US1633595A - Device for making rolls of paper - Google Patents

Description

.Y 1,633,595 -Jlm 28 1927- H. LIEBECK l DEVICE FORV MAKING ROLLS OF PAPER Filed Ausl. l5. 1'923 FIG? Patented June 28, 1927.

UNITED s'rafnazs`v PATENT OFFICE.

HARRY LIEBEC, OF SWARTHMORE, PENNSYLVANIA, ASSIGNOR T0 SCOTT PAPER COMPANY, A CORPORATION OF PENNSYLVANIA.

DEVICE FOR MAKING ROLLS 0F PAPER.

Application filed: August 15, 1923. Serial No. 657,535.

The object of my invention is to provide a winding device for winding a web of paper into roll formand especially adapted to the delivery end of paper making machines, and particularly that class of .machines where the web is formed into rolls immediately j after leaving the dryers.

My object is also to so construct the winding apparatus that it will automatically receive a mandrel while the paper web is being wound upon a second mandrel which automatically discharges itself when fully wound, whereby it isv removed from vthe winding devices to a support to provide space to permit positioning the additional mandrel to which the paper web from the paper making machine is attached for windmg a new roll of paper so that the several rolls of paper may be formed in succes-` sion without any interference with the running of the aper making machine. More speciiically considered, my invention consists of a rotating drum or cylinder combined with mandrel carrying means adjacent to its ends and circumferentially adjustable about the axis of the cylinder, said means adapted' to receive a mandrel when .in one position and to be readily guided thereon when adjusted to the winding position, the roll of paper upon the mandrel resting directl upon the surface of the revolving cylin er with a frictional contact and to insure a constant surface speed equivalent to that of the cylinder without positive gearing between the mandrel and cylinder, and guiding means for the mandrel as it becomes loaded with paper and whereby the increasing diameter of the paper roll pushes the mandrel out of the mandrel carrying means and delivers it to-stationary supports, so that the mandrel carrying means may be further adjusted circumfer- 'entially to bring the new mandrel' into the position formerly occupied by the mandrel` which hasbeen automatically removed withV 3 is journaled, said bearings acting as a bearing for a revolving cylinder or drum 4 which is loosely journaled thereon and provided with a belt wheel 5 which may be driven by a belt 6, so that it is constantly rotating preferably at a surface speed equal to the surface speed of the web of paper 7 which leaves the dryer end 8 of a paper making machine or other source of paper web. Any other means for rotating the cylinder 4 .may be employed in lieu of the belt 6 and belt wheel 5, if so desired.

Secured to the shaft 3 at the opposlte ends of the cylinder or drum 4 are arranged mandrel carrying frames 9 which are rovided with` radial guide slots 10, preferably four in number, arranged e uidistant about the axis of the shaft. As s own, it is desirable that thevguide surface 11 on one side of the slot shall be prolonged beyond the end of the guide surface on the other side of the slot in each instance, the purpose for which will presently appear. The depth of the to Fig. 1. The shaft 3 is provided at one end with a worm wheel 14, the latter meshing with a worm 15 'ournaled in stationary bearings 16 and provlded with a hand wheel 17, by which it may be rotated. Ittwill now be understood that by adjusting the worm wheel 14,. the shaft 3, together' with its mandrel su porting frames 9, will be adjusted about t e .axis of the drum 4, so that a mandrel received in one of the radial slots, as indicated in Fig. 1, may be transferred through an arc of 9()o to a position adjacent to the stationary guides 18 in connection with the supports 19 for the mandrel when carrying a roll -of paper. By employing a worm and worm wheel as a means for adjusting the mandrel carrying frame 9, it is manifest that the said frame will be held in any position of adjustment which it may as- Yslots 10 should be suiicient to receive the apparatus, the guiding rails of said frames being preferably inclined slightly in a downward direction toward the Winding frames,

so that a mandrel will automatically roll toward the slotted portions of the frames 9 as said frames areadjusted. The end of the frames 20 adjacent to the cylinder are extended upwardly to form notches to receive the journals 12 of the mandrel and support the mandrel in such position that, as the frame 9 is adjusted in the direction of the arrow' (Fig. 4), the journals of the mandrels will pass over the short guide of the slot V10 and-be received upon the extended guide 11 thereof, and thus he lifted and fed into the slot in an automatic manner as the frames are adjusted to the position definitely shown in Fig. 1. The mandrel thus support.-

. ed will not'be rotating in contact with the surface of the drum, but is supported by the guide 20 (Fig. 4), and as it is in contact with the aper web, it will be performing a guiding un-ction. Later it will act to operate immediatel upon the paper web to wind it into roll orm. When the completed rollis removed to the supports 19 and the frames 9 are further adjusted, the next mandrel is received from the guide frames 20 and carried over to the position occupied by the former mandrel. The mandrel is then rotated continually, first by direct Contact with the cylinder, and secondly, by contact of the roll of paper which is being formed about it. It is manifest, that the speed of rotation of the mandrel gradually lessens as the paper roll increases in diameter, this lessening of speed being desirable when the mandrel is being automatically lifted and guidedl up the inclined guides 18 of the stationary supports.

In positioningY the roll winding means in relation to the paper making machine, it will be observed that the paper is guided under a roller 22 at such an elevation, that as the paper web passes from the said roller to the Winding cylinder or drum 4 (Where the mandrel is located 4upon which the paper is being Wound), said web is guided against the under surface of the other mandrel which is held in the mandrel supports 20 preliminary to being-brought intobposition for making the paper roll, it being thus guided to the surface of the cylinder or drum 4 preceding the formation of the roll 13 of paper.

It will also be understood that while the winding devices are shown in connection with the dry end of a paper making machine, the said devices 'may receive paper from any other source, such as when a large roll of paper is to be divided into secondary of paper is slitted into narrower .webs and the narrower webs are wound as individual rolls, although they might be wound on the same mandrel or upon cores on the. same mandrel shaft, as will be readily understood by those familiar' with paper manufacture.

In the construction shown in Fig. 1, it will be lnoted that. the mandrels are fed down an incline into the slot ol the mandrel support-ing means, and on the other hand, the mandrel having the paper roll thereon is delivered upward over an inclined guiding support, and while this is desirable, it is not essential to the spirit of my invention, as will be understood by reference to the 'modified construction shown in Fig. 3.

Fig. 3 shows the general construction of the apparatus to be the same as in Fig. 1, but the radial slots for receivingtheljournals of the mandi-els are somewhat diii'erent in specific construction and similarly, the supports for the mandrel by which they are delivered to the mandrel carrying frame and the manner in which they are discharged from the frame when the paper is wound upon them is also somewhat different. In this case, the radial slots are curved, as at 10, and while one-of the guiding edges of the slot is extended beyond the other, as at 11. (corresponding to Fig. 1), the other guiding edge l()b of the slot has near its end a notch 10c. The supports 20 for the mandrels which are to be delivered to the adjustable mandrel supporting frame 9, instead of forming a straight incline downward toward the cylinder 4, are arranged on an incline upwardly, as at 20, and these guides near their outer ends are yprovided with depressed portions 20h forming sockets in which the journals et' the mandrel are received and whereby the 'mandrel is positioned at a distance from the cylinder, as'will be clearly understood by reference t0 Fig. 3. It will now be understood that as the frame 9 is adjusted in the direction of the arrow, the long arm 11 will pass under the journal of the mandrel and Will cause itto roll inward toward the cylinder at the same time having its weight largely supported upon the upwardly curved guides 20EL until it occupies the position indicated. It will also be understood that the other uppermost guide slot 10 to the right of the axis of the cylinder', will be similarly provided with a mandrel which, during the course of the operation, will be largely wrapped with the paper roll, as shown, and during the Wrapping operation, the mandrel will be pushed outward gradually in the slot and the journals thereof will ultimatelyfall into the recessed portion 10", and the inen y All

cline of said portions will move the mandrel quickly just far enough to remove the pressure of the paper on the cylinder 4, which will arrest the further winding. The .frames 9 and their shaft 3 may then be adjusted in the direction of the arrow to lower the mandrel with the paper roll formed thereon until it will roll out of the recesses 1()e and be received upon the guides 19a which, being inclined, will cause the paper roll to roll away from the winding devices. At the same time, the new mandrel 13 will be brought tothe new position by the adjustment ot the worm and worm wheel and the paper web Would be severed and attached to yhe new mandrel, preliminary to a new roll of paper being wound thereon. In this case, gravity insures the discharge of the paper roll, whereas in Fig. 1, the increasing diameter of the paper itself was employed to cause the mandrel to ride up on the guides when removing the paper roll automatically from, the support. ln respect to the other guide 20a, the mandrel is moved along the same before being in the full custody of the mandrel supporting frames 9, but in this case, the mandrel is pushed along'the guides i203 by the arms of the mandrel supporting trame 9 instead ot rollingtoward the cylinder by gravity. lt is manifest, however, that a guide, such as 20 of Fig. 1, may be used with this modified form of apparatus if so desired.

ln the general construction and operation,

*` 'the devices of Figs. 1 and 3 are similar in 1he main,

The special function of the curvature of he edge 1Gb of the slot 10a is to gradually decrease the angle or" the slot to a horizontal as the roll increases, with the result that the weight of the roll and `.mandrel upon the surface of the drum l gradually decreases the weight of the roll increasesso that g .the friction and pressure upon the cylinder '-i remains substantially constant for all wound roll diameters. By reason of this, the crushing strain upon the paper roll is maintained at a minimum and hence no' damage is done to the paper by the increasing weight of the roll itself.

llt will now be apparent that I have devised a novel and useful construction which embodies the features of advantage enu-l merated as desirable, and while I have in the present instance shown anddescribed the preierred embodimentv thereof which has found in practice to give satisfactory and reliable results, it is to be understood that l do not restrict myselt' to the details,

' :ve the are susceptible of modication ya i-i 1. In a machine of the character stated, the combination of a revolving cylinder, an adjustable frame providing guides at each end of the cylinder for supporting mandrels upon `which paper webs are to be wound and adjustable about a horizontal axis, said guides having radial guide surfaces whereby the mandrel may move outwardly in said guides as the-paper roll increases in diameter by its action in pressing upon the revolving cylinder, detachable mandrels having journaled ends engaging the guides, means for adjusting the mandrel supporting frame about its axis and holding it in positions ot adjustment whereby the mandrels may be supported at a higher elevation than the axis of the cylinder and press toward the surface of the rcylinder by gravity, and lneans at the discharge side of the cylinder and independent of the adjustable mandrel supporting frame having inclined guides in alinement with the mandrel guides on the adjustable frame for automatically receiving and supporting the mandrel with the paper roll thereon after it leaves the Vadjustable supporting frame.

2. The invention according to claim 1, wherein further, an inclined supporting frame is arranged at the front or receiving part of the machine for automatically guiding and supporting a mandrel in position to be automatically received in contact with the cylinder and with its ends in the guides ot the adjustable frame preliminary to its being. raised and adjusted to position for receiving the web of paper while being wound into the finished roll.

3. The invention according to claim 1, wherein the adjustable frame is capable of complete revolution and isprovided with a plurality of guides for the mandrels arranged in spaced relation about the axis of the adjustable frame whereby a plurality of mandrels may be supported thereby at one time.

4. The invention according to claim 1, wherein the guides on the mandrel suporting frame are formed 1n which one guiding edgle of each'of the slots is extended beyond t e other, whereby said extended guiding edges ass' under the' journals of the' mandrel for li ting 'and guiding them into the slots as-the mandrel supporting frame is adjusted about its axis.

5. ,The invention according to claim 1, wherein further, the receiving and su porting means for receiving the mandre with the roll of paper thereon are stationary and provided with upwardly inclined guiding edges in alinement with the radial guides` of the adjustable mandrel su porting frames whereby the mandrels may be automatically' passed from the custody of the radial guides and the frame in which they are formed to and upon the stationary receiving and supllO as radial slots and y able roll to a position clear of the adjustable frame and cylinder.

6. The invention according to claim 1, wherein the adjustable mandrel carrying frame and 'revolving cylinder having a common axis and the former is provided with a Worm wheel by which it may be rotated about the axis of the cylinder, combined with a worin by which the worm wheel and the frame may be adjusted and held in adjusted position during the Winding o erations by the revolving cylinder.

7. Winding machine for winding webs of paper in roll 4form which consists of a rotating cylinder, combined with an adjustframe circumferentially adjustable about the axis of the cylinder and having a plurality of guiding means thereon spaced about its axis and extending beyond the perimeter of the cylinder, means for adjusting the frame with a step by step motion and holding it fixedly in its adjusted positions,- and a plurality of mandrels upon which the paper is to be wound each detach-l ably supported at the Sametime in respective portions of the plurality of guiding means which are above the axis of the adjustable frame whereby they have capacity for rotating in contact with the revolving cylinder and free to move radially relatively'thereto during the respective and successive winding of the paper web upon them.-

8. The invention according to claim 47, wherein further, means are provided for automatically vdelivering a mandrel to the adjustable frame at one side of the axis of the cylinder and for receiving the mandrel with the paper roll upon it from the other ,side of the axis of the cylinder.

9. The invention according to claim 7, wherein' further, the guidingv means on the adjustable frame consists of curved slots projecting. in a radial direction from the frame.

10. In a mechanism of the class described, in combination with a contact drum* for propelling web material, a rotatable member for supporting a plurality of reels for simultaneous co-action with said drum', and means on said rotatable member for permitting movement of said reels away from said drum as the web material is Wound on said reels. l

11. In a mechanism of the class described, a contact drum, a reel adapted to be rotated and partially supported by co-action with said drum for winding web material thereon, and a rotatable 'member having a plurality of means thereon for guiding and supporting a plurality of reels `for simultaneous co-action with said drum.y j

l2. In a mechanism of the class described, a contact drum, a reel adapted .to be rotated and partially supported by co-action with said drum for winding web material thereon, a rotatable memberhavi'ng a plurality of means thereon for guiding and supporting a plurality of reels for simultaneous coaction with said drum, and means for rotating said member continuously in one direction to bring successive reels into co-action with said drum..

- 13. In a mechanism of the class described,

unto set my hand.

HARRY LIEBECK.

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