US2780418A - Cop winder - Google Patents

Description

Feb. 5, 1957 l A.,. mms 2,780,418

COP VFIINDER 8 Sheets-Sheet l Filed D'eG. 3l, 1954 Fl C7'. l.

INVENTOR CII/al1. C Dau-11s ATTORNEY A. C. DAVIS"V Feb. 5, 1957 CP WINDER' 8 Sheets-Sheet 2 Filed Dec. 5l, 1954 l \INVENTOR ATTORNEY Feb. 5, 1957 A. c. DAVIS Y 2,780,418

` COP WINDER Filed Deo. 5l, 1954 8 Sheets-Sheet 5 ATTORNEY A. C. DAVIS Feb. 5, 1957 Filed Dec. 5l, 1954 EIS R Y m m ,w .w m m w A a f @wf n. c n 4 #a lcf ll Il. Y l B MHINHHLV II i6 -NI l 5 3 .22

A. c. DAVIS cof WINDER 5 Sheets-Sheet Feb. 5, 1957 Filed nec. 51, 1954 Feb. 5, 1957 Aam/1s f 2,780,418

` co1. wINnER v Filed Dec, s1, 195A avsneets-sneet 6 INVENTOR (2l/an CI Dai za/,lf

iff/f@ ATTORNEY Feb. 5, 1957 A. c. DAVIS l coP WINDER Filed Dc. 31, 1954 s sheets-sheen 7 F/q: I4-

l, Ha G G la, IW 54,

ATTORNEY Feb."5, 1957 l A. c. DAVIS 2,780,418

coP WINDER Filed Dec. 31, 1954 s sheets-sheet s ATTORNEY United States Patent O COP WINDER Allan C. Davis, Baltimore, Md., assignor, by mesne assignments, to Allan C. Davis, Baltimore, Md.

Application December 31, 1954, Serial No. 479,034

12 Claims. (Cl. 242-27) The present invention relates to an improved cop Winding machine and more particularly to a continuous, or automatic Winder for producing coreless compact rolls of thread kno-wn in the industry as cops to be used in the weaving of various fabric materials.

There is la great demand for a compact and accurate cop winding machine. This is primarily brought about by the speed and automatic features of the modern weaving machine. The size, density, type of wrap and the accurate winding of the cops are becoming more and more important in increasing the eiciency of the weaving machines. It is to meet this need that the present machine has been developed.

When thread is iirst manufactured, it is wound in large rolls of cone or cylindrical shape. lf the thread is to be used in weaving, then it must be rewound into cops of definite size and density.

The principal features of the machine are that it is compact and unfailing in continuous and automatic operation. lt is so compact and automatic that it requires very little attention in its normal operation so that a single attendant may operate a number of the machines with little effort.

One object of the invention is to provide a machine which may be continuously operated at uniform speed.

Another object of thel invention is to provide a machine which may be easily adjusted for the winding of different length cops.

A further object of the invention is to construct a ma* chine of this character having a minimum number of operating parts.

A still further object of the invention is to provide a machine of this type having high production efliciency with a minimum amount of maintenance.

While several objects of the invention have been set forth, other objects, uses, and advantages of the machine will become apparent as the nature of the invention is more fully disclosed and which is shown in the accompanying drawings forming a part hereof and in which:

Figure l is a side view in elevation of the machine.

Figure 2 is an enlarged fragmentary front elevational view of the machine. i

Figure 3 is a horizontal sectional view taken on line 3-3 of Figure 2 with the cop removed.

Figure 4 is a fragmentary rear view in elevation showing the cop holding means.

Figure 5 is a fragmentary vertical sectional view taken on line 5 5 of Figure 3 showing a part of the finished wound cop.

Figure 6 is a fragmentary View in front elevation of the cop holder guiding cam.

Figure 7 is a fragmentary vertical sectional view taken on line 7-*7 of Figure 3.

Figure 8 is a fragmentary vertical sectional view taken on line 8 8 of Figure 2.

Figure 9 is a view in side elevation of the thread tension device and electric switch for disconnecting the elec- 2,780,418 Patented Feb. 5, 1957 ICC tric power to the cop winding motor when the thread is Figure 1.0 is a view in side elevation of the multiple cam assembly for controlling a number of the various operations of the machine.

Figure l1 is a fragmentary plan view of the control valves operated by the two smaller cams in the cam assembly.

Figure 12 is a fragmentary view in side elevation showing the adjustable support for the follower of the greater cam surface of the cam assembly.

Figure 13 is a sectional view taken on line 13-13 of Figure 12.

Figure 14 is a top plan view of the thread cutting elements in normal open position.

Figure l5 is a View similar to that shown in Figure 14 in which the cutter elements have moved to a point where the thread would be severed. y

Figure 16 is a fragmentary detailed plan view of the cop ejecting element, partly in section.

Figure 17 is a fragmentary detailed view in side elevation of the worm drive for moving the adjustable reciprocating member which in turn guides the thread upon the winding spindle.

Figure 18 is a sectional view taken on line 18-13 of Figure 17.

Figure 19 is a schematic electric wiring diagram for the electric circuit Iactuating and controlling the operation of the machine.

ln the drawings, like reference characters are used to indicate like parts throughout the several views.

The machine is mainly supported upon a horizontal base 1 having legs 2. There are two driving motors for operating the machine. The spindle driving motor is located below the upper base section 1 1as shown at 3. The second driving motor 4 is located upon the upper surface of the base 1. The spindle motor 3 operates continuously and at constant speed. The motor 4 operates the cam assembly shown more fully in Figure l0.

Extending above the top surface of the base 1 is a xed horizontal shelf 5 partly covering the upper surface of base 1. Located on the upper surface of the shelf 5 are a pair of supporting tables 6 and 7 having spindles 8 and 9 for the rolls of yarn or thread from which the thread is to be taken. The type of thread or strand used depends upon the type of material to be woven since the machine is designed to take practically all of the well-known threads including threads of both synthetic and natural origin. The reason for supporting the two rolls in close proximity is so that the trailing end of the roll connected to 'the Winding spindle may be connected with the leading end of the next roll to have a continuous threadl going through the machine. When the thread begins to feed from the second roll a new roll is put in the place of the exhausted roll and its leading end is tied or connected to the trailing end of the roll now being fed onto the winding spindle.

In Figure 1 there'are shown two rolls 1li and 11 mounted upon the spindles 8 and 9 respectively. The trailing end of the thread 12is connected to the leading end of the thread 1'3 from roll 11 by the knot 14. The trailing end 13 of the roll 1l will in turn be connected with the leading end` of a new rollto occupy the spindle 8 after the roll 10 has been used and the machine is being fed from roll 11.

Extending upwardly from the shelf 5 of the machine and located substantially midway between the roll supporting spindles 8 and 9 is an upright 15. The upright A supports the thread guide 16 and the casing 17 for supporting the electrical leads between the motor 4 and the switch 1`S.

Thev motor 3"is connected only to the cop winding spindle 19. Attached to the outer end of the shaft of motor 3 is a pulley 20 and connected to the lower end of the spindle is a pulley 21 and extending between the two pulleys is preferably a V belt 22 which will operate the spindle when the motor shaft is rotated. The spindle may be made in a single piece, or it may be made in separate pieces xedly connected to rotate as a single element. The lower portion 19 of the spindle is cylindrical and is carried within a bearing 23 beneath base 1. The lower cylindrical portion of the spindle rotating within the bearing housing 23 is provided with means, not shown, for maintaining the spindle in proper longitudinal relationship with the bearing. Surrounding the upper end `of the lower cylindrical portion of the spindle is a ange 23 Figure 5 including a xed collar 23" extending upwardly therefrom and which is secured to the bearing housing 23 by the screws 24, the bearing being secured to the base by screws 25.

Beginning at the top edge of the collar 23 and extending upwardly the spindle takes the cross-sectional form of a tapered triangle or other convenient flat sided shape 19. This triangular portion extends upwardly for a distance at least as far as the thread travels in being wrapped into a cop. Furthermore, the at sides of this triangular portion are tapered inwardly as they extend upwardly.

Extending above the triangular tapered portion 19 of the spindle, there is a sma'ller upper cylindrical portion 19" which extends upwardly from the flat sided portion 19 for a convenient distance to guide the cop as it is being pushed up on the spindle.

The cop is wound about the lower flat spindle portion 19' and is guided along the winding area by a thread guiding element such as a loop 26 carried by an arm 27. This arm 27 is xedly secured to the upper end of shaft 28 by a set screw 29. The shaft 28 is slidably supported in a bearing carried by the housing 30, which is in turn mounted upon a base member 31 secured to the base by the studs 32. To the lower end of the slidable shaft 28 at 33 is pivoted the upper end of a short connecting rod 34.

In order to reciprocate rod 34 and thread guide 26, the lower end of the spindle 19 has thereon a worm gear 35 txedly secured to the spindle 19 by the set-screws 36 and 37. Extending outwardly from one side of the bearing housing 23 is boss 38 which has therein a bearlng for supporting pinion 39 positioned to engage the worm 35. This take-off substantially reduces the speed of the pinion 39. The pinion 39 has extending therefrom in hub 39', crank pin 40 on block 41 slidable in a f bayonet type slot carried in the hub 39', crank pin 40 passes through the lower end of connecting rod 34. The slot in hub 39 runs diametrically across the axis of the pinion and is fixed in po-sition by the set-screws 42 and 43: In operating position the pin 40 is off-set from the axls of the pinion 39, to give the pin 40 an eccentric motion as the pinion 39 is rotated about its axis.

For convenience in setting the block 41 in the pinion hub the block has thereon pointers 44 and the hub has thereon graduations 45. These graduations may be marked to indicate the diameter the wound cop is to take. The greater the eccentric movement of the pin 40, the greater the distance of the movement of the thread guide loop 26, which determines the diameter of the cop being wound in the construction shown. The pinion 39 has extending therefrom shaft 46 extending through the boss 38 as illustrated in Figure 18, and a bearing 47 is in the boss. The pinion is held against lateral displacement by the inner flange of the pinion bearing against one side of the boss and by washer 48 and nut 49 on the opposite side of the bearing inthe boss.

ln order to move the cop lengthwise in winding upon the spindle and to doff it therefrom, the hollow coneshaped member 50, Figures 2, 3 and 5, known in the trade as a winding head, or trumpet surrounds the spindle, and ares upwardly. This winding head is mounted upon a carriage 51 by screws 52. The winding head has a slot 50' extending through its entire length through which the Athread 12 extends to the Winding spindle from loop 26. The carriage also has a slot 51 extending entirely through one side thereof in line with the slot 50 in order that the thread may be moved through one side of both the winding head and the carriage. The carriage is slidably mounted upon suitable upright members 53 and 54 extending upwardly from the top of the base 1. These upright members are in a plane parallel with the spindle 19. The tapered opening extending through the winding head surrounds the spindle, that is, the spindle 19 extends and rotates freely withinthe opening of the winding head. The carriage is provided with shoes 55 and 56 on the cover 51 of the carriage for slidably engaging the upright members 53 and 54 thereby allowing the carriage to be slid up and down on the upright members.

The carriage has on its underside at cach end adjacent the upright members a pair of lugs 57 and 58. Connected to these lugs are link members 59 and 60 for moving the carriage vertically in a reciprocatory motion up and down the carriage guide members. Secured to the rear of the carriage is a bracket 61 carrying a pair of cop gripping elements 63, 64 for gripping the sides of the cop at the completion of the winding operation. The bracket 61 is mounted on the carriage by the screws 62. These gripping elements 63 and 64 are adjustably fixed to a pair of supporting members 65 and 66 by the screws 67 and 68. The supporting members 65 and 66 are pivotally mounted on the bracket 61 by the shouldered screws 69 and 70 which extend through elongated apertures 71 and 72, allowing sliding and pivoting of members 65 and 66 on the screws 69 and 70. These apertures extend inwardly and downwardly through the supporting members 65 and 66 at an angle of approximately 30 degrees to the spindle. Stops 73 and 74 limit the outer movement of the members 63 and 64. The members 63 and 64 are kept in their outward position by a tension spring 75, with ends xedly secured to the members 65 and 66 by the screws 76 and 77. On the lower portions of the members 63 and 64 are pins 7S and 79 extending outwardly from the face of the members for engaging a vertically extending cam or track hereinafter described.

For raising and lowering the carriage 5l there is provided a pair of arms one of which is shown in Figure l and designated by numeral 80. One end of both these arms is hinged or pivoted to a shaft 81 carried upon the lower part of the frame. The arms are tied together by a tie rod 82 adjacent their outer ends. The outer ends of the arms are movable through a defined arc and are pivotally connected with the lower ends of the link members 59 and 60 by pins 83 while the upper ends of the links are connected with the lugs 57' and 58 by the pins 84 and 84. One of the arms 80 carries a cam following roller 85, Figures l0, l2 and l3. The bearing for the roller is within the roller and is supported upon a threaded stud 86, which extends through a slot Within the arm for adjusting the roller relative thereto. An Lshaped bracket 87 is provided for controlling the movement of the adjustment, the bracket having an aperture at its upper vertical end to receive stud S6. Secured to the arm and at right angles thereto is a short foot 88, and secured to the foot 88 and extending therefrom is a fixed bolt 89 on which are nuts 9i) and 91. The lower portion 87 of the bracket 87 is provided with an aperture to receive the stud 89 between the nuls 99 and 91. By this arrangement the roller and supporting stud 86 may be moved by loosening the nut 92 and allowing the stud 86 to move within the slot in the arm then by moving the nuts 90 and 91 in the desired direction, after which the nut 92 may again be tightened.

A multiple cam unit 93 ixedly secured to a shaft 93 moves the outer endof the arm 80 through its prescribed arc. This cam unit has three cam surfaces, surface 94' torreceive the roller 85 carried by the arm 80 and later referred to as the greater cam surface. The other two cams are much smaller in size and are designated by the numerals 95 and 96. The cam 95 controls the operation of the shaft 106 of cop holder or tail stock 97 for con- -tacting the outer end of the cop while it is being wound, and the cam 96 controls the cop discharging means. The shaft 93' has ixedly secured thereto a gear 98 which engages a worm gear 99 mounted on the shaft 100. This shaft 100 is connected by a belt 101 to the pulley 102 onmotor 4.

The cop holder or tail stock is shown in detail in Figure 8. The holder has an upper body member 103, a lower body member 104, and a sleeve member 105. The lower end portion 105' of the sleeve is hollow and recessed in the form of an inverted cone and conforms to the upper end of the cop. The portion 103 is mounted on the lower end of the shaft 106 by a split ring 107 adapted to iit within a suitable groove 107 adjacent the end of the shaft. Located on the side of the split ring and adjacent the cone-shaped end of the rotatable member is a ball bearing race 108. The body portion 103 rests upon the upper surface of the split ring and the body portion 104 is held against the under surface of the ball bearing race by the housing 105 which in turn is held in position by one or more set screws 109.

The cop holder shaft 106 extends upwardly through and above a cylinder 110, which is supported upon the side members 53 `and 54 by cross member 110. Secured to the shaft 106 within the cylinder 110 is a piston head, not shown, which is at the bottom of the cylinder when the cop holder is positioned at its lowest point adjacent the winding head 50. At this time spindle portion 19 extends into opening 106 in the cop holder shaft 106. There is no pressure on the cop holder except that of the shaft 106 during normal winding operations.

After each individual cop has been wound and just after it is moved upwardly 01T the spindle 19 the thread is severed by a pair of slidable plates 111 and 112 having formed therein circular knives 113 and 114. These sliding plates are in a groove in the carriage 51 just below the winding head and extend substantially the full width of the carriage. Sliding action is given the plates by elongated cam bars 115, 116, 117 and 113 positioned along the inner faces of the carriage guide and supporting members 53 and 54. The upper outer plate 112 is in two parts, 112 and 112, and these two parts abut each other along their edges 119 and 120 and adjacent the edge of the circular knife 114. The thread entrance slot into the upper knife area of the plate 112 is designated by the numeral 121, and the opening to the knife' area 113 in plate 111 is designated by the numeral 122. The knife plates are held in slidable contact by the top 51" of the carriage. Vertically through carriage cover 51" is an opening for bearing member 123, held by spring 124 in sliding bearing Contact with part 112 of the blade 1-12 to keep it in close cutting relation with blade plate 111.

The circular edges of the knife openings in the two plates normally coincide as illustrated in Figure 14, for within this opening the spindle 19 rotates during the winding operation and it is not until the carriage 51 moves the knife plates above the upper end of the spindle that they operate to sever the thread. Referring first to Figure 2 and then to Figures 5, 14, and 15, the knives are located below the winding head or trumpet 50 on the carriage 51. The cop is moved up the spindle, as shown in Figure 5, by the winding head on carriage 51. While the carriage is in its lower position during the winding of the cop, the top knife plate 112 is held in a position toward the right side of the machine, as viewed in Figure 2, by the cam 117, and the bottom plate is held to the 'left side of the machine by the cam` 116. When the wind- 6 ingoperation is completed and as the carriage is moved upwardly to discharge the cop` and approaches the top of its travel, the knives pass up and over the top end of the spindle 19, after which the cam 118 moves the top plate 112' to the left side of the machine and the cam 115 moves the bottom plate 111 to the right side of the machine, as shown in Figure 15, causing the edges of the circular knife to move over and under each other and beyond their respective cutting edges. The ends of both the top and bottom knife plates are slotted at 125, 126, and 127, 128 respectively to allow for the clearance of the cams operating the opposite plates. The opening 121 in the plate 112 and the opening 122 in the plate 111 coincide as shown in Figure 14 for allowing the thread to pass into the knife opening to the winding spindle when the carriage is lowered to normal winding position.

After the carriage 51 has been raised a predetermined distance the cop holder is raised out of contact with the upper end of the cop. The timing of this lifting is regulated by the rotary cam 95, shown in Figure l0. in the path of cam is a roller 129 on pivoted lever 130 for depressing valve stem 131 of valve 132. Lever 130 is pivoted on the valve casing by a pin 133. Extending 'oelow the pin 133 and pivoted thereto is a second arm 134 having a portion 134 adapted to operate the arm 1311 to depress the valve stem 131V having means 135 for attaching a rod 135 which in turn is connected with a foot pedal 137 for manually operating the valve 132. A spring 13b keeps the arm extended toward the cam 95. The arm when depressed will operate the valve stem 131 to open the valve and allow for the passage of air through the valve from the air supply line 138 to the line 139 to supply air to the cylinder 110 which will raise the cop holder 97. The exhaust side of the valve 132 is open to the atmosphere when innormal position, but closes when the stem is depressed by the cam 95 and directs the air under pressure coming from the supply line 138 into the air line 139. On the way to cylinder 110, air line 139 passes through valve 139', the valve stem, 139 of which is operated by lever 139'" pivoted at one end on the valve 139 and the free end of which has thereon a roller 147.

When the carriage has been moved up to a point where the spindle 19 is cleared by the thread cutting knives, the cam 96 operates a valve 140 similar to that just described for lifting the cop holder. A roller 141 connected to a suitable arm, is adapted to contact the rotary cam 96 for operating a valve for admitting air from the supply line 138 into the air line 142 which leads to the bottom of cylinder 143 which operates, through the piston connected to the rod 144, the cop discharging device.

rPhe cop discharging device is located directly above the vertical axis of the spindle and comprises a swinging rack having L-shaped side arm members 145 and 146 and a plate 147 connecting their outer ends, the opposite ends of the arm members being iixed to a rotatable shaft 14S mounted in brackets 53 and 54on upright members 53 and 54. Fixedly secured to one end of the shaft 148 is one end of an arm 149 and pivoted to the opposite end -of the arm is the connecting rod 144. Springs 143 return the cop discharging elements to vertical position, after theyhave been tilted to horizontal by the admission of air to cylinder 143.

Projecting up through the plate 147 Figure 16 and secured thereto is a rod 150 for supporting cop grippers, comprising a pair of hinged semi-circular gripping elements 151 and 152. These cop gripping elements are supported on one end of the arms 153 Iand 154, 155 and an arm corresponding to 155 which is not shown. The opposite ends of the arms are pivotedly connected with the rod 150 and have cooperating therewith a coiled spring 156 for normally holding the gripping elements closed. This closed position of the two members 'is determined by the set-screw and lock nut 157 and 158 re- 7 spectively. Each of the gripping elements is provided with additional spring clips 159 and 160 for aiding in holding the cop. The gripping elements 151 and 152 are opened and closed by a rack 161 and a pinion 162. The pinion is secured to a shaft 163 which is rotatably mounted upon an extended portion 147 of the plate 147 and a bracket 164 located at the upper end of the support rod 150. The shaft 163 has at segments 163 between the pairs of supporting arms of the cop gripping elements. The at surfaces of the shaft segments are parallel with the inner surfaces yof the arms when the cop gripper is in closed position. The rack 161 is fastened to a sliding bar 165 by screws 166 and 166. The bar 16S is slidable through apertures in the arms 145, 146. On each end yof the sliding bar 165 are rollers 167 and 167 for contacting stationary cam members 168 and 168 on brackets 53 and 54 as the discharging device is moved from a vertical position to a horizontal position as shown in Figure l. Plate 147 then engages stop members 147 on upright 53 and 54.

When air is admitted to line 139, it passes through thc valve 139', which is normally open, to raise the cop holder 97, and when it is raised, the cop discharge is swung down by opening valve 140, there is a slight overlap in the operation of cams 95 and 96. When the cop discharge is swung down, it closes valve 139 by plate 147 passing from the roller 147' on the free end of lever 139'", holding the air in cylinder 110 and holding the cop holder 97 up until the return of the cop discharge to again open valve 139' and allow the opening of line 139 to the atmosphere. The cop holder passes through the cop discharge when the latter is vertical.

Thread furnished to the machine spinning spindle must be under constant uniform tension and this is provided by a tensioning device particularly illustrated in Figure 9. This device is mounted on the bed 1 of the machine on the bracket 169 and consists of pairs of non-rotating disks 170 and 171 and a pair of grooved wheels 172 and 173. The grooved wheel 173 is mounted on a swinging arm 174, which is pivoted at 175. This arm 174 and wheel 173 are held in the direction of the arrow by a leaf spring 176 secured to the frame or switch Ahousing at 177. The free end of the spring is provided with a roller 178 resting against the pivoted arm 174 adjacent the grooved wheel 173. Extending outwardly from the switch 179 is a pin 179', the outer end of which rests against the spring 176. The pin operates the electrical switch carried within the switch housing 179. The pin 179 is adapted to operate the switch to close the electric circuit when depressed and to break the circuit when extended. The double disks 170, 171 and the grooved pulley 172 are all mounted upon the frame 180.

There is a mechanically operated electric switch which holds the electric circuit closed to operate the cam operating motor 4 after the cam has begun its single ror tating cycle similar to the switch in the switch housing 179 as described for the thread tensioning means. The control element for the switch comprises an arm 181 having a roller 182 which rolls in contact with the outer rim 183 of the cam 93. Part of the outer rim 183 has a slightly reduced diameter along the area 183. While the roller 182 is within the area 183 the lever 181 is in position to break the electric circuit, but when the roller moves to the surface portion 183 the lever 181 operates to close the circuit.

Referring again to the cop gripping elements 63 and 64, and to the pins 78 and 79 together with the vertical cam for operating the elements, the cam is supported upon a bracket 184 on base 1 and is positioned vertically in line with the movement of pins 78 and 79. This cam is shown more in detail in Figure 6 and comprises stationary side members 185 and 186 which are spaced apart for a distance slightly greater than the combined width of the two pin members 78 and 79 when they are in abutted relationship, Ias shown in Figure 4. Ad-

jacent the lower ends of the cam members 185 and 186 are a pair of hinged elements 187 and 188. These are hinged adjacent the bottom of the cam members 185 and 186 and extend inwardly to a prolongation of a line extending centrally of the space between the cam members. The lower ends of these hinged elements are cut at an angle and abut along a line 189 to form a pointed end 190 and extend over the opening between the cam members 185 and 186 as shown in Figure 6. The elements have pins 191 projecting through openings 192 in bracket 184. Secured to the back of the cam support bracket 184 is a rib 193, and attached to this rib are leaf springs 194 and 195 for normally holding the hinged elements in abutted relationship.

In Figure 19, the wiring circuit for operating the two motors is diagrammatically illustrated. Current is furnished from the supply lines 196 and 197 through a control switch 198. Referring in particular to the cop winding spindle motor 3, the current flows through lead 199 and the terminal 200 to one side of the motor, current to the other terminal of the motor flows through lead 201, the electric switch 179, operated by the element 176, shown in Figure 9, lead 202 to terminal 203. The switch within the housing 179 is adapted to break the electric circuit to the motor 3 thereby stopping the motor should the thread 12 get broken or run off the roll.

Current to one side of motor 4 is furnished through leads 201, 284 to the terminal 205. The initial current to the other terminal of the motor is furnished through leads 199, 206, 207 to the switch 18, through switch 18 to leads 208 and 209 to the terminal 210. After the cam 93 moves in the direction of the arrow a sufficient distance to bring the roller 182 onto the cam surface 183, it closes the switch 211 after which the current travels through leads 199, 206, 212 and through the switch 211, lead 209 and to the terminal 210.

1n order to prevent a collection of dust and particles from the thread during the ccp winding process, there is provided an air line 213 for directing air around the lower triangular portion 19 of the spindle, as shown best in Figure 5, after the carriage has moved the wound cop upwardly from that area. There is also an air line 214 extending upwardly along one of the upright members 53 or 54 and to a flared nozzle 215 positioned to one side of and below the lower end of the cop at the position it has reached when engaged by the discharging elements. This is to furnish a blast of air to the lower end of the cop about the time the thread is cut to prevent the cut end of the thread from unwinding during the time it is being engaged by the discharging elements and starts its discharge movement.

The air is furnished for both lines from the main supply line to a valve 216. This valve is provided with an arm 217. Connected to the arm 217 and to the carriage lifting arm is a spring 218. The tension of the spring is so calculated as to leave the valve closed when the arm 80 is in its lowermost position and to open the valve when the arm has been moved a predetermined distance by the cam 93.

The operation of the machine is as follows: The electric wires 196 and 197 are connected to a conventional electric outlet box by the plug 219. The rolls of thread are placed on the spindles 8 and 9 and connected as described. The leading end of the thread, from one of the rolls is threaded through the guide 16 on the support 15 over and through guides 220 and 221 on the cross member on the upper end of the side supports 53 and 54 and down to the tensioning means shown in Figure 9. The thread 12 passes between the disks 170, over the grooved wheel 172, between the two disks 171 and over the grooved wheel 173 carried by the rocking arm 174 to the spindle 19. It will be noted that the thread 12 leading to the spindle is passed over the wheel 173 in the direction to press the arm 174 against the leaf spring 176 `ends of its upper and lower-travel. being wrapped upon the 'spindle between the .points A keeping the switch 179 closed .las .long as ,the rotating spindle is drawing the cord throughthe tensioninglmeans.

The thread is then passed through the eye 26 of the member 27 through the slot 50 inthe winding head, or trumpet, Sti and aro-und the iiatv sided portion 19 of the spindle 19. In the beginning several wraps of the thread are made about the lower portion 19 of the spindle, after which the toggle 222 of the switch 198 is operated to supply electric current to the motor 3 operating the spindle 19. As the spindle is rotated the thread is wound into a cop. There are a number of elements which help directly in giving the cop the particular winding it has. It has no core, it is cylindrical in shape throughout the mostpart of its length and it unwinds from a relatively lsmall area adjacentv the last wound end. The diameter or size of the copis regulated by the amount of `eccentric action given the `pin'4ll, which moves the arm 27 a greater distance and therefore moves the thread 12 a greater distance up and down the spindle within the slot Sil. It will be remembered that the diameter of the cop can be no larger than the diameter of the large end of the winding head. An example of the `wrapping range of the spindle isillustrated in Figures 2 and 5 in the latter of which the arm 27 is shown at the Thethread is shown and E. As the winding continues the thread on the spindle piles up. When-the pile is of suchdiameter to contact the inner surface of the winding head, thetaper of the surface of the winding head will slide the pile Aup the spindle as the wrapping continues. The cop holder is in position `surrounding the spindle to contact the upper end of the cop as it emerges from the winding head. As additional thread is wrapped about the bottom of the cop, it is forced up against thecop holder until the collar .me on the shaft 106 moves up into contact with the lever 224 whichoperates the switch 18 starting the motor 4. The motor, `asstatedrotates the camwheel 93. `Referring in particular to Figures 1 .and l0, as the cam wheel is rotated in the direction of the arrow, theifollower 8S contacting surface 94, begins tomove the carriage 51 and the winding head upwardly through its connection to the arm titl. At first the movement is very gradual and moves the carriage a shortdistance when the upward motion of the carriage is momentarily stopped and dropped for a very short distance iby the change in direction of the cam at the point 94a to slightly loosen the cop from the winding head andto immediately make the'initial turns for a new cop after which there is a-dwelling period before the carriage again starts its Vupward movement. As the cam wheel continues to rotate, the follower 85 again begins to move the carriage '51 upwardly, the members 63 and 64 `are movedinwardly to'contact the cop, helping to support vthe same as it is being moved upwardly by the winding head. These 'members are moved in toward the cop by the separationof the lower ends of the members 65 andi-66, which pivot upon the pins 69 and 70 operating within the slots 71 and 72. The lower ends of the members 65 and'66 are separated by the extended pins 78 and 79 which come into contact with the point 19t? of the `two members 1187 and .188. The point 19d moves between the two members 78 and 79 causing them to move outwardly and continue along the outer surface of the members 185` and 186. When the carriage has reached a point to where the cop is to be dotted from the spindle, the pins 78 ,and 79 move past the top of the cam members '18Sandr186, releasing the members 63 and 64 from thesiderof the cop, after which the pins arefagainbroughtfinabutting-relationship by the spring '75. When the'carriage moves down, the members now being in` abuttingrelationship, movedown through the space between thetwo cam members "185 and 186 and out past Athe resilientlyheld'members 187'and '188 where they are in "positionto begin aneWcyCle.

When the `follower reaches -a point ,onlhecam surface at approximately 94h, the cop holder or tail stock operating cam 95 comes into contact with the roller 129 which operates the valve 132, closing the opening to the atmosphere and directing air through the air line 139 to the under side of the piston carried by the cop holder shaft 1116 in cylinder 11) andraising the cop holder out of contact with the upper end of the wound cop, after which the carriage and winding head are moved rapidly to their upward position by the `direction of the cam surface from the point 94h to the point 94e.

During the last stage of the upward movement of the carriage and after the carriage is beyond the outer free end of the spindle 19", the plates 111 and 112.are operated to sever the thread adjacent the bottom of the cop. Normally the knives are carried as shown `in Figure 14 around the spindle in open position .by .the knife plates riding along the edges of the cams 116 and 117 and as the knives near the top, ythe cam 118 moves the upper plate 112 to the left and the cam 115 moves the lower plate 111 to the right causing the knives to move tothe position shown in Figure l5, severing the thread 12 just below theA bottom of the cop. When the carriage starts its return travel the cams 116 and 117 operate to move the knife plates back to the normal position as shown in Figure 14 and over the outer end of the spindle.

When the carriage approaches the end of its upper travel, the cop'enters the opening between the two discharging elements 151and 152 and the fingers 159 and 169 and leaves spindle 19". As the cam 94 continues to rotate, the cam operates to continue to force the cop further `into the elements 151 and 152 of the discharging device. When the follower 8S reaches a point indicated at 9id, the cam 96 comes into contact with the roller 141 whichoperates the valve 14d, which releases air into the bottom of the cylinder 1413, forcing the enclosed piston, which is secured to the inner end of rod 144, outwardly. Through the linkage previously described the pivoted support carrying the cop discharging mechanism is tilted outwardly about the axis of the shaft 148 to a horizontal position as indicated by the dotted lines in Figure l, and air is trappedin the cylinder 111i by the closing of valve 139. As the discharging mechanism is moved to its horizontal position, the roller 167 comes into contact with the stationary cam 16S' moving the lbar 164 to the right, looking at Figure 16, thereby ro tating the pinion 162 and shaft 163 to spread the arms 153 and 154 to release the cop from the members 151 and 152, after which the cop drops to an appropriate receiver 224. As the roller 141 leaves the cam 96 the valve 14d is closed to the air supply line and the piston on the rod 14d returns to its normal position under the action of springs 143e which return the discharging mechanism to its normal position to open valve 139 and to receive the next wound cop. While this operation has been going on the valve 216 has been opened and air has been di rected around Ithe base of the spindle to blow away the dust and particles of thread that have accumulated during the winding of the previous cop. Also, air has been directed to the nozzle 215 to prevent the tail end of the cop from unwinding, and when the arm 8i) Iis returned to its normal resting place the valve 216 is closed.

if for any reason it becomes necessary to raise the cop holder when the machine is not actually running, the

f foot pedal 137 will operate valve 132 through the connecting rod 136 and the pivoted member 134.

lt should also be noted that in the operation of the cam 93 the contact control arm 181 carrying the roller `182 moves along the outer surface 183 and 183 of the cam 93 and is so located as -to come to rest at a point in the area 183.

As switches 18 and 211 are both used to close the electric circuit to the motor 4, the first electric impulses are sent to the motor by operation ofthe switch 18 by the 'raising'of the cop holder or tail stock. As soon as the 11 motor begins to operate, it rotates the shaft 93' and as the cams move in the direction of the arrow the roller 182 is raised by the portion 183 of the cam 93 closing the switch 211. When the cop holder switch operating means 223 has moved beyond the arm 224 of the switch 18 the arm is released and the switch is opened; however, the switch 211 keeps the circuit closed to the motor 4 as long as the roller 182 is upon the raised cam surface 183. When the roller 132 drops again onto the cam portion 183' the motor is cut oi until the tail stock again trips the switch 18, when the same operation is repeated for each winding of a single cop.

As the cop is moved upwardly -by the winding head on the movable carriage, the spindle 19 continues to rotate, and as the cop is moved away from the lower triangular portion of the spindle, the thread begins to wrap about the spindle to start the winding of a new cop. As the winding head is moved upwardly, the thread fed to the spindle moves through the slots 5G' and 51 allowing a substantial mass to wind upon the spindle while the wound cop is being dotted from the spindle. However, this mass does not build up to such proportion as to not be able to pass through the lower opening in the carriage and winding head. When the winding head and carriage are returned to their lower positions, the -thread 12 passes up through the slots 51' in the carriagek and 50 in the winding head in order that the winding will take place within the winding head.

It is to be understood that while a particular embodiment of the invention has been illustrated and described tin detail, this is not intended as a limitation, as it is obvious that various changes and modifications may be made by one skilled in the art and still be within the scope of the invention.

What is claimed as new and is desired to be secured by Letters Patent is:

l. A cop winding machine comprising in combination, a spindle including a supporting bearing for one end thereof adapted to be rotated in a xed longitudinal position and having a winding portion extending outwardly from one side of the bearing for winding a thread thereon into a tight compact mass, means to feed thread to be wound to a section of the spindle, a winding head having an opening therethrough surrounding said spindle and positioned adjacent the section of the spindle upon which the thread is being wound, the outer portion of the opening in the winding head being tapered outwardly from the spindle bearing to form an inner tapered surface, the winding head having a slot longitudinally of the head for admitting the thread to the spindle, said wound mass being advanced along the spindle toward its outer end as its mass is built up in contact with the tapered surface of the winding head, means for moving the winding head along the spindle between its winding position and a point beyond the outer end of the spindle for dofiing the wound mass from over the outer end of the spindle after the wound mass has been built up along the spindle for a predetermined distance, movable receiving means located beyond the outerend of the spindle for frictionally receiving the wound mass from the spindle, means for severing the thread to the wound mass after the winding head has passed beyond the outer end of the spindle and means for operating the receiving means to discharge the wound mass from the machine.

2. An automatic cop winding machine comprising, in combination a spindle including a bearing adjacent one end thereof for rotatably supporting the spindle in a fixed longitudinal position and means for rotating said spindle, the spindle extending beyond the bearing to receive thread to wind a cop thereon, means to feed thread to be wound to a section of the spindle, a winding head having an opening therethrough surrounding the spindle and positioned adjacent the section of the spindle upon which the thread is being wound, means including said head for moving the cop along the spindle and dothng the same from over the outer end thereof opposite the bearing, when the cop windings have reached a predetermined mass, a cop discharging unit positioned beyond the outer end of the spindle for receiving the cop from the cop moving means, the discharging unit being swingingly supported upon the machine, means for automatically swinging the discharging unit from cop receiving position and discharging the wound cop from the discharging unit outside the area in which the cop was first received.

3. In an automatic cop winding machine comprising, in combination, a rotary spindle supported at one end and adapted to be rotated in a xed longitudinal position, and means for rotating said spindle, a winding head having an opening therethrough positioned about the said spindle, means for supplying thread to the rotating spindle for forming a cop, a hollow cop holder extending over the end of the spindle and in contact with the wound end of the cop during the winding thereof for applying pressure thereto in the direction of the winding head, means for moving the wound cop along and over the other end of the spindle and means for withdrawing the cop holder from contact with the vcop during the final travel of the cop over the said other end of the spindle, adjustable switch operating means supported on the cop holder and a switch operatable by the said operating means for closing an electric circuit to the cop moving means for initiating the movement of the cop dofing means.

4. In a cop winding machine, the combination of a rotary spindle supported at one end and adapted to be rotated in a fixed longitudinal position, a winding head positioned about the spindle and having a lateral opening therethrough, means for supplying a thread to the rotary spindle through the said opening, a hollow cop holder extending over the other end of the spindle and in contact with the woundend of the cop during the winding thereof for applying pressure thereto in the direction of the head, a carriage means having an opening therethrough for supporting the winding head, said carriage having supporting tracks extending longitudinally of the spindle for guiding the carriage parallel with the rotating spindle, means for moving the carriage and winding head along and beyond the spindle said other end to doif the cop therefrom, thread severing means carried on Ithe carriage back of the winding head, means carried upon the carriage tracks for operating the thread severing means as the carriage moves beyond the said other end of the spindle.

5. In a machine as set forth in claim 4 in which the severing means extend on opposite sides of the winding spindle during the winding operation and operate to sever the thread when the carriage is moved beyond the said other end of the spindle.

6. In a machine as claimed in claim 5 in which the severing means are carried upon a pair of sliding plates, the plates sliding upon the carriage and having means extending along the carriage tracks for operating the plates to sever the thread by traversing the thread extension in the carriage.

7. In a cop winding machine, the combination of a rotary spindle supported at one end and adapted to be rotated in a fixed longitudinal position, a winding head positioned about the spindle and having a lateral opening therethrough, means for supplying a thread to the rotating spindle through said opening, a carriage having a lateral opening therethrough, joining the head opening, for supporting the winding head, guiding means for the said carriage positioned parallel with the said spindle, a rotary cam for moving the carriage and winding head along the spindle to dofI" a cop therefrom, the ythread passing through said openings, means carried by the carriage outside the winding head for gripping the sides of the cop during the outward travel of the carriage.

8. Ina machine as claimed in claim 7 in which the cop gripping means has a pair of cam following pins carried thereon, a straight cam element extending parallel with the carriage supporting guiding means and positioned to be engaged by the following pins carried by the said gripping means to maintain the gripping means in gripping relation to a cop being ejected.

9. In a cop winding machine, a winding spindle supported at one end, means to rotate the spindle in a fixed longitudinal position, a carriage having a conical winding head thereon flaring toward the spindle and surrounding the spindle adjacent its -supported end, means reciprocating longitudinally of the spindle to feed thread for winding to the spindle within the head, means to move the carriage and head along the spindle to dol a wound cop therefrom and means on the carriage to sever the thread from the wound cop.

l0. A cop winding machine comprising in combination, a winding spindle and a non-rotating winding head, means to rotate the winding spindle continuously while winding successive cops thereon, means 'to supply thread to the spindle for winding successive cops, means to initiate the winding of a new cop before the thread end is cut from a completed cop, and means for severing and separating a completed cop from the newly forming cop and spindle, while the spindle continues its rotation, the continuous spindle rotation imparting continuous relative rotation of the completed cop with respect to the winding head,

1l. A cop winding machine comprising in combination, a winding spindle, means to rotate the same continuously while winding successive cops thereon, means to supply thread to lthe spindle for Winding successive cops, means to initiate the winding of a new cop before the removal of a completed cop from the rotating spindle, means for severing and separating a completed cop from the newly forming cop and spindle, while the spindle continues i-ts rotation, and means to control the movement of the completed cop immediately upon its separation from the spindle.

l2. A cop winding machine comprising in combination, a winding spindle, means to rotate the same continuously while winding successive cops thereon, means to supply thread to the spindle for winding successive cops, means to initiate the wind-ing of -a new cop before the thread end is cut from a completed cop, means to hold the completed cop circumferentially while separating the same from the Winding spindle and means including said holding means for severing and separating a completed cop from the newly forming cop, while the spindle continues its rotation.

References Cited in the le of this patent UNITED STATES PATENTS 2,209,208 Reiners July 23, 1940 2,369,606 Reiners Feb. 13, 1945 FOREIGN PATENTS 188,195 Switzerland Mar. 1, 1937

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