US3714861A - Apparatus for reversing the bobbins in a braiding machine - Google Patents

Apparatus for reversing the bobbins in a braiding machine Download PDF

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Publication number
US3714861A
US3714861A US00114280A US11428071A US3714861A US 3714861 A US3714861 A US 3714861A US 00114280 A US00114280 A US 00114280A US 11428071 A US11428071 A US 11428071A US 3714861 A US3714861 A US 3714861A
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United States
Prior art keywords
bobbin
base
rotation
bobbin base
bobbins
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Expired - Lifetime
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US00114280A
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English (en)
Inventor
R Strangfeld
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HERZOG A MASCHINENFAB DT
HERZOG MASCHF A
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HERZOG MASCHF A
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Application filed by HERZOG MASCHF A filed Critical HERZOG MASCHF A
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    • 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

Definitions

  • ABSTRACT An apparatus for reversing the position of the bobbin of braiding machines wherein each bobbin is rotatably coupled to a bobbin base which includes a bobbin locking mechanism for releasably coupling the bobbin base to the bobbin so that after the bobbin is accelerated in the direction of reversal caused by the tracking kinemetics, the locking mechanism is released during the counter-rotation of the bobbin base so that inertia of the bobbin rotator allow the causes it to rotate through the required angle relative to the bobbin base.
  • This invention relates to an apparatus for reversing the bobbins of a braiding machine.
  • the machine has bobbins which are rotatable relative to their bases, in order to prevent the braided product from twisting due to the movement described by the bobbins.
  • the path described by the bobbins In order to prevent the material from twisting during the braiding process, it is necessary to arrange the path described by the bobbins through the driving elements in such a way that the 360 rotation of the bobbin base during its circuit is not also described by the bobbin itself. In other words, the path should be arranged so that the bobbins are almost uniformly orientated throughout their travel.
  • Conventional rope braiding machines are provided with a pinion rotatably mounted about a horizontal shaft attached to the bobbin at its lower end. This pinion engages the gear-teeth of a stationary plate which extends along the entire length of the bobbin tracks.
  • the bobbin base and the bobbin itself are mounted rotatably with respect to each other, and the material is prevented from twisting by the a reverse brake curve at each reversing section of the bobbin rotating element.
  • an apparatus is already known which operates similarly to a planetary gear to prevent the material from twisting.
  • the problem is solved according to the invention by locking the bobbin base with the bobbin during the acceleration in the reverse direction caused by the tracking kinematics, and releasing this coupling on completion of the acceleration, and leaving it released until the bobbin, owing to its inertia, has further rotated through the desired angle relative to the bobbin base during the subsequent counter-rotation of the latter.
  • a four-element machine is used as a basis for explaining the idea of the invention.
  • the apparatus will, of course, also operate with, for example, six-element machines in which the angle of reversal is smaller relative to the length of the reversing zone.
  • a band brake is used as a coupling or bobbin-locking device, the release of the brake must take place precisely at the peak of the track curve of the wheels which guide the bobbin through the center of the machine, otherwise the full rotational moment will not be imparted to the bobbin.
  • the brake may be released before the peak of the track curve which lies nearer to the center of the machine, since the bobbin is prevented by the pawl from rotating in the direction opposed to reverse-rotational direction.
  • the brake lining can wear away without any danger that the brake will not have been fully released by the time the peak of the track curve is reached.
  • the brake release occurs externally of the bobbin; that is, a releasing lever engages a control rail and disconnects the rotating bobbin from the base of the bobbin. While the bobbin base is executing its guided circuit along the track curve, the rotational moment initiated by the wheel guiding the bobbin through the center of the machine can operate on the bobbin.
  • the bobbin-locking mechanism locks the bobbin and the bobbin base together, internally of the bobbin.
  • the bobbin thus resumes the same direction of rotation as the bobbin base.
  • FIG. 1 is a track diagram of a four-element ropebraiding machine
  • FIG. 2 shows the locking arrangement between the bobbin base and the bobbin.
  • the bobbin base 2 (which maintains its position relative to the guide track 1 owing to a guide shuttle which engages in the track) rotates clockwise through 360 during each complete circuit.
  • bobbin 3 located rotatably on base 2, must rotate backwards, counterclockwise, through an equivalent angle relative to the bobbin base. In the braiding wheel arrangement illustrated, this motion takes place in two stages, each of 180, the inertia of the bobbin being used to produce the reversing motion. The changes of motion during a 180 rotation will be explained with reference to FIG. 1.
  • Fig. 1 shows the position of the bobbin on the bobbin base in various positions during the cycle. It must, however, be stated that the bobbin position at point 7, following completion of a reverse rotation, is purely theoretical since, owing to frictional losses, the reversal of the bobbin on the base takes place somewhat later. However, this difference is not material to an understanding of the braking and release operations. In addition, a point is marked on the bobbin 3, in order that the reversing movements of this component may more readily be followed.
  • alternating rotational motions are imparted to bobbin base 2. During its travel, it always rotates in the direction of the wheel driving it and changes its direction of rotation on transition to the adjoining driving wheel.
  • bobbin base 2 and bobbin 3 coupled thereto rotate clockwise, in accordance with the direction of rotation of wheel 4a.
  • bobbin base 2 and bobbin 3 coupled thereto change their direction of rotation to correspond to that of adjoining wheel 4b.
  • bobbin 3 is released from the base 2 by the action of the stationary control rail 8 on the releasing lever 9, so that an anticlockwise rotation in the reverse direction relative to the base is performed.
  • the timing of the release of the bobbin locking mechanism can be advanced within wide limits.
  • Bobbin 3 and base 2 may even be released in the direction of reversal on the clockwise-rotating wheels 4a, 4c, since a twisting in a direction .opposite to the direction of reversal is prevented by a latch 11, a pawl or similar mechanism.
  • FIG. 2 An example of an embodiment of a bobbin-locking mechanism 10 is shown in FIG. 2.
  • Bobbin base 2 and bobbin 3 are shown in their locked position.
  • the released positions of bobbin-locking mechanism 10 are shown in dashed line.
  • the direction of reversal of bobbin 3 is marked with an arrow.
  • Bobbin-locking mechanism 10 ' is rotated into the position shown dashed by the impact of releasing lever 9 against control rail 8. Owing to the rotational moment the bobbin rotates in the direction of the arrow.
  • Locking catch 13, urged by compression spring 12 holds the bobbinlocking mechanism 10 in the released position.
  • dog 14 strikes against catch 13, whereby compression spring 16 returns locking mechanism 10 to its locked position.
  • pawl 11 simultaneously locks bobbin-rotator 3 to base 2.
  • FIG. 2 should also be regarded merely as a diagrammatic arrangement, since 'in actually designing this component, a band brake would be used in order to ensure gentler braking. However, within the framework of the present application, it is not necessary to describe the design of already-known individual components such as shock absorbers, band brakes, and the like.
  • a bobbin rotatably mounted on said bobbin base; locking means, for releasably locking said bobbin to said bobbin base so as to prevent rotational movement of said bobbin with respect to said bobbin base; and
  • said locking means comprises a brake mounted on said bobbin base for engaging said bobbin and securing said bobbin from rotational movement with respect to said bobbin base.
  • said bobbin further comprises at least two abutment members, integrally formed therewith on the outside surface thereof and positioned opposite each other apart; and I wherein said bobbin base further comprises a pawl, pivotably mounted on said bobbin base, and biased by spring means so as to engage said bobbin and said abutment members and prevent rotation of said bobbin in a predetermined direction.
  • said means for releasing said locking means comprises an elongated abutment rail member, mounted on the braiding machine adjacent said prescribed path, for engaging said locking means as it moves by said rail member and thereby releasing said bobbin with respect to said bobbin base.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Ropes Or Cables (AREA)
US00114280A 1970-02-14 1971-02-10 Apparatus for reversing the bobbins in a braiding machine Expired - Lifetime US3714861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2006792A DE2006792C3 (de) 1970-02-14 1970-02-14 Vorrichtung zum Wenden von Flechtmaschinen-Klöppeln

Publications (1)

Publication Number Publication Date
US3714861A true US3714861A (en) 1973-02-06

Family

ID=5762281

Family Applications (1)

Application Number Title Priority Date Filing Date
US00114280A Expired - Lifetime US3714861A (en) 1970-02-14 1971-02-10 Apparatus for reversing the bobbins in a braiding machine

Country Status (5)

Country Link
US (1) US3714861A (ru)
JP (1) JPS522010B1 (ru)
DE (1) DE2006792C3 (ru)
GB (1) GB1346639A (ru)
SU (1) SU645603A3 (ru)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090188380A1 (en) * 2008-01-08 2009-07-30 Triaxial Structures, Inc. Machine for alternating tubular and flat braid sections
US20110203446A1 (en) * 2008-01-08 2011-08-25 Triaxial Structures, Inc. Machine for alternating tubular and flat braid sections and method of using the machine
US8448555B2 (en) 2010-07-28 2013-05-28 Triaxial Structures, Inc. Braided loop utilizing bifurcation technology
US8794118B2 (en) 2008-01-08 2014-08-05 Triaxial Structures, Inc. Machine for alternating tubular and flat braid sections and method of using the machine
US8943941B2 (en) 2008-01-08 2015-02-03 Triaxial Structures, Inc. Braided tube to braided flat to braided tube with reinforcing material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105734821B (zh) * 2016-04-02 2017-07-04 徐州恒辉编织机械有限公司 编织机锭子齿轮式定捻装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1165361A (en) * 1914-11-27 1915-12-21 Archibald Turner & Co Ltd Braiding-machine.
US1693121A (en) * 1926-09-24 1928-11-27 Ind Of America Inc Braiding machine
US1757794A (en) * 1926-02-09 1930-05-06 Gen Cable Corp Braiding machine
US1826545A (en) * 1930-08-11 1931-10-06 Higgins Eugene Braiding machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1165361A (en) * 1914-11-27 1915-12-21 Archibald Turner & Co Ltd Braiding-machine.
US1757794A (en) * 1926-02-09 1930-05-06 Gen Cable Corp Braiding machine
US1693121A (en) * 1926-09-24 1928-11-27 Ind Of America Inc Braiding machine
US1826545A (en) * 1930-08-11 1931-10-06 Higgins Eugene Braiding machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090188380A1 (en) * 2008-01-08 2009-07-30 Triaxial Structures, Inc. Machine for alternating tubular and flat braid sections
US7908956B2 (en) 2008-01-08 2011-03-22 Triaxial Structures, Inc. Machine for alternating tubular and flat braid sections
US20110203446A1 (en) * 2008-01-08 2011-08-25 Triaxial Structures, Inc. Machine for alternating tubular and flat braid sections and method of using the machine
US8347772B2 (en) 2008-01-08 2013-01-08 Triaxial Structures, Inc. Machine for alternating tubular and flat braid sections and method of using the machine
US8794118B2 (en) 2008-01-08 2014-08-05 Triaxial Structures, Inc. Machine for alternating tubular and flat braid sections and method of using the machine
US8943941B2 (en) 2008-01-08 2015-02-03 Triaxial Structures, Inc. Braided tube to braided flat to braided tube with reinforcing material
US8448555B2 (en) 2010-07-28 2013-05-28 Triaxial Structures, Inc. Braided loop utilizing bifurcation technology

Also Published As

Publication number Publication date
DE2006792B2 (de) 1973-11-15
DE2006792C3 (de) 1974-06-20
SU645603A3 (ru) 1979-01-30
GB1346639A (ru) 1974-02-13
DE2006792A1 (de) 1971-09-02
JPS522010B1 (ru) 1977-01-19

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