US2213109A - Rolling and wrapping machine - Google Patents

Description

Aug. 27, 1940. A SPlEVAK ROLLING AND WRAPPING MACHINE Original Filed Nov. 18, 1937 7 Sheets-Sheet 1 on. m: E as .2

LOUISASP/EVAK Aug. 27, 1940. A. SPIEVAK ROLLING AND WRAPPING MACHINE 7 Sheets-Sheet 2' Original Filed Nov. 18, 1937 9 s -1 1| w a 9 .e W. w m E 2 w 1 III lllll M G l w 1W8 V w v N m w m E s w m N A D .1

m H L G a N n f T. .1 I m H m m 5 3 W a n u mm 4 Q w 7 2 A NT 'LOUISASPIEVAK Aug, 27, 1940. L. A. SPIEVAK ROLLING AND WRAPPING MACHINE Original Filed Nov. 18, 1937 '7 Sheets-Sheet 4 N wa Aug. 27, 1940. A. SPIEVAK ROLLING AND WRAPPING MACHINE Original Filed Nov. 18, 1937 7 Sheets-Sheet 5 awe/Mom,- Lou/s AJPIEVAK Aug. 27, 1940- L. A. SPIEVAK ROLLING AND WRAPPING MACHINE 7 sheets-sheet *6 Original Filed Nov. 18, 1957 zlwvc wlool Lou 5 SPIEVAK Aug. 27,1940. 1.. A. SPIEVAK ROLLING ANDWRAPPING MACHINE Origifial Filed Nov. 18, 1937 7 Sheets-Sheet 7 g] wuam bcw Louis A 5 PIE V/IK 2,213,109 OFFICE ROLLING AND WEAPPING MACHINE Louis A. Spievak, Los Angeles, Calif., assignor, by

mesne assignments, to

Kalb County, Ga.

Alexander Dittler, De

Refiled for abandoned application Serial No. 175,289, November 18, 1937. This application December 23, 1938, Serial No.247,542

17 Claims.

This invention relates to a rolling and wrapping machine and, more particularly, to a machine for winding calendars having the usual metal bound upper edge into a compact package and then applying a wrapper to the exterior thereof. The main object of the invention is to provide an automatic machine having improved means for rolling and wrapping such calendars and the like, comprising novel chucks for engaging the opposed bound edges, means for winding the engaged calendars and means to prepare and supply string tearing adhesive edged wrappers to the calendars in the proper timed relation.

Other aims and advantages of the invention will appear in the specification, when considered in connection with the accompanying drawings, wherein:

Fig. 1 is a plan view of the invention;

Fig. 2 is an elevation showing certain portions thereof in section, and taken along the line 2-2 in Fig. 1;

Fig. 3 is a vertical sectional view taken along the line 3-3 in Fig. 1;

Fig. 4 is a transverse vertical sectional view taken along the line 4-4 in Fig. 1;

Fig. 5 is a transverse vertical sectional view similar to Fig. 4, but showing the parts in a slightly different position, this view being taken along the line 5--5 in Fig. 1;

Fig. 6 is a sectional plan view taken along the line 6-6 in Fig. 2 showing the gripping mechanism grasping one edge of a piece of sheet material prior to the same being wound and wrapped;

Fig. 'l is a view similar to Fig. 6 but showing the gripping mechanism in a withdrawn position; Fig. 8 is an isometric view of a rectangular forked member in which the gripping mechanism is mounted, said forked member being adapted to be slidably mounted in the chuck shown in Figs. 6 and 7;

Fig. 9 is a transverse vertical sectional view taken along line 9-9 in Fig. 1;

Fig. 10 is a transverse vertical sectional view I taken along line I0-l0 in Fig. 1;

Fig. 11 is a transverse vertical sectional view taken along line Il-ll in Fig. 1;

Fig. 12 is a sectional view taken at the splice portion along line l2-|2 in Fig. 2, showing the typical method employed in telescoping the shafts so that the Width of the machine may be varied;

Fig. 13 is a sectional view through the sealin roll at the splice point and taken along line l3l3 in Fig. 2;

Fig. 14 is a schematic view showing the various latches and their source of operation;

Fig. 15 is an isometric View. of a plain sheet of wrapping material as it is being drawn through the adhesive applying means;

Fig. 16 is an isometric view of a calendar showing the wrapper as it appears when first inserted within the folds;

Fig. 17 is an isometric view of a calendar after the same has been wrapped;

Fig. 18 is a diagrammatic view of the cycle of events as they occur during one revolution of the cam shaft;

Fig. 19 is a diagrammatic view showing means for preparing and feeding string tearing wrappers to the machine; and

Fig. 20 is a face view of a string tearing wrapping sheet.

The drawings accompanying abandoned application Ser. No. 175,289, filed November 18, 1937, for which this application is substituted, have been transferred to this application and one new sheet has been added.

Referring more specifically to the drawings, the numeral l0 denotes a suitable base upon which is mounted uprights H and i2, said uprights being secured thereto by any suitable means such as bolts [3 and It. The upright II is adjustably mounted on the base 10, suitable slots [3a being provided for the bolts 13.

'It is often desirable to vary the distance between upright H and upright l2 in order to receive articles of various widths for wrapping purposes. Therefore, the intermediate portion of the fixed upright 12 has a table member 15 secured thereto which, in turn, has its other end slidably mounted in the intermediate portion of upright i i. This table has a pair of longitudinal slots l1 and 18 extending its entire width and these slots provide a passageway for the upper layer of wrapper delivery chains 19 and 20. Plain wrappers are adapted to be cut from a continuous web and fed automatically to the delivery chains in proper timed relation. These chains have suitable grippers 2| secured thereon which are adapted to grip one edge of a suitable piece of wrapping material 22 and convey the same laterally into the machine. The grippers 2| are pivoted as at 23 to the chains and each has a depending leg 2la below the pivot point for contacting suitable cams 24 and 24a to open the same when it is desired to receive or release a piece of wrapping material 22. These grippers are normally held in a closed or gripping position by means of a suitable spring 25 (Fig. 3).

The conveyor chains l9 and 20 are mounted on suitable sprockets and 3i fixedly secured to shafts 32 and 33, respectively. The shaft 33 is rotatably mounted in suitable bearing brackets 35 on the base and the shaft 32 has its ends rotatably mounted in bearing brackets 36 secured to the side of upright l2.

The intermediate portion of shaft 32 has a suitable beveled gear 38 fixedly secured thereon which, in turn, meshes with another beveled gear 39, said beveled gear 39 being rotatably mounted on a stub shaft 40 and having a gear 4I integral therewith. This gear is adapted to mesh with the gear 42 which is mounted on the cam shaft 40. The gear 42 is rotated by a suitable pinion 44, said pinion 44 being fixedly secured upon main drive shaft 45.

The shafts 43 and 45 have companion shafts 43a and 4611 which are merely extensions and these shafts, together with their extensions, are rotatably mounted in the uprights II and I2. Shafts 43 and 45 also have restricted portions 43b and 45b integral therewith which are adapted to fit into suitable cavities in 430 and 450, respectively, (Figs. 1, 2 and 12). In other words, each shaft is provided with a means for extending its length so that, when the upright II is moved laterally of the machine to accommodate 9, different size wrapper, this connection will allow the adjustment without affecting the operation. In order to secure these shafts together after they have been adjusted properly, suitable set screws 43d and 45d are secured in the shafts 43b and 45b.

In the drawings it will be noticed that the lefthand portion of the machine in many respects is similar to these parts shown on the right hand portion, therefore the right hand portion will be described and like reference characters with the prime notation added will be given to many portions on the left hand side, since they are identical.

By observing Fig. 1, it will be noted that the right hand end of main drive shaft 45 has a suitable clutch hub fixedly secured thereon and integral with this hub is a tooth 5i. When the clutch is in an engaged position the tooth Si is adapted to contact another tooth 52 which is integral with clutch hub 53, said hub 53 being loosely mounted on the stub shaft 54, but being resiliently connected to the shaft by means of a suitable torsion spring 65. This torsion spring has one end connected to a flange 54a as at 51.

The shaft 54 is rotatably mounted in bearing which, in turn, is supported by the table I0. In order to rotate this shaft, a suitable V-type pulley is secured on the end thereof, said pulley having a belt 8i mounted thereon which is also mounted upon motor pulley 62 of motor 63. During the operation of the machine the motor 63 runs continuously and consequently the stub 54 continuously rotates. Since the clutch hubs 50 and 53 intermittently engage each other, it is necessary that the torsion spring 55 be provided so as to absorb the shock, which occurs immediately upon such engagement.

It is necessary for the winding and wrapping mechanism to be turned intermittently at the will of the operator so that a calendar or the material which is to be wrapped, may be inserted in the machine while it is stationary. When the calendar has been automatically rolled, sealed and ejected, it is very important that the machine be automatically stopped, and turned to a' position where another article may be inserted into the machine. During the normal stopping position, of course, it is necessary that the teeth 5| and 52 be disengaged, the position shown in Fig. 1 being an engaging position, at which time the winding and wrapping mechanism will be operated by the motor.

The clutch hub 53 has a suitable groove 53a in its periphery in which is adapted to fit,

a suitable roller 10 which roller is pivoted to one end of a suitable lever H (Figs. 1 and 11). Lever H is pivoted intermediate its ends as at 12 to a bearing 18 which is supported by base member I0. The endof the lever 1| nearest the observer in Fig. 1 has a suitable follower projection 14 thereon which is adapted to contact a side cam 15 which is mounted on a cam shaft 43.

When the cam 15 moves adjacent the projection 14 the clutches will be disengaged and a projection 14a will engage a latch 11 to cause the lever II to be held in a position in which the clutches will remain disengaged. Latch 11 is normally urged to rotate counterclockwise about a pivot pointJB by means of a suitable spring 19. A stop 80, however, is provided for limiting the counterclockwise movement of this latch when it is desired to start the winding and wrapping mechanism. This latch is manually released through a suitable cord or cable 8| which has one end thereof connected to the latch and its other end connected to an upstanding lever 82 which is fixedly secured on cross-shaft 83. This shaft has fixedly mounted thereon 8. depending lever 85 which has connected to its lower end a suitable rod 85, said rod having its other end slidably mounted in a bearing 88. An operating button 81 is secured on the end of rod 85; for manually operating the latch 11 at the desired time.

As hereinbefore stated, the machine normally stops in a calendarreceiving position as shown in Figs. 4 and 7. At this time, a calendar 90 is inserted to the position shown in Fig. 4, at which time the ends of the metal binding at the opposed edges of the leading end of the calendar will be positioned between clutch members or grippers which will move inwardly toward the calendar and grab the metal binding. Means for locating and holding the calendar 90 in the position shown in Figs. 2 and 4. will be presently described.

In order to properly locate the bound end of the calendar when inserted in the machine, a register or stop and a pair of converging guides are provided. The converging ends of these guides, of course, must be substantially at the center of the rolling position. By referring to Figs. 2 and 4, it is seen that a guide 94 is pivotally mounted on a stud shaft 95, said shaft being adapted to project outwardly from the upright I2. This guide is biased to rotate clockwise against a stop 91 by means of a suitable torsion spring 96. The upper end of the guide 94 is disposed near the axis around which the calendar 90 is rolled. Another lever I00 is pivotally secured as at IM to the upright I2 and is biased to rotate counterclockwise by means of a suitable tension spring I02. The counterclockwise movement of this lever is limited, however, by a suitable stop I03 and when it contacts this stop, its upper end will be in the pathway of a calendar which is being inserted.

It should be noted, however, that the stop I03 is not engaged by the lever I00 when the guide 94 is in the position shown in Fig. 4, since the upper end of the lever I00 will then rest against the upper end of the guide 94, that is, if there is no calendar in the machine. In order for the upper end of the guide 94 to act as a stop, it is' necessary that the torsion spring 96 be of a greater strength than the tension spring I02. The pressure between the upper ends of the guides 94 and I00 applies holding force to the opposed faces shown in Fig. 4 the metal binding on the leading of the calendar as it is being pulled upwardly and inserted to the position as shown in Fig. 4, thereby holding it in the proper position until the grippers, which wilt be later described, move out and engage the me al binding at the leading end of the calendar.

A stop lever I06 is provided directly above the winding axis of the calendar, which has a suitable shoulder I06a near its lower end against which the leading end of the calendar is adapted to abut when it is in the correct position to be engaged by the gripper chucks for winding. This shoulder I06a is adjustably secured near the lower portion of the stop lever I06 by means of a set screw I0'I which penetrates slot I06b in lever I06. The upper end of the lever I06 is fixedly secured to a shaft I08, said shaft being adjustably secured to its companion shaft I 08a. The adjustable connection between these shafts comprises a restricted portion I08b which is integral with shaft I08. The restricted portion fits into the cavity I080 of shaft I08a. and is normally held in ad justed position by means of set screw I08d. The ends of shaft I08 and mm are rotatably mounted in uprights I2 and II, respectively. p

A suitable torsion spring I09 normally tends to rotate the stop I06 clockwise (Figs. 1, 2 and 4), the clockwise rotation being limited by means of a suitable stop IIO which projects from the upright I2 and is disposed in the path of a radially disposed stud III on shaft I00. In other words, the torsion spring I09 will rotate both of the shafts I08 and I08a until the projection III contacts the stud I I 0 (see Figs. 4 and 5) With the calendar inserted in the position end will coincide with the winding axis and will be in such position that the grippers shown in Figs. 6 and 7 will engage the ends of the same. The construction of the winding chucks, in which the grippers are mounted, is shown with the parts in different positions in these figures. It is necessary for the grippers to be normally withdrawn from the pathway of the calendar when it is first inserted. Then it is necessary to advance these grippers to a gripping position, after which the chucks and grippers are rotated to wind the calendar about the metal binding into a compact roll.

Grippers H5 and H6 are pivoted as at I" and H8, and are also disposed within a suitable slot II9 of a piston I20 (Figs. 6, 7 and 8). A pair of these grippers is disposed on opposed sides of the bound leading edge of the calendar 90 and along the axis of winding. The piston I20 has slots I2I therethrough which are adapted to clear a pin I22, said pin having its ends fixed in the chuck body I23 (see Fig. 2). The outer ends of the grippers H5 and H6 are normally held in position shown in Fig. 7 by means of a suitable tension spring I25. This figure shows the position of the parts at the time the grippers are in a withdrawn posit'on, that is, out of the path of the calendar. e piston I20 and its associated parts are slidably mounted in a rectangular cavity I26 whichis cut in the chuck I23, and this piston is so positioned that its sliding movement is along the longitudinal axis of rotation.

As heretofore stated, the object of this chuck mechanism is to first grip the ends of the binding on the calendar 90 and then wind and wrap it. In other words, when the calendar is inserted-to the position shown in Fig. 4, the piston I20 and its associated grippers are in a withdrawn position as shown in Fig. '7. When the piston I20 is advanced to the left or to the position as shown in Fig. 6, the cam surfaces II5a and IIIia of the grippers will ride upon the opposed sides of fixed pin I22 to cause the inner gripping ends to engage the calendar, at the latter part of the stroke of the piston.

It is very desirable to delay the closing of these grippers as long as possible so that a greater tolerance of the positioning of the calendar 90 may be allowed and, at the same time, allow the calendar to still be gripped. For example, should the binding on the calendar at the point where the grippers engage the same be crooked or bent, it would be necessary to have a greater clearance between the jaws of the grippers and the calendar so that the calendar could be properly inserted. The chucks I23 are rotatably mounted in fixed bearings I30 which, in turn, are fixedly secured to the uprights II and I2 by means of set screws I3I.

The piston I20 by virtue of its rectangular shape, will rotate with the chuck I23, because the members I20 slidably fit into the rectangular cavities I25 within the chucks. The end of each chuck has a suitable gear I34 fixedly secured thereon, said gears being adapted to mesh with gears I35 and I35 mounted on the main drive shaft 45. The counterclockwise motion of the main drive shaft 45 in Fig. 4 will impart a clockwise rotation to the chuck I23 and its associated parts in this same figure to cause a winding motion to be imparted to the calendar after it has been inserted and also to wind the same substantially as shown in Figs. 5. 16 and 1'7.

Integral with the right hand end of the piston I20 is a shaft I 31 which has mounted on its end a suitable grooved hub I38. Riding in the groove of hub I38 are suitable rollers I39 which are secured on one ,end of cam lever I40, said cam lever being pivoted intermediate its ends as at I4I to the upper side of bearing I42. By referring to Figs. 1 and 2 it will be noted that the bearing I42 is fixedly secured to base plate I0 whereas the bearing I42 is adjustably secured to this same plate by means of suitable bolts I42u. which penetrate slot I42b in base plate I0. On the other end of the lever I40 is mounted a suitable roller I43 which is adapted to contact a cam I44, fixedly secured to cam shaft 43 by means of a set screw I45 (see Fig.

1). With the top of the shaft 43 rotating towards the observer in Fig. l, the cam I44 will ride beneath the roller I43 and thereby rotate the lever I40 clockwise to withdraw the hub I38 and piston I 20 from the bound edges of the calendar after the same has been wound and wrapped. This withdrawn position is shown in Fig. 7. v

This lever I40 has also a suitable latch I50 pivoted thereto as at I5I, and this latch is held against a stop I52 by means of a tension spring I53. When the cam I44 withdraws the piston I20 to the position shown in Fig. 7 the free end of latch I50 will hook over an upstanding post I54 which projects upwardly from the table I0, when latch I50 engages this post the parts will be held in a withdrawn position.

At a completion of a cycle, the machine is at a standstill and a new calendar is inserted therein to the position shown in Fig. 4. At this time it is desirable to release the piston I20 to allow the grippers to engage the calendar, as shown in Fig. 6. In order to eifect this release a cord I56 has one end thereof secured to the latch I and its other end secured on cross-shaft 83 (Figs. 1 and 14). When the button 81 is pulled the shaft 83 is rotated to release the latch I50 from the post I54 which will allow the tension spring I to rotate the arm I40 counterclockwise (Fig. 1), and this rotation will move the parts I31, I38, I20 and H5 and H6 inwardly so as to cause the calendar to be gripped (Figs. 1 and 6).

A pressure roller I85 is adapted to engage the periphery of the calendar 90 as it is being rolled in the manner shown in Fig. 5. This roller has a restricted portion Ib extending therefrom which is adapted to telescopically fit into a suitable cavity I65c in companion roller I65a, both of these rollers being fixedly secured to each other by means of a set screw I65d. The ends of the rollers I65 and I65a are rotatably mounted in levers I68 and I68 which levers have their upper ends adjustably secured on shafts I69 and I690. by means of suitable set screws I10 and I10. Shafts I69 and I69a are telescopically joined to each other by means of an intermediate restricted portion 3% which fits into a suitable cavity I690 and is adjustablyv secured by means of set screw I69d.

It is desirable that pressure rollers I65 and I65a be provided with a suitable friction surface, such as a rubber cover I86, to make a compact roll. This roller is normally held downwardly in the position shown in Figs. 4 and 5 by a tension spring "I. After the calendar is raised to the position shown in Fig. 4, that is to the feeding position, it is desirable that the pressure rollers I65 and I65a be withdrawn from the position shown in Figs. 4 and 5, so that the operator may have room to feed the calendar, or to locate it in the proper position. The means for withdrawing these rollers comprises a lever I15 which is fixedly secured to shaft I69 by means of a suitable set screw I 16. The free end of this lever I15 has a stud I11 projecting therefrom in the path of a bell crank I18. This bellcrank is pivoted as at I19 to the upright I2, said bellcrank having a depending leg with a roller I mounted thereon which is adapted to contact cam I8I which, in turn, is fixedly secured upon cam shaft 43. As previously stated, the tension spring "I normally forces the pressure rollers I and I650. against the calendar as it is being rolled, wrapped and sealed.

After the calendar has been completely wrapped the chuck jaws are withdrawn to the position shown in Fig. '7, at which time the pressure rollers will assist the members 94, I 00 and I06 when ejecting the rolled up calendar from the winding position. When thus ejected, the calendar will roll downwardly in the direction of arrow in Fig. 5.

After the calendar has been rolled, it is evident that the guide lever I00 will be rotated against stop I03 and at this time the upper end of this lever will be disposed beneath the rolled calendar; consequently, when the calendar is ejected, the upper inclined sides of the members I00 will guide the rolled calendar in its downward travel. At this time, it is desirable to withdraw the pressure roll, as previously stated. It is seen by observing Fig. 4 that, when the high side of cam I8I moves beneath the roller I80, the bellcrank I18 will be rotated counterclockwise, thereby rotating the levers I15 and I68 clockwise to cause the pressure rollers I65 and I65a to withdraw. In order to hold this pressure roll elevated in an unobstructing position, so that an unrolled calendar can be easily deposited, a suitable latch I85 is pivotally secured to the depending leg of the bellcrank I18 as at I86. This latch is normally forced downwardly against a suitable stop I81 by means of leaf spring I88. When the roller I 80 rides upon the high side of the cam I8I the free end of the latch I85 will engage the stationary catch I89 to hold the rollers I65 and I65a in such elevated unobstructing position.

After the calendar has been inserted, the roller I65 may be returned to the position shown in Fig. 4. This is effected by pulling the knob 81 and rod 85 which will cause the cross shaft 83 to be rotated clockwise in Fig. 4, thereby rotating the upstanding lever I90. Since a cord I Si is disposed between the latch I85 and lever I90, the latch will be rotated to a disengaged position. It will be noted that a tension spring I93 is connected to the lever I90 and also to the upright I2 to return all of the levers which are attached to the cross shaft 83 to a normal position.

Means have been shown and described for rolling and wrapping the calendar after it has been positioned in the machine. Now, the means for delivering a wrapper 22, means for rendering the wrapper adhesive along one edge. and the process of depositing the wrapper within the folds of the calendar will be described.

It is necessary to first move the wrapper laterally into the machine, then by means of the grippers 2| and chains I9 and 20 (Figs. 1 and 4), and then by other means to move this same sheet longitudinally into the folds of the calendar which is in the process of being rolled. These wrappers follow each other into the machine successively and the grippers 2I are so spaced upon the chains I9 and 20 that they enter between the uprights II and I2 just as the preceding wrapper in its longitudinal movement onto the rolled calendar has cleared the pathwa y of the incoming wrapper, when the incoming wrapper moves to proper position, between the uprights II and I2, the grippers 2I will release it and allow a second gripping means to engage it and move it longitudinally of the machine and onto the rolled calendar.

In order to release the wrapper 22 as it moves laterally into the machine, the lower leg 2Ia. of the gripper 2I is adapted to contact suitable earns 28 and thereby release it in the manner shown in Figs. '3 and 4. As the wrapper 22 passes into the machine, one edge thereof is drawn between rollers I and I96 (Figs. 3 and 15) said rollers being rotatably mounted on brackets I91. The upper roller I95 is normally contacted by a glue roll I98, which roll is rotatably mounted in the side walls of glue pot I99, said glue pot being pivotally secured as at 200 to support 20I. It is seen that a suitable layer of adhesive 22a is deposited along the trailing edge of the wrapper so that when the wrapper is inserted between the convolutions of the calendar and wrapped therearound, this edge will be adhesively secured to the periphery of the package by means of pressure roller.

With the wrapper in the position shown in Fig. 3 it is then necessary to move it longitudinally, that is to the left in Figs. 4 and 5 at the proper time. Suitable feed rollers 205 and 205' are fixedly secured upon the cam shaft 43 each of said rollers having a cam surface 206 on its periphery which is of such length as to feed the leading edge of the wrapper 22 the proper distance to the left in Figs. 4 and 5 so that this edge will be inserted between the trailing end of the calendar and the wound package.- An overhead guide I080 is provided on the lower end of member I06 which properly guides the leading edge of the incoming wrapper as it moves from the position shown in Figs. 4 and 15 to the position shown in Figs. 5 and 16.

The cams 206 are adapted to cooperate with.

normally holds these shafts in adjusted position.

After the calendar has been rolled substantially to the position shown in Fig. 5, it will be noted that the trailing edge of the calendar is held so as to form an acute angle with the line of travel of the wrapper. The object is to insure that the wrapper will be guided properly into the convolutions of the roll. The trailing end of the calendar is held in this position by means of suitable lugs 2I0 mounted on a shaft 2I I.

The feed roll 205 and cam 206 make one revolution per cycle, that is, for each calendar which is wound, wrapped and sealed. The cam 206 on the feed roll is so timed that itwill deliver the forward edge of the wrapper 22 within the convolutions of the calendar just before the completion of the winding thereof. Suitable set screws 205a and 205a are provided so as to adjust the position of the cams 26 on shaft 43 to correspond to the length of the calendar upon which the wrapper is used. By so delivering the calendar, the remaining tail portion is folded over the leading edge, thereby frictionally engaging the same.

It is seen that, when the tail end of the wrapper 22 is wound around the roll, the pressure roll I65 will press the surface 22a which has been rendered adhesive against the periphery of the roll, thereby making acompact, wrapped and sealed package.

It is seen by referring to Figs. 4, 5, 6 and 7, that it is very important for the grippers I I5 and H6 to stop in a vertical position. that is, so that the slot between the engaging ends of these grippers will be vertical. This is accomplished by disengaging the clutch teeth 5I and 52 (Fig. 1) immediately before the end of a cycle and allowing the inertia of the machine to continue the rotation thereof a short distance until a suitable brake stops the same at a position where the slot between the grippers I I5 and I I6 will be vertical. By observing Figs. '1, 9 and 10, it can be seen that the cam disk I44 has a cam surface 2I5 secured thereto which contacts one end of a stop lever 2 I 6 and causes this lever to rotate a slight amount clockwise about pivot screw 2", which screw is mounted on bearing 2 I8. When this is done, the left hand end of this lever is disposed in the path of a suitable stop arm 2 I 9, which is fixedly secured to the cam shaft 43. The stop arm is so positioned upon this shaft that when it contacts the left hand end of the lever 2I6 the machine will stop with the grippers at the desired location for receiving a new calendar.

Before winding a new calendar, it is necessary to rotate the left hand end of the lever 2I6 out from the path of lever 2I9 so that the machine may continue to rotate after a new calendar has been inserted. This removal of the obstructing lever 2I6 is effected through a suitable cord- 220, one end of which is secured to the lever 2I6 and its other end being secured to the upper end of a suitable lever 22l, said lever being fixedly secured to the cross shaft 83. To effect this release button 81 is pulled, and the rod 83 is rotated in the same manner as described for the other latches.

After a new calendar has been inserted to the proper position, it is necessary to release the grippers H5 and H6, lower the seal rolls I65 and I65a and remove the brake 2I6, all of these operations taking place prior to throwing the clutch teeth 5| and 52 in engagement. In order to effect all of these controls at the same time, but at the same time delay the action of the clutch, a slack has been provided in the cords 0| which operates the clutch latch. In other words, when the button 81 is operated, the gripper latch, sealing roll latch and brake latch will be simultaneously released and shortly thereafter, the clutch latch II will be released (see Figs. 1 and 14) Fig. 19 shows how string tearing wrappers. are prepared and cut to be fed into the machine. In this instance, a paper roll 222 is mounted at the extreme left hand side of the machine and the paper is guided between pairs of feed rollers 223 and 224, the upper rollers being driven continuously by the machine and the lower rollers being adapted to be moved downwardly to disengage the web at properly timed intervals to permit the web to be cut by a reciprocating knife 225. The mechanism for releasing the rollers and simultaneously operating the knife is not shown. Obviously, ordinary cams are employed for this purpose.

Between the first two pairs of feed rollers 223 and 224 are a series of pairs of paper guide rolls 226 and 221 and a tearing string 228 is fed from a spool 229 through a glue pot 230 over a guide sheave 23I between the first pair of these rolls, so that it is cemented on the web by the pressure of the rolls a short distance from and parallel with the sealing edge of the paper (Fig. 20).

The cut off wrappers are delivered by the last pair of feed rollers 223 and 224 to table 232 leading to the feeding chain. The machine is -0 timed that a cut Wrapper is prepared during each cycle to be pushed into the chain grippers 2I.

. Operation Fig. 18 shows a cycle of events during one revolution of the cam shaft 43. This is a diagrammatic showing of the synchronization of the machine to illustrate the timing of each operation. Let the letter A represent the beginning of a cycle at which time the machine is at a standstill. Then, the following events occur in the order named:

A. Insert the calendar 90 between the chucks.

a. Insert a prepared wrapper 22 in grippers 2I. b. Pull button 81.

1. Grippers H5 and H6 grab opposed edges of calendar. 2. Sealing rollers I65 and I65a drop to position. 3. Brake 2I6 is released. 4. Clutch teeth 5I and 52 engage each other. 0. Rolling begins and chain gripper delivery begins. B. Longitudinal movement of wrapper 22 to the calendar begins by virtue of cams 206 and 206.

C. Feeding of wrapper 22 by cams 208 and 206' ends. D. Sealing by the pressure rollers I65 and l65a begins. D to E. Sealing time (variable depending on the length of calendar). E to F. Grippers H5 and H6 withdraw from ends of wrapped calendar. G. Pressure rollers I65 and I65a eject calendar from the machine wrapped. G to H. Pressure rollers I65 and |65a withdraw to allow a new calendar to be inserted. I to J. Brake H6 is thrown in path of stop arm 2l9. K to L. Clutch teeth 5| and 52 are disengaged. L to A. Momentum moves machine forward until stop arm 2l9 engages a brake M6 at which point the cycle ends. This last space or interval is provided in order to clear the acting parts of the cam 15 so that the clutch and its adjoining parts may be in a position to to re-engage by releasing latch I1. Meanwhile, the knife has cut oil a new wrapper and it is ready to be fed into the machine.

Obviously, the present invention is not restricted to the particular embodiment thereof herein shown and described. Moreover, it is not indispensable that all the features of the invention be used conjointly, since they may be employed advantageously in various combinations and sub-combinations.

What is claimed is:

1 1. A machine for rolling and wrapping bound sheets of paper comprising, in combination, means having automatic gripping jaws to grasp the opposite ends of a binding; means connected to move the gripping jaws to engage and release the binding; stop members to position the bound edge to be engaged by the 'jaws; means for guiding and feeding a sealing wrapper into the sheets during the rolling thereof; and a spring urged roller connected to apply rolling and sealing pressure to the sheets and wrapper to make a compact roll.

2. A machine for rolling and wrapping calendars having sheet metal binding strips at their upper edges comprising, in combination, chucks having means to engage the metal binding and wind the sheets thereon; means to operate the chucks to engage and release the binding; guiding and stop means to position a calendar to be engaged by the chucks; means for preparing sealing wrappers with adhesive; and means to apply and seal a wrapper on the roll.

3. A machine for rolling and wrapping a calendar bound together by a stiff binder at the top thereof, comprising a pair of'rotary grippers for engaging and gripping the ends of the bound portion along the edges of the calendar; means for gripping a wrapper and moving it into the machine; means for applying adhesive to the wrapper; means for releasing said wrapper after it has moved to a predetermined point in the apparatus; gripping means for engaging the leading end of the wrapper and moving it into the calendar immediately before the completion of rolling the same; means for sealing the wrapper on the roll; and automatic means for driving all of said parts in timed relation to each other.

4. A machine for winding into a roll a plurality of sheets of material which are bound together by a stiff binder at one end, comprising, in

combination, a pair of grippers for engaging the ends of the stiff binder and imparting rotation thereto to wind said sheets thereon into a roll; means for feeding a wrapper into the roll before completion of the roll; means for applying adhesive to the trailing end of the wrapper before it reaches the roll; means for sealing the wrapper on the roll; means for withdrawing said grippers from engagement with the sheets after the wrapper has been placed on the roll and ejecting the roll from the machine; and means for automatically controlling the machine to permit it to complete a cycle of operations and stop in a predetermined position ready to receive another set of sheets of material.

5. A machine for winding a calendar having a bound upper edge into a roll comprising, in combination, a pair of grippers for engaging and gripping the binding; means for imparting rotation to the grippers 'to wind the sheets into a roll; means for conveying a sheet of wrapping material into the machine in timed relation to the length of the calendar; means for applying adhesive to one edge portion of the wrapper; other means for feeding the edge of the wrapper which is opposed to the adhesive edge into the roll being wound; means for applying pressure to the roll and wrapper to cause the adhesive edge of the wrapper to adhere to next preceding convolution of the wrapper; and means for withdrawing the grippers from contact with the sheet, whereby the pressure applying means will eject the finished roll from the apparatus.

6. A machine for winding bound edged calendars and the like into a roll comprising, in combination, a pair of opposed gripping members slidable towards each other on a common axis to engage the bound edge of the calendar; means for imparting rotation to the gripping members to wind the calendar on the bound edge in the form of a roll; means for applying pressure to the roll as it is being formed; means for feeding a sealing wrapper into the machine; means for applying adhesive to the sealing edge of the wrapper;- means for engaging the wrapper and feeding its leading edge into the roll before its completion to be wound into and around the completed roll with its trailing adhesive edge secured to the next preceding convolution of the wrapper by the pressure applying means; and means for automatically releasing said gripping members from engagement with the calendar so the pressure roll can eject the same from the machine.

7. In a machine for rolling and wrapping a plurality of superimposed sheets bound together at one end such as calendars, means for engaging the binding and imparting rotary motion thereto; means for feeding a wrapper into the'machine; means for guiding the wrapper into the trailing end of the calendar when it is almost rolled into a complete roll; means for applying a tearing string and adhesive to the wrapper at its trailing end before it is fed into the roll of the calendar; means for applying pressure to the calendar and the wrapper during the rolling operation; and means for withdrawing the engaging means from the bound end of the calendar after the wrapper has been rolled therearound, so that the pressure applying means may eject the rolled calendar from the machine.

8. In a machine for rolling and wrapping a plurality of superimposed sheets bound together at one end, means for engaging the binding and imparting rotary motion thereto; means for feeding a wrapper into the machine and to apply adhesive to the wrapper at its trailing end relative to the direction of travel of the wrapper into the roll; means for guiding the wrapper into the trailing end of the sheets when it is almost rolled into a complete roll; means for applying pressure to the sheets and the wrapper during the rolling operation; and means, for withdrawing the engaging means from the bound end of the sheets after the wrapper has been rolled therearound, so that the pressure applying means may eject the roll from the machine.

9. In a machine for rolling and wrapping a plurality of superimposed sheets bound together at one end, means for engaging the binding and imparting rotary motion thereto to roll the sheets; means for feeding a wrapper into the machine and to apply adhesive along one edge thereof; means for guiding the wrapper into the trailing end of the sheets by the edge of the wrapper opposite the adhesive coated edge when the sheets are almost rolled into a complete roll; means for applying pressure to the sheets and the wrapper during the rolling operation; and means for withdrawing the engaging means from the bound end of the sheets after the wrapper has been rolled therearound.

10. A machine for winding into a roll a plurality of sheets of material which are bound together at one edge thereof, comprising, in combination, means for engaging and holding the ends of the bound edge and imparting rotation thereto to wind said sheets thereon into a roll; means for feeding a wrapper into the roll before completion of the rolling operation; means for applying adhesive to the trailing end of the wrapper before it reaches the roll; means for releasing said engaging means from the ends of the binder after the sealing of the wrapper; and means for automatically controlling the machine to permit it to complete a cycle of operations and stop in a predetermined position ready to receive another set of bound sheets of material.

11. In a machine for rolling and wrapping a plurality of superimposed sheets bound together at one end, means for engaging the binding and imparting rotary motion thereto to roll the sheets; means for feeding a wrapper into the machine and to apply adhesive along one edge thereof; means for guiding the wrapper into the trailing end of the sheets by the edge of the wrapper opposite the adhesive coated edge when the sheets are almost rolled into a complete roll; means for applying pressure to the sheets and the wrapper during the rolling operation; to tightly roll the sheets and the wrapper and to press the adhesive coated edge on the wrapper of the roll; and means for disengaging the engaging means from the binding and withdrawing the engaging means from the roll in directions parallel to the longitudinal axis of the roll after the sheets and wrappers have been completely rolled and the wrapper sealed.

12. A machine for winding bound edged sheets into a wrapped roll, comprising a pair of engaging means slidable towards each other on a common axis, each engaging means being adapted to engage a short end portion of the bound edge; means for imparting rotary motion to the pair of engaging means to wind the bound sheets on the bound edge into the form of a roll; means for applying pressure to the roll as it is being formed; means for feeding a wrapper into the machine with an adhesive section on the trailing edge thereof; means for engaging the wrapper and feeding its leading edge into the roll of sheets before its completion to be wound into and around the completed roll of sheets and the adhesive section being secured to the next preceding convolution of the wrapper; and means for releasing the pair of engaging means and mov= ing them out of the roll so that the completely wrapped and sealed roll may be ejected from the machine.

13. A machine for rolling and wrapping bound sheets of paper comprising, in combination, a rotatably mounted piston, a pair of gripping means pivotally mounted in the piston and having means for opening and closing the gripping means; means for moving the piston to open and close the gripping means and to move the piston axially relative to the rotation of the piston and gripping means to engage and release the binding edge of the sheets; means for automatically operating the gripping means to engage, rotate and release the latter; and automatic means for feeding a wrapper to the sheets just before completion of the rolling thereof.

14. A machine according to claim 13, in which automatic means are provided to apply a sealing pressure to the sheets and wrapper during the rolling thereof.

15. In a machine for rolling and wrapping a plurality of'superimposed sheets bound together at one end, means for engaging the binding and .imparting rotary motion thereto to roll the sheets; means for feeding a wrapper into the machine and to apply adhesive along one edge thereof; means for guiding the wrapper into the trailing end of the sheets by the edge of the wrapper opposite the adhesive coated edge when the sheets are almost rolled into a complete roll;

means for applying pressure to the sheets and the wrapper during the rolling operation; means for withdrawing the engaging means from the bound end of the sheets after the wrapper has been rolled therearound; and means for stopping and adjusting the engaging means after a rolling operation to correctly position the engaging means to receive the next bound sheets to be rolled and wrapped.

16. A machine for winding into a roll a plurality of sheets of material which are bound together at one edge thereof, comprising, in combination, means for engaging and holding the ends of the bound edge and imparting rotation thereto to wind said sheets thereon into a roll; means for feeding a wrapper into the roll before completion of the rolling operation; means for applying adhesive to the trailing end of the wrapper before it reaches the roll; means for releasing said engaging means from the ends of the binder after the sealing of the wrapper; means for automatically controlling the machine to permit it to complete a cycle of operations and stop in a predetermined position ready to receive another set of bound sheets of material; and manually operated means for starting a new cycle of operations after the bound sheets to be rolled and wrapped are inserted in the engaging and holding means.

1'7. A machine according to claim 10, in which the last-mentioned means includes latching devices, and in which manually-operated means are provided for releasing the latching devices for starting a new cycle of operations after the bound sheets to be rolled and wrapped are in serted in the engaging hand holding means.

LQUIS A. BPIEVAK.

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