US3368246A - Textile drawing apparatus - Google Patents

Textile drawing apparatus Download PDF

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Publication number
US3368246A
US3368246A US485181A US48518165A US3368246A US 3368246 A US3368246 A US 3368246A US 485181 A US485181 A US 485181A US 48518165 A US48518165 A US 48518165A US 3368246 A US3368246 A US 3368246A
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US
United States
Prior art keywords
rollers
fleece
shaped member
drawing apparatus
roller
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
US485181A
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English (en)
Inventor
Bonalumi Ettore
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.)
ING MISITANO AG
MISITANO A G ING
Original Assignee
MISITANO A G ING
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 MISITANO A G ING filed Critical MISITANO A G ING
Application granted granted Critical
Publication of US3368246A publication Critical patent/US3368246A/en
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
    • 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
    • D01G15/64—Drafting or twisting apparatus associated with doffing arrangements or with web-dividing apparatus
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only

Definitions

  • ABSTRACT OF THE DISCLOSURE A textile drawing apparatus for high production carding machines, which apparatus is intended for drafting a fleece discharged at high output speeds by such a carding machine, comprising, in combination, sets of cooperating upper and lower rollers, urged together by spring means, one of the said lower rollers being mounted in a U-shaped member pivoted to the support structure of the drawing apparatus, so that the distance between the sets of cooperating rollers may be adjusted in order to adapt the apparatus to the length of the fibers to be drafted.
  • the apparatus according to this invention is intended particularly for drawing a fleece discharged from a carding machine of modern design and high output, for example, 20 kilograms and more per hour.
  • the dofler of the carding machine has to run at a very high speed to discharge a relatively thin fleece.
  • the said fleece is subject to relatively high partial drafts, that may be uncontrolled, between the dolfer and the calendering apparatus that forms a sliver of the required hank number.
  • the dofling comb is compelled to vibrate at excessively high speeds of l800-2000 strokes per minute and more, which speeds are difiicult to maintain.
  • the present invention provides a textile drawing apparatus particularly for high production carding machines, which apparatus is intended for working a fleece which is discharged from such a carding machine at high output speeds, said apparatus comprising sets of upper and lower pressure rollers, urged together by spring means, and means to adjust the distance between the sets of rollers.
  • FIG. 1 is a schematic representation of the apparatus partly in section showing the arrangement of the rollers, as when processing a fleece having short fibers, the pressure device being omitted for purposes of clarity.
  • FIG. 2 is a schematic representation similar to FIG. 1 showing the apparatus with the rollers adjusted to work a fleece having long fibers;
  • FIG. 3 is a side elevational view of the pressure device of the apparatus, one of the spring elements thereof being shown in cross-section;
  • FIG. 4 is a front elevational view of a clamping means of the pressure device for the upper rollers of the apparatus.
  • FIGS. 5 and 6 are, respectively, front and side views of a U-shaped member for pivotally mounting one of the lower rollers which adapts the apparatus so that it can be used to process fleeces having long or short fibers.
  • the apparatus comprises substantially three driven lower drawing rollers 11, 12 and 13 and two upper drawing rollers 15, 16, the latter rollers being mounted as idlers and being spring urged by means of a pressure device illustrated in FIGS. 3 and 4 so that the upper roller 15 presses against the lower rollers 11 and 12 and the upper roller 16 presses upon the lower roller 13.
  • a transmission gearing (not represented) is provided to rotate the rollers 11, 12 and 13 in the direction of the arrows, whereby the speed of the roller 13 may be modified in order to vary the draft of the fleece V.
  • a U-shaped member 17 is provided having two upright arms 17A and 17B which are arranged outside the support structure SB of the apparatus.
  • the arms 17A and 17B are rigidly connected with one another by a horizontal rod 17C mounted to turn in two supports 18 and 19 connected to the lower frame SA of the support structure by means of two screws 21 and 23. Therefore, the U-shaped member may be swung according to the direction of the arrows PA or PE and may be locked in the required position by tightening a bolt 24 cooperating in a manner known per se with an arc shaped slot 25 formed in the arm 17A.
  • a similar locking device may be provided in the opposite arm 17B of the U-shaped member.
  • each arm 17A, 17B is formed with an axial projection 26A, 26B, each having a recess 27A, 27B housing a ball bearing C that supports the shaft 13A of the lower roller 13.
  • openings 29 are cut therein, which openings constitute one end stop of the U-shaped member 17. It is necessary to seal the openings to prevent dust infiltrating into the inside of the apparatus, and for this purpose plates 31 are provided, represented in chain dotted lines, and fixed to the projections 26A, 26B so that the openings 29 are sealed in any position of the U-shaped member.
  • FIG. 3 and 4 illustrate the pressure device that permits a pressure to be exerted upon the stationary shafts 15A, 16A of the two upper rollers 15, 16 for applying the necessary draft to the fleece V.
  • This pressure device comprises a fork shaped member 32 having two longitudinal arms 32A in which three pressure devices 34, 35 and 36 are provided in each arm. Only one pressure device 32 has been illustrated in sectional view in FIG. 3.
  • Each device comprises a piston 37 slidably mounted in a cylindrical recess 38 formed in the arm 32A, and
  • the fork-shaped member 32 is pivoted at 4 to the lateral frame SD by means of two pivot pins 42, 43 which permit it to be swung in the direction of the arrows FL and FD, respectively.
  • a lever 45 is pivoted at 47 forming an eccentric pivot 46. The latter cooperates with a U-shaped lever 49 secured to member 32 and pivoted to the lateral frame of the apparatus.
  • a cleaning roller 54 is mounted to engage the peripheries of the rollers 15 and 16.
  • a textile drawing apparatus for working a fleece discharged from a carding machine of high output comprising in combination, a support structure, one first (13) and two other lower rollers (11, 12), a first (16) and a second upper roller (15), elastic means (34, 35, 36) for pressing the said first upper roller (16) against the said first lower roller (13), and the said second upper roller (15) against the two other lower rollers (11, 12), a U-shaped member (17) pivoted (13, 19) to the said support structure and carrying the said first lower roller (13), means (25, 24) for locking in a desired pivoted position the said U-shaped member (17) and consequently the said lower roller (13) so as to vary the distance between the nip of said first upper roller (16) and the said first lower roller (13) and the nip of the said second upper roller (15) and one (12) of the said other lower rollers (11, 12), the said U-shaped member (17) comprising two upright arms (17A, 178) each formed with a hollow projection (26A,

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US485181A 1964-04-10 1965-09-07 Textile drawing apparatus Expired - Lifetime US3368246A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT781364 1964-04-10

Publications (1)

Publication Number Publication Date
US3368246A true US3368246A (en) 1968-02-13

Family

ID=11125378

Family Applications (1)

Application Number Title Priority Date Filing Date
US485181A Expired - Lifetime US3368246A (en) 1964-04-10 1965-09-07 Textile drawing apparatus

Country Status (4)

Country Link
US (1) US3368246A (it)
CH (1) CH406922A (it)
FR (1) FR1437763A (it)
GB (1) GB1170881A (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0775768A1 (en) * 1995-11-27 1997-05-28 F.LLi Marzoli & C. S.p.A. Textile machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890495A (en) * 1957-07-25 1959-06-16 Alsacienne Constr Meca Textile drafting apparatus
US3036345A (en) * 1958-03-12 1962-05-29 Joh Jacob Rieter & Co Swingable supported drafting rolls

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890495A (en) * 1957-07-25 1959-06-16 Alsacienne Constr Meca Textile drafting apparatus
US3036345A (en) * 1958-03-12 1962-05-29 Joh Jacob Rieter & Co Swingable supported drafting rolls

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0775768A1 (en) * 1995-11-27 1997-05-28 F.LLi Marzoli & C. S.p.A. Textile machine
US5839165A (en) * 1995-11-27 1998-11-24 F.Lli Marzoli & C. S.P. A. Textile machine

Also Published As

Publication number Publication date
GB1170881A (en) 1969-11-19
CH406922A (it) 1966-01-31
FR1437763A (fr) 1966-05-06

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