DE919989C - Method and device for the production of fiber slivers by means of a sieve drum compactor - Google Patents

Method and device for the production of fiber slivers by means of a sieve drum compactor

Info

Publication number
DE919989C
DE919989C DESCH10820A DESC010820A DE919989C DE 919989 C DE919989 C DE 919989C DE SCH10820 A DESCH10820 A DE SCH10820A DE SC010820 A DESC010820 A DE SC010820A DE 919989 C DE919989 C DE 919989C
Authority
DE
Germany
Prior art keywords
sieve drum
fiber
production
negative pressure
guides
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
Application number
DESCH10820A
Other languages
German (de)
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.)
MARGARETE LIESBET SCHLEGEL GEB
Original Assignee
MARGARETE LIESBET SCHLEGEL GEB
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 MARGARETE LIESBET SCHLEGEL GEB filed Critical MARGARETE LIESBET SCHLEGEL GEB
Priority to DESCH10820A priority Critical patent/DE919989C/en
Application granted granted Critical
Publication of DE919989C publication Critical patent/DE919989C/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00Lap-forming devices not integral with machines specified above

Landscapes

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

Description

Zur Vorbereitung für das Spinnen wird das Fasermaterial über Karden geleitet, auf denen neben der Beseitigung von Verunreinigungen die gleichzeitig erstrebte Faserrichtung nur unvollkommen erreicht werden kann. Es ergeben sich ungleiche Flore, die zu Garnen mit dicken und dünnen Stellen führen.In preparation for spinning, the fiber material is carded passed on which in addition to removing impurities at the same time desired fiber direction can only be achieved imperfectly. There are unequal Piles that result in yarns with thick and thin spots.

Ein genügend gleichmäßiges, aus im wesentlichen parallel nebeneinanderliegenden Einzelfasern bestehendes Garn oder Band kann man erhalten, wenn man das Fasergut in einem Luftstrom der Oberfläche einer sich drehenden Siebtrommel zuführt, auf deren Umfang sich die Fasern unter der Richtwirkung von auf der Trommeloberfläche vorgesehenen, vorteilhaft rinnenartigen Führungen im wesentlichen parallel zueinander ablegen und so abgenommen werden können. Dies geschieht bei schonendster Behandlung des Fasermaterials. Dichte und Dicke des Faserstranges können durch die Stärke des Saugluftstromes, durch die Größe der Sieböffnungen, durch die Umlaufgeschwindigkeit der Siebtrommel und durch entsprechende Bemessung der rinnenartigen Führungen in beliebigen Grenzen geändert werden.A sufficiently uniform one, consisting of essentially parallel juxtaposed Single-fiber yarn or tape can be obtained by using the fiber material in a stream of air to the surface of a rotating sieve drum the circumference of which the fibers move under the directional effect of on the drum surface provided, advantageously channel-like guides essentially parallel to one another and can be removed in this way. This happens with the gentlest treatment of the fiber material. The density and thickness of the fiber strand can be determined by the strength of the Suction air flow, through the size of the sieve openings, through the speed of rotation the sieve drum and by dimensioning the channel-like guides in any limits can be changed.

Die Regelung eines an Siebtrommelverdichtern sich bildenden Faserbandes oder -vlieses erfolgt heute im allgemeinen durch die vorgeschalteten Einrichtungen. Bei Schlagmaschinen und anderen Horizontalöffnern ist zum Regeln des durchlaufenden Materials eine sogenannte Volumensteuerung vorgesehen, welche die Materialmengen beim Passieren zwischen beweglichen Muldenhebeln und einer oberen Einzugwalze abtasten. Hier wirken die Ausschläge der Muldenhebel über ein Regelgetriebe auf die Drehzahl der Einzugwalze ein, wodurch die Steuerung der Fasermenge, die von dem Schlagflügel abgeschlagen und von der Siebtrommel angesaugt wird, erfolgt.The regulation of a sliver formed on a sieve drum compactor or fleece is generally done today by the upstream facilities. In the case of impact machines and other horizontal openers, the continuous flow is to be regulated Materials a so-called volume control is provided, which the material quantities feel when passing between movable trough levers and an upper feed roller. Here, the deflections of the trough levers act on the speed via a control gear the feed roller, thereby controlling the amount of fiber coming from the flapping wing is knocked off and sucked in by the sieve drum, takes place.

Da der Transport der Fasern zur Siebtrommel durch einen Luftstrom erfolgt (vgl. die Abbildung), der dadurch zustande kommt, daß die Luft L durch die Siebtrommeloberfläche hindurch in eine Saugleitung K des Absaugeventilators gesaugt wird, herrscht in dieser Saugleitung K ein Unterdruck. Es hat sich gezeigt, daß dieser Unterdruck zum Steuern der Umlaufgeschwindigkeit der Siebtrommel S benutzt werden kann. Der Unterdruck wird größer werden, wenn die Faserschicht F an der Siebtrommel S dicker wird, d. h. der durchgehenden Luft L einen größeren Widerstand entgegensetzt. Der Unterdruck wird kleiner werden, wenn die Faserschicht F dünner wird und die Luft L sie leichter durchdringen kann.Because the fibers are transported to the sieve drum by an air stream takes place (see. The figure), which comes about that the air L through the Sieve drum surface sucked through into a suction line K of the suction fan is, there is a negative pressure in this suction line K. It has been shown that this negative pressure to control the speed of rotation of the screen drum S is used can be. The negative pressure will be greater when the fiber layer F on the sieve drum S becomes thicker, i.e. H. the passing air L opposes a greater resistance. The negative pressure will be smaller as the fiber layer F becomes thinner and the Air L can penetrate them more easily.

Erfindungsgemäß wird daher beim Herstellen von Faserbändern mittels eines Siebtrommelverdichters mit rinnenartigen Führungen in Abhängigkeit von dem Unterdruck in der Luftabsaugeleitung K der Siebtrommel S der Siebtrommelregelantrieb RS -derart gesteuert, daß die sich in den Führungen je Längeneinheit ablagernde Fasergutmenge F ungefähr gleichbleibt.According to the invention is therefore in the manufacture of slivers by means of a sieve drum compressor with channel-like guides depending on the Negative pressure in the air suction line K of the sieve drum S of the sieve drum regulating drive RS controlled in such a way that the deposits per unit length in the guides Amount of fiber F remains approximately the same.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zum Herstellen von Faserbändern mittels eines Siebtrommelverdichters mit rinnenartigen Führungen für das Fasergut, dadurch gekennzeichnet, daß in Abhängigkeit von dem Unterdruck in der Luftabsaugeleitung der Siebtrommel der Siebtrommelregelantrieb derart gesteuert wird, daß die sich in den Führungen- je -Längeneinheit ablagernde Fasergutmenge ungefähr gleichbleibt. a. Vorrichtung zum Durchführen des Verfahrens nach Anspruch z, dadurch gekennzeichnet, daß eine an sich bekannte Einrichtung zum Messen des Unterdruckes einen regelbaren Antrieb für die Siebtrommeln steuert.PATENT CLAIMS: i. Process for the production of fiber ribbons by means of a sieve drum compressor with channel-like guides for the fiber material, thereby characterized in that depending on the negative pressure in the air suction line the sieve drum of the sieve drum control drive is controlled in such a way that the The amount of fiber deposited in the guides per unit of length remains approximately the same. a. Device for performing the method according to claim z, characterized in that that a known device for measuring the negative pressure is a controllable one Controls the drive for the screening drums.
DESCH10820A 1950-08-20 1950-08-20 Method and device for the production of fiber slivers by means of a sieve drum compactor Expired DE919989C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH10820A DE919989C (en) 1950-08-20 1950-08-20 Method and device for the production of fiber slivers by means of a sieve drum compactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH10820A DE919989C (en) 1950-08-20 1950-08-20 Method and device for the production of fiber slivers by means of a sieve drum compactor

Publications (1)

Publication Number Publication Date
DE919989C true DE919989C (en) 1954-11-08

Family

ID=7426377

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH10820A Expired DE919989C (en) 1950-08-20 1950-08-20 Method and device for the production of fiber slivers by means of a sieve drum compactor

Country Status (1)

Country Link
DE (1) DE919989C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803379A1 (en) * 1977-03-18 1978-09-21 Rieter Ag Maschf METHOD AND DEVICE FOR FORMING A WADDING WEB OF CONSTANT WEIGHT PER UNIT OF LENGTH
FR2692915A1 (en) * 1992-06-26 1993-12-31 Fehrer Ernst Device for manufacturing a fiber mat.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803379A1 (en) * 1977-03-18 1978-09-21 Rieter Ag Maschf METHOD AND DEVICE FOR FORMING A WADDING WEB OF CONSTANT WEIGHT PER UNIT OF LENGTH
FR2692915A1 (en) * 1992-06-26 1993-12-31 Fehrer Ernst Device for manufacturing a fiber mat.

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