US2075457A - Winding device - Google Patents

Description

Feb 30, 1937. N. H. N'YE 9 5? WINDING DEVICE Original Filed April 30, 1931 ATTORNEYS.

Patented 3.9, 1937 PATENT orrlca WINDING DEVICE Norman H. Nye, Cuyahoga Falls, Ohio, assignor to The Vaughn Machinery Company, Ouyahoga Falls, Ohio, a corporation of Ohio Original application April 30, 1931, Serial No.

533,893, now Patent No. 2,016,509, dated October 8, 1935. Divided and this application May 28, 1935, Serial No. 23,884

Claims.

This invention relates to winding devices and more particularly to the provision of improved devices of this kind, wherein the strand or strip of material being wound will have either a. constant lineal speed or a controlled variable speed.

This application is a division of my original application Serial No. 533,893, filed April 30, 1931, now Patent No. 2,016,509, issued October 8, 1935.

Winding devices have been constructed here- 10 tofore embodying many different forms of governing mechanisms, whereby the speed of the winding means is regulated in response to the tension or slackness oi the material being wound. In the main, these devices have been impractical or unsatisfactory because the governing mechanism requires very careful adjustment to suit the strength of the material, and if the governing mechanism is not correctly adjusted the tension to which the material is subjected will be excessive, or the speed of the winding means will not be correctly regulated In my winding device, I propose to govem the winding means in such a way that the speed of the latter will be correctly regulated, regardless of variations occurring in the tension of the material being wound.

Accordingly, it may be stated that as an object of my invention I aim to provide a novel form of winding device, in which the speed of rotation of the spool, or like winding means, will be automatically regulated in response to the lineal speed of the material.

Another object of v my invention is to provide a device of the kind mentioned, in which the speed of rotation of the winding means is regulated by means actuated in response to a speed difierential between a member driven by the material and a member driven from the source of power which actuates the winding means.

Another object of my invention is to provide a device of the kind mentioned, in which the speed of rotation of the winding means is governed by controlling the delivery of power thereto by control means which is responsive to changes in the lineal speed of the material.

A further object of this invention is to provide winding apparatus in which the arbor or spool is driven at variable speeds through a clutch, and wherein the operation of the clutch is controlled by relative traversing movement between coopv crating threaded members one of which is driven at a speed substantially proportional to the speed or the strand and the other of which is driven at a substantially constant speed.

Other objects and advantages of this invention will be apparent from the following description when taken in conjunction with the accompanying sheet of drawings, in which,

Fig. 1 is an elevational view, partly in section, of a winding device embodying my invention, and

Fig. 2 is a. partial transverse sectional view of the clutch as indicated by line 2-2 of Fig. 1.

In the drawing, to which detailed reference will presently be made, I have shown winding devices in which the-speed of rotation of the winding means is regulated by means responsive to the lineal speed of the material, and although in il- 'lustrating my invention I have shown only one such device, it will be understood, of course, that the principle of my invention may be embodied in various winding mechanisms including those used in conjunction with machines for drawing wire, or with machines for performing annealing, tinning, enameling or other operations.

In Fig. 1 I have represented generally a machine lil, such as a wire drawing machine, from which the strand H is being delivered for winding on suitable rotatable winding means, here shown in the form of a spool [2. As the strand is wound upon the spool, it may be laid or distributed thereon by means of the distributing device l3. No detailed description of this device is believed to be necessary, since any one of the many available devices of this kind may be used.

The spool I2 is removably mounted upon a suitable arbor or carrier 14 which is secured to the drive shaft l5. This drive shaft is supported in suitable bearings 16 mounted in the casing l1, and is adapted to be driven through the clutch mechanism I8 from any suitable source-of power, such as the electric motor IS. The clutch I8 is of the type known as a slip clutch, and although any suitable clutch construction may be used, the device should be such that the power transmitted to the spool through the belt 20' and the pulley 2| may be readily controlled so as to regulate the speed at which the spool is rotated.

The clutch construction herein illustrated includes a clutch element or hub 22 keyed to the shaft l5 and having a plurality of spaced friction discs 23 carried thereon, and a second clutch element'or drum 24 also having a plurality of friction discs 25 carried thereon and arranged between, and in alternate relation with, the friction discs 23. The clutch element 24 is constructed with a sleeve portion 26 which is journaled upon the shaft I5 and to which the pulley 2| is keyed or otherwise secured. The power transmitted through the clutch is regulated by varying the friction between the sets of friction discs, and for this purpose I provide a disc compressing member 28. This compressing member may be rotatable with the shaft |5 but is supported thereon so as to have limited axial movement thereof. An actuating rod 29 is slidably mounted in the shaft 5, having its inner end operably connected with the compresslngmember 28 by means of the pin 28, and at its outer end being provided with a rotatable contact button 30.

It will be seen from the arrangement of clutch structure just described that when a force is applied to the bu -ton 30 to press the same inwardly toward the spool 2, the friction between the clutch discs is increased, causing a decrease in the amount of slippage therebetween and correspondingly increasing the speed of rotation of the spool. When pressure upon the button 30 is reduced or released, the friction between the clutm discs is also reduced, with the result that the amount of slippage between these discs is increased and the speed of rotation of the spool is correspondingly decreased.

It should be stated that as the driving motor I9 I may employ an electric motor having a substantially constant speed characteristic and which may be mounted as shown in Patent No. 1,990,834, granted February 19, 1935, and vary the speed of rotation of the spool |2 by varying the transmission of power thereto. That is to say, I would permit the motor Hi to be operated at substantially constant speed and vary the speed of the spool |2 by regulating the amount of power transmitted thereto from the motor. Instead of providing a separate motor for driving the spool as shown in Fig. 1, the spool may be s driven in the same way i; om the driving means of the machine I 0, which operates at substantial- I ly constant speed.

Accordingly, to regulate the speed at which the spool I2 is driven by varying the amount of power transmitted through the clutch, as just explained,

I provide means for actuating the clutch in response to the lineal speed of the material being wound. To this end I employ a sheave or drum 32, which is secured to a shaft or spindle 33 and around which the strand II is wrapped. This shaft is rotatably mounted in, and extends through a second shaft 34 which is rotatably supported in bearings 35 mounted in suitable supporting means, such as the bearing bracket 36 secured to the casing of the machine It). At the end of the spindle 33 opposite that to which the drum 32 is secured, I provide a helically threaded screw portion 31 which cooperates with a similarly threaded nut 38. This nut is secured to a pulley 39, which in turn is secured to the shaft 34 and is adapted to be driven by any suitable means, preferably by some means operating at substantially constant speed, which might be an individual motor or a part of the machine I0. In this instance the pulley 39 is shown as being driven from the motor |9 by the belt 39'.

It will be seen from this arrangement that, as the strand I is taken up by the spool I2, the drum 32 and the spindle 33 to which it is secured will be rotated at a speed corresponding with the rate at which the strand is being wound. At the same time, the pulley 39 and the nut 38 secured thereto will be rotated in the same direction by the belt 39'. If the speed of rotation of the spindle 33 and that of the nut 38 are exactly equal, there will be no relative movement therebetween. In other words, if the speeds of these two members are equal, there will be no tendency for the screw portion 31 to travel through the nut in either direction, but if the spool |2 tends to take up the strand at a rate which will give the spindle 33 a faster speed of rotation than the nut 38, the spindle will travel through the nut in a lefthand direction, as seen in Fig. 1. If the spool |2 tends to run too slowly, the spindle 33 will travel through the nut 38 in the opposite direction to press the contact button 40 against the contact member 4|.

To transmit motion from the speed responsive device just described to the clutch |8 so as to regulate the speed of the spool accordingly, I provide a rod 42 on one end of which the contact member 4| is slidably and rotatably mounted and at its opposite end is pivotally connected to the arm 43 of the bell crank lever 44. Suitable guiding means may be provided for the rod 42, such as the guide bracket 45, which is carried by the casing of the machine Ill. A rod 46 connects the arm 41 of the bell crank lever 44 with the arm 48 of a clutch actuating lever 49. The lever 49 is pivotally supported adjacent the clutch |8 by means of the bracket 50, and is provided with an actuating arm or finger 5| which engages the rotatable button 30. It will be seen from the arrangement of linkage just described that when the rod 42 is moved toward the right, as seen in Fig. l, the clutch pin 29 will be moved inwardly to increase the friction between the clutch discs and thereby increase the speed of rotation of the spool.

Since the transmission of power by the clutch l8 depends upon the pressure applied to the clutch discsrather than the extent of movement of these members, I provide a yielding connection between the member 4| and the rod 42, so that changes transmitted through the linkage to the clutch will be in the nature of relatively slowly acting pressure changes rather than as direct or sudden movements, such as would be transmitted through rigidly connected linkage, and would result in sudden changes in the speed of the spool and probably in breakage of the material being wound. This yielding connection comprises a coil spring 52 having one end in engagement with, and centered upon, the contact member 4| and its other end in engagement with and centered upon, a collar 53. The spring 52 is normally under slight compression so as to always hold the member 4| against the button 40. The collar 53 is pinned or otherwise secured to the rod 42, so that upon movement of the contact member 4|, changes occurring in the compression of the spring 52 will be transmitted to this rod and through the linkage to the clutch. Movement of the spindle 33 toward the left, as seen in Fig. l, or in other words, in a clutch releasing direction, will be limited by the engagement of the button 40 with the nut 38, and movement of the spindle in the opposite, or clutch actuating direction, is limited by the hub 54 of the drum 32 engaging the outer end of the shaft 34.

It will now be readily seen from the winding device disclosed, that by my invention I have provided novel mechanism of this kind in which the speed of the spool, or similar winding means, is regulated in response to a speed differential between cooperating members of a control device,

Since one of these cooperating members is driven by the material being wound, it will be seen that the speed of rotation of the spool will be correctly regulated in response to the lineal speed of the material and wholly independently of variations occurring in the tension thereof.

While I have illustrated and described the device of my invention in a detailed manner, it should be understood, however, that I do not intend to limit myself to the precise details and arrangements of structure illustrated and described, but regard my invention as including such changes and modifications as do not involve a departure from the spirit of the invention and the scope of the appended claims.

Having thus described my invention, I claim:

1. In a device of the character described, the combination of rotatable means upon which material is adapted to be wound, means for transmitting power to said rotatable means to drive the latter, and means for controlling the transmission of power to said rotatable means to thereby regulate the speed of the latter including cooperating screw and nut members, one of said members being actuated by the material,

, and means for driving the other of said mom-- bers at substantially constant speed.

2. In a device of the character described, the combination of rotatable means upon which material is adapted to be wound, means for transmitting power to said rotatable means to drive the latter, and means for controlling the transmission of power to said rotatable means to regulate the speed of the latter, said control means comprising a rotatable threaded member, means for driving said rotatable threaded member, a second rotatable threaded member driven by the material and cooperating with the first mentioned threaded member, and means actuated in response to the speed differential between said threaded members.

3. In a device of the character described, the combination of rotatable means upon which a strand is adapted to be wound, means for transmitting power from a power source to said rotatable means to drive the latter, and means for controlling the transmission of power to said rotatable means to regulate the speed of the latter. said control means comprising a pair of cooperating rotatable threaded members one of which is driven at a speed substantially proportional to the speed of the strand, and means actuated in response to relative traversing movement of the threaded members.

4. In a device of the character described, the combination of rotatable means upon which a strand is adapted to be wound, means for trans mitting power from a power source to said rotatable means to drive the latter, and means for controlling the transmission of power to said rotatable means to regulate the speed of the latter, said control means comprising a rotatable threaded member driven from said power source, a rotatable threaded member driven by the strand and cooperating with the first threaded memher, and means actuated in response to relative traversing movement of the threaded members.

5. In a device of the character described, the combination of rotatable means upon which a strand is adapted to be wound. means for supplying a strand to be wound. a source of power for the strand supplying means and said rotatable means, and means controlling the transmission of power to said rotatable means .toregulate the speed of the latter comprising cooperating threaded members one or which is driven at rate substantially proportional to said supplying means and the other of which is driven at a rate substantially proportional to the speed of the strand.

6. In a device of the character described,

the combination of rotatable means upon which a strand is adapted to be wound, means for supplying a strand to be wound, a source of power for the strand supplying means and said rotatable means, means controlling the'transmission of power to said rotatable means to regulate the speed of the latter comprising cooperating threaded members one of which is driven at a rate substantially proportional to said supplying means and the other of which is driven at a rate substantially proportional to the speed of the strand, and means actuated in response to relative traversing movement of the threaded members.

7. In a device of the character described, the combination of rotatable means upon which a strand is adapted to be wound, means for supplying a strand to be wound, a source of power for the strand supplying means and said rotatable means, a clutch for transmitting power to said rotatable means at a variable rate to vary the speed of the latter, cooperating threaded members one of which is driven at a rate substantially proportional to said supplying means and the other of which is driven at a rate substantially proportional to the speed of the strand, and a clutch operating member actuated in response to relative traversing movement of the threaded members.

8. In a device of the character described, the combination of rotatable means upon which a strand is adapted to be wound, means for driving said rotatable means at variable speeds, and means controlling the speed of operation of said rotatable means comprising a pair of cooperat ing rotatable threaded members, means for driving one of said members at substantially constant speed, means for driving the other member at a speed substantially proportional to the speed of the strand, and means actuated in response to relative traversing movement of the threaded members.

9. In a device of the character described, the combination of rotatable means upon which a strand is adapted to be wound, means for driving said rotatable means at variable speeds includ ing a clutch, and means controlling the speed of operation of said rotatable means comprising a pair of cooperating rotatable threaded members, means for driving one of said members at substantially constant speed, means for driving the other member at a speed substantially proportional to the speed of the strand, and means actuated in response to relative traversing movement of the threaded members for operating said clutch.

10. In a device oi the character described, the combination of rotatable means upon which a strand is adapted to be wound, means for driving said rotatable means at variable speeds including a clutch having members operable with relative slippage therebetween, a pair of cooperating rotatable threaded members, means for driving-one of said members at substantially constant speed, means for driving the other member at a speed substantially proportional to the speed of the strand, and means actuated in response to relative traversing movement of said members for varying the clutch slippage to thereby vary the speed of said rotatable means.

NORMAN H. NYE.

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