PL99938B1 - DEVICE FOR DETECTING ERRORS IN THE OPERATING PROCESS - Google Patents

DEVICE FOR DETECTING ERRORS IN THE OPERATING PROCESS Download PDF

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Publication number
PL99938B1
PL99938B1 PL17192374A PL17192374A PL99938B1 PL 99938 B1 PL99938 B1 PL 99938B1 PL 17192374 A PL17192374 A PL 17192374A PL 17192374 A PL17192374 A PL 17192374A PL 99938 B1 PL99938 B1 PL 99938B1
Authority
PL
Poland
Prior art keywords
winding
sensor
core
operating process
axis
Prior art date
Application number
PL17192374A
Other languages
Polish (pl)
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 filed Critical
Priority to PL17192374A priority Critical patent/PL99938B1/en
Priority to CH659575A priority patent/CH594767A5/xx
Priority to FR7517445A priority patent/FR2274719A1/en
Priority to DE19752525071 priority patent/DE2525071C3/en
Priority to GB2458975A priority patent/GB1502183A/en
Priority to CS407675A priority patent/CS178843B2/en
Priority to IT2431275A priority patent/IT1038984B/en
Priority to DD18660775A priority patent/DD118909A5/xx
Priority to JP7140275A priority patent/JPS5117365A/en
Publication of PL99938B1 publication Critical patent/PL99938B1/en

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Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B35/00Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/10Indicating, warning, or safety devices, e.g. stop motions
    • D04B35/18Indicating, warning, or safety devices, e.g. stop motions responsive to breakage, misplacement, or malfunctioning of knitting instruments

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Description

Przedmiotem wynalazku jest urzadzenie do wy¬ krywania bledów procesu dzialania na szydelkar- kach cylindrycznych i maszynach ponczoszniczych.Z opisu patentowego NRD nr 100 759 dotyczacego sposobu kontroli elementów maszyn wlókienniczych 5 w szczególnosci igiel na szydelkarkach cylindrycz¬ nych znane jest urzadzenie do równoczesnego nad¬ zorowania haczyków i jezyczków igiel dziewiar¬ skich w postaci czujnika indukcyjnego, skladaja¬ cego sie z zelaznego rdzenia i z nawinietej na nim 10 cewki. Za pomoca cewki wytwarzany jest strumien magnetyczny staly lub o okreslonej czestotliwosci, przy czym obwód magnetyczny zamyka sie poprzez posiadajacy w przyblizeniu ksztalt litery C zelazny rdzen i szczeliny powietrzne pomiedzy jednym kon- 15 cem rdzenia i haczykiem igly oraz pomiedzy drugim koncem rdzenia i jezyczkiem igly w pozycji maksy¬ malnego otwarcia tego jezyczka.Uszkodzenia haczyka lub jezyczka igly powoduja zmiany wielkosci szczelin powietrznych i zwiazana 20 z tym zmiane oporu magnetycznego i indukcyjnosci cewki, co jest wykorzystywane do wykrywania ta¬ kich deformacji metodami znanymi w technice slabopradowej, na przyklad za pomoca ukladu mostkowego. Zastosowanie urzadzenia wymaga 25 zainstalowania czujnika w obszarze pracy igiel i elektrycznego polaczenia go z odpowiednio dobra¬ nym ukladem analizujacym. Zamykanie obwodu magnetycznego równoczesnie poprzez dwie szczeliny powietrzne powoduje duza wrazliwosc czujnika na 30 wszelkie niedokladnosci w ustawieniu haczyków i jezyczków igiel, równiez takie, jakie nie sa jesz¬ cze przyczynami zaklócen procesu dziania.Prawidlowe dzialanie urzadzenia wymaga duzej dokladnosci ustawienia czujnika wzgledem igiel, ich haczyków i jezyczków. Utrzymywanie takiej do¬ kladnosci polozenia czujnika w czasie jego eksploa¬ tacji jest utrudnione w zwiazku z wystepowaniem sil odsrodkowych dzialajacych na jezyczek i po¬ wiekszaniem sie luzów w zamkach wymuszajacych kolejne polozenie igiel. Wykrywalnosc zaklócen i bledów procesu dziania jest ograniczona, czego przykladem moze byc sytuacja zakleszczania sie jezyczka igly w polozeniu maksymalnego otwarcia tego jezyczka. Urzadzenie w takiej sytuacji nie za¬ sygnalizuje bledu, mimo, ze tworzenie splotu dzia¬ niny zostanie przerwane.Urzadzenie wedlug wynalazku posiada czujnik generacyjny reagujacy na wahadlowy ruch jezyczka wzgledem igly oraz polaczony elektrycznie z tym czujnikiem odpowiednio dobrany uklad analizujacy, w którym przeliczane sa kolejne impulsy induko¬ wane w czujniku. Stosowanie urzadzenia wedlug wynalazku pozwala ograniczyc zakres kontroli tylko do obserwacji ruchów jezyczka igly przy jednocze¬ snym uzyskaniu wykrywalnosci wszelkich zaklócen procesu * tworzenia splotu dzianiny, niezaleznie od przyczyn wywolujacych te zaklócenia.Na zalaczonym rysunku pokazane zostalo w wi^ doku przykladowe wykonanie czujnika wedlug wy-3 99 938 4 nalazku i usytuowanie czujnika wzgledem igly dziewiarskiej.Cale urzadzenie wedlug wynalazku sklada sie z czujnika generacyjnego i polaczonego z nim elek¬ trycznie nie uwidocznionego rysunku elektrycznego analizatora. Czujnik posiada rdzen 1 wsuniety do wnetrza uzwojenia 2 oraz zamocowany na uzwojte- niu 2 magnes staly 3. Rdzen 1 posiada nabiegunnik 4 splaszczony w ksztalcie lopatki. Magnes 3, którego os magnetyczna jest prostopadla do osi cewki zajmuje takie polozenie, ze jego srodek wraz z osia uzwojenia 2 wyznacza plaszczyzne prosto¬ padla do plaszczyzny nabiegunnika 4 w srodku jego szerokosci.Zastosowanie urzadzenia wedlug wynalazku po¬ lega na zainstalowaniu jednego lub kilku czujników w takim polozeniu, by ruchy zamykania jezyczków igiel wykonywane byly w polu magnetycznym czujnika lub czujników. Czujnik laczy sie elektrycz¬ nie z odpowiednio dobranym znanym analizatorem elektronicznym umieszczonym w dowolnym miej¬ scu przy maszynie dziewiarskiej lub obok niej.Brak kolejnego impulsu w znany sposób wykorzy¬ stuje sie do zasygnalizowania bledu i zatrzymania maszyny. PL PL PL PL PL PLThe subject of the invention is a device for detecting errors in the operation process on cylindrical crocheting machines and punching machines. hooks and pins of knitting needles in the form of an inductive sensor, consisting of an iron core and a coil wound thereon. A magnetic flux is generated by means of a coil that is constant or of a defined frequency, the magnetic circuit being closed by an approximately C-shaped iron core and air gaps between one end of the core and the needle hook and between the other end of the core and the needle tip of the needle. the position of the maximum opening of this tongue. Damage to the hook or the needle tongue causes changes in the size of the air gaps and the associated change in the magnetic resistance and inductance of the coil, which is used to detect such deformations by methods known in the low-wave technique, for example by means of a circuit sternum. The use of the device requires the installation of a sensor in the needle working area and its electrical connection to a suitably selected analyzing system. Closing the magnetic circuit simultaneously through two air gaps causes high sensitivity of the sensor to any inaccuracies in the position of the hooks and pins of the needles, including those that are not yet the cause of disturbances in the operation process. and little tongues. Maintaining such an accuracy of the position of the sensor during its operation is difficult due to the occurrence of centrifugal forces acting on the pin and the increase of play in the locks forcing the next position of the needles. The detection of disturbances and errors in the knitting process is limited, an example of which may be the situation of the needle stick jamming in the position of the maximum opening of the needle. In such a situation, the device does not indicate an error, even though the formation of the weave of the plot will be interrupted. pulses induced in the sensor. The use of the device according to the invention allows to limit the scope of control only to the observation of the movements of the needle, while at the same time obtaining the detection of any disturbances in the process * of creating the weave of the knitted fabric, regardless of the causes causing these disturbances. 3 99 938 4 of the invention and the positioning of the sensor with respect to the knitting needle. The whole device according to the invention consists of a generator sensor and an electrically not shown drawing of an electric analyzer connected thereto. The sensor has a core 1 inserted into the inside of the winding 2 and a permanent magnet 3 mounted on the winding 2. The core 1 has a pole piece 4 flattened in the shape of a blade. The magnet 3, the magnetic axis of which is perpendicular to the axis of the coil, occupies such a position that its center, together with the axis of the winding 2, defines a plane perpendicular to the plane of the pole piece 4 in the middle of its width. in such a position that the movements of closing the pins of the needles are carried out in the magnetic field of the sensor or sensors. The sensor is electrically connected to a suitably selected known electronic analyzer placed anywhere near or near the knitting machine. The absence of another pulse is used in a known manner to signal an error and stop the machine. PL PL PL PL PL PL

Claims (1)

1. Zastrzezenie patentowe Urzadzenie do wykrywania bledów procesu dzia¬ lo nia skladajace sie z czujnika i polaczonego z nim elektrycznie ukladu analizujacego, znamienne tym, ze czujnik posiada rdzen (1) umieszczony wewnatrz uzwojenia (2) i polaczony trwale z zewnetrzna czes¬ cia uzwojenia (2) magnes staly (3), przy czym jeden 15 nabiegunnik (4) rdzenia (1) jest splaszczony w ksztalcie lopatki, a magnes staly (3) jest tak usy¬ tuowany, ze jego os magnetyczna jest prostopadla do osi uzwojenia (2), a jego srodek geometryczny i os symetrii uzwojenia (2) wyznaczaja plaszczyzne 20 prostopadla do plaszczyzny nabiegunnika (4). LDA — Zaklad 2 — Typo, zam. 2163/78 — 100 egz. Cena 45 zl PL PL PL PL PL PL1. Patent claim A device for detecting errors in the operating process consisting of a sensor and an electrically connected analyzing system, characterized in that the sensor has a core (1) placed inside the winding (2) and permanently connected to the outer part of the winding (2) a permanent magnet (3), where one pole piece (4) of the core (1) is flattened in the shape of a blade and the permanent magnet (3) is positioned such that its magnetic axis is perpendicular to the axis of the winding (2). ), and its geometric center and the axis of symmetry of the winding (2) define the plane perpendicular to the plane of the pole piece (4). LDA - Plant 2 - Typo, dom. 2163/78 - 100 copies Price 45 PLN PL PL PL PL PL PL PL
PL17192374A 1974-06-14 1974-06-14 DEVICE FOR DETECTING ERRORS IN THE OPERATING PROCESS PL99938B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
PL17192374A PL99938B1 (en) 1974-06-14 1974-06-14 DEVICE FOR DETECTING ERRORS IN THE OPERATING PROCESS
CH659575A CH594767A5 (en) 1974-06-14 1975-05-22
FR7517445A FR2274719A1 (en) 1974-06-14 1975-06-04 METHOD OF DETECTION OF KNITTING FAULTS ON KNITTING MACHINES, DEVICE FOR THE APPLICATION OF THIS PROCESS
DE19752525071 DE2525071C3 (en) 1974-06-14 1975-06-05 Machine for the production of knitted fabrics with a guard to monitor the needles
GB2458975A GB1502183A (en) 1974-06-14 1975-06-09 Faults detecting method for knitting machines and device for applying this method
CS407675A CS178843B2 (en) 1974-06-14 1975-06-10 Method of and apparatus for detecting faults in knitting operation on knitting machines
IT2431275A IT1038984B (en) 1974-06-14 1975-06-12 PROCEDURE FOR DETECTION OF DEFECTS IN THE PROCESSES OF KNITTING ON KNITTING MACHINES AND DEVICE FOR THE APPLICATION OF THIS PROCEDURE
DD18660775A DD118909A5 (en) 1974-06-14 1975-06-12
JP7140275A JPS5117365A (en) 1974-06-14 1975-06-12 Amikiniokeru henseikateinoamikizukenshutsuhoho oyobi sochi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL17192374A PL99938B1 (en) 1974-06-14 1974-06-14 DEVICE FOR DETECTING ERRORS IN THE OPERATING PROCESS

Publications (1)

Publication Number Publication Date
PL99938B1 true PL99938B1 (en) 1978-08-31

Family

ID=19967785

Family Applications (1)

Application Number Title Priority Date Filing Date
PL17192374A PL99938B1 (en) 1974-06-14 1974-06-14 DEVICE FOR DETECTING ERRORS IN THE OPERATING PROCESS

Country Status (9)

Country Link
JP (1) JPS5117365A (en)
CH (1) CH594767A5 (en)
CS (1) CS178843B2 (en)
DD (1) DD118909A5 (en)
DE (1) DE2525071C3 (en)
FR (1) FR2274719A1 (en)
GB (1) GB1502183A (en)
IT (1) IT1038984B (en)
PL (1) PL99938B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007532A1 (en) * 1989-11-14 1991-05-30 Nauchno-Proizvodstvennoe Obiedinenie 'vsesojuzny Nauchno-Issledovatelsky Institut Trikotazhnoi Promyshlennosti' (Npo Vniitp) Needle counter
CZ303891B6 (en) * 2011-10-12 2013-06-12 Technická univerzita v Liberci Method of determining damage of knitting machine tumbler needle and/or break of thread assigned thereto
DE102022115321A1 (en) 2022-06-20 2023-12-21 Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Körperschaft des öffentlichen Rechts Needle system for a textile manufacturing machine
CN115262071B (en) * 2022-07-21 2023-06-23 武汉纺织大学 High-speed magnetic suspension knitting needle array control system and control method thereof

Also Published As

Publication number Publication date
DE2525071B2 (en) 1978-06-01
DE2525071A1 (en) 1975-12-18
JPS5117365A (en) 1976-02-12
CS178843B2 (en) 1977-10-31
DE2525071C3 (en) 1979-02-08
FR2274719B1 (en) 1978-10-13
IT1038984B (en) 1979-11-30
FR2274719A1 (en) 1976-01-09
CH594767A5 (en) 1978-01-31
GB1502183A (en) 1978-02-22
DD118909A5 (en) 1976-03-20

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