US1696705A - Convertible single or double rotary feeder - Google Patents

Description

Dec. 25, 1928.

L. K. ALDRICH CONVERTIBLE4 SINGLE OR DOUBLE ROTARY FEEDER I 6 Shows-'Sheet 1 Filed Oct. 14. 1927 w, wmf/fa@ L.. K. ALDRlcH CONVERTIBLE SINGLE OR DOUBLE ROTARY FEEDER Der. 25,1928. 1,696,705

Filed ot.14.192v Q 6 sheets-sheet 2 gmx/nio@ MM/Mam,

L. K. ALDRICH CONVERTIBLE SINGLE on DOUBLE 'ROTARY FEEDER Filed Oct.. 14. 1927 8 Sheets-Sheet 3 Dec. 25, 1928. 1,696,705

O SW1/sto@ Ji/imma, l

attain,

Dec. 25, 1928.

Filed Oct. 14. 1927 S'SheetS-Shet '4 aucun Dec; 25, 1928. 1,696,705

l.. K. ALDRlcH conm'rlm: SINGLE 0R DOUBLE ROTARYTFEEDER .Filed ot.14..1927 e-'lshegw-sheet 5 Dec. 25, 1928.

' L. K. ALDRlcH puvz'l'xfx'Bx-.ESINGLE on DOUBLE ROTARY ilznER -'6 Sheets-Sheet 6 Filed oct. 14, ,1927

abkwwu,

S14/vanto@ v. i WA Y wlmwwwi N w m n/ m Z m m a Huma/p,

Patented Dec. 25,1928.

UNITED STATES LESTER KYLE ALDRICH, OF SIDNEY, OHIO.

CONVERTIBLE SINGLE OR DOUBLE ROTARY FEEDER.

Application filed October 14, 1927. Serial No. 226,222.

The invention relates to a convertible single or double rotary feeder and is an improvement on the convertible oscillating rotary feeder forming the subject matter of patents numbered 1,664,960 and 1,664,961 granted to me April 3, 1928, which contain claims covering the various features of the machine disclosed but not claimed in the present application.

TheV object of the present invention is to improve the construction 0f the rotary feeding means disclosed in t-he aforesaid applications and to provide a simple, practical and comparatively inexpensive construction adapted to double the production of the rotary feeder when running smaller sheets by enabling two Asheets to be fed during each complete revolution of the suction nozzle.

A further object of the invention is to y provide simple, practical and eiicient-means for enabling the machine to be readily arranged for either vfeeding a single sheet during each complete revolution ofthe suction nozzle or two sheets during each revolution of the said nozzle.

With these and other objects in view, the invention consists in the construction and nevel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims Ahereto appended, it being understood that various changes in the form, proportion and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings y Figure 1 is a side elevation of a rotary feeder constructed in accordance with this invention.

Fig. 2 is a similar view showing the opposite side of the machine.

Fig. 3 is a plan view of the same.

Fig. 4 is an enlarged detail longitudinal sectional view of the upper portion ofthe machine, the single cam being arranged for operating the machine to feed a single sheet revolution of the same.

Fig. 6 is 4an enlargedplan view of a portion of the machine, the double cam being in y operative position.

Fig. 10 is a transverse sectional view ofthe same illustrating the arrangement of the L-shaped air ports and the T-shaped air ports.

Fig. 11 is a detail view of the closure plate for covering the lateral vent orifices of the T-shaped air ports. A

Fig. 12 is a detail view of one of the winding arms. i

In the accompanying drawings in which -is illustrated thepreferred embodimentl of the invention the convertible rotary feeder comprises in its construction a double pull off nozzle 1 consisting of a continuously rotated disk suitably fixed to a rotary shaft 2 journaled in suitable bearings and the sides of the frame 3 of the machine and provided at one portion of its periphery with an arcuate series of suction mouths 4t and atthe diametrically opposite portion of its periphery. with an arcuate series of suction mouths 4a for successively operating on the uppermost sheet 5 of a stack to pull the sheet off the stack and carry the same to a pull off roll 6 and rubber covered spools 7 arranged above the pull off roll 6 andV cooperating with the same to complete the feeding operation and carry the sheet into the machine with which theautomatic feeder is associated. The lsuction mouths 4 and 41a are arranged in two sets or series which are adapted to be successively operated during each revolution of the double suction nozzle when running smaller sheets and the suction mouths L1a as hereinafter fully explained areV adapted to be rendered inoperative tovpermit only the operation of thcsuction mouths et to feed a singlesheet from the stack during each revolution of the double suction nozzle when running on large sheets.l The suction mouths 1 are arranged at regular intervals and are connected by passagesY or ducts 8 and with lateral ports 9 which are adapted f to be brought successively into register with an outlet or aperture` of an air passage 10 of an air arm 11. The air ports are termed by the suction mouths, the passages or ducts 8 and the lateral ports 9 are approximately L-shaped.

The suction mouths ,tirare arranged at regular intervals and are connected by passages or ducts 8a with lateral ports 9qu which are adapted to be brought successively into register with the outlet or aperture of the air passage 10 of the air arm 1l. The suction mouths en are also provided at the in ner ends of the passages or ducts 8 with lateral outlets of vents 9b which are covered by a closure plate 9s when the suction mouths et are operated and the suction nozzle is actiupI as a double suction nozzle for feeding two sheets 'during each revolution of the nozzle. The closure plate 9 is pivotally and detachably secured to the suction nozzle by a screw 9 threaded into the suction nozzle and adapted to either pivotally or de* tachably secure the closure plate 9C in position for coveringY and closing' the lateral vents or outlets il". The closure plate 9' is zulapted to be firmly secured in position for closing the vents or outlets 9 and it is also adapted to be removed for exposing,l the vents or outlets 9b to the atmosphere to prevent. the operation of the suction mouths 4a. Then the closure plate 9C is in position it tirmly held therein by the clamping` screw 9d vand it will permit the opening and closing of the vents or outlets 9b without removing the closure plate form the suction nozzle. if desired, the closure plate may be entriely removed from the suction nozzle and any number ot' fastening devices may, of course, be employed for securing the closure plate in its closed position. lihen the closure plate is .in its closed position the pull ott' nozzle is adapted for feeding; two sheets during` each revolution and when the closure plate is removed to expose the vents or outlets 9 the suction nozzle is adapted for feeding a single sheet during` each complete revolution of the said nozzle.

The pull oill nozzle is also provided with a curv d slot 12 arranged concentric or in circular alignment with a series oit ports 9 and with a curved slot 12'LL arranged concentric or in circular alignment with the arcu ate series ofports 9 and the. said slots 12 and 12"1v are adapted to be brought successively into register with the outlet ot' the air passage 1 0 for destroying the vacuum during portions of the revolution ot the pull ott nozzle. 12 is spaced from the arcuate `series ot ports 9 and one end ot the curved slot 12"L is spaced from the arcuate series of ports 9 to pro` vide intervening imperforate surfaces 13' and 13j which are adapted to close or cover the outlet of the passage 10 during` a portion o each revolution of the pull oil' nozzle out the suction from the nozzle and One end olf the curved slot throw the tull suction on one or more winding arms 14e which tirst engage the uppermost sheet 5 of the stack and then leave the same and move the coge oi the sheet backwardly as illustrated in dotted lines in Fie. 4 ot the drawings to produce an undulation in the sheet for winding the same similar to the winding o'l' a sheet by hand to separate the sheet from the rest of the stack as ein plained in the. aforesaid applications. The winding' arms 14 are suitably mounted on a transverse pivot shait 15 journaled in suitable bearings in the sides of the frame 3 of the machine and carrying a cam actuated lever l5 and a valve operating arm 17. rEhe winding arm is approximately L-shaped and is secured at one end to the shaft 15 and is provided with a hollow tubular portion 18. The hollow tubular portion 18 forms a passage for the air downwardly and provides at its lower end a suction mouth which adapted to engage lthe uppermost sheet oit the same at the forward edge thereot` to lift and wind the same as before explained. The winding arm is interiorly threaded at the upper end of the passage 19 for the reception of a threaded nipple 2O which forms a hose connection.

rilhe cam actuated lever 1G which is located at one side of the machine adjacent to the traine is provided at its outer or cam engaging end with a roll 22 which is mounted on a suitable journal 23 consisting oi a bolthavingl a smooth portion to receive the roll and threaded portion to engage a. threaded opening; 1G in the cam actuated lever 16. The bolt which forms the journal 23 isprovided with a loclr nut 23 and is removable and reversible to enable the roll 22 to be arranged at either side of the cam actuated lever arm 16 to cooperate with either a single cam 24 or a double cam 24a. The cam actuated lever arm 16 is located opposite the space between the cams 24e and 24 and by reversing the roll 22 and changing the same from the outer side of the lever arm 16 to the inner side of the same the roll is carried from operative position with relation to the single cam 2e to its operative position with relation to the double cam 2st. l.When the machine is arranged for 'feeding a single sheet during;` each revolution. et the nozzle the roll 22 rests upon the cani 24 at the center of the top as clearly illustrated in Fig. t of the drawingyr and as the winding` arms 14 and the arms 16 and Il? are rigidly secured to the pivot shaft l5 by screws or other suitable fastening; devices there sutiicient weight to cause the roll to pr nrnily against the cam whereby the cam actuated llever arm will more in accordance with the The cam 2st is provided with a cutout portion 25 forming a cam face for actuating the arm 'i6 for lowering and raising the winding arms to carry most sheet thereof and wind the same.

the same to the stackk and yto lift the upper'- The remaining portion of the peripheral surface of the cam 24 is circular and maintains the winding arm in an elevated position while the pull off nozzle is operated to pull ott the sheet and carry the same to the pull off roll and rubber covered rolls. The double cam 24a is provided with two cutout portions or recesses a located at diametrically opposite portions of the double cam 24 and adapted to produce two operations of the cam actuated arm 16 for raising and lowering the winding arms and for operating the valve operating arms 17 twice during each revolution of the suction nozzle. The portions of the peripheral surface of the double caniis circular between the recesses 25 to 1 aintain the winding arms in an elevated position while the pull ott' nozzle is operated to pull off a sheet and carry the same to the pull off roll and the rubber covered spools.

The arm 17 which operates the air valve is located exteriorly of the frame of the machine at the opposite side of that at which the cam actuated lever arm 16 is arranged and is approximately L-shaped and extends dou nwardly from the pivot shaft 15 and longitudinally of the side of the machine to .ber 27.

a point adjacent an air valve 26 provided with a cutoff piston or movable valve mein- The air valve consists of a body provided wit-h a main longitudinal passage 28 and a smaller' longitudinal passage 29.V

The valve is preferably arranged in a vertical position as shown and the passages 28 and 29 are vertical. The lower end of the vertical longitudinal passage 28 is connected with a main suction hose by a nipple or hose connection 31 which is threaded into the lower end of the passage 28 and a suitable hose connection or nipple 82 is threaded into the upper end of the main longitudinal passage 28 for the attachment of a hose 33 which is connected with the suction nozzle 1 through the passage of the air arm 11. The smaller longitudinal passage 29 has threaded into its upper end a nipple or hose connection 34 which receives a hose 35 extending to one of the winding arms. The heeel-36 extends to the other winding arm and is connected by an L-shaped nipple or hose connector 37 which is threaded at one cndinto a transverse passage or bore 38 extending into the body of the afi-r valve from one face thereof and intersecting the longitudinal passages 28 and 29. The transverse air passage 38 communicates with the longitudinal passage 29 and also with the main longitudinal passage 28. vWhen the suction is on the winding arms through the transverse passage 38 the suction is cut off from the pull off nozzle by the imperforate surface` between the arcuate series of ports 9 and the curved slot 12 so that the entire suction will be on the winding arms. The operation is the same when either' the single cam or the double cam is used with kthe exception that there are two operations of the air valve during each revolution of the suction nozzle when the double lcam is in use. The suction as explained in the aforesaid applications may be made either heavy or light to suit the character of the stock being fed by the machine and is regulated by means of pepper box dials 89 and 40 each having a plurality of apertures 41 of different sizes adapted yto be brought into register respectively with transverse vent passages 42 and 43 extending from the exterior of the longitudinal passages 28 and 29. Each pepper box dial is mounted on a pivot 44 which passes through the central opening 45 in the perforated disk which has disposed on it a coiled spring 46 for pressing the disk against the body of the air valve. The body of the air valve is provided at the vents 42 and 43 with vsmooth flat circular faces 47 and 48 to cooperate with the pepper box dials.

The cut off piston or movable valve mem* ber 27 which is cylindrical is mounted in the lower portion of the bore or passage 29 and is movable from the position illustrated in full lines in Fig. 8 of the drawings to the dotted line 49 in said figure to close the passages leading to the winding arms for cutting off the vacuum from the winding arms to throw the full force of the vacuum into the hose extending from the main longitudinal passage of the air valve to the pullv ott nozzle. The cut off passage is reciprocated in the valve chamber passage 29 of the air valve by the arm 17.

` The air arm is provided with a smooth flat bearing surface to fit againstfthe pull .off nozzle and. this surface is formed by a wood bushing. 50 as explained in the said applications. The bushing 50 is mounted on a metal sleeve 51 carrying a nipple or hose connection 52 to which is connected the hose 33 extending from the nipple 32 of the air valve to the air arm. The sleeve 51 is provided with a stem 53 and. coiled spring l sisting of a port or opening 68 and a pivoted hand operated lev lr 69 pivoted intermediate of its ends on a pin or screw 7 0 andinain* tained in proper frictional contact with the valve body by a coiled spring 71. The valve lever 69 is adapted to be operated by hand for destroying,a and restoring the vacuum so that the feeding of the machine may he stopped and started .as required. The main suction hose 30 is connected with a rotary vacuum pump 72.

The stack of sheets is arranged upon a vertically movable table 79 constructed substantially the same as that shown in Patent No. 1,546,184 granted to me July lei, 1925 with the exception that the mechanism for elevating the table automatically is operated by an elevating` lever 8O fulcrumed intermediate of its ene` s at S1 and pivotally connected at one end with a vertically movable bar 82 of the ratchet mechanism and at its upper end with a link or connecting rod 89' with a wrist pin 9() ol a pulley 88 mounted on a Y shaft 2. The rotary suction tan 72 is driven by an electric motor 83 winch isV connected with a rotary suction pump hy a belt 8d and pulleys 85 and 8G but any other suitableV means may of course be employed tor transmitting` motion from the electric motor to the rot-ary suction lan which explained in the aforesaid patent discharges into a tank 87 for supplyine` the compressed air to be discharged upon the stack as fully explained in said patent.

Referring` to Fig. 4; of the drawings which shows the Winding arms down ready to pick up the sheet, when the cam is in this position the arm 1'? has caused the cut ono piston to descend and the vacuum is on the Winding' arms owing to the fact that the rotary suction disk or nozzle has rotated beyond the end of the curved slot 12 and thel importorate or dead surface 13 closes the outlet or port of the Wood bushing. As the Windingarms lift the sheet and Wind it the cut oila valve closes cutting' oil2 the suction 'from the Winding arm and transmitting` it to the rotary suction nozzle, as the iirst port has rotated into register With the port or outlet ot' the Wood bushing and the sheet is noiv pulled off the pile by the rotary movement of the suction disk or nozzle and asuccessive engagement of the suction mouths with the sheets. As the suction disk or nozzle continues to rotate the cruved slot comes int-o register vwith the port or opening in the Wood bushing, thereby destroying the vacuum on the air valve and the suction nozzle Y and the Winding arms. This.operation tal as place once when the single cam ai. u d for actuating the arms 1G and when c double cam .is arranged tor oprating the cam actilated arm 'l suction nozzle or dis-l con' er" its rotary nient and the rotation olf the cam lovvr Winding arms and when they are their lowest point the curved slot i,

ing ant the vacuum is resored ready to pitv .I up the nent sheet. al/hen thevoouhle cam is 1n use the foregoing operations occur twice during cach complete revolution ot the rotary suction nozzle and When the single cam is in use the closure plate is arranged to uncover the vent ports of the suction mouths da to provide only one effectiveV set or series ot suction mouths.

lWhat is claimed is l. A rotary feeder including a continuously rotating pull oil suction nozzle pro vided at its periphery with two arcuate sets ot suction mouths having air ports, one set of suction mouths being provided With vent outlets, means tor covering and uncovering the outlets for feeding either one or tvv sheets during cach revolution ot the nozzle, and suction means with which th ir aorts are adapted to successively register.

2. i rotary feeder including a continu ously rotatingpull oli suction nozzle provided at its periphery with tvvo arcuate sets oit suction mouths havinglateral air ports located at one side ot the nozzle, one set ot suction mouths beingv also provided with vent outlets located at the other side of the nozzle, means 'for covering and uncovering` 'the vent outlets for 'feeding either one or two sheets dui ug each revolution of the nozzle, and suction means with which the air ports are adapted to successively register.

3. A rotary feeder includinga continuously rotatingpull off suction nozzle provided at its periphery with two arcuate sets of suction mouths having air ports, one set ot suction mouths being provided with vent outlets, a closure plate covering the vent outlets and movable therefrom to render one set ot suction mouths inoperative, and suction means with which the air ports are adapted to successively register.

el. A rotary feeder including a continu ously rotating pull oli' suction nozzle provided at its periphery with two arcuate sets of suction mouths having lateral air ports located at one side of the nozzle, one set o'l suction mouths being also provided With vent outlets located at the other side oit' the nozzle, a closure plate covering' the vent outlet-s and movable therefrom to render one ot' suotion mouths inoperative, and suction means with which the air ports are adapted to suc cessively register- I [i rotary 'feeder including' a cont-init ously rotatingpull olii' suction nozzle provided at its periphery with two :neunte oi? suction lmouths having air o sa one set oit suction mouths bcingr'provioed with vent means for coveii `ud uncovcriini die :lior ioeclinn'V e her o or tvfii sheets during each revolution of e nozzlea Adiction means with which the air ports are adapted to ,ively regist' oscillating means for picyla up a sheet trom a stack and delivering i to the pull oit" nozzle,

cams rotating with the -tion means with which the air ports are adapted to successively register, oscillating means for picking up a sheet from a stack and delivering it to the pull olf nozzle, single and double cams rotating with "the pull off nozzle, and cam actuated means connected with the said oscillating means and adapted to be engaged with either of 'the cams for operation by the same.

7. A rotary feeder including a continuously rotating pull off suction nozzle provided at its periphery with two arcuate sets of suction mouths having air ports, one set of suction mouths being provided with vent outlets, a closure plate covering the vent outlets and movable therefrom to render one set of suction mouths inoperative, suction means with which the air ports are adapted to successively register, oscillating means for picking up a sheet from a stack and delivering it to the pull oil' nozzle, single and double cams rotating with the pull off nozzle, and cam actuated means connected with the said oscillating means and adapted to be engaged with either of the cams for operation by the same.

8. A rotary feeder including a continuously rotating pull off suction nozzle provided at its periphery with two arcuate sets of suction mouths having lateral air ports located at one side of the nozzle, one set of suction mouths being also provided with vent outlets located at the other side of the nozzle, a closure plate covering the vent outlets and movable therefrom to render one set of suction mouths inoperative, suction means with which the air ports are adapted to successively register, oscillating means for picking up a sheet from a stack and delivering it to the pull of'f nozzle, single and double cams rotating with the pull oil nozzle, and cam actuated means connected with the said oscillating means and adapted to be engaged with either of the cams for operation by the same.

9. A rotary feeder including a continuously rotating suction nozzle provided at its periphery with two arcuate sets of suction mouths having air ports, one set of suction mouths being provided with vent outlets, means for covering and uncovering the vent outlets for feeding either one or two sheets during each revolution of the nozzle, suction means with which the air ports are adapted to successively register, oscillating means for picking' up a sheet from a stack and delivering it to the pull off nozzle, single and double cams rotating with the pull olf nozzle, and an oscillating arm connected With the said oscillating means and adapted to be engaged with either of the cams for operation thereby.

l0. A rotary feeder including a continuously rotating suction nozzle provided at its periphery with two arcuate sets of suction mouths having air ports, one set of suction mouths being provided with vent outlets, means for covering and uncovering the vent outlets for feeding either one or two sheets during each revolution of the nozzle, suction means with which the air ports are adapted to successively register, oscillating means for picking up a sheet from a stack and delivering it to the pull off nozzle,

single and double cams spaced apart and rotating with the pull off nozzle, and a cam actuated arm connected with the oscillating means and located at the space between the cams and ha ving reversible means adapted to be arranged to be engaged by either of the single or double cams.

ll. A rotary feeder including a continuously rotating suction nozzle provided at its periphery with two arcuate sets of suction mouths having air ports, one set of suction mouths being provided with vent outlets, means for covering and uncovering the ventoutlets for feeding either one or two 'sheets during each revolution of the nazzle,

suction means with which the air ports are adapted to successively register, oscillating means for picking up a sheet from a stack and delivering it to t-he pull ofi" nozzle, single and double cams spacedtapart and rotating with the pull oil' nozzle, a cam actuated arm connected with the oscillating means and located at the space between the said cams and provided with a reversible lateral projecting roll adapted to be arranged at either side of the arm for engaging with either of the cams.

12. A rotary feeder including a continuously rotating shaft, a pull olf suction nozzle mounted on and rotating with the shaft and provided at its periphery with two arcuate sets of suction mouths having air ports, one set of suction mouths being also provided with vent outlets, means for covering and uncovering the vent outlets, single and double cams spaced apart and mounted upon the said shaft and rotating with the pull olf nozzle, oscillating means for picking up a sheet from a stack and delivering it to the pull off nozzle, and an oscillating arm connected with the oscillating means and located at the space between the said cams and provided with a reversible laterally projecting roll adapted to be arranged to engage with either of the said cams.

13. A rotary feeder includinga continuously rotating shaft, a pull off suction noz zle mounted on the shaft and rotating therewith and provided at its periphery With two arcuate sets of suction mout-hs having air ports, one set of suction mouths being` also provided with ventl outlets, means for cov- @ring` the vent outlets, a double cam mounted on the said shaft and rotating with the suction nozzle, oscillating means for picking,` up a sheet `troni a stack and delivering` it to the pull ott nozzle, and means operated by the double cam for actuating` the said oscillating means.

14. A rotary feeder including a continuously rotating shaft, a pull otlf suction nozzle mounted on the sha-tt and rotating therewith and provided at its periphery with two ar cuate sets ot suction mouths having air ports, one set of suction mouths being also provided with vent outlets, means for covering the Vent outlets, a double cam mounted on the said shatt and rotating with the suction nozzle, oscillating` inea-ns for picking up a sheet from a stack and delivering it to the pull off nozzle, an of.-;ci'llating` arm connected with the said oscillating means and operated by the said double cam.

In testimony whereof l affix my signature.

LESTER KYLE ALDRICH.

Images