US2389859A

US2389859A - Bobbin marking mechanism

Info

Publication number: US2389859A
Application number: US572690A
Authority: US
Inventors: Lambert Harry
Original assignee: Pacific Mills
Current assignee: Pacific Mills
Priority date: 1945-01-13
Filing date: 1945-01-13
Publication date: 1945-11-27
Anticipated expiration: 1962-11-27

Description

Nov. 27, 1945. H. LAMBERT BOBBIN MARKING MECHANISM Filed Jan. 13, 1945 2 Sheets-Sheet 1 *N Wm vm IN V EN TOR.

NQV. 27, 1945. LAMBERT BOBBIN MARKING MECHANISM Filed Jan. 13, 1945 2 Sheets-Sheet 2 IN V EN TOR.

Patented Nov. 27, 1945 BOBBIN MARKING MECHANISM Harry Lambert, Methuen, Mass, assignor to Pacific Mills, Lawrence, Mass., a corporation of Massachusetts Application January 13, 1945, Serial No. 572,690

Claims.

This invention relates to improvements in mechanism for marking on filled bobbins. More particularly it provides mechanism for placing an identification mark on each filled bobbin of a winding machine prior to the doing thereof. thereby to identify each bobbin as having yarn of a particular variety or-character, or as having some other quality or attribute making it desirable to have it visually distinguishable from other filled bobbins with which it maybecome associated, or readily identified as a part of a particular lot or run of yarn.

It has been customary heretofore to manually mark filled bobbins for identification purposes, and in the case of winding machines having horizontally disposed bobbins, the marking has been accomplished by a person, usually a girl,

whose sole duty has been to mark by hand the individual filled bobbins which have been dofied into boxes at the winding machine. This prior manual marking usually consisted of one or more axially extending chalk lines which frequently become obscured in subsequent operations if a bobbin happens to be positioned with its mark on the rear side of the bobbin as viewed.

It is among th objects of my present invention to provide a marking means, operative in conjunction with a winding machine, for applying an identification mark to each bobbin prior to dofiing of the bobbin.

Another object is the provision of means to apply automatically to each bobbin of a winding machine an identification mark which will be visible in every position of the bobbins.

A further object is to associate bobbin marking means with operating parts of the builder feeler mechanism of a winding machine whereby the marking means may be responsive to movements of the builder feeler mechanism.

Still another object is to provide bobbin marking mechanism in the form of an attachment which may be applied readily to presently available winding machines.

It is, moreover, my purpose and object generally to improve upon prior procedures for identifying filled bobbins.

The mentioned objects and results may be attained with a chalk-carrying member which is movable against the tension of a spring, into marking relation with a rotating bobbin of a winding machine, and which normally is held by said spring out of engagement with the bobbin. Means is provided on the regular builder feeler mechanism of the winding machine for engagement with the chalk-carrying member during the final travel of said mechanism in direction filling the bobbin, thereby to actuate the chalkcarrying member for a marking of the filled bobbin prior to its dofling. Also during the said final travel of the builder feeler mechanism, the means thereon for engaging the chalk-carrying member is gradually disengaged from said member to permit said members return movement by the spring after an identification mark has been applied to a bobbin.

It is intended that the patent shall cover, by suitable expression in the appended claims, whatever features of patentable novelty exist in the invention disclosed.

In the accompanying drawings:

Figure 1 is a fragmentary elevation of a winding machine equipped with a bobbin-marking mechanism embodying features of my invention, the casing being broken away to show interior operating parts;

Figure 2 is a similar view but showing less of the winding machine and having the bobbinmarking mechanism in marking relation to yarn on the bobbin;

Figure 3 is a cross-sectional view on line 33 of Figure 2;

Figure 4 is a cross-sectional view approximately on line 4-4 of Figure 2; and

Figure 5 is a cross-sectional view of the chalkcarrying yoke, showing the spring clip for holding the chalk in the yoke.

Referring to the drawings, the winding machine therein shown is a Well known type which may be considered representative of winding machines in general to which my present invention is applicable. The particular unit illustrated accommodates a single bobbin i0 disposed horizontally therein but a series of these units ordinarily are aligned side by side with as many of theunits in the series as may be desired for any particular installation.

Each unit comprises a box l2 with associated casing l4 within which the driving and operating mechanism of the unit is housed. The driven headstock spindle It extends out of the box [2 through its wall 13, above the casing l4, and carries at its outer end the cup-shaped member l8 which operatively engages the head end of the bobbin and which is retractible to release the bobbin in the dofiing operation. The opposite end of bobbin i0 is rotatably engaged in the relatively fixed tailstock 20 which is mounted on the

parallel rods

22, 32 fixed at their opposite ends respectively in the wall l3 of the box and in the remote end wall l5 of the casing l4.

The yarn 26 comes to the bobbin in through suitable relatively fixed yarn guides, not shown, and thence through the movable yarn guide 28 whose movement distributes the yarn along the bobbin as the latter rotates and draws the yarn from its source. As herein represented, the yarn guide 28 is carried on a carriage 30 which is slidably mounted on the rod 22 and on a lower rod 24 similar to the

rods

22, 32. Also carried by carriage 3D is the feeler arm 34 which is pivotally mounted at 36 on the carriage and carries at its end the feeler wheel 38 in position for peripheral engagement with the bobbin or with yarn which has been wound on the bobbin. A sprocket chain 40 has connection at 42 with carriage 30 so that the carriage moves in unison with the chain, and a pawl and ratchet mechanism, which is within casing M at the side of box I2, is adapted to advance the chain intermittently in the clockwise direction of its sprockets whenever the pawl is released for ratchet engagement, the pawl being mounted on an oscillating shaft so that it has continual oscillating movement. However, the pawl is held in a position out of operative engagement with the ratchet excepting at times when an actuating bar 44 is depressed to release the pawl. This bar 44 extends longitudinally within casing l4 and is pivotally supported at 45 on rod 22, a suitable spring, not shown, tending to maintain it yieldingly in its elevated position holding the pawl out of ratchet engaging position.

Feeler arm 34 has a projection 35 overlying bar 44, in position to depress the bar, thereby to release the main-advancing pawl, whenever the feeler arm 34 is rocked about its pivot 36 due to feeler wheel 38 riding on a filled portion of the bobbin.

The illustrated winder operates to fill a bobbin by building the yarn on the bobbin up to the desired maximum diameter at the head end, and gradually working toward the opposite end until the bobbin is filled, the axial feed being intermittent under the control of the feeler Wheel 38, acting through feeler arm 34 and actuating bar 44.

When carriage 3D has moved to the limit of its travel to the right, and bobbin ID has been filled with yarn, two clutch mechanisms, not shown, come into action, one operating to retract the headstock spindle 16 to don the filled bobbin and to permit an empty bobbin to take its place, and the other operating to reverse the direction of travel of chain 46, thereby to return carriage 30 to its initial position at the left hand limit of its travel.

According to my present invention, an identification mark is to be applied automatically to each bobbin before it leaves the winding machine. As embodied on the particular winding machine illustrated, my marking means comprises an arm 48 swingably mounted on a stud 50 which projects from the tailstock 20. Also rotatably mounted on stud 50 is the toothed wheel 52 which is shown secured to arm 48 by screw 54 so that the arm and Wheel act as a unit and any angular movement of arm 48 causes equal angular movement of wheel 52, about stud 58. A lug 56 projecting from the tailstock 25 has a rubber or other cushioning element 58 thereon in position to limit clockwise swinging movement of arm 48, said arm having a finger 49 thereon for engaging cushion 58, and a coil spring 60 being connected to finger 49 and tending yieldingly to maintain the finger against cushion 58.

The arm 48 has shape whereby its free end portion extends along but spaced above the bobbin l0, terminating somewhat short of the head end of the bobbin. At its free end, the arm is equipped with a yoke 62 within which are mounted the

chalk masses

64, 66, retained in the yoke by a suitable spring clip 68 engaging between the chalk masses. Obviously a single piece of chalk might be employed, or more than two chalk masses might be used, by modifying the holding yoke to suit any particular requirement. As herein shown, each

chalk mass

64, 66 has its end which is toward bobbin I0 tapered to provide a marking tip at 65 and 61 respectively. Also, as shown, the end portion 69 of arm 48 is a separate piece pivotally mounted at 10 on arm 48, so that the

chalk masses

64, 65 can yield once they are brought into marking contact with the yarn on the rotating bobbin 10. A lug 12 on end piece 49 engages under the arm 48 in the elevated position of the arm thereby limiting counter-clockwise movement of the end piece about its pivot 10.

Mounted on tailstock 29, below the toothed wheel 52 is a cam plate 14. The plate conveniently may have the generally hook shape as represented with the inclined cam surface 16 on the inside of the hook end, the plate being adjustably mounted with cam surface 16 exposed toward the head end of the machine.

Bobbin-marking actuation of arm 48 is effected by a rack member 18 which is shown pivotally mounted at on a bracket 82 which is secured at 84 on the depending part or" carriage 3D. A coil spring 86 has one end suitably anchored on carriage 36 and its other end connected to rack member 18 at a location whereby the spring tends yieldingly to swing the rack counter-clockwise about its pivot 80. However, a lug 88 on the rack, engaging bracket 82, limits counter-clockwise swinging oi the rack so that the spring 86 normally holds the rack in generally horizontal position with its teeth, which are at its upper edge, in a plane to mesh with the teeth of toothed wheel 52 when carriage 30 approaches the limit of its travel to the right. This inter-meshing of rack member 18 with toothed wheel 52 during the final travel of carriage 30 to the right, causes counter-clockwise swinging of arm 48 until the

chalk masses

64, 66 come into marking engagement with the yarn on rotating bobbin I0 thereby to apply circumferential identification marks which may be of any desired color or combination of colors according to the colors of the chalk masses selected for use.

During the final travel of carriage 30 to the right, a projecting pin 90 on rack member 18 rides down the inclined cam surface 76 of cam plate 14, gradually swinging the rack member clockwise about its pivot 88 and ultimately disengaging the rack member '18 from toothed wheel 52, immediately upon which the spring 65 returns arm 48 clockwise to its starting position, the cushion 58 absorbing the shock of this spring return of the parts. Rack member 78 returns to its starting position as a result of the regular reverse travel of carriage 30.

While I have shown and described a particular embodiment of my invention as applied to one well known type of winding machine, it will be understood that the invention is readily adaptable to other types andmakes of winding machines, and various modifications of my disclosed structure may be made without departing from the invention, subject only to such limitations as may be expressly included in the appended claims.

I claim as my invention:

1. Bobbin marking mechanism comprising means for supporting and rotating a bobbin, yarn uiding means movable in directions longitudinally of the bobbin for distributing yarn therealong, and means responsive to movement of said yarn guiding means for applying a mark to the rotating bobbin.

2. Bobbin marking mechanism comprising means for supporting. and rotating a bobbin, means for guiding and distributing yarn in filling relation to the rotating bobbin, a member pivotally mounted toward one end of the bobbin and movable on its pivot toward said bobbin, said member carrying a marking substance thereon, and means associated with said guiding and distributing means engageable with said member at a predetermined stage of distribution of yarn on the bobbin and operative to move said member to bring said marking substance into marking relation with the bobbin, and yieldable means acting on said member and operative to move it away from the bobbin following a marking movement thereof.

3. Bobbin marking mechanism comprising a pivotally mounted member having a marking substance carried thereon on one side of its pivot, a gear segment on said member at the opposite side of said pivot, means for supporting a bobbin adjacent to said marking substance on said member, yarn guiding means movable along the bobbin, and a rack movable with said yarn guiding means and engageable with said gear segment at a predetermined stage in the movement of the yarn guiding means, thereby to actuate said member in direction to bring said marking substance into marking engagement with the bobbin.

4. Bobbin marking mechanism comprising a pivotally mounted member having a marking substance carried thereon on one side of its pivot, a gear segment on said member at the opposite side of said pivot, means for supporting a bobbin adjacent to said marking substance on said member, yarn guiding means movable along the bobbin, a rack movable with said yarn guiding means and engageable with said gear segment at a predetermined stage in the movement of the yarn guiding I means, thereby to actuate said member in direction to bring said marking substance. into marking engagement with the bobbin, and means for disengaging said rack and gear segment following an actuation of said member.

5. In a winding machine having a rotating bobbin and yarn guiding and distributing means movable along the bobbin, the combination therewith of means responsive to movement of said yarn guiding and distributing means for engaging the bobbin and applying thereto an identification mark.

6. In a winding machine having a rotating bobbin and yarn guiding and distributing means movable along the bobbin, the combination therewith of a bobbin marking member swingable into marking relation to the bobbin, and biased out of said relation,-and means for swinging said member into marking relation in opposition to its said bias, comprising gear teeth on said member and a rack on said yarn guiding and distributing means positioned for inter-engagement at a predetermined stage in the movement of the yarn guiding and distributing means.

7. In a winding machine having a rotating bobbin and yarn guiding and distributing means movable along the bobbin, the combination therewith of a bobbin marking member swingable into marking relation to the bobbin and biased out of said relation, means for swinging said member into marking relation in opposition to its said bias, comprising an actuator movable with the yarn guiding and distributing means and positioned for actuating engagement with said member at a predetermined stage in the movement of the yarn guiding and distributing means, and means for disengaging the actuator following a bobbin-marking swing of said member.

8. In a winding machine having a rotating bobbin and yarn guiding means movable along the bobbin, the combination therewith of bobbin marking means movable into marking relation to the bobbin in response to movement of said yarn guiding means, and resilient means acting on said bobbin marking means to retract the same following a marking engagement thereof with the bobbin.

9. In a winding machine having a rotating bobbin and yarn guiding means movable along the bobbin. the combination therewith of means for applying a circumferential identification mark on the bobbin, comprising a pivoted marking memberswingable into marking relation to the bobbin and biased out Of said relation, an actuator movable with said yarn guiding means and positioned for engagement with said member to swing it into the said marking relation, and a cam in the path of said actuator and operative to disengage the actuator following a marking engagement of said member with the rotating bobbin.

10. In a winding machine having a horizontally disposed rotating bobbin and yarn distributing means movable along the bobbin, the combination therewith of a lever pivotally mounted toward one end of the bobbin, said lever having a mass of chalk on one side of its pivot and a gear segment on the other side of said pivot, a rack mounted for movement with said yarn distributing means, said rack being pivotally supported and having a spring yieldingly maintaining it in generally horizontal position in a plane for engagement with said gear segment at a predetermined stage in the movement of said yarn distributing means, thereby to actuate said lever to bring its chalk into marking engagement with the bobbin, and a cam in the path of movement of the rack and operative to depress the rack out of gear segment engagement following a marking of the bobbin.

HARRY LAMBERT.