EP0418929A2 - Dispositif d'aspiration - Google Patents

Dispositif d'aspiration Download PDF

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Publication number
EP0418929A2
EP0418929A2 EP90118219A EP90118219A EP0418929A2 EP 0418929 A2 EP0418929 A2 EP 0418929A2 EP 90118219 A EP90118219 A EP 90118219A EP 90118219 A EP90118219 A EP 90118219A EP 0418929 A2 EP0418929 A2 EP 0418929A2
Authority
EP
European Patent Office
Prior art keywords
suction
unit according
cleaning
pressure
suction unit
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.)
Granted
Application number
EP90118219A
Other languages
German (de)
English (en)
Other versions
EP0418929B1 (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
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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 fans have become known, which have various advantages with regard to the flexibility of the available suction or blowing power.
  • suction units equipped with two fans 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.
  • a suction unit of this type offers the possibility of providing an increased cleaning effect in a targeted manner at places of greater contamination and, moreover, of sucking off large quantities of fiber fly with the low-pressure blower.
  • the suction unit according to the invention which is equipped with two fans, with a high-pressure circuit and a low-pressure circuit, which can work both in succession and at the same time, there is first the advantage that the textile machine series can be cleaned with the greatest possible efficiency without any time delay .
  • both options are available in that the filter device assigned to each blower can be cleaned by deflecting the associated suction air flow. It is particularly favorable to provide 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 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 cleaning mode.
  • 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 fatty 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 surprisingly been found to be particularly favorable that the fat content is automatically equalized in the fat-free and fat-containing layers in the collecting container, so that the fiber fly is practically automatic is set to the desired average fat content. Very slightly greasy fibers, however, are less likely to be compressed so starx that they stick to the walls and bottom of the collecting container.
  • the collected fiber fly can also be reused.
  • a high-fat fiber fly to be fed to a separate high-pressure circuit, so that there are practically two high-pressure circuits and a large-volume low-pressure circuit.
  • a changeover between the grease high-pressure circuit assigned to a separate collecting container and the normal high-pressure circuit is carried out via a controlled change-over slide.
  • 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 12 and a low-pressure circuit 14.
  • 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 space 20 through a Filter device 22 extends to a blower port 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 rate of the suction air flow is greatly reduced in a manner known per se, for example to one tenth of the flow rate 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 can be easily released in the cleaning operation.
  • 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 chamber 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 inclined 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 / downward 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 region 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 at 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 the flow rate of the low pressure circuit reduced.
  • the system switches to 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 horizontal position.
  • the blown air flow 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 chamber.
  • 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 cleaning operation are also possible there.
  • the individual construction elements of the high-pressure circuit 14 are designated correspondingly to the construction elements of the low-pressure circuit 12, the respective reference number being increased by 100 to distinguish them.
  • a suction channel 116 of the high pressure circuit corresponds to the suction channel 16 of the low 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.
  • simultaneous 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 tapers downwards, ie towards the collecting container 44 is.
  • a somewhat elongated cleaning channel 148 is provided for the 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.
  • the high-pressure blower 50 extends above the blower connection 24 and the low-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 corresponding to the high-pressure circuit 14 according to FIG. 1.
  • the high-pressure circuit 14B has parts corresponding to the high-pressure circuit 14A, the reference numerals of which, for the sake of simplicity, are each increased by 100 compared to the reference numerals 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 low 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 flight accumulated there, while the fiber flight 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.
  • a switching device in such a way that the high-pressure circuit 14A or 14B which is switched off is put into the cleaning operation.
  • some air is branched off from the low-pressure circuit 12 via a corresponding switching device, so that the filter devices 122 and 122 can remain 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)
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 true EP0418929A2 (fr) 1991-03-27
EP0418929A3 EP0418929A3 (en) 1991-07-17
EP0418929B1 EP0418929B1 (fr) 1994-12-28

Family

ID=6843065

Family Applications (1)

Application Number Title Priority Date Filing Date
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
WO1996031641A1 (fr) * 1995-04-07 1996-10-10 Maschinenfabrik Rieter Ag Element de stockage intermediaire

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19528064A1 (de) * 1995-07-14 1997-01-16 Rieter Ingolstadt Spinnerei Manuelle Absaugvorrichtung zur Maschinenreinigung
EP0753612B1 (fr) * 1995-07-14 2000-02-02 Rieter Ingolstadt Spinnereimaschinenbau AG Appareil d'aspiration manuel pour le nettoyage de machines

Citations (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
DE2419188A1 (de) * 1974-04-20 1975-11-06 Ltg Lufttechnische Gmbh Reinigungseinrichtung fuer fluegelspinnmaschinen
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

Patent Citations (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
DE2419188A1 (de) * 1974-04-20 1975-11-06 Ltg Lufttechnische Gmbh Reinigungseinrichtung fuer fluegelspinnmaschinen
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

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 11, Nr. 18 (C-398)[2465], 17. Januar 1987; & JP-A-61 194 229 (NIPPON SPINDLE MFG. CO.) 28-08-1986 *
PATENT ABSTRACTS OF JAPAN, Band 12, Nr. 270 (C-515)[3117], 27. Juli 1988; & JP-A-63 050 537 (TOYOTA AUTOM. LOOM WORKS) 03-03-1988 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996031641A1 (fr) * 1995-04-07 1996-10-10 Maschinenfabrik Rieter Ag Element de stockage intermediaire
CN1077157C (zh) * 1995-04-07 2002-01-02 里特机械公司 在纺织机器中产生的废料的输出和汇集装置及方法

Also Published As

Publication number Publication date
ES2065454T3 (es) 1995-02-16
EP0418929B1 (fr) 1994-12-28
EP0418929A3 (en) 1991-07-17
ATE116385T1 (de) 1995-01-15
DE8911278U1 (de) 1989-11-23
DE59008124D1 (de) 1995-02-09

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