-19 1980-02-05 Singer Company, The Material feed mechanism for sewing machines
US4408552A (en) * 1978-03-15 1983-10-11 Atsushige Kondo Apparatus for automatically producing comforters
EP0135262A1 (fr) * 1983-06-27 1985-03-27 Conrad Industries, Inc. Système pour produire des articles brodés
EP0184582A1 (fr) * 1982-09-16 1986-06-11 MECA S.a.s. di CAGNONI, LANDONI & C. Procédé et dispositif pour déplacer l'ouvrage dans deux directions sur une machine à ouatiner
US4669405A (en) * 1983-09-30 1987-06-02 Antonia Resta Meccanica S.d.f. di Resta Mario e Berardi Quilting machine with relatively moving cloth holder carriage and sewing head

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889792A (en) * 1954-06-08 1959-06-09 Spezialnahmaschinenwerk Limbac Multi-needle embroidery machine
US3072081A (en) * 1960-04-05 1963-01-08 Cluett Peabody & Co Inc Edge guide automatic sewing
US3208414A (en) * 1961-11-07 1965-09-28 Pfaff Ag G M Program-controlled automatic sewing apparatus
US3329109A (en) * 1964-10-05 1967-07-04 Res & Dev Co Inc Automatic program-controlled sewing machines
US3354350A (en) * 1964-10-27 1967-11-21 Ohio Crankshaft Co Two alternate conducting multivibrators powered by ac source

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889792A (en) * 1954-06-08 1959-06-09 Spezialnahmaschinenwerk Limbac Multi-needle embroidery machine
US3072081A (en) * 1960-04-05 1963-01-08 Cluett Peabody & Co Inc Edge guide automatic sewing
US3208414A (en) * 1961-11-07 1965-09-28 Pfaff Ag G M Program-controlled automatic sewing apparatus
US3329109A (en) * 1964-10-05 1967-07-04 Res & Dev Co Inc Automatic program-controlled sewing machines
US3354350A (en) * 1964-10-27 1967-11-21 Ohio Crankshaft Co Two alternate conducting multivibrators powered by ac source

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845731A (en) * 1970-05-11 1974-11-05 Kokau Camera Labor Co Ltd Record controlled sewing machine
US3938453A (en) * 1973-07-30 1976-02-17 Omni Ray Ag Apparatus for advancing the feed frame of an automatic embroidery machine
US4408552A (en) * 1978-03-15 1983-10-11 Atsushige Kondo Apparatus for automatically producing comforters
US4186673A (en) * 1978-10-19 1980-02-05 Singer Company, The Material feed mechanism for sewing machines
EP0184582A1 (fr) * 1982-09-16 1986-06-11 MECA S.a.s. di CAGNONI, LANDONI & C. Procédé et dispositif pour déplacer l'ouvrage dans deux directions sur une machine à ouatiner
EP0135262A1 (fr) * 1983-06-27 1985-03-27 Conrad Industries, Inc. Système pour produire des articles brodés
US4669405A (en) * 1983-09-30 1987-06-02 Antonia Resta Meccanica S.d.f. di Resta Mario e Berardi Quilting machine with relatively moving cloth holder carriage and sewing head

Also Published As

Publication number Publication date
CH478937A (fr) 1969-09-30
FR1544182A (fr) 1968-10-31
NL6807150A (fr) 1969-03-25
BE712612A (fr) 1968-07-31
DE1760451A1 (de) 1971-12-23
DE6602801U (de) 1969-06-19

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