US2804744A - Supervision and control of textile manufacturing processes - Google Patents

Supervision and control of textile manufacturing processes Download PDF

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Publication number
US2804744A
US2804744A US319707A US31970752A US2804744A US 2804744 A US2804744 A US 2804744A US 319707 A US319707 A US 319707A US 31970752 A US31970752 A US 31970752A US 2804744 A US2804744 A US 2804744A
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US
United States
Prior art keywords
contact
control
sliver
roving
current
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
US319707A
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English (en)
Inventor
Breuning Ernst
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2804744A publication Critical patent/US2804744A/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
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/10—Indicating, warning, or safety devices, e.g. stop motions
    • D04B35/14—Indicating, warning, or safety devices, e.g. stop motions responsive to thread breakage
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/10—Indicating, warning, or safety devices, e.g. stop motions

Definitions

  • the textile sliver is controlled with regard to any differences in resistance which may occur by being passed between two contact devices as, for example, rollers which are connected in the circuit of one part of a Wheatstone bridge and the current variations brought about by the variations in resistance are used to control the textile manufacturing process.
  • This method fails in very many cases inasmuch as many materials cannot be subjected to a mechanical contact pressure or else the arrangement of contact devices onthe prescribed path of the material makes the operating of the machine difficult.
  • One object of this invention is to overcome the above mentioned disadvantages and efiect the supervision and control of textile manufacturing processes without any contacting of the material such 'as the sliver or roving during normal operations.
  • Fig. 1 diagrammatically shows an embodiment of an apparatus in accordance with the invention for indicating breaks in a roving or the moving of the roving out of a predetermined path of travel.
  • Fig. 2 diagrammatically shows an embodiment or an arrangement in accordance with the invention for operating a control device.
  • the material in direct contrast to the prior known electrical control devices and methods, is not used as an insulator between electrodes or for continuously passing current between contact electrodes, but is used as a conductor to close a normally open circuit.
  • the material such as the sliver or roving moves along its normal predetermined path, it will not contact an electrode or any other contact member.
  • the electrode contact member in accordance with the invention is positioned at the limits of this normal path so that the material, such as the sliver or roving will come in contact therewith when the same breaks or passes out of the predetermined path. This contacting will then serve to close a normally open circuit which has a source of current and the source of current will pass through the circuit and may be utilized to give an electrical indication or for control actuation.
  • the material is not contacted or influenced in any way during normal operation and the contacting with the electrode or contact member only occurs when the normal operation is interrupted, i. e. when the material passes out of the predetermined or desired spacial limits or breaks.
  • a source of current may lead through an indicating device to a contact member positioned below a roving or sliver.
  • a contact member positioned below a roving or sliver.
  • no current will pass.
  • the sliver or roving breaks or becomes too loose it will contact the contact member.
  • the sliver or roving must be connected to ground, as for example, by means of a machine through which it passes or by means of another grounded member which it will contact when breaking or passing out of the desired path.
  • the sliver or roving may be connected to a lead which leads back to complete the circuit.
  • the circuit is completed by the current passing through the sliver or roving through ground or through the re- 3 turn circuit.
  • the current thus passing will actuate the indicating device such as a light, hell or the like.
  • the place of the indicating device is, of course, possible to have a control actuation device for shutting ,down the machine or the like.
  • Fig. l the roving 1 moves in aiiyer from the drawing rolls '2- and 3 to the spindle 4.
  • aconductive body 5 supported on highquality insulators 6.
  • Theconductive body 5 is connected by a wire 7 with the electric observation or control instrumcnt'S.
  • aconductive grounded body 12 can be provided below the roving 1 at a distance of a few centimeters from same, said body considerably shortening the current path through the overlying part of the roving.
  • Fig. 2 there is shown an arrangement which opcrates not only as indicating apparatus but also as control apparatus. 'In'this connection, an electrostatic relay is used.
  • the wire 7 is connected with the high-quality insulated conductive stationary-body 16; opposite it, the conductive'body 17 is movablyarra'nged, said body being able to move towards 'the body '16 around a supporting point 18.
  • a contact 1i9 which is opposite 'a stationary,preferably adjustable conta'cfi-ZO. -As soon as a voltage drop-takes place on fthe high ohrnic i esistance 14, the body 17 is electrostatically attracted by body 16.
  • a source of current 21 which is conductively connected on the one hand with the body 17 via the pin 18 and on the other hand with an electrostatic indicating or control device 22 brings about in this case an actuating current in apparatus 22.
  • the speed of response of the supervisory or control apparatus can, in accordance with a further feature of the invention, ee brought to a desired amount in the manner that the electric time constant which is determined essentially "by the capacitance of the contact electrode, the connecting line of same to the indicating or control apparatus and the electrometer arrangement and also by the resistance or the material and of the high ohmic resistance is brought to the desired value by suitable dimensioning of the measuring length of the material and/or suitable dimensioning of the high ohmic resistance and/or by the connection of high quality insulated condenser.
  • the contact electrode can be developed as a hollow body and'provided with gas passage openings. In that way, it is possible by using gas under pressure to prevent the depositing of particles of material on the contact electrode or when using suction to draw the particles of material otf above the contact electrode.
  • control supervision as used in this applica-tion 'isi'ntended to designate use of the current for at least one of-electrical indication and of control actuation.
  • Apparatus according to claim 4 in which said last mentioned means comprise grounded means contacting said textile material.
  • Apparatus according to claim 4 which includes indicator means positioned in said open circuit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US319707A 1951-11-19 1952-11-10 Supervision and control of textile manufacturing processes Expired - Lifetime US2804744A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE311764X 1951-11-19

Publications (1)

Publication Number Publication Date
US2804744A true US2804744A (en) 1957-09-03

Family

ID=6131436

Family Applications (1)

Application Number Title Priority Date Filing Date
US319707A Expired - Lifetime US2804744A (en) 1951-11-19 1952-11-10 Supervision and control of textile manufacturing processes

Country Status (5)

Country Link
US (1) US2804744A (en(2012))
BE (1) BE515640A (en(2012))
CH (1) CH311764A (en(2012))
FR (1) FR1065158A (en(2012))
GB (1) GB743905A (en(2012))

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3272048A (en) * 1963-08-10 1966-09-13 Newmark Ltd Louis Apparatus for the detection of broken yarn and the like on textile machines
US3313192A (en) * 1964-07-17 1967-04-11 Archer Anthony Hugh Apparatus for the detection of broken yarn and the like on textile machines
US3599529A (en) * 1970-04-09 1971-08-17 North American Rockwell Defective strand detector means for braiding machines
US4221109A (en) * 1976-10-02 1980-09-09 W. Schlafhorst & Co. Traveling thread-joining device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH474583A (de) * 1966-06-02 1969-06-30 Luwa Ag Verstärkereingangsschaltung für kapazitive Messfühler in einer Überwachungseinrichtung für Textilmaschinen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330212A (en) * 1942-03-04 1943-09-28 Raalte Company Inc Van Stop means for textile machines
US2371110A (en) * 1945-03-06 Stop means for -textile machines
US2400837A (en) * 1944-03-04 1946-05-21 Raalte Company Inc Van Method of controlling textile machines
US2542331A (en) * 1944-07-25 1951-02-20 Johannes N Hiensch Process and apparatus for drafting uniform roving

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371110A (en) * 1945-03-06 Stop means for -textile machines
US2330212A (en) * 1942-03-04 1943-09-28 Raalte Company Inc Van Stop means for textile machines
US2400837A (en) * 1944-03-04 1946-05-21 Raalte Company Inc Van Method of controlling textile machines
US2542331A (en) * 1944-07-25 1951-02-20 Johannes N Hiensch Process and apparatus for drafting uniform roving

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3272048A (en) * 1963-08-10 1966-09-13 Newmark Ltd Louis Apparatus for the detection of broken yarn and the like on textile machines
US3313192A (en) * 1964-07-17 1967-04-11 Archer Anthony Hugh Apparatus for the detection of broken yarn and the like on textile machines
US3599529A (en) * 1970-04-09 1971-08-17 North American Rockwell Defective strand detector means for braiding machines
US4221109A (en) * 1976-10-02 1980-09-09 W. Schlafhorst & Co. Traveling thread-joining device

Also Published As

Publication number Publication date
FR1065158A (fr) 1954-05-20
GB743905A (en) 1956-01-25
CH311764A (de) 1955-12-15
BE515640A (en(2012))

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