US3063101A

US3063101A - Apparatus for drawing and collecting textile fibres

Info

Publication number: US3063101A
Application number: US291A
Authority: US
Inventors: Andreani Gianfranco
Original assignee: Individual
Current assignee: Individual
Priority date: 1959-02-28
Filing date: 1960-01-04
Publication date: 1962-11-13
Anticipated expiration: 1979-11-13
Also published as: ES254848A1; GB928397A; FR1243728A; CH372575A

Description

APPARATUS FOR DRAWING AND COLLECTING TEXTILE FIBRES Filed Jan. 4, 1960 I G. ANDREANI Nov. 13, 1962 4 Sheets-Sheet 1 INVENTOR.

Nov. 13, 1962 3,063,101

APPARATUS FOR DRAWING AND COLLECTING TEXTILE FIBREs G. ANDREANI 4 Sheets-Sheet 2 Filed Jan. 4, 1960 IN VEN 0R.

Nov. 13, 1962 G. ANDRr-:ANI 3,063,101

APPARATUS FOR DRAWING AND COLLECTING TEXTILE FIBRES Filed Jan. 4, 1960 4 Sheets-Sheet 3 1N VEN TOR.

Nov. 13, 1962 l G. ANDREANI APPARATUS FOR DRAWING AND COLLECTING TEXTILE FIBRES Filed Jan. 4, 1960 4 Sheets-Sheet 4 3,063,101 APPARATUS EGR DRAWING AND COLLECTING TEXTILE FIBRES Gianfranco Andreani, Ing. A. Giambrocono, `Via Durini 4, Bergamo, Italy Filed `lan. 4, 1960, Ser. No. 291 Claims priority, application Italy Feb. 28, 1959 1 Claim. (Cl. 19-243) This invention relates to apparatus for drawing and collecting textile fibres.

As is well known, after the carding process, slivers of textile fibres are rencd by being passed through drawing frames in which the slivers are formed into a web of separated fibres so as to render it possible when the web is re-formed into a refined sliver for the fibres of the re- `ned sliver to move longitudinally with respect to and without interfering with one another. In order to obtain a satisfactorily refined sliver, it has been the practice to perform several successive drawing and re-forming operations on the sliver and such a process necessitates the use of a considerable amount of machinery and labour because after each drawing and re-forming stage the slivers are collected into cans or vessels which are then brought up to subsequent drawing fra-me for the supply of the slivers thereto. A large amount of factory space is thus required for the size of the plant employed and, because of the separate and repeated drawing and reforming operations on the slivers, the efficiency of the plant in relation to its size is very low.

It is an object, therefore, of the present invention to provide an apparatus `of improved efficiency in relation to the size thereof for drawing and collecting textile libres which needs less maintenance and is more compact than has been the case hitherto and requires fewer collecting vessels and a reduced labour force for its operation.

It is a further object to provide an apparatus of the kind set forth whereby an improved yield of refined sliver is obtained with consequent reduction in the wastage of raw material. Another object is to provide an apparatus of the kind set forth in the operation of which the sliver is caused to pass continuously through successive drawing and re-forming stages without, therefore, having to be cut and collected after each of the said stages.

Apparatus for drawing and collecting textile fibres, according to the present invention, comprises a plurality of rows of storage vessels, each vessel being adapted to contain a sliver of textile fibres, a plurality of drawing sections adapted each to receive slivers from at least one row of storage vessels, the drawing sections being adapted to form respective webs of textile libres, a plurality of first combining means adapted to combine the fibres of the respective Webs to form refined slivers, a finishing drawing section for receiving and forming into a further web of fibres the rened slivers, conveying means for transporting the refined slivers from the first combining means to the finishing drawing section, second combining means for combining the fibres of the further web into a finished sliver, and, at least one collecting vessel for receiving and storing the finished sliver.

The invention will now be described, by way of example, with reference to the accompanying diagrammatic drawings, in which:

FIGURE 1 represents a perspective view of an apparatus for the drawing and collecting of textile fibres according to the invention;

FIGURE 2 is a sectional plan view of part of FIG- URE 1;

FIGURE 3 is a fragmentary schematic sectional view taken on the line III- lll of FIGURE 2;

FIGURE 4 is a perspective view of a detail of FIG- URE 3;

FIGURE 5 is a plan view of a sliver collecting device associated with but not Shown in the apparatus of FIG- URE l;

FIGURE 6 is a view similar to FIGURE 2 but illustrating another embodiment of the invention;

FIGURE 7 is a schematic sectional View taken on the line VII-VII of FIGURE 6, or VIIa-VIIa of FIG- URE 2;

FIGURE 8 is a schematic sectional view taken on the line VIII-VIII of FIGURE 6; and

FIGURES 9 and l0 respectively illustrate the calender rollers provided in the embodiment according to the FIGURE 6.

Throughout the drawing the same reference numerals have been utilised to indicate like parts of the apparatus. Referring particularly to FIGURE 1 apparatus for the drawing and collecting of textile fibres includes four drawing sections A, B, C and D of which each section is a1"- ranged to draw several slivers generally indicated by the reference n each from a storage can or vessel m.

The group of slivers n is formed in its associated drawing section into a web N which is collected into the form of a refined sliver o there being produced by the apparatus as many slivers o as there are drawing sections. The

r slivers o are conveyed on an endless conveyor band 1 to a finishing section generally indicated by the reference E in which the slivers o are collected together to form a single sliver q which is conveyed into a collecting vessel as described hereinafter in greater detail.

As is illustrated in FIGURE 3 each of the drawing sections A, B, C and D comprises a plurality of pairs of upper and

lower cylinders

5a and 5b which are, of known form and driven in known manner and arranged to discharge the web N onto a downwardly inclined plane 5c. The fibres of the web N are collected to form the sliver o by being passed through a funnel Se. On the discharge side of the funnel 5e are provided a pair of transversely disposed calender rollers 6a and 6b which are arranged to feed the sliver o into a tubular conduit 9 having inlet and outlet ends 9a and 9b suitably shaped so as to facilitate entry to and exit from the conduit 9 of the sliver 0. As is more clearly illustrated in FIG- URE 4, the tubular conduit 9 associated with each drawing section is secured within a sleeve 11 which is adjustably secured by a knurled handed screw to a further sleeve 12 which is adjustably mounted by means of a screw 14 on a rod 15 secured to the frame of the apparatus. It will be appreciated that the screw 14 provides for movement of the conduit 9 as a whole transversely with respect to the calender rollers 6a and 6b whilst the knurled headed screw associated with the sleeve 11 enables the inclination of the conduit 9 to be adjusted. It follows therefore that the conduit 9 canbe located relative to the calender rollers 6a and 6b of the respective drawing sections A, B, C and D so that the slivers o are disposed at suitably spaced locations on the conveyor band 1 so that they may be conveyed on the band 1 without interfering one with the other.

As illustrated in FIGURE 2 the endless conveyer band 1 is arranged to be driven by a driving roller 2 through

gears

3 and 3a of which the gear 3a is mounted on a shaft driven by an electric motor (not shown). The endless band 1 at a point remote from the driving roller 2 embraces an idler return roller 2a.

As shown in FIGURES 2 and 7, the slivers 0 are con veyed along the band 1 and onto a surface 1a which is downwardly inclined from the inlet of a finishing drawing section E towards the upper run of the band conveyor and provided with guides for directing the slivers 0 into the finishing ldrawing section E which includes upper drawing rollers 55a and co-operating lower rollers 55b. The finishing drawing section E is of known form and accordingly will not be described in further detail save to say that the rollers 55a and 55h serve to draw the slivers o into a web p the fibres of which are combined in a funnel Sq to form a sliver q (see FIGURE 7).

On the discharge side of the funnel Sq there is provided a pair of transversely mounted calender rollers 6g and 6r of known construction by means of which the sliver q is supplied to a downwardly inclined passage 40a of a rotary platform 40 which is arranged to rotate in bearings 41 mounted on the frame 43 of the apparatus. For effecting rotation of the platform 40 there is mounted on the platform 40 and secured thereto by screws a wormwheel 48 which co-operates with a worm gear 50, the latter gear being mounted on a shaft which is driven by an electric motor (not shown) of the apparatus. Subjacent the circle of rotation of the lower end of the conduit 40a is disposed a collecting can or vessel M and it will be appreciated that as the sliver q passes through the conduit 40a, the platform 40 is driven through the

gears

48 and 50 so that the rotation of the platform 40 causes the sliver q to be deposited in and fill the can M in a series of circular layers.

Preferably as will be observed in FIGURE three cans M are provided together with means adapted to cause the cans to be successively filled. To this end, the cans M are mounted at angular intervals of 120 on a platform 130 which is rotatable about a vertical axis indicated by the reference X. For rotating the platform 130 about the vertical axis X there is co-axially secured to that platform a gear wheel 131 which meshes with a further gear 132 to which is co-axially Vsecured a wormwheel 133 which in turn meshes with a worm gear 134. The worm gear 134 is mounted on a shaft to which is keyed a gear wheel 135 which co-operates with a further gear wheel mounted on a driving shaft of an electric motor 137.

It will be apparent, therefore, that as one of the cans M on the platform 130 is filled with the sliver q, the motor 137 can be operated so as to rotate the platform through 120 in which position a further collecting can is disposed for reception of the sliver q beneath the circle of rotation of the discharge end of the passage 40a. A further embodiment of the invention is depicted in FIGURES 6 to 10. As shown in FIGS. 6 and 8 there is provided on the discharge side of each funnel 5e a pair of calender rollers 6c and `tid disposed transversely with respect to the web N of which the lower roller 6d is mounted on a horizontal shaft 10 which is driven by an electric motor (not shown) of the apparatus, whilst the upper roller 6c is rotatably mounted on a horizontal shaft which can be pivoted through 90 in a horizontal plane about a pivot 112 (see FIGURE 10). From the nip of the

rollers

6c and 6d the slivers o are each passed around in the groove of a peripherally grooved transmission pulley 17 by means of which the direction of travel of the slivers o is turned through 90 to direct the slivers o towards the finishing drawing head or frame E. The pulley 17 is so located as to provide appropriate spacing between the slivers o as they pass towards the frame E.

Between each pulley 17 and the frame is provided a pair of sliver supporting rollers 6e and 6i which are mounted upon respective horizontally disposed shafts 91 and 90 supported on the main frame of the apparatus (see FIG. 9). The shafts 90 and 91 are arranged at right angles to the driving shaft to which is secured a bevel driving gear 91e with which meshes a driven bevel gear 91b which is keyed to the shaft 91 of the upper roller 6e. Also keyed to the shaft 91 is a gear wheel 91a which meshes with a gear 90a keyed to the shaft 90 (see FIG. 9). Thus upon rotation of the shaft 10 by the associated electric motor (not shown) the bevel gears 91e and 91b together with gear wheels 91a and 90a serve to drive both the supporting rollers 6e and Gf. From the pairs of supporting rollers 6e and f, the slivers o pass along a table 1c and through guides 1a formed on the table 1c to the finishing drawing head where they are threaded in the manner described in connection with the embodiment of the invention illustrated in FIGURES 1 to 5 and FIGURE 7.

As illustrated in FIGURE 8, though the particular feature about to be described may equally well apply to the arrangement shown in FIGURE 3, each funnel 5c is, preferably, so mounted that the axis thereof is inclinable relative to a main frame member W of the apparatus. To this end the funnel 5e is supported in an aperture formed in an end of a cranked arm 13 remote from the frame member W. An end of the arm 13 adjacent the frame member W is pivotally mounted at 13a and formed with arm members 13b and 13C respectively extending transversely on opposite sides of the arm 13. By means of operating

screws

13d and 13e which co-operate with the arms `13b and 13e and engage at forward ends thereof abutment means provided on and by the member W, the inclination of the arm 13 and, therefore, of the funnel 5e can be adjusted.

From the preceding description of preferred embodiments of the invention it will be apparent that by means of the invention successive drawing and re-forming operations can be continuously and without interruption performed on slivers of textile fibres. By virtue of this feature the invention provides a compact form of apparatus having a high efficiency in relation to its size. Because of the compactness of the apparatus only a comparatively small amount of factory space is required for its operation and the labour force required for operating and maintaining the machine is small. Further, since the slivers of textile fibres during their passage through the apparatus do not require to be cut, a large saving in the number of collecting vessels employed is effected. The apparatus of the invention provides a high yield of refined finished textile sliver and wastage of raw material is minimised.

What I claim is:

Apparatus for drawing and collecting textile fibres, comprising a plurality of rows of storage vessels each vessel being adapted to contain a sliver of textile fibres, a plurality of drawing sections each adapted to receive slivers from at least one row of storage vessels and to form the slivers received thereby into a web of textile fibres, a plurality of first combining means adapted each to combine the fibres of one of said webs of textile fibres to form a further sliver, an endless band conveyor means for transporting said further slivers, a plurality of conduit means each for the passage therethrough of one of said further slivers from one of said first combining means to the conveyor means, said conduit means being arranged so that, in operation, the conveyor means receives the said further slivers therefrom at transversely spaced locations, a finishing drawing section for receiving from the conveyor means and forming into a further web of textile fibres the said further slivers, second combining means -for combining into a finished sliver the fibres of the further web, and at least one collecting vessel for receiving and storing the finished sliver.

References Cited in the file of this patent UNITED STATES PATENTS 277,606 Prest May l5, 1883 532,405 Threlfall Jan. 8, 1895 2,412,357 Robinson Dec. 10, 1946 2,736,071 Forsythe et al Feb. 28, 1956 FOREIGN PATENTS 1,179,852 France Dec. 22, 1958 380,367 Great Britain Sept. 15, 1932