EP0312864B1 - Dispositif de soufflage - Google Patents

Dispositif de soufflage Download PDF

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Publication number
EP0312864B1
EP0312864B1 EP88116735A EP88116735A EP0312864B1 EP 0312864 B1 EP0312864 B1 EP 0312864B1 EP 88116735 A EP88116735 A EP 88116735A EP 88116735 A EP88116735 A EP 88116735A EP 0312864 B1 EP0312864 B1 EP 0312864B1
Authority
EP
European Patent Office
Prior art keywords
blower
pressure outlet
blowing
blowing means
lines
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
EP88116735A
Other languages
German (de)
English (en)
Other versions
EP0312864A1 (fr
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.)
Sohler Airtex GmbH
Original Assignee
Sohler Airtex GmbH
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 Sohler Airtex GmbH filed Critical Sohler Airtex GmbH
Publication of EP0312864A1 publication Critical patent/EP0312864A1/fr
Application granted granted Critical
Publication of EP0312864B1 publication Critical patent/EP0312864B1/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

Definitions

  • the invention relates to a blowing device, in particular for cleaning textile machines, according to the preamble of claim 1.
  • blow lines designed as blow hoses which act with their nozzle mouthpieces on different areas of the textile machines to be cleaned, are individually switched off in order to increase the blower output when the blow lines are not switched off.
  • blowing devices however, there is the disadvantage that the control by means of the required flap mechanisms, valves, etc. is complex.
  • a first comparatively thick blow line is initially provided on the fan outlet side, in which vortices generated by the fan can calm down.
  • This line is connected to a line distributor via which the available blown air is divided into three blower lines, one of these blower lines being branched further downstream.
  • any automatic switching devices would have to be arranged quite far down in the machine area.
  • the known solution is fluidically unfavorable, because the branching in connection with the shut-off elements creates further vortices that reduce the overall performance.
  • the invention has for its object to provide a blowing device according to the preamble of claim 1, which is simple to manufacture and flexible in the application of different blowing capacities, partial loading of a blowing line is possible without complex additional measures and these advantages in spite of everything not be bought with fluidic disadvantages
  • blower housing Due to the rotatable design of the blower housing, it is first possible to bring the pressure port into the desired angular position, so that the desired blowing line, which extends radially outward from the pressure port, is optionally acted upon.
  • the special advantage of a radial blower is exploited that - at least with axial air supply - there is an angle independence for the pressure port, so that the delivery rate remains constant regardless of the absolute angular position of the pressure port, based on the fan axis.
  • the shape of the impeller is not critical; blades with both positive and negative curvature can be used.
  • the involute which is already present in the tangential or radial blower and is closed off by the pressure connection, can be extended without deflection by the blow line which is acted upon, so that the economy of the blower is optimized. If the transitions between the pressure port and the blower line are designed to have an appropriate flow, the efficiency of the blower does not differ from a blower that can only act on one blower line.
  • involutes located opposite one another and adjoining pressure ports to use per impeller, the overall structure of two involute housing outer walls and adjoining pressure ports being formed in one piece and pivotable overall.
  • the further pressure port can then either be connected to a plurality of further blow lines or, via a flexible hose, to a single blow line which is always to be acted on.
  • blower line that should be subjected to comparatively little compressed air can be made narrower than the pressure port, so that even if the pressure port extends completely over the inlet of this blower line, the entire blower output of the blower is not introduced into this blower line. This is important, for example, if sensitive areas such as the thread guide area are to be blown off in textile machines. In this case, it is also advisable to pivot the pressure port into a position in which two blowing lines are acted upon, the relative loading of the blowing lines relative to one another being controllable in a sensitive manner.
  • the pressure port can be provided with a shut-off wall which adjoins the pressure port in the pivoting direction, that is to say tangentially, the radius of which corresponds to the distance from the fan axis.
  • This barrier then covers the respective adjacent entrances of the blow lines, so that they are sealed even when the inner blower housing is in intermediate positions and no power is lost there.
  • the inputs of the blow lines are also provided with a radius corresponding to the distance from the fan axis.
  • the swiveling fan housing is mounted coaxially with the fan, with the usual flat design of radial fans one-sided mounting on the motor side of the fan wheel is sufficient. This can be combined favorably with an adjusting device for the swivel position of the fan housing - for example using a rack and pinion drive or a rotating spindle.
  • the entire inner blower housing including the adjusting device and the inputs of the blower lines can be accommodated in an outer and fixed blower housing, the outer blower housing also being able to be omitted in certain - low-dust - applications, and only one suction area for the blower wheel being provided got to.
  • the blow lines can be combined in a compact manner, namely by using a multiple line extending over the entire width of the inputs of the blow lines, the majority of the blow lines then being spatially combined in a multiple channel.
  • This can consist of a tube with a rectangular cross-section and a plurality of webs which subdivide the individual blower lines and which is led downwards together, the individual blower lines then possibly passing into hoses and opening into their respective nozzle mouthpieces without loss of flow. It is particularly advantageous here that there is no branching of an air stream.
  • the impeller 10 is rotatably mounted on the blower axis 12 and driven by a blower motor, not shown.
  • the fan wheel 10 is surrounded by a pivotable inner fan housing 14 which is mounted coaxially with the fan wheel 10.
  • the pivot position of the inner blower housing can be adjusted by means of an adjusting device 16, wherein a motor-operated threaded spindle, a rack and pinion drive or a pinion acting directly on a toothed ring attached to the inner blower housing can be used as the adjusting device.
  • the inner blower housing 14 consists of an upper end wall 18, an end wall opposite the upper end wall 18 and not shown, and a side wall, which is designed in a manner known per se in the form of an involute 20.
  • a further involute 22, which is opposite the involute 20, is provided, each involute extending almost 180 ° around the impeller 10.
  • the involutes 20 and 22 end in pressure ports 24 and 26, which are formed in one piece with the pivotable inner blower housing 14.
  • the pressure ports 24 and 26 are slightly bent outwards relative to the extension of the involutes 20 and 22, so that the axes of the pressure ports 24 and 26 are essentially coaxial with one another and the fan axis 12 is aligned.
  • the pressure ports 24 and 26 each have an outer radius 28 and 30 which is adapted to an inner radius 32 of inputs 34A, 34B and 34C of blow lines 36A, 36B and 36C.
  • An embodiment of the blow lines and associated inputs shown in FIG. 1 for the pressure port 24 is in a corresponding manner for the Pressure port 26 provided, but not shown in Fig. 1.
  • the inputs 34A, 34B and 34C extend directly next to one another, the gap between the inner radius 32 and the outer radius 28 being chosen to be very small, but in such a way that any housing vibrations are not transmitted.
  • an additional seal can be provided via rubber lips.
  • the height and the width of the pressure port 24 correspond as exactly as possible to the height and width of an inlet 34C, so that in the position of the blower housing 14 shown in FIG. 1, the full air output is introduced into the blow line 36C almost without deflection and without additional flow resistance.
  • the inlet 34A is narrower than the inlet 34B and 34C, and a position of the pressure port 24 is provided in which the inlet 34A and the inlet 34B are partially acted upon.
  • the pressure connection 24 is provided with a shut-off wall 38 which extends laterally, ie in the tangential direction on the pressure connection 24, is fixedly attached to the pressure connection 24 and one has the radius corresponding to the outer radius 28.
  • the blow lines 36A, 36B and 36C are spatially combined in a multiple channel 40, the multiple channel 40 having a substantially rectangular cross section.
  • the blow lines 36A and 36B are separated from one another by a separator 42A and the blow lines 36B and 36C are separated by a separator 42B and are otherwise essentially parallel to one another.
  • the multi-channel 40 is bent downwards and runs along the textile machines located below the movable blowing device, each blowing line 36A, 36B and 36C ends at the desired location in a nozzle mouthpiece, not shown.
  • the blowing device according to the invention is advantageously accommodated in an outer housing 44, the cover of which is shown removed to simplify the illustration in FIG. 1.
  • the cover has a filter device for the suction area of the blower in a manner known per se.
  • the blow lines adjoining the pressure connection 26 essentially correspond to the structure of the blow lines 36A, 36B and 36C, so that overall there is a symmetrical structure.
  • Fig. 2 the inputs 34A, 34B and 34C are shown side by side in the development.
  • the entrance 34A has a rectangular cross section and is narrower than the substantially square entrances 34B and 34C. In the illustrated embodiment, these are at inputs 34A, 34B and 34C.
  • the blowing lines 36A, 36B and 36C adjoining the inputs 34A, 34B and 34C are each aligned with different types of textile machines, so that both ring spinning and winding machines can be cleaned with a composite system.
  • the inputs are switched over by actuating the actuating devices 16 (FIG. 1) automatically when the blowing device is moved over the corresponding textile machines.
  • an additional blow line can be used for the so-called whirl cleaning, which is required at periodic intervals in ring spinning machines and which requires a separate blow line.
  • a reduced blowing power is made available for cleaning the winding machines via the input 34A, as is recommended by the textile machine manufacturers.
  • locking devices can be provided which, in conjunction with a corresponding resilient design of the actuating device 16, snap the blower housing in such a way that the pressure port 24 extends coaxially with the input being acted upon.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (9)

1. Dispositif de soufflage spécialement mobile pour le nettoyage de machines textiles, par laquelle un ventilateur comprend un rotor tangentiel ou un rotor radial, dont le courant sortant d'air est conduit le long d'une développante, caractérisé en ce que la sortie d'air (24, 26), ensemble avec la développante (20, 22), forment un boitier de ventilateur (14) qui est pivotable sur l'axe du ventilateur.
2. Dispositif de soufflage selon la revendication 1, caractérisé en ce que la sortie d'air (24) est pivotable au moins sur deux positions dans lesquelles il suit sa marche d'une forme coaxiale avec chacun un tuyau de soufflage (36A, 36B, 36C), tous deux se raccordent à la sortie d'air (24) et sont étanchés.
3. Dispositif de soufflage selon l'une des revendications précédentes, caractérisé en ce que par son ampleur latérale à côté de la sortie d'air (24), à l'extérieur du boitier intérieur du ventilateur pivotable, des surfaces d'étancheité qui ayant la forme particulière d'une cloison de séparation (38) sont prévues à l'étanchement des entrées (36A, 36B, 36C) des tuyaux de soufflage (36A, 36B, 36C), qui ne sont pas protégées par la sortie d'air (24).
4. Dispositif de soufflage selon l'une des revendications précédentes, caracterisé par le fait que la sortie d'air (24), à partir de la développante (20), est courbée vers l'extérieur et l'axe de la sortie d'air (24) traverse à l'axe du ventilateur (12).
5. Dispositif de soufflage selon l'une des revendications précédentes, caracterisé par le fait que l'intérieur du boitier du ventilateur (12) comprend deux sorties d'air (24, 26), de préférence situées face à face qui fournissent plusieurs tuyaux de soufflage.
6. Dispositif de soufflage selon l'une des revendications précédentes, caracterisé par le fait qu'un dispositif à crans a été prévu, qui laisse encliqueter les sorties d'air sur les tuyaux de soufflage (36A, 36B, 36C) dans le cas d'une orientation coaxiale.
7. Dispositif de soufflage selon l'une des revendications précédentes, caracterisé par le fait que l'intérieur du boitier du ventilateur (14) à la suite d'un dispositif du réglage est pivotable, ce dispositif du réglage s'appuie sur le boitier extérieur et peut être dirigé dépendant de la position du mouvement du dispositif de soufflage.
8. Dispositif de soufflage selon l'une des revendications précédentes, caractérisé par le fait que les tuyaux de soufflage (36A, 36B, 36C) débouchent dans les buses de projection qui sont montées à différents niveaux de hauteur et/ou d'alignement et qui pendant le fonctionnement du dispositif de soufflage permettent de nettoyer différentes sections des machines à nettoyer.
9. Dispositif de soufflage selon l'une des revendications précédentes, caractérisé par le fait que le boitier intérieur du ventilateur (14) en face du boitier extérieur (44) soit pivotable perpétuellement, ainsi dans une position intermédiaire entre deux positions de la sortie d'air (24) coaxiale des tuyaux de soufflage, les deux tuyaux sont fournis à une sortie d'air en même temps.
EP88116735A 1987-10-12 1988-10-08 Dispositif de soufflage Expired - Lifetime EP0312864B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3734497 1987-10-12
DE19873734497 DE3734497A1 (de) 1987-10-12 1987-10-12 Blasvorrichtung

Publications (2)

Publication Number Publication Date
EP0312864A1 EP0312864A1 (fr) 1989-04-26
EP0312864B1 true EP0312864B1 (fr) 1991-10-16

Family

ID=6338164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88116735A Expired - Lifetime EP0312864B1 (fr) 1987-10-12 1988-10-08 Dispositif de soufflage

Country Status (3)

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EP (1) EP0312864B1 (fr)
DE (2) DE3734497A1 (fr)
ES (1) ES2025754T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4009878C2 (de) * 1990-03-28 2001-01-04 Schlafhorst & Co W Luftsteuereinrichtung einer Spinnmaschine
DE4423441A1 (de) * 1993-07-14 1995-01-19 Rieter Ag Maschf Absauganlage für Spinnmaschine
DE59909363D1 (de) * 1998-01-08 2004-06-09 Zurecon Ag Zuerich Lüftungsanlage
US6050299A (en) * 1998-12-02 2000-04-18 Uniwave, Inc. High pressure air sequencer
DE10050025A1 (de) * 2000-10-06 2002-04-11 Woelfle Gmbh Lüftungsgerät, insbesondere für Fahrzeug- oder Maschinenkabinen
WO2009021356A1 (fr) * 2007-08-13 2009-02-19 Shenzhen Longgang Jinyixin Electronic Factory Soufflante centrifuge et dispositif d'air frais présentant la soufflante
CN108356050A (zh) * 2018-03-21 2018-08-03 东莞市智标精工机械有限公司 包裹式吸尘罩

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE913144C (de) * 1949-02-09 1954-06-08 Continentale D Applic Tech Spinnmaschine mit Fadenbruch-Absauganlage
US3627584A (en) * 1969-06-10 1971-12-14 Parks Cramer Ltd Method for pneumatically cleaning open-end spinning machines
FR2463366B2 (fr) * 1979-08-07 1986-03-28 Fimec Installation de ventilation mecanique a controle automatique

Also Published As

Publication number Publication date
ES2025754T3 (es) 1992-04-01
DE3734497A1 (de) 1989-04-20
DE3865624D1 (de) 1991-11-21
EP0312864A1 (fr) 1989-04-26

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