US801287A

US801287A - Machine for taping coils.

Info

Publication number: US801287A
Application number: US10316402A
Authority: US
Inventors: George P Whittlesey
Original assignee: General Electric Co
Current assignee: General Electric Co
Priority date: 1902-04-16
Filing date: 1902-04-16
Publication date: 1905-10-10
Anticipated expiration: 1922-10-10

Description

PATENTED OCT. 10, 1905.

G. P. WHITTLESEY. MACHINE FOR TAPING GOILS.

APPLICATION FILED APRHIB, 1902.

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Inventor: George P (0h Lttbese zg 5 Mafia (DLtnesses.

H btgu No. 801,287. PATENTED OCT. 10, 1905.

G. P. WHITTLESEY. I MACHINE FOR TAPING GOILS. .f.

APPLICATION FILED APR.16. 1902.

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No. 801,287. PATENTED OCT. 10, 1905. G. P. WHITTLESEYL MACHINE FOR TAPING GOILS.

APPLICATION mum APRJG, 1902.

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No. 801,287. .PATENTED OCT. 10, 1905.

G. P. WHITTLESEY. MACHINE FOR TAPING GOILS.

urmoA'non FILED APR. 16, 1902.

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lhyentorr George? @httctesey UNITED STATES PATENT OFFICE.

GEORGE P. WHITTLESEY, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEIV YORK.

MACHINE FOR TAPING COILS- Specification of Letters Patent.

Patented Oct. 10, 1905.

To all whmn it may concern;

Be it known that I, GEORGE P.WH1TTLEsEY, a citizen of the United States, residing at IVashington, in the District of Columbia, have invented certain new and useful Improvements in Machines for Taping Coils, of which the following is a specification.

This invention relates to mechanism for winding insulating-tape on the coils of electrical apparatus, such as transformers and gen- Its ob ect is to accomplish by autoerators. matic machinery what has heretofore been done generally by hand. In making coils of the kind mentioned it is customary to wind an insulated conductor of either round or rectangular cross-section into the desired shape of coil, such as a cylinder or a rectangle with rounded corners. wound with tape, each turn partly overlapping the previous one. After winding, a coating of shellac or other insulation is applied and then another layer of tape is wound on. This operation is repeated as often as may be tholught necessary to thoroughly insulate the CO1 My invention consists of a table or frame for supporting the coil, a tape-winder or bobbin-carrier arranged at a certain point in said frame, and means for carrying the coil past the winder. is made for turning them at the corners. For cylindrical coils the winder is made radially adjustable to adapt the machine to different sizes of coils. The winder and the coil-carrier are independently controllable by clutches or otherwise, so that either can be stopped and started at will without interfering with the other.

In the accompanying drawings, Figure 1 is a front elevation of a machine for taping rectangular coils. Fig. 2- is a top plan view of the same. Fig. 3 is an end elevation of the same, showing a coil in section. Fig. A is a perspective view of a machine for winding cylindrical coils. Fig. 5 is a sectional elevation on the line 5 5, Fig. 2. Fig. 6 is a section on the line 6 6, Fig. 5. Fig. 7 is a plan view of the controlling-clutches and their operating devices. Fig. 8 is a diagram showing the operation of the machine.

Referring first to Figs. 1, 2, and 3, it will be seen that on suitable standards or legs 1 is supported a frame 2, having a straight front This coil is then carefully For rectangular coils provision ed ge'and asemicircular rear edge. This frame is preferably inclined downwardly from back to front at an angle of about twenty degrees, more or less, to the horizontal, for a purpose hereinafter explained. At the center of the front is supported a rotatable annular bobbincarrier consisting of a ring 3, standing in a vertical plane and having a hinged or removable segment 4. The bobbin-carrier is held upright by three rollers 5 6 7, the first journaled in an arm 8, fastened to the front of the frame and overhanging the bobbin-carrier, while the others are journaled in bearings secured to the under side of the frame 2. The edge of the bobbin-carrier is toothed, and one of the rollers, as 7, is also toothed, this constituting a pinion by means of which thebobbin-carrier can be revolved in its own plans. On one side of the bobbin-carrier is a reel or bobbin 9, on which the supply of tape is wound.

Along the front part of the machine extend two rectilinearly-movable coil-carriers, each terminating near the bobbin-carrier. The coil carriers consist, preferably, of endless belts 10, running over a series of idle supporting-rollers 11 and driven by one of the end rollers, over which the belt passes, both belts running in the same direction say to the right in Figs. 1 and 2. Suitable mechanism is provided for driving each belt, preferably comprising a worm-gear 12 on the shaft of one of the driving-rollers meshing with a worm 13 on a shaft 14, on which is a pulley 15, connected by a belt 16 with a driving-pulley 17 on the main shaft 18, which runs parallel with the front of the machine in suitable bearings secured to the standards 1. Power is conveyed to the main shaft by a pulley 19 and belt 20 from any convenient source, such as an electric motor 21. A clutch 22, operated by a rock-shaft 23 and lever 2A, enables theoperator to start and stop the coil-carrying belts at will.

In the semicircular rear portion of the frame are journaled a plurality of rollers 25, arranged radially to that point of the machine where the bobbin-carrier is located. These rollers are for the purpose of turning a rectangular coil when a corner is reached. The rollers are shown as cylindrical; but they may be coned, if desired, as indicated by the dotted lines in Fig. 2. Each roller is geared by bevel-gears 26 at its outer end to a short upright shaft carrying a sprocket-wheel 27 at its lower end. A chain belt 28 runs over all the sprockets, so that all the rollers move simultaneously. On the shaft of one of the sprockets is a bevelgear 29, meshing with a pinion 30 on an upright shaft 31, which has a large bevel gearwheel 32, meshing with a pinion 33, loose on the main shaft 18. A clutch 34 connects and disconnects the pinion and shaft and is operated by the lever 24:, being connected with the rock-shaft 23 by a rock-arm 35 and rod 86. The two clutches 22 and 3A are so arranged that each one will be thrown out when the other is thrown in, so that the carrier-belts 10 will not be operated when the radial rollers are rotating, and vice versa.

The main shaft may be connected with the bobbin-carrier by means of a belt 37, running over a pulley 38 on the same shaft as the pinion 7. A clutch 39 and lever 40 control this belt and the operation of the bobbin-carrier independently of the movements of the coilcarriers.

Adjacent to each coil-carrier belt 10 is a set of guide-rolls 4L1, journaled in arms A2, projecting from plates 42, which are adjustable on the frame 2 transverse to the line of movement of the belts 10, as by means of slots 43 and clamping-bolts 4 1.

lVhen a coil 45 is placed on the machine, its weight causes it to slide down against the guide-rolls, which are so adjusted that the coils passes centrally through the bobbin-carrier, the removable segment 4; permitting the coil to be inserted edgewise into said bobbincarrier. On starting the machine the bobbincarrier revolves, winding the tape from-the bobbin onto the coil as the latter is carried slowly along by the carrier-belts 10. The machine must be so timed that each turn of tape will properly overlap the edge of the preceding turn. hen the rounded corner of the rectangular coil is reached, the carrierbelts are stopped and the radial rollers are set in operation and act to swing the coil in its own plane, turning on the corner as a center, the taping still going on as the coil swings, Fig. 8. \Vhen the corner has been turned and the next straight side of the coil comes against the guide-rolls, the radial rollers are stopped and the carrier-belts started again.

It will be seen that the diameter of the bobbin-carrier can readily be made sufficient to permit it to work on the largest coils which the machine is capable of handling.

in the modified machine shown in Fig. 4 the coil-carrier is composed entirely of radial rollers 46, whose inner ends are provided with bevel-pinions 47, meshing with a common bevel-gear 18 on an upright shaft 49, driven by a worm-gear and worm 51, which receives motion by belt 52 from the main shaft The bobbin 5a is carried on two parallel endless upright chain belts 55, running over sprocket-wheels 56, journaled in a carriage 57, which slides in ways 58 radial to the central driving-shaft 49. Small star-wheels 59 on a transverse shaft engage with the chains and cause them to run at the same speed. One of the lower sprocket-wheels has its shaft extended to carry a belt-rmlley 60, over which runs a belt 61, driven by the main shaft. A belt-tightener 62 keeps the belt taut and permits the carriage to be moved back and forth in its ways without disengaging the belt. On the frame 63 are radial guides 64%, in which are adjustably mounted upright guide-rolls 65. In operation the cylindrical coil is placed on the rollers with its axis upright and concentric with the central shaft, and the guiderolls are adjusted to keep it in this position. A link in each chain belt is then opened and both chains are passed through the coil and the ends reconnected, the carriage having been properly moved along the ways to bring the coil midway between the two sides of each chain. The machine is then started and the radial rolls rotate the coil at the proper speed to insure the lapping of the tape as it is laid. on by the bobbin in its travel up and down outside and inside the coil.

In both modifications it may not be possible always to tape the entire coil. since at the end or place where the leads come out from the coil the tape must be carried under them, because as a rule they must not be bent aside for fear of injuring the insulation. This part of the coil, therefore, must frequently be wound by hand; but all other parts can be more quickly and evenly wound by the machine.

it is evident that endless chain belts might be substituted for the annular bobbin-carrier shown in Figs. 1, 2, and 3 and that either this or the annular one might be mounted on an adjustable carriage, as in Fig. t.

lVhat I claim as new, and desire to secure by Letters Patent of the United States, is

1. A coil-taping machine, comprisinga bobbin-carrier, an inclined support for the coil, whereby the latter tends to move sidewise under the action of gravity, and means for engaging said coil at the lowerside and moving it past said bobbin-carrier.

2. A coil-taping machine, comprising an endless bobbin-carrier, means for engaging one side of said coil and moving it past said bobbin-carrier, and means for independently controlling the movements of the bobbin-carrier and coil.

3. A coil-taping machine, comprising an endless bobbin-carrier, means for engaging one side of said coil and moving it through said carrier, and guide-rolls for determining the position of the coil with reference to said carrier.

at. A coil-taping machine, comprising an endless bobbin-carrier, and coil-carrying rollers radial to said bobbin-carrier.

5. A coil-taping machine, comprising an endless bobbin-carrier, coil-carrying rollers radial to said bobbin-carrier, and means for driving said rollers simultaneously.

6. A coil-taping machine, comprising an annular bobbin-carrier, means for revolving it in a given plane, and coil-carriers moving rectilinearly and transversely to said plane.

7. A coil -taping machine, comprising an endless bobbin-carrier, means for feeding a rectangular coil through said carrier in a rectilinear direction, and means for turning the coil at the corners.

8. A coil-taping machine, comprising an annular bobbin-carrier, means for revolving it in a given uprightplane, rectilinearly-moving coil-carriers operating transverse to said plane, and radial coil-carriers operating in lines concentric with the point of taping.

9. A coil -taping machine, comprising an endless bobbin-carrier, means for feeding a rectangular coil through said carrierin a rectilinear direction, means for turning the coil at the corners, and means for operating said tWo kinds of coil-carriers at different times.

10. A coil-taping machine, comprising an endless bobbin-carrier, an inclined table for supporting the coil, and guide-rolls against which the coil rests.

11. A coil-taping machine, comprising an endless bobbin-carrier, coil-carrying devices adjacent to said bobbin carrier, and guiderolls adjustable transversely to the line of travel of the coil. a

12. A coil-taping machine, comprising an endless bobbin-carrier, an inclined table, coilcarrying belts adjacent to said bobbin-carrier, radial coil-carrying rolls, sprocket-Wheels geared to said rolls, and a chain connecting said sprocket-Wheels.

In witness whereof I have hereunto set my hand this 15th day of April, 1902.

GEO. P. WHITTLESEY.

Witnesses:

BENJAMIN B. HULL, HELEN ORFORD.