US1738099A - Preparing machine for spinning - Google Patents

Description

Dec. 3, 1929. E. FIEVET 1,738,099

- RREPARING MACHINE FOR srmnme Filed Dec. 11, 1928 Patented Dec. 3, 1929 UNITED STATES Etienne mnvn'r, or LILLE, FRANCE PREPARING MACHINE FOR SPINNING Application filed December 11, 1928, Serial No. 325,322, and in Great Britain December 22, 19 27.

This invention relates to preparing appliances for the materials used in spinning and particularly to machines for preparing flax, hemp, jute and the like and of the type wherein fallers are employed such for example as in spreaders, drawers, roving machines and others.

In connection with this class of machines it is well known that the combs or gills together with the fallers equipped therewith require to be cleaned as often as possible as the nature of the yarn depends upon their condition and ordinarily such cleaning is efiected in place by means of hooks formed from a sort of knife blade bent upwards with which the dust which accumulates longways along the faller is withdrawn from the gills more or less rapidly according to the pitch and the nature of the material being treated.

These hooks operate satisfactorily but require considerable skill and dexterity to avoid the risk of breaking, bending, chafing or twisting the points of the pins and the great care required constitutes an objection. Another objection consists in the fact that in order to clean the gills, it is necessary to stop the machines for a considerable time.

To remedy the drawbacks of hand cleaning,

W it has been proposed to clean the fallers and gills without manual labour or stoppage of the frames by means of a series of brushes applied in such a way that the fallers deposit in the hairs of the brush, the pieces of wood and straw with which they may be laden and the down left by any one faller is removed by the succeeding faller. The arrangement is, however, quickly rendered ineflicient as the bars in dropping bend back the hairs of the brush so that the extremities of the pins escape the brush action-moreover, the rapid wear of the brush progressively increases the inefficiency.

The object of the present invention is to overcome the foregoing difficulties and to provide an automatic cleaning device which remains completely eflicient and cleans the fallers and gills without becomingdirty itself, the actual cleaning means being subject to little wear, simple, easily interchangeable and of a low cost.

The invention consists in a method of cleaning the gill bars and gills of preparing appliances of the kind indicated according to which cleaning means is inserted between a drawing roller and a dropping or disengaging faller in such a manner that the dropping or like movement of the faller brings both the bar and gills into contact with the cleaning means which removes the impurities therefrom.

formed of resilient material such as rubber which may take the form of a hollow cylindrical tube long enough to contact with all that part of the faller which is to be cleaned, said member being preferably supported upon a wire or rod passing in an axial direction therethrough.

The invention further consists in a device in accordance with the preceding paragraph in which the cleaning member is supported upon a wire in the form of a stirrup mounted with pivotal joints 011 the sides of the conductors.

The invention also consists .in improve ments in or relating to preparing machines for spinning as hereinafter described.

Referring now tothe accompanying more or less diagrammatic drawings which show by way of example one way of carrying the invention into effect:

Figure 1 is a side elevation ofa train of rollers of a second drawing frame with an embodiment of the invention appliedthereto; Figure 2 is a front elevation of the arrangelnent shown in Figure 1, fallers and gills omitted;

Figures 3, 4: and 5 are fragmental views showing successive positions shown in F igure 1.

a of the devices and t e horizontal plane passing through the axis of the said roller, preferably immediately below the conductors, and comprising a tubular member of suitable dimensions which may vary according to the diameter of the roller. and the dimensions ofthe gills and of a length corresponding to the portion of the fallen to, be, cleaned. The material from which thi member i f rm d i pr r y nadna ex he dpnaa u h ar xfaan ibbe h t y be comp e an altered in shape between the drawing roller and the faller at the moment that the latter drops and after their passing has been effected the'member may, owing to its elasticity, recover to a certain extent its original shape coming then into light contact with the '11s or combs,.t he complete original shape of t e elastic member being fully recovered when the fallerhas almost reached'its lower path. Such a cleaning member operates automatically and with'constant efficiency due to the. fact that the elastic member is capable of being. compressed in the very restricted space in it is placed and the fallers are obliged to rub against it during their fall as wellas the points of the combs or gills along their total length. lhere, is, therefore no formationof down and the, fibres hooked on to the points of the pinscannot remain there i but; are immediately returned-to the slivers or ribbons, which pass close above. Periodical I cleanings are, theref ore, no. longer necessary.

a Theblcaining member in the convenient embodiment illustrated in the. accompanying drawings is made from a simpl e rubber tube of su table, dimensions having a smooth or *otl iersurface which may be fluted if desired 91? be. fitted with projections of any form; its

. QQF ZQSPQndS to the width of each upper' pressing roller or to that of the gills thus forming an individual cleaning means each Alternatively it may correspond to the lengthof the drawing roller usually onepiece and thus constitute a cleanmeanscommon to all the gills.

lhe member is positioned immediately below-the conductors of eachsliver corresponding to the, number of pressing rollers and it is supported relative to the drawing roller bya steelw-i-rein theform of a stirrup passed looselyinto, rubber tube and held to ref volye, freely by the ends which are placed in the sidesofthe conductors.

In the convenient embodiment shown in -,r an .v 2., the eispr vi ecl a rawing r0 ler 1 with its rubber Qa'nd upper pressing roller 3, usually of elm wood, together with the metal piece 4 usually called a conductor for guiding the ribbon or strand 5 coming from the drafting of the fallers between the rollers 1 and 3 to undergo a final drafting prior to being led in the form of sliver to the doubling plate 6. Close to the drawing roller is the last faller 7 with its gills or combs 8 which is dropped from the upper slide to the lower slide to be led back by the" bottom screws.

Immediately below each conductor 4 is a cleaning member consisting of a rubber tube 9 of a suflicient thickness and of a length corresponding to the width of the conductor 4 or to that of the gills resting freely on the drawing roller 1 and of such a diameter that when the faller 7 reaches approximately the end of the course the. said tube is in tangential contact with the roller as well as with the front of the faller as shown in Figure 1 without being pressed out of shape or compressed in any way.

For maintaining the free position of the aforesaid rubber tube 9 a wire 10 is passed through it in an axial direction. This wire is bent in the form of a stirrup having sides 11 and is mounted so as to, oscillate freely about its ends 12 which are fixed in holes provided in the sides of the conductor 4; the tube 9 being thus hung freely upon the wire 10 can revolve by fric ion. u

The foregoing arrangement of the cleaning member 9 may be the same in a case where a rubber tube is in one piece and common to all conductors and a practically similar attachment may be provided.

The workin of the cleaner member 9. just described is ifiustrated by figures 3, 4: and 5 and as shown in Figure'3 when the upper faller 7 having completed its cour e is, stopped and constrained by the cams to drop onto the lower slide, the. cleaning member 9' is appreciably compressed owing to the fact; that it is squeezed between the, drawing roller 1 and the front of the faller 7 which is descending and in so, doing draws it round pressing it more and more out of shape; this drawing round is, however, controlled by the cleaning member 9 being mounted on the:

wire 10. When the pins of the gills 8 reach the level of tube 9. as the faller drops the tube is somewhat less compressed recovering almost its original shape as shown in Figure 4 yet still being slightly distorted at its point of contact with the pins which are thereby slightly rubbed along their length from the base to the points, the elastic tube 9 recovering its original shape immediately the points of the gills 8 have freed it. The operation is thesame for each successively dropping faller thus assuring automatic and ellicient cleaning of the fallers and gills.

It is to be understood that changes and modifications and improvements may be up plied according to the nature of the preparing machine using fallers to which this new kind of automatic cleaner may be applied and the use of any cleaning means at the position indicated may be adopted without departing from the spirit of the present invention.

What I claim is:

1. In preparing devices of the character described, in combination, a drawing roller, a dropping faller including a bar and gills, and cleaning means positioned tangentially of the upper face of the roller adjacent the faller in such manner that during dropping movement of the faller both the bar and gills thereof contact with the cleaning means so that the impurities are removed from the taller.

2. A device as claimed in claim 1, wherein the cleaning means consists of a resilient element which is adapted to be partially compressed by the taller.

3. A device as claimed in claim 1, wherein the cleaning means consists of a transversely disposed resilient member in the form of a hollow cylindrical tube of a length corresponding to that part of the Width of the taller which is to be cleaned.

1. A device as claimed in claim 1, wherein the cleaning means is in the form of a hollow cylindrical tube-like resilient member, and a pivotally mounted stirrup having its medial portion acting to revolubly support the member.

In testimony whereof I afiix my signature.

EUGENE FIEVET.

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