US1984405A - Machine for applying webs to wire and the like - Google Patents

Description

Dec. 18, 1934. c. B. FANTONE ETAL MACHINE FOR APPLYING WEBS TO WIRE AND THE LIKE Filed Oct. 24, 1933 4 $he t $h t 1 INVENTORS Charles 5- Fan #0" Rzubzn M- Jameson. Q h1 ATTO NEY5.

Dec. 18, 1934.

C. B FANTONE ET AL MACHINE FOR APPLYING WEBS TO WIRE AND THE LIKE Filed Oct, 24, 1953 4 Sheet -sh t 2 INVENTORS Char/e5 B-F' iv zuben M- Jameson- W ATT RNEYS.

Dec. 18, 1934. c. a. FANTONE ET AL- MACHINE F'OR APPLYING WEBS TO WIRE AND THE LIKE Filed Oct. 24, 1953 4 She9ts$heet 3 INVENTOR Char/25 B-Far1 "0" b n M. Tdrr150fl as M AT RNEY5.-

Dec. 18, 1934. c. B. FANTONE ET AL MACHINE FOR APPLYING WEBS TO WIRE AND THE LIKE Filed Oct. '24, 1955 4 Sheets-Sheet 4 INVENTORS Charles 8- Fgn Y kbzn M. .Tamrson.

Patented Dec. 18, 1934 UNITED STATES PATENT OFFICE MACHINE FOR APPLYING WEBS T WIRE AND THE LIKE tion of New Jersey Application October 24, 1933, Serial No. 694,944

8 Claims.

This invention relates in general to improvements in machines for applying a web in the form of a strip or tape, thread, wire, and the like, to the surface of a strand in the form of a wire, cord, thread and the like.

the strand under proper tension.

Another important object of this invention is to provide take-up mechanism for compensating for the increasing diameter of the reel of finished product as it is collected thereon and which, throughout the operation, maintains a uniform tension on the strand going to the takeup reel.

A still further object of the invention is to provide a machine by means of which the ten sion on the strand may be varied between side limits in accordance with variations in strand sizes. a

A still further object of the 'invention is to provide in a machine of this type independently operated means for causing longitudinal movement of the strand and independently operated means for applying the web around the strand, each of which means may be controlled in its speed of operation with respect to the other.

These and many other objects, as will appear from the following disclosure are secured by means of the invention, one form of which has been illustrated in the attached drawings.

--This invention resides substantially in the combination, construction, arrangement and relative location of parts, all as will be set forth in full detail in the following description.

The subject matter of this application is related to the subject matter of our-copending ap- No. 634,350, filed September 22,

Fig. 4 is an enlarged cross sectional view of a portion of the mechanism taken on the line 44 of Fig. 2.

Fig. 5 is a similar cross sectional view taken at right angles to the view of Fig. 4.

- Fig. 6 is a top plan view of the same mechanism showing the casing in cross sectional view on a plane near the top thereof.

Fig. '7 is a cross sectional view taken on the line 7-'7 of Fig. 6. V

The present invention is particularly concerned with a mechanism for applying to a strand, such as a wire, a cord and the like, a protecting or insulating layer in the form of a web or strip made of any desired material and applied to the strand in the form of a spiral orhelical wrap in which the adjacent turns of the wrap are preferably but not" necessarily slightly overlapping. With a machine of this invention the web is wrapped around the wire as it is advancing longitudinally of its length. The web to be applied may be of any suitable material such as paper insulating webs, fCellophane, and the like.

In any practical machine for this purpose, which is to be adapted for application of webs to strands of varying sizes, it is important to apply the proper tension to the strand at various points in its path of travel through the machine. The first region of tension is that under which the wire is placed in its points of support between the supply reel and the capstan wheel which is pulling the wire from the supply'reel. The next important region of tension under which the strand is placed is that between the capstan wheel and. the take-up reel. As is obvious, the finished product, in being coiled up on a reel which is power driven, continuously builds up the diameter of the resulting coil. Since the strand is being delivered at a constant rate from the capstan wheel, it is obvious that the increasing diameter of the reel is resulting in a tendency to require the wire to be fed at increasing speeds. An im- 'portant object of this invention is to provide mechanism for compensating for this tendency and for maintaining, at the same time, a substantially constant tension on the wire being supplied to the take-up reel. An additional factor is involved in the fact that a machine of this type is normally called upon to apply webs orinsulating coverings or cords of a wide range of gauges. The machine of this invention successfully accomplishes the above object on copper wires, for example, ranging in sizes from 10 to 45 gauge B and S.

These and many other features will be apparselves form any part of this invention and, indeed,

ent from the following detailed description including those of control of relative speeds between the movement of the strand and the application of the web, the distribution of the finished product on the reel, the application of insulating varnishes and/or adhesives both under and over a the web as applied to the strand, and the quick drying of the adhesive, varnish, or lacquer after application.

The machine comprises a vertical standard or column 1 which hasbeen illustrated in the form of an I beam to the upper and lower ends of which are secured thecross members 2 and 3, respectively. Extending between the cross members are the side bracing members 4. Mounted on the upper end of the column is a motive device illustrated in the form of an electric motor which is connected in any suitable way through the gear. box 6 with the capstan wheel 7. Supported on the standard below the capstan wheel in any suitable manner is an electric heating device 8 which has been illustrated diagrammatically. Mounted directly below the heating device in alignment therewith is the lacquer or adhesive applying device 9 which likewise has been illustrated diagrammatically. At 10 is a protecting and guiding tube mounted in longitudinal alignment with the devices 8 and 9. Supported on the column by a suitably formed bracket is a motive device illustrated in the form of an electric motor which has directly connected to the shaft thereof the serving head 11 which applies the web in the form of a spiral or helical wrap to the outer surface of the strand which is illustrated at W. As is apparent, the wire passes directly through the serving head and the shaft of the motor 12 which parts are mounted in longitudinal alignment with the parts 8, 9 and 10. Mounted below the motor and supported on a suitable bracket 14 is a second lacquer or adhesive applying device 13. Supported directly thereunder on the bracket 14 is a guide wheel 15. It might be noted that the devices 8, 9, 11, 12v and 13 do not by themare known in several forms in the prior art. The details of construction of a suitable form of these devices with the exception of the devices 9 and 13 will be found in our above-mentioned co pendin'g application.

Supported near the bottom on the rear of the column 1 by means of brackets 18 is the supply reel 16 which is journalled in the bearing 17. At 17a is diagrammatically illustrated a brake by means of which the desired resistanceto movement of the reel may be controlled depending upon the size of wire orstrand being processed.

Mounted on the transverse guide 23 is a longitudinallymovable crosshead 22 which supports a bracket 21 in which the rod 20 is longitudinally adjustable. Journalled on the outer end of the rod 20 is a guide pulley 19. The shaft 24 upon which the take-up reel 26 is mounted is journalled on the side member 4 at 25 and passes through bearings in the casing 27. Secured to the righthand end of shaft 24 is a worm wheel 28 which meshes with a worm 29 mounted directly on the shaft of motor 30.

Reference to Figs. 4 to '7 inclusive; at 31 is a pivot mounted on the cross head 22 which pivotally supports a block'which has sliding engagement with the lever 32. This lever is pivotally supported on a stud 44 and is provided with a depending portion 32a. The ends of the lever 32 and 32a are slotted to permit sliding engagement with the cooperating members. Shaft 24 is provided with a worm 38 which meshes with the worm wheel 39 secured to a shaft 34 which is journalled in casing 27 and bearing bracket 43. Secured to the shaft 34 is a heart-shaped cam 33 which engages a pair of rollers 35 mounted on a cross slide 36 which is slidably supported in the guide members 37. These guide members are attached to a support 36:: within the casing 27.

The stud 44 is secured to ablock 40 which is threadedlymounted upon an adjustable spindle 42 which is journalled, as is clear from Fig. 5, in the casing 2'7. The block 40 is mounted for vertical, sliding movement in the guide member 41. The cross slide 36 is provided with an extension 45 which slidably engages the slot in arm 32a.

At is a conduit extending from the torque -motor 30 through which the control wires are carried to the control box 51 mounted on the machine; At 52 are diagrammatically illustrated the circuit wires which may be connected to any suitable power source. 53 is the main circuit switch. Wires 54 extend from this switch to the stator windings 30a of the torque motor 80 (see Fig. 3). The wires 55 extend from the rotor windings 30b of the torque motor 30 to a suitable rheostat 56 by means of which the resistance of the rotor circuit may be varied.

In the operation of this machine, the wire to be wrapped'is fed from the supply reel around a guide wheel 15' up through the adhesive applying guide wheel 19 of the distributing device and thence on to the take-up reel 26. Motor 5 is then set into operation. The rotation of motor 5 causes the rotation of capstan wheel '7 through the gears in the gear box 6 at the proper speed. The wire being wound several times around the capstan wheel is pulled upwardly through all of the devicesand from the supply reel. The torque motor 30 is in operation so as to drive the shaft 24 upon which the take-up reel is mounted. Shaft 24 is driven through worm 29 and worm wheel 28. The force exerted by the torque motor 30 may be accurately adjusted by means of rheostat 56 so that for the particular wire size being processed a proper tension may be placed there on in relation to the rate of feed of the wire from the capstan wheel. Motor 12 is then set in operation so that the web is applied thereto, in

plication of the web and to accurately control the overlap of adjacent turns.

The operation of motor 30 also operates the distributing device through worm 38 and'vvOrm wheel 39. The rotation of worm wheel 39 causes the rotation of the heart cam 33 with the result that the cross'slide 36 oscillates back and forth causing oscillation of lever 32 3211 on its pivot stud 44. The oscillation of this lever effects reciprooation of the head 22 and the distributing mechanism 20, 21 and 19 mounted thereon. The

rate of movement of this apparatus is varied by means of the adjusting screw 42 which vertically shifts the block 40 which pivotally supports the stud 44. Obviously, by raisingand lowering this finished strand is wrapped mechanism, the effect of the uniform reciprocation of the cross head may be varied on the lever 32-32a to vary the length of the path of reciprocation of the member 22. Thismechanism thus permits of adjustment of the distributor so that the finished product may be applied in uniform layers to reels of different lengths.

The use of a torque motor for operating the take-up reel embodies a highly important feature of this invention. Obviously, as the. finished product is coiled up on the reel, the coil increases in diameter. This naturally requires a more rapid feed of the finished product to the reel for a constant speed of rotation of the take-up reel. However, with the present structure employing a torque motor, the rotor thereof may slip with respect to the revolving field thereof and at the same time maintain a uniform tension on the wire without in any way interfering with the operation of any part of the apparatus. By varying the load in the rotor circuit through the agency of the rheostat 56, the proper tension may be applied to the finished product coming from the capstan wheel regardless of wire size. Likewise, by adjusting the brake 170 on the supply reel, the proper tension may be placed upon the wire between the supply reel and the capstan wheel.

Since this machine is adapted for wrapping a wide range of strand sizes, it is desirable that entire reliance should not be placed'upon the torque motor for applying the proper tension to the finished product for all sizes in this range. It is proposed, therefore, in accordance with this invention, to in effect divide the entire size range into a plurality of smaller size ranges. For'processing wires within these smaller size ranges it is desirable to change the worm wheel 28 and the worm .29 to give different speed ratios. Thus, it

these changes to secure the most efiicient operation. As illustrated in Fig. 1, the casing 2'7 is constructed with an easily removable cover plate 2'7 adjacent these gears to permit of easy access to the gears 28 and 29. v

From the above description, it will be apparent that our invention resides in certain features of construction and operation which may be accomplished by apparatus of other physical forms. We do not, therefore, desire tobe strictly limited to the disclosure as given for purposes of illustration, but rather to the scope of. the appended claims.

What we seek to secure by United States Letters Patent is: i

1. In a strand covering 'machine thecombination comprising a strand supply reel, a motor driven capstan wheel for drawing the strand I from the supply reel, meansinterposed between the two for applying a-web around the strand', a take-up reel, and a motor directly connected theretov for rotating the take-up reel'so that" the thereon under uniform tension as the coil on the reel increases in diameter. r

2. In a machine of the type described, the corn= bination comprising a rotatably supported strand supply reel, a"rotatably supported motor driven,

capstan wheel, means interposed therebetween .for applying a helically wrapped web around the strand in its movement between the supply reel and the capstan wheel, a take-up reel, and a second motor for driving it and means connected therewith for distributing the finished product in uniform layers onthe reel.

3. In a machine of the type described, the combination comprising a'rotatably supported strand supply reel, 2. rotatably supportedmotor driven capstan wheel, means interposed therebetween for applying a helically wrapped web around the strand in its movement between the supply reel ,and the capstan wheel, a motor driven take-up reel, and means connected therewith for distributing the finished product in uniform layers on the reel, the means for driving the take-up reel comprising an adjustable torque motor, said motors and connected parts being mechanically independent.

4'. In a strand covering machine the combination comprising a strand supply reel, a first motor for driving the capstan wheel for drawing the strand from the supply reel, means interposed between the two for applying a web around the strand, a take-up reel, means for rotating the take up reel under constant tension, and an induction motor for driving the take-up reel.

5. In a device as described, the combination comprising a support, a strand supply reel mounted thereon, a first motor for driving the capstan wheel, a second motor for driving the serving head interposed between the supply reel and the capstan wheel for applying a web around the strand, a rotatably supported take-up reel and a third motor for rotating the take-up reel at a uniform speed.

6. In a device as described, the combination comprising a support, a strand supply reel mounthelically wrapped ed thcreon,'a first electric motor for driving the capstan wheel, a second electric motor for drivis within the scope of this invention to make ing the serving head interposed between the supply reel and the capstan wheel for applying a helically wrapped web around the strand, a rotatably supported take-up reel, a third electric motor for rotating the take-up reel at a uniform speed, and adjustable means driven by-the motor which drives the take-up reel for distributing I the finishedproduct to the take-up reel in uniformlayers.

7. In a machine for wrapping a-thin web around a strand in spiral overlapping portions, the com- .bination comprising astrand supply reel, a capstan wheel for drawing the strand from the supply reel, an electric motor operatively connected to the capstan wheel, means interposed between the two'for applying the web around the strand, 'a take-up reel and another electric motor for rotating the take-up reel under constant tension.

8. In a machine as described for applying thin easily destructible webs around overlapping turns, the combination comprising a web around the strand, -a take-up reel, and a second. motor for rotating the take-up reel at a a core in spiral constant-speed while winding the finished strand under uniform tension;

CHARLES B. em. REUBEN M. JAMESON.

6o strand supplyreel,,a motor driven capstan wheel drawing the strand from the supply reel,

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