US2381078A - Wrapping machine - Google Patents

Description

Aug. 7, 1945. J. 5. PECKER ET AL WRAPPING MACHINE Filed June 5, 1943 5 Sheets-Sheet 1 INVENTORS. J. s. PECKER.

H-A. s MPSON. A.S.'K\RSHNER ATTORNEYS.

Aug. 7, 1945.

J. s. PECKER ET AL 2,381,078

WRAPPING MACHINE 5 Sheets-Sheet 2 Filed June 3, 1 943 INVENTORS J.s. PEGKER'.

BY Asxmsuuen.

ATTORNEYS.

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Aug. 7, 1945. J: s. PECKER ET AL- WRAPPING MACHINE Filed June 3, 1943 5 Sheets-Sheet 3 ywanamw ATTORNEYS.

Aug- 7, 945- .1. s. PECKER ET AL WRAPPING. MACHINE Filed June 5,- 1945 5 Sheets-Sheet 4 INVENTORS- J-SPECKER.

wmsnw sow. BY A.S.K\RSHNER.

yw Ma 9M ATTORNEYS Aug. 7, 1945. J. s. EckER ETAL WRAPPING MACHINE Filed-June 5; 1943 5 Sheets-Sheet 5 INVENTORS J. S PECKER. H-A- SMPSQN. BY A-$.K\RSHNER.

A TTORNEYS.

' Patented Aug. 7,1945

WRAPPING M CHINE Joseph S. Pecker and Henry A. Simpson, ,Philadelphia, and Abraham S. Kirshner, Llanerch, Pa., assignors to Celanese ()orporation o! America, a corporation of Delaware Application June 3, 1943, Serial No. 489,436

8: Claims.

This invention relates to wrapping machines, and relates more particularly to a machine for applying an outside protective wrapper to yarn packages.

' In preparingyam packages, such as cones of yarn or the like, for storage or shipment, they are usually wrapped in a sheet of paper, treated or untreated, before being placed in suitable containers therefor. .Heretofore, the wrapping of the yarn packages was done by hand, a method which obviously was time-consuming and costly.

It is an important object of this'invention to provide a machine for automatically and expeditiously applying wrappers to yarn packages.

Another object of this invention is the provision of means for automatically removing the yarn packages from the conveyor after they are wrapped, and-for depositing the same in suitable containers. p A

Other objects of this invention, together with certain details of construction and combinations of parts, will appear from the following detailed description.

According to the present invention, an endless conveyor carries vertical spindles on which are adapted to be placed manually the cones or other yarn packages to be wrapped. The conveyor is driven intermittently and is so timed that the spindles-come to a stop directly under the center of a wrapping head where a paper wrapper is to be appliedto the yarn package. One or more wrapping heads may be provided, depending upon the desired capacity of the machine. When the conveyor is brought to a stop, with a spindle containing a. yarnpackage under a wrapping head, the spindle and package are caused to be raised by a suitable cam and lever arrange-. ment, whereby the yarn package is lifted into the wrapping head where a sheet of paper is wrapped around the yarn package and the ends of the wrapper are twisted together.

The wrapping head consists of a fixed circular base mounting a' series of rollers which are tapered when a cone of yarn isto'be'wrapped, the taper of therollers being the same as that of the cone. The rollers rotate continuously at a predetermined speed by means of gears, and the rollers are so mounted in suitable housings that their distance from the center of the wrapping head may be varied. As the y'arn package is lifted intothe wrapping head, the rollers-tare spread apart to permit the entry of the yarn package. As the yarn package is raised to a desired position within the wrapping head, the

' rollers are released so that spring means may .pull the rollers inwardly against the yarn package thereby rotating the same.

paper, out to size, is held in a suitable magazine from which it is delivered to the wrapping head through a gap in the circular base thereof at a tangent to the package being wound, the sheet being caught between the yarn package and the rollers as they revolve and is rolled or wrapped around the yarn package. As the wrapped package continues to rotate, twister fingers or plates positioned above and below the rotating package'are moved inwardly so that they engage and thereby twist" the ends of the paper wrapper. The twister fingers or plates are then removed and at the same time the rollers of the wrapping head swing out to permit the withdrawal from the wrapping head of the wrapped yarn package. The conveyor then moves forward a suitable distance to permit an unwrapped package, or more than one unwrapped package, where a plurality of wrapping heads are employed, to move to a position under the wrapping head or heads. At a predetermined point on the conveyor, suitable means are provided for transferring automatically the wrapped yarn packages from the conveyor to a suitable container.

In the drawings wherein one .emboidment of this invention is shown,

Figure l is a side elevational view of the yarn package wrapping machine of this invention,

Figure 2 is also a side elevational view of the wrapping machine, on a slightly enlarged scale mechanism, and

and partly in section,

Figure 3 is a top plan view of the wrapping head of said machine,

,Figure 4 is a vertical sectional view of the wrapping machine taken on line 44 in Figure 3,

Figure 5 is a top plan view of the transferring mechanism, partly broken away to show the operating gears,

Figure 6 is a ietail view, partly in section, of the package gripping means of the transfer Figure 'l is 'a detail view of the tripping mechanism for the package gripping means.

,,Like reference numerals indicate like parts throughout the several views of the drawings.

Referring now to the drawings for a detailed description of this invention, and specifically to Figures 1 and 2 the reference numeral ii indicates generally an endless conveyor comprising a plurality of carriages or trucks I2 having wheels or rollers I3 thereon adapted to ride on an endless track l4, Each of the carriages I2 is The wrapping provided with a relatively fixed cylindrical bearing i 5 in which is slidably carried a sleeve IS. The sleeve is mounted on a spindle I1, the upper end l8 of which is adapted to receive the yarn package I9 to be wrapped, the core of theyarn package sitting firmly on=the frusto-conical collar 20. The wrapping machine shown in the drawings is designed to wrap a. cone of yarn and this invention will be described in connection therewith. The sleeve I6 is provided with an integral collar2l carrying a set screw 22 for maintaining said sleeve l6 inposition on spindle l1. Each spindle is provided with an integral extension 23, the lower extremity of which has a bifurcation 24 in which a, roller 25 is journalled. The conveyor is adapted to be moved by an articulated chain 26 which is intermittently driven by a suitable drive means (not shown).

' A cam and lever arrangement generally indicated by reference numeral 21 is provided to lift predetermined spindles carrying yarn packages to be wrapped into wrapping heads, generally indicated by reference numeral 28, spaced above and at suitable intervals along the endless conveyor. In the drawings two such wrapping heads are shown. It will be understood, however, that any number may be positioned along the length of the conveyor, depending upon the desired capacity of the machine.

The conveyor movement is so timed that it is brought to a stop with the spindles directly under the center of the wrapping head. At this point spherical bearing surfaces 29 (carriedby each of the spindles) on the spindles directly under the wrapping heads enter between bearing surfaces 3! and 32 on lever 33', and roller 25 contacts bearing surfaces 34 on lever 95. Lever 38 is operatively connected to bell-crank lever- 36, to one end 31 of which is pivotally attached a lever 38 and on the other end 39 of which is carried a cam follower 4| cooperating with a cam 42' mounted on the same shaft, hereinafter referred to, as cam 42. A lever 43 is pivotally attached to lever 38 and a lever 44, which is similar to lever 33 and which is provided with bearing surfaces 45 and 46 similar in structure and function to bearing surfaces 3| and 82 on said lever 33, is pivotally attached to lever 43. The lever 35 is operatively connected to a bell-crank lever 41, one end 48 of which carries a cam follower 49 cooperating with the cam 42 andthe other end 5| of which is pivotally connected to a lever 52 on which ispivoted a lever 53 pivotally carrying a, lever 54 having a bearing surface 55 similar in structure and function to bearing surface 34.

Cams 42 and 42 are keyed to shaft 56 driven by any suitable means (not shown). As the shaft 56 and cams 42 and 42' rotate, the cam surfaces acts on rollers and 49 lifting the,predeter' lessconveyor forward a distance equal to two.

spaces to bring unwrapped yarn cones in position under the wrapping heads.

The wrapping heads 29 are carried by brackets 58' attached to portions 51 of the machine framework by means of bolts 58. The brackets 56 are provided at their free ends with bear- 4 ing members .59 ineach of which is journalled a fixed to tubular shafts l4 journalled on bearing points 15 in the extremities of a U-shaped holder 18. Shaft 14 carries thereon tapered rollers 11 and ,18. ,The rotation of gears 12 rotate the tapered rollers'continuously at a predetermined speed. Holders 16 together with. the tapered rollers carried thereby are mounted on brackets 19 for movement toward and away from the center of the wrapping head. 4 The movement of said tapered rollers is governed by the vertical movement of the spindle carrying the yarn package, the movements being so timed that the rollers are spread apart to allow clearance for the .cone coming into wrapping position. When the cone has reached a predetermined position in.

the wrapping head, the rollers are released, a spring 80 acting on arm 8| of bracket 19 pulling the rollers inwardly against the cone causing the rotation of the same.

The paper wrappers 82 are supplied from a magazine 83 by means of a reciprocating member 84, the paper wrapper being supplied at a tangent to the cone through a, gap in the circular base. The paper. wrapper is caught between the yarn package and the tapered rollers as they revolve and is rolled orwrapped about the cone. At a suitable times. pair. of twister fingers or plates 85 carried on arms 86 integral with collars 81 fixed to shaft 88 are swung in position above and below the wrapped cone engaging and twisting the ends of the wrapper. These twister fingers or plates remain in their inner or operative position only long enough to carry out their function and are immediately swung back Ito their outermost or inoperative position. At the same time the tapered rollers are swung outwardly to permit the withdrawal of the wrapped yam package on the spindles l1.

At a convenient point along the conveyor, there is positioned means, generally indicated by reference numeral 89, for transferring the wrapped yarn packages from the conveyor and for placing them into suitable containers 9| on another conveyor generally indicated by reference numeral 92. The transfer mechanism comprises a yok 93 mounted on a shaft 94 which is adapted to rotate in predetermined time relation with the conveyor, I I of the yarn wrapping machine. The yoke 93 is provided with two transfer heads-95 and 98. In operation, the shaft- 94'is elevated to a point where the fingers 91 of the transfer heads are clear of the top of the containers 9| and wrapped yarn package l9. -As shown in Figures 1 and 5, when one of the transfer heads is over the conveyor in position to remove therefrom two wrapped yam packages, it is parallel thereto and at right angles to the yoke 93, while the other transfer head is at 45 to the yoke. When the transfer mechanism is in position shown in Figure 1, the gripping fingers 91 in the transfer head over the conveyor H are in extended position,

while the gripping fingers on the other transfer head 96 are in contracted or gripping position. Means are provided for operating the gripping fingers in a predetermined manner. This means shaft 6| carrying sprocket wheels adapted to'f comprises a rocker arm 98 pivotally mounted in the yoke 93 and having two bifurcated ends in which are journalled the ends of levers 99. The levers 99 are pivoted at IN on upright brackets I02. The opposite ends of levers 99 are provided with ball bearing members I03 which are journalled in sockets I04 formed in yoke I05 connecting the two gripping members I06 and I01 of each transfer head.

As the yoke 93 is lowered to pick up the two yarn packages, the rocker arm is actuated by a snap action motivator, generally indicated by reference numeral I08, coming into contact with 'a vertically adjustable trip rod I09.

The tripping of the rocker arm causes thegrlppin fingers of one set of gripping members to move outwardly and the gripping fingers of the other set of gr pping members to move inwardly, the gripping fingers being moved through a rod I09 attached to yoke I05, which rod carries a bearing member indicated by reference numeral III formed by discs H2 and H3. The bearing member operates bell-crank brackets II4 to which the gripping fingers 91 are attached,

After the transferhead 95 has gripped the two yarn packages on conveyor II and transfer head 96 has released the two wrappedyarn packages in container 9|, the transfer heads are raised by shaft 94 and are rotated through an angle of 180 by means of a planetary gear system, gener- I ally indicated by reference numeral I I5, and connecting rod IIB carried in yoke 93. When the transfer head reaches the position over container 9|, it assumes a position which is at right angles to the position now shown in Figure 5 of transfer head 96 whereby the wrapped cones may be placed in unoccupied spaces in the container 9 I.

It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of my invention.

Having described our invention, what we desire to secure by Letters Patent is:

l. A device for applying wrappers to yarn packages, comprising a wrapping head including spaced rollers for applying the wrapper to the yarn packageand means for rotating said rollers at a constant speed, means for intermittently feeding said package to a position in vertical alignment with said wrapping head and means for effecting relative movement between said wrapping head and said package.

2. A device for applying wrappers to irustoconical yarn packages, comprising a wrapping head including spaced, tapered rollers for applying the wrapper to the yarn package and means for rotating said tapered rollers at a constant speed, means for intermittently feedin said package to a position in vertical alignment with said wrapping head and means for effecting relative movement between said wrapping head and said package.

3. A device for applying wrappers to yarn packages comprising a. wrapping head including spaced rollers for applying the wrapper to the yarn package and means for rotating said rollers at a constant speed, means for intermittently feeding said yarn package to a position directly below said wrapping head and means for lifting said package into said wrapping head for contact with said rollers.

4. A device for applyin wrappers to yarn packages comprising a wrapping head including spaced, radially movable rollers for applying the wrapper to the yarn package and means for rotating said rollers at a constant speed,'means for intermittently feeding said yarn packages to a position directly below said wrapping head and means for lifting said package into said wrapping head for contact with said rollers.

5-. A device for applying wrappers to yarn pa ckages comprising a wrapping head including spaced rollers for applying the Wrapper to the yarn package, means for rotatin said rollers at a 1 constant speed and means for moving said rollers in a radial direction, means for intermittently feeding said yarn package to a position directly below said Wrapping head and means for lifting said package into said wrapping head for contact with said rollers.

6. A device for applying wrappers to yarn packages comprising a wrapping head including spaced rollers for applying the wrapper to the yarn package, means for rotating said rollers at a constant speed and means for moving said rollers in a radial direction, means for intermittently feeding said yarn package to a position directly below said wrapping head and cam and lever means for lifting said package into said wrapping head for contact with said rollers.

'7. A device for applying wrappers to yarn packages comprising a Wrapping head including spaced rollers for applying the wrapper to the yarn package, means for rotating said rollers at a constant speed and means for moving said rollers in a radial direction, means for intermittently feeding a yarn package to a position directly below said wrapping head, cam and lever means for lifting said package into said wrapping head for contact with said rollers and means for feeding a wrapper to said rollers.

8. A device for applying wrappers to yarn packages comprising a wrapping head including spaced rollers for applying the wrapper to the yarn package, means for rotating said rollers at a constant speed and means for moving said rollers in a radial direction, means for intermittently feeding a yarn package to a position directly below said wrapping head, cam and lever means for lifting said package into said wrapping head for contact with said rollers and means for feeding a wrapper to said rollers at a tangent thereto at a point between said rollers.

JOSEPH S. PECKER. HENRY A. SIMPSON. ABRAHAM S. KIRSHNER;

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