US2639098A - Cop supplier - Google Patents

Description

May 19, .1953

w. SCHWEITER COP SUPPLIER 2 Sheets-Sheet 1 Filed Feb. 15, 1947 ATTORNEY May 19, 1953 w. SCHWEITER COP SUPPLIER Filed Feb. 15, 1947 2 Sheets-Sheet 2 ORNEY Patented May 19, 1953 cor SUPPLIER Walter Schweitcr, Horgen, Switzerland, assignor t Maschinenfabrik Schwciter A. G., a corporation of Switzerland Application February 15, 1947, Serial No. 728,833 In. Switzerland Mai-ch11, 1946 8 Claims. 1

This invention relates to mechanismsfor supplying empty cops to cop winding machines of the type in which full cops. are replaced by empty ones automatically at the end of the winding operation.

Existing types of automatic cop-winding machines usually include a magazine containing a limited. number of empty cops from which a cop is taken at the time of the cop change. But such a magazine must be replenished from time to time by hand.

Speaking generally, my invention provides a mechanism which conveys and automatically supplies empty cops to several cop-winders at such times as they are needed. Thus the invention eliminates cop magazines and the attendant necessity for replenishing such magazines by hand.

Briefly, I accomplish this result by for example causing the empty cops, each. carried in a traveling cup, having a cover with a nose or projection thereon, to continually pass hoppers each of which leads to a receiving cup on a cop -winder. An empty cop is released from the traveling cup into a hopper when the nose on the cup cover is contacted and the cover pushed aside by a trip or guard pawl located at the side of the hopper. Each trip or guard pawl is brought into contacting position by the control shaft of the respectively related winder about the time the receiving cup of the winder is delivering a preceding empty cop to winding location and returning to its starting or receiving station. In falling down the hopper, the empty cop strikes a withdrawing device which causes the guard pawl to be withdrawn to a position out of the path of the traveling cups and their covers. The empty cop, itself, thereafter continues its fall and drops into the receiving cup on the cop-winder to remain there until delivered to the winding station.

The accompanying drawings illustrate a preferred form of my invention with only a single cop-winder being shown. In these drawings Fig. 1 is a side elevation of the cop-winder, or say a single winding head of a multiple-head machine, and a section of the automatic cop supplying mechanism; Fig. 2 is a front elevation of the same from the line I-I of Fig. 1; Fig. 3 is a similar front elevation showing the release of a cop from the traveling cup; ig. 4 is a section at and adjacent a part of the cop supplying mechanism showing the mechanism at the time of the release of a cop; Fig. 5 is a front elevation of a copwinder, partly in section on the line II-II of Fig. 1, at the time of a cop replacement; Fig. 6 is a plan view of the cop-winder, partly in section to casing of gear box 4.

show some of its gearing; Fig. 7 is an enlarged detail view of the side of the upper end of a hopper; Fig. 8 is an enlarged rear View of the upper end of a hopper.

Only such parts of the automatic cop-winder are shown here as are necessary for the proper understanding of my present invention. For instance, the gear andthread guide of the copwinder, can be constructed according to my United States Patents No. 2,268,308 and No. 2,268,310 respectively.

Gear box I, mounted on longitudinal bars 2 and 3 on machine frame 4 contains the gear for driving cop driver-head 5 and also for operating the automatic cop change. The gears are driven from main shaft l5v by friction wheel 1 and friction disc 8.

To the casing of gear box I is fastened a fixed rod 5 which carries on its outer end a cop holder [0 in. which holder-cup i l is both rotatably seated and axially shiftable as shown in my U. S. Patent No. 2,268,310. Cop E2 is clamped between holder-cup I i and driver-head 5 during the thread winding process. The holder cup II and driver head 5 indicate the winding station at the winding head illustrated.

Hopper I4 is fastened by screw I3 to the front of gearbox l and runs obliquely upward to be fastened again at its top to Wooden beam 3 by screw 35. The bottom part of hopper I! is provided with front and rear limiting Walls ii and I8 respectively which have between them sufficient clearance to easily accommodate a cop I9. Below hopper I4. is provided a receiving cup or pan 20, to hold a cop I9, and which is swivellingly seated on pivot 22 carried on lever 2 1. Spring 23 causes receiving cup 26 to press against stop 24 on lever 2 i.

Inside gear box I is journaled control shaft 25 (Fig. 6) on which are rigidly mounted gear wheel 21 and cam cylinder 28. Groove 28 of cam cylinder 28 engages runner roller 3| ailixed to lever 30, onshaft 32 which is rotatably journaled in the Shaft 32 also carries lever 33,, which with its forked end 34 (Fig. 2) grips pin 36 on lever Lever 35, like lever 2!, is mounted on shaft ill which shaft is rotatably journaled in the casing of gear box I and in projecting holder 38. During the winding, of thread on a cop, shaft 25 remains stationary. But as soon as a cop is completely wound, a mechanism, not more particularly described here, actuates gear wheel 2'1 to cause one complete rotation of shaft 25 and with it a complete rotation of cam cylinder 28. For example, as before indicated by the reference above to Patent No. 2,268,308, the control shaft 25 may serve more or less the same purposes as the shaft M of that patent, and the mechanism shown and described in the said patent for driving its control shaft 4I, may be used to rotate the control shaft 25. This rotation of shaft 25 and cam cylinder 23 first turns levers 30, 33, 35 and 2I so as to swing receiving cup 28, holding cop I 9, into cop delivery position (Fig. 5). As arm 2I moves to return cup 20 to its receiving position spring 23 permits cup 20 to turn on pivot 22 so as to free itself of cop I8 which is tightly clamped to driver-head 5 and holder-cup II. Completion of the rotation of shaft 25 then turns the said levers back to return the receiving cup 20 to its starting position (Fig. 3).

On control shaft 25, outside gear box I is rigidly mounted lever 39, which by means of its pin 40, engages slot M of crank-arm 42, so that, as a result of the revolution of control shaft 25, crank-arm 42 is swung to and fro around the bolt 43 affixed to the side casing of gear box I. In the top arm of crank-arm 42 is articulated a. small rod 44, provided at its upper end with a barbed hook 45. On the underside of the upper part of hopper I4 (Figs. 7 and 8) two shoulders Or lugs 46 and 41 act as bearings for rod 48 on which, outside the hopper, is eccentrically mounted plate 50 which is provided with a hub 49. Riveted in plate 50 is a. bolt 5| around which the trip or guard-pawl 52 can swing to and fro across the outer surface of said plate. Two pins 53 and 54, also riveted in plate 50, act as limiting stops for guard-pawl 52. Since it is eccentrically mounted on rod 48, plate 58 falls forward because of its own weight but is held in the position shown in Fig. l, by its nose 55 coming to rest on stop 56 projecting from the underside of hopper I4. Another pin 51 is riveted at such a point on plate 50 that when said pin is engaged by the barbed hook 45 on rod 44, plate 58 is caused to assume the upright position shown in Figs. 4 and '1.

Slightly below shoulders 46 and 41, two additional lugs 58 and 59 are mounted on hopper I4, in which lugs is fixed a pin 60 around which a trip withdrawer or tongue 62, fitted with counterweight 6I can freely swing. The trip withdrawer or tongue 62 projects into hopper I4 through opening 83 and is so equilibrated with counterweight 6| that pin 63 inserted in counterweight 6I always lightly rests against rod 44, without however lifting said rod. The slightest pressure exerted on tongue 62 lifts rod 44 by means of pin 63, and consequently barbed hook 45 on rod 44 out of engagement with pin 51, thus permitting plate 50 to fall forward by its weight to the position shown in Fig. 1.

To machine frame 4 are aflixed columns 64 and 65 on which are fitted girders 66 and 61. Wooden beams 68 and I6 are fastened to upper girder 61 and lower girder 66, respectively. A number of traveling cups 69 carried in upright position on endless chains 14 and are guided between wooden beams I6 and 68, each cup 69 being provided at its bottom with a roller 10, running in grooves H in wooden beam I6, and at its top, with a pin 12 sliding in grooves 13 in wooden beam 68.

The mechanism for supplying empty cops to the cop-winder operates in the following manner: The rotation of control shaft 25 in the copwinder, as noted above, causes the receiving cup 28 to deliver an empty cop to winding position and then to return to its starting station. This same rotation of shaft 25 also swings crank-arm 42 to such an extent that it pushes rod 44 upward until barbed hook 45 thereon engages pin 51 on plate 50. Continued rotation of shaft 25 then swings crank-arm 42 back soas to pull rod 44 forward and thus, through barbed hook 45 thereon and pin 51, turn plate 50 to the erect position shown in Fig. 4. As a result of this upward turning of plate 50, pin 53 thereon lifts guard pawl 52 until the latter falls backward by its own weight and comes to rest against pin 54 On plate 58. If a traveling cup cover 11 happens to be in the path of guard pawl 52 at this momerit, guard-pawl 52 merely falls laterally on nose. 82 of cover 11 and continues its backward fall when cup 69 and its cover 11 pass out of the way. In the meantime receiving cup 28 has been swung back into position shown in Fig. 3.

When the next cup 69 is carried by chains 14 and 15 to hopper I 4, nose 82 on its cover 11 strikes guard-pawl 52 and cover 11 is held back by the guard-pawl so that as cup 69 continues on its way cover 11 is swung aside from cup 69 thus releasing cop 84. In falling down hopper I4, cop 84 strikes tongue 62 in the hopper causing pin 63 to raise rod 44. The lifting of rod 44 disengages barbed hook 45 thereon from pin 51 so that plate 50, and with it guard-pawl 52, fall forward to non-contacting position shown in Fig. 1. The cups 69 subsequently carried along above hopper I4 will now pass without the interruption of guard-pawl 52 and therefore will not release their cops. After striking tongue 62, cop 84 continues to fall down hopper I4 coming finally to rest in receiving cup 20, ready to receive it.

Where an empty cup 69 passes a cop-winder in which a cop replacement has just occurred, and therefore guard-pawl 52 is in contacting position, cover 11 of cup 69 will be merely swung aside without, of course, releasing a cop. In such case tongue 62 will not be actuated, so that guard-pawl 52 will remain in contacting position (Fig. 4) until a full cup 69 comes along and releases its con-tents.

It will be seeen: that although empty cops are continually passing a cop-winder, ready to be released to it, such release does not occur until there has been completion of the thread-winding process and the full cop has been replaced by an empty one and the cop-winder requires a new empty cop to hold it for the next replacement; also that the opening of an empty cop traveling cup does not result in the withdrawal of the guard-pawl from its operative position where it can effect the next required cop release. Also it will be understood that in practice there will be many cop winders, for example like that shown in Fig. 1, mounted on the rails 2 and 3, and that a single belt or endless chain of cop cups 69, 14, 15 may run along and serve many, and perhaps the whole, of this line of winders. Also there may be a. similar line of winders on the opposite side of the shaft 6 from the winder of Fig. l, and this second line of winders too may be served by the same belt of cops, as is apparent from Fig. 1. The cup belt may be driven constantly, or in some instances it may be suflicient to drive it intermittently. At some place the empty cups 69 of the belt, that is to say those that have lost their cops to winders, have new cops furnished to them. This can be by hand, or automatically by some appropriate mechanism. However the details of mechanism for this purpose, if such mechanism is used, forms no part of the present invention.

It will be understood that my invention is not limited to the details of construction and operation described above and shown in the drawings, except as appears hereafter in the claims.

I claim:

1. The combination with a plurality of copwinders, each having a control shaft, of a conveyor disposed adjacent said cop-winders, and continuously run along said cop-winders, a plurality of carriers for cops mounted on said conveyor, a cover for each cop-carrier to retain cops therein, and a trip at each of said cop-winders, operable by the control shaft of its respectively adjacent cop-winder to tripping position, to open said covers of said cop-carriers and release cops individually from said carriers. I

2. The subject matter of claim 1, characterized by the fact that the conveyor is an endless belt.

3. The subject matter of claim 1, characterized by the fact that trip withdrawers each disposed in a path of cops released from the carriers and actuatable by released cops traveling their paths, are provided to withdraw the trips from tripping position.

4. The combination of a plurality of cop-winders each having a winding station, a cop receiver to deliver empty cops to the winding station and a control shaft to cause the delivery of an empty cop to the winding station on the discharge of a wound cop from the winding station, of a conveyor disposed adjacent said cop-winders to deliver empty cops to said cop receivers, a plurality of carriers for empty cops mounted on said conveyer, a power device to drive said conveyor substantially continuously to carry empty cops past each of said cop receivers and a trip at each of said cop-winders operable by the control shaft of its respectively adjacent cop-winder substantially upon the delivery of a cop from the respective cop-receiver to the Winding station to release from said conveyor the cop thereon next coming to the respective cop winder to enable said cop to pass to the cop receiver of the cop-winder.

5. The combination with a plurality of copwinders, each having a control shaft, of a conveyor disposed adjacent said cop-winders, a plurality of carriers for cops mounted on said conveyor, each of said carriers having a cover thereon to hold cops in the respective carriers as the conveyor carries the carriers from cop-winder to cop-winder, a power device to drive said conveyor substantially continuously to maintain a supply of cops passing each of said cop-winders,

and a trip at each of said cop-winders operable by the control shaft of its respectively adjacent cop-winder to a position to individually trip said covers and to thereby separately release the cops from said carriers.

6. The subject matter of claim 5, characterized by the fact that trip withdrawers each disposed in the paths of cops released from the carriers and actuatable by the released cops traveling their path, are provided to withdraw the trips from tripping position.

7. The combination with a plurality of copwinders each having a hopper, a control shaft, a cop receiver and a winding station, of a conveyor disposed adjacent said cop-winders, a plurality of carriers for empty cops mounted on said conveyor, each of said carriers having a movable cover thereon, a power device to drive said conveyor substantially continuously to maintain a supply of empty cops passing each of said cop-winders, and a trip at each of said copwinders operable by the control shaft of its respectively adjacent cop-winder upon the completion of winding of a cop at the respective winding station to a tripping position to individually trip the cover of the next cop-filled passing carrier and to thereby release the empty cop therein-into its associated hopper for transfer therefrom into its related cop-receiver and conveyance by the latter to the respective winding station.

8. The subject matter of claim 7 characterized by the fact that a. trip withdrawer is provided in each hopper to be actuated by each cop as it travels in the hopper to withdraw its respective trip from releasing position.

WALTER SCHWEITER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 492,879 Stoner Mar. 7, 1893 1,227,754 Colman May 29, 1917 1,991,699 Reiners et a1 Feb. 19, 1935 2,040,023 Reiners et al May 5, 1936 2,234,355 Reiners et al. Mar. 11, 1941 2,236,300 Reiners et al. Mar. 25, 1941 2,273,588 Meister Feb. 17, 1942 2,306,871 Esser et a1 Dec. 29, 1942 2,451,975 Rayburn et al Oct. 19, 1948 OTHER REFERENCES Serial No. 381,944, Reiners et al. (A. P. (3.), published June 1, 1943.

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