US3562867A - Apparatus for mixing slivers - Google Patents

Apparatus for mixing slivers Download PDF

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Publication number
US3562867A
US3562867A US749748A US3562867DA US3562867A US 3562867 A US3562867 A US 3562867A US 749748 A US749748 A US 749748A US 3562867D A US3562867D A US 3562867DA US 3562867 A US3562867 A US 3562867A
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US
United States
Prior art keywords
slivers
mixing
per meter
sliver
weight per
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
US749748A
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English (en)
Inventor
Johann Kaiser
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.)
CHR MANN MASCHINENFABRIK
Original Assignee
CHR MANN MASCHINENFABRIK
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Filing date
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Application filed by CHR MANN MASCHINENFABRIK filed Critical CHR MANN MASCHINENFABRIK
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Publication of US3562867A publication Critical patent/US3562867A/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
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/005—Arrangements for feeding or conveying the slivers to the drafting machine

Definitions

  • ABSTRACT OF THE DISCLOSURE A method of and mixing frame for mixing slivers which do not require a reduction in the sliver weight per meter with slivers which require a reduction in the sliver weight per meter, according to which the slivers not requiring a reduction in the sliver weight per meter are fed directly into the mixing frame while the slivers requiring a reduction in the sliver weight per meter are adjacent the mixing frame predrafted and at the end of the predrafting operation are without interruption directly fed to entering rollers which feed the thus predrafted slivers into the mixing frame into which the other slivers not requiring a reduction in the sliver weight per meter are being fed.
  • the present invention relates to a method of and apparatus for mixing slivers.
  • Mixed slivers composed of a plurality of individual slivers of different color and/or fiber type are produced on mixing frames.
  • it is desired to produce the mixed sliver from a large number of individual slivers.
  • mixing gill boxes were employed in which the slivers being delivered by the individual heads were combined, then reduced in an additional drawing head and finally deposited in a discharge can.
  • an object of the present invention to produce a method of and apparatus for mixing slivers of different colors and/or qualities on a mixing frame, in which the costs, especially for labor, will be greatly reduced.
  • FIG. 1 diagrammatically illustrates a top view of a mixing frame as used in connection with the present invention.
  • FIG. 2 illustrates a top view of a drafting device on a larger scale than that of FIG. 1.
  • FIG. 3 is a section through the drafting device of FIG. 2.
  • FIG. 4 illustrates on an enlarged scale a portion of the mixing frame according to FIG. 1 with entering rollers arranged transverse to the mixing frame.
  • the method according to the present invention is characterized primarily in that at least a portion of the incoming slivers is prior to passing over the drafting field proper, but during the same working operation, predrafted for the required sliver weight (grams per meter) necessary for the desired mixture.
  • the slivers which do not require a reduction in the sliver weight are as heretofore customary passed from the spinning cans to the head of the drawing frame, whereas the slivers which require a reduction in the weight per meter are predrafted ahead of the drafting field proper.
  • pre-passages which according to the prior art are employed ahead of the mixing frame proper, will become superfluous.
  • a mixing frame for carrying out the method according to the invention may be characterized in that at least one portion of the entering rollers which withdraw the slivers is directly preceded by a predrafting device.
  • the drive shafts which drive the driving rollers and the predrafting drive may be arranged parallel or tranverse to the entering-in direction.
  • the mixing frame comprises primarily the drafting frame head 1 arranged at one end of the drawing frame.
  • the mixing frame furthermore comprises a sliver depositing device 2 which, when looking in the sliver feeding direction, is located behind the drawing frame head 1.
  • the mixing frame also comprises a feed table 3 arranged ahead of the drafting frame head 1. At both longitudinal sides of said table 3 there are arranged a plurality of spinning cans 4.
  • drafting frame head 1 there may be employed various heretofore known designs. Thus, a double gill box may be employed, or a hackling field or a suitable apron or a roller drafting mechanism.
  • the feed rollers 7 which are connected to the feed shaft 6 along the feed table 3, the slivers are withdrawn from the spinning cans 4 as far as the slivers do not have to be reduced as to their weight per meter.
  • the slivers 10 are thus lifted directly by the feed rollers 7 out of the spinning cans 4 and are via deviating pins 12 conveyed to the drafting field of the drafting head 1.
  • the slivers 10, however, which in order to obtain the desired fiber mixture will have to be reduced as to their weight per meter are, prior to reaching the feed roller 7 predrawn in predrafting devices shown in FIG. 2, in other words are reduced in weight per meter.
  • Each predrafting device comprises the predrafting transmission 8.
  • the predrafting device furthermore comprises a roller 9 driven by the transmission 8 at variable speeds, and the fiber guiding rollers )11 likewise driven by said transmission.
  • the predrafting device according to FIG. 2 has for each two slivers to be drafted one feed roller 7' only, said roller 7 being driven directly by the feed shaft 6 at constant speed.
  • the drafting or entering roller 9 rotates at a lower speed depending on the desired predrafting so that between the feed roller 7 and the drafting roller 9 there will be obtained the desired predraft.
  • the predrafting transmission 8 may be designed as a gear transmission.
  • an infinitely variable control transmission with precisely adjustable scales is employed so that in a simple manner the draft of each predrafting transmission can be adjusted and controlled by means of a scale.
  • the predrafting device according to FIG. 2 may also be replaced by another drawing frame. Also in this instance, a pure roller drafting mechanism may be employed, but also a simple or double apron drafting mechanism may be used.
  • the fiber guiding roller 11 may, in conformity with FIG. 3, be designed as orcupine roller or also as a fine hackling field.
  • the load of the feed roller 7' and the drafting roller 9 for a slip-free movement of the sliver to be reduced is in conformity with FIG. 3 effected by means of a loading saddle 13 the rollers 14 and 15 of which press against the rollers 7' and 9.
  • the arrangement of the feed rollers 7, 7' may, depending on the design of the feed table, be selected according to FIG. 1 in the longitudinal feeding direction or may, according to FIG. 4, be selected in a direction transverse to the feeding direction.
  • the individual predrafting transmissions may also be designed as control transmissions so that they will have not only the function of weight reducing but also of controlling the individual sliver. This last mentioned function is of particular importance when the slivers come directly from the dyer and due to the dyeing and drying processes have relatively great variations in the weight of the sliver.
  • 12 slivers are being fed to the mixing frame and, more specifically, five slivers are withdrawn without drafting from the feed rollers with 20 g./m. (grams per meter), and the remaining seven slivers must be reduced in weight.
  • a sliver is necessary with a weight of g./m. of the color B
  • a sliver is necessary with the Weight of 16.8 g./m.
  • the color C two slivers each having a Weight of 17.5 g./m. are necessary
  • finally of the color E two slivers each with a weight of 12.4 g./m. are required.
  • a mixing frame for producing a mixed sliver from a plurality of individual slivers comprising a drafting frame head for receiving and combining a plurality of individual spaced parallel slivers, a drawing frame including a feed table having a plurality of individual guide means, each guiding an individual sliver to said drafting frame, and feed roller means mounted on said feed table having a uniform speed for feeding said spaced, parallel individual slivers to said drafting frame at a uniform speed, and predrafting means for each of certain of said individual slivers preceding said feed roller means, each said predrafting means comprising entering rollers engaging one of said slivers, so that said predrafting means restricts the movement of each said sliver to said feed roller means to reduce the weight per meter of said s iver, and variable transmission means, each driving one of each entering rollers and controlling the operation of each predrafting means and the individual weight reduction of each sliver.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US749748A 1967-08-08 1968-08-02 Apparatus for mixing slivers Expired - Lifetime US3562867A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19671685572 DE1685572B2 (de) 1967-08-08 1967-08-08 Verfahren und vorrichtung zum mischen von faserbaendern
DEM0075078 1967-08-08

Publications (1)

Publication Number Publication Date
US3562867A true US3562867A (en) 1971-02-16

Family

ID=25754518

Family Applications (1)

Application Number Title Priority Date Filing Date
US749748A Expired - Lifetime US3562867A (en) 1967-08-08 1968-08-02 Apparatus for mixing slivers

Country Status (6)

Country Link
US (1) US3562867A (OSRAM)
BE (1) BE719198A (OSRAM)
CH (1) CH467881A (OSRAM)
DE (1) DE1685572B2 (OSRAM)
FR (1) FR1583534A (OSRAM)
GB (1) GB1185423A (OSRAM)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443913A (en) * 1980-07-25 1984-04-24 Glp Industrial Property Bureau Creel
US5023976A (en) * 1988-11-03 1991-06-18 Maschinenfabrik Rieter Ag Feed table of a drawframe arrangement
US5299343A (en) * 1991-11-12 1994-04-05 Howa Machinery, Ltd. Creel device for a machine for handling slivers
US11286585B2 (en) * 2017-02-09 2022-03-29 Trützschler Group SE Method and apparatus for processing fibers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113512783B (zh) * 2021-05-07 2023-01-24 河南昊昌精梳机械股份有限公司 一种棉纺条并卷联合机及其防缠绕棉条喂入装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443913A (en) * 1980-07-25 1984-04-24 Glp Industrial Property Bureau Creel
US5023976A (en) * 1988-11-03 1991-06-18 Maschinenfabrik Rieter Ag Feed table of a drawframe arrangement
US5299343A (en) * 1991-11-12 1994-04-05 Howa Machinery, Ltd. Creel device for a machine for handling slivers
US11286585B2 (en) * 2017-02-09 2022-03-29 Trützschler Group SE Method and apparatus for processing fibers

Also Published As

Publication number Publication date
DE1685572B2 (de) 1973-08-16
BE719198A (OSRAM) 1969-01-16
FR1583534A (OSRAM) 1969-11-07
DE1685572A1 (de) 1972-03-09
GB1185423A (en) 1970-03-25
CH467881A (de) 1969-01-31

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