US2075525A - Regulating feeding and forming roll in opening and picking machinery - Google Patents

Description

March 30, 1937. KERSHAW REGULATING FEEDING AND FORMING ROLL IN OPENING IICKING MACHINERY Original Filed Aug. 3, 1934 3 Sheets-Sheet l lNVENTOR March 30, 1937. I .1. G. KERSHAW REGULATING FEEDING AND FORMING ROLL IN OPENING AND PICKING MACHINERYI Original Filed Aug. 3, 1934 3 Sheets-Sheet 2 N VEN TOR *fif D fiTTUR VEL March 30, 1937- J. a. 'KERSHAW 2,75,25

REGULATING FEEDING AND FORMING ROLL IN OPENING AND PICKING MACHINERY Original Filed Aug. 5, 1934 s Sheet-Sheet 3 Patented Mar. 30, 1937 UNITED STATES PATENT OFFICE.

REGULATING FEEDING AND FORMING ROLL IN OPENING AND PICKING MACHINERY Original application August 3, 1934, Serial No.

738,282. Divided and 1935, Serial No. 22,820

7 Claims.

The invention relates to a regulating feeding and forming roll in cotton machinery, as described in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially in introducing in a scutching and picking machine following the collecting rolls, a regulating roll in which the contact with the pedals through the material,

is constructed to insure a continuous overlap of contiguous longitudinal flutes in engagement with the pedals under the treated substance, as pointed out in the claims for novelty following a description in detail of the features of the construction.

The objects of the invention are to insure a continuous pressure on the pedals through the fibrous material passing between the regulating roll and pedals which is necessary to prevent a go dancing motion of the pedals which give a false movement to the core belt driving the regulating rolls, which is very undesirable in so far as fixed results are concerned, and which is described in the specification attached to the application filed under Serial Number 738,282, on August 3rd,

1934 of which this application is a division, and

generally to provide a good regulation in a machine used for the treatment of fibrous material.

In the drawings, Figure 1 is a longitudinal sectional view of one form of machine in which the regulating, feeding and forming roll is introduced after the collecting rolls as customary.

Figure 2 is a plan view of the machine as illustrated in Figure 1.

Figure 3 is an enlarged sectional detail showing the parts concerned in this invention.

Figure 4 is a plan view of the same parts illustrated in Figure 3.

Figure 5 is a detail showing a fragmentary view of the spiral roll over the pedals of the operating mechanism broken away towards their inner end.

Figure 6 is a cross sectional view on the line 6-6 in Figure 5.

Figure 7 is a cross sectional View on the line 1-1 in Figure 5.

Figure 8 is a detail showing a modification of the arrangement of flutes in the regulating roll.

Like numerals of reference indicate corresponding parts in the various figures.

This invention has to do primarily with cotton machinery though the application of it may be used in other machines. However, it is only required in this particular case to show relative parts in one, while not claiming anything in this application May 22,

respect to novelty for these particular features or in any way restricting the invention to a particular field, though the cooperating parts shown in the illustrations of the invention are largely confined to pickers and the carriers leading thereinto, which are usually found in scutching and picking machines.

Referring to the drawings, the collecting rolls, indicated by the numerals I5 and i6 have the rows of spikes I! and [8 respectively preferably in spiral arrangement. These rolls reduce the mass of cotton to a thickness suitable for passing under the regulating roll l9, when it is pressed against the yielding pedals 20 of the regulating motion. In order to prevent dancing of the pedals, which interferes with good regulation, the flutes of the regulating roll are cut in spiral fashion in such a pitch that two adjoining flutes are in contact with any pedal at the same time, which maintains a continuous engagement and pressure on the cotton sheet in a transverse direction from side to side, in other words, there are no intervals between pressures as under pres ent conditions where all teeth are parallel with the longitudinal axis.

The tops of the flutes 2| forming the spirals may be threaded as shown at 22. The making of the flutes of the regulating roll in spiral fashion is necessary because of the deep grooving required to collect and feed the dense mass of cotton to the feed rolls, and at the same time preserving an equal number of blows per inch as in a two process system. This spiral fluting of the regulating roll permits smooth contact with the flat surface of the pedals at all times, and does away with the dancing motion of the pedals caused by deep straight grooves parallel with the axis of the roll.

The cotton passes under the regulating roll l9 and any variations in thickness of the cotton causes alterations in the disposition of the pedals 2!]. Pedal movements collectively control the position of the regulator cone belt 23 and consequently the speed of the regulating roll l9, which is driven from it. The cotton then passes between the feeding rolls 24 and 25, which project the sheet in its flattened condition into the path of the beater 26.

Briefly in the operation, this roll is distinctly a regulating roll, pressing the fibrous material down on the pedals until it reaches the feeding rolls leading to the beater 26 which is the final beating to take out all extraneous matter usually driven out during the beating.

This regulating roll is known as a fluted member which presses down on the mass of cotton in rotation and in pressing down any inequality of the fibrous mass will clearly show if that inequality is great enough to affect the pedals for the roll is journalled in the sides of the machine and is therefore unyielding. Consequently the yielding must take place in the pedal structure below the roll.

This pedal structure aifects the speed of the regulating and feed rolls, and the less this speed is changed the better the result will be for variations are not only objectionable, but frequently injurious to the regularity of the product. Therefore the straight fluted roll is not so serviceable as the spirally fluted roll, for the pitch of the spirals makes it possible to always have smooth contact between the regulating roll and the pedals through the fibrous material between them.

The dancing of these pedals is a well known feature in the operation of cotton machinery, and if this dancing is eliminated, then a great advance has been made in the progress of the fibrous material through the machine, and in this invention there need be no dancing whatsoever, though any inequality will still insure correct driving of the regulating roll and perfect regulation of the resultant lap.

What I claim is:

1. In a regulating roll in cotton machinery, a collecting mechanism, a speed adjusting mechanism having pedals projecting therefrom and a regulating roll having spiral grooves throughout in its periphery forming protuberances following the direction of the grooves and adapted to engage said pedals for regulating the speed of the regulating roll.

2. In a regulating roll in cotton machinery, a collecting mechanism, a speed adjusting mechanism having pedals projecting therefrom and a regulating roll spirally grooved for projecting spiral flutes formed at a pitch that will insure a plurality of overlapping flutes always in contact with the pedals thereunder.

3. In a regulating roll in cotton machinery, a collecting mechanism and a speed adjusting mechanism having pedals projecting therefrom, a regulating roll spirally grooved for projecting spiral flutes transversely grooved at intervals and adapted to engage said pedals thereunder.

4. In a regulating roll in cotton machinery, a collecting mechanism, a speed adjusting mechanism having pedals projecting therefrom, and a regulating roll spirally fluted and forming a plurality of teeth having spiral top flats throughout in its periphery and adapted to engage said pedals thereunder.

5. In a regulating roll in cotton machinery, a collecting mechanism, a speed adjusting mechanism having pedals projecting therefrom and a regulating roll spirally grooved for projecting teeth having threaded tops and adapted to engage said pedals thereunder.

6. In a regulating roll in cotton machinery, a collecting mechanism, a speed adjusting mechanism having pedals projecting therefrom and a regulating roll having spiral grooves throughout in its periphery forming flutes following the direction of the grooves and operating in combination with the said speed adjusting pedals during the forming of a lap.

'7. In a scutching or picking machine, a beater, a feed passage and a delivery section receiving fiber from said beater and having feed regulating devices, collecting rolls and a spirally fluted roller smoothing the fibers to form a sheet and cooperating with speed changing levers in regulating the thickness and density of the forming sheet, feed rolls, a beater receiving the sheet and rollers progressing said sheet to a lap roll for the building of a lap.

JOHN GREEN KERSHAW.

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