US2259079A - Creel mechanism of warping frames - Google Patents

Description

Oct. 14, 1941. w. REINERS ETAL CREEL MCHANISM OF WARPING FRAMES 3 Sheets-.Sheet l.

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Oct. 14, 1941.'

t w. RElNl-:Rs ET'AL CREEL MEC'HANISM 0F WARPING FRAMES 3 Sheets-Sheet 5 Filed Nov. 26, 1958 E, E E l Patented et. 14, 1941 `STATES 'P FFICE Kahlisch, Gladbach-Rheydt, Germany,

assignors to W. Schlafhorst & Co., Gladbach-Rheydt, Germany, a corporation ofiGermany Application November 26, 1938, Serial No. 242,520 In Germany January 14,1938

' 1o Claims.

For speeding up the work of warping machines the usual expedients adopted are to increase the velocity of the yarn or thread as much as possi-- ble and to reduce the time required for removing empty tubes from the creel, and putting full tubes on the pegs, the creel being in some cases made portable for this purpose, so that it can be removed when empty, and replaced by a full one. Much time is, however, expended for severing the yarn between the tubes and the tensioners, each time the supply of yarn on the creel has become exhausted, and subsequently in tying the loose ends of the yarn when fresh yarn packages have 'become available. In some cases the time expended on making the change over may amount to a third of the working time. Our invention enables it to be reduced to a few minutes.

For this purpose we provide for automatic severance of the yarn extending from the creel to the tensioner of the warping machine, when thesupply of yarn is exhausted, and for automatic tying of the loose yarn ends, when the creel l has been re-lled or a fresh creel has been placed in position. Automatic severing and knotting is not broadly novel in connectionwith creeis, but the arrangements heretofore proposed have been confined to providing a' single cutter and a single knotter, moved from peg t peg. whereas we si- .m'ultaneously sever and simultaneously knot the yarn between a series or group of pegs and the ,tensioners facing the same.

We may mount the severing devices and knotters on a carriage or on separate carriages which travel lengthwise of the creel, or up and down it, and Where the creel is portable and electrically operated mechanism for removal thereof is provided we may arrange thatl the carriage automatically closes a circuit, for removal ofthe creel, when the yarn olf the last group of pegs has been cut. Similarly, the knotters may be automatically started by the arrival of a fresh creel.

The tubesv on which the yarn or thread is wound may with advantage have circumferential groovesnear one en d for engaging the ends of the filament and holding it in position for the knetter.

The invention is illustrated in the accompanying drawings, showing examples.

Fig. 1 is a vertical cross-section ofl the creel and the shearing mechanism, for an apparatus in which the knotters are on a separate carriage.

u ...,:gFig 2, a partial plan view.

Fig;.3 is a side'elevation thereofVand ef'. f-Figsfi, 5' and`6 are viewssimilar to Figs. 1, 2 55 land 3 but showing a knotter carriage in place of the shearing mechanism carriage.

Fig. 4a is an enlarged view' of a portion of the kknetter assembly shown in Fig. 4.

` Fig. 7 is a horizontal sectional view of the carriage, showing the motorl and driving gear.

Fig. 8 is a side elevation of a thread-severing mechanism of another form.

Figs. 9 and 10 are respectively front and side elevations of the lower part of creel panels with a conveyor for moving them.

Figs. 11 and 12 are respectively a vertical crossl sectlonand a plan view of another form of creel frame with revoluble panels. l

Figs. 1 to 7, a carriage I (Fig. 7) with wheels 23 and an electromotor 2 travels along the passages betweenthe double-sided creel frame 26 and the 4tensioner frames 50 facing the same on both sides. The creel frame 26 is in the form of a panel on which pegs 60, to hold supply packages of thread, are arranged butt to butt in horizontal tiers and vertical rows. On the tensioner frames tensioners 6I are similarly arranged, each opposite a peg. The motor 2 drives a worm 3, and

this drives two worm wheels 4, 5 engaged with' racks 6,'1; for moving the carriage in either direction. Upon the carriage there is a vertical support in the form of a tube 8 carrying a series of shears Il, I1 spaced according to the. spacing of the tiers of creelpegs, and in the tubes there is a vertically movable rod'IZ with tappets I3 projecting through slots. in the tube, so that by lifting' the rod the shear legs I'I are actuated for cutting the yarn or thread between the tensioners and the cheeses on the pegs. Therod is actuated for this purpose by deflecting surfaces, in this case elevations I6 on a cam rail 2|, on which a roller. i4 at the lower end of the,rod I2 runs. 40 The elevations I6 are spaced in accordance with the rspacing of the vertical rows of pegs. After the cutting the loose exhaust ends Fb of yarn hang down from -the tensioners, and theloose ends Fe are pulled oi the pegs, with the tubes H. The

- tubes have necks 3l for holding the leading ends of the yarn' wound thereon. At the ends of the passages curved rails 2Q connect the ends of the rails 2l, and a curved rack 25 connects the ends of the two racks 7, so that the carriage can travel from one passage to the other.

The creel frame has wheels 21, so that ,when the tubes H are empty it can easily be removed for .re-charging, a fresh frame with charged pegs being moved into its place, to save time.

When a creel with fresh cheeses S thereon has Referring rst to the construction shown in been moved into position for delivery of yarn, as shown in Figs. 4, and 6 the loose ends'Fa of the yarn hanging from the necks JI of the tubes are automatically tied with the exhaust ends Fb hanging from the tensioners. These gures show a second carriage of a construction similar to the one ilrst described, but with the shearing unit replaced by a knotter unit. The knotters 20 are mounted up'on arms 5I projecting from the vertical tube 8. This mechanism will notbe described in detail, since such devices are well known. Such mechanisms, for example, are disclosed in the United States patents to Abbott, Nos. 1,868,682, July 26, 1932,' and 1,965,023, July .3, 1934. The knotting bills shown in these patents resemble the knotting bills 52 disclosed herein which are controlled by triggers 53. While the knotting bills in Patent No. 1,868,682 are actuated by an operating lever I3 (page '1, line 84) and in Patent No. 1,965,023 by a conventional lever 28 (page 2, line 56), the triggers 53 in the present arrangement corresponding to these actuating levers are adapted to be actuated by the pins I3 on the' vertical shaft I2 operated by the cam rail I6, on which rides the roller Il, of the shaft I2. Cooperating with each knotter are two retrieving arms I9 and I8 fixed on vertical shafts 9 and I0, respectively, which project upward from, and are rotated by, the worm wheels l and 5. The retrieving arms are revolved in synchronism with the movement of the carriage along the 'passage and are adapted to grasp the hanging yarn ends Fa and Fb and draw them into the crossed position shown at the left side of Figs. 4 and 5, where nthey are engaged by the bills 52 of the knotters (Fig. 4a)l The elevations of the cam rail I6 are arranged to actuate the knotters shortly after the yarn ends of each veraeaaovo For automatically removing the creel, for refilling, we may provide an endless, mechanically driven belt or chain 22, as shown in Figs. '9 and 10, with lugs 29, the creel being provided with corresponding lugs 20, which can be moved into the path of the lugs 2l, either directly by hand the creel panels 42 are fixed to vertical shafts 4I tical rowhave been brought to the position shown at the left side of Figs. 4 and 5.

Instead of providing separate carriages for the shears and knotters, both devices may be mounted upon the tube 8 of a single carriage, arranged at an angle of 90 with respect to each other, so that either` set of `devices can be brought to operative position by swinging the tube through a corresponding arc. Alternatively, the shears and knotters may be mounted upon separate tubes or posts 8 of the same carriage. In the case of either of the two forms last described the general pro- 1 cedure would be to operate the shears'whlle the carriage travels in one direction and the knotters f while it travels back.

It will also be understood that the carriers of the shearing and knotting devices may move vertically from tier-to tier, instead of horizontally.

Instead of shears we may use any other suitable device for severing or breaking the yarn, e. g. electrically heated burners 3Ia (Fig. 8), towards which the yarn is guided by converging guide arms 32. For breaking the yarn, instead of cutthe loose ends of the yarn cannot readily bev picked up by the knotters or by rotating arms or the like co-operating therewith the knotters.

may have suction devices or the like for picking up the yarn. j

having thereon gear wheels 43 adapted to be engaged with arack 44 on the carriage I, so that the panels are rotated by passage of the carriage. The rotation of the shaft 4I is checked, when the rack has cleared the gear wheel, by a spring loaded catch 46, which engages a' notched disc on the shaft.

What we claim as our invention and desire to secure by Letters Patentof the United States is:

1. In a knotter for use with a creel having supply packages of thread arranged in a panel of tiers and rows, and tensioners to guide and tension the thread feeding from the lsupply packages and to hold the exhaust end of said thread, the tensioners being opposite the packages in vsimilar arrangement and spaced therefrom to form a passage;` a knotter unit comprising knotters mounted in a row in spaced relation on a lsupport, the number and spacing of the knotters corresponding to the number and spacing of the tiers of packages and tensioners; means mounting said knotter support to travel sideways through the passage across the rows 'of packages and tensionrs, in such position and direction vthat each knotter passes along a corresponding tier of the, packages and tensioners; means for bringing together at each knotter, as it reaches in its travel a new row of packages and' tensioners, the ends of the exhaust thread and supply thread of its'tier; and means'for actuating said knotters to tie saidlthread ends.

y2. In a device ofA the class described, a creel havingpegs to hold supply packages of'thread arranged in a panel of tiers and rows, and tensioners to guide and tension the thread feeding from`the supply packages and-to hold the exhaust end of the thread, the tensioners being ar ranged opposite the packages and spaced therefrom toform 'a passage; a carriage adapted` to travel Ithrough said passage;` a vertical support on said carriage; knotters mounted in a row on said support spaced according to the spacing of the tiers of packages; a cam rail extending along said passage having defiecting surfaces at intervalsV corresponding tothe spacing of the rows of packages; actuating means for said knotters including a cam follower riding said cam rail, and retrieving means for gathering the exhaust and supply thread ends to said knotter's.

3. A knotter as described in claim 1, wherein said means for bringing together the ends of the exhaust thread and thesupply thread comprises a pair off' retrievers, each having a set oi'grasping arms located, respectively, at the levels of the tiers of packages and tensioners; and means for operating said arms in synchronism with the travel of said carriage to cause them Vto engage the thread ends of each row and to move them to the respective knotters.v

4. Creel, apparatus comprising .a frame on which are mounted a pluralityof coplanar panels mounted to revolve on individual parallel axes 'lying in the plane of the panels,'each panel having ony` both faces pegs to hold packages of thread, thread tensioners mounted on saidframe on one side of said panel each located opposite a corresponding one of said pegs and all spaced from said panel to leave a passage between them,`

and afcarriage adapted to travel through the passage, said carriage and each panel having interengaging means whereby each panelis revolved 180 during the travel of the carriage through-y the passage. 1

5. Apparatus as described in claim 4,-wherein saidcarriage is provided with means to sever threads extending from said tensioners to the packages facing them.

`6.` Apparatus as described in claim 4Wherein said carriage is provided with means operated synchronously with the travel of the carriage t@ sever threads extending from said tensioners `to the packages faeingthem.

7. Creel apparatuscomprising panels o f pegs to hold packages otfsupply thread, the pegs be ing arranged in rows and vtiers and placed butt to butt so as to extend outward in opposite directions; panels of tensioners similarlylarranged in rows and tiers opposite said pegs/and spaced therefrom to provide two passages; avcarriage adapted to travel through said passages; tracks for said carriage extending through said passages and in a semielrcle Joining the tracks of each passage at the end; and a knotter unit mounted on said carriage having knottersl arranged in a vertical row at a spacing correspondingto that of the tiers of packages and tensioners; means for b ing thread ends from the supply pack-l thread ends so brought to them.

' 8. In a shearing device for use with a creel having supply .packages of thread arranged' in a o panel of tiers and rows and tensioners to guide and tension the thread feeding from the supply packages and to hold the exhaust end of the thread, the tensioners being opposite the packages in similar arrangement and spaced there'- l from to form a passage; a shearing unit comprising shears mounted ina row in spacedfrelation on a support, the number and spacing of the shears corresponding to the number and spacing of the tiers of packages and tensionersfjmeans mounting said shear support to travel sideways through the' passage across the rows of packages and tensioners, in such position and directionthat/each pair of shears passes along a cor-v s responding tier of packages and tensioners; and means lfor actuating said `shears to sever the prises a cam rail extending along the path of said carriage and shear-actuating means on said carrlage having a follower to engage'said caml rail.

' 10. In a shearing device for use `with ancreel having supplypackages of thread ,arranged in a panel of tiers and rows and'tensionersto'guide and tension the thread feeding from.l thelsupply packages and to hold the exhaust end of the thread, the tensioners being opposite the packages in similar arrangement and spaced therefrom to form va passage; a thread-severing lunit comprising severing means on a support mounted to travel through the passage, parallel to the tiers of packages and tensioners, said severing meansbeing adapted to sever all the threads from a row of supply packages as saidsupport travels once through the passage. v

' WALTER. REINERS,y pvsrav Ksmsca-

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