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
  • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
  • D01H5/32—Regulating or varying draft
  • D01H5/36—Regulating or varying draft according to a pre-arranged pattern, e.g. to produce slubs
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
  • D01H1/02—Spinning or twisting machines in which the product is wound-up continuously ring type
• • 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
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
  • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
  • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
  • D02G3/28—Doubled, plied, or cabled threads

Definitions

• a device for the production of assorted or patterned yarn with the addition of different coloured fibres or of different nature is provided.
• the present invention refers to a device to be applied to ring spinning machines for producing assorted or patterned yarns with the addition of different coloured fibres or of different nature.
• a device which permits to spin, through the passages of the ring spinning machine, two roves of equal or different properties, dosing in a controlled way the quantities of each fibre and thus mixing them in order to obtain an assorted and patterned yarn wherein the fibres deriving from a base rove are covered with fibres added of different colour or nature.
• FIG. 1 This patent describes a system, shown in Fig. 1, wherein the drawing field of the spinning machine, normally formed by three shafts and relative pressure rollers are represented by the symbols: • B (supplying shaft) ,
• Each shaft is provided with a respective pressure roller B' , C , M' , F' and respective belts R and R' are wound around shaft M and around relative roller M' .
• pressure rollers are hollow, as shown in figure 2, so that:
• the two roves S and T can then be differently drawn opportunely applying two different speeds to shafts C and B, being output F common to both.
• the present invention solves the abovementioned issue, proposing a solution which does not require the additional cylinder for supplying the coloured rove and keeps the correct size of the drawing field for both roves (base and covering) , in such a way as to permit the complete control of the fibres which form the final yarn formed by base fibres, "covered” by fibres of the coloured rove.
• the invention proposes to realize a device according to claim 1.
• Fig. 4 and 5 respectively a top view and a side view the device according to the invention
• Fig. 7 a perspective view of the entire system.
• Pressure cylinders B' and F' related to shafts B and F are not modified, with respect to the solution shown as prior art, whereas pressure cylinder M' of middle shaft M and relative supporting belt R' are divided, so that the two halves HB and HC can rotate at speeds different the one from the other.
• Middle shaft M is sectioned in various parts as it can be observed in Fig. 6, so that the necessary control is provided to the rollers and conveying belts HB and HC.
• PT toothed wheel or pulley integral with craft MC.
• shaft M acts as common control among all sections MB and relative supporting belts HB, wherein are drawn the roves used as base.
• Shaft M (with relative sections MB and belts HB) receives the command from the machine and carries out the function proper of the middle shaft, thus concurring to the middle drawing of the fibres which constitute the base of the yarn.
• Each section MC is coaxially inserted on shaft M, but does not rotate integral with it, being fixed on bearings or on auto-lubricating bushings BR which make it independent from the shaft itself, which acts in this case as support for said sections.
• each section MC presents a pulley PT which is controlled by a driving belt which in its turn receives the movement from a driving pulley PM positioned on an additional shaft D, which can be arranged in the most suitable positions in such a way as not to be an obstacle or encumber for the working.
• the base rove thus undergoes drawing D1+D2, determined by the speeds of shaft B with respect to sections MB of shaft M, and by the speed of the middle roller and relative supporting belt HB, dragged by sections MB of shaft M with respect to the output speed of shaft F.
• the coloured rove will undergo drawing Dl determined by the speed of the middle roller and relative supporting belt HC dragged by sections MC of shaft M, with respect to the output speed of shaft F.
• a fundamental characteristic of the present invention is therefore that the abovementioned drawing fields, because of the particular configuration of the device, comply with the length requirements in such a way as to permit the complete control of the fibres which form the final yarn formed by the base fibres, "covered” by the fibres of the coloured rove .
• the programmer will thus provide for the releasing of the coloured fibres by operating shaft D for the time necessary for producing the effect of the desired length (provided that it is not lower than the length of the fibres which constitute the coloured rove) , where this time is the one necessary for receiving the number of impulses correspondent to the programmed length. For example, if an effect 25 mm-long is desired, the programmer will operate the shaft till 25 impulses will be reached from the beginning of the effect .
• shaft D Having reached the number of impulses selected, shaft D will be kept still by the same programmer for the time period necessary for producing the yarn without the coloured effect corresponding to the number of impulses which have been set up by the programmer device .
• drawing Dl of the coloured rove is determined by the ratio between the tangential speeds of shaft F and of craft MC which determines the advancement of the fibres of the coloured rove.
• the electronic programmer device determines the speed which must be given to craft MC, during the period in which shaft D is operated, in order to apply the desired drawing Dl to the coloured rove.
• FIG. 7 it is provided, by way of example, an axonometric image of the system which constitutes the present invention of which Fig. 6 is a partial section.
• the present invention therefore permits to obtain a patterned yarn formed by a base rove to which are added the effects (of different colour or nature of the fibres) the dimensions of which (length, thickness and frequency) are programmable by an opportune electronic system.
• Another possible application of the present invention is to operate shafts B and M, which ( supervise according to the present invention the advancement and the formation of the base rove (see figures 4 and 5) , at not constant speed as it happens in the traditional devices commonly known as "flamers" .
• flamers the traditional devices commonly known as "flamers" .
• the effects obtained with the present invention in such a way as to obtain a yarn provided with flames of two colours, being the first the one of the base rove and the other the one realized with the coloured rove which covers the base rove, as explained according to the present invention.
• the electronic control device will provide for opportunely synchronizing the two flaming sequences, in order to obtain the desired aspect, giving the desire weight to the two types of flames (base and colour) which are then created on the yarn produced according to the present principle.
• compactor device V shown in figures 4 and 5 can be traditionally an aspirator or a simple fixed stick or rotating around its longitudinal axis which deviates the path of the continuous fibres in such a way as to bring them in correspondence with the output of the coloured ones so that these ones are collected by the continuous yarn.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Textile Engineering (AREA)
• Spinning Or Twisting Of Yarns (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=42110316

Family Applications (1)

Country Status (5)

Families Citing this family (13)

Citations (2)

Family Cites Families (6)

• 2009
  • 2009-08-12 IT ITTO2009A000634A patent/IT1395278B1/it active
• 2010
  • 2010-07-27 KR KR1020127006207A patent/KR20120046769A/ko not_active Application Discontinuation
  • 2010-07-27 EP EP10793030A patent/EP2464766A2/en not_active Withdrawn
  • 2010-07-27 WO PCT/IB2010/001880 patent/WO2011018685A2/en active Application Filing
  • 2010-07-27 CN CN2010800357540A patent/CN102482806A/zh active Pending

Patent Citations (2)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events