US2489134A - Mandrel support - Google Patents

Description

Nov. 22, 1949 E. G. HILL 2,489,134

MANDREL SUPPORT Original Filed July 12, 1945 INVE TOR. f

ATTORNEYS Patented Nov. 22, 1949 MANDREL SUPPORT Earl G. Hill, Pulaski, Va., assignor to Textile Appliance Corporation, New York, N. Y., a corporation of New York Original application July 12, 1945, Serial No.

Divided and this application August 19, 1947, Serial No. 769,464

3 Claims, (Cl. 242-43) This invention relates to machines for winding packages of yarn, thread, etc., and is concerned more particularly with novel means for use in a winding machine for supporting the maninv ntion are illustrated in use in a drum windins machine of the cons ruction dis losed in the co-p nding application. Such a machine in, cludes a supporting structure made up of vertical drels for the tubes or cores, upon which the yarn 5 frame members and longitudinal members H is wound. The new mandrel supports are of simof suitable construction, A shaft 12 is mounted ple, inexpensive construction, and the mandrels in hearin s on the structure to extend lengthwise may be easily inserted in and removed from the of the latter and th shaft is provided at inter..- supports. Also the supports occupy little space in vals with conventional cork driving rolls 1.3,. The a direction lengthwise of the mandrel supported 10 shaft is oontinuously rotated by suitable means thereby, so that, when the supports are employed (not shown) A mandrel I4 is mounted for in a machine having a plurality of winding units tation opposite each .QQrk roll L3 and, prior to the in a line, the units may be placed closer together winding ope ation, .a tube 15 is slipped over the than would be possible if certain prior supports mandrel. The mandrel is provided withgudgeons were used. 115 5 t it en s and the gudseons re inserted in The new mandrel support is intended primarily the mandrel supports I1, I 8. for use in winding machines of the type, in which The mandrel supports I] are disposed at oppothe mandrel is rotated by a rotary member, such site ends of the machine and each such support as a driven cork roll, in constant contact with the includes a standard 1.9 mounted on the support.- suriace of the yarn package being produced, an ing structure at one side of shaft l2 and beyond example of such a machine being that disclosed the outer ends of the cork rolls It at the ends in my co-pending application, Serial No. 504,627, of the machine. At the upper end of its standfiled July 12, 1%5, now Patent No. 2,475,895, is an. is, each support I] is formed with a slot 2.0 sued July 12, 1949 of which this application is a in its side face, the slot extending downwardly division. The supports are mounted at opposite in a direction away from the shaft l2. The upper ends of each cork roll and each support includes end of the slot lies in a horizontal plane through a standard having a slot in one side face, the shaft and is closed by a wall 2!. The bottom slot extends transversely to the axis of the cork of the slot is closed by a vertical wall 22 and, roll and downwardly therefrom at a low angle. at the lower end of the slot, there is an entrance The bottom of the slot and its upper end are opening into the slot formed between the lower closed and, at the lower end of the slot, there is end of the top wall 23 of the slot a vertical an entrance opening into the slot through the wall 24 rising from the lower wall 25 of the slot top wall thereof. The support may be made by a and extending upwardly above the top wall 23,. casting operation and the supports, which are to lhe mandrel supports [8 lie between the and lie between a pair of winding units in a multiple supports H and opposite the spaces between ad.- unit machine, may be combined into one, such .l'acent cork rolls. supports 18 are .of the coma compound support having slots lyin back to pound type and each such support includes a back with their openings facing in opposite standard 2,6 formed at its upper end with a pair directions. of slots separated by a common bottom wall 21, For a better understanding of the invention the slots opening laterally in opposite directions reference may be had to the accompanying drawfrom that wall. The slots of support It extend ing, in which downwardly in a direction away irom the shaft [2 Fig. 1 is a plan view of a portion of a winding and have lower end walls similar to wall at and machine equipped with the new supports; entrance openings through the upper walls of Fig. 2 is a view of the machine in front .elethe slots at the lower ends thereof. The upper vation; ends of the .slots of support L8 are closed and lie Fig. 3 is a sectional view through a single winda horizontal plane through shaft l2, ing unit, on the line 3-3 of Fig. 4,; In order to place ,a mandrel with a tube there- Fig. 4 is a sectional view on the line 4-4 of on in position in .the supports, the guglgeons is Fi 3; o t a el re ins ed hrou h the entrance F 5 is a vi w in perspe t e sh wi t up r o n n nt t ower nds o th sl ts in a pair part of one mandrel support; and of mandrel supports at opposite ends of a cork Fig. 6 is a sectional view on the line 5-45 of roll. The mandrel and ,tube are then moved up- Fig. 1. w ly n the uppo ts to b ing t e u into In the drawing, the mandrel supports of the o ta t w the co k roll L3 In th mach ne illustrated, the mandrel is moved toward the cork roll by a frame, which comprises a plate 23 provided at its lower corners with brackets 29 pivotally attached at 30 to brackets 3| secured to the longitudinal frame members I I. At its upper end, the plate is provided with brackets 32 projecting toward the cork roll, and a roller 33 is mounted between brackets 32 in position to bear against the tube IE on the mandrel or the package being wound on the tube. Roller 33 is spaced from the adjacent face of plate 28 and a thread guiding rod 34 is mounted in brackets 35 on the outer face oi. plate 28.

A traverse bar 36 is mounted in suitable guides (not shown) on top of the longitudinal member II to extend parallel to shaft I2 and the bar is reciprocated endwise, during the operation of the machine, by means (not shown). Opposite each cork roll, the traverse bar 36 carries a pair of spaced brackets 31 and an arm 38 is pivotally mounted in each pair of brackets 31. For this purpose, the arm is formed at its lower end with a loop encircling a pin 39 having coned ends, which are receivable in openings in the brackets. The axis. about which arm 33 swings, is coincidental with the axis, about which plate 28 swings, so that, as the late swings outwardly, the arm 38 may swing with it and remain parallel thereto.

A lever 4i! is pivoted at 4| on the arm 38 below the top thereof, the lever being of bell crank form and having a short horizontal leg and a long vertical leg. The short leg is provided with a roller 42 extending from the rear face of the lever and the vertical leg carries a thread guide 43, which extends upwardly between roller 33 and plate 28.

A guide plate 44. is pivotally mounted at 45 on the inner face of plate 48 and the guide plate has a longitudinal slot 46, in which travels roller 42 on lever 40. A cam plate 41 is attached to one of the brackets 30, in which the plate 23 is mounted, and extends outwardly at right angles to the plane of plate 28 and throu h an'opening 48 therein. The cam is engaged by one end of the guide plate 44, and the guide plate is held in contact with the top surface of the cam by a spring 4e attached at one end to plate 2.3 and hearing at its free end in a slot in the up er edge of the portion of guide plate 44 encircling the pivot 45. Near its outer end, the cam is formed with a notch 50, into which the end of guide plate 44 may drop when the frame is swung outwardly suficientlv far from the package on the mandrel. In order to release the guide plate from notch 54, the plate is provided near one end with a pin which extends through an opening 52 in plate 28. By raising the pin, the end of the guide plate may be released from the notch.

,Each frame is urg d to swing toward its cork roll by a spring 53 attached at one end to plate 23 and at its other end to a fixed part of the structure of the machine. The s ring acts to cause roller to contact with tube IE on the mandrel or with the package being wound on the tube and the tube or package is thus held in contact with the cork roll 13 so that the mandrel is rotated by the roll. As the frame swings away from the cork roll during the growth of the packa e on the tube, roller 33 engages the thread guide 43 and this causes arm 38 and lever 40 to swing with the frame.

At the start of operation of the winding machine, each frame is swung away from its cork roll, until the guide plate 44 of the frame drops into the notch in the associated cam 50. As the frame swings away from the cork roll, the mandrel gudgeons roll down the slots in the supports, until they strike the lower end walls 24 of the supports. The mandrel can be removed from its mounting and a tube slipped over it, after which the mandrel is placed back in position with its gudgeons in the Slots in the supports and engaging the faces of the end walls 24 of the slots. When the guide plate 44 of the frame is released from the notch, the spring 53 swings the frame toward the cork roll and, in this movement of the frame, its roller 33 engages the tube l5 and moves the tube and mandrel upwardly, along the supports, until the tube makes contact with the cork roll 13. The thread 54 from the supply is then passed upwardly over guide bar 34, through the thread guide 43, and over roller 33 to the tube on the mandrel.

When the machine is started, the traverse bar 36 is reciprocated and moves each arm 38, each lever 44', and each thread guide 43 with it. As a lever 40 moves along the face of its plate 28, the engagement of the roller 42 on the lever in the slot 46 in guide plate 44 causes a backward rocking of lever 40 at each end of each stroke of the traverse bar. In such backward rocking of lever 40, its upper end moves in a direction opposite to that in which the lever as a whole is moving relative to its late 28. The extent of such rocking movement of the lever depends on the inclination of the slot 46 in the guide 44 for that lever, and the inclination of the slot is determined by the shape of cam 41. As the package on the tube on a mandrel builds up, the axis of the mandrel moves away from its cork roll and the frame is moved outwardly. This causes the guide plate 44 on the frame to move along the surface of its cam 41, and, by properly forming the cam, the traverse of the thread guide lengthwise of its mandrel is progressively shortened, so that the package formed on the tube on the mandrel has tapered or coned ends.

When the winding of the package has been completed, the frame for the mandrel of the package is moved outwardly, until its guide plate 44 drops into the notch 50 on the cam. At that time, the gudgeons of the mandrel have rolled down in the slots in their supports and rest opposite the entrance openings into the slots and against the walls 24 at the ends of the slots. The mandrel with the full package thereon can then be moved, the package taken off the mandrel and replaced by an empty tube, and the mandrel gudgeons may then be put back into the lower ends of the slots. When the guide plate 44 of the frame is released from the notch, the frame swings toward the cork roll and its roller 33 moves the mandrel and tube upwardly along thesupports, until the tube engages the cork roll. The insertion of a mandrel into the supports and its removal therefrom are thus simple operations, and, when a mandrel has been mounted in its supports, it is brought automatically into the desired relation with its cork roll by the action of the frame associated with that roll.

I claim: a

1. In a winding machine having a drum rotating on a horizontal axis and a mandrel for a core on which a package is to be wound, the combination of a pair of members lying at one side of the drum and formed with slots in their opposedfaces for receiving the ends of the mandrel, the slots lying parallel to each other and normal to the axis of 'the drum and extending downwardly in a direction away from the drum at a small angle to the horizontal, the upper ends of the slots lying approximately in a horizontal plane through the axis of the drum and the lower ends of the slots being closed, entrance openings in the tops of the members leading into the slots near the lower ends thereof, and means for urging a mandrel having its ends in the slots in the members into contact with the drum, said means including a plate pivotally mounted between said members on an axis parallel to and at a lower level than the axis of the drum, spring means acting on the plate and tending to swing its upper end toward the drum, and a roller mounted on the plate for rotation on a horizontal axis near its upper end.

2. In a winding machine having a drum rotating on a horizontal axis and a mandrel for a core on which a package is to be Wound, the combination of a pair of mandrel supports lying at one side of the drum and formed with slots in their opposed faces for receiving the ends of the mandrel, the slots lying parallel to each other and normal to the axis of the drum and having their ends closed, the upper ends of the slots lying approximately in a horizontal plane through the axis of the drum and the slots extending downwardly therefrom at a small angle to the horizontal, entrance openings in the tops of the supports leading into the slots near the lower ends thereof, a plate pivotally mounted on a horizontal axis below the level of the drum axis and lying between vertical planes through the supports, a spring connected to the plate and tending to swing it so that its upper end approaches the drum, and latch means for holding the plate outwardly from the drum beyond the lower ends of the slots.

3. In a winding machine having a drum rotating on a horizontal axis and a mandrel for a core on which a package is to be wound, the

combination of a pair of mandrel supports lying at one side of the drum and formed with slots in their opposed faces for receiving the ends of the mandrel, the slots lying parallel to each other and normal to the axis of the drum and having their ends closed, the upper ends of the slots lying approximately in a horizontal plane through the axis of the drum and the slots extending downwardly therefrom at a small angle to the horizontal, entrance openings in the tops of the supports leading into the slots near the lower ends thereof, a plate pivotally mounted on a horizontal axis below the level of the drum axis and lying between vertical planes through the supports, a roller mounted near the upper end of the plate on the side of the plate opposed to the drum for rotation on a horizontal axis, a spring connected to the plate and tending to swing it so that its upper end approaches the drum, and latch means for holding the plate outwardly from the drum beyond the lower ends of the slots.

EARL G. HILL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 339,796 Manning Apr. 13, 1886 462,665 Dick et al Nov. 3, 1891 976,698 Ryon Nov. 22, 1910 1,950,159 Berry Mar. 6, 1934 2,237,654 Cohn et a1 Apr. 8, 1941 FOREIGN PATENTS Number Country Date 3,580 Great Britain Sept. 12, 1876 4,568 Great Britain Jan. 8, 1898

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