US2387570A

US2387570A - Distributing control device

Info

Publication number: US2387570A
Application number: US529585A
Authority: US
Inventors: Waldemar C Ewaldson
Original assignee: Western Electric Co Inc
Current assignee: AT&T Corp
Priority date: 1944-04-05
Filing date: 1944-04-05
Publication date: 1945-10-23
Anticipated expiration: 1962-10-23

Description

Oct. 23, 1945 w. cl EWALDSON 2 0 DISTRIBUTING CONTROL DEVICE Filed April 5, 1944 2 Sheets-Sheet l INVENTOR w C. EWALDSON 6,! m A TTORNEV Oct; 23, 1945.

w. c. EWALDSON DISTRIBUTiNG CONTROL DEVICE A 2 Sheecs-Sheet 2 I Filed April 5, 1944 i aa z INVENTOR W C.- EWALDSON ATTORNEY Patented Oct. 23, 1945 DISTRIBUTING CONTROL DEVICE Waldemar C. Ewaldson, Millington, N. J., assignor to Western Electric Company, Incorporated, New York, N Y., a corporation of New York Application April 5, 1944, Serial No. 529,585

7. Claims.

Thi invention relates to a distributing control device, particularly for toroidal coil winding apparatus.

In the manufacture of toroidal coils, the wires to be wound upon the cores thereof are required to be of given diameters within fine limits, but the existence of variations in the diameters of the wires, although small, may cause variations in the locations of the outer convolutions of the wires on the cores. It is important that these outer convolutions lie closely adjacent so that during the finishing operations of the coils, the outer convolutions will form a substantially continuous surface.

An object of the invention is to provide a distributor for winding apparatus which is simple in structure and highly variable to compensate for .variations in the size of material being distributed. I

With this and other objects in view, the invention comprises a distributing mechanism in a winding apparatus including actuable means, interposed between the driving means and the work support, to cause variations in the movement of the latter for the laying of closely adjacent convolutions of strand material on the work.

Other objects and advantages will be apparent from the following detailed description when considered in conjunction with ing drawings, wherein Fig. 1 is a front elevational view of the distributing mechanism shown in a winding appara tus;

Fig. 2 is a top plan view of the structure shown in Fig. 1, portions thereof being broken away;

Fig. 3is an enlarged vertical sectional View of the distributing mechanism, and

Fig. 4 is an enlarged fragmentary detail view taken substantially along the line 4-4 of Fig. 2.

the accompany- Referring now tothe drawings, particularly Figs. land 2, a material serving head is indicated generally at I!) and includes a conventional annular bobbin or material support H supported by rollers 12. The rollers l2 are mountedupon spindles M carried in bearing portions of one side ofa supporting bracket IS. A driving ring I 6, having teeth 11 formed in its inner periphery, is supported by a plurality of gears 13 mounted upon spindles IS, the latter being carried in bearing portions of the other side of the bracket IS. A feeding roll or sheave 28, carried by the drivin ring l6, receives a wire or strand material 2| from the bobbin H and directs it to a core 22 about which the material is wound. The low ermost spindle l9 extends laterally as shown in Fig. 2, where it is supported by a bearing 25 in a bracket 26 and has a sprocket 2! mounted thereon to be driven by a chain 28 from a suitable power means (not shown). Through the aid of a hand wheel 29, the spindle may be rotatedifor manually positioning the ring l6 and. the bobbin I 1 relative to the core 22.

The core 22 is held in a unit 30 which includes a fixed support 3! and a movable clamp 32 actuable by a threaded element 33 relative to a holding screw 34, to cause clamping of the core or articles between the support 3| and the clamp 32. The 'unit30 is mounted upon a, flange 35 fixed to or formed integral with a rod 36 which is disposed in a chuck 37. The chuck 31 is mounted upon an element 38, which extends laterally and rests upon a bearing member 39, the latter having a ball race 40 adjacent its periphery for receiving ball-like bearing members positioned to ride upon a companion member 42, the latter being mounted upon a base 43.

A spindle extends vertically through an aperture 46 in the base 43 and is fixed against rotation by the aid of a pin 41. The spindle also extends through apertures in the

bearing members

42 and 39 as well as the element 38. A bearing v48 connects the element 38 and the upper bearing member 39 for rotation upon the spindle 45, the element 38 extending to the left of the spindle, as shown in Fig. 3, to support the chuck 31. A plate or supporting bracket 50, of the contour illustrated in Fig. 2, is disposed upon theelement 38 and fixed thereto, as at 5|. The bracket 50 is also apertured for the spindle 45 and isadditionally secured to the element 38 as well as the upper bearing member 39 through the'aid of a screw 52. A sleeve 54 is disposed upon the upper end of the spindle 45 for rotation thereon. A worm gear 55 is disposed concentric with the sleeve 54 and secured thereto through the aid. of a c amp 5 the sleeve 54 being held against displacement upon the spindle through the aid of lock nuts 51. .Another worm gear '58, identical with the gear 55, is disposed therebeneath upon the sleeve 54 and keyed thereto as at 59. A driving shaft (Figs. 1, 2 and 4) is driven by any suitable power means (not shown) in synchronism with the driving means for the chain 28, to cause operation of the serving head In to serve the material 2| at a given rate upon the core 2?. during movement of the core forthe distribution of the material there on. A worm 62, mounted upon the shaft 60 and driven thereby, interengages the worm gear 55 to cause rotation thereof.

The bracket 50 has a bearing member 63 mounted thereon for rotatably supporting a shaft v64 (Fig. 4). A worm 65 is fixedly mounted upon the shaftv 64 and interengages the worm gear 58. A bevelled gear 66, fixedly mounted upon the other end of the shaft 64, interengages a, similar bevelled gear 61 which is mounted upon one end of a shaft 68,, the latter being journalled in a bearing 69 of a bracket 16. The bracket H! is fixedly mounted, as at H, upon the bracket '56. A hand wheel 12 is fixedly mounted upon the other end of the shaft 68 for manual rotation of the shaft.

Upon considering the operation of the apparatus, let it be assumed that the bobbin II is filled with the desired amount of material 2!, which in the present instancei's an insulated wire of a suitable conductive material, and that the article, namley the core 22, is supported in the work holder or unit 30. If the diameter of the insulated wir is of a given diameter, the driving mechanism (not shown) for the shaft 60 and the chain '23 is adjusted so that if the material throughout'its lengthis of thegiven diameter, the core will be moved .at a speed relative to the head so that each portion of each convolution of the Wire upon the outer periphery of the core will be in close engagement with each other. The disitributing "mechanism is such that during the travel of 'the'rotatin'g portions, namelythe bobbin 1! and the driving 'ring l6, through one complete cycle, the core willbe moved the given distance about the spindle '45, the axis of which is at the "center line :of the article. This movement is brought about through the rotation of the shaft -60 to rotate the worm gear 55 through its worm '62, to rotate the sleeve 54 and with it the worm 'gear56. Th'e'worm"65,-unless rotated, that is, in its normal inactive position, provides a positive connection between the worm gear 58 and the bracket 50, causing the bracket, together with the element 38 and the unit supported thereby, "with the article or core -22, to move at a given rate of speed about the' spindle 45.

The laying of the material on thecore is observed 'by the operator, and if the outer portions of the convolutions should tend to pile up, the operator may instantly vary the position of the article with respect to the serving head through the rotation of the hand wheel 12, its shaft 68, 'and,thr'ough'theaid of the bevelled gears 61 and -66, to cause rotation of the worm 65 to advance the movement of "the unit 30 to eliminate the existence of this condition. If the portions of the "outer convolutions of "the material should appear to be 'spacedapart and not disposed c'loselyadja- 'cent,the movement of the unit 30 'withthe core or article'22 may be retarded by movementof the hand wheel 12 in "the opposite direction to move the *unit '36 with the article relative to the worm gear 5'8' 'so'tha't these convolutions will be more closely positioned with respect to each other. All of 'these variations may be brought about with- 'out stopping the operation of the apparatus or without varying the setting thereof 'for the type of material or wire being employed. As previously described, the material or insulated wire must be if a given diameter within certain limits, 'these'limi'ts'b'eing, for eXampl'e,'plus or minus .003 of'aniinch. These limits are 'very small, but it -is apparent'that if the dimensions of the wire should includeo'ne 'or 'theother'of these 1imits,'the multiplication of these limits over several convolutionsof the materialwould eventually cause them to pileup or to be spaced apart. This is overcome'through the aid of the'varyin'g means embodied in the distributing mechanism of the apparatus.

Although specific improvements of the invention have been shown and described, it will be understood that they are but illustrative and that variou modifications may be made therein without departing from the scope and spirit of this invention as defined by the appended claims.

What is claimed is: I

'1. 'In an apparatus for winding material on a circular article including a unit to support the article and a rotatable serving head for the material, driving means to rotate the serving head at a constant speed to cause laying of convolue tions of the material on the article, means to support the unit for rotary movement about an axis in alignment with the center line of the artile, a"variable element carried by the unit, a member operatively connected to the element and rotatable about the axis, driving means operable in synchronism with the driving means for the serving head and including the element and the member to move the unit and the article about the said axis and center line to cause the portions of the convolutions. of the material at the outer periphery of the article to successively lay "at predetermined positions relative Ito each other, andmeans to actuate "th'eelement'to vary the said driving means for the unit to vary the said positions of thepor'tion's 'of the material while the speed of'the serving head remains c'onstant.

2. In an apparatus for winding materialon -'a circular article including a unit to support the article and a rotatable serving head 'for the material, driving means -to rotate the serving head at a constant speed to cause laying 'of'conv'o'lu- -tions'of the material on the article, means to sup'} port the unit for rotary movement about anaxis in alignment with the center lineof the article, a variable element carried'by' the unit, a member operatively connected to the element and rotat- Table about the axis, driving means operable in 'synchronism withthe driving means fo'r the serving head and including the element and the member to move the unit and the article about the said axis and center 'lineto cause the portions of the convolutions of the material 'at the outer peripher of "the article to successively lay "at predetermined positions relative to each other, and means to actuate'the element relative to the member 'to retard the said 'driv'ingm'ea'n's for the unit to cause positioning of the said portions of the material closer together while the speed of the serving head remains constant.

3. In an apparatus for winding material on a circular article including a unit to support :the article and a rotatable serving head for the Tinateria'l, driving means to rotate the serving head at a constant speed to cause laying 'of convolutions of the material on the-article,=means to support the unit for rotary movement about an axis :in alignment with the center line .of the article, a variable element carried by the unit, a member operatively connected to the element and retatable about the axis, driving means operable in synchronism with the driving means for the serving head and including the element and the member to move the 'unit and the article about the said-axis and center line'to 'cause the portions of the convolutions of the material at the outer peripheryof the article to successively 'lay at predetermined positions relative to each other, and means to actuate the element relative to the member to increase the speed of movement =of the unit to cause positioning of the said portions of the material at more widely spaced positions while the speed of the serving head remains constant.

4. In an apparatus for winding material on a circular article including a unit to support the article and a rotatable serving head for the material, driving means to rotate the serving head at a constant speed to cause laying of convolutions of the materal on the article, means to support the unit for rotary movement about an axis in alignment with the center line of the article, a member rotated on the axis at a constant speed, a variable element operatively connecting the member to the unit to normally cause rotation of the unit and the article at the same speed as the member is rotated, means to rotate the member, and means to actuate the element relative to the member to vary the speed of the unit to vary the laying of the convolutions of the material on the article while the speed of the serving head remains constant.

5. In an apparatus for winding material on a circular article including a unit to support the article and a rotatable serving head for the material, driving means to rotate the serving head at a constant speed to cause laying of convolutions of the material on the article, means to support the unit for rotar movement about an axis in alignment with the center line of the article, a member rotated on the axis at a constant speed, a variable element operatively connecting the member to the unit to normally cause rotation of the unit and the article at the same speed as the member is rotated, means to rotate the member, and means to actuate the element relative to the member to retard the speed of the unit to cause positioning of the convolutions of the material closer together on the article while the speed of the serving head remains constant.

6. In an apparatus for winding material on a circular article including a unit to support the article and a rotatable serving head for the material, driving means to rotate the serving head at a constant speed to cause laying of convolutions of the material on the article, means to support the unit for rotary movement about an axis in alignment with the oenter'line of the article, a, member rotated on the axis at a constant speed, a variable element operatively connecting the member to the unit to normally cause rotation of the unit and the article at the same speed as the member is rotated, means to rotate the member, and means to actuate the element relative to the member to increase the speed of the units to cause positioning of the convolutions of the material farther apart on the article while the speed of the serving head remains constant.

7. In an apparatus for winding material on a circular article including a unit to support the article and a rotatable serving head for the material, driving means to rotate the serving head at a constant speed to cause laying of convolutions of the material on the article, means to support the unit for rotary movement about an axis in alignment with the center line of the article, a worm gear rotated on the axis at a constant speed, a worm operatively connecting the worm gear to the unit to normally cause rotation of the unit and the article at the same speed as the gear is rotated, means to rotate the gear, and means to rotate the worm to vary the speed of rotation of the unit to vary the laying of the oonvolutions of the material on the article while the speed of the serving head remains con-