US1820310A - Spindle driving mechanism - Google Patents

Description

Aug. 25', 1931. J. A. KOOISTRA Q 1}v320,31-0 SPINDLE DRIVI NG MECHANISM Filed Feb. 6, 1951 i B 35 Z2 35 u ,w M

a? J 36 [3 I= E as I4- INVENTOR.

- ATTORNEYS rammed Au 25,. 1931 Y UNITED STATES PATENT; OFF ICE Joan A. KOoIS'IRA, or wnrrrnsvintn, iiiAssaoi-insnirs, assreivoit TO wm m v ivmonrnn worms, or ,WHITINSVVILLE, massacnnsnrrs I sPINnLE :onrvme MaoHAnIsM Application filed February 6, 1931. Serial No 513,983.

This invention relates to'spinning or twisting machines in which the spindles and spindle rails-are raised and loweredduring the operation of the machine. 2

It is the general object of my invention to provide a spindle driving mechanism for use in such machines so designed that it is effective and satisfactory for driving the-spindles in either direction, without substantial.

chan in driving tension. I

A further object is to provide @COHSCIHG tion in which both the upper and lower shafts are mounted in fixed bearings, so that power vmay be conveniently applied through either usual commercial mechanism may be used for k improvements, and

Fig. 2 is a partial plan view thereof. Referring to the draw ngs, 1 have shown parts of a spinning or twisting machine comprising an end frame 10 having ring-rails 11 fixed to the sides thereof and having spindles 12 mounted in bases 13 which are secured in vertically movable spindle. rails 14. Any

g p the spindle rails 14 and the spindles 12 carried thereby.

An upper shaft is mounted in fixed bearraisin and lowering ings 21 and supportsa drum or a plurality of pulleys 22. A lower shaft 24 is mounted in fixed bearings 25 and supports a lower drum or a plurality of'pulleys 26.

A cross frame member extends from side to side of the spinning or twisting machine and is secured at its n er ends to the under sides of the spindle rails 14:, so that. the spindle rails at the two opposite sides of the machine, together with the cross frame member 30, will all move upward or downwardas a unit. In the preferred construction, a plurality of the cross frame members 30 are provided, spaced apart as indicated in Fig. 2.

"Rod s01" shafts 32 extend through'openings in the cross frame, members and are preferably fixed therein. The rods 32 rotatably support loosely mounted guide pulleys Additional guide pulleys 35 are pivotally mounted at the upper ends of arms 36,

which are themselves pivotally supported on the rods or shafts '32. Tension springs 37 connect each pair ofopposite arms 36 and tend to. draw the arms 36 and the upper guide pulleys 35 toward each other. Stop arms 38 (Fig. 2) are fixed on the rods 32 and limit outward swinging movement of the arms 36. 1 u

' A continuous'driving belt B is commonly provided for each group of four spindles 12,

drivingtwo spindles on'each side of the machine, buteach'belt B may'drive onlyone. spindleat each side. The beltB passes over 'the upper drum or driving'pulley 22, under a guide, pulley '35 around a pair of spindles- 12 atone side of the machine,,over a guide over a second guide pulley-33, around a pair of spindles at the opposite side of the ma chine from those first. mentionedfand' then under a second guide pulley 35. and back over the upper'drum or pulley 22, all as clearly shownin Figs. 1 and-2.' 1

The swinging guide pulleys=35 are yieldingly drawn against the belt B by the springs 37 and actto take up the slack in the driving belts. i

' Either the upper shaft 20 or the lower shaft 24.- may be positively drivenand when either shaft is driven, the other shaft maybe left free to rotate. V Preferably, however, the

shafts20 and'2t are connected by l h i ao (Fig. 1) running over sprockets .(not shown) proportionate to the diameters of the dru 22 and' 26, so that the two drums will be ro tated in'unison and with thesame peripheral speed,thus providing a double driving engagement with the belts B. i f WVith. the construction shown and described, it will be seen thatthe cross frame pulley 33, under the lower pulley ordrum 26," i

members 30, with their. supported guide pul- V leys 33 and v 35, may be moved upward or, downward with 'the spindles 12 without changing the effective length of the belts B or tion, the right hand arm 36 will move outward to fi ed position against its stop 38 and the let hand pulley will take up the slack. The conditions of operation are thus identical, regardless of the direction in which the belt is driven and in which the spindles are rotated.

In the claims, the word pulley will be understood to include a drum or cylinder, which is in effect a pulley of wider face.

Hzwing thus described my invention and the advantages thereof, 1 do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is 1. Spindle driving mechanism for axially movable beltdriven spindles comprising a machine frame, upper and lower shafts mounted in fixed hearings on said frame, pulleys on said shafts, a cross frame member mounted to move vertically with said spindles, guide pulleys rotatably mounted in fixed relation to said cross frame member, take-up pulleys mounted on arms pivoted on said cross frame member, means to apply yielding tension to said arms, and continuous belts each engaging pulleys on said upper and lower shafts, guide pulleys, takeup pulleys and a plurality of spindles.

2. lSpindle driving mechanism for axially movable belt-driven spindles comprising a machine'frame, upper and lower shafts mounted in fixed hearings on said frame, pulleys on said shafts, a cross frame member mounted to move vertically with said spindles, guide pulleys rotatably mounted in fixed relation to said cross frame member, take-up pulleys mounted on arms pivoted on said cross frame member, means to apply yielding tension to said arms, and continuous belts each engaging pulleys on said upper and lower shafts, a guide pulley, a take-up pulley and a plurality of spindles at one side of the machine and a guide pulley, a take-up pulley and a second plurality of spindles at the opposite side of the machine.

3. Spindle driving mechanism for axially movable belt-driven spindles comprising a cross frame member movable vertically with said spindles, guide pulleys mounted on said cross frame member, take-up pulleys yieldingly mounted on said cross frame member, vertically spaced pulleys rotatable about fixed axes above and below said cross frame member, one of said spaced pulleys being positively driven, and a single belt connecting said spaced pulleys, said guide and takeup pulleys, and a plurality of said spindles.

l. The combination in spindle drivim mechanism as set forth in claim 3, in which fixed supports are provided for said spaced pulleys.

The combination in spindle driving mechav sun as set forth in claim 3, in which means is provided for rotating said spaced pulleys in a predetermined speed relation.

6. Spindle driving mechanism for axially mevable belt-driven spindles comprising a machine frame, upper and lower shafts mounted in fixed bearings on said frame, pulleys on said shafts, a cross frame member mounted to move vertically with said spin 1 es, guide pulleys rotatably mounted in filled relation to said cross frame member, take-up pulleys mounted on arms pivoted on said cross frame member, means to apply yielding tension to said arms, and stops to limit outward swinging movement of said arms.

In testimony whereof I have hereunto affixed my signature.

JOHN A. KOOISTRA.

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