US3400518A - Apparatus for separating flock from an air stream - Google Patents

Apparatus for separating flock from an air stream Download PDF

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Publication number
US3400518A
US3400518A US580115A US58011566A US3400518A US 3400518 A US3400518 A US 3400518A US 580115 A US580115 A US 580115A US 58011566 A US58011566 A US 58011566A US 3400518 A US3400518 A US 3400518A
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United States
Prior art keywords
flock
filling
filling shaft
shaft
air stream
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
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US580115A
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English (en)
Inventor
Staheli Paul
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.)
Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
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Publication of US3400518A publication Critical patent/US3400518A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/02—Hoppers; Delivery shoots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/60—Devices for separating the materials from propellant gas

Definitions

  • This invention relates to an apparatus for separating flock. More particularly, this invention relates to an apparatus for separating flock from a stream of transporting air.
  • separator heads having sieve-drum separators have been used although such has required moving parts. This has involved greater expense as well as a certain degree of inspection and maintenance. Further, these systems have separated the total quantity of flock out of the transporting air stream so that each filling shaft has required a separate branch conduit leading into the shaft. Thus, notwithstanding that sieve-drums necessarily produce agglomerations of fibrous flock which impair uniform deposition, charging of a plurality of filling shafts set in series by means of a single transportation conduit cannot be realized with sieve-drums.
  • flock filling shafts have been provided with perforated walls so that the entire flock transporting air stream could be directed into the filling shafts and subsequently separated from the flock upon passin through the perforated wall.
  • These filling shafts have been provided with a series of weight-loaded pivotable flaps arranged in shingle fashion on the perforated wall in order to obtain a reliable filling of the shafts from the bottom to the top and to inhibit uncontrolled accumulation of the flock on the perforated wall thereby preventing plugging of the wall.
  • the flaps have been lifted directly above the level of the fibers by the air stream so as to control and limit deposition of the flock.
  • the flaps have in some instances been deranged resulting in plugging of the perforations and improper deposition of the flock.
  • the invention eliminates the drawbacks of the heretofore used devices in separating loosened fibrous flock out of a stream of air as indicated through a simpli- Patented Sept. 10, 168
  • the invention provides for the pneumatic charging of one or more filling shafts by a single flock-transporting conduit so that a part or the whole of the flock-transporting air stream can be separated out in one or more filling shafts.
  • the deposited flock is compacted not only by the weight of the column of fibrous material above but also by an above normal air pressure of the air stream delivered from the conduit in the filling shaft.
  • the fibrous material in the lower end of filling shaft is fed to an opening or fine-opening machine such, for example, as a carder.
  • the apparatus of the invention includes a plurality of filling shafts connected to a common pneumatic flocktransporting conduit.
  • Each filling shaft is provided at the bottom with a wad forming means and along at least one side with a channel which ends in a chamber at the lower end and which is placed under a lower pressure than the filling shaft.
  • the channel is separated from the filling shaft by a partition having a plurality of vertically disposed narrow slits of a width less than the size of the flock being deposited.
  • the partition permits a uniform accumulation of flock across the entire breadth of the filling shaft while allowing passage of the entire air stream through the filling shaft and channel.
  • FIG. 1 illustrates an individual flock filling shaft in a section along the line 1-1 of FIG. 2;
  • FIG. 2 illustrates a view taken on line II-II of FIG. 3;
  • FIG. 3 illustrates a view taken on line III-III of FIG 1;
  • FIG. 4 illustrates avariant of the form of construction of the shaft cross section analogous to FIG. 3;
  • FIG. 5 illustrates a variant of the withstanding organs of the filler shaft in section
  • FIG. 6 illustrates a double-flow shaft as a variant, in cross section
  • FIG. 7 illustrates an elevational view of a plurality of flock shafts set in series.
  • an apparatus for separating flock which is positioned between a mixing bale-opener (not shown) and a spinning machine (not shown) includes an air-conveying conduit 1 for conveying openedout fibrous flock 2 under an above normal pressure p from the mixing bale-opener into a head 3 of a filling shaft 4.
  • the filling shaft 4 is formed with a vertical wall 5 having a plurality of vertically disposed narrow slits 6, for example, of 3 mm. to 6 mm. wide, which separates the filling shaft 4 from a contiguous outflow channel 7.
  • the channel 7 is provided with a plurality of vertically disposed individual passages 8 running the length of the channel 7, each of which passages 8 is in communication with a slit 6 in the wall 5 of the filling shaft 4.
  • the interior of the filling shaft 4 is provided with a plurality of vertically disposed L-shaped plates 10 fastened to an outer wall 9 of the filling shaft.
  • the lower ends of the plates 10 are arranged so that the slits form a comb open at the bottom.
  • a plate 7' is disposed across the tops of the plates 10 to make the channel 7 of less height than the filling shaft 4.
  • the separating wall 5 can alternatively be formed by vertically disposed T-scction plates having webs 12 and flat plates 13 in alternating fashion at a spacing to provide a passage 11 between a pair of webs 12 with two slits 14.
  • the lower end of the filling shaft 4 receives the fibrous flock 2 for compaction of the deposited flock 15 into a wad for withdrawal by a wad forming means which consists of a pair of rollers 16, 17 positioned at the end of the filling shaft 4.
  • the rollers 16, 17 which are driven at the same peripheral speed include a sieve-drum positioned directly below the outflow channel 7 and a solid drum which is mounted to press against the sieve-drum under a suitable spring force.
  • the sieve-drum is placed under a pressure p being lower than the pressure 17 at the top of the outflow channel 7 and is covered exteriorly by a housing 19 which emerges from the channel 7.
  • the outlet pipe 18 is connected to the interior of the sievedrum 17 and for this purpose projects through the housing wall'covering the sieve-drum at one end.
  • air can only be drawn into the sieve-drum through the outflow channel when the filling shaft 4 has been filled somewhat. Prior to or during the very first flock deposition obviously the air will be sucked into the sieve-drum from the shaft 15.
  • the Wad forming and withdrawing device may consist of a pair of solid rollers 20, 21 which are of about the same size and which rotate at the same peripheral speed in counter direction.
  • the outflow channel 22 which ends on a slant opens directly into an interconnected outlet channel 23.
  • the slits in the separating wall 24 of the filling shaft extend to the solid roller 20 disposed below the channel 22.
  • the filling shaft can be formed with a pair of duplicate outflow channels 30, 31 disposed on opposite sides of the filling shaft which communicate with a common outlet pipe.
  • a plurality of filling shafts 25, 26, 27 each of which includes a separating head 28, 29, 29' are disposed in the path of the flock-transporting air stream so that the air stream can pass transversely through the foremost separating heads 23, 29 with the remainder of the flock-transporting air stream passing into the last separating head 29.
  • the last filling shaft 27 receives the flock not deposited in the other filling shafts 25, 26 so that a return of the transporting medium with any excess flock is unnecessary.
  • the separating apparatus of the invention has an outflow channel 1 meter wide (approximately the width of the carding machine) and 40 mm. deep.
  • the filling shaft is as wide and is 70 to 100 mm. deep.
  • the total height of the filling shaft is approximately 2 meters so that with a 75% degree of filling, 2 kg. of cotton is contained in the filling shaft.
  • the flock laden air stream flows into the filling shaft and thence through the slits of the separating wall under the influence of the lower pressure p into the outflow channel. Because of the vertical disposition of the slits, the deposited flock material does not remain suspended in front of the slits, but slides downward under gravity without passing through the slits into the outflow channel. However, should a few rare very small flocks pass through the slits, they are returned to the filling shaft by means of the sieve-drum at the bottom or else eliminated by direct removal without causing any trouble.
  • An apparatus for separating loosened fibrous flock from a transporting air stream comprising:
  • a flock-transporting conduit for conducting a flocktransporting air stream at a first pressure
  • At least one filling shaft connected to said conduit receiving the flock-transporting air stream for depositing of the flock therein
  • a wad forming means positioned below said filling shaft and channel for withdrawing the deposited flock, and a vertically disposed separating wall between said filling shaft and said outflow channel for separating the flock from the air stream, said wall having a plurality of vertically disposed slits for preventing passage of the flock therethrough whereby the flock slides down said wall to obtain a uniform deposition of the flock over the width of said shaft and the entire air stream passes through said shaft.
  • said wad forming means includes a pair of rollers pressed against each other, one of said rollers being a sieve-drum disposed under said channel.
  • said channel includes a plurality of vertically disposed passages in communication with said filling shaft through the slits in said wall.
  • each of said passages communicate with said filling shaft through one slit.
  • said separating wall includes a plurality of spaced parallel L- shaped plates forming said plurality of passages.
  • An apparatus for separating loosened fibrous flock from a transporting air stream comprising:
  • a filling shaft having a wad forming discharge device, a flock-transporting conduit interconnected to said filling shaft and maintained under an excess pressure
  • An apparatus for forming and condensing a flock column from a stream of flock-transporting air compris- References Cited mgr fin.
  • said 'wall having a plurality of ver- 2,878,893 3/ 1959 Madsen 55432 tically disposed slits for permitting passage of the air therethrough from said filling shaft into said space FOREIGN PATENTS and for separating the flock from the flock-transport- 1,302,240 7/ 1962 France.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US580115A 1966-04-05 1966-09-16 Apparatus for separating flock from an air stream Expired - Lifetime US3400518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH500966A CH437063A (de) 1966-04-05 1966-04-05 Vorrichtung zum Abscheiden von aufgelösten Faserflocken aus einem Transportluftstrom

Publications (1)

Publication Number Publication Date
US3400518A true US3400518A (en) 1968-09-10

Family

ID=4286364

Family Applications (1)

Application Number Title Priority Date Filing Date
US580115A Expired - Lifetime US3400518A (en) 1966-04-05 1966-09-16 Apparatus for separating flock from an air stream

Country Status (8)

Country Link
US (1) US3400518A (da)
AT (1) AT272159B (da)
BE (2) BE692905A (da)
CH (1) CH437063A (da)
DE (4) DE1946638U (da)
ES (3) ES124800Y (da)
GB (1) GB1133883A (da)
NL (1) NL147487B (da)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809440A (en) * 1971-10-28 1974-05-07 Truetzschler & Co Shaft for depositing fibre flock
JPS5182189U (da) * 1974-12-20 1976-07-01
US4176988A (en) * 1977-07-18 1979-12-04 Rieter Machine Works Ltd. Apparatus for separating opened fibre flocks from a transporting air stream
US5337455A (en) * 1989-02-17 1994-08-16 Hergeth Hollingsworth Gmbh Device and method for pneumatically feeding a feeding chute

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160829A (en) 1972-12-22 1979-07-10 Gist-Brocades N.V. Antibacterial 1,2,4-oxadiazolylacetamido cephalosporins
CH599989A5 (da) * 1976-08-24 1978-06-15 Rieter Ag Maschf
DE2939640C2 (de) * 1979-09-29 1982-02-18 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung zum Reinigen und Entstauben von Textilfaserflocken
IT1132747B (it) * 1979-09-29 1986-07-02 Truetzschler & Co Dispositivo per la pulitura e la depolverazione di fiocchi di fibre tessili
DE3149965C2 (de) * 1981-12-17 1984-08-30 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung an einer Karde oder Krempel zur Vlieserzeugung
DE3229402C2 (de) * 1982-08-06 1993-11-04 Truetzschler Gmbh & Co Kg Vorrichtung an einer karde oder krempel zur vlieserzeugung
DE3304571C1 (de) * 1983-02-10 1984-05-03 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung zum Abscheiden von aufgeloesten Faserflocken aus einem Luftstrom,z.B. Flockenbeschickung fuer eine Karde
DE3530534A1 (de) * 1985-08-27 1987-03-12 Hergeth Hubert Vorrichtung zum abscheiden von aufgeloesten faserflocken aus einem transportluftstrom
DE3632905C1 (en) * 1986-09-27 1988-04-07 Spinnbau Gmbh Apparatus for feeding fibre material to a willow, card or the like
DE3916986A1 (de) * 1989-05-24 1990-11-29 Rieter Ag Maschf Verteiler zur speisung einer mehrzahl von schaechten
US5408727A (en) * 1991-08-29 1995-04-25 Hergeth Hollingsworth Gmbh Method and apparatus for mixing and opening pneumatically supplied fiber material
DE4128929C2 (de) * 1991-08-30 1996-05-02 Spinnbau Gmbh Vorrichtung zum Herstellen von Fasermaterial oder dergleichen mit vorgebbarem Vorlagegewicht
IT1277653B1 (it) * 1994-10-10 1997-11-11 Truetzschler & Co Dispositivo per la separazione di fiocchi di fibre sciolti da una corrente d'aria, per esempio una carica di fiocchi per una carda,
DE102010034778A1 (de) * 2010-08-18 2012-02-23 Hubert Hergeth Trennstab

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1720702A (en) * 1928-05-04 1929-07-16 Streun John Arnold Cotton separator
US1855381A (en) * 1925-11-20 1932-04-26 Hudson H Bubar Separator system
US1975335A (en) * 1931-07-06 1934-10-02 Continental Gin Co Separator
US2024469A (en) * 1934-05-16 1935-12-17 John E Mitchell Automatic feed control apparatus for separating contton from air
US2253698A (en) * 1940-05-21 1941-08-26 Abington Textile Mach Works Apparatus for receiving strippings of cotton and the like
US2639780A (en) * 1950-02-14 1953-05-26 Gordon W Hardy Chaff separator and furnace
US2712858A (en) * 1952-08-19 1955-07-12 Research Corp Apparatus for separating suspended materials from gases
US2720938A (en) * 1952-08-25 1955-10-18 Cates Piner Lynn Louver construction
US2878893A (en) * 1955-10-03 1959-03-24 Walter M Madsen Dust collector
FR1302240A (fr) * 1961-10-02 1962-08-24 Degussa Procédé et dispositif pour la réduction de volume de matières en poudre
FR1369176A (fr) * 1962-09-13 1964-08-07 Textiltechnik M B H Ges Installation pour le dépoussiérage de l'air

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US732969A (en) * 1901-12-26 1903-07-07 Theodore August Brandes Means for equalizing the distribution of cotton in cotton-boxes.
GB395731A (en) * 1931-02-28 1933-07-21 James Lever Rushton Improvements in or relating to apparatus for controlling the supply of cotton or like fibrous material during preparation for spinning
CH178800A (de) * 1933-11-25 1935-08-15 British Cotton Industry Resear Verfahren und Einrichtung zur Herstellung von Bändern aus Fasermaterial, insbesondere aus Baumwolle.
NL85337C (da) * 1952-06-19
DE959982C (de) * 1953-07-31 1957-03-14 Spinnereimaschb Karl Marx Stad Vorrichtung zum Mischen von Fasergut
DE1175583B (de) * 1959-06-01 1964-08-06 Rieter Ag Maschf Anlage zur Speisung einer Kardengruppe mit pneumatischem Foerdersystem
CH379348A (de) * 1959-11-20 1964-06-30 Rieter Ag Maschf Faserflocken-Ablagerungsschacht, z. B. für Spinnereimaschinen
FR80835E (fr) * 1961-12-20 1963-06-21 Rieter Ag Maschf Carderie automatique
FR1398603A (fr) * 1964-06-15 1965-05-07 Glen Raven Cotton Mills Régulateur d'alimentation pour fibres textiles

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1855381A (en) * 1925-11-20 1932-04-26 Hudson H Bubar Separator system
US1720702A (en) * 1928-05-04 1929-07-16 Streun John Arnold Cotton separator
US1975335A (en) * 1931-07-06 1934-10-02 Continental Gin Co Separator
US2024469A (en) * 1934-05-16 1935-12-17 John E Mitchell Automatic feed control apparatus for separating contton from air
US2253698A (en) * 1940-05-21 1941-08-26 Abington Textile Mach Works Apparatus for receiving strippings of cotton and the like
US2639780A (en) * 1950-02-14 1953-05-26 Gordon W Hardy Chaff separator and furnace
US2712858A (en) * 1952-08-19 1955-07-12 Research Corp Apparatus for separating suspended materials from gases
US2720938A (en) * 1952-08-25 1955-10-18 Cates Piner Lynn Louver construction
US2878893A (en) * 1955-10-03 1959-03-24 Walter M Madsen Dust collector
FR1302240A (fr) * 1961-10-02 1962-08-24 Degussa Procédé et dispositif pour la réduction de volume de matières en poudre
FR1369176A (fr) * 1962-09-13 1964-08-07 Textiltechnik M B H Ges Installation pour le dépoussiérage de l'air

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809440A (en) * 1971-10-28 1974-05-07 Truetzschler & Co Shaft for depositing fibre flock
JPS5182189U (da) * 1974-12-20 1976-07-01
US4176988A (en) * 1977-07-18 1979-12-04 Rieter Machine Works Ltd. Apparatus for separating opened fibre flocks from a transporting air stream
US5337455A (en) * 1989-02-17 1994-08-16 Hergeth Hollingsworth Gmbh Device and method for pneumatically feeding a feeding chute

Also Published As

Publication number Publication date
ES124800U (es) 1967-02-01
DE1510368C2 (de) 1982-06-03
BE692905A (da) 1967-07-03
DE1286436B (de) 1969-01-02
DE1946638U (de) 1966-09-22
DE1510368A1 (de) 1970-08-06
NL147487B (nl) 1975-10-15
NL6612818A (da) 1967-10-06
ES334962A1 (es) 1968-03-01
BE696655A (da) 1967-10-05
ES332084A1 (es) 1967-07-16
CH437063A (de) 1967-05-31
DE1957236U (de) 1967-03-16
GB1133883A (en) 1968-11-20
ES124800Y (es) 1967-06-16
AT272159B (de) 1969-06-25

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