US2695757A - Machine for winding thread - Google Patents

Description

Nov.A 30, 1954 H. F. BORG 2,695,757

MACHINE FOR WINDING THREAD Filed Oct. 13, 1950 sa s6 FIG. 34 35 3l FF" 6/4 S 4946.5064.

i 45 2- lh( las 4s 4 INVENTQR HERBERT E BORG ATTORNEY United States Patent "O M MACHINE FOR WINDING THREAD Herbert F. Borg, Worcester, Mass.

Application ctoher 13, 1950, Serial No. 190,029

.6 Claims. .(Cl. 242-48) My invention relates to machines for winding thread or other strand-like material into packages or bobbins .of the kind made up of equal layers that are progressively offset toward the butt end of the package, so as to provide a package with a cylindrical body portion and a tapered or pointed nose end. Such machines have heretofore been devised, but they do not run smoothly and do not wind such uniform and compact packages as are needed for proper unwinding for the purposes for which such packages are particularly designed. lt is an object of my invention to provide a machine, or an attachment that can be applied to various machines now in use, and which will provide progressive relative axial movement between the spool or spindle and the yarn guide as required for making a package tapered at the head end, but without any shaking or vibrating movement such as tends to make the package non-uniform, as with layers irregularly arranged or with hard or soft spots in the package, such as interfere with uniform unwinding.

Other objects of my invention are to provide an attachment that shall be very simple, with few and inexpensive parts; that shall be positive in action and exact in movement; in which friction shall be reduced to a minimum and that shall have a minimum of moving parts so as to reduce the tendency to become loose, to get out of adjustment and to wear, all of which things may cause improper operation and call for repairs and replacements, with consequent loss in eiiiciency.

Referring now to the annexed drawings, which are made a part of this application and in which similar reference characters indicate similar parts:

Fig. 1 is an elevation of a spool Winder with parts omitted, and showing a preferred form of the invention,

Fig. 2, a horizontal section, on line 2 2 of Fig. l,

Fig. 3, a vertical section on line 3-3 of Fig. 2,

Fig. 4, a section on line 4-4 of Fig. 1,

Fig. 5, a View similar to Fig. 2, but with the parts in the position assumed when the package is fully wound,

Fig. 6, an elevation of a modified form, and

Fig. 7, a section on line 7-7 of Fig. 6.

ln the drawings, the parts indicated by reference characters S, T, 1 0-23, 25, 33-36 and 3S to 4i) are conventional and may be the same as those disclosed in Patent No. 1,973,328, granted to myself and Dugald E. Walker on September ll, 1934.

The means for moving the spool axially to vary the location of the thread layers progressively as the wound mass increases in diameter includes a xed stud 41 having a reduced threaded end 42 screwed into a hole in the framework l0. At one end of the stud there is a collar 43 iixed to the stud by a set screw 44. At an intermediate point on the stud a freely rockable arm 45, iixed to a sleeve 46 by a setscrew 47, is mounted to swing toward and from the spool S as the diameter of the winding increases, said arm having a yoke 45 iixed to its upper end by a screw 46 and the arm being biased toward the spool by a coil spring 48 which is secured at one end to the arm 45 and at the other end to the fixed collar i3. The yoke 45 at the upper end of the arm 45 supports a roller 49 on a pivot pin 59.

The sieeve 46 at its lefthand end, carries a gear 51 fixed to the sleeve by a setscrew 52. A gear 53 that meshes with gear l is fastened by a setscrew 54 to an upright shaft 55 that has a tapered lower end journaled in a tapered recess in a bracket 56 which has a lower hub portion lixed to stud 41 by setscrews 57 and an upper y 2,695,757 Patented Nov. 30, 1954 ICC hollow arm 58 (Fig. 3) in which the shaft 55 is journaled. Shaft 55 has an integral annular flange at 59 bearing on the upper end of arm 58 and. a yoke 60 is fixed to said shaft above the flange by a setscrew 61, the yoke having a bent arm provided at its outer end `with a finger in the shape of a renewable pin 62 carrying a roller bearing 63 located in an annular slot at 64 in a sleeve 64' that is splined to a spindle 65 at 66 for rotation therewith, the lingers engaging at opposite sides of the sleeve. The spool S is connected to the sleeve in any suitable or conventional manner, as by a friction bushing 67, and is shown as having a conventional head at one end only, against which the layers of thread or like material abut at one end to form a package such as that indicated at T in Fig. 5.

The spring 4S serves to hold the gear Sll in mesh with gear 53. A pin 68 prevents disengagement of the sleeve 64 from the spindle 65.

In the operation of the device of my invention the spool is rotated and the thread guide is traversed along the spool in conventional manner and, as the diameter of the winding on the spool increases the roller 49 is moved progressively outward from the axis of the spindle, acting against the tension of the spring 48 to force the spool progessively toward the right in Fig. 1 through the intermediate parts, including the sleeve 46, the gears 5l and 53, the shaft 55 and arm 60. The action is positive, friction is reduced to a minimum, and there is little chance of wear such as would cause uneven or uncertain winding. The endwise movement of the spool may be opposed by any desirable or conventional means.

In the modiiied form of the invention, shown in Figs. 6 and 7, the general arrangement of parts is the same as in the form above described, but here the thread eye support 16 is connected by a iiexible band 70 aflixed at its opposite ends to support 16 and gear 51 respectively, so that increase in the size of the winding causes the shaft 55 to rotate on its axis and thus to move 'the spool endwise through connections such as previously described. The action is substantially the same as in the modification iirst described, as will be obvious.

It will be evident to those skilled in the art that various forms of bobbins, quills, and other thread mass holding devices may be employed With the device of my invention, and that many changes may be made in the devices herein disclosed, all without departing from the spirit of the invention. It is to be understood, therefore, that various terms are used for description and not for limitation and that I do not limit myself to what is shown in the drawings and described in the specification, but only as indicated in the appended claims.

Having thus fully described my invention, what I claims is:

l. In a spool winder having a rotatable yarn carrier and a traversing yarn guide, means for progressively displacing the yarn carrier axially during a winding operation comprising a device adapted to Contact the periphery of a thread mass on the yarn carrier and being movable in direct proportion to the increase in diameter of the winding, a rockshaft having direct connection with the yarn carrier, and connections between said rockshaft and said device for moving the yarn carrier progressively endwise, the connections from the device to the rockshaft including a bevel gear fixed to the device to move therewith as the thread mass increases in diameter, and another bevel gear meshing with the first-named gear, the second-named gear being fixed with relation to the rockshaft.

2. In a spool Winder having a rotatable spindle for a yarn carrier, and a traversing thread eye, means for progressively displacing the yarn carrier axially with reference to the throw of the thread eye during the winding comprising a rockshaft directly connected to the carrier, a bevel gear on the rockshaft, and a second bevel gear movable directly by the increase in diameter of the winding and meshing with the first-named bevel gear.

3. In a spool winder having a rotatable yarn carrier and a traversing thread eye, means for progressively displacing the yarn carrier axially during th-e winding operation comprising a roller mounted to engage the periphery of a thread mass on the spool, said roller being movable bodily outward as the winding grows, a gear in Xed relation to the roller to oscillate therewith, a rockshaft having an arm directly connected with the yarn carrier, and a gear on the rockshaft in mesh with the first-named gear.

4. In a spool Winder having rotatable yarn carrying means and a traversing thread guide, means for progressively displacing the yarn carrying means axially during the winding operation, comprising an element contacting with the periphery of a thread mass being wound and swingable away from the carrier in proportion to the increase in diameter of said mass, a bevel gear xed to said element to swing therewith, a rockshaft having a yoke with a finger engaging in an annular groove in the yarn carrier, and a bevel gear on the rockshaft in mesh with the rst-named bevel gear.

5. A device as in claim 4, including an anti-friction bearing on said finger.

6. In a spool Winder having a rotatable yarn carrier and a traversing yarn guide, means for progressively displacing the yarn carrier axially during a winding operation comprising a device adapted to contact the periphery of a thread mass on the yarn carrier and being movable in direct proportion to the increase in diameter of the winding, a rockshaft having direct connection with the yarn carrier, and connections between said rockshaft and said device for moving the yarn carrier progressively endwise, the connections from the device to the rockshaft including a bevel gear connected by a ilexible band to and moved by the device as the thread mass increases in diameter, and another bevel gear meshing with the rst-named gear, the second-named gear being xed with relation to the rockshaft.

References Cited in the file of this patent 15 UNITED STATES PATENTS Number Name Date 1,126,808 McKean Feb. 2, 1915 1,915,241 Reece June 20, 1933 20 2,287,012 Abbott June 23, 1942 2,290,391 Taylor July 21, 1942 2,605,054 Spencer July 29, 1952

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