US3656398A - Device for transferring the bobbin of a braiding machine between two adjacent flyer wheels - Google Patents

Device for transferring the bobbin of a braiding machine between two adjacent flyer wheels Download PDF

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Publication number
US3656398A
US3656398A US74409A US3656398DA US3656398A US 3656398 A US3656398 A US 3656398A US 74409 A US74409 A US 74409A US 3656398D A US3656398D A US 3656398DA US 3656398 A US3656398 A US 3656398A
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US
United States
Prior art keywords
bobbin
flyer
rotation
wheels
gripper arm
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
US74409A
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English (en)
Inventor
Reiner Strangfeld
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.)
August Herzog Maschinenfabrik
Original Assignee
August Herzog Maschinenfabrik
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 DE19691947976 external-priority patent/DE1947976C/de
Application filed by August Herzog Maschinenfabrik filed Critical August Herzog Maschinenfabrik
Application granted granted Critical
Publication of US3656398A publication Critical patent/US3656398A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C3/00—Braiding or lacing machines
    • D04C3/02—Braiding or lacing machines with spool carriers guided by track plates or by bobbin heads exclusively
    • D04C3/14—Spool carriers
    • D04C3/18—Spool carriers for vertical spools
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C3/00—Braiding or lacing machines
    • D04C3/02—Braiding or lacing machines with spool carriers guided by track plates or by bobbin heads exclusively
    • D04C3/38—Driving-gear; Starting or stopping mechanisms

Definitions

  • ABSTRACT A device for transferring the bobbin of a braiding machine between two adjacent flyer wheels of the type in which a double gripper arm is provided for retaining the bobbin, which double gripper arm has retaining claws which engage behind projections arranged on each of the flyer wheels and in which the longitudinal axis of which gripper arm extends through the axis of the bobbin, in which the surfaces of the retaining claws which engage behind the projections are curved to form a radius which corresponds to the radius of turn of these surfaces about the longitudinal axis of the bobbin, the double gripper arm being rotatable relative to the flyer wheel carrying the bobbin, such that one retaining claw engages with one projection, the rotation effecting the locking or unlocking being controllable such that the transfer region extends across a specific region of the path in advance and after the point of transfer with a
  • the present invention relates to a device for transferring the bobbin of a braiding machine between two adjacent flyer wheels in which a double gripper arm is provided on the bobbin for the purpose of retaining it.
  • the double gripper arm has retaining claws which engage and cooperate with projections arranged on the flyer wheels.
  • the longitudinal axis of which gripper arm also extends through the axis of the bobbin.
  • the surfaces of the retaining claws which engage with the projections are curved to form a radius which corresponds to the turn radius of the projections about the axis of the flyer wheels. Furthermore, stops are provided at the point of transfer which effect an abrupt change in the absolute direction of rotation of the bobbin from the direction of rotation of the transferring flyer wheel to the direction of rotation of the receiving flyer wheel, and thereby retain the bobbin in the position required for locking or unlocking.
  • the abrupt engagement of the jaws subjects the separate parts of the device to great mechanical stresses.
  • a device which prevents the abrupt change in the direction of rotation of the bobbin at the point of transfer.
  • the connecting line of the retaining claws in the form of gripper hooks does not extend through the axis of the bobbin.
  • the aforementioned construction of the double gripper arm requires the bobbin to be additionally accelerated to a rota tional speed in excess of that of the receiving flyer wheel, and then to be decelerated.
  • the separate parts of thedevice are also subjected to great stresses.
  • the present invention seeks to avoid the disadvantages of conventional devices, to increase the working speed of the braiding machine and to permit an increase in the size of the braider bobbins.
  • a device in which the surfaces of the retaining claws engaged behind the projections are curved to form a radius which corresponds to the radius of turn of these surfaces about the axis of the bobbin.
  • the double gripper arm is rotatable relative to the flyer wheel carrying the bobbin, so that one retaining claw engages with one projection. Rotation effecting the locking or unlocking is controllable so that it extends across a specific region of the path in front of and be hind the point of transfer with a uniformly accelerated change in the speed of rotation from the speed of rotation of the transferring flyer wheel to the speed of rotation of the receiving flyer wheel.
  • One advantage of this construction resides in the fact that the angular control movement of the bobbin required for locking or unlocking can be initiated well in advance of the actual point of transfer and can be correspondingly terminated well after the point of transfer.
  • the mechanical stresses of the bobbin are not greater than the stresses of conventional braiding machines.
  • the centrifugal forces are absorbed directly by the flyer wheels, and the bobbin is accurately guided at all points of the path, the speed of the machine can be substantially increased.
  • an object according to the present invention to provide a device capable of permitting an increased working speed of the braiding machine and permitting larger size bobbins to be utilized.
  • FIG. 1 is a diagrammatic section through the part of a braiding machine including flyer wheels, a bobbin, and a device constructed in accordance with the invention
  • FIG. 2 is a cross-sectional plan view of the machine of FIG. 1 taken along section 22 of FIG. 1;
  • FIG. 3 is a view taken along section 3-3 of FIG. 1;
  • FIG. 4 is a view through the guideway, taken along section 4-4 of FIG. 3.
  • flyer wheels 13 and 14 and respective coaxial additional flyer wheels 15 and 16 are arranged adjacent one another above a base plate 10 in axes at right angles to that of base plate 10.
  • the drive for the flyer wheels is effected by way of two gear wheels 11 and 12.
  • V 14 and additional flyer wheels 15, 16 have respective recesses 17 and 18 which, in the bobbin transfer position illustrated, are located exactly opposite one another and surround spindle 19 of bobbin 20.
  • Flyer wheels 13, 14 together with their additional flyer wheels 15, 16 are rotated in opposite directions by the intenneshing of gear wheels 11 and 12.
  • the locking control is not dependent upon a specific direction in which the braiding machine is running. It operates in the same manner during forward running and reverse running, without additional control elements having to be actuated during changeover.
  • bobbin 20 is transferred from left hand flyer wheels 13 and 15 to right hand flyer wheels 14 and 16.
  • a thread is drawn upwardly from a plurality of braiding spool (not illustrated) located on bobbin 20.
  • a plurality of threads may be drawn upwardly from a plurality of braiding spools (not illustrated).
  • Bobbin spindle 19 is retained in recesses 17 and 18 by a locking device, one part of which comprises projections 21 mounted at right angles on flyer wheels 13 and 14, and projections 22 mounted at right angles on upper flyer wheels 15 and 16.
  • the other part of the locking device is formed by a double gripper arm 23 which is arranged on bobbin spindle 19 so as to be non-rotatable relative thereto, and so that two retaining claws 24 and 25, having ends mounted at right angles relative to each other, can engage behind projections 21 and 22.
  • the facing surfaces of retaining claws 24 and 25 are of arcuate configuration having a radius which corresponds to the distance of these surfaces from the center of bobbin spindle 19 with which the double gripper arm 23 rotates.
  • the contact surfaces of projections 21 and 22 are also arcuate in order to maintain the contact pressure at a low value.
  • the pivoted gripper arm illustrated by solid lines in FIG. 2, shows retaining claw 24 still just in engagement with projection 21, while the oppositely located retaining claw is in engagement with projection 22 which has been reached on the receiving fiyer wheel.
  • Bobbin 20 is accelerated from non-rotation to the speed of the receiving flyer wheel in the second half of the transfer region between points 27 and 28 on the path of movement.
  • Retaining claw 25 is then turned centrally behind projection 22 by the relative rotation occurring, i.e., the longitudinal axis of double gripper arm 23 again assumes a radial position relative to the receiving fiyer wheel. This concludes the reversal of engagement.
  • a device for transferring a bobbin mounted on a spindle of a braiding machine between two adjacent flyer wheels comprising;
  • a double gripper arm for retaining the bobbin, said double gripper arm having retaining claws which engage behind said projections on each of said fiyer wheels, the longitudinal axis of said gripper arm extending through the axis of said bobbin, said retaining claws having curved edge surfaces forming a radius corresponding to the radius of the turn of the surfaces about the longitudinal axes of the bobbin, the double gripper arm being rotatable relative to the flyer wheel carrying the bobbin so that one retaining claw engages with one projection for locking and unlocking the fiyer wheel such that the transfer region extends across a specific region of the path in advance and after the point of transfer with uniformly accelerated change in the speed of rotation, from the speed of rotation of the transferring fiyer wheel to the speed of rotation of the receiving flyer wheel.
  • the device as recited in claim 1 additionally comprising a guideway for controlling the rotation effecting locking and unlocking, a guide piece being movable transversely to its direction of movement relative to the bobbin spindle, the rotation of the bobbin spindle being produced by said guide piece connected thereto, and two followers rotatably mounted for sliding one behind the other in the guideway.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Knitting Machines (AREA)
  • Ropes Or Cables (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US74409A 1969-09-23 1970-09-22 Device for transferring the bobbin of a braiding machine between two adjacent flyer wheels Expired - Lifetime US3656398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691947976 DE1947976C (de) 1969-09-23 Vorrichtung zum Übergeben des Klöppels einer Flechtmaschine

Publications (1)

Publication Number Publication Date
US3656398A true US3656398A (en) 1972-04-18

Family

ID=5746218

Family Applications (1)

Application Number Title Priority Date Filing Date
US74409A Expired - Lifetime US3656398A (en) 1969-09-23 1970-09-22 Device for transferring the bobbin of a braiding machine between two adjacent flyer wheels

Country Status (12)

Country Link
US (1) US3656398A (OSRAM)
JP (1) JPS4841109B1 (OSRAM)
BE (1) BE755896A (OSRAM)
CH (1) CH509449A (OSRAM)
CS (1) CS157683B2 (OSRAM)
ES (1) ES383865A1 (OSRAM)
FR (1) FR2062514A5 (OSRAM)
GB (1) GB1323709A (OSRAM)
PL (1) PL81127B1 (OSRAM)
RO (1) RO67138A (OSRAM)
SU (1) SU394973A3 (OSRAM)
ZA (1) ZA706282B (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774497A (en) * 1971-07-26 1973-11-27 Stevens & Co Inc J P Molded elastomer braiding machine bobbin carrier
CN109440296A (zh) * 2018-11-28 2019-03-08 中国纺织科学研究院有限公司 一种用于三维自动编织设备的编织站

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110016761A (zh) * 2019-04-28 2019-07-16 徐州恒辉编织机械有限公司 一种圆扁型手术缝合线编织机的编织平台

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1499830A (en) * 1923-10-20 1924-07-01 Textile Machine Works Braiding machine
US1702814A (en) * 1928-05-23 1929-02-19 Columbian Rope Co Plaiting, braiding, and twisting machine
US2362688A (en) * 1941-06-27 1944-11-14 Titeflex Inc Braiding machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE247778C (OSRAM) *
DE361207C (de) * 1920-06-14 1922-10-12 Dreifuss Geb Flechtmaschine ohne Gangplatte
US1906946A (en) * 1930-05-12 1933-05-02 Bornemann Johann Heinrich Braiding machine and the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1499830A (en) * 1923-10-20 1924-07-01 Textile Machine Works Braiding machine
US1702814A (en) * 1928-05-23 1929-02-19 Columbian Rope Co Plaiting, braiding, and twisting machine
US2362688A (en) * 1941-06-27 1944-11-14 Titeflex Inc Braiding machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774497A (en) * 1971-07-26 1973-11-27 Stevens & Co Inc J P Molded elastomer braiding machine bobbin carrier
CN109440296A (zh) * 2018-11-28 2019-03-08 中国纺织科学研究院有限公司 一种用于三维自动编织设备的编织站

Also Published As

Publication number Publication date
BE755896A (fr) 1971-02-15
GB1323709A (en) 1973-07-18
CS157683B2 (OSRAM) 1974-09-16
ZA706282B (en) 1971-05-27
RO67138A (ro) 1982-04-12
CH509449A (de) 1971-06-30
PL81127B1 (OSRAM) 1975-08-30
FR2062514A5 (OSRAM) 1971-06-25
ES383865A1 (es) 1973-03-01
JPS4841109B1 (OSRAM) 1973-12-04
DE1947976B1 (de) 1971-03-04
SU394973A3 (OSRAM) 1973-08-22

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