US3840942A - Web control apparatus - Google Patents

Web control apparatus Download PDF

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Publication number
US3840942A
US3840942A US00328267A US32826773A US3840942A US 3840942 A US3840942 A US 3840942A US 00328267 A US00328267 A US 00328267A US 32826773 A US32826773 A US 32826773A US 3840942 A US3840942 A US 3840942A
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US
United States
Prior art keywords
web
guides
delivery
power operated
positioning
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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US00328267A
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English (en)
Inventor
W Thomason
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to US00328267A priority Critical patent/US3840942A/en
Priority to CH90374A priority patent/CH575479A5/xx
Priority to DE2403326A priority patent/DE2403326C2/de
Priority to GB342574A priority patent/GB1425819A/en
Priority to IT48048/74A priority patent/IT1008178B/it
Priority to JP1324574A priority patent/JPS5642691B2/ja
Application granted granted Critical
Publication of US3840942A publication Critical patent/US3840942A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers

Definitions

  • a web control apparatus for a carding machine has a pair of spaced guides, one on each side of the web, with means for positioning said guides in a first predetermined fixed outer position out of confining engagement with the web and in a second predetermined fixed inner position closely adjacent web delivery means condensing the web in a substantially T-shaped configuration for delivery to calender rolls, and power operated means moving the guides from the first position to the second position, so that fibers of a moving web may be condensed into a cohesive strand for delivery to the calender rolls.
  • This invention relates to apparatus for condensing a moving web disposed between the web delivery means and the calendar rolls of a carding machine wherein spaced guides are moved from a predetermined position out of condensing engagement with a moving web to a predetermined position for condensing the web by power operated means.
  • U.S. Letters Pat. No. 2,326,331 discloses manually adjustable guides acting on the selvages to guide a web of woolen fibers from a crushing machine to calender rolls preparatory to being applied to a succeeding carding machine.
  • a variation of the conventional trumpet as applied with special calender rolls is illustrated in U.S. Letters Pat. No. 3,304,583.
  • the disclosures of the foregoing patents contemplate leaving the web .in substantially open width with the resulting susceptability to the adverse affects of air currents.
  • Other web condensing devices contemplate relatively complex arrangements of driven belts for condensing the web closely adjacent the web delivery.
  • the guides are move'able.
  • the guides are in an outer position, preferaby entirely out of contact with the web, when the card is stopped or when an end is down. With the guides in a predetermined outer position the end can be put up in the normal way. Also, the web can be examined for various characteristics of appearance and content.
  • the web guides are brought to a predetermined inner position in contact with the web by power operated means either actuated manually or automatically responsive t0.the stop motion and may be returned to outer position in a similar way.
  • the power operated means automatically fixes the guides in one or the other predetermined position.
  • Use of the invention results in reduced ends down and improved evenness of the resultant strand as a result of improved fiber control. There is less possibility of distortion of the web from air currents.
  • FIG. ,1 is a perspective view illustrating schematically a carding machine equipped with web control apparatus constructed in accordance ,with an embodiment of the invention, v
  • FIG. 2 is an enlarged transverse sectional elevation, further illustrating an embodiment of the invention
  • FIG. 3 is an enlarged perspective view, with parts omitted, illustrating an embodiment of the invention.
  • FIG. 4 is a schematic diagram illustrating various pneumatic components. I l
  • the drawings illustrate web control apparatus for a carding machine interposed between web delivery means carried adjacent a doffer for delivering a web of fibers to a pair of calender rolls.
  • a pair of spaced guides A are positioned one on each side of the web.
  • Means B position the guides in a first predetermined fixed position out of. condensing-engagementwith the web, and position the guides in a second predetermined fixed position closely adjacent the web delivery means condensing the web in a substantially T-shaped configuration for delivery to the calender rolls.
  • Power operated means C move the guides from the first position to the second position.
  • Switch means D actuate the power op -v erated means with the web delivery means delivering the web to the calender rolls.
  • the fibers of the web may be condensed into a cohesive strand for delivery to the calender rolls.
  • the power operated means includes a pneumatic cylinder.
  • a stop motion may detect the presence or absence of a strand from the calender rolls and means may be provided positioning the switch means for actuation responsive to said stop motion.
  • a conventional cotton card is illustrated as including a cylinder 10 and doffer 11 carried within side frame members 12 and 13.
  • Suitable web delivery means are illustrated in the form of crush rolls 14 although any other suitable delivery means including a conventional comb may be utilized.
  • the web is delivered to any suitable sliver forming means which may includea standard trumpet 15 and calender rolls 16. The sliver formed thereby may then be delivered as to a coiler head to be deposited in a can.
  • a pair of spaced guides A are positioned one on each side of the web.
  • the spaced guides A are preferably constructed of sheet metal forming a compound curve including a curved upper portion 17 tapering downwardly and inwardly presenting a concave inner surface 18 to the web.
  • the curved surface 18 extends downwardly and inwardly forming a substantially horizontal base 19.
  • the base portion 19 of each of the guides has an opening therein to accommodate a vertically threaded guide rod 20 which receives a nut 21 for positioning the guides as described in greater detail below.
  • the guides are illustrated as being of a specific shape, it should be noted that they may assume a variety of configurations. It appears important, however, that the curved surface presented to the web be of sufficient extent to present a gently curved guiding surface to the web so as not to tear the fragile web while it is being condensed.
  • Means B position the guides in a first predetermined fixed position out of condensing relation with the web W, and position the guides in a second predetermined fixed position closely adjacent the web delivery means condensing the webW in a substantially T-shaped configuration between the doffer guides A and between the guides and the calender rolls substantially as shown in FIG. I.
  • Themeans B include a pair of substantially C- sh'aped brackets 22 and 23 and the piston rods 24 and 25 respectively together with associated parts.
  • Guide mounts 22 and 23 are positioned for controlled sliding movement in a trackway which includes a pair of tracks 26 and 27 which guide the guide mounts 22 and 23 respectively so that upper legs 22a and 23a remain horizontal for presenting the guides A at the proper altitude to the web W.
  • Power operated means C move the guides from the first position illustrated in broken lines in FIG. 3 to a second position as illustrated in solid lines in F168. 1 and 3.
  • Power operated means C includes a pair'of cylinders 28 and 29 respectively.
  • the cylinder 28 has a base 30, while the cylinder 29 has a base 31.
  • the cylinder 28 has a cylinder head 32 similar to its'base 30 while the cylinder 29 has a cylinder head 33 similar to its base .31.
  • the top and bottom casings which form the tracks 26 and 27 FIG.
  • a pair of opposed brackets 37 are fastened to the side frame members 12 and 13 respectively and to respective cylinder bases as by any suitable fastening means such as screws (not shown) passing through holes 38.
  • the switch means D actuates the power operated means while the web is being delivered to the calender rolls.
  • the switch means D is preferably provided in the form of a sensor valve which serves a similar function in the air operated means illustrated to the micro switch of an electrical circuit.
  • the sensor valve is a pneumatic valve capable of performing its function with the other air operated components illustrated.
  • FIG. 1 sliver S after passing through the calender rolls is illustrated as being taken up by the coiler head 39 and delivered into the can 39a.
  • FIG. 4 illustrates a pneumatic diagram wherein a supply'40 supplies compressed air to a suitable four-way valve 41. It will be noted that the four-way valve 41 supplies air to either end of respective cylinders selectively through the lines 42 and 43.
  • a suitable flow control valve 44 is iilustrated as being provided at each end of each cylinder.
  • the sensor valve D may be overridden by the toggle valve 45 which is provided in line therewith.
  • the sensor valve is illustrated schematically as being operated by means of the pivoted counterweighted arm 46 which carries a sliver engaging portion 47.
  • the extended engaging portion rests against the sliver and when tension is placed therein as the sliver is being run between the calender rolls and the coiler head the resulting tension in the sliver causes the arm 46 to be pivoted engaginga lever 48 of the sensing valve B.
  • any suitable sliver actuating means may be provided for actuating the switch D. It is significant that there are no rotating parts required'on the subject device since lint tends to accumulate on such bearing surfaces causing maintenance problems. Any suitable power operated means such as linkage means may be used in lieu of the pneumatic cylinder illustrated. if it is desired to take web. samples the toggle switch 45 may be actuated to override the sensor valve moving the guides A to outer position returning the web to full width. Suction cleaners may be used adjacentthe web delivery of cards equipped according to the invention since the condensed web is capable of resisting the adverse effects of the air currents created thereby.
  • a'carding machine having a web delivery means carried adjacent a doffer and roll means receiving the web therefrom, the improvement comprising a web control apparatus interposed between said web deliv ery means and said roll means including:
  • C. means positioning said guides in a second predetermined fixed positionclosely' adjacent said web delivery means, said roll means pulling the web through the guides condensing said web in a substantially T-shaped configuration;
  • a web control apparatus for a carding machine receiving a web from web delivery means for delivery to sliver forming means comprising:
  • C. means positioning said guides in a first predetermined outer fixed position on said trackway out of condensing engagement with the web;
  • D. means positioning said guides in a second predetermined inner fixed position on said trackway condensing said web in a substantially T-shaped configuration for delivery to the sliver forming means;
  • E. poweroperated means moving said guides from said outer position to said inner second position.
  • said power operated means includes a pneumatic cylinder and piston and wherein said means positioning said guides in a first position and in a second position includes a piston rod.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US00328267A 1973-01-31 1973-01-31 Web control apparatus Expired - Lifetime US3840942A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US00328267A US3840942A (en) 1973-01-31 1973-01-31 Web control apparatus
CH90374A CH575479A5 (it) 1973-01-31 1974-01-23
DE2403326A DE2403326C2 (de) 1973-01-31 1974-01-24 Vorrichtung an einer Karde oder Krempel zum Abnehmen und Zusammenfassen eines aus einem Lieferwerk der Karde oder Krempel austretenden Faserflors
GB342574A GB1425819A (en) 1973-01-31 1974-01-24 Web control apparatus
IT48048/74A IT1008178B (it) 1973-01-31 1974-01-30 Perfezionamento nelle macchine cardatrici
JP1324574A JPS5642691B2 (it) 1973-01-31 1974-01-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00328267A US3840942A (en) 1973-01-31 1973-01-31 Web control apparatus

Publications (1)

Publication Number Publication Date
US3840942A true US3840942A (en) 1974-10-15

Family

ID=23280243

Family Applications (1)

Application Number Title Priority Date Filing Date
US00328267A Expired - Lifetime US3840942A (en) 1973-01-31 1973-01-31 Web control apparatus

Country Status (6)

Country Link
US (1) US3840942A (it)
JP (1) JPS5642691B2 (it)
CH (1) CH575479A5 (it)
DE (1) DE2403326C2 (it)
GB (1) GB1425819A (it)
IT (1) IT1008178B (it)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53139830A (en) * 1977-03-17 1978-12-06 Truetzschler & Co Device for collecting and guiding web in carding machine
US4198730A (en) * 1977-07-15 1980-04-22 Trutzschler Gmbh & Co. Kg Web guiding device
US4232426A (en) * 1977-03-17 1980-11-11 Trutzschler Gmbh & Co. Kg Web guiding device
US5095587A (en) * 1989-08-07 1992-03-17 Trutzschler Gmbh & Co. Kg Method and apparatus for automatically starting formation of sliver from a carded web
US5155879A (en) * 1989-08-07 1992-10-20 Trutzschler Gmbh & Co. Kg Apparatus for automatically starting formation of sliver from a carded web
US5412846A (en) * 1992-10-22 1995-05-09 Rieter Ingolstadt Spinnereimaschinenbau Ag Draw frame fleece hopper including a wear resistant insert

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741095C3 (de) * 1977-03-17 1981-09-17 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung an einer Karde zum Abnehmen und Zusammenfassen eines aus einem Lieferwerk einer Karde austretenden Faserflors
DE2732017C2 (de) * 1977-03-17 1986-06-12 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung an einer Karde zum Abnehmen und Zusammenfassen eines aus einem Lieferwerk einer Karde austretenden Faserflors zu einem Faserband
DE2732016C2 (de) * 1977-03-17 1986-01-30 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung an einer Karde zum Abnehmen und Zusammenfassen eines aus einem Lieferwerk einer Karde austretenden Faserflors zu einem Faserband
EP0704562A1 (de) * 1994-08-30 1996-04-03 Maschinenfabrik Rieter Ag Gleitführung am Querbandabzug
GB2295163B (en) * 1994-10-31 1998-07-29 Truetzschler Gmbh & Co Kg Apparatus and method for guiding a fibre sliver combination at a draw frame
DE19528484A1 (de) * 1995-08-03 1997-02-06 Truetzschler Gmbh & Co Kg Vorrichtung an einer Strecke zur Messung der Stärke eines Faserverbandes
IT1281339B1 (it) 1995-11-27 1998-02-18 Marzoli & C Spa Macchina tessile in cui la posizione del gruppo di stiro e' regolabile rispetto al doffer in modo da uniformare la qualita' del prodotto

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293712A (en) * 1941-04-09 1942-08-25 Nelson S Campbell Condenser
US2326331A (en) * 1942-02-03 1943-08-10 Platt Brothers & Co Ltd Drawing-off arrangement or mechanism for dealing with fleeces intermediate of scribblers or carding engines

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE489688C (de) * 1928-04-12 1930-01-21 Desgenetais Freres Sa Abstellvorrichtung fuer Krempeln
CH223922A (de) * 1941-04-09 1942-10-31 Ig Farbenindustrie Ag Vlies- und Wickelbahnführer.
GB581851A (en) * 1944-05-18 1946-10-28 Platt Brothers & Co Ltd Improvements in drawing-off arrangements or mechanisms for dealing with a fleece intermediate of scribblers or carding engines
US3216063A (en) * 1963-05-06 1965-11-09 Gossett Machine Works Inc Mechanical stop-motion for carding engines
US3304583A (en) * 1963-11-05 1967-02-21 Maremont Corp Web condenser and calender
US3432891A (en) * 1966-11-30 1969-03-18 Maremont Corp Sliver gatherer and conveyor
IT898309A (it) * 1969-03-12 1900-01-01
CH516659A (de) * 1969-12-12 1971-12-15 Rieter Ag Maschf Verfahren zur Bildung eines Faserbandes aus einem in einer Karde erzeugten Faservlies

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293712A (en) * 1941-04-09 1942-08-25 Nelson S Campbell Condenser
US2326331A (en) * 1942-02-03 1943-08-10 Platt Brothers & Co Ltd Drawing-off arrangement or mechanism for dealing with fleeces intermediate of scribblers or carding engines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53139830A (en) * 1977-03-17 1978-12-06 Truetzschler & Co Device for collecting and guiding web in carding machine
US4232426A (en) * 1977-03-17 1980-11-11 Trutzschler Gmbh & Co. Kg Web guiding device
JPS6137365B2 (it) * 1977-03-17 1986-08-23 Truetzschler & Co
US4198730A (en) * 1977-07-15 1980-04-22 Trutzschler Gmbh & Co. Kg Web guiding device
US5095587A (en) * 1989-08-07 1992-03-17 Trutzschler Gmbh & Co. Kg Method and apparatus for automatically starting formation of sliver from a carded web
US5155879A (en) * 1989-08-07 1992-10-20 Trutzschler Gmbh & Co. Kg Apparatus for automatically starting formation of sliver from a carded web
US5412846A (en) * 1992-10-22 1995-05-09 Rieter Ingolstadt Spinnereimaschinenbau Ag Draw frame fleece hopper including a wear resistant insert

Also Published As

Publication number Publication date
CH575479A5 (it) 1976-05-14
DE2403326C2 (de) 1983-10-20
GB1425819A (en) 1976-02-18
JPS5642691B2 (it) 1981-10-06
JPS49102935A (it) 1974-09-28
IT1008178B (it) 1976-11-10
DE2403326A1 (de) 1974-08-01

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