EP0418929B1 - Dispositif d'aspiration - Google Patents

Dispositif d'aspiration Download PDF

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Publication number
EP0418929B1
EP0418929B1 EP90118219A EP90118219A EP0418929B1 EP 0418929 B1 EP0418929 B1 EP 0418929B1 EP 90118219 A EP90118219 A EP 90118219A EP 90118219 A EP90118219 A EP 90118219A EP 0418929 B1 EP0418929 B1 EP 0418929B1
Authority
EP
European Patent Office
Prior art keywords
suction
unit according
filter
filter means
cleaning
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
EP90118219A
Other languages
German (de)
English (en)
Other versions
EP0418929A2 (fr
EP0418929A3 (en
Inventor
Manfred Sohler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Publication of EP0418929A2 publication Critical patent/EP0418929A2/fr
Publication of EP0418929A3 publication Critical patent/EP0418929A3/de
Application granted granted Critical
Publication of EP0418929B1 publication Critical patent/EP0418929B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H11/00—Arrangements for confining or removing dust, fly or the like
    • D01H11/005—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices

Definitions

  • the invention relates to a suction unit equipped with two fans, according to the preamble of claim 1.
  • suction units equipped with two blowers have become known, which have various advantages with regard to the flexibility of the available suction or blowing power.
  • suction units equipped with two blowers have become known, which have various advantages with regard to the flexibility of the available suction or blowing power.
  • This solution offers the advantage that it is possible to work with continuous cleaning power if the appropriate blower is alternately switched on and the other blower is either switched off or is operated in the cleaning operation immediately after the associated suction cycle has ended, so that the fiber fly that occurs had accumulated in the associated filter device, can be removed at comparatively short intervals.
  • a filter device that is always well cleaned has the advantage that a high suction power is available in relation to the energy input.
  • blower with a high differential pressure and low delivery volume and a further blower with a low differential pressure and large delivery volume.
  • Such a generic suction unit offers the possibility of providing an increased cleaning effect in a targeted manner at places of greater soiling and, moreover, of sucking up large quantities of fiber fly with the low-pressure blower.
  • suction unit according to the preamble of claim 1, which is suitable for cleaning very differently contaminated areas of a textile machine, can work in a fast cleaning cycle and its susceptibility to malfunction is reduced.
  • a particularly favorable effect results from the combination of the drawing roller suction in the high pressure area with the suction of the other fiber fly in the low pressure area.
  • the relatively fat-containing fiber fly from the stretching roller area is deposited practically alternately in layers with the fat-free or low-fat fiber fly from the low-pressure circuit in the collecting container. It has been found to be surprisingly particularly favorable that the fat content is automatically equalized via the fat-free and fat-containing layers in the collecting container, so that the fiber fly is practically automatically adjusted to the desired average fat content. Very slightly greasy fibers tend less to compress so much that they stick to the walls and bottom of the collecting container.
  • the collected fiber fly can also be reused.
  • a switching device such as a flap which is in the (normal) suction mode for each circuit in the closed state, but which opens automatically in the filter cleaning mode.
  • the decoupling of the cleaning is hereby provided, wherein it can easily be avoided by means of a mechanical switching element, but for example also by means of corresponding microswitches, that both circuits work simultaneously in the filter cleaning mode.
  • This modification offers particular advantages if both reuse of very fatty fiber fly and non-fatty fiber fly is possible, with corresponding measures for separate reuse or regeneration being required.
  • a suction unit 10 according to the invention has a high-pressure circuit 14 and a low-pressure circuit 12.
  • Each of the circuits is equipped with a blower, which is not shown in FIG. 1, the blower for the high pressure circuit 14 for a large pressure difference and a comparatively low delivery volume and the blower for the low pressure circuit 12 for a high delivery volume and a comparatively low pressure difference is designed.
  • the low-pressure circuit 12 has a suction channel 16, which extends from a suction connection 18 via a suction chamber 20 through a filter device 22 to a blower connection 24, to which the low-pressure blower is connected with its suction side.
  • the filter device 22 is here suspended in a filter holding frame 26 and flows through from bottom to top. It is arranged in the upper region of the suction space 20, which, like the filter device 22, has a comparatively large flow cross section. As a result, the flow velocity of the suction air flow is greatly reduced in a manner known per se, for example to one tenth of the flow velocity in the suction connection 18.
  • the filter device 22 which extends essentially horizontally, is comparatively smooth on its suction side 28, so that accumulating fiber fly is easy in the cleaning operation is solvable.
  • the suction connection 18 has an axis 30 which extends essentially horizontally and runs clearly below the filter device 22.
  • a non-return flap 32 is provided between the suction connection 18 and the suction space 20 and is pivotally mounted on a swivel bearing 34 just above the suction connection.
  • the possible pivoting movement of the check valve 32 is limited on the one hand by the suction connection 18 and on the other hand by an impact surface 36, so that the check valve 32 extends from the vertical position, in which the suction connection 18 is essentially not closed, to an oblique position of somewhat more can extend as 45 °.
  • the baffle 36 is comparatively stable, so that it forms a hard stop for the check valve 32.
  • the suction air stream emerging from the suction connection 18, which is enriched with fiber fly, is deflected obliquely / downwards by the baffle surface 36 and the non-return flap 32 which forms an extension of the baffle surface 36 so that it reaches the opposite area of the suction chamber. Due to the large diameter of the suction space 20, the flow is calmed and evened out, so that a large part of the fiber flight carried settles on the bottom of the suction space 20.
  • the bottom of the suction space 20 is in turn formed by a cleaning flap 38 which is mounted on a further pivot bearing 40 and can be pivoted from the horizontal position in which it forms a bottom of the substantially sealed suction space 20 into an almost vertical position which cleaning operation is possible.
  • the cleaning flap 38 is closed, i.e. in the horizontal position in which it forms a floor for the suction space 20.
  • the check valve 32 In suction operation of the low-pressure circuit 12, the check valve 32 is also pulled into the inclined position by the action of the low-pressure blower, in which it rests on the baffle surface 36. A middle position between this position and the closed position (cleaning operation) of the check valve 32 is indicated by dashed lines in FIG. 1.
  • a filter cake (not shown) accumulates at the bottom of the filter device 22, which increases the suction resistance and reduces the flow speed of the low-pressure circuit.
  • the system switches over to filter cleaning operation.
  • the suction air flow from the blower connection 24 is interrupted by flaps (not shown) and a blown air flow is passed via a cleaning connection 42 shown in broken lines, which opens into the suction space 20 above the filter device 22.
  • the blown air flow creates an overpressure in the suction chamber 20, which leads to the non-return flap 32 and the cleaning flap 38 each moving into the other position: the non-return flap 32 is thrown into the position sealing the suction port 18 and the cleaning flap 38 into that almost vertical position.
  • the blown air stream removes the filter cake located at the bottom of the filter device 22 and initially adheres there and reaches a collecting container 44 which is located below the suction space.
  • the diameter of the collecting container 44 corresponds approximately to that of the suction chamber, so that there is a low flow velocity and the filter cake finally settles there.
  • the high-pressure circuit 14 is provided with corresponding elements, so that suction operation and filter cleaning operation are also possible there.
  • the individual construction elements of the high-pressure circuit 14 are designated accordingly to the construction elements of the low-pressure circuit 12, the respective reference number being increased by 100 to distinguish them.
  • the suction channel 16 of the low-pressure circuit thus corresponds to a suction channel 116 of the high-pressure circuit, etc.
  • the collecting container 44 is common to both circles. The suction operation can be carried out decoupled from one another for the high pressure circuit 14 and for the low pressure circuit 12. However, simultaneous filter cleaning operation of the high pressure circuit 14 and the low pressure circuit 12 should be avoided as far as possible.
  • the circles 12 and 14 are combined via a common housing 46 which extends downwards, i.e.
  • a somewhat lengthened cleaning channel 148 is provided for the filter cleaning operation of the high pressure circuit 14, which has a diameter essentially corresponding to the suction chamber 120 and opens into the collecting container 44.
  • the flow diameter of the collecting container 44 is considerably larger than the diameter of the cleaning channel 148.
  • FIG. 2 shows a further embodiment with a double-acting valve flap.
  • the low-pressure blower 50 extends above the blower connection 24 and the high-pressure blower 150 extends above the blower connection 124.
  • FIG. 3 shows a third embodiment, which differs from the embodiment shown in FIGS. 1 and 2 by the special design of the high pressure circuit 14.
  • the high pressure circuit 14 is practically divided into two high pressure circuits 14A and 14B, the high pressure circuit 14A being the high pressure circuit 14 corresponds to FIG. 1.
  • the high-pressure circuit 14B has parts corresponding to the high-pressure circuit 14A, the reference symbols of which, for the sake of simplicity, are each increased by 100 compared to the reference symbols of the high-pressure circuit 14A (or 14 in FIGS. 1 and 2).
  • a slide 52 is provided which extends between the filter devices 222 and 122 and the high pressure blower 150 and optionally switches on one of the two high pressure circuits 14A and 14B.
  • the high-pressure circuit 14B is equipped with a collecting container 54, which is used to hold particularly contaminated fiber fly.
  • the collecting container 44 is provided for the reuse of the fiber fly collected there, while the fiber fly collected in the collecting container 54 is to be disposed of separately.
  • the suction connections 118 and 218 are each provided at suitable locations below the filter devices 122 and 222, the suction connection 222 being connected to a suction mouthpiece for greasy fiber fly.
  • the slide 52 is coupled to a switching device in such a way that the high-pressure circuit 14A or 14B which is in each case switched off is put into cleaning operation.
  • a switching device for this purpose, some air is branched off from the low-pressure circuit 12 via a corresponding switching device, so that the filter devices 122 and 222 can be cleaned quite intensively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Massaging Devices (AREA)
  • Cleaning In General (AREA)
  • Manipulator (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Claims (11)

  1. Groupe d'aspiration, équipé de deux ventilateurs, pour le nettoyage de machines textiles, dont le raccord d'aspiration est raccordé respectivement à un système de filtrage (22, 122), un ventilateur (150) travaillant avec une importante pression différentielle et un faible volume déplacé et un autre ventilateur (50) travaillant avec une faible pression différentielle et un important volume déplacé, et des systèmes de filtrage (21, 121) pouvant être vidés pour le nettoyage par inversion du flux d'air, caractérisé en ce que les systèmes de filtrage (22, 122) sont affectés à un bac collecteur (44) dans lequel on peut collecter au choix les gâteaux de filtrage des différents systèmes de filtrage (22, 122).
  2. Groupe d'aspiration selon la revendication 1, caractérisé en ce que le ventilateur haute pression est raccordé à au moins une buse d'aspiration qui est utilisée pour le nettoyage des clapets de noix, le nettoyage des ballons ou éléments similaires et est en particulier raccordé à une buse d'aspiration avec laquelle le duvet fibreux contenant des graisses peut être aspiré dans la zone du banc d'étirage.
  3. Groupe d'aspiration selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu un système de commutation pour les systèmes de filtrage (22, 122), avec lequel on peut collecter dans un bac collecteur (44), au choix, soit le duvet fibreux du ventilateur haute pression soit le duvet fibreux du ventilateur basse pression.
  4. Groupe d'aspiration selon l'une des revendications précédentes, caractérisé en ce qu'un système de commutation pour un circuit haute pression (14) ou un circuit basse pression (12) peut être commandé de façon à ce que le bac collecteur (44) puisse être vidé avant l'actionnement du système de commutation.
  5. Groupe d'aspiration selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu un système de commutation avec lequel un flux d'air de nettoyage des filtres provenant d'un raccord de nettoyage (42, 142) peut être dirigé, en particulier instantanément, à travers un des systèmes de filtrage (22, 122, 222).
  6. Groupe d'aspiration selon l'une des revendications précédentes, caractérisé en ce que le ventilateur haute pression (150) est raccordé, dans sa gaine d'aspiration, à deux systèmes de filtrage (122, 222) montés parallèlement l'un à l'autre, un de ces systèmes de filtrage (222) étant relié à des embouchures d'aspiration pour l'aspiration de fibres contenant beaucoup de graisses tandis que l'autre système de filtrage (122) est relié à des embouchures d'aspiration pour l'aspiration de fibres de haute qualité.
  7. Groupe d'aspiration selon l'une des revendications précédentes, caractérisé en ce que les systèmes de filtrage (22, 122, 222) sont suspendus au-dessus d'une chambre d'aspiration (20, 120, 220) de grand volume qui présente un raccord d'aspiration (18, 118, 218) qui est couvert par une chicane oblique (36, 136).
  8. Groupe d'aspiration selon l'une des revendications précédentes, caractérisé en ce qu'un raccord d'aspiration (18, 118, 218) destiné à la chambre d'aspiration (20, 120, 220) peut être fermé par un clapet antiretour (32, 132, 232) au-dessous d'un système de filtrage (22, 122, 222).
  9. Groupe d'aspiration selon l'une des revendications précédentes, caractérisé en ce qu'un clapet antiretour (32, 132) pour le flux d'air d'aspiration est suspendu, de façon à pouvoir tourner, au-dessus d'un raccord d'aspiration (18, 118, 218) d'une chambre d'aspiration (20, 120, 220) et en ce qu'une chicane (36, 136), située au-dessus de ce clapet, constitue une butée pour le clapet antiretour (32, 132).
  10. Groupe d'aspiration selon l'une des revendications précédentes, caractérisé en ce que des clapets antiretour (32, 132) des raccords d'aspiration (18, 118, 218) peuvent être fermés instantanément pour le lancement des résidus de duvet fibreux gras.
  11. Groupe d'aspiration selon l'une des revendications précédentes, caractérisé en ce que, en plus, un autre système de filtrage (222) est prévu pour la séparation des impuretés qui ne doivent pas pénétrer dans le bac collecteur (44), un bac collecteur séparé (24) étant affecté au système de filtrage (222), bac collecteur séparé dans lequel le gâteau de filtrage peut être collecté.
EP90118219A 1989-09-21 1990-09-21 Dispositif d'aspiration Expired - Lifetime EP0418929B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8911278U DE8911278U1 (de) 1989-09-21 1989-09-21 Saugaggregat
DE8911278U 1989-09-21

Publications (3)

Publication Number Publication Date
EP0418929A2 EP0418929A2 (fr) 1991-03-27
EP0418929A3 EP0418929A3 (en) 1991-07-17
EP0418929B1 true EP0418929B1 (fr) 1994-12-28

Family

ID=6843065

Family Applications (1)

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EP90118219A Expired - Lifetime EP0418929B1 (fr) 1989-09-21 1990-09-21 Dispositif d'aspiration

Country Status (4)

Country Link
EP (1) EP0418929B1 (fr)
AT (1) ATE116385T1 (fr)
DE (2) DE8911278U1 (fr)
ES (1) ES2065454T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5720075A (en) * 1995-07-14 1998-02-24 Rieter Ingolstadt Spinnereimaschinenbau Ag Manual suction device for textile machine cleaning

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10501592A (ja) * 1995-04-07 1998-02-10 マシーネンフアブリーク リーテル アクチエンゲゼルシヤフト 中間貯え装置
DE19528064A1 (de) * 1995-07-14 1997-01-16 Rieter Ingolstadt Spinnerei Manuelle Absaugvorrichtung zur Maschinenreinigung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412545A (en) * 1967-05-22 1968-11-26 Luwa Ltd Pneumatic cleaner for roving frames and the like
DE2419188C2 (de) * 1974-04-20 1984-07-05 Ltg Lufttechnische Gmbh, 7000 Stuttgart Reinigungseinrichtung für eine Flügelspinnmaschine
JPS61194229A (ja) * 1985-02-20 1986-08-28 Nippon Spindle Mfg Co Ltd 紡機に対するニユ−マチツククリヤラのフイルタボツクス
DE3527656A1 (de) * 1985-08-01 1987-02-12 Zinser Textilmaschinen Gmbh Filterkasten zum ausfiltern von fasern, flug- und anderen verunreinigungen aus von einer textilmaschine, insbesondere spinnereimaschine, abgesaugter luft
JPS6350537A (ja) * 1986-08-13 1988-03-03 Toyota Autom Loom Works Ltd 紡機清掃用ブロワの吸気口の清掃方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5720075A (en) * 1995-07-14 1998-02-24 Rieter Ingolstadt Spinnereimaschinenbau Ag Manual suction device for textile machine cleaning

Also Published As

Publication number Publication date
ES2065454T3 (es) 1995-02-16
EP0418929A2 (fr) 1991-03-27
EP0418929A3 (en) 1991-07-17
ATE116385T1 (de) 1995-01-15
DE8911278U1 (de) 1989-11-23
DE59008124D1 (de) 1995-02-09

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