US1234121A - Sheet-delivery mechanism. - Google Patents

Description

F. H. BEROLD.

SHEET DELIVERY MECHANISM.

APPLICATION FILED NQV. 28.1913" v Patented July 24, 19147.

4 SHEETS-SHEET 1.

w/w y?? F. H. BEROLD. SHEET DELlVERY MECHANISNI. APPLICATloN FILED Nov.2s.1913.

Patented July 24, 1917.

4 SHEETS-SHEET 2 www,

y n www2. www

F. H. BEROLD.

SHEET DELIVERY NIECHANISIVI.

APPLICATION FILED NOV. 28, 1913.

4 SHEETS-SHEET 3.

Patented July 24, 1917.

E M I??? wm .mu .NEI

F. H. BEROLD.

SHEET DELIVERY NIECHANISIVI.

APPLICATION FILED NOV. 28. ISIS.

Patented Ju1y24, 1917.

fia

FREDERICK H. BEROLD, OF WYOMING, OHIO.

SHEET-DELIVERY MECHANISM.

Specication of Letters Patent.

Patented July 24, 1917.

Application led November 28, 1913. Serial No. 803,562.

To all whom t may concern:

Be it known vthat l, FREDERICK H. BnRoLD, a citizen of the United States, residing at Wyoming, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Sheet Delivery Mechanism, of which the following is a speciication.

My invention relates to sheet delivery mechanism applicable for employment in delivering sheets in printing machinery, ruling machinery, bronzing machinery, and the like. I have illustrated the same in connection with a printing machine, and I shall so describe the same.

The actuating means for the sheet-receiving device herein shown and described are also shown, described, and are claimed in a companion application for patent on improvements in sheet delivery mechanism, eX- ecuted by me of even date herewith, filed November 2S, 1913, Serial No. 803,561, and are therefore herein not more particularly claimed, the parts and the relations of parts which are however not shown and described in said companion application, being herein claimed.

It is the object of my invention to provide novel means for removing the sheet from the sheet-receiving device; further to provide novel adjusting' means for said removing means; further to provide novel means for timing the relations of operation between the sheet-receiving device and the sheet-removing device, and the invention will be readily understood from the following description and claims, and from the drawings, in which latter:

Figure 1 is a side elevation of my improved device, shown in connection with so much of a printing machine as is necessary to illustrate my invention.

Fig. 2 is a central vertical longitudinal section of the same, taken on the line 2 2 of Fig. 3.

Fig. 3 is a horizontal section of the same taken on a line corresponding to the line 3 3 of Fig. 2.

Fig. 4 is a vertical longitudinal section, taken on the line 4- 4 of Fig. 3, showing one of the sprocket-chains and its attendant mechanism.

Fig. 5 is a cross-section of the same taken on the line 5 5 of Fig. 4.

Fig. 6 is a cross-section of the same taken on the line 6 6 of Fig. 4.

F ig; 7 is a cross-section of the same, taken on the line 7 7 of Fig. 4.

Fig. 8 is a horizontal section of the same, taken on the line 8 8 of Fig. 7.

Fig. 9 is a cross-section showing the gripper mechanism of the transfer cylinder, on a line corresponding to the line 9 9 of Fig. 3.

Fig. 10 is a cross-section on the line 10 10 of Fig. 3, Vshowing the stripper mechanism, partly broken away.

Fig. 11 is a rear end elevation, partly broken away, of the adjusting means for the stripper mechanism.

Fig. 12 is an inside elevation of the adjustr ing and operating means of the stripper mechanism, partly in section on the line 12 12 of Fig. 3; and,

Fig. 13 is a longitudinal section of the buffer means, taken on the line 13 13 of Fig. 3.

21 represents the main cylinder, shown as an impression cylinder, journaled in suitable bearings in the main frame 22 of the machine and cooperating with a suitable type or plate cylinder, hereinafter referred to as a plate cylinder 23. This plate cylinder is on a shaft 24 journaled in suitable bearings in the main frame. The sheet to be printed or otherwise operated upon is fed from a suitable feed-board 25, and is acted on by suitable grippers 26 on the impression cylinder, operated in suitable manner for carrying the sheet about the impression cylinder and delivering it to a transferier 27. This transferrer comprises a shaft 30 journaled in bearings 31 in the main frame. It has a gear 32 thereon driven in suitable manner from a gear on the shaft 24.

A suitable number of sheet-supporting rolls 33 and draw-rolls 34 are mounted on the shaft 30 and are adjustably placed lengthwise of said shaft, as by means of set-screws 35. The supporting rolls have serrated peripheries 36 for reducing contact thereof with the sheet to the minimum, and the draw-rolls have narrow peripheries 37 arranged to be placed at suitable points crosswise of the sheet. The rolls on the shaft 30 are provided with grippers 33 which coact with gripper-faces 39 on said rolls, and are respectively secured to a gripper-shaft 40 journaled in bearings 41 in said rolls.

46, 47, are a pair of bearer-disks which coperate with bearer-disks 48 on the impression cylinder. The bearer-disk 46v forms a housing for mechanism for operating the gripper-shaft'40. The gripper-shaft 40 is ournaled in a bearing 49 in thev bearerdisk 46 and has a segment-gear 50 rigid thereon.Y An arm 51 is pivoted on a pin 52 secured in the bearer-disk 46 and has a segment-gear 53 thereon which meshes withn the segment-gear 50. The gripper-shaft 40 has an arm 54 rigid thereon with which a rod 55 is articulated at 56. A spring 57 is coiled about said rod and is located between a shoulder 58 on said rod and a rocking bearing 59 on a pin 60 in the bearer-disk 46. The arm 54 is arranged to strike a stop 62 for limiting the sheet-coiitacting movement of the grippers 38 urged by the spring.

63 is a cam secured to the main frame about which a roller 64 on the arm 51 rotates for operating the grippers 38. The grippers 38 of the transferrer are arranged to grip the forward edge of the sheet as the same is released by the grippers on the impression cylinder, for transferring the sheet from the impression cylinder to the transferrer and delivering the same to the sheet-receiving device.

This delivery of the sheet to the sheet receiving device from the transferrer is accomplished by the draw-rolls 34 and coacting draw-rolls 68, the latter adjustably positioned lengthwise of'a shaft 69 by set-screws 70. The shaft 69 is journaled in bearings 71 on levers 72 secured to a rock-shaft 73 journaled in bearings 74 in the main frame. A set-screw 75, received through each of the levers against a rigid part of the main frame, positions the coacting draw-rolls with 4@ relation to the draw-rolls on the shaft 30, the coacting draw-rolls in practice being spaced a distance from the draw-rolls just suiiicient to make firm contact with the sheet on both sides thereofI for directing the sheet in a direction between said draw-rolls toward the sheet-receiving device, where it is delivered printed or wet side up. rlhe shaft 69 has a gear 76 fast thereon which is meshed by the gear 32 fast on shaft 30 of 5e the transferrer.

The sheet-receiving device is instanced as a reciprocating carriage 81 having sheetsupports thereon, shown as delivery-sticks 82 thereon. The carriage comprises sideframes 83 mounted on wheels 84 rotating on axles 85 secured in bearings 86 of the sideframes. The side-frames are connected by a cross-bar 87 rigid therewith. The crossbar has saddles 88 adjustably secured thereto, the saddles having the delivery-sticks 82 secured thereto as by screws 89. The saddles are adjustable lengthwise of the cross-bar for positioning the delivery-sticks at suitable points crosswise of the machine.

The wheels 84 move lengthwise of the machine between tracks 90, 91, for moving the carriage forward and back under the transferrer.

T he carriage is reciprocated by means of 'liexible propelling means arranged in op- 70 positely moving stretches received at their ends about rotating supports, and shown as sprocket-'chains 96 which pass about sprocketwheels 97, 98, for forming stretches 99, 100, supported on guides 101, 102. Each of the sprocket-wheels 97 is fast on a stud-shaft 103, journaled in a bearing 104 in the frame. Each of the stud-shafts has a gear 105 Y thereon which is meshed by a gear 106 fast on a cross-shaft 107 journaled in bearings 80 108 in the main frame. The cross-shaft 107 is driven from the gear 32 fast on the shaft 30 of the transferrer, which meshes with a gear 110 journaled on a stud 111. rlhe gear 110 meshes with a gear 114 on a stud 115 g5 located in a bearing 116 of the main frame, the gear 114 meshing with one of the gears 106.

Each of the sprocket-wheels 98 is fast on a stud 117 Vjournaled in a 4'slide-bearing 9e 118. Each of the slide-bearings is slidable lengthwise of a guide 119 and adjustable therein by means of a set-screw 120 locked in adjusted position by a jam-nut 121, the bearing being clamped in adjusted position by a set-screw 122 received yagainst said bearing through the wall of said guide. This adjustment is provided for properly stretching the sprocket-chains.

Preferably each ofthe .sprocket-chains has one of its links provided with a pin123 on which there is a roll 124. Preferably each of the side-frames of the carriage has a guide 125, whichV extends crosswise of the stretches of the sprocket-chain, with which the roll 124 cooperates. The stretches of the sprocket-chain have movement respectively in the directions of the arrows cz and 'Z9 (Fig. 4), and the carriage is moved in said respective directions by said pin, de- 11o pendent onthe stretch in which said Vpin is located at the time. The pin also moves about the outer portions of the sprocketwheels at the respective ends of the sprocketchain loop. When the pin passes about a sprocket-wheel the speed of linear movef ment of the carriage is retarded, the retardation beginning when the pin arrives in the vertical plane of the axis of rotation ofjthe sprocket-wheel, the carriage coming to a stop'when the pin arrives in the horizontal plane'of the axis -of rotation, the carriage then beginning its return travel with an accelerating movement while the pin is again moving toward the vertical plane of the 125 axis of rotation of the sprocket-wheel. This construction permits the reciprocating movement of the carriage to be broughtvto a gradual stop when the forward edge of the sheet arrives at delivery position, for in- 'stance adjacent to stops 126 adjustably positioned crosswise of the machine along a rod 127 secured to :the main frame, thereby avoiding a nicking or -damaging of the forward edge of the sheet so as to present a perfect edge to ,the feeding devices in subsequent printings of the sheet.

The construction further permits a return movement of the carriage to -be initiated with a gradually accelerating speed, sothat the speed of contact between the rear edge of the sheet and the stripper devices may -be regulated for effecting a stripping of the sheet oli ofthe delivery-support without injury to the sheet.

lf desired, the arrest of the sheet-delivery carriage .may be further cushioned by buers at the ,respective corners of said sheet-delivery carriage, rshown accomplished by means of pistons 128 secured to the .respective corners of the sheet-delivery carriage, coperating with cylinders 129 suitably secured `to rigid parts of the frame of the .machinethe cylinders being provided with inlet-valves 130.

The stripper mechanism comprises stripper-lingers 186 having sheet-contact portions 137. The stripper-.fingers are secured to blocks 13S positioned at suitable points crosswise of the machine along a rock-shaft 139, being secured at suitable points lengthwise of said rock-shaft by set-screw 140. The rock-shaft is journaled in bearings 141 on blocks 142 having threaded engagement with screw-rods 143 journaled in bearings 1411, 145, of the main frame. The screwrods are shown as operable in unison by `being provided with bevel-pinions 146 with which bevel-pinions 1417 fast on a cross-shaft 148 mesh, the cross-shaft being journaled in bearings 1f19ofthe main `frame and .operable through suitable means, as a crankhandle 150.

In order to rock `the stripper fingers 136 1 provide an arm 153 rigidly secured tothe rock-shaft 139. This arm is movable with the rock-shaft in the adjustments of the latter lengthwise of the direction of movement of the sheet being delivered, and rhas means coperatingtherewith for roel-:ing the same, these means maintaining theiroperative relations .for rocking the rock-shaft throughout the adjustments of the latter. In the form shown the arm 153 has a pin 151 extending therefrom on which there is a roll 155. This roll coperates with the walls of a slot 156 extending lengthwise of a bar 157. The `bar is articulated at 158, 159, to arms 160, 161, articulated at 162, 163, to uprights 164, 165, rigid with the main frame. A pin 168 extends from the bar 157.

This pin is received in a slot 170 on a lever 171, pivoted on a stud 172 to themain frame, and having ,a roll 173 at its other end which is contacted byl a cam 174 secured Vto and rotating with a `gear 175. This gear rotates on a stud 176 extending' from the main frame, and is meshed by a gear 177 fast on the shaft 30 of vthe sheet transferrer, for insuring proper timing k.of operation of the strippers with relation to the time of delivery .of the sheet by the transferrer.

lhen the high point of the cam strikes the roll 17 3, the bar 157 is raised for raising the pin 1541 which is in the slot 156, irrespective of the position of the blocks 1:12 lengthwise ofthe machine, this pin being moved lengthwise in said slot by the mere adjustment of said blocks. The raising of the bar 157 raises the sheet-contact parts of the stripper-fingers for permitting the sheet to pass the same in the sheet-delivery moreinent ofthe carriage S1.

The slot 156 extends substantially throughout the full range of adjustment of said blocks, so that the rock-shaft 139 will be operated for operating the stripper-fingers irrespective of `the .position of said blocks 14:2. The bar 157 is ,maintained parallel by the connection of the arms 160, 161, therewith. When the high point of the cam passes the roll J173, .the bar 157 will be lowered, which 4may `b'efinfluenced by means of a spring 17 8, the ends of which are secured respectively tothe lever 171 and a suitable point on the frame. The sheet-contact portions 137 of the stripper-lingers are thereby brought into range with the sheet and preferably extend at'right anglesyto the plane of said sheet.

The partsare preferably so adjusted that,

4when the sheet is located at its limit of delivery movement, the said sheet-contact portions of said stripper-lingers are preferably slightly distanced from the rear edge of said sheet, so that, upon the return move- .ment of the delivery-sticks, the rear edgeof the sheet will contact said stripper-ngers with a slight blow, the force of which is g'aged by the distance of said contact-portions of said stripper-fingers from said rear edge of said sheet and the accelerating movement imparted to the sheet by the Asprocketchain and pin and guide connection with the carriage. The sheet preferably lies upon the delivery-sticks in sagging form between the delivery-sticks for giving additional rigidity to the sheet across its width. Upon retraction of the delivery-sticks, the sheet drops into a suitable receptacle 179, provided with suitable jogging mechanism, not shown because well known.

The stripper-fingers are shown of angular form and are also adjustable about the axis of the roclcshaft to permit any one or more of the fingers to be swung around the shaft into inoperative position and for insuring that the sheet-contacting portions 137 of the stripper-fingers shall have the proper angu` larity with relation to the plane of the sheet.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:v

l. In sheet delivery mechanism of the character described, the combination of a sheet-transferrer, a reciprocating sheet-receiving device, and a stripper mechanism forthe latter comprising stripper-fingers, a support for said stripper-ngers and means for adjusting said support toward and from said sheet-transferrer comprising an articulated connection the parts 'whereof have relative adjustment between them during said first-named adjustment and are maintained in operative relation for operating said stripper-fingers during said adjustment.

2. In sheet delivery mechanism of the character described, the combination of a sheet-transferrer, a reciprocating sheet-receiving device, stripper mechanism comprising stripper-lingers, and means for operating said reciprocating sheet-receiving device and stripper mechanism having driven 'connection with saidV sheet-transferrer, said means comprising an articulated connection and adjust-ing means for adjusting the operative relations in said articulated connection while maintaining the operative connections in said stripper-mechanism for operating said stripper-fingers.

3. In sheet delivery mechanism of vthe character described, the combination of a sheet-receiving device, a stripper mechanism therefor comprising` a stripper-part, adjusting means for adjusting said stripper-part lengthwise of the path of the sheet and maintaining said stripper-pari; in adjusted positions during adjustment, and means for operating said stripper-part comprising a shiftable part shifted by said adjusting means and a coperating part therefor maintained in operative relation with said shiftable part while adjusting said shiftable art.

P 4. In sheet delivery mechanism of the character described, the combination of a sheet-receiving device, a stripper mechanism therefor comprising a stripper-part, means for adjusting said stripper-part lengthwise of the path of the sheet with relation to said sheet-receiving device, and means for operating said stripper-part comprising an adjustable articulated connection having operative connection with said last-named adj usting means for moving said stripper-part while adjusting said stripper-part.

5. In, sheet delivery mechanism of the character described, the combination of a sheet-receiving device, a stripper mechanism therefor comprising a stripper-part, means for adjusting said stripper-part lengthwise of the path of the sheet, and means for operating said stripper-part comprising a bar, means for moving said bar laterally and means for maintaining said bar in parallel positions throughout its movements, said bar Y having operative articulated connectionwitb said stripper-part for moving the same while Vadjusting said stripper-part.

6. In sheet delivery mechanism of the character described, the combination of a sheet-receiving device, a stripper-part therefor, a movable member for said stripperpart, means for adjusting said movable member lengthwise of the direction of travel of the sheet, an operating bar, means for transversely operating said operating bar, means for maintaining said operating -bar parallel in various positions, and an operative articulated connection between said operating bar and said movable member the parts whereof have adjustment therebetween by said first-named adjusting means while being maintained in continuous operative condition whileV adjusting said movable member.V

7. In sheet delivery mechanism of the character described, the combination of a sheet-receiving device, a stripper-part therefor, a rocking member on which said stripper-part is mounted, means for adjusting said rocking member lengthwise ofthe path of travel of the sheets, an arm for rocking said rocking member, an operating bar'with which said arm has articulated operative connection at the various positions of adjustment of said rocking member and while adjusting said rocking member for operating said rocking member, and means for rtransverse reciprocation of said operating bar for rocking said rocking member in the various adjusted positions of the latter and .while adjusting the same.

8. In sheet vdelivery mechanism of the character described, the combination of a reciprocating sheet-receiving device, an endless flexible propelling means arranged in a pair of oppositely moving stretches and a pair of rounded directing parts about which said flexible propelling means is received loopwise at the ends of said stretches, coacting means between said flexible propelling means and yreciprocating sheet-receiving device for imparting alternate retarding and accelerating movements to said sheet-receiving device at the limits of reciprocating movements of the latter, stripper-fingers coacting with said sheet-receiving device for stripping the sheets therefrom, and means for Vadjusting said stripper-fingers lengthwise of the path of travel of the sheet for adjusting said stripper-fingers toward and from the rear edges of the Vsheets for determining the distance of the sheet-contact portions of said stripper-fingers from said rear' edges of said sheets and the speed of said sheets upon contact thereof with said sheet-contact portions of said stripper-fingers.

9. In sheet delivery mechanism of the character described, the combination with a sheet-receiving device, of a stripper mechanism therefor' comprising stripper-lingers, a rock-shaft for said fingers, adjustable blocks in which said rock-shaft is j ournaled, screw-rods having threaded engagement with said blocks, turning means for said screw-rods for adjusting said blocks lengthwise of the path of travel of the sheet, and means having operative connection with said rock-shaft throughout its positions of adjustment for rocking the same.

10. In sheet delivery mechanism of the character described, the combination with a sheet-receiving device, of a stripper mechanism therefor comprising stripper-fingers, a rock-shaft for said fingers, adjustable blocks in which said rock-shaft is journaled, screw-rods havii'lg threaded engagement with said blocks, turning` means for said screw-rods for adjusting said blocks lengthwise of the path of travel of the sheet, and means having operative connection with said rock-shaft throughout its positions of adjustment for rocking the same, comprising an arm secured to said rock-shaft, a bar extending lengthwise of said path, means for maintaining said bar parallel in its various positions, operative connection between `said arm and bar maintained throughout the posit-ions of adjustment of said rockshaft, and a lever for moving said bar transversely and thereby rocking said arm and rock-shaft. j

11., In sheet delivery mechanism of the opies of this patent may be obtained for character described, the combination with a sheet-receiving device, of a stripper mechanism therefor comprising stripper-ngers, a rock-shaft for said stripper-fingers, adjustable blocks in which said rock-shaft is jour-- naled, screw-rods having threaded engagement with said blocks, turning means for said screw-rods for adjusting said blocks lengthwise of the path of travel of the sheet, and means having operative connection with said rock-shaft throughout its positions of adjustment for rocking the same comprising an arm secured to said rock-shaft, a bar eX- tending lengthwise of said path, means for maintaining said bar parallel in its various positions, and means for moving said bar into said various positions having operative connection with said transferrer.

l2. In sheet delivery mechanism of the character described, the combination of a sheet-transferrer, a sheet-receiving device, a stripper mechanism for the latter comprising stripper-lingers, a rocking member therefor, means for adjusting said rocking member toward and from said sheet-transferrer, and means for operating said rocking member having operative connection with said transferrer and operative connection with said rocking member for rocking the same in its various positions of adjustment and while said rocking member is being adjusted.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

FREDERICK H. BEROLD.

Witnesses:

OTTO A. GOETZEL, G. S. HAWKE.

five cents each, by addressing the Commissioner of Patents, Washington, D. C.

Images