US1041807A - Sheet-feeding machine. - Google Patents

Description

H. K. KING. SHEET FEEDING MACHINE. v APPLICATION FILED MAR.31, 1909.

Patented Oct. 22, 1912.

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H. 1:. KING; SHEET FEEDING MACHINE. APPLICATION FILED MAR. 31, 1909. 1,041,307, v Patented 0011.22, 1912.

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I Patented Oct. 22, 1912.

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Patented 0ctj22,1912.

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H. K. KING. I SHEET FEEDING MACHINE. v

APPLICATION FILED MAR. 31, 1909. 1,041,801 Patented Oct. 22, 1912.

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H. K. KING. SHEET FEEDING MACHINE. APPLIOATION FILED MAR.31, 1909.

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APPLICATION FILED MAR.31, 1909. 1,041,807. Patented Oct. 22,1912.

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Patented Oct. 22, 1912.

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Patented Oct. 22, 1912.

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cally operated means .My invention also comprises a sheet de-' orrion.

noWAnn K. KING, or PHILADELPHIA, rENNsYLvANIA, AssIeNon TO cnaivisnnsnno'rnnns COMPANY, A CORPORATION or PENNSYLVANIA SHEET-FEEDING MACHINE.

Specification of Letters Patent. IJtgntgfl 0 1;. 22 1912 Application f led March -3 1, 1909. Serial No. 488,934.

To all whom "it mayconcern:

Be it known that I, citizen of the United States, residing at Philadelphia, in the-county of Philadelphia, State of Pennsylvania, have invented a new and useful ShcetsFeeding Machine, of which the following is a specification.

My invention relates to sheet feeding machines, and is especially adapted forfee ding sheets to a printing press.

My invention belongs to are used and includes means for operating the combing wheels by air pressure, and means for securing a range of varying pressure for said combing wheel actuation.

My invention comprises improved sheet detectors and trips controlling pneumatifor the control of the combing wheel 5161113111011.

My invention also comprises improved tail clamps pneumatically operated, and blowers connected therewith.

' My invention also comprises means for securing a relative increase or decrease of volume of air blowing between the sheets corresponding; to an increase or decrease of pneumatic pressure on the combing wheels to meet the requirements as to the nature of the sheets operated upon.

My invention also comprises improved means for adjusting the pressure on the drag weight for reducing the variationof feed due tothe difference in resistance between hard and soft spots in the sheets.

The present invention also comprises an improved pneumatic'valve, and triggercontrolling the same, operated in connection with the drop roller shaft for the pneumatic control of the combing wheel, latching device for the drop roller and thetail clamps.

tector adjacent the drop and feed roller condevice for controlling trolling a pneumatic controls the drop a latch which in turn roller shaft actuation.

My invention also includes pneumatically operated detectors Referring to the drawings:-Figure 1. is.

HOWARD K. KING, a

for indicating the correct position of the sheet against the feeding the class of sheet v feed1ng 1naclnnes in which combing wheels a plan view of my device. Fig. 2 is a sectlon on line 2-2 of Fig. 6 on 'an enlarged scale. Fig. 3 is a side elevation of mv device. Fig.4 is a detail of the latch of the i start and stop lever and associated mech.

nism, on an enlarged scale. Fig. is a detail of the start and stop lever and asso- .ciated mechanism, the lever in the position .tov prevent feeder from feeding.

1s a front elevation of the feeder removed from the printing press. Fig. 7 is a plan Fig. 6

of the apron showing a part of the feeder. Fig. 8 is a plan view of the driving connection to the press. Fig. 9 is a side elcvat10ll OIE- same. Fig. 10 is a section on line 12-12 of Fig. 1 on an enlarged scale. 11 is a section on line 1318 of Fig. 1 on an enlarged scale. Fig. 12 is a detail of the latching devicefor the drop roller. the one on the right hand side of the feeder. Fig. 13 is a section on line 15 -15 of Fig. 1 on an enlarged scale showing one of the comb mg wheel heads. Fig. 14 is a section through one of the combing wheel diaphragms. 15 is a section'of the upper part of the feeder on line 1717 of Fig. 1 on an enlarged scale. Fig. 16 is'a section on line 1818 of Fig. 10 on an enlarged scale. Fig-17 is a section on line 19 19 of Fig. 16 on an enlarged scale. Fig. is a plan of thetension shoe and weight. Fig. 19 is a side elevation of same, being a section on is a plan of the valve and cam operating side guide, tail grippers. trips. etc. Fig. 21 is a section on lm'e 2323 of Fig. 20 on an en-. larged scale. Fig. 22 is a section on line 24-24 of Fig. 1 on an enlarged scale. Fig. 23 is a plan of .one of the air valves controlling the combing wheels. front elevation of the same. Fig. 25 is a section on line 27-27 of Fig. 24. Fig. 26 is a section on line 28 28 of Fig. 25. Fig. 27 is a section on line 29 29 of Fig. Fig. 28' is a similar view to that shown in Fig. 25, of the valve with the valve piston and trip in a difierent position. Fig. 29 is a similar view with'the trip in a stillv different position. Fig. 30 is a similar view showing the trip in a still dilferent position. Fig. 31 is a front elevation of the feeder sheet line 35-35 of F 31. Fig. 34. is a' section line 21-21- of Fig. 1. Fig. 20

Fig. 24 is 011 line 3636 of Fig. 33. Fig.35 is a sect-ion through the start and stop valve and associated mechanism, the sectlon line being on the line 37-37 of Fig.4. Fig. 36

is a section on line 38-38 of Fig. 35. Fig. 37 is a section on line 39-39 of Fig. Fig. 38 is a section on line 40 t0 of Fig. 36. Fig. 39 is a horizontal section on line 47 47 of Fig. 40. 40 is a vertical section on line et8-48 of Fig. 39. Fig. 41 is a vertical cross section on line 49 49 of Fig. -10. Fig. 42 is a longitudinal vertical section of the right hand frame, the lower part of the apron looking from the outside. Fig. 43 is a longitudinal vertical section of the left hand frame. Fig. 14 is a vertical section through the press cylinder showing a side elevation of the. press feeding guides with the sheet detector attached. Fig. 45 is a similar view with the parts-in different positions- Fig. 46 is an enlarged side elevation in part section of one of the feed guides and detectors. Fig. &7 is a similar view with a detector finger in adiiferent position. -.Fig. 48 is a-vertical cross-section on. line 5656 :of Fig. .461 Fig. 19 is a cross-section on line 557 -57 of Fig.48. Fig. 50 is a section of the side guide on line 58-58 of Fig. 63. Fig. 51 is a similar-view with the parts in different positions. Fig:

. 52 is aside elevation of the press trips and stop mechanism, the operating diaphragm being in section. Fig. 53 is a section of the air cock. Fig. 54 is a similar view with the valve in a dift'erent'position. Fig. 55 Sheet 15) is a: section on line 66-66 on Fig. 7 on an enlarged scale. Fig. 56 is a section on line 6767 of Fig. 33, on anenlarged scale. Fig. 57 is an enlarged section of. the nozzle 209 shown in Fig. Fig. 58 is a section on line 69-69 of 15. Fig. .59 is a section on line 7070 of Fig. 50. Fig. 60 is a section on'line 71--71 of Fig. Fig. 61 isv a section on line 72-72 of Fig. 51. Fig. 62 is a section on-line' 7 373 of Fig. 15. Fig-63 is a plan view of the structure shown in Fig. 50. Fig. 64 is an enlarged, partial crosssection line 48,

of Fig. 39., j Similar numeralsrefer to similar parts throughout the several views.

Referring to Figs. 1 and 3, .the pile ofshcets to be fed is indicated by 75. lhese are combed forward in the usual way by thecombing wheel 76 such as is clearly shown in Fig. '13. A detailed description of the adjustment,- operation and control of the,

I combing wheel will be given later on.

Tail clamping weight.To the rear of the pile of sheets are'secu-red two tail clamping weights 77 shown clearly'in detail in Fig. 22. These weights serve as gravity clamps and are pneumatically operated against gravity to cause their release from the pile. The

pneumatic element of the clampis called the edge of the pile.

- that more pressure must be applied to comb- Blow pipes-Operating in connection with these gravity clamps are blowing pipes 78, 79 and 80, blowing into the back of the pile of sheets, there being three nozzles 81,

'82 and 83 on each head-two of them blowing into the top of the pile, part of the air usually. blowing just over the pile, the object being to blow under the-sheets that are i already combed forward. However the heights of-these nozzles are adjustable and can be set as desired. The third'nozzle 83 is provided with a foot which rests on the; 8i*

pile just forward to the back edge. It is held in position by the rubber tube 89 through which the air passes. This tub-eforms a. flei 'ible' connectionypermitting the nozzle to accommodate itself to the varying height of the ,pile, at the same tinie holding it in a iiired positionreiative to the back The air from this nozzle only strikes between the sheets that are o'oinbed beyond the edge of it, the object lie- 99 ing to have the top sheets thoroughly winded toinsure perfect separation of all the sheets.

[)mg-wez'qht.-The drag-weight 84: is connected with the shoe 85which is adapted to engage the pile of sheets at substantially the middle of the rear edge thereof. This pressure shoe is pivoted at 86, see Fig. 19, to the arm 87 which is adjustably secured to the threaded rod 88 by the thumb-screw S9.

This rod 88 is secured at its other end.to

the arm or bracket 90, pivotally supported on the shaft 91. threaded engagement with rod 88, so that by The weight 84 has a turning, the weight can be moved forward 5 and back along the shaft to secu're the desired adjustment of pressureexerted by the shoe 85. In fact it can be moved sufiiciently toward the bracket 90 to relieve all pressure from said shoe 85. The shoe 85 itself, in

viewof the position of pivot 86, is arranged to bearthe hardest at the extreme back of the pile and gradually less on the sheets that are 'combed into more advanced position. A

drag-tension is of the utmost importance in combing wheel feeders. If a given pile of sheets would comb uniformly throughout, there would not be any need for sucha de vice, but the pile does not run uniform, frequently far from it-,. there being hard and '1 soft spots. A hard spot may take more than double the combing force required for a soft spot. It is understood ing wheels when working with the dragweight. To illustrate the advantage of the use of the drag-weight, suppose that, without a drag-weight, the difference in resistance between hard and soft spots to be in a ratio of two to one; with the action of the dragchange the pressure on the combing wheels, while .the three to two variation would be taken care of itself without attention from the operator. Considerable variation in the length of these steps can be tolerated. Butwhen the steps are too long the feeder will 7 miss feeding. because the sheet fails to reach the required position in time.v When the steps are too short, two sheets will be brought into the sheet detector, thereby causing the press and feeder to stop.

Air pressure.The air pressure vfor operating the various pneumatic devices is provided by the motor driven blower 92, the

electric motor being indicated by 93; it being understood that the motor 93 runs independently of the driving of the press and is run practically all the time, that is, it

should start in advance of the press and run all the time the press is in operation. The blower 92 delivers to the reservoirs contained in the hollow beam 94:. These reser-' -voirs are indicated in Fig. 2,95 being high The pressure and. 96 being low pressure. blower delivers to the high pressure reservoir 95 through the hollow conducting bracke-t97. The regulating valve connected between the high pressure and low pressure reservoirs is indicated at 98 and serves to in the low pressure reservoir a supply of air pressure sufficientfor the several pneumatic devices connected therewith.

Low pressure reer-v0ir.-This low pressure rescrvjoir is provided with a valve' 101 similarly controlled by a spring actuated diaphragm 102- which gmaintains a constant pressure in said reservoir 96, any excess be ing permitted to escape to atmosphere through said valve. This valve mechanism is clearly shown in detail in Fig.- 11, in which the piston 1.03 is connected with the piston rod 104:, which is controlled by the "spiralspring105; the desired tension of between the sleeve 106. and the surrounding casing 107, ther-s being antifrictio-n bearings 108 between: the head of the casing'107 and the cap 109, said casing 107 is provided with,

which is secuited by the threaded adjustment the hand wheelllO for manual.operation; The casing 107 isprovided with a pin 111 having projecting ends, one end adapted to encounter stop 112 at the limit of the adjustable movement in one direction of said casing 107 ,the other end adapted to encounter stop 113 at the limit of adjustable movement in the other direction; stops 112 and113are secured on collars held rigid on sleeve 106. The purpose of these stops detectors, side guides and the diaphragm to stop the feeder and to stop the press. This high pressure must always be in excess of the highest pressure usedin the low pressure reservoir.

. The low pressure is used for the pneumatic operation of the combing wheels, the tail'elamps, and the blowing nozzles for winding the sheets. This low pressure reservoir is maintained at any required pressure by the adjustment of the tension of the spring 105 on the valve piston 104, see Fig. 11,. by simply turning the hand wheel 110 as hereinbefore described. The air pressure operating the combing wheels can be varied in this way. The lightest pressure that has been used in this device is about 9/16 pounds per square inch, andthe heaviest 'about'l pounds; the resulting pressure on the. wheels varying from two to twelve pounds, on each'wheel. This is supposed to give suflicient, range to suit the diflerent size o-fsheets and ditterent kinds of paper used on an ordinary printing press.

High pressure reserooz'r.-The high pressure reservoir or chamber 95, receiving the compressed air direct fromthe blower, carries a pressure of about 2 pounds per square inch; all sheet detectors and trips are connected to this press'ure. The valve controlling this pressure permits the surplus air to flow into the'low pressure chamber 96, forming the combing wheel supply reservoir. The valve controlling the combing wheel pressure allows a surplus of air to escape to the atmosphere. Itwill be understood that the blower atall times furnishes a surplus of air. This blower must be run independently of the press, and must be started in advance of the press and must never stop while the press, is in motion. By the mechanism above described, it will be seen that by the simple turning of the hand wheel 110 the pressure exerted by the combing wheels and the amount of airblown between the sheets can be increased or diminished as the operator finds necessary for proper combing.

. Drive.-The

feeding machine is operatively connected with the printing press in the following manner. 114 is the driving shaft of the printing press, which in Fig. 9. .is' shown as driven by the motor1l5. The

driving shaft 114;g isf-provided with the 45 I wheel 147 which. is mounted on the stud 146 clamped therein by the clamp bolt 1-29. This permits of ready adjustment not only be- &

sprocket 116 which is connected through the chain 117 with the sprocket 118, said sprocket 118, driving shaft 119 which is provided with the bevel gear 120 which cooperates with the bevel 121 which is on shaft 122, which is connected through the uni-- v'ersal joints 123 and 124 with the bevel gears125 and 126. The shaft connected between the joints 123 and 124 is in two parts,

one part having a split sleeve 128 secured thereto, the other element being adjustably secured in said split sleeve and fastened or tween the press and the feeding apparatus,

[but also for securing the desired tension of.

the chain 117. The shaft 127 is incased in the hollow column 130, see Figs. 6 and 9. This shaft 127 is provided at its upper end with a gear 131 whichcooperates with the bevel gear 132 which is secured to the feed roller 138. At the opposite end of the'feed roller is secured. the pinion 134 which meshes with gear 135 which is on the cam shaft 136. Gear 182 also cooperates with the gear 137 on shaft 138 which carries the friction disk 139. which cooperates with the 'tually journaled on ball-bearings in the cas- 144 operated by the hand wheel 1-15, so that by turning the wheel 145. in one direction or the other, the friction wheel 140 may have a range of movement between the center and circumference of the friction dish 139 so that any required speed may be coinniunirated from the friction disk to said friction "Wheel 140, see Fig. 10.

C0mbz'ng whccZ.--Referring to Figs. 13

5. r and 15, the combing wheel 7 0 15 of the usual type and isfjournal ed on the stud 146. The combing wheel 76 is.carr1ed on the gear which is secured. to the rocking frame 148.

. The gear 147 coiiperates with the gear 149 secured on shaft- 150, which is journaled in the rocking frame 148. which is supported by the stationary casing-151. The bevel gear 152 cooperates with the bevel gear 153 on shaft 154 which is provided. at the upper end with bevel gear 155 whichcooperates with the bevel gear 156 on shaft 141, see

Fig. 10. The casing 151 is journaledon the inverted column 157 which is secured to the plate 158 which is slidably' connectedwith the beam 94 forming part of he stationary framework. The plate 158 also carries the pinion 159 operated by the hand wheel 160,

I said pinion adapted to cooperate with the rack 161 on beam 94;"the purpose of which is to movesaid plate and the structure supported thereby along the beam to any desiredposition.- The plate structure 158 also carries the bearing for bevel gear'156 which is feathered on shaft 141, so that-said bevel gear 156 will maintain the desired relative position with respect to its cooperating gear 155.

The movement of the combing wheel by means of the pinion 159 and rack 161 is for shifting the wheels laterally to the desired position with respect to thepile of sheets. The purpose of journaling casing 151 on the end of colunin'157is to permit a slight rotative movement in said casing 151 to change the direction of the comb. The

pinion 162 coiiperating with the sector gear 168 forming part of the column 157. The handle 164 is connected with the pinion 162 moving in a slbt 165 in the casing151. By means of the handle 164 and pinion 162 ccoperating with the sector gear 163 ample power is given for a very slight and even -mo-ven' ent of the casing 151 and amply secures all the adjustment in this respect that is necessary. The purpose of this adjustment is to change the direction of comb to overcome a tendency which sometimes develops inthe sheets not to comb straight. The casing 151 is made in two parts; the split surface of one-half is shown clearly in Fig. 10. Each shell is provided with four holes for bolts JGG and 167; the bolts in the three holes 166 are adapted to be clamped tightly to bring the opposing faces together; while the bolt in opening 167, the surface approximate this opening being relieved casing aroundthe journal of the column 157.

it will be understood that the combing wheel supported in the frame 148 has a rocking movementabout shaft 150z'said pneumatic head' 168 and the springs 1.69. The normal possible range of rocking movement is about two inches. W hen. however. there is a distinct difference in the height of the pile of sheets at one side from the height at the other side, it becomes necessary for one combing wheel to work at a lower level than is within the range ofits normal possi blc variation. For this purpose we secure a means for i-nanually lowering said combing wheel to meet this emergency as follows; the casing 151 is provided with the projection 17 0. see Figs. 13 and 15, having an arcshaped face. Secured ,to the face of the projection 17 (l by dovetail engagement is the bracket 171 -.having a cotiperating arc sur- ,face corresponding to the arc of projection 170 so that said bracket is capable of'b'eiug adjustably secured in different positions on ,the are surface of projection 170 by means of a clamp plate 172 forming an element of the dovetaihsec' Fig. 58. The-movement of the bracket on the uroection 170 is secured shifting is. accomplished. by means of the slightly, serves as a clamp bolt to pinch the- I movement being normally controlled by the

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