DD237296A1

DD237296A1 - FADENBRUCHMELDEVORRICHTUNG, ESPECIALLY FOR RINGSPINNMASCHINEN

Info

Publication number: DD237296A1
Application number: DD27635185A
Authority: DD
Inventors: Peter Sproed; Wilfried Gruner; Gert Roland; Volker Roland
Original assignee: Textima Veb K
Priority date: 1985-05-15
Filing date: 1985-05-15
Publication date: 1986-07-09

Abstract

Die Erfindung ist anwendbar an Textilmaschinen, insbesondere an Ringspinnmaschinen, bei denen jeder Spinnstelle ein ortsfester Fadenbruchsensor zugeordnet ist und eine Prozessdatenerfassung sowie ein Luntenstopp erfolgt. Ziel der Erfindung ist es, Verluste an Fasermaterial einzuschraenken, Wickelbildungen zu vermeiden und Verlustzeiten zu verringern. Es wurde eine Fadenbruchmeldevorrichtung entwickelt, welche mit aeusserst geringem Aufwand an Bauelementen und Leitungsmaterial gleichzeitig den Luntenstopp und die Datenerfassung fuer jede Spinnstelle ausloest. Innerhalb der Ringspinnmaschine ist ein umlaufendes, endloses Band installiert, an dem mindestens zwei Dauermagneten im gleichen Abstand befestigt sind, wobei sich im Bereich des Kraftlinienfeldes derselben fuer jede Spinnstelle ein geschuetzter Kontakt befindet, der ueber eine Datensammelleitung mit dem Datenspeicher verbunden ist. Im Rasterabstand der geschuetzten Kontakte ist das endlose Band mit Markierungen versehen, die ein in Bandnaehe angeordneter Synchronisationssensor, der mit einer Taktbildungseinrichtung und einem Taktzaehler verbunden ist, abtastet. FigurThe invention is applicable to textile machines, in particular to ring spinning machines, in which each spinning station is associated with a stationary thread breakage sensor and a process data acquisition and a Luntenstopp takes place. The aim of the invention is to limit losses of fiber material, to avoid winding formation and to reduce loss times. It was developed a yarn breakage detection device, which at the same time triggers the Luntenstopp and the data acquisition for each spinning station with very little effort on components and line material. Within the ring spinning machine, a revolving, endless belt is installed, to which at least two permanent magnets are mounted at the same distance, wherein in the region of the line of force there is a protected contact for each spinning station, which is connected via a data bus to the data memory. At the pitch of the protected contacts, the endless belt is provided with markings which scan a near-tape synchronization sensor connected to a clock generator and a clock counter. figure

Description

iern 11; 12 von der vorher gespannten Druckfeder 13 nach vorn bewegt wird. Der an der Schubstange 10 angelenkte Keil 14 iebtsich bei dieser Vorwärtsbewegung zwischen die Eingangswalze 15 und den Druckroller 16. Er verhindert den Transport Lunte 17 bis zur Fadenbruchbehebung mit der dabei erforderlichen manuellen Rückwärtsbewegung der Schubstange 10. Die ickfeder 13 umfaßt die Schubstange 10 und liegt zwischen dem Lager 12 und dem Stellring 18. Andern Stellring 18 sitzt der llhebel 19, der bei der Vorwärtsbewegung der Schubstange 10 durch die Druckfeder 13 den Umschalter 3 betätigt und damit ι Zugmagnet 4 ausschaltet. Innerhalb der Ringspinnmaschine ist ein umlaufendes, endloses Band 21 installiert, welches von η mit konstanter Drehzahl laufenden Motor 20 angetrieben wird. Dieses endlose Band 21 erstreckt sich längs der gspinnmaschine und wird an alle Spinnstellen vorbeigeführt. An diesem umlaufenden, endlosen Band 21 sind mindestens b\ Dauermagnete 22 im gleichen Abstand zueinander befestigt. Nahe der Umlaufbahn der Dauermagnete 22 ist in deren iftlinienbereich für jede Spinnstelle ein geschützter Kontakt 23 angeordnet, der jeweils mit dem Umschalters und der tensammelleitung 24 verbunden ist. Bei dem Vorbeiführen des betreffenden Dauermagneten 22 an den geschützten ntakten 23 wird deren Kontakt geschlossen und öffnet sich nach dem Durchgang des Dauermagneten 22 wieder. Ist ein. Jenbruch eingetreten und der Luntenstopp betätigt, so ist vom Stellhebel 19 bei der Bewegung der Schubstange 10 nach vorn • Umschalter 3 betätigt worden. Vom Fadenbruchsensor 1 wird das Fadenbruchsignal über den Verstärker 2, den Umschalter nd den geschützten Kontakt 23 wärhrend der Einwirkung des Dauermagneten 22 der Datensammelleitung 24 und somit dem tenspeicher 25 zugeleitet. Das umlaufende, endlose Band 21 weist eine im Rasterabstand der geschützten Kontakte 23 gebrachte Markierung auf, wie beispielsweise Lochungen, die von dem Synchronisationssensor 26 abgetastet wird. Die dabei /vonnenen Impulse übermittelt der Synchronisationssensor 26 der Taktbildungseinrichtung 27, deren Ausgangssignal den ctzähler 28 angsteuert. Von dem Taktzähler 28 wird der Datenspeicher 25 so adressiert, daß jede Information der tensammeileitung 24 einem definierten Speicherplatz zugeordnet und dort abgelegt wird. Nur wenn der Zählstand des ctzählers 28 mit dem vorgegebenen Sollwert übereinstimmt, sind die im Datenspeicher 25 enthaltenen Daten durch externe ressierung an den Eingängen 29 über die Datenleitung 30 abrufbar. Mittels des geschützten Kontaktes 32 wird diese denbruchmeldevorrichtung überwacht und die Zählerperiode gestartet. Zur störsicheren Arbeitsweise der Vorrichtung sind eckmäßig die Widerstände 31 eingesetzt worden. Anstelle der Daeurmagneten 22 können verständlicherwejse auch optische inden und für die geschützten Kontakte 23 optoelektronische Sender und Empfänger Anwendung finden.11; 12 is moved forward of the previously tensioned compression spring 13. The hinged to the push rod 10 wedge 14 iebtsich in this forward movement between the input roller 15 and the pressure roller 16. It prevents the transport sliver 17 to thread breakage with the necessary manual backward movement of the push rod 10. The ickspring 13 includes the push rod 10 and is located between the bearing 12 and the collar 18. Other collar 18 sits the llhebel 19, which operates the switch 3 in the forward movement of the push rod 10 by the compression spring 13 and thus ι pull magnet 4 turns off. Within the ring spinning machine, a revolving, endless belt 21 is installed, which is driven by η constant-speed motor 20. This endless belt 21 extends along the ginning machine and is guided past all spinning stations. At this circumferential, endless belt 21 at least b \ permanent magnets 22 are attached at the same distance from each other. Near the orbit of the permanent magnets 22 a protected contact 23 is arranged in the iftlinienbereich for each spinning station, which is connected in each case with the switch and the tensile manifold 24. When passing the relevant permanent magnet 22 to the protected ntakten 23 whose contact is closed and opens after the passage of the permanent magnet 22 again. Is a. Jenbruch occurred and the Luntenstopp actuated, it has been actuated by the lever 19 during the movement of the push rod 10 forward • switch 3. From the yarn breakage sensor 1, the yarn breakage signal via the amplifier 2, the switch nd the protected contact 23 during the action of the permanent magnet 22 of the data bus 24 and thus the memory 25 supplied. The circumferential, endless belt 21 has a mark placed in the pitch of the protected contacts 23, such as perforations, which is scanned by the synchronization sensor 26. The case of internal pulses transmitted by the synchronization sensor 26 of the clock forming device 27, whose output drives the ctzähler 28. From the clock counter 28, the data memory 25 is addressed so that each piece of information 24 information of the accumulation line assigned to a defined memory and stored there. Only when the count of ctzählers 28 coincides with the predetermined target value, the data contained in the data memory 25 by external feedback at the inputs 29 via the data line 30 are retrievable. By means of the protected contact 32, this denbruchmeldevorrichtung is monitored and started the counter period. For interference-free operation of the device Eckback, the resistors 31 have been used. Instead of the Daeurmagneten 22 understandably also optical inden and for the protected contacts 23 optoelectronic transmitter and receiver application.

Claims

Invention claim:

1. yarn breakage signaling device, in particular for ring spinning machines with process data acquisition, Luntenstopp and each spinning station associated stationary thread breakage sensor, characterized in that within the ring spinning a circumferential, endless belt (21) is installed, attached to the at least two permanent magnets (22) at the same distance are, wherein in the region of the line of force of the same for each spinning station, a protected contact (23) is located, which is connected when passing a permanent magnet (22) via a data bus (24) to the data memory (25) for the data transfer.

2. yarn breakage detection device according to item 1, characterized in that the endless belt (21) is provided with in the pitch of the protected contacts (23) mounted markings.

3. yarn breakage signaling device according to the points 1 and 2, characterized in that the scanning of the marks of the endless belt (21 (from a stationary synchronization sensor (26) takes place, which is arranged in the vicinity of the endless belt (21) and with a clock forming means (27 ) and a clock counter (28) is connected.

For this 1 page drawing

Field of application of the invention

The invention relates to a yarn breakage signaling device, in particular for ring spinning machines, in which each spinning station is assigned a stationary thread breakage sensor and a process data acquisition and Luntenstopp done.

Characteristic of the known technical solutions

For monitoring a current sequence of operations of a textile machine on yarn breakage, it is known to provide at the workstations a probe for contactless recording of electrical signals that are generated with the correct thread run and fail if there is no thread. The guided along a guide rail at the work stations probe is movable on each side by means of a metallic drawstring as a conductor along the textile machine, said metallic drawstring forms the electrical connection to the sensing element and the corresponding signal a stationary evaluation zuleitet (DE-OS 2731 019). However, this wandering probe is only for data acquisition and display of the determined yarn breakage, an immediate Luntenstopp does not occur. The fiber material is fed until the thread break has been corrected. In addition, there is still the risk of winding on the output roller of the drafting system. Such a winding formation is in automatic operation not or only to eliminate manually. Furthermore, thread breakage sensors are known, which trigger only one Luntenstopp, but no process data acquisition takes place (DE-OS3145798). The disadvantage is that no registration takes place and the corresponding spinning station is not recognized as a problem.

Object of the invention

It is the object of the invention to avoid loss of fiber material and the formation of winding formations and to limit loss times.

Explanation of the essence of the invention

The essence of the invention is to provide a yarn breakage detection device which simultaneously triggers the Luntenstopp and the data acquisition for each spinning station with a very low cost of components and line material. This has been achieved by a circulating, endless belt is installed inside the ring spinning machine, to which at least two permanent magnets are mounted at the same distance, being in the region of the force line field of the same for each spinning position, a protected contact, via a data bus to the data memory connected is. The circulating, endless band is provided with markings at the pitch of the protected contacts. The scanning of these marks of the endless belt is made by a stationary located near the endless belt synchronization sensor, which is connected to a clock generator and a clock counter.

exemplary

On the basis of an embodiment illustrative drawing, the invention will be described in more detail. The drawing shows the yarn breakage detection device with Luntenstopp in a simplified representation.

Between the drafting system output and the spindle, a yarn breakage sensor 1 is mounted for each spinning station, which triggers the Luntenstopp at yarn breakage. This is done so that the pull magnet 4 is driven by the yarn breakage sensor 1 via the amplifier 2 and the switch 3 at yarn break. The armature of the pull magnet 4 is connected to the pawl 6 at the sperm nose 5. When driving the tension magnet 4 whose armature is pulled down, and the pawl 6 pivots about its pivot point 7 against the force of the tension spring 8 to the stop 9, and the locking lug 5 releases the push rod 10, which in the