US2500343A - Stop mechanism for fly frames - Google Patents

Stop mechanism for fly frames Download PDF

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Publication number
US2500343A
US2500343A US707680A US70768046A US2500343A US 2500343 A US2500343 A US 2500343A US 707680 A US707680 A US 707680A US 70768046 A US70768046 A US 70768046A US 2500343 A US2500343 A US 2500343A
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US
United States
Prior art keywords
piston
stop mechanism
suction
lever
slivers
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
US707680A
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English (en)
Inventor
Carrette Maurice
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.)
Le Blan & Cie Soc
Le Blan & Cie Ste
Original Assignee
Le Blan & Cie Soc
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
Application filed by Le Blan & Cie Soc filed Critical Le Blan & Cie Soc
Application granted granted Critical
Publication of US2500343A publication Critical patent/US2500343A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1616—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material characterised by the detector
    • D01H13/1683—Pneumatic sensing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • 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
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1691—Thread breakage detector means associated with pneumatic cleaning devices, e.g. suction of broken end of yarn

Definitions

  • fly frames generally work with double slivers, that is to say two slivers rolled at the same time so as to combine to form only one, it sometimes happens that onl'yone sliver is being worked and the final result or single is thus defective.
  • the object of the present invention is a stopping mechanism for fly frames comprising, in combination, a suction device of the type mentioned above and means for automatically stopping the fly frame without any interference by the staff, as soon as a sliver snaps .or if a single is produced.
  • the improved stopping mechanism comprises also a signalling device giving warning of the stoppage of the machine. By being warned in such a manner, someone of the stafi can at once see to the snapping or to the single and then set the machine running again. The workers in charge no longer need to have any fear of breakage or of defects that have not been perceived very rapidly; and their time and attention may be reserved entirely for productive work.
  • Fig. 1 is an elevation view, with parts broken away, of a stopping mechanism in accordance with the invention
  • Fig. 1 is a partial plan view of the device corresponding to the position shown in Fig. 1.
  • Fig. 2 is a partial view of the device when the frame has been stopped
  • Fig. 3 shows a modification
  • Figs. 4, 5 and 6 show another modification in three successive stages of operation.
  • Figs. 7 and 8 show further embodiments of the invention.
  • the slivers or strands I delivered by the cylinders 2 are wound upon the bobbins 3 after passing in front of the inlet openings 4 of a suction pipe 5 connected to a fan 6 through a cylinder 1.
  • a perforated piston 8 adapted to move in said cylinder carries a piston rod 9 provided with an enlarged flat part 9' and which is pivotally connected at Ill with a lever ll oscillating around a fixed axis I! of a mercury or other switch 13.
  • the switch [3 is arranged in the circuit I4 of a coil l5 adapted to raise and release a bar 16 which is normally blocked by a stop member I! and pivotally connected at I8 to a bell crank lever l9.
  • the lever 19 is pivoted around a fixed axis 20 and is urged in the direction of the arrow T for instance, by a counterweight 2
  • the vertical arm of lever I9 is adapted to push to the right a shoulder 22 fixed on a releasebar 23 carrying a fork 24 used to shift a power belt -not shown-from a fixed pulley 25 on to a loose pulley 26 and vice versa.
  • the device is completed by a lever 2! oscillating around a fixed axis 28.
  • This lever is hinged by means of a slot on a pin 29, carried by the bar 23. Its lower end embraces the cylindrical part of the piston rod 9 with two legs 21' and 21", a pawl 3
  • the operation is as follows: when a sliver l breaks, the material delivered by the cylinder 2 is at once drawn by the fan 6 and is thus unable to become entangled with the adjacent slivers. Should a single occur, after a very short lapse of time this also is drawn into the pipe 5.
  • the piston 8 is interposed in the suction circuit and when the material enters that circuit it stops up the holes in the piston. Suction by the fan thus results in a difference of pressure on the opposite faces of the piston and the latter moves to the left as shown by arrow 1
  • the rod 9 pushes on the lever II it closes the electric circuit M by rocking the mercury switch l3 (Fig. 2).
  • the electric circuit l4 being closed, the electro-magnet I5 is energizedand it raises the bar IE which is thus set free'from the locking member H; the :bell crank lever 19 is released and under the action of weight'zl it causes the bar 23 to move to the right as shown by arrow f causes the driving belt on the fixed pulley. 25.to pass on to the loose pulley 26.
  • the fly frame is thus caused to stop.
  • Thesignal may be either mechanical, at-fixed. or blinking light, some sound signal or even those three at the same time soas to :attract theL-Qperators-attention and :to indicate the stoppageofthe machine. It also shows him:.the particular machine that has stopped when there is a group of similar machines.
  • the piston-8 is drawn further inward- 1y by the lever 2128.5 itcomesinto contact with the enlarged part9" of the piston rod 9 (see Fig. 1 and Fig. 2) and finally, it partially moves past the suction aperture 35. All thefibers accumulated-on the forward? face of the piston are then dragged into the aperture 35 so as-to clearthe piston.
  • the electromagnet l5 mentioned above is controlled by means of an adjustable differential manometer 36 cooperating with electric contacts 31, 38 arranged in the circuit I4 of the electromagnet.
  • the manometer is operated by therdifierence between the pressures. exerted on the opposite faces of the-piston- 8, its two branches 39, being in communication with the chambers 41 and 42 of the'cylinder.
  • the difference ofjtpressure increases and the-:circuit I4 is closedvwh reby the electromagnet i5 is caused to act as explained'above.
  • Figs. 4 to .fishowanother modification in which a perforated partition or flap 9a c'an swing around an axis 43 in a casing 44, the side faces of which are parallel whereas the lower surface 45 is cylindrical and coaxial with pivot 43.
  • the casing 44 is in communication at 45 with the suction pipe'35 described above.
  • pivot 43 issecureda supportingmem- Said bar by meanslof the fork.24
  • the flap 9a is thus caused to rock beyond the pointAG under the action of a dog 23' fixed on "the bar:23, so;-as to .be cleared from the accumulated' sliver (Fig. 6).
  • the flap 8a is brought to 1 its original position.
  • the switch H which can oscillate around an axis 5!
  • -At 54 that lever is connectedrt'othe bell 55 of a" vacuum meter.
  • moving' vertically in relationank 56 which forms 'a hydraulic joint.
  • a tube 51 is used to connect the inside -ofthe bell fifi with'the forward chamber 42 incylinder 1.
  • Fig. 8 Theconstruction shown in Fig. 8 is the same as that shownin Fig. 7 with the'exception that the reciprocating piston 8 is replaced by a swinging partition or flap-9a as described above with reference to Figs. 4 to *6.
  • the lever 47 secured on the axis 43 of the flap 9a is provided with a pin 48 moving ina slot 59 provided in a sleeve secured on the belt shifting bar 23.
  • the piston 8 or the flap 9a can be a perforated plate or it may be madeof metallic netting, of cloth or of any other substance pervious to air.
  • a stop mechanism comprising suction means adapted to create a fiuid stream, a suction pipe connected with saidsuction means and, provided with openings before which said slivers are adaptedtopass in close relation, a perforated partition-between said suction means and said suction pipe and adapted to be clogged by said slivers when brokenso as to cause a variation of pressure of said stream, stopping means for the frame and controlling means for operating said stopping means under the action of said variation of pressure.
  • a stop mechanism comprising suction means adapted to create a fluid stream, a suction pipe connected with said suction means and provided with openings before which said slivers are adapted. to. pass in close relation, a movable perforated partition between said suction means and said suction pipe and adapted to be clogged by said slivers when broken so as to cause a variation of pressure of said stream, controlling means operated by said variation of pressure, means operatively connected to said controlling means and adaptedto cause said movable partition to be brought in a retracted position for allowing the communication 'between said suction means and suction pipe and stopping means for the frame operated by said controlling means.
  • a stop mechanism for fly frames as claimed in claim 2, in which said movable partition is a reciprocating piston.
  • a stop mechanism for fly frames as claimed in claim 2, in which said movable partition is an oscillating flap 5.
  • a stop mechanism for fly frames as claimed in claim 1, in which said stopping means comprise an electromagnet for actuating thereof and said controlling means comprise a differential manometer the two branches of which are respectively in communication with chambers located on the opposite faces of the partition and provided, with electric contacts arranged in the circuit of said electromagnet.
  • a stop mechanism for fly frames as claimed in claim 1, in which said stopping means comprise an electromagnet for actuating thereof and 20 said controlling means comprise a switch, a vacuum-meter operatively connected with said switch and in communication with the forward face of the partition, said switch being arranged in the circuit of said electromagnet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US707680A 1946-04-23 1946-11-04 Stop mechanism for fly frames Expired - Lifetime US2500343A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR277612X 1946-04-23
FR290746X 1946-07-29

Publications (1)

Publication Number Publication Date
US2500343A true US2500343A (en) 1950-03-14

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ID=26214407

Family Applications (1)

Application Number Title Priority Date Filing Date
US707680A Expired - Lifetime US2500343A (en) 1946-04-23 1946-11-04 Stop mechanism for fly frames

Country Status (4)

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US (1) US2500343A (en))
BE (1) BE473074A (en))
CH (1) CH277612A (en))
FR (1) FR952882A (en))

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704430A (en) * 1950-11-22 1955-03-22 Pneumafil Corp Control for the operation of roving frames
US2769599A (en) * 1951-09-07 1956-11-06 Reiners Walter Thread transporting mechanism
US2780908A (en) * 1952-04-10 1957-02-12 Pneumafil Corp Control systems for spinning and roving frames
US2812632A (en) * 1953-03-10 1957-11-12 Pneumafil Corp Devices for detecting broken ends or strands on textile machinery
US2863276A (en) * 1952-06-19 1958-12-09 Pneumafil Corp Indication of thread breaks in textile machines
US2956392A (en) * 1958-03-04 1960-10-18 Ohnishi Hiromu Break detection apparatus
US3131527A (en) * 1962-05-14 1964-05-05 Dan River Mills Inc Machine and method for making paper yarn
US4375149A (en) * 1979-11-14 1983-03-01 Zinser Textilmaschinen Gmbh Textile machine shut-off device
US4878344A (en) * 1987-08-11 1989-11-07 Zinser Textilmaschinen Gmbh Method and device for auotmatically splicing yarn on a ring spinning machine
JP2017137605A (ja) * 2016-02-05 2017-08-10 株式会社豊田自動織機 精紡機におけるニューマチッククリアラ装置の制御方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE930558C (de) * 1952-06-19 1955-07-18 Ernst Dr-Ing Breuning Vorrichtung zum UEberwachen und Steuern von Textilmaschinen, insbesondere Vorspinnmaschinen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190925796A (en) * 1909-11-09 1910-11-03 William Greenwood Improvements in and connected with Spinning and the like Frames.
US2077525A (en) * 1934-12-12 1937-04-20 Solex Pneumatic safety device for thread working machines
FR851546A (fr) * 1939-03-13 1940-01-10 Dispositif pneumatique applicable aux machines à filer pour l'aspiration des mèches lors des ruptures des fils et pour l'élimination des fils doubles
US2206834A (en) * 1937-10-26 1940-07-02 Ind Rayon Corp Waste collection apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190925796A (en) * 1909-11-09 1910-11-03 William Greenwood Improvements in and connected with Spinning and the like Frames.
US2077525A (en) * 1934-12-12 1937-04-20 Solex Pneumatic safety device for thread working machines
US2206834A (en) * 1937-10-26 1940-07-02 Ind Rayon Corp Waste collection apparatus
FR851546A (fr) * 1939-03-13 1940-01-10 Dispositif pneumatique applicable aux machines à filer pour l'aspiration des mèches lors des ruptures des fils et pour l'élimination des fils doubles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704430A (en) * 1950-11-22 1955-03-22 Pneumafil Corp Control for the operation of roving frames
US2769599A (en) * 1951-09-07 1956-11-06 Reiners Walter Thread transporting mechanism
US2780908A (en) * 1952-04-10 1957-02-12 Pneumafil Corp Control systems for spinning and roving frames
US2863276A (en) * 1952-06-19 1958-12-09 Pneumafil Corp Indication of thread breaks in textile machines
US2812632A (en) * 1953-03-10 1957-11-12 Pneumafil Corp Devices for detecting broken ends or strands on textile machinery
US2956392A (en) * 1958-03-04 1960-10-18 Ohnishi Hiromu Break detection apparatus
US3131527A (en) * 1962-05-14 1964-05-05 Dan River Mills Inc Machine and method for making paper yarn
US4375149A (en) * 1979-11-14 1983-03-01 Zinser Textilmaschinen Gmbh Textile machine shut-off device
US4878344A (en) * 1987-08-11 1989-11-07 Zinser Textilmaschinen Gmbh Method and device for auotmatically splicing yarn on a ring spinning machine
JP2017137605A (ja) * 2016-02-05 2017-08-10 株式会社豊田自動織機 精紡機におけるニューマチッククリアラ装置の制御方法

Also Published As

Publication number Publication date
CH277612A (fr) 1951-09-15
BE473074A (en))
FR952882A (fr) 1949-11-25

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