EP0265755A2 - Method and apparatus for the determination of bale limits in bale openers - Google Patents

Method and apparatus for the determination of bale limits in bale openers Download PDF

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Publication number
EP0265755A2
EP0265755A2 EP19870114849 EP87114849A EP0265755A2 EP 0265755 A2 EP0265755 A2 EP 0265755A2 EP 19870114849 EP19870114849 EP 19870114849 EP 87114849 A EP87114849 A EP 87114849A EP 0265755 A2 EP0265755 A2 EP 0265755A2
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European Patent Office
Prior art keywords
bale
limits
milling
determination
milling head
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EP19870114849
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German (de)
French (fr)
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EP0265755A3 (en
Inventor
Hubert A. Dipl.-Ing. Dipl.-Wirtsch.-Ing. Hergeth
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Hergeth Hubert A Dipl-Ing Dipl-Wirtsch-Ing
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Individual
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00—Breaking or opening fibre bales
    • D01G7/06—Details of apparatus or machines
    • D01G7/10—Arrangements for discharging fibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00—Breaking or opening fibre bales
    • D01G7/04—Breaking or opening fibre bales by means of toothed members

Definitions

  • the invention relates to a method for determining the height and length of textile fiber bale groups, which are put together for a bale show.
  • Bale milling machines are known which mill fiber bales, which are put together to form a bale display, by means of toothed opening disks.
  • the opening device is moved by means of a chassis on the bales set up in a line.
  • the bale milling machine is positioned along the travel path and the height, as is usual in other branches of industry, by means of position measuring devices and programmable logic controllers.
  • the difficulty lies in the detection of the height and length position of the bale template, which is assembled into blocks.
  • the bales do not have a uniform surface and have different color nuances.
  • DE 33 35 793 also describes averaging by means of light barriers which, by virtue of their arrangement, permit milling which is known from the tactile gratings during reading travel.
  • the scanning with light barriers and averaging is not only very complex, it also does not allow the detection of the desired material core height. Some of the bales are loosened up very flaky on their surface. These loosenings are detected as a surface by light barriers. However, the denser material core is important for milling. Through the light scanning, wrong, higher heights are entered into the computer. This leads to a greatly reduced production or to incorrect mixes in the initial phase of the milling process.
  • DE 33 35 792 describes a method in which the start and end limits of the bale rows set up are determined directly by a sensor and are assigned to the measured distance, as is known from the height measurement, in the control computer.
  • the method described can only be used if gaps are left between the individual bale boundaries. It is not possible to take the bale structure into account. The light barriers tend to become dirty and malfunction due to small flakes.
  • the object of the invention is to provide a method for determining the surface boundaries.
  • the invention serves both for detecting the height, the length and the structure of the bale, or the assembled bale blocks.
  • the detection of the bale block limitation takes place indirectly by the detection of the milled fiber flock flow.
  • the flock flow can be detected by a light barrier in the milling head or on the milling head - delivery link.
  • the flock flow can also be done indirectly by measuring the air flow in the milling head or the connecting section. If fibers are milled, air pressure and speed change in the milling head and on the connecting section. Another conceivable possibility is to measure the floc flow using capacitive sensors or a sensor plate in the air flow.
  • the measuring process is as follows: To measure the bale height, the milling device is located above the point to be measured. The milling head is not yet in contact with the surface of the bale, so that no fibers are being conveyed. If the milling head is lowered, the plucking rollers come into engagement with the bale surface and the flake flow begins. The beginning of the flocculation is determined by a method described above and communicated to the programmable logic controller. At the same time as the flocculation, the value of the incremental encoder for the height is registered in the programmable logic controller.
  • the fiber flow detection also serves to detect the length limitation of a bale block. If the milling head mills along a bale block, the flake flow remains stand. If the milling head extends beyond the end face of a bale block and there is no further block or the further bale block has a lower height, the milling drums are no longer in engagement and fibers are no longer conveyed.
  • the end of the fiber stream is detected by the sensors mentioned above and communicated to the programmable logic controller. In combination with the incremental path recording, the frontal boundary of a bale block can be recorded as a numerical value.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

Apparatus and method for the determination of the limits (4, 7) of fibre blocks in bale-processing machines (1). The limits (4, 7) are determined by detecting the stream of fibre flakes obtained by the cutting rollers. Various methods for detecting the stream of fibre flakes are provided. The results are transmitted to a stored-program control. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zur Ermittlung der Höhe und der Länge von Textilfaserballengruppen, die zu einer Ballenschau zusammengestellt sind. Es sind Ballen­fräsen bekannt, die Faserballen, die zu einer Ballenschau zusammengestellt sind, mittels gezahnter Öffnungsscheiben abfräsen. Die Öffnungseinrichtung wird mittels eines Fahrgestells an den in einer Linie aufgestellten Ballen bewegt. Die Positionierung der Ballenfräse entlang des Fahrweges und der Höhe geschieht wie auch in anderen In­dustriezweigen üblich mittels Wegmeßeinrichtungen und speicherprogrammierbaren Steuerungen. Die Schwierigkeit besteht in der Erfassung der Höhe und Längenposition der zu Blöcken zusammgestellten Ballenvorlage. Die Ballen weisen keine gleichmäßige Oberfläche auf und haben unter­schiedliche Farbnuancen. Es ist bekannt, daß bei einer Lesefahrt die Fräse manuell entlang der Ballenblöcke bewegt wird oder die Werte per Hand einzugeben. Es ist auch gebräuchlich, die Höhe der Ballenblöcke während einer Lesefahrt mittels eines beweglich gelagerten Tast­rostes abzutasten und Anfang und Ende mit feststellbaren Reitern entlang der Fahrbahn festzulegen. Um den mechanischen Aufwand zu vermindern und den Automatisie­rungsgrad zu erhöhen, sind weitere Vorschläge zur automatischen Erfassung bekannt geworden.The invention relates to a method for determining the height and length of textile fiber bale groups, which are put together for a bale show. Bale milling machines are known which mill fiber bales, which are put together to form a bale display, by means of toothed opening disks. The opening device is moved by means of a chassis on the bales set up in a line. The bale milling machine is positioned along the travel path and the height, as is usual in other branches of industry, by means of position measuring devices and programmable logic controllers. The difficulty lies in the detection of the height and length position of the bale template, which is assembled into blocks. The bales do not have a uniform surface and have different color nuances. It is known that during a reading run the milling machine is moved manually along the bale blocks or the values are entered manually. It is also customary to scan the height of the bale blocks during a reading trip using a movably mounted scanning grate and to determine the beginning and end along the carriageway with lockable tabs. In order to reduce the mechanical effort and increase the degree of automation, further proposals for automatic detection have become known.

In der DE 31 35 272 wird vorgeschlagen, die unterschied­liche Struktur der Ballenschau mit einzelnen Lichtta­stungen zu erfassen und durch eine Mittelwertbildung einen Anhaltswert für die Höhe zu erhalten.DE 31 35 272 proposes to detect the different structure of the bale show with individual light scans and to obtain a reference value for the height by averaging.

In der DE 33 35 793 wird ebenfalls eine Mittelwertbildung durch Lichtschranken beschrieben, die durch ihre Anord­nung das von den Tastrosten her bekannte Fräsen während der Lesefahrt erlauben. Die Abtastung mit Lichtschranken und Mittelwertbildung ist nicht nur sehr aufwendig, sie erlaubt auch nicht die Erfasung der gewünschten Material­kernhöhe. Die Ballen sind an ihrer Oberfläche zum Teil sehr flockig aufgelockert. Diese Auflockerungen werden von Lichtschranken als Oberfläche erfasst. Für das Abfrä­sen ist aber der dichtere Materialkern von Bedeutung. Durch die Lichtabtastung werden so dem Computer falsche, größere Höhen eingegeben. Dies führt zu einer stark ver­minderten Produktion oder zu Fehlmischungen in der An­fangsphase des Fräsprozesses.DE 33 35 793 also describes averaging by means of light barriers which, by virtue of their arrangement, permit milling which is known from the tactile gratings during reading travel. The scanning with light barriers and averaging is not only very complex, it also does not allow the detection of the desired material core height. Some of the bales are loosened up very flaky on their surface. These loosenings are detected as a surface by light barriers. However, the denser material core is important for milling. Through the light scanning, wrong, higher heights are entered into the computer. This leads to a greatly reduced production or to incorrect mixes in the initial phase of the milling process.

Die DE 33 35 792 beschreibt ein Verfahren, bei dem die Anfangs- und Endgrenzen der aufgestellten Ballenreihen unmittelbar durch einen Sensor festgestellt werden und der gemessenen Wegstrecke, wie von der Höhenmessung her bekannt, im Steuerungscomputer zugeordnet werden. Das be­schriebene Verfahren kann nur Anwendung finden, wenn zwi­schen den einzelnen Ballengrenzen Lücken gelassen werden. Eine Berücksichtigung der Ballenstruktur ist nicht mög­lich. Die Lichtschranken neigen zur Verschmutzung und Fehlschaltungen durch kleine Flocken.DE 33 35 792 describes a method in which the start and end limits of the bale rows set up are determined directly by a sensor and are assigned to the measured distance, as is known from the height measurement, in the control computer. The method described can only be used if gaps are left between the individual bale boundaries. It is not possible to take the bale structure into account. The light barriers tend to become dirty and malfunction due to small flakes.

Aufgabe der Erfindung ist die Schaffung eines Verfahrens zur Feststellung der Oberflächengrenzen. Die Erfindung dient sowohl zum Erfassen der Höhe, der Länge und der Struktur der Ballen, beziehungsweise der zusammengestell­ten Ballenblöcke.The object of the invention is to provide a method for determining the surface boundaries. The invention serves both for detecting the height, the length and the structure of the bale, or the assembled bale blocks.

Erfindungsgemäß erfolgt die Erfassung der Ballenblock­begrenzung indirekt durch die Erfassung des abgefrästen Faserflockenstromes. Der Flockenstrom kann durch eine Lichtschranke im Fräskopf oder auf der Verbindungsstrecke Fräskopf - Ablieferung erfasst werden. Der Flockenstrom kann auch indirekt durch Messung der Luftströmung im Fräskopf oder der Verbindungsstrecke erfolgen. Werden Fasern gefräst, ändern sich Luftdruck und Geschwindigkeit im Fräskopf und auf der Verbindungsstrecke. Weitere denkbare Möglichkeiten bestehen in der Messung des Flockenstromes durch kapazitive Sensoren oder durch ein Fühlblech im Luftstrom.According to the invention, the detection of the bale block limitation takes place indirectly by the detection of the milled fiber flock flow. The flock flow can be detected by a light barrier in the milling head or on the milling head - delivery link. The flock flow can also be done indirectly by measuring the air flow in the milling head or the connecting section. If fibers are milled, air pressure and speed change in the milling head and on the connecting section. Another conceivable possibility is to measure the floc flow using capacitive sensors or a sensor plate in the air flow.

Der Ablauf des Meßvorgangs ist folgendermaßen:
Zur Messung der Ballenhöhe befindet sich die Fräseinrich­tung über der zu messenden Stelle. Der Fräskopf hat noch keinen Kontakt mit der Ballenoberfläche, sodaß noch keine Fasern gefördert werden. Wird der Fräskopf gesenkt, gelangen die Zupfwalzen in Eingriff mit der Ballenober­fläche und es beginnt der Flockenstrom. Der Beginn des Flockenstromes wird durch ein oben geschildertes Verfahren festgestellt und der speicherprogrammierbaren Steuerung mitgeteilt. Gleichzeitg mit der Flockenstrom­feststellung wird der Wert des Inkrementalgebers für die Höhe in der speicherprogrammierbaren Steuerung registriert.The measuring process is as follows:
To measure the bale height, the milling device is located above the point to be measured. The milling head is not yet in contact with the surface of the bale, so that no fibers are being conveyed. If the milling head is lowered, the plucking rollers come into engagement with the bale surface and the flake flow begins. The beginning of the flocculation is determined by a method described above and communicated to the programmable logic controller. At the same time as the flocculation, the value of the incremental encoder for the height is registered in the programmable logic controller.

Die Faserstromerfassung dient ebenso zur Erfassung der Längenbegrenzung eines Ballenblockes. Fräst der Fräskopf entlang eines Ballenblockes, bleibt der Flockenstrom be­ stehen. Fährt der Fräskopf über die Stirnseite eines Bal­lenblockes hinaus und es ist kein weiterer Block vorhan­den oder der weitere Ballenblock hat eine geringere Höhe, befinden sich die Fräswalzen nicht mehr im Eingriff und es werden keine Fasern mehr gefördert. Das Enden des Fa­serstroms wird durch die oben erwähnten Sensoren erfasst und der speicherprogrammierbaren Steuerung mitgeteilt. In Kombination mit der inkrementalen Wegaufnahme kann so die stirnseitige Begrenzung eines Ballenblockes als numeri­scher Wert erfasst werden.The fiber flow detection also serves to detect the length limitation of a bale block. If the milling head mills along a bale block, the flake flow remains stand. If the milling head extends beyond the end face of a bale block and there is no further block or the further bale block has a lower height, the milling drums are no longer in engagement and fibers are no longer conveyed. The end of the fiber stream is detected by the sensors mentioned above and communicated to the programmable logic controller. In combination with the incremental path recording, the frontal boundary of a bale block can be recorded as a numerical value.

Figur 1. zeigt ein Fahrgestell (1), an dem ein Ausleger (2) vertikal beweglich angebracht ist. Im Ausleger sind Fräswalzen (F1 und F2) angebracht, die Flocken aus der Ballenoberfläche (4) des Ballens (5) herausschlagen. Die Fasern werden durch einen Absaugkanal (3) abgesaugt. Eine Lichtschranke (6) oder ein Druckschalter (8) stellen fest, ob ein Faserflockenstrom vorhanden ist. Mit (7) ist eine stirnseitige Begrenzung des Faserblockes gekenn­zeichnet.Figure 1. shows a chassis (1) on which a boom (2) is vertically movable. Milling drums (F1 and F2) are attached to the delivery arm, knocking the flakes out of the bale surface (4) of the bale (5). The fibers are sucked off through a suction channel (3). A light barrier (6) or a pressure switch (8) determine whether there is a stream of fiber flocks. An end boundary of the fiber block is identified by (7).

Claims (3)

1. Verfahren und Vorrichtung zum Ermitteln der Begrenzun­gen (4,7) einer Ballenschau bei Ballenfräsen, dadurch ge­kennzeichnet, daß der vom Fräskopf (2) erzeugte Flocken­strom festgestellt wird und diese Feststellung mit den Informationen über den Bewegungsablauf in einer Steuerung kombiniert wird zur Bestimmtung der Ballengrenzen (4,7).1. A method and apparatus for determining the limits (4,7) of a bale inspection in bale milling, characterized in that the flake flow generated by the milling head (2) is determined and this determination is combined with the information about the movement sequence in a controller to determine the Bale boundaries (4.7). 2. Verfahren und Vorrichtung nach Anspruch 1), dadurch gekennzeichnet, daß das Vorhandensein eines Flocken­stromes durch eine Lichtschranke (6) oder einen kapaziti­ven Schalter oder durch ein Tastblech oder durch Messung der Luftgeschwindigkeit oder des Unterdrucks in dem Fräs­kopf oder der Fasertransporteinrichtung festgestellt wird.2. The method and apparatus according to claim 1), characterized in that the presence of a flocculation is determined by a light barrier (6) or a capacitive switch or by a touch plate or by measuring the air speed or the vacuum in the milling head or the fiber transport device. 3. Verfahren und Vorrichtung nach Anspruch 1) oder 2), dadurch gekennzeichnet, daß die Messung der Ballenhöhe beim Senken des Fräskopfes erfolgt.3. The method and device according to claim 1) or 2), characterized in that the bale height is measured when the milling head is lowered.
EP87114849A 1986-10-29 1987-10-12 Method and apparatus for the determination of bale limits in bale openers Withdrawn EP0265755A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3636752 1986-10-29
DE19863636752 DE3636752C2 (en) 1986-10-29 1986-10-29 Procedure for determining the boundaries of bale blocks in bale cutters

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EP0265755A2 true EP0265755A2 (en) 1988-05-04
EP0265755A3 EP0265755A3 (en) 1990-03-28

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EP87114849A Withdrawn EP0265755A3 (en) 1986-10-29 1987-10-12 Method and apparatus for the determination of bale limits in bale openers

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0415156A1 (en) * 1989-08-10 1991-03-06 Maschinenfabrik Rieter Ag Method and apparatus to operate a bale opening machine
US10218103B2 (en) 2016-02-23 2019-02-26 Te Connectivity Germany Gmbh Contact stud, terminal and contact assembly in particular for car technology

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3943322A1 (en) * 1989-12-29 1991-07-04 Rieter Ag Maschf Bale breaker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2832085C3 (en) * 1978-07-21 1981-08-13 Trützschler GmbH & Co KG, 4050 Mönchengladbach Method and device for assembling fiber blends
DE3135272C2 (en) * 1981-09-05 1986-10-09 Trützschler GmbH & Co KG, 4050 Mönchengladbach Method and device for determining the height of textile fiber bales
DE3153246C2 (en) * 1981-09-05 1985-11-28 Trützschler GmbH & Co KG, 4050 Mönchengladbach Method and device for determining the vertical bale limits of fibre bales
US4479285A (en) * 1981-10-09 1984-10-30 Continental Conveyor & Equipment Co., Inc. Cotton module dispersing and feeding system with improved electrical controls
DE3335793C2 (en) * 1983-10-01 1985-08-14 Trützschler GmbH & Co KG, 4050 Mönchengladbach Method and device for operating a bale opener, in particular for determining the height of textile fiber bales
DE3335792C2 (en) * 1983-10-01 1985-11-28 Trützschler GmbH & Co KG, 4050 Mönchengladbach Device for determining the gaps between bales in a row of bales

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0415156A1 (en) * 1989-08-10 1991-03-06 Maschinenfabrik Rieter Ag Method and apparatus to operate a bale opening machine
US5105507A (en) * 1989-08-10 1992-04-21 Maschinenfabrik Rieter Ag Method and apparatus for operating a bale opening machine
US10218103B2 (en) 2016-02-23 2019-02-26 Te Connectivity Germany Gmbh Contact stud, terminal and contact assembly in particular for car technology

Also Published As

Publication number Publication date
DE3636752C2 (en) 1997-03-20
EP0265755A3 (en) 1990-03-28
DE3636752A1 (en) 1988-05-05

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