US2871649A - Centrifugal can spinning units - Google Patents

Centrifugal can spinning units Download PDF

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Publication number
US2871649A
US2871649A US559745A US55974556A US2871649A US 2871649 A US2871649 A US 2871649A US 559745 A US559745 A US 559745A US 55974556 A US55974556 A US 55974556A US 2871649 A US2871649 A US 2871649A
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United States
Prior art keywords
spinning
thread
thread guide
centrifugal
guide
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Expired - Lifetime
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US559745A
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English (en)
Inventor
Gardella Adriano
Gardella Constantino
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Individual
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Individual
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Publication of US2871649A publication Critical patent/US2871649A/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies

Definitions

  • This invention relates to centrifugal can-spinning units, to be fitted on frames particularly adapted for spinning long and coarse fibers such as hemp, flex, jute, sisal and the like, and which comprise a rapidly rotating centrifugal spinning can and a tubular thread guide projecting into said can.
  • the thread guide in such a manner as to provide, at least at its outlet end, an outer wall which is rotatably mounted about the thread guide axis and can be driven by the spinning can indirectly, viz. by the thread section which is tensioned between the thread guide and the spinning can.
  • the rotatably mounted outer wall of the thread guide does not rotate while the spinning process is regular, but it is driven by the same spinning can through the thread, as soon as the passage of the thread through the thread .guide is braked, as by knots, or lumps on the thread.
  • the outer wall of the thread guide is coupled directly with the spinning can and thus rotates always with this latter during the normal spinning.
  • the rotatable outer wall of the thread guide can be either integral with the inner wall, and in this case the whole thread guide is rotatably mounted, or the thread guide proper is fixed, at least in its upper section, while its outer and/or lower tubular part is rotatably mounted.
  • Figure 1 is a longitudinal section through a first embodiment of the invention
  • Figure 2 is a cross section through the neck of the spinning can shownvin Figure 1;
  • Figure 3' shows one half in axial section and one half in side view a variation of the embodiment shown in Figure 1
  • t Figure 4 is a plan view on line VI-VI of Figure 3 and shows the top part of the thread guide.
  • 1 is a bell-like centrifugal spinning can which is provided at its top with a neck 101 by means of which it is suspended to ball or like bearings 3.
  • the can is driven by means of belt pulley 4 fastened to an upper part of said neck 101.
  • the inside of the thread guide 5 is provided with friction surfaces which serve for equalizing and smoothing the thread during its spinning and for keeping same in its middle.
  • these friction surfaces consist of a coreless helical rib 8 which leaves in correspondence of its axis a substantially narrow bore 108 (see Fig. 2).
  • the thread F to be spun passes through said bore 108 and thus it comes into contact with the inner edges of the helical member 8, and thus it is smoothed and the outstanding fibers are caused to adhere to the thread.
  • This smoothing is particularly useful by the centrifugal spinning of long and rough fibers and particularly whenever substantially thin threads should be produced.
  • the thread guide 5, during the normal spinning, does not revolve, but is only reciprocated. If however the sliver F presents some knot or bulging portion which cannot pass freely through the axial passage 108 of the helical rib 8, and the thread, due to its strength, does not break, the rotatable thread guide 5 is entrained in rotation by the spinning can 1 in the same direction and at substantially the same speed as this latter by means of the radial thread section F1 extending between the guide 5 and the thread part G coiled within the spinning can 1 and thus the said coiled thread G cannot be uncoiled and rewound on the thread guide 5.
  • a brake is provided which, in the embodiment as shown, comprises a cylindrical flange 205 fitted at the upper end of the outer rotatable member 5 of the thread guide and a braking shoe 20 which is pressed, as by a V-shaped leaf spring against said flange 205.
  • the force of this spring 120 may be regulated by a screw 21, so as to avoid that the thread guide rotates under normal spinning conditions, but is caused to rotate together with the spinning can whenever the thread, due to the pressure of some bulging part, cannot pass freely through the thread guide.
  • an inlet member 22 is fitted whose funnel-shaped central portion 122 opens into the top of the thread guide bore.
  • the upper section of the thread guide may be protected at the outside by a bellows-like flexible sleeve 24 arranged awn-e49 only the lower section viz. the part which projects into the can, is rotatably mounted so as to revolve in the same direction and substantially at the same speed as the spinning can, in order to avoid uncoiling of the thread coiled within the can and recoiliug thereof of the thread guide.
  • a centrifugal can-spinning unit comprising: a bell-like rotatably suspended centrifugal spinning can having a closed top with an axial bore; means for driving said can at selected high speed, movable supporting means reciprocal towards or away from said spinning can, a straight tubular thread guide mounted on said supporting means and slidably traversing said axial bore and projecting in part into said spinning can, at least the part of the straight thread guide which projects into i the said can being idly rotatable, thread-engaging friction surfaces in said rotatable thread guide part, and said tubular guide being traversed by a bore provided with ribs extending from many difierent sides at least to the thread guide axis.
  • a centrifugal can-spinning unit comprising: a
  • bell-like rotatably suspended centrifugal spinning can having a closed top with an axial bore; means for driving said can at selected high speed, movable supporting means reciprocal towards or away from said spinning can, a straight tubular thread guide mounted on said supporting means and slidably traversing said axial bore and projecting in part into said spinning can, at least the part of the straight thread guide which projects into the said can being idly rotatable, thread-engaging friction surfaces in said rotatable thread guide part, and the driving connection between said straight thread guide and the said spinning can being established by the thread section tensioned between the thread guide outlet and the thread coiled in the spinning can so that the rotatable part of said thread guide is rotated each time said tension becomes excessive due to a hindrance to the free passage of the thread through the thread guide.
  • a centrifugal can-spinning unit comprising: a bell-like rotatably suspended centrifugal spinning can having a closed top with an axial bore; means for driving said can at selected high speed, movable supporting means reciprocal towards or away from said spinning can, a straight tubular thread guide mounted on said supporting means and slidably traversing said axial bore and projecting in part into said spinning can, at least the part of the straight thread guide which projects into the said can being idly rotatable, thread-engaging friction surfaces in said rotatable thread guide part, the driving connection between said straight thread guide and the said spinning can being established by the thread section tensioned between the thread guide outlet and the thread coiled in the spinning can so that the rotatable part of said thread guide is rotated each time said tension becomes excessive due to a hindrance of the free passage of the thread through the thread guide, and means for braking the rotation of said rotatable thread guide part.
  • a centrifugal can-spinning unit comprising: a bell-like rotatably suspended centrifugal spinning can having a closed top with an axial bore; means for driving said can at selected high speed, movable supporting means reciprocal towards or away from said spinning can, a straight tubular thread guide mounted on said supporting means and slidably traversing said axial bore and projecting in part into said spinning can, at least the part of the straight thread guide which projects into the said can being idly rotatable, thread-engaging friction surfaces in said rotatable thread guide part, the driving connection between said straight thread guide and the said spinning can being established by the thread section tensioned between the thread guide outlet and the thread coiled in the spinning can so that the rotatable part of said thread guide is rotated each time said tension becomes excessive due to a hindrance of the free passage of the thread through the thread guide, means for adjustably braking the rotation of said rotatable thread guide part, said means comprising a drum-like part fastened to said rota

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US559745A 1955-01-18 1956-01-17 Centrifugal can spinning units Expired - Lifetime US2871649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT780694X 1955-01-18

Publications (1)

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US2871649A true US2871649A (en) 1959-02-03

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US559745A Expired - Lifetime US2871649A (en) 1955-01-18 1956-01-17 Centrifugal can spinning units

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US (1) US2871649A (enrdf_load_stackoverflow)
BE (1) BE544463A (enrdf_load_stackoverflow)
FR (1) FR1142000A (enrdf_load_stackoverflow)
GB (1) GB780694A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957301A (en) * 1957-01-19 1960-10-25 Gardella Adriano Centrifugal can spinning frames

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1789107A (en) * 1929-09-14 1931-01-13 Mcgowan Joseph Centrifugal spinning machine
DE545009C (de) * 1930-08-15 1932-02-24 Bemberg Ag Spinnzentrifuge fuer Kunstseide
US1994472A (en) * 1932-10-01 1935-03-19 Du Pont Rayon Co Mechanical motion and its use
US2073839A (en) * 1932-07-14 1937-03-16 Du Pont Manufacture of thread
DE693246C (de) * 1935-03-27 1940-07-04 Karl Berndt Dr Ing Vorrichtung zum gleichzeitigen Spinnen und Zwirnen von kuenstlichen Faeden
US2603939A (en) * 1949-09-30 1952-07-22 American Viscose Corp Guide for centrifugal spinning
DE866770C (de) * 1948-10-02 1953-02-12 Karl Dipl-Ing Mueller Fadenspannungsregelung beim Zentrifugenspinnen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1789107A (en) * 1929-09-14 1931-01-13 Mcgowan Joseph Centrifugal spinning machine
DE545009C (de) * 1930-08-15 1932-02-24 Bemberg Ag Spinnzentrifuge fuer Kunstseide
US2073839A (en) * 1932-07-14 1937-03-16 Du Pont Manufacture of thread
US1994472A (en) * 1932-10-01 1935-03-19 Du Pont Rayon Co Mechanical motion and its use
DE693246C (de) * 1935-03-27 1940-07-04 Karl Berndt Dr Ing Vorrichtung zum gleichzeitigen Spinnen und Zwirnen von kuenstlichen Faeden
DE866770C (de) * 1948-10-02 1953-02-12 Karl Dipl-Ing Mueller Fadenspannungsregelung beim Zentrifugenspinnen
US2603939A (en) * 1949-09-30 1952-07-22 American Viscose Corp Guide for centrifugal spinning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957301A (en) * 1957-01-19 1960-10-25 Gardella Adriano Centrifugal can spinning frames

Also Published As

Publication number Publication date
GB780694A (en) 1957-08-07
BE544463A (enrdf_load_stackoverflow)
FR1142000A (fr) 1957-09-12

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