EP0256276A1 - Dust removing device for flat bed knitting machines - Google Patents

Dust removing device for flat bed knitting machines Download PDF

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Publication number
EP0256276A1
EP0256276A1 EP87109583A EP87109583A EP0256276A1 EP 0256276 A1 EP0256276 A1 EP 0256276A1 EP 87109583 A EP87109583 A EP 87109583A EP 87109583 A EP87109583 A EP 87109583A EP 0256276 A1 EP0256276 A1 EP 0256276A1
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EP
European Patent Office
Prior art keywords
suction
carriage
fans
dedusting device
needle
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Granted
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EP87109583A
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German (de)
French (fr)
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EP0256276B1 (en
Inventor
Herbert Seitz
Eugen Frosch
Ernst Ing. Grad. Goller
Jochen Dipl.-Ing. Dieringer (Fh)
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H Stoll GmbH and Co KG
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H Stoll GmbH and Co KG
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    • 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
    • D04B35/32—Devices for removing lint or fluff

Definitions

  • the invention relates to a dedusting device for flat knitting machines, with suction nozzles which are arranged on the carriage of the flat knitting machine and are aligned with the needle beds and which are connected to a suction motor arranged on the carriage and driven by an electric motor.
  • the invention has for its object to provide a dedusting device of the type mentioned so that it gives a high efficiency with a low power to weight ratio and can be operated as maintenance-free and energy-saving as possible.
  • the use of two separately controllable and switchable suction fans results in the advantage that, instead of a large-volume and therefore bulky dedusting device, two smaller suction fans, which can be accommodated more easily on the slide, can be used.
  • the dedusting can be limited to the front needle bed without blocking devices for a part of the suction channels, and the energy expenditure for the dedusting of the front and the rear needle bed can be rationally adapted to the different degree of use through different actuation intervals.
  • the suction nozzles advantageously can have lateral opening edge recesses on both sides of their slide direction, which give the needle heads that have been run over and exposed to the suction effect free space for immersing and for executing the needle tongue impact. Due to the reduced energy expenditure, smaller and less powerful and therefore also lighter suction fans can be used, the energy saving being able to be reduced even further by the formation of the suction fans and the suction channels leading from the suction nozzles to the suction fans.
  • the suction channels can expediently consist of hoses with a circular cross-section, which have a highly smooth and advantageously also an electrically antistatic inner surface, which ensures low-resistance fluff and dust transport into the dust collection container of the suction fan.
  • the suction fans can be designed such that the suction channels leading from the suction nozzles to the associated suction fan tangentially open into the upper end face region of a vertically oriented, circular-cylindrical dust collecting container, the upper end face of which has a central sieve opening, above which the suction fan is arranged.
  • the suctioned dust is agglomerated by cyclonic swirling and falls faster to the ground due to this compaction.
  • the expediently circular-cylindrical dust collecting container can be designed with a relatively small volume without shortening the emptying intervals.
  • a dedusting device designed in accordance with the invention can thus be arranged in a relatively small and compact design with short suction channels on the side and above the slide driving device on the slide, the two suction fans advantageously being arranged one behind the other and with opposite rotors in the running direction of the slide. Due to the counter-rotating rotors, the torque loads of the carriage are largely canceled out by one another when both suction fans are operated simultaneously, as a result of which the fastening construction for the dedusting device can be designed more easily.
  • FIG. 1 shows, from a flat knitting machine, the machine frame 10, the two needle beds 11 and 12, the machine slide 13 with its two lock plates 15 and 16 connected by brackets 14, three thread guide rails 17 spanned by the brackets 14, and a bobbin table 18 , a drive motor 19 for driving the carriage 14 by means of belt drives 20 and 21 via intermediate shafts 22 and 23 and parts of the carriage driving device 24.
  • a support beam 25 extends from the brackets 14 of the carriage in the area between the reel table 18 and the carriage driving device 24 to the rear the flat knitting machine.
  • the power supply to the carriage 13 takes place via this support beam 25 from a cable guide device 26, and suction fans 27 of a dedusting device of the slide 13 are also fastened to this support beam 25, which have front and rear suction nozzles 29 and 30 reaching into the knitting area 28, which have Round hoses 31 and 32 with a smooth inner surface are connected to the suction fan part of the dedusting device.
  • the dedusting device attached to the carriage 13 of the flat knitting machine has two arranged one behind the other in the direction of carriage movement Suction fan 27 and 27.1, which are of the same design.
  • Its electric drive motor 33 is arranged vertically with its axis and drives a fan wheel arranged in a worm-like housing 34.
  • the two suction fans 27 and 27.1 are arranged so that their rotors are common with the impellers, not shown.
  • the impellers each suck in the air through a sieve opening 35 in the axial direction and convey the sucked-in air outwards via a tangential channel 36 or 36.1 to the rear of the flat knitting machine.
  • a removable, closed dust collecting container 37 is arranged below each of the suction blowers 27 and 27.1, the upper opening of which contains the sieve opening 35 as the suction opening of the suction blower 27.
  • the suction channel 31 or 32 which comes from the suction nozzles 29 or 30 and consists of a round hose which is made highly smooth on the inside by an antistatic coating, opens out.
  • the suction channels 31 and 32 can become multiple suction nozzles in a manner not shown 29 and 30 branch out.
  • the suction nozzles 29 and 30 are brought as far as possible to the stitch formation area above the comb gap formed by the two needle beds 11 and 12. They are provided at the end of the nozzle with lateral opening edge recesses 38, which give the needle heads 39, run over by the suction nozzles 29 and 30 during the carriage movement, with their needle tongues 40, free space for receiving the thread 41 to be knitted and for the tongue flap.
  • FIG. 2 shows the control panel 42 of a control device of the dedusting device, with which an intermittent operation of the two suction fans 27 and 27.1 can be set independently of one another via adjustable time stages.
  • the suction and interval times can be selected using buttons 43 in accordance with the processed yarns and the type of knitted fabric formed and also made visible on a display device 44.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Abstract

Die auf dem Schlitten (13) der Flachstrickmaschine ange­ordnete Entstaubungsvorrichtung weist für das vordere und das hintere Nadelbett (11, 12) gesonderte, unabhängig voneinander betätigbare Sauggebläse (27) auf, die durch das Absenken der Absaugdüsen (29, 30), durch die Verwen­dung glattwandiger Absaugkanäle (31, 32) und durch die Koppelung der Staubsammelbehälter (37) mit den Absaug­kanälen und mit den Sauggebläsen (27) bei geringem Ener­gieaufwand eine gute Reinigungswirkung und einen war­tungsfreien Betrieb gewährleistet. (Fig. 1)

Figure imgaf001
The dedusting device arranged on the carriage (13) of the flat knitting machine has separate, independently operable suction fans (27) for the front and rear needle beds (11, 12), which are used by lowering the suction nozzles (29, 30) smooth-walled suction ducts (31, 32) and by coupling the dust collection container (37) with the suction ducts and with the suction fans (27), a good cleaning effect and maintenance-free operation are guaranteed with low energy consumption. (Fig. 1)
Figure imgaf001

Description

Die Erfindung betrifft eine Entstaubungsvorrichtung für Flachstrickmaschinen, mit am Schlitten der Flachstrick­maschine einstellbar angeordneten, auf die Nadelbetten ausgerichteten Absaugdüsen, die mit einem auf dem Schlit­ten angeordneten, elektromotorisch angetriebenen Saug­gebläse verbunden sind.The invention relates to a dedusting device for flat knitting machines, with suction nozzles which are arranged on the carriage of the flat knitting machine and are aligned with the needle beds and which are connected to a suction motor arranged on the carriage and driven by an electric motor.

Eine Entstaubungsvorrichtung der eingangs genannten Art ist in der DE-OS 33 05 795 vorgeschlagen worden.A dedusting device of the type mentioned above has been proposed in DE-OS 33 05 795.

Am Schlitten von Flachstrickmaschinen angeordnete Entstau­bungsvorrichtungen bedeuten zwangsläufig eine Erhöhung des Schlittengewichtes. Um diese Gewichtserhöhung in Grenzen zu halten, muß man bestrebt sein, die Entstaubungsvorrich­tung so kompakt und massearm wie möglich auszubilden. An­derseits muß aber auch eine ausreichende Entstaubungswir­kung gewährleistet bleiben. Ausgehend von dieser Problem­ stellung liegt der Erfindung die Aufgabe zugrunde, eine Entstaubungsvorrichtung der eingangs genannten Art so aus­zubilden, daß sie einen hohen Wirkungsgrad bei einem günstigen Leistungsgewicht ergibt und so wartungsfrei und energiesparend wie möglich betrieben werden kann.Dedusting devices arranged on the carriage of flat knitting machines inevitably mean an increase in the carriage weight. In order to keep this increase in weight within limits, efforts must be made to design the dedusting device as compact and low-mass as possible. On the other hand, a sufficient dedusting effect must also be guaranteed. Based on this problem Position, the invention has for its object to provide a dedusting device of the type mentioned so that it gives a high efficiency with a low power to weight ratio and can be operated as maintenance-free and energy-saving as possible.

Die gestellte Aufgabe wird bei der Entstaubungsvorrichtung der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß für das vordere und das hintere Nadelbett gesonderte und einzeln schalt- und steuerbare Sauggebläse vorgesehen und mit ihnen verbundene Absaugdüsen bis in den Maschen­bildungsbereich der Nadelköpfe abgesenkt sind.The stated object is achieved according to the invention in the dedusting device of the type mentioned at the outset in that separate and individually switchable and controllable suction fans are provided for the front and rear needle beds and suction nozzles connected to them are lowered down into the stitch formation region of the needle heads.

Die Verwendung von zwei gesondert steuer- und schaltbaren Sauggebläsen ergibt den Vorteil, daß an Stelle einer groß­volumigen und dadurch sperrigen Entstaubungsvorrichtung zwei kleinere und am Schlitten leichter unterbringbare Sauggebläse verwendet werden können. Wenn auf einer zweibettigen Flachstrickmaschine nur oder überwiegend auf einem Nadelbett gearbeitet wird, läßt sich bei der erfin­dungsgemäß ausgebildeten Entstaubungsvorrichtung die Ent­staubung auf das vordere Nadelbett beschränken, ohne daß Sperrvorrichtungen für einen Teil der Absaugkanäle erfor­derlich sind, und der Energieaufwand für die Entstaubung des vorderen und des hinteren Nadelbettes läßt sich an den unterschiedlichen Benutzungsgrad durch unterschiedliche Betätigungsintervalle rationell anpassen.The use of two separately controllable and switchable suction fans results in the advantage that, instead of a large-volume and therefore bulky dedusting device, two smaller suction fans, which can be accommodated more easily on the slide, can be used. When working on a two-bed flat knitting machine only or predominantly on a needle bed, with the dedusting device designed according to the invention, the dedusting can be limited to the front needle bed without blocking devices for a part of the suction channels, and the energy expenditure for the dedusting of the front and the rear needle bed can be rationally adapted to the different degree of use through different actuation intervals.

Der zur Flaumabsaugung erforderliche Energieaufwand wird bei der erfindungsgemäß ausgebildeten Entstaubungsvorrich­tung durch die Absenkung der Absaugdüsen bis in den Maschenbildungsbereich der Nadelköpfe hinein sehr stark vermindert, wobei vorteilhafterweise die Absaugdüsen auf ihren beiden Schlittenlaufrichtungsseiten seitliche Öff­nungsrandausnehmungen aufweisen können, die den überfahre­nen und der Absaugwirkung ausgesetzten Nadelköpfen Frei­raum zum Eintauchen und zur Ausführung des Nadelzungen­schlages verschaffen. Durch den verminderten Energieauf­wand lassen sich kleinere und leistungsärmere und damit auch leichtere Sauggebläse einsetzen, wobei die Energie­einsparung durch die Ausbildung der Sauggebläse und der von den Absaugdüsen zu den Sauggebläsen führenden Absaug­kanäle noch weiter vermindert werden kann. Hierzu können zweckmäßig die Absaugkanäle aus Schläuchen mit kreisrundem Querschnitt bestehen, die eine hochglatte und vorteilhaf­terweise auch eine elektrisch antistatische Innenfläche aufweisen, wodurch ein widerstandsarmer Flaum- und Staub­transport in die Staubsammelbehälter der Sauggebläse ge­währleistet wird.The amount of energy required for fluff suction is very greatly reduced in the dedusting device designed according to the invention by lowering the suction nozzles down to the stitch formation area of the needle heads, the suction nozzles advantageously can have lateral opening edge recesses on both sides of their slide direction, which give the needle heads that have been run over and exposed to the suction effect free space for immersing and for executing the needle tongue impact. Due to the reduced energy expenditure, smaller and less powerful and therefore also lighter suction fans can be used, the energy saving being able to be reduced even further by the formation of the suction fans and the suction channels leading from the suction nozzles to the suction fans. For this purpose, the suction channels can expediently consist of hoses with a circular cross-section, which have a highly smooth and advantageously also an electrically antistatic inner surface, which ensures low-resistance fluff and dust transport into the dust collection container of the suction fan.

Vorteilhafterweise können die Sauggebläse so ausgebildet sein, daß die von den Absaugdüsen zu dem zugehörigen Sauggebläse führenden Absaugkanäle tangential in den obe­ren Stirnseitenbereich eines vertikal ausgerichteten, kreiszylindrischen Staubsammelbehälters münden, dessen obere Stirnseite eine zentrale Sieböffnung aufweist, über welcher das Sauggebläse angeordnet ist. Bei dieser Anord­nung in Verbindung mit einem Sauggebläse-Lüfterrad für eine axiale Luftansaugung und eine tangentiale Luftabgabe ergibt sich ein guter Staubaustrag in den Staubsammelbe­hälter und entfällt die Gefahr einer Verstopfung der zum Lüfterrad des Sauggebläses führenden Sieböffnung, was für die Aufrechterhaltung eines hohen Unterdruckwertes an den Saugdüsen wichtig ist und den Wartungsaufwand für die Entstaubungsvorrichtung klein hält. Durch zyklonartige Verwirbelung wird der angesaugte Staub zusammengeballt und fällt durch diese Verdichtung rascher zu Boden. Der zweckmäßig kreiszylindrische Staubsammelbehälter kann mit relativ kleinem Volumen ausgbildet werden, ohne die Ent­leerungsintervalle zu verkürzen. Eine erfindungsgemäß aus­gebildete Entstaubungsvorrichtung kann so in relativ klei­ner und kompakter Bauweise bei kurzen Absaugkanälen seit­lich und oberhalb der Schlittenmitnahmeeinrichtung am Schlitten angeordnet werden, wobei die beiden Sauggebläse zweckmäß in Laufrichtung des Schlittens hintereinander und mit gegenläufigen Rotoren angeordnet sind. Durch die ge­genläufigen Rotoren werden die Drehmomentbelastungen des Schlittens beim gleichzeitigen Betrieb beider Sauggebläse weitgehend gegenseitig aufgehoben, wodurch sich die Be­festigungskonstruktion für die Entstaubungsvorrichtung leichter ausbilden läßt.Advantageously, the suction fans can be designed such that the suction channels leading from the suction nozzles to the associated suction fan tangentially open into the upper end face region of a vertically oriented, circular-cylindrical dust collecting container, the upper end face of which has a central sieve opening, above which the suction fan is arranged. With this arrangement in connection with a suction fan wheel for an axial air intake and a tangential air discharge, there is good dust discharge into the dust collection container and there is no danger of the sieve opening leading to the fan wheel of the suction fan becoming blocked, which ensures the maintenance of a high vacuum value at the suction nozzles is important and keeps the maintenance work for the dedusting device small. The suctioned dust is agglomerated by cyclonic swirling and falls faster to the ground due to this compaction. The expediently circular-cylindrical dust collecting container can be designed with a relatively small volume without shortening the emptying intervals. A dedusting device designed in accordance with the invention can thus be arranged in a relatively small and compact design with short suction channels on the side and above the slide driving device on the slide, the two suction fans advantageously being arranged one behind the other and with opposite rotors in the running direction of the slide. Due to the counter-rotating rotors, the torque loads of the carriage are largely canceled out by one another when both suction fans are operated simultaneously, as a result of which the fastening construction for the dedusting device can be designed more easily.

Nachfolgend wird ein Ausführungsbeispiel einer erfindungs­gemäß ausgebildeten Enstaubungsvorrichtung anhand der beiliegenden Zeichnung näher erläutert.An exemplary embodiment of a dedusting device designed according to the invention is explained in more detail below with reference to the accompanying drawing.

Im einzelnen zeigen:

  • Fig. 1 eine stark schematisierte Stirnseitenansicht einer Flachstrickmaschine mit zwei Nadelbet­ten;
  • Fig. 2 eine Einzeldarstellung des Sauggebläseteils der Entstaubungsvorrichtung der Flachstrick­maschine in einer Seitenansicht in Richtung des Pfeiles II in Fig. 1;
  • Fig. 3 eine Draufsicht auf die Sauggebläseanordnung in Richtung des Pfeiles III in Fig. 2;
  • Fig. 4 einen Teilquerschnitt durch die beiden Nadel­betten im Strickbereich mit den dort angeord­neten Absaugdüsen der Entstaubungsvorrich­tung.
In detail show:
  • Figure 1 is a highly schematic front view of a flat knitting machine with two needle beds.
  • FIG. 2 shows an individual illustration of the suction fan part of the dedusting device of the flat knitting machine in a side view in the direction of arrow II in FIG. 1;
  • Figure 3 is a plan view of the suction fan assembly in the direction of arrow III in Fig. 2.
  • Fig. 4 is a partial cross section through the two needle beds in the knitting area with the suction nozzles of the dedusting device arranged there.

Die schematische Stirnseitenansicht der Fig. 1 zeigt von einer Flachstrickmaschine das Maschinengestell 10, die beiden Nadelbetten 11 und 12, den Maschinenschlitten 13 mit seinen beiden durch Bügel 14 miteinander verbundenen Schloßplatten 15 und 16, drei von den Bügeln 14 überspann­te Fadenführerschienen 17, einen Spulentisch 18, einen Antriebsmotor 19 zum Antrieb des Schlittens 14 mittels Riementrieben 20 und 21 über Zwischenwellen 22 und 23 sowie Teile der Schlittenmitnahmeeinrichtung 24. Von den Bügeln 14 des Schlittens erstreckt sich in dem zwischen dem Spulentisch 18 und der Schlittenmitnehmereinrichtung 24 befindlichen Bereich ein Tragbalken 25 zur Rückseite der Flachstrickmaschine hin. Über diesen Tragbalken 25 erfolgt von einer Kabelführungseinrichtung 26 aus die Stromzufuhr zum Schlitten 13, und an diesem Tragbalken 25 sind auch Sauggebläse 27 einer Entstaubungsvorrichtung des Schlittens 13 befestigt, welche bis in den Strickbereich 28 reichende vordere und hintere Saugdüsen 29 und 30 auf­weisen, die über Rundschläuche 31 und 32 mit glatter Innenfläche mit dem Sauggebläseteil der Entstaubungsvor­richtung verbunden sind.1 shows, from a flat knitting machine, the machine frame 10, the two needle beds 11 and 12, the machine slide 13 with its two lock plates 15 and 16 connected by brackets 14, three thread guide rails 17 spanned by the brackets 14, and a bobbin table 18 , a drive motor 19 for driving the carriage 14 by means of belt drives 20 and 21 via intermediate shafts 22 and 23 and parts of the carriage driving device 24. A support beam 25 extends from the brackets 14 of the carriage in the area between the reel table 18 and the carriage driving device 24 to the rear the flat knitting machine. The power supply to the carriage 13 takes place via this support beam 25 from a cable guide device 26, and suction fans 27 of a dedusting device of the slide 13 are also fastened to this support beam 25, which have front and rear suction nozzles 29 and 30 reaching into the knitting area 28, which have Round hoses 31 and 32 with a smooth inner surface are connected to the suction fan part of the dedusting device.

Gemäß Fig. 2 und 3 weist die am Schlitten 13 der Flach­strickmaschine befestigte Entstaubungsvorrichtung zwei in der Schlittenbewegungsrichtung hintereinander angeordnete Sauggebläse 27 und 27.1 auf, die gleich ausgebildet sind. Ihr elektrischer Antriebsmotor 33 ist mit seiner Achse vertikal angeordnet und treibt ein in einem schneckenarti­gen Gehäuse 34 angeordnetes Lüfterrad. Die beiden Saugge­bläse 27 und 27.1 sind so angeordnet, daß ihre Rotoren mit den nicht dargestellten Flügelrädern gegeläufig sind. Die Flügelräder saugen die Luft jeweils durch eine Sieböffnung 35 in axialer Richtung an und befördern die angesaugte Luft über einen Tangentialkanal 36 bzw. 36.1 zur Rückseite der Flachstrickmaschine hin nach außen. Unterhalb der Sauggebläse 27 und 27.1 ist jeweils ein abnehmbarer, ge­schlossener Staubsammelbehälter 37 angeordnet, in dessen oberer Wandung sich die Sieböffnung 35 als Ansaugöffnung des Sauggebläses 27 befindet. Außerdem mündet in seinen oberen Bereich in tangentialer Richtung der von den Ab­saugdüsen 29 bzw. 30 kommende, aus einem innen durch eine antistatische Beschichtung hochglatt ausgebildeten Rund­schlauch bestehender Absaugkanal 31 bzw. 32. Die Absaug­kanäle 31 und 32 können sich in nicht dargestellter Weise zu mehren Absaugdüsen 29 und 30 hin verzweigen.2 and 3, the dedusting device attached to the carriage 13 of the flat knitting machine has two arranged one behind the other in the direction of carriage movement Suction fan 27 and 27.1, which are of the same design. Its electric drive motor 33 is arranged vertically with its axis and drives a fan wheel arranged in a worm-like housing 34. The two suction fans 27 and 27.1 are arranged so that their rotors are common with the impellers, not shown. The impellers each suck in the air through a sieve opening 35 in the axial direction and convey the sucked-in air outwards via a tangential channel 36 or 36.1 to the rear of the flat knitting machine. A removable, closed dust collecting container 37 is arranged below each of the suction blowers 27 and 27.1, the upper opening of which contains the sieve opening 35 as the suction opening of the suction blower 27. In addition, in its upper region, in the tangential direction, the suction channel 31 or 32, which comes from the suction nozzles 29 or 30 and consists of a round hose which is made highly smooth on the inside by an antistatic coating, opens out. The suction channels 31 and 32 can become multiple suction nozzles in a manner not shown 29 and 30 branch out.

Wie Fig. 4 zeigt, sind die Absaugdüsen 29 und 30 so weit wie möglich an den Maschenbildungsbereich oberhalb des von den beiden Nadelbetten 11 und 12 gebildeten Kammspaltes herangeführt. Sie sind am Düsenende mit seitlichen Öff­nungsrandausnehmungen 38 versehen, die den von den Absaug­düsen 29 und 30 bei der Schlittenbewegung überfahrenen Nadelköpfen 39 mit ihren Nadelzungen 40 Freiraum zum Auf­nehmen des zu verstrickenden Fadens 41 und für den Zungen­schlag geben.As shown in FIG. 4, the suction nozzles 29 and 30 are brought as far as possible to the stitch formation area above the comb gap formed by the two needle beds 11 and 12. They are provided at the end of the nozzle with lateral opening edge recesses 38, which give the needle heads 39, run over by the suction nozzles 29 and 30 during the carriage movement, with their needle tongues 40, free space for receiving the thread 41 to be knitted and for the tongue flap.

In Fig. 2 ist die Bedienungsplatte 42 einer Steuereinrich­tung der Entstaubungsvorrichtung dargestellt, mit welcher ein intermittierender Betrieb der beiden Sauggebläse 27 und 27.1 unabhängig voneinander über einstellbare Zeitstu­fen eingestellt werden kann. Die Saug- und Intervallzeiten können über Tasten 43 in Anpassung an die verarbeiteten Garne und die Art des gebildeten Gestrickes gewählt und an einer Anzeigevorrichtung 44 auch sichtbar gemacht werden.2 shows the control panel 42 of a control device of the dedusting device, with which an intermittent operation of the two suction fans 27 and 27.1 can be set independently of one another via adjustable time stages. The suction and interval times can be selected using buttons 43 in accordance with the processed yarns and the type of knitted fabric formed and also made visible on a display device 44.

Claims (9)

1. Entstaubungsvorrichtung für Flachstrickmaschinen, mit am Schlitten der Flachstrickmaschine einstellbar ange­ordneten, auf die Nadelbetten ausgerichteten Absaug­düsen, die mit einem auf dem Schlitten angeordneten elektromotorisch angetriebenen Sauggebläse verbunden sind, dadurch gekennzeichnet, daß für das vordere und für das hintere Nadelbett (11, 12) gesonderte und ein­zeln schalt- und steuerbare Sauggebläse (27, 27.1) vor­gesehen und mit ihnen verbundene Absaugdüsen (29, 30) bis in den Maschenbildungsbereich (28) der Nadelköpfe (39) abgesenkt sind.1. Dust removal device for flat knitting machines, with suction nozzles that are arranged on the slide of the flat knitting machine and are aligned with the needle beds and that are connected to an suction motor arranged on the slide and driven by an electric motor, characterized in that for the front and for the rear needle bed (11, 12) Separate and individually switchable and controllable suction fans (27, 27.1) are provided and suction nozzles (29, 30) connected to them are lowered into the stitch formation area (28) of the needle heads (39). 2. Entstaubungsvorrichtung nach Anspruch 1, dadurch ge­kennzeichnet, daß die Absaugdüsen (29, 30) auf ihren beiden Schlittenlaufrichtungsseiten seitliche Öffnungs­randausnehmungen (38) aufweisen, die den überfahrenen Nadelköpfen (39) Freiraum zum Eintauchen und zur Aus­führung des Nadelzungenschlages schaffen.2. dedusting device according to claim 1, characterized in that the suction nozzles (29, 30) on their two carriage direction sides have lateral opening edge recesses (38) which provide the needle heads (39) run over for immersion and for executing the needle-tongue blow. 3. Entstaubungsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die von den Absaugdüsen (29, 30) zu dem zugehörigen Sauggebläse (27, 27.1) führenden Ab­saugkanäle (31, 32) tangential in den oberen Bereich eines vertikal ausgerichteten kreiszylindrischen Staub­sammelbehälters (37) münden, dessen obere Stirnseite eine zentrale Sieböffnung (35) aufweist, über welcher das Sauggebläse (27, 27.1) angeordnet ist.3. dedusting device according to claim 1 or 2, characterized in that from the suction nozzles (29, 30) to the associated suction fan (27, 27.1) leading suction channels (31, 32) tangentially in the upper region of a vertically aligned circular-cylindrical dust collecting container (37), the upper end face of which has a central sieve opening (35), above which the suction fan (27, 27.1) is arranged. 4. Entstaubungsvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die beiden Sauggebläse (27, 27.1) in Laufrichtung des Schlittens (13) hinter­einander angeordnet sind und ihre Rotoren gegenläufig sind.4. Dust removal device according to one of claims 1 to 3, characterized in that the two suction fans (27, 27.1) are arranged one behind the other in the running direction of the carriage (13) and their rotors are in opposite directions. 5. Entstaubungsvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die von den Absaugdüsen (29, 30) zu den Staubsammelbehältern (37) der Absaug­gebläse (27, 27.1) führenden Absaugkanäle (31, 32) aus Schläuchen mit kreisrundem Querschnitt bestehen, die eine hochglatte Innenfläche aufweisen.5. dedusting device according to one of claims 1 to 4, characterized in that of the suction nozzles (29, 30) to the dust collecting containers (37) of the suction fan (27, 27.1) leading suction channels (31, 32) consist of hoses with a circular cross-section that have a highly smooth inner surface. 6. Entstaubungsvorrichtung nach Anspruch 5, dadurch ge­kennzeichnet, daß die hochglatte Innenfläche durch eine elektrisch antistatisch wirkende Beschichtung ge­bildet ist.6. dedusting device according to claim 5, characterized in that the highly smooth inner surface is formed by an electrically antistatic coating. 7. Entstaubungsvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die beiden Sauggebläse (27, 27.1) mit einer Steuereinrichtung (42) gekoppelt sind, die einstellbare Zeitstufen für eine automati­sche und voneinander unabhängige Intervallschaltung der Sauggebläse aufweist.7. Dust removal device according to one of claims 1 to 6, characterized in that the two suction fans (27, 27.1) are coupled to a control device (42) which has adjustable time stages for an automatic and independent interval switching of the suction fans. 8. Enstaubungsvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Rotor der Saugge­bläse (27, 27.1) jeweils als Lüfterrad für eine axiale Luftansaugung und eine tangentiale Luftabgabe ausgebil­det ist.8. dedusting device according to one of claims 1 to 7, characterized in that the rotor of the suction fan (27, 27.1) is designed in each case as a fan wheel for an axial air intake and a tangential air discharge. 9. Entstaubungsvorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Sauggebläse (27, 27.1) am Schlitten (13) seitlich und oberhalb seiner Koppelstellen mit der Schlittenmitnahmeeinrichtung (24) angeordnet sind.9. Dust removal device according to one of claims 1 to 8, characterized in that the suction fans (27, 27.1) on the carriage (13) are arranged laterally and above its coupling points with the carriage driving device (24).
EP87109583A 1986-08-07 1987-07-03 Dust removing device for flat bed knitting machines Expired - Lifetime EP0256276B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3626759A DE3626759C2 (en) 1986-08-07 1986-08-07 Dedusting device for flat knitting machines
DE3626759 1986-08-07

Publications (2)

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EP0256276A1 true EP0256276A1 (en) 1988-02-24
EP0256276B1 EP0256276B1 (en) 1991-01-09

Family

ID=6306879

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Application Number Title Priority Date Filing Date
EP87109583A Expired - Lifetime EP0256276B1 (en) 1986-08-07 1987-07-03 Dust removing device for flat bed knitting machines

Country Status (5)

Country Link
US (1) US4757698A (en)
EP (1) EP0256276B1 (en)
JP (1) JPS6342948A (en)
DE (1) DE3626759C2 (en)
ES (1) ES2020970B3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933458A2 (en) * 1998-02-03 1999-08-04 Shima Seiki Manufacturing, Ltd. A needle bed cleaner for a flat knitting machine
CN104246041A (en) * 2012-04-26 2014-12-24 马尔切洛·加廖托 Machine for cleaning needle holder plates for knitting machines

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3339332B2 (en) * 1996-11-06 2002-10-28 三菱電機株式会社 Accumulator, refrigeration cycle device
CN102704185B (en) * 2012-06-08 2013-11-20 江苏金龙科技股份有限公司 Automatic dust collection device of computerized flat knitting machine
CN108342829A (en) * 2018-04-12 2018-07-31 广东溢达纺织有限公司 Straight-bar machines cleaning device, knitting mechanism and knitting mechanism clean method
CN110644134B (en) * 2019-10-25 2021-03-23 玉环市粢醍化妆品有限公司 Knitting equipment with clout is retrieved

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DE1635971A1 (en) * 1967-08-24 1971-06-16 Univeg Gmbh & Co Kg Knitting and warp knitting machine
DE2838178B1 (en) * 1978-09-01 1979-09-27 Sipra Patent Beteiligung Device for pneumatic dust removal from the loop forming area of a circular knitting machine
GB2018304A (en) * 1978-04-07 1979-10-17 Memminger Gmbh Air-cleaning system for textile machines
DE3130584A1 (en) * 1981-08-01 1983-02-17 Seitz, Herbert, 8500 Nürnberg Apparatus for cleaning and dustproofing flat-bed knitting machines with independently movable needles in the region of the knitting process
DE3305795A1 (en) * 1983-02-19 1984-08-23 Seitz, Herbert, 8500 Nürnberg Device for cleaning and removing dust from flat knitting machines in the region of the knitting operation

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JPS4986666A (en) * 1972-12-25 1974-08-20
DE3506142A1 (en) * 1985-02-22 1986-10-30 Seitz, Herbert, 8500 Nürnberg DEDUSTING DEVICE FOR FLAT KNITTING MACHINES

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Publication number Priority date Publication date Assignee Title
DE1635971A1 (en) * 1967-08-24 1971-06-16 Univeg Gmbh & Co Kg Knitting and warp knitting machine
GB2018304A (en) * 1978-04-07 1979-10-17 Memminger Gmbh Air-cleaning system for textile machines
DE2838178B1 (en) * 1978-09-01 1979-09-27 Sipra Patent Beteiligung Device for pneumatic dust removal from the loop forming area of a circular knitting machine
DE3130584A1 (en) * 1981-08-01 1983-02-17 Seitz, Herbert, 8500 Nürnberg Apparatus for cleaning and dustproofing flat-bed knitting machines with independently movable needles in the region of the knitting process
DE3305795A1 (en) * 1983-02-19 1984-08-23 Seitz, Herbert, 8500 Nürnberg Device for cleaning and removing dust from flat knitting machines in the region of the knitting operation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933458A2 (en) * 1998-02-03 1999-08-04 Shima Seiki Manufacturing, Ltd. A needle bed cleaner for a flat knitting machine
EP0933458A3 (en) * 1998-02-03 2000-07-05 Shima Seiki Manufacturing, Ltd. A needle bed cleaner for a flat knitting machine
CN104246041A (en) * 2012-04-26 2014-12-24 马尔切洛·加廖托 Machine for cleaning needle holder plates for knitting machines

Also Published As

Publication number Publication date
JPS6342948A (en) 1988-02-24
DE3626759A1 (en) 1988-02-11
DE3626759C2 (en) 1994-09-15
US4757698A (en) 1988-07-19
EP0256276B1 (en) 1991-01-09
ES2020970B3 (en) 1991-10-16

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