US2089635A - Web splicing device - Google Patents

Description

Aug. 10, 1937. H. A. w. WOOD WEB SPLIC'ING DEVICE 4 Sheets-Sheet 1 Original Filed Oct. 27, 1933 Aug. 10, 1937. H. A. w. WOOD WEB SPLICING DEVICE Original Filed Oct. 27, 19:53 4 Sheets-Sheet 2 Aug. 10, 1937.

A. w. WOOD WEB SPLICING DEVICE Original Filed Oct. 27, 1953 4 Sheets-Sheet 3 QQ 5 .Am m

N Mws Q 1937- a. A. w. WOOD 7 2,089,635

WEB SPLICING DEVICE Original Filed Oct. 27, 1933 4 Sheets-Sheet 4 IMM Patented Aug. 10, 1937 ra'r ri WEB SPLICING DEVICE Application October 27, 1933, Serial No. 695,427 Renewed January 13, 1937 18 Claims.

This invention relates to a device for splicing a fresh web roll to the web running from a virtually exhausted roll and is particularly useful with a web printing press. 5 The principal objects of the invention are to provide a simple device for speeding up a fresh web roll by using the web itself so as to avoid the mechanism which heretofore has been necessary for speeding up the roll; to apply a web pressing member for causing the web to bear against the fresh web roll to speed it up with means for withdrawing the web pressing memher, once during each revolution of the fresh roll, to avoid any contact of the pasted part of the roll with the running web; to provide for speeding up the fresh web roll from a stationary condition to web speed by the use of the web alone without danger of breaking the web on account of applying it at full speed to a large heavy web roll when it is attempted to rotate it in that way in a single revolution, this invention providing for speeding it up in a plurality of revolutions; to provide for keeping the web pressed against the new roll just so long as the prepasted points are not in registration with the web pressing means and for withdrawing it to allow the web to move out of contact with the roll while the prepasted points pass by; to provide an oscillating motion for actuating the web 30 pressing means; to provide a controlling device actuated by the rotation of the web roll itself for actuating the web pressing means for the above described purpose; to provide means whereby the pressing of a button in an electric 35 circuit will initiate the action of the mechanism for accomplishing the splice; to provide a detachable plug to the particular spindle on the reel which carries the fresh roll that is about to be spliced to the web, which plug can be attached and will, in a simple manner, control the timing of the contact for properly making the splice; to provide means whereby if the operator does not place the plug on the spindle of the fresh roll there will be no oscillation of the web pressing member to start the roll until such time the proper connections are made.

Other objects and advantages of the invention wili appear hereinafter.

Reference is to be had to the accompanying O drawings, in which Fig. 1 is an end view of a web splicing device illustrating a preferred embodiment of this invention applied to a rotatable magazine reel;

Fig. 2 is a side elevation showing mainly the web pressing means;

Fig. 3 is an enlarged interior view in central section of the detachable plug placed on the contacts of the particular spider arm carrying the fresh web roll to be spliced;

Fig. 4 is a similar view of this plug showing the change in position when it is withdrawn;

Fig. 5 is a wiring diagram;

Fig. 6 is a diagrammatic end view showing the web being pressed against the fresh roll to start to impart rotation to it through the web;

Fig. '7 is a similar View showing the web pressing member rocked about an axis to allow the prepasted points on the web roll to pass without fouling the web;

Fig. 8 is a similar view showing the splice in the process of being made;

Fig. 9 is a similar view showing the splice completed and the web severed;

Fig. 10 is a similar view showing the position of the parts when the support for the web pasting member is drawn back to inoperative position;

Fig. 11 is a view similar to Fig. '7 showing a modified construction;

Fig. 12 is a view with the parts in the same position as in Figs. '7 and 11, showing another modification, and

Fig. 13 is a side elevation of a part of the latter.

As stated, this invention relates to the speeding up of a fresh web roll from stationary position to web speed in order to get it ready for the splicing operation. Several devices have been provided for accomplishing this object by action on the surface of the new roll or through its axis and they all added a good deal of machinery to the splicing mechanism and therefore were expensive. This was particularly so because they have to have some means for varying the speed in accordance with the diameter of the new roll to get it up to a surface speed exactly equal to the speed of the web. Obviously, the ideal way of accomplishing this result would be to speed up the roll by contact with the running web so as to reduce the amount of mechanism employed but it is a difficult thing to do. The fresh web roll is provided with a pasted area extending substantially from one end to the other and if this pasted area touches the web before the surface speed of the roll is equal to that of the web it is sure to apply paste to the new web and displace the leading edge of the fresh web roll. Furthermore, a single rotation of the web roll is too short a time to speed it up to web speed. Means has been shown in my Patent No. 1,843,436 and also the patent to Strand No. 1,895,425 to shield the pasted surface when it comes into registration with the web but this means also involves extra mechanism and the Strand means is especially complicated and demands very careful procedure or it fails to work at the right time.

By the present invention the web is used for speeding up the fresh roll but is not limited to perform that function in less than one revolution as means is provided for pressing the web against the roll only so long as the prepasted points on the roll are not in'registration with the web pressing means. In other words, provision is made for lifting or withdrawing the web pressing means whenever the pasted points come in registration with it so that the prepasted points can pass by without contact with the web and more than one rotation of the roll can be utilized for speeding it up to web speed. When the time comes for making the splice this web pressing means is permitted to force the web against the prepasted points to make the splice. Means is provided whereby the splice operating means can act only when the roll is rotated to proper position.

Referring to the drawings, particularly Figs. 1 and 2, it will be observed that the customary pedestals 2 provide a rotatable mounting for shaft 3 on which are carried spiders Means are shown for rotating shaft 3 by gear wheel t attached thereto, meshing with a pinion l attached to shaft of a motor (not shown) which is mounted on pedestal 2. It will be understood that the necessary means may be provided for shifting the reel laterally to obtain side register and that the spiders are splined to the shaft 3 to permit longitudinal adjustment. The arms of the spiders are also provided with means for retracting one of the spindles 9 or l to permit mounting of the web roll therebetween. In this particular case it is preferable to retract the spindle is since it is desirable to keep the spindle 9 in its position relative to its spider.

Fig. 1 shows a web W being used from running roll R which is about to expire. This web may be fed to a printing press (not shown). On another pair of spindles S and l E! is mounted a fresh roll S whose leading end has been prepared with past-e l l and lightly attached to the surface of roll S as is customary at present. The spindle 9 is keyed to the web roll spindle shaft so that it turns in unison with the roll. The shaft of spindle 9 extends through spider 4 and carries on its end electrical rings l2 and i3 insulated from each other and from the shaft of the spindle 9. Ring is is continuous around its periphery while a segment Hi is inserted in ring l2 and insulated therefrom, this segment l4 being electrically connected to ring l3. Thus both the parts id and I2 are segments.

Brushes l 5 and i6 bear against segment M and ring is respectively and thereby establish electrical connections to prongs I7 and IS. The prongs l l and 88 are adapted to contact with connectors l9 and 29 respectively which are pivotally carried in a detachable insulating plug 2! and forced towards each other by springs 22. It will be observed in Fig. 4 that when the plug 2! is withdrawn from the prongs El and E8, the connectors l9 and 25, being forced together by spring 22, contact each other by means of projections 23 and 24. This means that as soon as the plug is removed from the above mentioned prongs the connectors carried therein are shorted. The opposite ends of the connectors l9 and 281 carry wires 25 and 26 respectively whose function will be described later.

The brushes l5 and iii are mounted in an insulated holder 21 which is secured to spider 4. It is understood that one each of these holders 21, carrying prongs I7 and i8, is provided for each spindle and when each spindle is provided with a fresh roll, plug 2| is connected therewith.

Means are shown, in the form of straps 28 which bear against the running roll, for providing tension of web W. The lower ends of the straps 28 are shown attached to hooks 29 which partially encircle a shaft 35 mounted in brackets 3E secured to the foundation. The other ends of the straps 28 are attached to one end of each of levers 32 which are pivotally mounted by brackets 33 carried on the frame Work of the machine. The other end of levers 32 carry weight rods as which mount removable weights 35 to adjust the tension of web W as is Well known.

A web pressing arm 36 is secured to a shaft 37 which is pivotally mounted in brackets 38 secured to the press frame work and is movable from operative position, shown in full lines in Fig. 1, to inoperative position, shown in dotted lines in the same figure. This is done by a handle 39 secured to shaft 3! and equipped with a retractable pin 49 for cooperation with slots in bracket 38. Shaft M is pivotally mounted in the arm 38 and carries secured thereto a series of brackets 42 which serve to mount web pressing means, as brushes ihwhich operate between and around tension members 28. At the outer end of shaft ll, arm 54, is secured and 'has a spring as attached to its outer end. The other end of the spring i5 is secured by pin it to brush arm 36. This tension spring 45 tends to rotate the brackets %2 in a clockwise direction, as viewed in Fig. 1, thereby to press the web W against a fresh roll S. Also secured to shaft 4! is an arm 41 to whose free end are pivotally connected links 58, the other ends of which are loosely attached to the plunger of a solenoid 39. Solenoid 39 is mounted on the arm 36 and when energized rotates shaft ii and the parts attached thereto in a counterclockwise direction. a

It will be noted that a switch 59 is mounted on brush arm 3% and carries a roller for contacting with a toe 5! secured to shaft ii so that, when solenoid '59 is energized to rotate shaft 4| in a counterclockwise direction, the contacts in switch 51 are closed and when solenoid 49 is deenergized the contacts in switch 58 are opened. The switch 52 is mounted on bracket 33 in such a manner that when the arm 35 is in the lowered position contacts are established in switch 52 and are broken when the arm 35 is in the inoperative or dotted line position shown in Fig. 1. A shaft 53 is rotatably mounted on the arm 35, by brackets 5'? and carries arms 55 for the mounting of knives 55. The shaft 53 is urged in a clockwise direction by springs 58, one end of each of which is held by bearing brackets 5 and the other end of each is secured to a collar 58, several of which are attached to the shaft 53. A cam 59 attached to shaft 53 carries a notch for cooperating with a rod 69, which is spring-pressed downwardly by a spring iii. The rod 55 is lifted by-a solenoid 52 which is carried on the arm 36 to permit knives 55 to rotate in a clockwise direction and thereby sever the web W. A handle 63 is secured to shaft 53 to reset knives 55 for th next operation.

Fig. 11' shows a modified construction where, instead of using brushes 43 to press the web against fresh roll S, a roller 12 is freely mounted in arms ?3 secured to shaft 4| and operates in very much the same manner as brushes 33.

A similar arrangement is shown in Fig. 12 where roller 72 carries a sprocket 'l l attached thereto. This sprocket is driven by a chain '35 and cooperating with a sprocket it, the latter being secured to a sprocket ll alongside, which in turn is driven by a chain 13 from some convenient part of the press.

By referring to the wiring diagram shown in ig. 5 and the schematic diagrams of Figs, 6 to 10, the method of operation is readily apparent. When the running roll R is virtually exhausted, the reel is rotated, by starting the motor, to approximately the position shown in Figs. 6 to 9 and the arm 36 is in the full line position of Fig. 1. As soon as the arm is lowered, however, the establishment of contacts 8t and es in arm switch 5?. creates a circuit from one side of the power through arm switch 2 to brush solenoid 49. The other side, wire 65, goes through contacts and of a contactor $8 and from there through a speed-up push button 68 to 26 which connects the other side of the power. Thus it is apparent that brush solenoid G9 is energized and holds brush 43 in the position shown in Fig. 7.

The operator places plug 2i on prongs if and E8 to thereby insure the proper timing from a fresh roll S. When it becomes apparent that a splice will soon be needed the operator presses the speed-up button 59 which breaks contacts 25 and 25 therein. As shown in th--v wiring diagram, this also breaks the complete circuit to brush solenoid d9, permitting spring to rotate the bracket 32 in a clockwise direction, pressing the web W against the fresh roll S, as shown in Fig. 6. This starts the rotation of the fresh roll S. It is apparent that should paste ll be in the position shown in l at the beginning of the operation, the operator may give the fresh roll S a slight rotation by hand before starting the operation.

As the fresh roll S begins to spin in a counterclockwise direction, paste i comes around to the position shown in Fig. 7. Just prior to its passing underneath the web pressing member, contacts ii and iii are connected together by ring l3 and segmerit i 'i and thereby close a circuit through the wires iii and such that the brush solenoid id is energized. This rotates the bracket in counterclockwise direction to the position shown in Fig. 7. As soon as contacts ii and 53 are broken by the rotation of fresh roll S such that segment is passes out of contact with brush iii, the solenoid 59 again becomes deenergized and permits the web again to be forced against fresh roll S by the brushes to increase its rotation. This action is repetitive until such time as the fresh roll is up to web speed and the operator desires to make a splice, at which time the paste button it is pressed which connects contact fit with contact 'l 5.

By tracing contact 3 5 it will be seen to go through switch 52 toone side of the power. Contact 'i goes to one side of a contactor the other side of which is connected to the line wire This contactor is thereby energized, which opens contacts and th It will be observed that if the solenoid is deenergized at this par ticular time it will stay tic-energized but if it is energized a contact is established through switch 58, by lines 25 and Eli, so that the solenoid 59 will not be decnergized until the circuit is broken by contacts h and I8. Thereafter, however, brush solenoid &9 will remain deenergized so long as paste button it is held down. The purpose of this is readily seen since should brushes 13 be permitted to drop when the roll is in the position shown in Fig. '7 the paste would be fouled and the splice not properly made. Insurance is provided that brushes 53 press the web W against the fresh roll S in the proper manner so that the leading tip of the prepasted points touch the web This is illustrated in Fig. 8 where it will first. be seen that the leading edge has attached itself to web W.

In Fig. 9 the splice has been completed and knives 55 have operated to sever the web. The severing of the web is accomplished by the pressing of knife pushbutton l9 which connects line 25, which is one side of the power, to line 83 which runs to knife solenoid 62. The other side of knife solenoid is connected to line (it which runs through arm switch 52 to line which is the other side of the power. The consequent energizing of knife solenoid B2 lifts rod til and permits knives 55 to sever the web as described above. When the brush arm 36 is moved to its inoperative position as shown in Fig. 10, the electric mechanism carried thereon is deenergized with the opening of arm switch 52.

It will be seen that this invention furnishes a simple and inexpensive constiuction by which. the speeding up of the fresh web roll is provided for by the action of th web itself with the web pressing member pressed against the web.

It will be seen also that the device is not limited to the speeding up of the new roll to web speed in a single rotation of the roll. Means is provided by which the roll may rotate one or more times and the pasted part of the roll will be prevented from coming into contact with the running web until th roll is up to web speed.

Although I have illustrated and described only one form of the invention, I am aware of the fact that modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited in this respect, otherwise than as set forth in the claims, but what I claim is:

1.111 a fresh roll rotating device for a web splicing mechanism, the combination with means for pressing a running web against the surface of the fresh roll to rotate the roll after it is pasted and ready for splicing, of means for periodically withdrawing the first-named means to inactive position whenever the pasted portion of the surface of the roll passes the web pressing means.

2. In a fresh roll rotating device for a web splicing mechanism, the combination with means for pressing a running web against the surface of the fresh roll to rotate the roll, of means for withdrawing the first-named means to allow the web to pass the roll without touching it, and means controlled by the rotation of said roll for controlling said withdrawing means so that it will act at t -e time when a pasted area on the roll passes the pressing means.

3, In a fresh roll rotating device for a web splicing mechanism, the combination with means for pressing r inning web against the surface of the fresh roll to rotate the roll, of means for withdrawing the first-named means periodically to prevent contact of a pasted area on the roll with the web, whereby the rotation of the roll up to web speed will be accomplished in a plurality of revolutions.

4. In a fresh roll rotating device for a web splicing mechanism, the combination with means for pressing a running web against the surface of the fresh roll to rotate the roll, of means for withdrawing the first-named means periodically to prevent contact of a pasted area on the roll with the web, whereby the rotation of the roll up to web speed will be accomplished in a plurality of revolutions, and means for releasing the withdrawing means when a paster is to be made.

5. In a fresh roll rotating device for a web splicing mechanism, the combination with means for rotatably supporting a fresh roll, of means for pressing a running web with an oscillating motion against the surface of the fresh roll to rotate the roll, for the purpose described.

6. In a fresh roll rotating device for a web splicing mechanism, the combination with means for pressing a running web with an oscillating motion against the surface of the fresh roll to rotate the roll, for the purpose described, and means for timing the oscillating motion to press the web against the roll at points where it is not prepasted and to release the web so as to run out of contact with the roll at the prepasted point.

'7. In a fresh web roll speeding up device for the purpose described, the combination with a fresh roll, a running roll and a web running from the running roll normally out of contact with the fresh roll but adjacent thereto, of oscillatory means for pressing the web against the fresh roll with an oscillating motion, for the purpose described, so that the fresh roll can be given a plurality of rotations to bring it up to web speed.

8. In a fresh web roll speeding up device for the purpose described, the combination with a fresh roll, a running roll and a web running from the running roll normally out of contact with the fresh roll but adjacent thereto, of an end spindle for the fresh roll, a complete circular metal ring thereon, and an incomplete, or segmental, metal ring insulated from the first ring, a short segment in line with the segmental ring and insulated therefrom but electrically connected with the complete ring, brushes engaging both rings, and electromagnetic means for causing the web to be moved out of its normal path into contact with said roll for rotating it when the brush adapted to engage the ring segments is in en gagement with the first-named segment and for releasing the web when that brush is in contact with the second segment. 7

9. In a fresh roll rotating device, the combination of an end spindle for the fresh roll, a complete circular metal ring thereon, and an incomplete, or segmental, metal ring insulated from the first ring, a short segment in line with the segmental ring, and insulated therefrom, but electrically connected with the complete ring, brushes engaging both rings, and means for causing a web to be moved out of its normal path into contact with a roll for rotating it when the brush adapted to engage the ring segments is in engagement with the first-named segment and for releasing the web when that brush is in contact with the second segment.

10. In a pasted fresh roll rotating device, the combination of a spindle for supporting one end of the fresh roll having a circular contactdivided into two parts insulated from each other,

movable means for pressing a running Web out of its normal path to engage the surface of said fresh roll to rotate it by contact with the running web, a brush for said divided contact, and means whereby when one part of the contact is in contact with the brush said movable means will be withdrawn to allow the web to run in its normal path out of contact with said roll.

11. In a pasted fresh roll rotating device, the combination of a spindle for supporting one end of the fresh roll having a circular contact divided into two parts insulated from each other, movable means for pressing a running web out of its normal path to engage the surface of said fresh roll to rotate it by contact with the running web, a brush for said divided contact, and means whereby when one part of the contact is in contact with the brush said movable means will be withdrawn to allow the web to run in its normal path out of contact with said roll, with a detachable plug adapted to be applied to the spindle and containing contacts for completing an electric circuit constituting part of the lastnamed means, whereby when the plug is removed the last-named means will not be operative to move said movable means.

12. In a fresh web roll speeding up device for the purpose described, the combination with a fresh roll, a running roll'and a web running from the running roll normally out of contact with the fresh roll but adjacent thereto, of a web pressing means, a-solenoid for withdrawing said web pressing means, a spring for moving the web pressing means into operative position, means for breaking the circuit to deenergize the solenoid to leave it under the control of the spring, and contacts carried with the fresh web roll and so placed as to reestablish the circuit to the solenoid and withdraw the web pressing means once during each rotation of the roll.

13. In a fresh web roll speeding up device for the purpose described, the combination with a fresh roll, a running roll and a web running from the running roll normally out of contact with the fresh roll but adjacent thereto, of a web pressing means, a solenoid for withdrawing said web pressing means, a spring for moving the web pressing means into operative position, means for breaking the circuit to deenergize the solenoid to leave it under the control of the spring, contacts carried with the fresh web roll, a push button in a circuit, means in the last-named circuit for holding the solenoid deenergized if it is deenergized when the button is pushed to close its circuit, and means whereby if the solenoid is energized at that time it will stay energized until its circuit is broken through the contacts carried with the fresh roll, by the rotation of said roll to a predetermined point.

14. In a web-splicing mechanism, the combination of a rotatable magazine reel having a plurality of spindles for mounting a plurality of web rolls and a web pressing means, with means controlled by the spindle carrying the fresh roll for operating the web pressing means comprising a detachable plug for connection with the particular spindle carrying the fresh roll and means whereby the web-pressing means is prevented from operating until the plug is connected.

15. In a web splicing device, the combination with a support for a fresh web roll, a web roll thereon having paste on its leading edge, means for propelling the web roll engaging and operating on its circumference, and means for lifting the propelling means away from the roll during the passage of the pasted area and thereafter restoring the propelling means to contact with the roll.

16. The method of propelling a fresh roll which comprises applying paste to the leading edge of the roll, propelling the web by operation on its cylindrical surface, raising the propelling means during the passage of the pasted portion of the fresh roll, and. thereafter bringing the propelling means into contact with the roll.

17. The method of speeding up a fresh Web roll, prior to splicing with a running web, which consists in imparting a series of impulses to the fresh web roll for bringing its surface substantially to the speed of the running web and interrupting the speeding-up process once during each revolution of the fresh web roll by moving the impulse giving device out of contact with the fresh web r011.

18. In a web splicing device for splicing the pasted end of a new roll to the web of an expiring roll, the combination of means engaging the new roll for bringing the new roll up to the speed of the expiring web, and means for causing the first named means to contact with the new roll during the interval between each two passages of the paste line on the new r011.

HENRY A. WISE WOOD.

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