US3607399A - Method and apparatus for cleaning screen drums in textile machines - Google Patents

Method and apparatus for cleaning screen drums in textile machines Download PDF

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Publication number
US3607399A
US3607399A US782323A US3607399DA US3607399A US 3607399 A US3607399 A US 3607399A US 782323 A US782323 A US 782323A US 3607399D A US3607399D A US 3607399DA US 3607399 A US3607399 A US 3607399A
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United States
Prior art keywords
screen
roll
set forth
screen drum
combination
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Expired - Lifetime
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US782323A
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English (en)
Inventor
Daniel Hanselmann
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above

Definitions

  • This invention relates to a method and apparatus for cleaning screen drums in textile machines. More particularly, this invention relates to a method and apparatus for cleaning the interiors of rotating screen drums in spinning equipment for opening, cleaning, transporting, blending and similar operations of textile fibers.
  • fiber material is delivered in flock form from suitable opening equipment and is conveyed, for example, by means of a pneumatic transporting system using a carrier air stream and deposited into a feed or reserve chute of a cleaning machine.
  • a rotating screen drum is arranged above the chute. The screen drum permits the air stream to pass through the screen perforations while the fiber materials are caught up on the outer surface of the screen drum and thereafter deposited in the chute.
  • a rotating screen drum is arranged at the lower end of the feed chute in order to separate the fiber materials out of the carrier air stream.
  • screen drums are used to separate fiber flocks from a carrier air stream for depositing of the separated fiber flocks on a transporting belt. These flocks can also be carried towards the screen drum by means of a transporting belt from which the flocks drop onto the outer surface of the rotating screen drum and are evenly distributed thereover. It is generally known that depositing fiber material on the outer surface of a rotating screen drum quickly results in clogging of the perforations of the screen if there is a drop in pressure from the atmosphere outside the screen drum towards the inside. For example, the individual fibers which penetrate into the screen perforations under the pressure or the suction of an air stream preferentially tend to lap around the bridge or wire between two adjacent perforations or to otherwise stick to the inner drum surface causing the accumulation of further fibers. So-called beards are thus quickly formed, clogging up the perforations of the screen whereby the effective screen surface is progressively reduced and after some time completely loses its effectiveness.
  • the invention provides a method for cleaning a rotating screen drum as used in spinning equipment for opening, cleaning, transporting or blending of textile fibers and similar operations.
  • the method includes the steps of removing any fiber material clinging to the inside surface of the screen drum by a rolling force i.e. by a friction force, for example, as developed by at least one rotating body disposed in sliding engagement with the inside surface of the screen drum, of carrying the removed fiber material to the free inside space of the screen drum, and of eliminating the fiber material from the free inside space of the screen drum by means of an exhaust stream of air.
  • the exhaust stream of air can be generated from a carrier airstream of a pneumatic transporting system which is used to transport the fiber material initially to the outside surface of the rotating screen drum. Thereafter, as the carrier airstream passes through the perforations of the screen drum, the airstream can be exhausted from the inside of the screen drum with the removed fiber entrained therein.
  • the cleaning apparatus of the invention utilizes at least one rotatable body such as a cleaning roll or ball which is freely mounted within the interior of a rotating screen drum for dislodging accumulated fiber materials projecting through the perforations of the screen.
  • the rotatable body can also be driven by a driving means constituted by a like body such as a drive roll or ball so as to rotate while the screen drum also rotates.
  • the apparatus also includes means for eliminating the dislodged fiber material from the inside of the screen drum.
  • FIG. 1 illustrates a side view of a screen drum incorporating a cleaning apparatus having a cleaning roll and a drive roll according to the invention
  • FIG. 2 illustrates a view taken on line II-Il of FIG. 1;
  • FIG. 3 illustrates a fragmentary view of a screen drum utilizing a cleaning apparatus of the invention having a modified cleaning roll
  • FIG. 4 illustrates an enlarged view of the screen drum, cleaning roll and driving roll of FIG. 1;
  • FIG. 5 illustrates a view similar to FIG. I having a fluted driving roll
  • FIG. 6 illustrates a fragmentary view of a screen drum utilizing a cleaning apparatus of the invention having a plurality of cleaning balls.
  • fiber material 1 is carried by means of a carrier airstream through a feed duct 2 to a rotating screen drum 3 and deposited on the outer surface of the drum screen 5 in which a plurality of perforations 4 are formed leading to the drum interior.
  • the perforations 4 allow the carrier airstream to penetrate into the interior of the screen drum 3 while the fiber material 1 is separated out on the surface of the screen 5.
  • the screen drum 3 which is hollow is rotatably supported at three points by rolls 7 at each end and is provided with a sprocket 9 fixed at one end which is driven by a chain (not shown) of a suitable drive (not shown) at a speed of, for example, 8 to 10 r.p.m.
  • the screen drum 3 also contains a cover 8 which is secured to the end over the sprocket 9 to seal the screen drum at that end.
  • a cleaning apparatus is provided for cleaning the interior surface of the screen drum 3 and includes a cleaning roll 10 and a drive roll 11 freely placed inside the screen drum 3 parallel to the drum axis and in contact with the interior surface of the screen drum 3.
  • the cleaning roll 10 is formed of a hollow cylinder of rubber and has a plurality of projections or fins l3,extending outwardly from the outer surface.
  • Each projection or fin 13 extends at an angle from the outer roll circumference across the entire length of the cleaning roll 10 parallel to the roll axis.
  • the projections or fins 15 can be arranged helically across the entire outside surface of the roll 10.
  • the drive roll 11 is formed of a hollow cylinder of rubber and has a smooth outer surface.
  • the cleaning roll 10 is of less weight than the drive roll 11 and is of larger diameter than the drive roll 11 in order to prevent the formation of fly waste accumulations at the ends of the rolls 10, 1 1.
  • both rolls 10, 11 are situated in the lower part of the screen drum 3 with the axis of each ofiset from the axis of the screen drum 3.
  • members 14 are secured to the ends of the screen drum 3 which are of smaller inside diameter than the screen 5.
  • the members 14 are also slightly tapered towards the inside and have inner rims which are at right angles to the screen 5 so as to form an abutment for the rolls 10, 11.
  • the cleaning roll and drive roll 11 are arranged inside the screen drum 3 with the drive roll 11 to the left of the cleaning roll 10 for a rotation of the screen drum 3 in a counterclockwise direction (as indicated by an arrow in FIG. 4).
  • the fins l3 of the cleaning roll 10 are also inclined in the direction of the'screen drum rotation.
  • the drive roll 11 rotates in the same direction due to the friction of its rubber surface on the interior surface of the screen 5 (as indicated by an arrow in FIG. 4).
  • the drive roll 11 due to its frictional contact with the fins 13 of the cleaning roll 10, drives the cleaning roll 10' in the opposite clockwise direction (as indicated in FIG. 4).
  • a carrier airstream then transports the fiber material 1 via the feed duct 2 to the outer surface of the screen 5 of the rotating screen drum 3.
  • the airstream then flows through the perforations 4 into the interior space of screen drum 3 while the fiber material is deposited on the outer surface of the screen 5.
  • the fins 13 of the rotating cleaning roll 10 remove any tangles that form at the perforations 4 or at other places on the interior surface of the screen 5.
  • the fiber material removed after passing the line of frictional contact between the drive roll 11 and cleaning roll 10 is then carried away from the inside by the carrier airstream which passes through the screen 5 and exits via an exhaust duct (not shown) at the uncovered end of the screen drum 3.
  • the fins 13, 15 of the cleaning roll 10 due to their flexibility, are in contact with the interior screen surface along the full length of the roll 10 and thus ensure a cleaning action at all places along the entire contacting length of the roll 10. It is further noted that due to inertia, the rolls 10, 11 are moved towards the right as viewed in FIG. 1 into a slightly elevated position during rotation of the screen drum 3 and fall back into their lowest position at irregular intervals. This results in an additional cleaning action which improved the overall cleaning effect.
  • the cleaning roll 10 can alternatively be formed as a hollow roll having integral radially directed flutes 16 in the outer surface which extend over the entire length of the roll 10 parallel to the roll axis. These flutes 16 can also be arranged helically or spirally of the roll 10.
  • the advantage of the flutes 16 over the fins 13 is that the position of the rolls 10, 11 can be chosen independently of the direction of rotation of the screen drum 3.
  • rolls 10, 11 may be made solid and may be provided with cores of different material from the material of the surfaces.
  • a plurality of balls l7 can be used.
  • the balls 17 are provided with a rubber surface 18 and are freely mounted in the interior of a screen drum 3 as shown in FIG. 2.
  • the balls 17 are rotated due to their frictional con tact on the interior surface of the screen 5 and thereby clean the interior surface of the screen 5.
  • any tangles or beards which form at the perforations 4 are removed by the rolling friction of the balls 17 and are carried by the balls 17 towards the free inside space of the screen drum 3.
  • the fiber material is then eliminated from this space by the airstream flowing through the screen drum 3.
  • the balls 17, like the rolls l0, 11 may be hollow or may contain a solid core of a material which may differ from the material of the surface.
  • the cleaning apparatus can exhaust the removed fiber material from within the screen drum by an airstream, for example, the carrier airstream which carries the fiber material to the screen drum, under pressure or under vacuum by use of a suitable means.
  • an airstream for example, the carrier airstream which carries the fiber material to the screen drum, under pressure or under vacuum by use of a suitable means.
  • a cleaning apparatus comprising at least one rotatable body placed on the interior surface of said screen and in sliding engagement with said interior surface,
  • driving means for driving said body during rotation of said screen drum to remove fiber material from said interior surface of said screen
  • said driving means is a smooth surfaced drive roll disposed parallel to and in frictional contact with said cleaning roll.
  • a cleaning apparatus comprising at least one rotatable body loosely placed on the interior surface of said screen and in sliding engagement with said interior surface,
  • a driving means arranged within said screen drum in frictional contact with said body for driving said body during rotation of said screen drum to remove fiber material from said interior surface of said screen
  • a method for cleaning a rotating textile screen drum having a perforated screen for passage of a fiber carrier airstream therethrough from the outside of the drum to the inside comprising the steps of rotating at least one body on the inside surface of the screen to remove fiber material on the inside surface of the screen under a slidable frictional force developed by said rotating body on the inside surface of the screen,

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Treatment Of Fiber Materials (AREA)
US782323A 1967-12-13 1968-12-09 Method and apparatus for cleaning screen drums in textile machines Expired - Lifetime US3607399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1750567A CH459017A (de) 1967-12-13 1967-12-13 Verfahren zum Reinigen einer Siebtrommel und Vorrichtung zur Durchführung des Verfahrens

Publications (1)

Publication Number Publication Date
US3607399A true US3607399A (en) 1971-09-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
US782323A Expired - Lifetime US3607399A (en) 1967-12-13 1968-12-09 Method and apparatus for cleaning screen drums in textile machines

Country Status (5)

Country Link
US (1) US3607399A (de)
CH (1) CH459017A (de)
DE (2) DE1814330C3 (de)
FR (1) FR1594486A (de)
GB (1) GB1253069A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4895602A (en) * 1987-08-01 1990-01-23 Shizuo Sagawa Pipe cleaning method
US10227240B2 (en) 2015-10-30 2019-03-12 Edward Beverly Moe Water reclamation system and method
CN109989135A (zh) * 2019-04-03 2019-07-09 应辉辉 一种纺织品生产用清棉装置
CN110788092A (zh) * 2019-11-13 2020-02-14 台州椒江中含乐器科技有限公司 一种双节洞箫的内壁清理装置
CN112495038A (zh) * 2020-11-10 2021-03-16 天长市大发化纤有限公司 一种带固液分离机构的涤纶短纤维生产线用固体废料清理机构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI832074A (fi) * 1983-06-09 1984-12-10 Yhtyneet Paperitehtaat Oy Stoedfoerfarande foer siktroer.
CH709311A2 (de) * 2014-02-27 2015-08-28 Rieter Ag Maschf Vorrichtung zur Bildung eines Faservlieses aus Faserpaketen.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US445534A (en) * 1891-02-03 Barrel-washer
US1312291A (en) * 1919-08-05 wicker
US2229391A (en) * 1938-07-06 1941-01-21 John C Rogers Method of and apparatus for treating cottonseed lint
US2940133A (en) * 1950-04-14 1960-06-14 Weyerhaeuser Co Continuous deposition of dry felted structures
US3314840A (en) * 1961-08-01 1967-04-18 Celanese Corp Process and apparatus for producing a non-woven fabric

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US445534A (en) * 1891-02-03 Barrel-washer
US1312291A (en) * 1919-08-05 wicker
US2229391A (en) * 1938-07-06 1941-01-21 John C Rogers Method of and apparatus for treating cottonseed lint
US2940133A (en) * 1950-04-14 1960-06-14 Weyerhaeuser Co Continuous deposition of dry felted structures
US3314840A (en) * 1961-08-01 1967-04-18 Celanese Corp Process and apparatus for producing a non-woven fabric

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4895602A (en) * 1987-08-01 1990-01-23 Shizuo Sagawa Pipe cleaning method
US10227240B2 (en) 2015-10-30 2019-03-12 Edward Beverly Moe Water reclamation system and method
CN109989135A (zh) * 2019-04-03 2019-07-09 应辉辉 一种纺织品生产用清棉装置
CN109989135B (zh) * 2019-04-03 2021-07-30 应辉辉 一种纺织品生产用清棉装置
CN110788092A (zh) * 2019-11-13 2020-02-14 台州椒江中含乐器科技有限公司 一种双节洞箫的内壁清理装置
CN112495038A (zh) * 2020-11-10 2021-03-16 天长市大发化纤有限公司 一种带固液分离机构的涤纶短纤维生产线用固体废料清理机构

Also Published As

Publication number Publication date
DE1814330C3 (de) 1979-01-25
FR1594486A (de) 1970-06-01
GB1253069A (de) 1971-11-10
DE6811132U (de) 1969-04-17
CH459017A (de) 1968-06-30
DE1814330A1 (de) 1969-07-24
DE1814330B2 (de) 1978-06-01

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