US2946178A - Reversible spindle drive for textile machine - Google Patents

Description

July 26, 1960 E. HAMEL 2,946,178

REVERSIBLE SPINDLE DRIVE FOR TEXTILE MACHINE Filed July 30, 1956 INVENTOR EDMUND HAMEL ATTORNEY United REVERSIBLE SPINDLE DRIVE FOR TEXTILE MACHENE The present invention relates to means to provide a reversible spindle drive for textile machines and more particularly for spinning and twisting frames.

One of the objects of the present invention is to prd vide means to change the direction of rotation of the spindles on spinning and twisting frames.

Another object of the present invention is to change the direction of rotation of the spindles of spinning and twisting frames by providing means to effect pole reversion of the main drive motor. In spinning and twisting frames the delivery roller shafts and delivery rollers must turn in the same direction at all times in order to provide a constant and uniform delivery of yarn or thread to the spindles irrespective of whether a left hand or right hand twist is imparted to the yarn or thread.

Inasmuch as thread delivery to the spindles and thread Winding on the spindles must be maintained in a direct ratio; it has been necessary to employ a common drive for both the spindles and drawing rollers. Separate drives for the spindles and the drawing rollers are impractical due to the difficulties inherent in synchronizing the drive elements of the spindles with the drive elements of the drawing rollers.

A change in the direction of rotation of spinning and twisting spindles is not only desirable but necessary in order to impart either a right hand or left hand twist to the yarn or thread.

In the past, mechanisms employed to change the direction of rotation of spindles on spinning or twisting frames usually comprised a gear transmission at the drive head end of the frame. The transmission was under control of a motor. A change in the polarity of the motor effected a change in the spindle drive through actuation of the transmission gear. Complicated synchronizing apparatus was employed to insure exact timing in the changing of the polarity of the motor in order to avoid a clash of the mechanical elements in the transmission.

The present invention obviates these difiiculties by eliminating the gear transmission and substituting a pivotally mounted vertical arm which controls a horizontally mounted bell crank lever. The bell crank lever actuates and controls a double acting or pole reversing switch which controls the direction of rotation of the main drive shaft motor.

Other objects and advantages of the present invention will be pointed out'in part and become apparent in part in the following specification and claims.

Referring to the drawings wherein like reference characters refer to like parts.

Figure 1 is a diagrammatic end elevational view of the main drive of a double sided spinning frame incorporating the present invention.

Figure 2 is a view similar to Figure 1 showing the various parts in actuated position.

Referring to Figures 1 and 2 wherein reference character 1 represents the main drive shaft of a double sided spinning or twisting frame. A spur gear 2 is fixed to and rotated by main drive shaft 1. An intermediate gear 3 res Patent in constant mesh with spur gear 2 is fixed to a shaft 3A rotatively mounted in the machine frame. A drive drum 4 is fixed to shaft 3A. A second shaft 4A is rotatively mounted in the machine frame. An idler drum 4' is fixed to shaft 4A. Shafts 3A, 4A, and drums 4, 4' extend the full length of the machine.

Spindle bearings 6, 6 are rotatively mounted in the machine frame in a manner well known in the art. A plurality of spindle bearings 6, 6' are provided. An idler drum 5A is rotatively mounted in the machine frame. An endless tape or belt 5 is passed over idler drum 5A, contacting drums 4, 4' on opposite sides and then passing over drums 4, 4 engages spindle bearings 6, 6 to drive spindle bearings 6, 6' through drive drum 4. This mechanism is old in the art.

A stub shaft 7A is fixed in the head end of the machine frame. A gear 7 rotatively mounted on stub shaft 7A engages and is driven by spur gear 2. An arm 10 is pivotally mounted on stub shaft 7A. Arm 10 is provided with a shaft 10A. An intermediate gear 8 and a pinion gear 9 are fixed to shaft 10A. Arm 10 is also provided with a cam follower 10.

A bell crank lever 20 pivotally mounted in the head end of the machine frame at 21 is provided with a short arm 22 and two cam surfaces 25 and 26 which are engaged in timed relation by cam follower 10'. A pole reversing switch 24 fixed to the head end of the machine frame is provided with a push button 23 under control of short arm 22.

Figures 1 and 2 depict spinning and twisting frames which are double sided and in which a single shaft provides a common drive for both sides of the frame.

Two delivery roll shafts 14A and 14b are rotatively mounted in opposite sides of the machine frame. Gears 14 and 14' are fixed to delivery roll shafts 14A and 14b respectively. Shaft 11A is fixed in one side of the machine frame. Shaft 11b is fixed in the other side of the machine frame. Shafts 12a and 12b are rotatively mounted in the machine frame.

A gear 11 is rotatively mounted on shaft 11A. A gear 15 is rotatibely mounted on shaft 11b. Gears 11 and 15 are in constant engagement. Two gears 12' and 13 are fixed to shaft 12b. Two gears 12 and lit-are fixed to shaft 12A. Gear 12' meshes with gear 11 while gear 13 meshes with gear 14. Gear 12 meshes with gear 15 while gear 13 meshes with gear 14. Gear 9 alternately meshes with gear 11 or 15 so as to drive delivery roll gears 14 and 14' in the same direction regardless of the direction of rotation of shaft 1 and gear 2.

In operation pole reversing switch 24 is electrically connected to the electric motor (not shown) which drives main drive shaft 1. Referring toFigure 2, main drive shaft 1 and spur gear 2 rotate in the direction of the arrow. Gear 3 meshing with spur gear 2 will cause drum 4to rotate in the direction of the arrow on drum 4. Tape 5 will cause drum 4' to rotate in the direction of the arrow on drum 4'. Tape 5 therefore drives spindle bearings 6, 6 in a given direction.

Gear 7 meshing with gears 2 and 8 Will cause gear 7 to rotate in the direction of the arrow on gear 7 and gear 8 to rotate in the direction of the arrow on gear 8. Gear 9 having a common shaft 10A with gear 8 and engaging gear 11 will drive gear 11 in the direction of the arrow on gear 11. Gear 11 meshes with gear 12'. The shaft 12b common to gears 12' and 13 allows gear 12 to drive gear 13' which meshes with gear 14' to drive gear 14' in the direction of the arrow on gear 14.

When gear 9 engages gear 11, arm 10 is manually postioned so that cam follower 10' engages cam surface 26 thereby positioning short arm 22 away from button 23 of pole reversing switch 24.

Referring to Figure 1, wherein gear 9 engages gear 15. Then arm is manually positioned so that cam follower 10' engages cam surface 25 thereby positioning short arm 22 against or toward button 23 of pole reversing switch 24 to change the polarity of the main drive motor so that main drive shaft 1 turns (Figure 1) in a direction opposite to the direction of rotation of main drive shaft as shown in Figure 2.

Having shown and described preferred embodiments of the present invention, by way of example, but realizing that structural changes can be made and other examples given without departing from either thefspirit or scope of this invention.

What I claim is:

1. A reversible spindle drive for textile machines having oppositely located spindle holders, and oppositely located first and second delivery roll shafts located above said oppositely located spindle holders, a main drive shaft, a first means rotatively connecting said main drive shaft with said oppositely located spindle holders to rotatively drive said spindle holders in a pro-selected direction of rotation, the combination therewith of a first gear train adapted to rotate said first delivery roll shaft, a second gear train adapted to rotate said second delivery roll shaft, said first and second gear train intermeshing, a pivotally mounted arm having a cam follower and provided with gear means operatively connected to said main drive shaft and adapted to engage either said first gear train or said second gear train, to drive said first and second gear trains in the same direction regardless of the direction of rotation of said main drive shaft, a button actuated pole reversing switch for controlling the direction of rotation of said main drive shaft, a pivotally mounted bell crank lever having a cam surface and a short arm, said short arm engaging to control the position of said button actuated pole reversing switch, said cam follower engaging said cam surface and through manual control of said arm actuating said'bell crank lever to position said short arm toward or away from said button actuated pole reversing switch and cause said gear means to engage either said first gear train or said second gear train.

2. A reversible spindle drive for textile machines consisting of a machine frame, oppositely located spindle holders mounted for rotation in said machine frame, a main drive shaft rotatively mounted in 'said machine frame, a spur gear fixed to said main drive shaft, a second shaft and a third shaft, both rotatively mounted in said machine frame on opposite sides of said main drive shaft,

an intermediate gear fixed to said second shaft and in meshing engagement with said spur gear, an idler drum rotatively mounted in said machine frame, a first drum fixed to said second shaft, a second drum fixed to said third shaft, an endless tape engaging to unite for rotation of said idler drum, said first drum, said second drum and said oppositely located spindle holders, a stub shaft fixed in said machine frame, a first gear ro-tatively mounted on said stub shaft engaging said spur gear, an arm pivotally mounted on said stub shaft. a fourth shaft rotatively mounted on said arm, an intermediate and a pinion gear fixed to said fourth shaft, said intermediate gear engaging said first gear, a cam follower formed in one end of said arm, a bell crank lever pivotally mounted in said machine frame having a short arm and two cam surfaces, a pole reversing switch provided with a push button under control of said short arm for controlling the direction of rotation of said main shaft, said cam follower engaging alternately one or the other of said two cam surfaces, a first delivery roll shaft rotative'ly mounted in one side of said machine frame, a second delivery roll shaft rotatively mounted in the opposite side of the machine frame, a second gear fixed to said first delivery roll shaft, a third gear fixed to said second delivery roll shaft, a fifth and a sixth shaft fixed in said machine frame, a seventh and an eighth shaft rotatably mounted in said machine frame, a fourth gear rotatably mounted on said fifth shaft, a fifth gear rotatably mounted on said sixth shaft, a sixth and a seventh gear fixed to said seventh shaft, an eighth and a ninth gear fixed to said eighth shaft, said seventh gear engaging said fourth gear, said sixth gear engaging said second gear, said ninth gear engaging said fifth gear, said eighth gear engaging said third gear, manual operable means to alternately cause said pinion gear to engage said fourth gear or said fifth gear to position said cam follower in engagement with one of said two cam surfaces to cause said short arm to engage said push button to change the direction of rotation of said spindle holders while allowing said first and second delivery shafts to always rotatein the same direction.

References Cited in the file of this patent UNITED STATES PATENTS 2,244,141 Camp June 3, 1941 FOREIGN PATENTS 534,365 Great Britain Mar. '5, 1941

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