US2391381A - Feed control for lining machines - Google Patents

Description

Dec. 25, 1945. J. B-ELADA 2,391,381

FEED CONTROL FOR LINING MACHINES I Filed March 25, 1942 5 Sheets-Sheei 1 Hwuonib a Jhrr .Belada,

MUM/i034,

Dec. 25, 1945. J. BELADA I 2,391,381

FEED CONTROL FOR LINING MACHINES 7 Filed March 25, 1942 5 Sheets-Sheet 2 Z1 gnucnion 06in? .Belada,

Dec. 25, 1945. J. BELADA FEED CONTROL FOR LINING MACHINES 5 Sheets-Sheet 3 Filed March 25, 1942 Dec. 25, 1945 J. BELADA 2,391,381

FEED CONTROL FOR LINING MACHINES Filed March 25, 1942 5 sheets-sheet 4 mun mum device therefor.

Patented Dec. 25 1945 'T I FEED ooNrRoL'FoR DINING MACHINES :John BeIada, Glassb'oro, -N.5 .1.;assignor momm- Illinois Glass Uompany, a corpnration-of'ohio Application March 25, 1942],; Serial No.43'6','148

mm. (013113- 113) j- 'My.invention relates to machines for punching liners Ifrom strip stock and assembling them with caps or closures forcontainers. The machine in its preferred Qform comprises .means for Ifeeding the inverted caps in a row or rows toanlassemblingstation, vmeans Jforffeeding astrip .oiflining .mater'iahtosa'id station withith'e strip positioned .over the inverted caps, dies ineluding punches by which the liners .are'ipunched from the strip, .and means for assembling the liners with "the .caps. s. 1

I An object of l-thepresent. inventionis .toprovide fimproved means "by which the forward feed of thes'tockstrip o'f liner material .isprevented auto- .matically whenever a cap or caps are missing at the assembly station. More particularly, theinventioniprovides a'novel 'form vof lectrical con itrolmeans operable automatically to ,preventfthe .forwar'd .feedof the strip when a row of jcaps has been lexhaustedor whenever, (for any reason; a .c'apismissing at the 'assemblyistation.

' ppear here- Dther obj ectsof the invention will. matter. I i V ITReferring .to the accompanying drawings: 7 I Fig; llis .a. plan view of a the.,present1:invention.- p b 1Fif2isia.partesectional elevation of the mathine. j 1 Fig-I3 isa sectional plan views'ho'win'g a'port-iono'fthe cap'feedin'g and control mechanism. ITFig. 4= is a. section 'at the linef4- 4 on '3 'showingaseri'es of electric switches andtheir operating mechanism. p ili igl5 is a sectional elevation ofijtheiupperportion of the machine 'viewedi in a direction "at rightiangles to that of Fig. 2. v "FigIB is a sectional elevation .of meansforfeeding the stock strip and e'le'ctroma'gneticcontrol ..Fig. '7 is a:secti-0n at the line 1-1-1 onFi'gfG. -Fig. 8'is asectionfa't the line 8- 8 on Fig.26. v I Fig.-9.-is a-sectional elevation at the line 9- 9 on Fig.3, Jshowing means actuated by the inverted caps aslthey are'fed to the punchflp'ress, for control-ling-the"operation.of thestock strip. 1 I

Fig.10is a wiring diagram of the electrical'com trol mechanism. V

R.eferring particularly to Figs. 1 and 2, the -mechanism-is mounted/on a framework including a 'vertical frame 20, a lower. platform! I on which is =mountedan electric motor "22,.and .-an upper platform or-table 23. 'Ihe .caps C(Fig. 9) may be iediroma magazine to the assembling stationalong a chute el -runway including a hori- --zontal1y disposedportion overlying the, platform -2--3,said chute comprising parallel strips-'25 spaced tosprovi de individual runwaysl for. a. plurality of rows of oaps. V r g The liners for the caps are punchedltromstrip stoek-- 26-:of liner--material such as paper impregmachin'e embodying hated with para'flin or other material suited for the" intended purpose. The strip 26 is 'fed'for- .ward intermittentlystep by. step and passes between the upper and "lower die members '21 and 21a of .arbattery of dies individual to the rows of caps C. 'The upper .die members 2'! reciprocate vertically, each being in the form of a press plunger or punch by which liners are punched from the stock strip, and each including means for pushing the'liners into placewithin the inverted caps C therebeneath.

The strip 2% is fed forward by .a pair of feed ro11s'28' and-29 (Fig. 8) keyed respectively to shafts 30 and3l. The feed rolls are driven'by the motor '22 operating through a gear train including a pinion "32 onthemotor shaft driving a gear'33 keyed to a drive shaft -34 ,journalled in standards .35 on the machine frame. The shaft 34 has driving connection through a sprocket chaintfi with an upper Shaft 3ijournalled in hangars 38 dependingfrom the platform'23. An eccentric 39 (Figs.2 and 5) fixed to the shaft 31 operates through a connecting rod lfl to oscillate .a rockarm 4'lwhich'is mounted to swing about the axis of the shaft 3]! (Figs. 5, 6 and 8) A dog '42 on a pivot ,pin 43 on the arm 4l', cooperates with a, ratchet wheel 44 mounted on a sleeve 45 (Fig. '8) keyedon the shaft 3|. The ratchet wheel "44 is connected to a spur gear "47 by bolts 48 which extend through a collar '49 on the sleeve 45, the gear '41 being securedfor rotation with the shaft 3|. "The gear '41 meshes with a gear $.50 keyed to the shaft 30,, thereby providing a positive drive 'for'the rol1s'28 and29.

The dog 42' carries a roll 5| which runs on the curved surface 52 of an arm 53 connected by a pivot boltf54 to the machineframe. The arm'53 is adapted to berocked about its. pivot by a solenoid electromagnet '55 having an armature or core 56.to engaget'he under surface of said arm. While the magnet remains deenergized the arm 53 is-held in the .Fig. 6 positionby a compression spring5'i,- in which position the dog 4'? is held out of engagement with the ratchetwheel. When the electromagnet is energized, the arm is rocked thereby to effecta driving engagement ofthe dog and ,ratchet. During normal operation of the machine the electromagnet isperiodically energize'd as hereinafter described in timed relation tothe. rocking movements of the arm 4! so that .th ffe'e'drolls .28 and 29 are, rotated intermittently and advancethe stock strip "26 stepiby step.

The press plungers 21 are attached to the upper cross bar (Figs. 2 and 5) of a frame including posts 6! which are attached at their lower ends .to a cross-bar -iilbeneath the platform 23 .This frame is adapted to be reciprocated verticallyfor operating the plungers, the

.posts 61 extending throughandybe'ing slidablein bearing sleeves 63 on the platform. The reciprocating movement of the plungers is effected by means of a crank 64 on the shaft 31, connected through a link 65 to the cross-bar 62. The lower die members 21a (Figs. 2, 3 and 9) are mounted in a plate 01 overlying and bolted to the platform 23. lower surface recessed to provide a passageway 69 through which the liner strip 26 is fed into position between the die members. When the plungers descend and in cooperation with the die members 21a sever the disk liners from the stock strip, the liners are carried on down into the caps C which have-been positioned in register with the die members, and are tamped into place .by tamping rods 10. These rods extend through the tubular plungers 2'! and are connected at their upper ends to a tie-bar l l. A vertical guide bar 12 attached to the bar H is slidable in guideways 13 on a plate 14 attached to the frame member 60. An arm 75 is connected by a pivot pin I6 to the plate '14 and has an operating connection with the tamping rods through a slot and pin 11, the latter attached to the bar 12. The arm 75 carries a pin 18 movable up and down in a slot 19 formed in a standard 80. C'oil springs 8| are positioned between the cross bar 60 and the bar 7!. The'operation of the tamping rods is as follows: When the bar 60 and press plungers 21 are moved downward, the tamping rods are carried therewith until arrested by the stock strip 26. As the bar 60 continues its downward movement the arm 15 swings about its pivot.

The pin 18 reaches the bottom of the slot 19 about the time the punches reach the strip 26 and sever the liners, so that during the continued downward movement of the plungers 27 and bar 50, the arm 15 is swung about the pin 18 as a fulcrum. As the pivot pin '15 is much closer than the pin IT to the fulcrum pin 78, the arm 15 operates to move the tamping rods rapidly downward, thereby forcing the liners into position.

The means for feeding the caps C from the chute 2-5 into register with the dies includes a feeder in the form of a plate 82 (Fig. 2) mounted for reciprocating movement on the table 23, the latter being recessed to provide a guideway for the plate 32. The means for reciprocating said plate comprises driving connections from the shaft 31 including mitre gears 83 and 84 connected respectively to the shaft 31 and a shaft 85 journalled in a bearing bracket 86 and carrying a crank disk 87 connected through a link 88 to the feeder plate 82. Dogs 89 pivoted to the feeder plate are arranged to engage behind the caps C at the forward end of the chute 24 and push them forward into register with the dies. Each dog 89 is normally held with its nose 9| projecting into the path of the caps by a light leaf spring 92.

The electrical control mechanism for preventing the feeding movement/of the stock strip when a cap C is missing at the assembly station, as, for example, when a row of caps has been exhausted, will now be described. Electrical circuit control devices, individual to the cap feeder dogs 89, each includes a rocker bar 93 mounted in a channel-shaped holder 94 for swinging movement about a pivot 95, the holders 94 being mounted in channels provided therefor in the plate The forward ends of the rocker bars 93 extend downward'(Fig. 9) into the paths of the caps C, anad are normally held in such position by gravity supplemented by coil springs 90. The rear end of each rocker 93 extends beneath A plate 68 overlying the plate 61 has its" contact [02.

a. rod 91 mounted for vertical movement and held against the rocker by a coil spring 98. The rod 91 has a head 99 which contacts the lower surface of a switch arm in the form of a leaf pring I00. An electrical contact [0| adjustably mounted on the arm I00 cooperates with a stationary The switches are electrically connected in series by connectors [03 and I04 in a circuit including th magnet coil I05 (Fig. 10) of a relay I06. The circuit comprising the switches I00 may be supplied with current from any suitable source. When the switches are closed and a circuit thereby established for the relay magnetv I05, the latter operates to establish a circuit for the electromagnet 55, which circuit includes conductors I01 and I08 which may be connected to the mains of a commercial circuit.

As before described, the electromagnet 55 (Fig. 6) must be energized to permit the pawl and ratchet device to operate the feed rolls for the stock strip. This requires that all of the switches in the relay circuit be closed, which is done by the caps C (Fig. 9) engaging the rockers 93 as the caps are advanced by the dogs 89, As the forward ends of the rockers are swung upward by the caps, the rods 9'! are lowered, so that the switch arms I00 move downward and close the circuit. Coil springs I09 insure the closing movement of the switch arms. The closing of the relay circuit is timed to maintain the electromagnet energized during the strip stock feeding operation. If a cap C should be missing from one of the feed lines when the feeder plate 82 carrying the dogs is advanced, the corresponding rocker 93 would remain inoperative and the relay circuit would therefore remain open so that the stock strip 26 would not be fed forward. Each cap C is advanced beyond the assembly station by the next succeeding cap. In other words, each cap as it is pushed into line with the punch by the dog 89, pushes forward the preceding cap which has just received its liner. Consequently, if the supply of caps in any row runs out the last lined cap will remain in register with the plunger. Continued operation of the press plunger would then cause the liners to be piled up in the cap and eventually clog the machine. This is prevented by the electromagnetic mechanism operating as above described to prevent the continued feed of the stock strip.

Modifications may be resorted to within the spirit and scope of my invention.

I claim:

A lining machine comprising in combination,

feed rolls for feeding lining material to an assembly station, a motor, driving connections between'the motor and feed rolls including a dog and ratchet, means for holding the dog out of driving engagement with the ratchet, an electromagnet operable when energized to move the dog into engagement with the ratchet, a plurality of channels, means for advancing rows of closure devices through said channels to the assembly station, rocker bars individual to said channels and mounted to swing into and out of the paths of the closure devices in the channels, an electrical control circuit for the electromagnet, switches individual to said channels and connected in series in said circuit, and means actuated by said rocker bars for holding said switches open while the rocker bars are projected into the path of the closure devices and for closing said switches when the rocker bars are actuated by the closure devices.

JOHN BELADA.

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