US1905910A - Bobbin winding and bunch forming mechanism and method - Google Patents

Description

April 1933- l. KELLETT ET AL 1,905,910

BOBBIN WINDING AND BUNCH FORMING MECHANISM AND METHOD Filed May 23, 1929 2 Sheets-Sheet l Aprii 25, 1933. I. KELLETT ET AL BOBBIN WINDING AND BUNCH FORMING MECHANISM AND METHOD 2 Sheets-Sheet 2 Filed May 23, 1929 Patented Apr. 25, 1933 siren sss PATENT FFI cE IRVINE KELLETT AND NED AnMITAGE, 0F LAWRENCE, AND WALTER J. WooD, or

" METHUnN MAssAeHUsn'rTs BOBBIN WINDING AND BUNCH FORMING IKECHANISM AND METHOD i Application filed May 23,

This invention relates to the winding of bobbins with yarn and particularly to the winding of the bunch on the bobbin.

Vfhen the bobbin is used inthe shuttle of a loom the bobbin is felt by a feeder frequently to detect the substantial exhaustion of the yarn or filling on the bobbin, and thereupon eitherto stop the operation of the loom or effect the changing of bobbins, as

' the case may be. The feeler arm of the feelbobbin in a different manner than the body of the yarn so as to provide a bunch of yarn in position to be engaged by the feeder mechanism when the body of yarn on the bobbin is exhausted, whereby to detect such exhaustion and operate in an appropriate manner.

A. further object of the invention is bobbin winding mechanism so arranged that the yarn is fed to the rotating bobbin from a fixed location and the bobbin is reciprocated and is at the same time moved gradually lengthwise past said location, combined vith means to vary the extent of reciprocatory movement for the winding of the bunch on the bobbin.

Another object of'the invention is the provision of mechanism, and especially a spinning frame, so arranged as to permit the formation of a bunch on the bobbin, which hunch is big enough to carryyarn twice across the loom, even on very wide machines, after the feeler mechanism has indicated the exhaustion of the bobbin with a minimum surplus of yarn remaining on the bob- A further object of the invention is the provision of a spinning frame so arranged that the bunches can be wound on to a plurality of bobbins simultaneously.

Another object of the invention is the 1929. Serial No. 365,450.

provision of a spinning'frame whereinthe M bobbin is reciprocated axially for winding the body of yarn thereon and has means to reduce the extent of reciprocatory movement for Winding the first convolutions of yarn in a bunch at one end of the bobbin.

A further object is the provision of bobbin winding mechanism having means automatically to reciprocate the bobbin axially throughout a small extent of travel, for forming the bunch on the bobbin, and thereafter for automatically causing the-bobbin to reciprocate throughout a greater extent, after a predetermined amount of yarn has been wound on the bunch, for completing the winding of the yarn on the bobbin.

The machine embodying the 7 present invention includes a bobbin oarrieror lifting bar that is reciprocated by a slide or carriage actuated by a lever operated by means of a rotatable cam member. The slide and lever carry abutment members which are adapted to be engaged to reducethe stroke of the slide for winding on the'bunch.

It is an object of the present i-nventionto provide means to stop the operation of the machine when the bobbin is full and to leave the cam and the abutment members in such position that the machine canbe readily reset for winding a second set of bobbins. v A. further object is generally to improve upon bobbin winding and bunch building apparatus and methods. V

Fig. 1 is a side elevation, partly broken away, of such parts of a spinning frame as are necessary to illustrate the present invention. v v

Fig. 2 is a section taken along line 22 of Fig. 1. 1

- Fig. 3 is a detailed side elevation of the cam-operated lever and slide of Fig. 1 with the abutment members arranged in engaging position for the winding of the bunch.

Fig. 4 is an enlarged sectional detail taken along line 4: 4c of Fig. 3.

Fig. 5 is a detail of the rack and Figs. 1, 3 and 4:.

Fig. 6 is a detailed view of the mechanism gear of for stopping the machine when the bobbins .are completely wound.

Fig. 7 is an enlarged sectional view of the counting mechanism in an unoperated position thereof, taken along line 77 of Fig. 2.

Fig. 8 is similar to Fig. 7, except that the mechanism is shown in an operated position.

Fig. 9 is a view of the cam and ratchet wheel of Fig. 8, with the ratchet wheel in reset position. 7

Fig. 10 is a plan view of a bobbin which can be used with this invention.

Fig. 11 is an enlarged sectional detail of the base or butt of the bobbin of Fig. 10,

' showing the bunch thereon.

As here shown, the spinning machine embodying the present invention includes a frame 12 which rotatably supports a driven roll 1.4 that serves to rotate the bobbins. A spindle-supporting bar 15 is located beside said roll and carries a plurality of horizontally-spaced vertical spindles 16. A movable bobbin-supporting or lifting bar 18 is located above said spindle bar 15 and supports pulleys 20 through which said spindles are loosely extended. Belts 22 are passed around each pair of spindles and the driving roll 14 and also about similar sets of spindles, not shown, located on the other side of the driving roll so that four bobbins are driven by each belt. Means, not shown, are provided to maintain the belts taut as the bobbin supporting bars-18 are reciprocated. Bobbins 24 are received loosely over the spindles and the enlarged lower ends or butts 26 are recurved on the pulleys 20 in driving connection therewith. Bobbin caps 28 are carried by the ends of thespindles and extend downwardly and loosely over the bobbins. The yarn or filling a, with which the bobbins, illustrated in Figs. 10 and 11, are wound, is brought downwardly from an upper part of the spinning frame and passes over the outwardly flared lower edge 30 of the bobbin caps and thence onto the bobbin. The bobbin caps remain in fixed position and the bobbins are adapted to move in a continuous manner downwardly from an initial elevated position, at the start of the windingoperation wherein they are substantially entirely within the bobbin caps, as shown in the dotted lines in Fig. l, and also to reciprocate during such movement for the winding of the yarn on the bobbin. The yarn is thus wound on from a fixed location while the bobbin moves to distribute the yarn along the length of the bobbin.

The movements of the bobbin supporting rame are controlled by a horizontally movable carriage 32 which is supported on a guideway 34 below the spindle supporting bar 15. A vertical rod 36 is secured to the bobbin supporting bar 18 and depends therebelow and the lower end thereof is connected to the lower end of a flexible cable as the chain 38 which extends upwardly over the guide rollers 40 and is attached at its upper end to said carriage 32. Thus, by moving said carriage toward the right and left, alternately, the bobbins are raised and lowered. The bobbins are adapted to be rotated continuously during their reciprocatory movements and to travel from the elcvated position shown in the dotted lines, Fig. 1, to a low position wherein the upper ends of the bobbins are practically out of the bobbin caps. To this end, a horizontal screw threaded shaft 42 has its right hand end bearing against or swivelled in the carriage 32. The other end of said shaft has a splined connection with and is slidable axially in a one-way clutch mechanism 44 which is driven by a gear 46. Said gear is driven by a suitable gear train 48 and worm gears 50 and 52 respectively from acam shaft '54. Said cam shaft is driven through worm gears 56 and spur gears 58 by a belt 60 from the driving roll 14. The shaft has a double-lobed cam 62 thereon which engages a cam roller 64 pivoted to the lower end of a depending lever 66, the upper end of which is pivoted adjustably to a slotted ear 68 of the supporting frame. Said lever thus is caused to reciprocate twice for each revolution of the'shaft 54. A depending arm 7 0 is located between said lever and the carriage 32 andis screw-threaded on said screw threaded shaft 42. Said arm 70 has at its lower end a roller 72 that engages the lower end of the lever 66. Thus, as said lever 66 is reciprocated, said arm 70 is correspondingly reciprocated and thus causes the screw threaded shaft 42 and the carriage 32 to be reciprocated. At the same time, the screw threaded shaft, through its geared down connection with the cam shaft 54, is slowly rotated in a direction to permit the carriage, by reason of the weight of the parts associated therewith, to move toward the left, Fig. 1, and thereby cause the bobbins to descend slowly while they are reciprocated.

Means are provided to reduce the extent of reciprocatory movements of the bobbins during the first part of the winding operation, for forming the bunches on the bobbins. Said means include a rack 72 which is slidable vertically on the arm 70 and is maintained yieldingly in a low position by means including the retractile spring 74. An ear or abutment member 76 is carried by the upper end of said rack and projects toward the left, see Figs. 1 and 3. A complemental abutment member or lever 78 is pivoted at 80 to said bobbin-reciprocating lever 66 near the pivoted end thereof where the amplitude of vibration is small; and said abutment member 78 projects to the right or toward the other abutment member 76 and is provided with an adjustable engaging section as the bolt 82.

In starting the winding operation with empty bobbins, the screw threaded shaft 42 is rotated by the hand wheel 84 to move the carriage 32 to the right, thus to elevate the bobbin supporting bar 18 and the bobbins thereon. Near the extreme end ofsuch movement, a spur gear 86 carried by the shaft 42 is brought into engagement with the teeth of the rack 72 and thereby raises the rack to bring the abutment member 76 in line with the abutment or lever 78. The gear 86 is provided with a tooth 88 that'is longer than the other teeth of the gear and thus serves to restrict further movement of the parts in the same direction. When the machine is set in operation, thelever 66 is caused to reciprocate but, dueto'the engagement of the abutment members 76 and 78, the amplitude. of vibration of the arm and consequently of the bobbin-frame is of small extent as compared with its normal amplitude. wound in a bunch I) at the base or butt 26 of the bobbins as illustrated in Figs. 10 and 11. \Vhile the yarn is being wound in the bunch, the shaft 42 is rotating in a direction to drive the rack 72 downwardly; but the abutment members are wide enough to remain in cooperative relation with each other until there is enough yarn in the bunch to render the abutment members unnecessary. After a small and predetermined amount of yarn has been wound on the bobbins, the abutment members are caused to be disengaged so that the bobbins can assume their normal extent of reciprocatory movement for winding on the body .of the yarn.

The means for effecting the disengagement of the abutment members includes acounting apparatus 90 which is supported in front of the lower end of the lever 66. Said counting apparatus, see especially Figs. 7 and 8, includes a tripping lever 92 which is pivoted at'94 to the frame or housing 96 of the device. Said lever at its pivoted end has a normally horizontally extended arm 98 which has an arcuate face 100 that is normally held in unoperated positions against the cylindrical portion of a cam 102 that is pivoted on a pin 104. Said cam 102 has an arcuate recess or notch 106 therein that is adapted to be moved ultimately into position over the arcuate. arm 98, thereby to release said arm and permit it to swing upwardly. An operating lever 108 is pivoted at 110 on said lever 92 and is normally held in an elevated position by a retractile spring 112 which also biases said lever 92 foroperation and holds it normally against said cam member 102. Said cam member 102 is provided with a ratchet wheel 114 which is movable therewith. An operating pawl 116 is pivoted to said operating lever 108 and engages the teeth of said ratchet wheel to advance it Consequently, the yarn is one tooth for each reciprocatory movement of said lever 108 against the action of a spring, not shown, which tends to move said ratchet wheel in the opposite or counter-clockwise direction. A restraining pawl 118 is pivotally mounted on the pin 94 and engages the teeth of said ratchet wheel normally to hold the ratchet wheel releasably against return movement. The ratchet wheel is provided with an elongated tooth 120 which is adapted to engage the end of the restrainingpawl 118,.as shown in Fig. 7, and thereby limit rotation of the ratchet wheel under the action of its spring. The angular reiation between the notch 106 of the cam member and the elongated tooth 120 of the ratchet wheel can be varied at will by means, not shown, whereby to vary the numberof operations ofthe operating lever 108 to effect the tripping of the lever From the foregoing, it is apparent that when the lever 108 is reciprocated a certain number of times, the notch 106 will be in a position to release the lever 92, which lever thereupon will move in a clockwise direction into the position shown in Fig. 8 under the'action. of the spring 112. The device is reset by moving the lever 92 back to its original position, the arm 98 engaging a projection 122 of'the restraining pawl 118 at the end of its movement whereby to release the ratchet wheel and permit it to return to the normal position shown in F ig; 7. The operating lever 108 is provided with a striker member 124 which has a laterally extended projection or striker foot 126. The shaft 54, see Figs. 1 and 2, has an arm 128 fixed thereto that is provided with an axiall extended pin or projection 130 that is adapted at each revolution of the shaft to engage the striker foot 126 and thereby depress and subsequently release the operatlever 108 and thereby cause the ratchet wheel 114 to advance one tooth for each revolution of the shaft. Thus, after a predetermined number of revolutions of the shaft, and consequently a predetermined amount of yarn has been wound into the bunch on the bobbin, the lever 92 is caused to be released, The pivoted abutment lever 78 is provided with a depending arm 132 which is terminated shortly above the lever 92. When said lever 92 is released and moves in a clockwise direction toward the right, it engages said arm 182 and thereby causes the abutment lever 7 8 to pivot on its support and to be moved away from cooperative relation with the abutment member 76. Consequently the arm 70 is then permitted to be engaged by and to reciprocate with an increased amplitude governed by the amplitude of the lower end of the lever 66. The remainder of the yarn is then wound on the bobbin. in the normal manner.

During the winding operation, the bobbins descend and the carriage 32 moves toward the left. The carriage has a projecting member 134 that, when the carriage is about at the end of its stroke and the bob: bins are practically completely wound, engages the operating lever 92 of the counting mechanism and moves it in a counterclockwise direction and thus resets it automatically. If desired, however, this member 134 can be dispensed with and the'lever 92 reset by hand.

The operation of the machine'is controlled by a horizontally movable shipper bar 136 which controls the shifting of a belt, not shown, that operates the machine. When the ,rod is in the dotted line position shown in Fig. 1, wherein a holding notch 138 therein fits over a flange 140 of the frame 12, the bar is in the normal operating position, with the machine in operation. When said ship.

per bar is elevated, to cause it to disengage said flange, means, as a spring, not shown, serve to move the shipper bar to the left into the full line position and shift the driving belt and stop the machine.

Means are provided to stop the machine by operating the shipper bar when the bobbins are full and are in the highest position of the stroke and the cam 62 is horizontal, as shown in Fig. 1, so that the apparatus can be reset and the abutment member 72 can be elevated into proper position without coming under and striking the abutment lever 78 as would happen if the cam member 62 was vertical, for instance. Said means includes a lever 142 which is pivoted intermediate its ends to the frame 12 and has one end thereof disposed beneath the shipper bar. The other end of said lever is pivotally connected to the upper end of a depending rod 144 which is swivelled, preferably adjustably, in one end of a lower lever 146 that is pivoted at 148 to a slotted bracket 150 that is horizontally adjustable on and is fixed by a clamping bolt or screw 152 to the frame 12 of the machine. The inner or free end of said lever 146 is disposed beneath the bobbin supporting or lifting bar 18 and said bar, during the major part of the winding period, is normally reciprocable above and out of contact with said lever 146. When, however, said bobbins are practically full, said lifting bar reciprocates closer to and finally, during part of its stroke, engages the lever. The lever thereby reciprocates but in a direction that will not move the shipper bar 136. However, during the last downward movement of the lifting bar, it passes below the lever 146. On the succeeding upward stroke of the lifting bar, it raises the free end of said lever and causes the free end of lever 142 to be raised into engagement with the shipper bar, thereby to move said shipper bar out of engagement with the flange 146 into a free position wherein it is moved automatically toward the left and the machine is stopped. The machine thus stops with the cam 62 in the desired position and in readiness to permit the lifting bar and carriage to be reset for the next winding operation.

We claim:

1. Bobbin winding mechanism including bobbin rotating means, means to advance the bobbin in a progressive manner lengthwise, means to reciprocate said bobbin during such lengthwise movement, said reciprocating means having separate means providing separately short and long amplitudes of reciprocatory movement of the bobbin and a common device for reciprocating both of said separate means, means to condition said reciprocating means to reciprocate said bobbin throughout the short amplitude for winding the bunch on the bobbin and thereafter to condition said reciprocating means to reciprocate said bobbin throughout the long amplitude for filling the remainder of the bobbin.

2. Bobbin winding mechanism including the combination of supporting means for a rotatable bobbin, means to move said supporting means in a continuous manner lengthwise of the bobbin, means to reciprocate said supporting means during such movement including a reciprocatory lever, a member reciprocable with said supporting means having two separate abutments which are separately engageable with said lever in locations providing different amplitudes ofvibration of said reciprocable member, and means to condition a selected one of said abutments for effective cooperation with said lever.

3. Bobbin winding mechanism including the combination of supporting means for a rotatable bobbin, means to move said supporting means in a continuous manner lengthwise of the bobbin, means to reciprocate said supporting means during such movement including a reciprocatory lever, a member reciprocable with said supporting means having two separate abutments which are engageable'with said lever in locations providing different amplitudes of vibration, of said'reciprocable member, and means operative at the end of a predetermined number of reciprocatory movements of the bobbin to transfer the engagement between said lever and member from one to the other of said abutments;

4. A spinning frame including a bobbin lifting bar, a movable carriage associated therewith, means to lower said lifting bar in a continuous manner from an elevated position including a rotatable, horizontallydisposed, axially-movable screw-threaded shaft connected with said carriage, an arm screw-threaded on said shaft, means for reciprocating said arm including a pivoted lever engageable at its free end with said arm, cam means for reciprocating said lever, a movable abutment on said arm engageable with said lever intermediate its ends, and automatically operative means to transfer the engagement between said lever and arm from said abutment to the free end of said lever. 1

5. Bobbin winding mechanism including a bobbin lifting bar, a movable carriage associated therewith, means to lower said lifting bar in a continuous. manner from an elevated position including a rotatable, horizontally-disposed, axially-movable screwthreaded shaft connected with said carriage, an arm screw-threaded on said shaft, means to reciprocate said arm including a pivoted lever having a disengageable connection at its free end with said arm, cam means for reciprocating said lever, an abutment carried by said arm which is. movable into engagement with an intermediate part of said lever and which when so engaged effects the disconnection of the aforesaid connection, and automatically-operative means to disengage said abutment and said arm and to effect the engagement of the aforesaid connection.

6. Bobbin winding mechanism including a bobbin lifting bar, a movable carriage associated therewith, means to lower said liftingbar in a continuous manner from an elevated position including a rotatable, horizontally-disposed, axially-movable screwthreaded shaft connected with said carriage, an arm screw-threaded on said shaft, and means to reciprocate said arm including a pivoted leverhaving a disengageable connection at its free end with said arm, cam means for reciprocating said lever, an abutment lever pivoted on said aforesaid lever intermediate its ends, an abutment carried by said arm movable into and out of engaging position with respect to said abutment lever, an automatically operating means to move said abutment lever out of operative position with said abutment.

7. Bobbin winding mechanism including a bobbin lifting bar, a movable carriage associated therewith, means to lower said lifting bar in a continuous manner from an elevated position including a rotatable, horizontallydisposed, axially-movable screw-threaded shaft connected with said carriage, an arm screw-threaded on said shaft, and means to reciprocate said arm including a pivoted lever having a disengageable connection at its free end with said arm, cam means forreciprocating said lever, an abutment lever pivoted on said aforesaid lever intermediate its ends, an abutment carried by said arm movable into and out of engaging position i with respect to said abutment lever, and

means governed by the amount of yarn wound on said bobbin to move said abut.- ment lever out of operative position with respect to said abutment. i i

8. Bobbin winding mechanism. including a bobbin lifting bar, a movable carriage assoiated therewith, means to lower said lifting bar in a continuous manner from an elevated position including a rotatable, horizontally-disposed, axially-movable screwthreaded shaft connected with said carriage,

an arm screw-threaded on said shaft, and

means to reciprocate said arm including a pivoted lever having disengageable connection at its free end with said arm, cam means to reciprocate said lever, a relatively stationary abutment member, asecond abut;

ment member carried by said arm movable into position to engage said stationary abutment member and effect the disengagement of the aforesaid connection, and means governed by the amount of yarn wound on said bobbin to effect the disengagement of said arm, a gear fixed to said screw-threaded shaft engageable and disengageable with said rack for raising it, an abutment member carried by said. rack, an abutment lever pivoted to said pivoted lever intermediate its ends and adapted to be engaged by said abut:

ment member when the rack is in raised position, and means governed by the amount of yarn wound on the bobbin to move said abutment lever out of cooperative position with said abutment member. I

10. Bobbin winding mechanism including a bobbin lifting bar, a movable carriage associated therewith, means to lower said lifting bar in a continuous manner from an elevated position including a rotatable,'horizontally-disposed, axially-movable screwthreaded shaft connected with said carriage, an arm screw-threaded on said shaft, and means to reciprocate said arm including a pivoted lever having a disengageable connection at its free end with said arm, a rotatable cam engageable with said lever for reciprocating it, an abutment lever pivoted to said pivoted lever intermediate its ends, a rack slidably carried by said arm, an abutment member carried by said rack, a gear fixed to said screw-threaded shaft adapted to raise said rack and move said abutment member into engaging position with said abutment lever and disengage said disengageable connection, and counting means operable at the end of a predetermined number of revolutions of said cam arranged to move said abutment lever out of operative position with respect to said abutment to effect the engagement of the aforesaid connection.

11. Bobbin winding, mechanism including a bobbin lifting bar, a movable carriage associated therewith, means to lower said lifting bar in a continuous manner from an elevated position including a rotatable, horizontallydisposed, axiallyanovable screwthreaded shaft connected with said carriage, an arm screw-threaded on saidshaft, means to reciprocate said arm including a pivoted lever having a disengageable connection at its free end with said arm, a rotatable eam engageable with said lever for reciprocating it, an abutment lever pivoted to said pivoted lever intermediate its ends, a rack slidably carried by said arm, an abutment member carried by said rack, a gear fixed to said screw-threaded shaft adapted to raise said rack and move said abutment member into engaging position with said abutment lever and disengage said disengageable connection, and counting means operable at the end of a predetermined number of revolutions of said cam arranged to move said abutment lever out of operative position with respect to said abutment to effect the engagement of the aforesaid connection, said counting means including a spring-urged arm, means normally holding said arm inan unoperated position free from said abutment lever including a counting cam, means including a reciprocable counting lever arranged to move said counting cam in a step by step manner toward a release position, and an arm rotatable with said first named cam for successively reciprocating said counting lever.

l2. Bobbin winding mechanism including a bobbin lifting bar, a movable carriage associated therewith, means to lower said lifting bar in a continuous manner from an elevated position including a rotatable, horizontally-disposed, axially-movable screwthreaded shaft connected with said carriage, an arm screw-threaded on said shaft, means to reciprocate said arm including a pivoted lever having a disengageable connection at its free end with said arm, a rotatable cam engageable with said lever for rec procating it, an abutment lever pivoted to said pivoted lever intermediate its ends, a rack slidably carried by said arm, an abutment member carried by said rack, a gear fixed to said screw-threaded shaft adapted to raise said rack and move said abutment member into engaging positlon withsaid abutment lever and disengage said disengagealole connection,

and counting means operable at the" end of a predetermined number of revolutions of said cam arranged to move said abutment lever out of operative position with respect to said abutment to effect the engagement of the aforesaid connection, said counting means including a spring-urged arm, means normally holding said arm in an unoperated position free from-said abutment lever including a counting cam, means including a recipro-cable counting lever arranged to move said counting cam in a step by step manner and lowering said lifting frame including a horizontal y movable carriage, a continuously rotatable screw-threaded shaft engaged with said carriage for moving it horizontally, a vertical arm screw-threaded on said shaft, a vertical lever pivoted at its upper end and bearing on said arm at its lower end, a rotatable cam for reciprocating said lever and consequently said arm and said shaft and carriage, a rack vertically slidable on said arm, an abutment member carried by said rack, a gear fixed to said shaft engageable and disengageable with said rack and adapted to raise said rack and said abutment member, an abutment lever pivoted to the upper end of said pivoted lever and extended toward said abutment member, said abutment member and said abutment lever adapted to be engaged when said rack is in elevated position whereby to establish an operative connection between said pivoted'lever and arm and disengage the aforesaid connection, and count ing-means operated after a predetermined number of revolutions of said cam to move said abutment lever out of cooperating position with said abutment member, whereby to effect the re enagement of said connection between said lever and arm.

in testimony whereof, we have signed our names to this specification.

IRVINE KELLETT. J NED ARMITAGE.

HALTER J. WOOD.

Images