US2387949A - Winding machine - Google Patents

Description

Oct. 30, 1945. w 5|EGENTHALER 2,387,949

WINDING MACHINE Filed May 10, 1944 Patented Oct. 30, 1945 WINDING MACHINE Walter Slegenthaler, Erlenbach, Zurich, Switzerland, assignor to Maschinenfabrik Schirer, Erlenbach, Zurich, Switzerland Application May 10, 1944, Serial No. 534,932 In Switzerland August '7, 1943 8' Claims.

This invention relates to winding machines. Winding machines are known in which the winding spindles are driven by means of driving drums and the speed of revolution of said spindles is kept to a constant relation to the number of revolutions performed by the thread guide disc, for the purpose of obtaining a winding the compactness of which is uniform throughout the thickness of this winding. The crosswinders operating on this principle are provided with a traversing cam for reciprocating the thread guide. The masses thus having to be reciprocated are relatively great in consequence whereof the working speed of the machine must be kept within correspondingly narrow limits in order to prevent the winding thread from being excessively strained and to provide for the wear on the machine parts to be minimized as much as possible.

In the winding machine according to the present invention the winding spindle is in positive driving association with a thread guide drum and in the operation of the machine one of these two concomitantly driven parts is adjusted relative to the other part due to the thread winding increasing and bearing on the thread guide drum. By this means the relation between the speeds of revolution of the winding spindle and the thread guide drum remains constant while the winding operation proceeds so that uniformity of the crosswind which is obtained throughout, contrary to whatmay be termed an undesirable at random crosswind which results if the angular velocity decreases as the diameter of the winding increases. The winding spindle and the thread guide drum can be driven at high rotary speeds whereby a correspondingly high efilciency of working accrues without the wear on the machine parts or the straining of the winding thread becoming excessive.

.An embodiment of the invention is illustrate in a sectional elevation by way of example only in the accompanying drawing.

The illustration is restricted to the showing of the parts necessary for a good understanding of the invention. The numeral I designates the winding spindle which is mounted in an inclined position in bearings 3 and 4 in a gear box 2 and has a winding support arranged thereon at the lower end portion of this spindle. Driving movement is transmitted to the winding spindle I at the higher spindle end portion not shown. This driving movement can be effected, for example, by an endless driving belt which is provided in common with a plurality of winding machines mounted on one and the same frame.

) The winding spindle I transmits driving movement by means of a bevel gear drive 6, I to an upstanding fluted spindle 8 which is guided in a. bearing 9 on the bottom of the gear box 2 and projects into a casing I 0 in which this spindle protrudes through a bevel wheel II which is suspended from a bearing I2 mounted in the casing III. The bevel wheel II which is in mesh with the fluted spindle 8 for rotation therewith meshes in a bevel wheel I3 which is secured to a horizontal shaft I4 which is mounted in two bearings 'I5,, IS. The bearing I5 is situated inthe gear casing III and the bearing I6 is arranged on an angular bracket I'I which is connected to this casing.

On the shaft I4 the thread guide drum I8 is secured. The gear casing I0 is engaged by one end of a flexible tension member which passes over a guide roller I9 fastened to the gear box 2 and the second end of which carries a weight 20 by eifect of which the load constituted by the gear casing I0 and the thread guide drum I8 is overcome and the drum I8 is thus urged in the direction toward the winding support 5, that is, against the crosswind A being in progress of formation on said support. The gear casing I0 is vertically displaceably guided by means of two rods 2I=, 22 which lie in one and the same plane and the, lower ends of which rest on a common carrier rail 23 while their upper ends support the gear box 2. g

On a cross bolt 24 carried by the bracket IT on the gear casing l0 two rollers 25 are mounted which bear against the guide rods 2 I, 22 from the front. Two rollers 26 that are arranged on the upper portion of the gear casing I0 bear against the guide rods 2I, 22 from behind by which means the casing I0 is given vertical guidance and is laterally steadied. A spur gear 21 forms with the bevel wheel I3 being housed in the gear casing III a self-contained unit, the gear 21 transmitting rotational movement to a thread guide, which is mounted on the shaft of a gear (not shown) and cooperates with the gear 21 outside of the gear casing ID. This thread guide conducts the winding thread arriving from a lower spool toward the drum I8 which receives the thread by means of its intercrossing groove portions 28.

In the operation of the crosswinder precedingly 6, I to the fluted spindle 8, the bevel gear drive drum ll. Due to the fact that the thread guide drum I8 is urged against the crosswind A in progress of formation on the windin support 5 by influence of the weight 20 the thread guide drum is is readjusted together with its driving and mounting shaft H in accordance with the increasing thickness of the thread winding and is thus moved downwardly, this downward movement beingshared by the gear casing in so that the bevel wheel II is accordingly shifted longitudinally ofthe spindle I in engagement with the spindle surface.

The, thread guide drum it exerts on the thread winding A in progress of formation a slight pressure only so that the winding does not become unduly tight but tight enough for preventing the :structure of the thread winding -frombeingv detrimentally affected by influence of centrifugal force. Onthe other hand the bearing engages ment between'the thread guide drum [8 and the thread winding A contributes toward enhancing the precision withwhich the winding thread is placed on the winding support 5. Again, by virtue of the thread guidedruml8 sharing in the drivingmovement the winding thread is preserved insofar as it is not'subjected to material friction at the point. of contact between the drum l8 and thethread winding A. The provision of 'uni-' directional movement at all times during the operation of the machine for the drum which serves as the thread guide facilitates uniformity of tensioning of the winding thread.

The bearing pressure between the thread guide drum l8 and the winding A in progress of formation can be regulated by accordingly choosing the size of the wei ht 20. The construction of the machine may also be such that the thread guide drum I 8 comes into contact with the thread winding only after the latter has reached a certain thickness.

In the drive of the winding spindle I an auxiliary gearing may be included which functions to reduce the speed of revolution of .the winding spindle l and consequently also that of the shaft 14 of the thread guide drum l8 automatically during the operation of the machine commensurate with the increase in diameter of the winding for the purpose of maintaining the velocity of the thread portion passing on to the winding, that is, the angular velocity of the thread constant at all times.

Further the construction of the machine may be such that in the operation, owing to the thread winding or package increasing, not the thread guide drum is displaced, that is, readlusted relative to the stationary winding spindle, but the winding spindle is displaced, that is, readjusted relative to the then stationary thread guide drum. Obviously. with such an arrangement the remaining machine parts concerned must be accordingly altered.

I claim:

1. In a machine for winding a thread p kage, 9, driven winding spindle for supporting a thread package, a thread guide drum engaging said package, positive driving means, independent of the cooperation between the drum and package, drivingly connected between said winding spindle and said guide drum for concomitantly rotating said two cooperative parts, means for adjusting the position of one of said two cooperative parts relative to the other part in accordance with the .growth of said package, and means for urging said drum against said package.

9,887,949 II, It and to the shaft H to the thread guide 2; In a machine for winding a thread package, a driven winding spindle for supporting a thread package, a thread guide drum engaging said package, positive driving means including a rotary 5 fluted spindle axially dislilace'ably carrying a first bevel wheel in intermeshing relation with its fluted surface to rotate together with said fluted spindle and including a second bevel wheel driven by said iirst bevel wheel and drivingly connected with the i0 drum, said driving means being drivingly connected between said winding spindle and said guide drum for concomitantly actuating these two cooperative parts, whilst said bevel wheel is allowed to shift axially of said fluted spindle, means 15 for adjusting the position of one of said two cooperative parts relative to the other part in accordance with the growth of said package, and means for urging said drum against said package. 3. In a machine for winding a thread package, a driven windingspindle rotatable on a stationary axis for supporting a thread package, a displaceable thread guide drum engaging said package, positive driving means drivingly connected between said winding spindle and said guide drum for concomitantly actuating these two cooperative parts, means for adjusting the position of said displaceable drum relative to said stationary winding spindle in accordance with the growth of said package, and means to'urge said drum against said package.

4. In a machine for winding a thread package, a driven winding spindle rotatable on a stationary axis for supporting a thread package, a displaceable thread guide drum engaging said package, positive driving means drivingly connected between said winding spindle and said guide drum for concomitantly actuating these two cooperative parts, means for adjusting the position of said displaceable drum relative to said winding spindle in accordance with the growth of said package, and a weight for urging the drum against the package. 5. In a machine for winding a thread package, a driven winding spindle rotatable on a stationary axis for supporting a thread package, a displaceable thread guide drum mounted on a driving shaft engaging said package, positive driving means comprising a gear casing drivingly connected between said winding spindle and said guide drum for concomitantly actuating'these two cooperative parts, sa d guide drum driving shaft being arranged on said gear casing, means for adjusting the position of said displaceable drum relative to said winding spindle in accordance with the growth of said package, and a weight for urging thedrum against the package.

6. In a machine for winding 9. thread package, a driven winding spindle rotatable on a stationary axis for supporting a thread package, a displaceablethread guide drum mounted on a driving shaft engaging said package, positive driving means comprising a vertically guided gear casing drivingly connected between said winding spindle and'said guide drum. for concomitantly actuating these two cooperative parts, said guide drum driving shaft being arranged on said vert cally guided gear casing, means acting upon said gear casin for adjusting the position of said displaceable drum relative to said winding spindle in accordance with the growth of said package, and a 7. In amachine for winding a thread package, a driven winding spindle rotatable on a stationary axis for supporting a thread package, a displaceable thread guide drum mounted on a driving shaft engaging said package, positive driving weight for urging the drum against the package.

means, independent of the cooperation between the drum and package, and including a rotary fluted spindle axially displaceably carrying a bevel wheel in intermeshing relation with its fluted surface to rotate together with said fluted spindle,- a bevel wheel on said drum driving shaft engagin said first-mentioned bevel wheel, said driving means comprising a. vertically guided gear casing and being drivingly connected between said winding spindle and said guide drum for concomitantly relatively actuating said spindle and drum, whilst said bevel wheel shifts axially of said fluted spindle as said vertically guided gear casing is relatively displaced, said guide drum driving shaft being arranged on said vertically guided gear casing, means acting upon said gear casing for adjusting the position of said relatively displaceable drum relative to said winding spindle in accord- I ance with the growth of said package, and a weight for urging the drum against the package.

8. In a machine for winding a thread package, a driven winding spindle for supporting a thread package, a thread guide drum mounted on a driving shaft engaging said package, said winding spindle extending obliquely to said guide drum driving shaft, positive driving means, independent of the cooperation between the drum and package, drivingly connected between said winding spindle and said guide drum for concomitantly rotating said winding spindle and thread guide, means for adjusting the position of one of said two cooperative parts relative to the other part in accordance with the growth of said package, and means for urging said drum against said package.

WALTER SIEGENTHALER.

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