US3846967A - Mounting apparatus for spinning assembly - Google Patents

Mounting apparatus for spinning assembly Download PDF

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Publication number
US3846967A
US3846967A US00264528A US26452872A US3846967A US 3846967 A US3846967 A US 3846967A US 00264528 A US00264528 A US 00264528A US 26452872 A US26452872 A US 26452872A US 3846967 A US3846967 A US 3846967A
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United States
Prior art keywords
shell
cover
lever
spinning
operating lever
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Expired - Lifetime
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US00264528A
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English (en)
Inventor
W Braun
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SKF GmbH
Original Assignee
SKF Kugellagerfabriken GmbH
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor

Definitions

  • ABSTRACT shell the cover and the frame: the lever mechanism being operable to pivot the shell about the fixed pivot means between a first position wherein said whorl is in engagement with said belt and a second position wherein said whorl is out of engagement with the belt to thereby interrupt the drive of said spinning turbine.
  • Spindleless spinning assemblies comprise a housing formed of a shell and cover in which various spinning mechanisms such as the rotating turbine, the feed and picker rollers, etc. are located. It is often necessary to obtain entry to the inside of the housing, for instance to clean the interior of the turbine, the spinning chamber, etc. of dirt, shell particles and fibers. With most open end spinning assemblies there are provided devices, which permit quick and easy entry into the inner turbine space. This is especially the case for such devices in which no possibility is provided for automatically sucking off the fiber ring which remains in the spinning chamber after the breaking of a thread. Furthermore, it is desireable that the opening of the spinning chamber be automatically coupled with a procedure for slowing the drive of the spinning turbine and, if possible, also with a breaking of the spinning turbine.
  • a spinning assembly which fulfills these conditions to a great degree is described in the Austrian Patent 267,375 and in German Patent Publication DOS 1,815,776.
  • two-part housings are shown, one part containing the spinning turbine and the other part the devices for feeding and separating or picking the fibers.
  • This pivotal movement automatically brought about a pivotal movement of the part containing the spinning turbine around a pivotal axis fixed mounting with the machine frame.
  • the drive whorl for the spinning turbine was taken off the driving tangential belt and was brought onto a breaking device. In this way it was assured that the spinning turbine came to a stand still immediately after opening and could be cleansed without danger.
  • a great disadvantage to the above described spinning assembly can be seen in that in order to bring the spinning turbine of a single spinning aggregate to a stand still it was necessary to completely open the cover, while other spinning assemblies associated with it were still left running being driven by the same belt of the spinning machine. This is especially of a disadvantage when the device for automatically cleaning the spinning turbine after a breaking of a thread is provided having means which can only suck off the remaining fiber ring when the spinning turbine comes to a complete stand still or at least runs with greatly decreased revolutions.
  • the present invention therefore has the object to provide a spinning assembly of the kind described whereby it is possible to interrupt the drive for the spinning turbine even when the spinning'assembly is closed or merely to slow it down.
  • the lever mechanism is formed as an over-the-center toggle arranged on the side of the spinning aggregate opposite of the machine-fixed pivoting axis and comprises two levers, one of which serves as an operating or activating lever, with one end pivotable on the shell of the housing and in its middle region pivotable with the one end of the second lever whose other end is pivotable around a second machine-fixed pivot point.
  • the second lever is L- shaped and has two legs angled to each other, of which the one which is connected with the second machinefixed pivot point and acts to stop the pivotal motion of the operating lever. This leg can be abutted against the stop so that when the operating lever is forced to pivot still further, its pivotal point remains fixed in place and the spinning housing on account of the movement is pivoted about the first fixed axis.
  • the end of the operating lever connected with the housing be pivotable around the pivot axis of the lever itself.
  • the cover of the spinning aggregate is formed in such a way that by its opening a forcible acitivation of the lever mechanism for interruption of the drive of the spinning turbine is being effected.
  • FIGS. 1 3 show schematic presentations of different manufacturing conditions of spinning assembly of the invention.
  • the spinning assembly comprises the conventional box like rectangular housing or enclosure formed a cover I mounted on a shell 2.
  • the housing 2 is mounted, as will be described, across spaced portions of a stationary or fixed machine frame 3.
  • the conventional spinning devices such as an open face spinning turbine or rotor, and additional spinning mechanisms such as a fiber picking or loosening roller and fiber feed rollers.
  • a turbine bearing cylinder Depending through the bottom surface of the shell 2 through the space in the frame is a turbine bearing cylinder at the end of which the drive whorl 4 extends normally into tangential engagement with an endless drive belt 6.
  • the drive shaft 5 for the fiber picker or loosening roller which also tangentially engages an endless drive belt 7.
  • the drive belts 6 and 7 are driven continuously in conventional manner and the spinning assembly is otherwise operable in the conventional and usual manner.
  • the cover 1 is provided at one end with a manually operable lever 8 having a triangular shape, and which is pivoted at point 9 to shell 2.
  • the point 9 serves also as the pivot point between the cover 1 and the shell 2.
  • the operating lever 8 is connected by a bell crank or L shaped lever 11 to a block 13 secured to the machine frame 3. Together the levers 8 and 11 form a toggle arrangement for lifting the shell 2.
  • the block 13 underlies the end of the shell 2.
  • the bell crank lever 11 is pivotally connected to the operating lever 8 at the mid-point l0 and pivotally to the block 13 at point 12.
  • the shell 2 is pivoted about a transverse pin 14 mounted on the machine frame 13.
  • the pivot pin 14 is otherwise fixed against movement relative to the machine frame.
  • an angle brace 15 mounted on another portion 19 of the machine frame is an angle brace 15 on which a suitable brake pad 16, of conventional high friction material, is secured.
  • the brace 15 and pad 16 are located in line with the whorl 4 but normally spaced from it so as not to interfere with its normal operation.
  • the bearing cylinder of conventional fiber feed rollers located within the housing 2.
  • a shaft at the end of which is mounted the driven element 17 of a coupling or clutch extends from the fiber feed roller cylinder.
  • Below the driven element 17, there is axially arranged the driving element 18 of the coupling which is fixedly supported by a shaft 21 journalled in a bearing post 20 which is securely mounted on the machine frame 19.
  • a releaseable latch mechanism 22 the release button device of which extends outwardly of the upper surface of the cover 1.
  • the exact details of the latch mechanism can take any form and therefore a showing of the same is omitted here.
  • FIG. 1 the spinning assembly is seen in the position it would take during normal operation, that is in the position taken during the spinning process.
  • the cover 1 is tightly latched closed, by locking means 22, with the lower shell 2 and the entire assembly assures the stationary position relative to the machine frame parts 3 seen in FIG. 1 wherein the forward end rests on block 13 and the rear end fixed by pivot pin 14 on the frame part 3.
  • the drive whorls 4 and 5 are tangentially engaged by belts 6 and 7 respectively so that both the turbine and the loosen rollers are operated.
  • the coupling or clutch driven element 17 and drivingelements 18 also engage.
  • the operating lever 8 is in its closed or upward position.
  • FIG. 2 shows the spinning assembly when the spinning operation is interrupted but the cover is not opened.
  • the Assembly is placed in this condition by swinging the operating lever 8 counter-clockwise in the direction of arrow A from the position shown in FIG. 1 to that shown in FIG. 2.
  • the swinging lever 8 causes the pivot point 10 to make a circular sweep or path about the pivot part 9 which of course remains at a fixed distance from it.
  • the swing lever 8 causes the bell crank lever 11 to swing about its own pivot end 12 until the lower arm of the crank 11 engages on the block 13 at which time the crank 11 acts as a fulcrum for the assembly so that further force on the outer end of operating lever 8 causes the inner end of the lever 8 to lift the housing 2 at the point 9 along the direction of arrow B.
  • the pivot point 9 hardly moves but only raises upwardly slightly in conjunction with the rising housing 2. Since the housing 2 is pivoted at its rear end about the pin 14 which is fixed to the stationary frame, the entire housing slants upward as is seen in FIG. 2. When this action is completed, the whorls 4 and 5 move away from their respective drive belts and are no longer driven. The turbine whorl 4 automatically engages the brake pad 6'and is instantly slowed and brought to a halt, ceasing the actual spinning operation. Simultaneously, the coupling elements l7 and 18 are also disengaged. It will be noted that the spinning process is stopped even before the cover 1 is opened.
  • the cover may be opened by releasing the latch mechanism 22 and moving the cover counterclockwise about its pivot point 9 in the direction of arrow C, as seen in FIG. 3.
  • the cover 1 When the cover 1 is fully opened, the lower portion of its outer edge engages a point 23 on the operating lever 8 and remains in the open position. Further movement of the open cover, abutting against point 23, forces the operating lever 8 to swing counter-clockwise about point 12 as previously described.
  • the weight and position of the cover 1 maintains the spinning assembly automatically in the position of FIG. 2 where the drive whorls are out of engagement with the belts, not only during the opening process but also when the cover is fully opened, consequently stopping the rotation of the turbine.
  • latch means 22 comprises a push-button actuating element 24 accessible from the upper side of the cover 1 and secured thereto in any known and convenient manner, e.g. a nut 26 cooperating with a threaded sleeve slideably accommodating the actuating element 24.
  • the inner end of the latter abuts against the horizontal leg a locking lever 28 pivoted at point 30 which is fixed with respect to cover 1.
  • the vertical leg of lever 28 is spring loaded by a compression spring 32 to be forward biased in a clock-wise direction.
  • At its lower end lever 28 is provided with a nose 34 cooperating with a mating nose 36 of a locking element 40 secured to shell 2.
  • lever 28 When pressing down the actuating element 24, lever 28 is turned in a counter-clock-wise direction so that nose 34 comes free of nose 36 and cover 1 may be opened.
  • Apparatus for mounting a spinning assembly on a machine frame comprising a housing formed of a shell pivotally mounted at one end to-said machine frame and a cover pivotally mounted on said shell at the opposite end to be movable between an open and closed position relative thereto, said shell being adapted to house at least a spinning turbine journalled within said shell having a drive whorl extending outwardly therefrom for tangential engagement with a continuously driven belt, a lever mechanism interconnecting said shell, said cover and said frame, said lever mechanism comprising a toggle assembly located at the end of said shell opposite to said fixed pivot means, comprising an operating lever pivotally connected at one end to said shell, and an L-shaped lever pivotally connected at one of its ends to the midpoint of said operating lever and pivotally connected at its other end to said frame, the mid-point of said operating lever being swingable about the pivotal connection of said operating lever to said shell whereby said lever is opened and movable therewith into an over the center position with respect to the pivotal connection to cause said L-shaped lever
  • Apparatus according to claim 4 including additional spinning mechanisms within said shell each of said mechanisms including activating mechanism extending outwardly therefrom for engagement with an associated drive mechanism, said activating and drive mechanisms being engaged in the first position and disengaged in the second.
  • Apparatus according to claim 4 including latch means for locking said cover on said shell independently of said lever mechanism.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00264528A 1971-06-21 1972-06-20 Mounting apparatus for spinning assembly Expired - Lifetime US3846967A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2130739A DE2130739C3 (de) 1971-06-21 1971-06-21 Spinnaggregat für Offen-End-Spinnmaschinen

Publications (1)

Publication Number Publication Date
US3846967A true US3846967A (en) 1974-11-12

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ID=5811361

Family Applications (1)

Application Number Title Priority Date Filing Date
US00264528A Expired - Lifetime US3846967A (en) 1971-06-21 1972-06-20 Mounting apparatus for spinning assembly

Country Status (6)

Country Link
US (1) US3846967A (de)
JP (1) JPS526376B1 (de)
CH (1) CH546836A (de)
DE (1) DE2130739C3 (de)
GB (1) GB1385948A (de)
IT (1) IT959813B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721000A1 (de) * 1976-05-18 1977-12-08 Platt Saco Lowell Ltd Offen-end-spinnvorrichtung
US4070814A (en) * 1975-06-07 1978-01-31 Skf Kugellagerfabriken Gmbh Apparatus for arresting the rotor in an open-end spinning machine
US4112659A (en) * 1975-12-06 1978-09-12 Fritz Stahlecker Open end spinning unit with a braking device
US20160136723A1 (en) * 2013-07-19 2016-05-19 Ribe Anlagentechnik Gmbh Scrap container for scrap waste, in particular for scrap mandrels from blind rivets, and movable manipulator with such a scrap container

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH622292A5 (de) * 1977-09-15 1981-03-31 Bbc Brown Boveri & Cie

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375649A (en) * 1965-11-16 1968-04-02 Vyzk Ustav Bavlnarsky Servicing arrangement for spinning machines
US3511045A (en) * 1968-01-22 1970-05-12 Elitex Zavody Textilniho Spinning apparatus having a servicing position
US3668854A (en) * 1969-08-04 1972-06-13 Alsaclenne De Const Mecaniques Spinning frames
US3695021A (en) * 1969-10-13 1972-10-03 Tmm Research Ltd Textile spinning machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375649A (en) * 1965-11-16 1968-04-02 Vyzk Ustav Bavlnarsky Servicing arrangement for spinning machines
US3511045A (en) * 1968-01-22 1970-05-12 Elitex Zavody Textilniho Spinning apparatus having a servicing position
US3668854A (en) * 1969-08-04 1972-06-13 Alsaclenne De Const Mecaniques Spinning frames
US3695021A (en) * 1969-10-13 1972-10-03 Tmm Research Ltd Textile spinning machines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070814A (en) * 1975-06-07 1978-01-31 Skf Kugellagerfabriken Gmbh Apparatus for arresting the rotor in an open-end spinning machine
US4112659A (en) * 1975-12-06 1978-09-12 Fritz Stahlecker Open end spinning unit with a braking device
DE2721000A1 (de) * 1976-05-18 1977-12-08 Platt Saco Lowell Ltd Offen-end-spinnvorrichtung
US4122655A (en) * 1976-05-18 1978-10-31 Platt Saco Lowell Limited Housing and mounting means for open end spinners
US20160136723A1 (en) * 2013-07-19 2016-05-19 Ribe Anlagentechnik Gmbh Scrap container for scrap waste, in particular for scrap mandrels from blind rivets, and movable manipulator with such a scrap container

Also Published As

Publication number Publication date
IT959813B (it) 1973-11-10
JPS526376B1 (de) 1977-02-22
DE2130739C3 (de) 1978-10-12
DE2130739B2 (de) 1974-10-10
CH546836A (de) 1974-03-15
GB1385948A (en) 1975-03-05
DE2130739A1 (de) 1973-01-11

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