US2180325A - Drawing frame for textile fibers - Google Patents

Drawing frame for textile fibers Download PDF

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Publication number
US2180325A
US2180325A US62250A US6225036A US2180325A US 2180325 A US2180325 A US 2180325A US 62250 A US62250 A US 62250A US 6225036 A US6225036 A US 6225036A US 2180325 A US2180325 A US 2180325A
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United States
Prior art keywords
roller
band
weight
clearer
tensioning
Prior art date
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Expired - Lifetime
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US62250A
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English (en)
Inventor
Toenniessen Ernst
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Individual
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Individual
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Publication date
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Publication of US2180325A publication Critical patent/US2180325A/en
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    • 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
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons

Definitions

  • the invention relates to drawing frames as employed in spinning frames for textile fibers, of
  • tensioning means For a band in such apparatus it has been proposed to employ as tensioning means a roller having teeth thereon, but fiy and fiber are apt to get upon such teeth and thus brake and displace the band.
  • Rotatable pulleys having plane surfaces have also been proposed.
  • the swinging we ght has side plates acting as guides. such plates swinging with the weight. Therefore, safe and continuous working is assured and the tension ng means adapts itse f to any change in the parts of the apparatus. automatically. They may be smaller and of lighter construction than a tensioning-roller, as a result of'its braking effect, and the space required is therefore smaller.
  • the rear clearer roller of the apparatus may be so disposed that it presses againstthe back roller to clear tliesame whilst it also clears the band. At the same time the clearer roller may press so tightly against the middle roller that breakage of the roving is prevented on removal or unweighting of the middle roller.
  • the clearer roller and tensioning means can so co-operate and be so assembled that on y on removal of the former can the latter be removed.
  • the band as will be hereinafter seen can be easily adjusted to the narrowest or widest space between the nip of the usual front rollers and the delivery from the band.
  • the invention further contemplates a special form of guide rail for the band as fully described hereinafter.
  • FIG. 1 is a view of the roller stand, with band, rollers, and accessories; and Figure 2 illustrates the principle.
  • the bottom rollers I, 3, and 4 and the guide rail 19 2 are borne in the stand l5. It will be under stood that both sides of the -stand are adequately arranged to take the roller and other bearings; and that seen in the illustration will be referred to. Rollers 3 and 4 are borne in the side block 15 I6 movable in the. stand l5 so that the distance between rollers l and 3 may be altered'at will.
  • the top rollers 5, 1 and 8 run as usual on the bottom rollers and the idle presser roler 6 is loosely mounted over the rail 2.
  • the small band 20 9 which may be of leather runs over the middle roller 3 and aroundthe guide and supporting rail 2, and around a tensioning weight I I.
  • the weight II is a solid unit with the riveted or cast on side plates l0 and the whole is suspended upon 25 a bearer rod l2 secured in the roller stand l5; As shown in Figs. 1 and 2, it will be seen that the plates I II, are of an area so as to provide fixed flanges which extend beyond the peripheral surface of the weight, and thus more effectively 30 guide the belt, as distinguished from the customary flanges on rotating pulleys, and the like.
  • the guide and supporting rail 2 in the example shown is of symmetrical'triangular. cross section, and an advantage of thisformis that on wear taking place such rail may be turned to present a new bearing surface for the band 9, thus avoiding 55 another.
  • the presser roller 6 has a high pressing effect to cause the band 9 to lie substantially on the whole face of one side of the rail.
  • the distance between band 9 and the front roller nip is thus lessened.
  • the top rollers 5, I, and 8 are weighted in known manner from a weight hook l8 transmittedthrough the saddle I! to the three rollers. Positive weighting may however be ap plied to the rollers and I only, the back roller 8 being self-weighted.
  • the operative cannot disengage the tensioning weight unless she has first removed the roller l3.
  • a further great improvement as compared with known designs is that the band 9 can never be engaged by the front roller nip. Both in the narrowest and the widest position of the drafting apparatus the clearer roller equalises or balances the free length of the band.
  • the inventive idea underlying the present improvements' is that the distance between the front roller nip and the preceding nip must be as short as possible.
  • the relative positions of the presser roller. 6 and the guide rail 2, and the shape of the latter, permit that the said roller sinks into the band 9. There is thus produced the minimum distance desired.
  • roller apparatus having front, middle and back roller pairs for the drafting of textile fibrous material, an endless band passing through the middle roller pair nip, a non-rotatable tensioning weight within the loop of the endless band, such weight being pivotally borne and having tensioning movement only in the direction of the band length, lateral band-controlling flanges upon such weight with either of which flanges the adjacent end of the band may make frictional running contact, and a guide and supporting rail serving with the weight to support the endless band in ad- 6 justed position.
  • roller apparatus having front, middle and back roller pairs for the drafting of textile fibrous material, an endless band passing through the middle roller pair nip, a non-rotatable tensioning weight within the loop of the endless band, such weight being pivotally borne and having tensioning movement only in the direction of the band length, lateral band-controlling flanges upon such weight with either of which flanges the adjacent edge of the band may make frictional running contact, a guide and supporting rail serving with the weight to support the endless band in adjusted position, and a spring-controlled clearer roller serving to press part of the endless band against the lower middle roller, the peripheral speeds of the lower middle roller and the clearer roller being thus substantially equal, such clearer roller also making clearing contact with the lower back roller.
  • roller apparatus having front, middle, and back roller pairs for the drafting of textile fibrous material, an endless band passing through the middle roller pair nip, tensioning means within the loop ofsuch band, a guide and supporting rail for the latter, pivoted spring members, roller shaft bearings fitted therein, a clearer roller mounted in such bearings and in clearing contact with the lower back roller whilst the clearer roller, part of the endless band, and the lower middle roller are pressed tightly together by the pressure of the spring members.
  • roller apparatus having front, middle, and back roller pairs for the drafting of textile fibrous material, an endless band passing through the middle roller pair nip, a non-rotatable tensioning weight within the loop of the endless band, such weight being pivotally borne and being movable only in the direction of the length of the band, lateral band-controlling members upon the weight, a guide and supporting rail for the endless band, pivoted spring members, roller shaft bearings fitted thereon, a clearer roller mounted in such bearings and in clearing contact with the lower back roller, the spring pressure serving to press the clearer roller, part of the endless band,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US62250A 1935-09-04 1936-02-04 Drawing frame for textile fibers Expired - Lifetime US2180325A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2180325X 1935-09-04

Publications (1)

Publication Number Publication Date
US2180325A true US2180325A (en) 1939-11-14

Family

ID=7988850

Family Applications (1)

Application Number Title Priority Date Filing Date
US62250A Expired - Lifetime US2180325A (en) 1935-09-04 1936-02-04 Drawing frame for textile fibers

Country Status (2)

Country Link
US (1) US2180325A (enrdf_load_stackoverflow)
FR (1) FR800558A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610362A (en) * 1948-11-17 1952-09-16 Collins & Aikman Corp Rotary roll clearer for draft frames
US2734232A (en) * 1956-02-14 bodell
US2787811A (en) * 1952-07-12 1957-04-09 Deering Milliken Res Corp Clearer for textile machines
US3028636A (en) * 1955-12-02 1962-04-10 Rieter Joh Jacob & Cie Ag Cradle for top rolls of double apron drafting arrangements
US4509230A (en) * 1982-07-23 1985-04-09 Rieter Machine Works Ltd. Drafting mechanism for a spinning machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740332C (de) * 1937-01-03 1943-10-18 Rieter Joh Jacob & Cie Ag Riemchenstreckwerk
DE743132C (de) * 1938-06-04 1944-11-16 Rieter Joh Jacob & Cie Ag Riemchenstreckwerk

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734232A (en) * 1956-02-14 bodell
US2610362A (en) * 1948-11-17 1952-09-16 Collins & Aikman Corp Rotary roll clearer for draft frames
US2787811A (en) * 1952-07-12 1957-04-09 Deering Milliken Res Corp Clearer for textile machines
US3028636A (en) * 1955-12-02 1962-04-10 Rieter Joh Jacob & Cie Ag Cradle for top rolls of double apron drafting arrangements
US4509230A (en) * 1982-07-23 1985-04-09 Rieter Machine Works Ltd. Drafting mechanism for a spinning machine

Also Published As

Publication number Publication date
FR800558A (enrdf_load_stackoverflow) 1900-01-01

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