US1981885A

US1981885A - Thread-treating device

Info

Publication number: US1981885A
Application number: US695777A
Authority: US
Inventors: Harry S Toole; James W Mitchell
Original assignee: DuPont Rayon Co
Current assignee: DuPont Rayon Co
Priority date: 1933-10-30
Filing date: 1933-10-30
Publication date: 1934-11-27
Anticipated expiration: 1951-11-27

Description

Nov. 27, 1934. H. s. TOOLE ET AL THREAD TFREATING DEVICE Fiied Oc t. so, 1935 2 Sheets-Sheet 1 ATTORNEY Nov. 27, 1934. H, s. Too| E El AL THREAD TREATING DEVICE Filed om. so,'..193s 2 Sheets-Sheet 2 Patented Nov. 27,, 1934 UNITED STATES PATENT OFFICE THREAD-TREATING DEVICE Application October 30,

17 Claims.

This invention relates to a device for continuously applying a controlled quantity of liquid, such as oil or other dressing, to a textile thread while the thread is being wound onto a cone, cop, or

the like.

The invention is particularly applicable to winding machines in which a thread is wound onto a cone or cop at variable linear speeds.

An object of the invention is to provide for the uniform treatment of the thread throughout the winding operation.

Another object of'the invention is to provide a device of the above type which may be applied to a standard winding machine.

Another object is to provide a device which is adapted to control the rate of liquid supply in accordance with the linear speed of the thread so as to maintain a uniform distribution of the liquid over the entire length of the thread.

. Another object is to provide a device which is economical in use of the liquid and which is simple and cheap to construct and install.

Still another object is to provide a device of the above type which may be readily adjusted or varied to meet the requirements of a particular case. r

The invention also consists in certain new and useful features of construction and combinations of parts hereinafter set forth and claimed.

I Although the novel features which are believed to be characteristic of this invention will be pointed out more particularly in the claims appended hereto, the invention, as for its objects and advantages and the manner in which it may be carried out, may be better understood by referring to the following description, taken in connection with the accompanying drawings forming a part thereof, in which:

Figure 1 is a front elevation of a winding machine embodying the present invention;

Fig. 2 is a partial plan view of the winding machine showing the wiper rolls and the'guide means for the thread;

Fig. 3 is a tranverse section taken on the line 3-3 of Fi 2; and

Fig. 4 is a similar section taken on the line 4-4 of Fi 2.

. Like reference numerals denote like parts in the various figures of the drawings.

In the following description and in the claims various details will be identified by specific names for convenience, but they are intended to bas generic in their application as the art will permit.

Referring to the drawings more in detail, the

1933, Serial No. 695,777

. or cops 14 suitable for fabrication.

Inasmuch a. the winding machine may include duplicate mechanisms to simultaneously wind and treat a plurality of threads, the description will be confined to a mechanism adapted to cooperate with a single thread. Two such mechanisms have been illustrated to show the relative positions of the parts near the beginning and end, respectively, of a winding operation. It is to be understood, however, that the machine will incorporate as many such mechanisms as may be desired.

Referring more particularly to one of the winding mechanisms, the thread from the source 11 is first passed through

stationary thread guides

15 and 16, thence over the wiper roll 12 and through a movable thread guide 1'7, by which the relative position of the thread and the surface of the wiper roll is controlled. The thread is then passed through a stationary thread guide 18, a tensioning device 19 and through a traversing thread guide 20 by which it is directed onto the core or cone 14 which is being wound on the rotating spindle 13.

The spindle 13 is rotatably mounted on the frame of the machine and is adapted to be .operated by any suitable driving means, not

shown. The traversing thread guide 20 is adapting the winding operation for causing the thread to be wound thereon in helical courses of progressively increasing diameters. The traversing thread guide 20 is mounted on a support 26 which is pivoted to the frame 25 in any suitable manner. The support 26 is provided with a counterweight 27 adapted to permit the support to swing about its pivot and to maintain the guide 20 in contact with the mass of thread on the spindle 13.

The tensioning device 19 may comprise a pair .100 of comb members (not shown) which are mounted on the frame 25, as by means of a bracket 32, and are adapted to control the tension of the thread as it passes to the cone 14. Suitable well-known means may be provided to adjust this tensioning device 19 in accordance with the linear speed of the thread as the diameter of the cone 14 increases.

The movable thread guide 17 is carried by 'a slide 35 which is adapted to slide on a rod 36 mounted to 1 extend longitudinally of the roll 12. The rod 36 may extend parallel to the axis of the roll 12 or may be inclined thereto as may be desired. The rod 36 may, for example, be supported at one end by a cam bar 38 which is secured in any suitable manner in a boss 39 on a bracket 40. This bracket 40 may be carried by an arm 41 which may be secured to the bracket 32. The arm 41 is also adapted to support the stationary thread guide 18 which may be adjustable if desired. The rod 36 may be supported independently of the bar 38 if desired, as, for example, directly from the bracket 40;

The slide 35 may be operated by a link 45 which is pivotally connected to an arm 46 carried by the support 26. The arm 46 may be pivoted to said support 26 as at 47 and may be held in adjusted position by means of a set screw 48 passing through an elongated slot 49 in such arm.

Obviously, the means for supporting the movable guide 17 may be varied, provided the relationship between the movable thread guide 17 and the cam bar 38 is such that the thread engages the bar in passing over the roll from the thread guide 16. The length of the arc of contact of the thread with the roll is determined by the longitudinal position of the thread on the cam bar at any particular instant. The angle of the arc of contact of the thread with respect to the transverse plane of the roll is determined by the longitudinal position of the thread guide 17 which is in turn go erned by the pivotal position of the support 26.

The wiper roll 12 may be mounted on a shaft 50 which may be held in suitable bearings in a support 51 .carried by a trough 52. The trough 52 may be carried by the frame of the machine in any suitable way and is adapted to contain a quantity of liquid into which the roll 12 clips as it is rotated. The rolls 12 may be operated by suitable belts, not shown, engaging pulleys 55 mounted on theshaft 50,. The

stationary thread guides

15 and 16 may be mounted on a plate 56 which may be carried inany suitable manner by -the trough 52. The guide 16 may, for example,

be threaded into said trough and may carry the plate 56 by means of a bushing 57 and a lock nut 58.

Referring to Fig. 1, at the beginning of the winding operation the guide 17 takes a position toward the right of the r'od 36, and as the winding progresses and the-diameter of the cone 14 on the spindle 13 increases, the support 26'is swung in a clockwise direction and causes the guide 17 to 'slide to the left. The relationship between the guide 1'? and the guide 16 is such that the angle of the threadto the transverse plane of the roll increases as the diameter of the cone 14 increases. This is illustrated by the winding mechanisms at the right and left, respectively, of Figures 1 and 2.

The shape of the cam bar-38 is such that the length of the arc of contact'of the thread with the roll 12 also increases as the thread is shifted arc to the transverse plane of the roll increase as a function of the speed of the thread. This function may be varied by changing the shape of the cam bar 38 and the relative position of the slide 35 with respect to the support 26, and is preferably such as to maintain a uniform distribution of liquid along the thread throughout the winding operation.

In order to change the adjustment of the device, it is only necessary to raise or lower the cam bar assembly or to remove the cam bar 38 from the boss 39 and to substitute a different bar, or to shape the bar as may be required to produce the desired results. The position of the slide 35 on the rod 36 may be varied by a suitable adiustment of the link 45 and of the arm 46.

In the above described device, the uniform and continuous application of liquid causes the-friction of the thread with the various guides and with the tensioning device to remain uniform and thereby eliminates fluctuations in tension of the thread which would otherwise be produced. The device provides for a wide variation in the rate of application of the liquid to the thread and is adapted to be regulated to compensate for comparatively great changes in thread speeds and to be adjusted for various types and sizes of thread.

The uniform control effected by this device permits the rolls 12 to be operated at a low speed and reduces the loss of liquid from the roll and from the thread. Suitable dampening means may be included in connection with the guide 16, if desired, to reduce the vibration of the thread. The reduction in loss of liquid represents a substantial saving in a plant using a large number of winding mechanisms.

While certain preferred embodiments of the invention have been disclosed herein, it is obvious that various changes and modifications may be made therein, and that the scope of the invention is only to be limited in accordance with the following claims when interpreted in view of the prior art.

We claim:

1. In a winding machine, thread winding mechanism, a wiper roll adapted to wipe against the thread on its way to said winding mechanism,

means extending longitudinally of said roll adapted to engage the thread to control the path of travel thereof over said roll, and means to shift the thread along said first means whereby the path of the thread over said roll may be varied.

2. In a winding machine, thread winding mechanism, a wiper roll adapted to wipe against the thread on its way to said winding mechanism, stationary means extending longitudinally of said roll adapted to engage the thread to control the path of travel thereof oversaid roll, and means to shift the thread along said first means whereby the path of the thread over said roll may be varied.

3. In a winding machine, thread winding means, a wiper roll adapted to wipe against the thread on-its way to said winding means, a bar adapted to engage the thread to control the path of travel thereof over said roll, and means to shift the thread along said bar whereby the path of the thread over said roll maybe varied.

4. In a winding machine, thread winding ireans, a wiper roll adapted to wipe against the thread on its way'to said means, a bar extending longitudinally of said roll adapted to engage the thread to control the path of travel thereof over said roll, and means to shift the thread alongsaid bar whereby the path of the thread over said roll may be varied.

5. In a winding machine, thread winding mechanism, a wiper roll adapted to wipe against the thread on its way to said winding mechanism, means extending longitudinally of said roll adapted to engage the thread to control the path of travel thereof over said roll, and means to shift the thread along said first means whereby the path of the thread over said roll may be varied, said first means being adapted to vary the length of the arc of contact of the thread with the roll as the thread is shifted therealong.

6. In a; winding machine, in combination, a pair of thread guides, a rotating roll adapted to wipe against the thread between said guides, means extending longitudinally of said roll and adapted to engage the thread to control the relative position of the thread with respect to the surface of said roll, and means to move one of said guides laterally with respect to said roll so as to shift the thread along said first means whereby both the angle and extent of the arc of contact of the thread with the roll may be controlled.

'7. In a winding machine, thread winding means, a rotatable roll adapted to dip in a bath of liquid and to wipe against the thread on its way to said winding means, a cam bar extending longitudinally of said roll and adapted to control the path of travel of the thread over said roll, a thread guide adapted to guide the thread over said bar, and a slide carrying said guide, said slide being adapted to move longitudinally of said bar to thereby shift the thread along said bar for controlling the angular position of the thread with respect to the roll.

8. In a winding machine, thread winding means, a rotatable roll adapted to dip in a bath of liquid and to wipe against the thread on its way to said winding means, a cam bar extending longitudinally of said roll and adapted to control the path of travel of the thread over said roll, a thread guide'adapted to guide the thread over said bar, and means carrying said guide, said last means being movable to shift the thread along said cam bar to thereby control the angle and extent of the arc of contact of the thread with the roll.

9. In a winding machine, thread winding means, a rotatable roll adapted to dip in a bath of liquid and to wipe against the thread on its way to said winding means, a cam bar extending longitudinally of said roll and adapted to control the path of travel of the thread over said roll, a thread guide adapted to guide the thread over said bar, a rod extending longitudinally of said roll, a slide carrying said guide slidably mounted on said rod for movement along said roll, and means to operate said slide to thereby control the angle and extent of the arc of contact of the thread with the roll.

10. In a winding machine, thread winding means, a rotatable roll adapted to dip in a bath of liquid and to wipe against the thread on its way to said winding means, a cam bar extending longitudinally of said roll and adapted to control the path of travel of the thread over said roll, a thread guide adapted to guide the thread over said bar, a rod extending longitudinally of said roll, a slide carrying said guide slidably mounted on said rod for movement along said roll, and means associated with said winding means to operate said slide in accordance with the linear speed of the thread to thereby control the angle and extent of the arc of contact of the thread with the roll.

.11. In a winding machine, thread winding means, a rotatable roll adapted to dip in a bath of liquid and to wipe against a thread on its way to said winding means, a pair of thread guides mounted on opposite sides of said roll and adapted to direct the thread thereover, a member mounted adjacent one of said guides and adapted to engage the thread between the roll and said last guide for controlling the position of the thread with respect to said roll, and means to shift said last guide laterally to bring the thread into contact with different parts of said member whereby to vary the angle and extent of the arc of contact of the thread with said roll.

12. In a winding machine, thread winding means, a rotatable roll adapted to dip in a bath of liquid and to wipe against a thread on its way to said winding means, a movable thread guide, means to move said guide longitudinally of said roll whereby to vary the angle of the arc of contact of the thread with the roll, and a cam bar adapted to engage said thread betweenv the roll and guide, said bar being adapted to vary the arc of contact of the thread with the roll as the thread is shifted by said movable guide.-

13. In a winding machine, in combination, a rotary support adapted to have a thread wound thereon in successive layers of increasing diameters, a traversing guide for guiding the thread onto said support, said guide being pivoted for movement in response to changes in the diameter of the mass of thread on said support, a wiper roll adapted to dip into a bath of liquid and to wipe against the thread on its way to said traversing guide, means to guide the thread over said roll comprising a thread guide, and means extending longitudinally of said roll and adapted to engagethe thread to control the path of travel thereof, said guide being adapted to move longitudinally of said last means in response to variations in position of said traversing guide to there- 115 by shift the thread along said last means for changing the path of travel of the thread over the roll.

14. In a winding machine, in combination, a rotary support adapted to have a thread wound thereon in successive layers of increasing diameters, a traversing guide for guiding the thread onto said support, said guide being pivoted for movement in response to changes in the diameter of the mass of thread on said support, a wiperroll adapted to dip into a bath of liquid and to wipe against the thread on its way to said traversing guide, a movable thread guide, means to shift said guide along said roll in accordance with the position of said traversing guide to increase the angle of the arc of contact of the thread with said roll with the increase in diameter of said mass of thread, and means extending along said roll adapted to engage the thread to vary the length of said are of contact as the 138 thread is shifted thereover by said movable guide.

15. In a winding machine, in combination, a rotary support adapted to have a thread wound thereon in successive layers of increasing diameters, a traversing guide for guiding the thread 140 onto said support, said guide being pivoted for movement in response to changes in the diameter of the mass of thread on said support, a wiper roll adapted to dip into a bath of liquid and to wipe against the thread on its way to said traversing guide, a movable thread guide, means to shift said guide along said roll in accordance with the position of said traversing guide to increase the angle of the arc of contact of the thread with said roll with the increase in dia- 15Q ameterof said mass of thread, and a cam bar extending along said roll adapted toengage the thread to vary the length of 'said arc of contact as the thread is shifted thereover by said m'ov- 16. In a winding machine, in'combination, a rotary support adapted to have a thread wound thereon in successive layers of increasing diameters, a traversing guide for guiding the thread onto said support, said guide being pivoted for movement in response to changes in the diameter of the mass of thread on said support, a wiper roll adapted to dip into a bath of liquid and to Wipe against the thread on its way to said traversing guide, a movable thread guide, a rod extending along said roll, a slide mounted thereon and carrying said movable guide, means to shift said slide along said rod in accordance with the position of said traversing guide to increase the angle of the arc of contact of the thread with said roll with the increase in diameter of said mass of thread, and means extending along said roll adapted to engage the thread to vary the length of said are of contact as the thread is shifted thereover by said movable guide.

hashes;

.17. In awindingmachine, in combination, a rotary suppcrta'dapted to have a thread wound thereon in successive layers of increasing diameters, Ya traversing guide for guiding the thread onto said support, said guide being pivotedto movement in response to changes in the diameter of the mass'fof. thread on said support, awlper 'roll adapted to' dip into a bath of liquid and to wipe against the thread on it Way to said traversing guide, a movable thread guide, a rod extending parallel to said roll, a slide mounted thereon and carrying said movable guide, means to shift said slide along said rod in accordance w;th the position of said traversing guide to increase the angle of the arc of contact of the thread with said roll with the increase in diameter of said mass of thread, and means extending along said roll adapted to engage the thread to vary the length of said are of contact as the thread is shifted thereover by said movable guide.

' HARRY S. TOOLE.

JAMES W. MITCHELL.