US932678A

US932678A - Can lacquering or coating machine.

Info

Publication number: US932678A
Application number: US42710508A
Authority: US
Inventors: Charles S Bucklin
Original assignee: American Can Co
Current assignee: Primerica Inc
Priority date: 1908-04-15
Filing date: 1908-04-15
Publication date: 1909-08-31
Anticipated expiration: 1926-08-31

Description

G. S. BUGKLIN.

GAN LAGQUERING 0R coATING MACHINE.

APPLICATION FILED APR.15, 1908.

Patented Aug. 31, 1909.

5 SHBETS-SHBBT 2.

iwf/aj G. S. BUCKLIN. GAN LACQUERING 0R coATING MACHINE.

APPLIGATION FILED APB.. 15, 1908.

Patented Aug.31.1909.

5 SHEETS-SHEET 3.

s G. s. BUGKLIN. GAN 'JAGQUERING 0R COATING MACHINE.

APPLICATION FILED APR.15, 1908. f 932,678. Patented Aug. 31, 1909.

. 5 SHEETS-SHEET 4.

l0 m 2 Cv l G. S. BUGKLIN.

GAN LACQUERINGy 0R COATING MACHINE.

' H/MM., ,LMa @MCM UNITED STATES PATENT onirica cuantas s. Buc

' cui reconnaitre on con'rnm umm.

u Y Specification ot Patent. j Pgtented-Aug, 31, 1909.

appucaabnniedapriii5, 190s. serial No. 427,105.

To all whom it may concern:

Be it known that I, CHARLES S. BUGKLIN,

a citizen of the United States, residing in Baltimore, in the State of Maryland,'have invented' anew and useful vImprovement in Gan Lacquering or Coating Machines, of

which the following is a specification.

My invention relates to'improvements in machines `for lacquering or applying tol the interior surface of sheetmetal preserving cans a protective coating.

The object ofl my invention is to an automatic machinel by means of which sheet metal preservingcans may be rapidly e and cheaply'lacquered or lined on the inside -with apreservative coating.

My invention yconsists primarily in the combination `with a spraying device, of.

means for rotating the cans and bringing them successively into operative relation with the spraying device inside the can, a

feed device for thecans and a can drying mechanism and means for transferring or conveying the freshly coated cans from the coating mechanism to the drying device and keeping them under rotation while being so transferred or conveyed andwhile moving through the drying device so that the lac.-l quer .or coating will remain evenly distributed-over the entire interior surface vof the canl until it is dried and rendered hard and Ii-rmly adherent.

" longitudinal section of the spraying device, 'on the broken line 5.--5 of Fig. 6. Fig. 6

My invention iirther consists in the novel construction of parts and devices and in the novel combinationsof parts and devices.V

herein shown and described, and more particularly specified in the claims.

In the accompanying-drawing forming a part of this specification, Figure 1 is a plan view of a can lacquering or coating machine embodying my invention, a-portion of the drying `chamber being broken away, Fig. 2 is a side elevation. Fig. 3 is an end .elevation. Fig. 4 is an enlarged detail plan view of the spraying device. Fig. 5 is a detail is a cross sectionof the spraying device on line 6 6 of Fig. 5.v Fig. 7 is a detail elevation, partly in vertical section, showing the can feed device and other parts. Fig. 8 is,

a detail elevation, partly in vertical section on line 8--8 of F ig. 3. Fig. 9. is a de tail section on line 9-9 of Fig. 3. Fig. '.10 1s a provide L Vertical longitudinal section on the broken line 10f10 of Fg- 7.

.rotating and supporting the cans about th'ej ,Spray head conjunction -withthe opposing anti-,friction rollers 'f on the opposing or stationary head F1; v

` G is an ejector for the freshly coated or sprayed pans, H a drying chamber, K an inclinedvrun-way for transferring or conveying the cans by a rolling movement from the coating mechanism to the drying chamber and M the device for` automatically regulat- 4ing and controlling the amount of liquid Alacquer or coating material sprayed upon the interior lsur-'face of each can, N a supply tank for the liquid lacquer or coating material and P a pump for conveying the surplus lacquer or coating liquid from the overiiow chamber of the spray head back to the .Supply tank.

In the drawing, I have shown the preferred construction of each of the arts or devices formingpart Aof the machine embodying my invention.

The spray head B consists essentially of a liquid chamber 1;,'an air chamber b1 and a series of vertically disposed liquid nozzles or nipples b2 and a 'corresponding series of horizontally disposed and divergent air-blast nozzles 4b3, the liquid nozzles being preferably arranged in acurved row about as illus- .tra-,ted in the drawing. The liquid chamber b has an overflow partition b4 so that the liquid lacquer` or coating material may be um, or saumons, ummm, assicizon 'ro enmarcan can coureur, or New ironic, N. Y., A conroaa'non or itiiw maar.

maintained at a constant level in respect to l the lower lends of the liquid nozzles b2. The lower ends of the liquid nozzles are adjusted or arranged so that they project a. little below the level of the lacquer or coating liquid iii the liquid chamber b, and they are preferl ably so arranged, sis-illustrated in Fig. 5, that the liquid nozzles b-f at the middle portion of the series do not project quite so deep into the liquid as those at the end portions .of the scrles.- The liquid' chamber of the spray head is preferably formed by a semif cylindric casing b into which the liquid supply pipe b leads and which is furnished with an overflow pipe or passage b1 leading fromA the overflow chamber 58.

The air chamber b1 of the spray head preferably consists of a flat or rectangular casing in cross section, having a curved nozzle face b9 in which the air nozzles b3 are rigidly secured, the air chamber casing being itself removably secured by an angle clamp b1 to the liquid nozzle holder or plate 511 which is removably secured to the upwardly open section of the semi-cylindric liquid chamber casing b5. The nozzle holder 7111 is fur nished with a guide lip Z112 at its end, which 'ts in a suitable socket 513 in the casing b5 of the liquid chamber. The holder 511 is also provided at its outer end with a spring clamp 511 having a hole 515 engaging a pin or projection b1 on the end of the casing b5 to further lock the liquid. nozzle holder in place on the casing b5. y 1

The air chamber b1 of the spray head is connectedpreferably by a flexible air pipe 'Z211 with a suitable compressed air supply.

The main casing b5 is preferably soldered or` otherwise secured to an upright bracket or plate B1 which is removably secured to the stationary frame of the machine and which also receives and supports the outer ends of the can guide rods orsupports E E. The liquid lacquer or coating material overflowing from the liquid chamber b of-the spray head 'into the overflow compartment bs is returned to the supply tank N through the return pipes n by means of the pump P.

The can feed runway C is furnished preferably with side rails or guides C1 and inclined at such angle that the cans will roll automatically along the same by their own gravity.

The can feed device or feederD preferably consists of a vibrating arm pivoted to the them.

main frame at d, and'having a pair of stop arms or fingers ld1 d2, which alternately project up into the cam runway sufficiently to arrest the downward rolling movement of the cans, the feed arms being spaced apart suii-A cient-lv to receive only a single can between The feeder D is automatically operated at intervals as required, by means of a link d3 and cam lever d'1 operated by a suitable cam d on the cam shaft R.

The can way or supporting device E preferably consists of a pairv of rods or guides extending horizontally and arranged parallel to each other at a suitable distance apart to support the can 'X between them while permitting it to be readily pushed along these ide rods onto or into a position surroundmg the spray head B.

The means or device F for pushing the can-X onto the spray head and for rotating it, preferably consists of'a rotating and reciprocating can holder chuck or disk, preferably of-rubber or other yielding material adapted to exert a gripping action upon the end or head m of the can X. It is secured to or carried by a metal head f1 on the rotating and reciprocating shaft f2 which is furnished with a pulley' f3 for rotating it and connected with the shaft by a spline f4 so that the shaftmay reciprocate through the pulley, and provided with a grooved collar f5 for reciprocating it as required by engagement with the fork lever f which is operated by a cam f7 on the cam shaft R. The cam f7 preferably operates to reciprocate or move the lever f in the direction to retract the can transferring and rotating device F and its shaft f2 and the same are preferably moved in the opposite direction by means of a weight f8 and a iiexible connection f which passes over a pulley f1 and is connected to the head F2. To permit the can to freely rotate under action of the rotating can holder chuck F, the opposing stationary chuck F1 is furnished with a plurality of conical anti-friction rollers f and which engage the annular shoulder w1 of the can at the opposite end'from the rotating holder or chuck F. As the conical rollersf only tangentially engage the extreme annular shoulder or corner of the can, they will not smear or soil the end of the can to any appreciable extent with the sticky lacquer or coating material, although these can engaging conical rollers f may themselves become more or less coated with the lacquer by reason of their proximity to the spray head B.

After the spraying operation has been completed upon the can, the can is withdrawn from its position surrounding the spray head (so that it may be ejected or discharged from the can supports E) by means of a reciprocating head or slide F2, which preferably slides upon the can supporting rods E, and which engages the end of the can below the spray head B. This head or slide F2 is preferably reciprocated as required by a connecting link f11 extending between said slide F2 and the lever f by which the rotating can holder or chuck F is reciprocated.

The can ejector G which serves to eject or discharge the freshly sprayed or coated canfromvthe can su ports E and rotating can holderchuck F a ter said chuck is withdrawn, preferably consists of a curved arm or lever pivotally connected to the frame 'of the machine at g, and having a forked or widened end g1 for engagement with the can, and which lis operated intermittentlyr or at intervals as required, by means of a link g1, and a cam lever g operated by a cam g* on the cam shaft R.'

The drying chamber H preferably consists of a 4closed chamber preferably furnished with gas burners or other heaters h,

and a track or runway h1 along which the cans may be rolled continuously by means of an. endless conveyer k2, preferably a chain, the lower loop ofv which rests upon the cans. The can rotating chain or conveyer h2 is operated byl pulleys It, the shaft i* of one of which is furnished with a gear 71,5 which meshes with a gear!h1on`the shaft for operating itla7, which has a pulley las through a suitable 'driving The freshly coated cans X, after being operated upon by the spray head B and ejected from they can supporting rods or guides E E, are conveyed by a rolling movement into-the drier H, preferably by a connecting inclined runway K. v

The device M for automatically regulating and controlling the amountl of -liquid lacquer or coating material sprayed upon the interior surface of each can-in turnl as it is brought into operative relatioii .with the spray head and -rotated in respect thereto, preferably consists of a Avalve in the combelt 71.9.

pressed air supply pi e, which is momen.

tarily and automatica ly opened andclosed so that the blast of compressed air is projected through the`air nozzle b of the spray head forfvjust the required short period of time necessary for properly sprayingthe in terior surface `of each can as it is rotated in coperative relation with the spray head.

This controlling device or valve M is preferably automatically operated as required by means of a lever m, carrying 'a roller m1 adapted to be engaged by the .can when it is pushed into operative relation with the spray@ head by. the rotatin and reciprocating can transferring device pivoted to the frame at m2 and is connected the required amount vof by a link 'nea with a movable link or arm m4 having a notch m5 adapted to engage a pin m on the valve operating lever or arm m7 .so that when mid cam operated link or arm mi* is moved by said can operated lever m into position for the notch m to engage the pin of the valve operating arm or lever, the cam m8 on the camshaft R,"through a lever m connected with said link or arm m, will automatically operate or open and close the air valve M at the intervals required to spray upon the interior surface ofv euch can just material. y f

The piston p of the pump- Pis preferably operatedl byaneccentric- 1 on the shaft p2 which has a gear ,p-"m es in on the shaft- R, the eccentric ing connected with the pump pistonhy a link p4.

The su -ply tank N for' the liquid lacquer is preferahlyfrfur hed with an agitator .orf dasher T which is' operated by. a connection. T1 fiom the p of the pump P.

I clai'mz- 1. ,In a machine .forlacquering or coating the' interior' surfaces (if.r cans,` the; combinafreshly sprayed cans directly pass, substanand which lever m is can rotating mechanism,

lacquer or coating with a gear r' .at the end -of t Vtion with a spray head, of a can feed rundrier into and through `which t-he freshly.

I passing through the drier,

sprayed cans directly pass, substantially-as.

specified.'

3. In a can coatin the-combination wit of a spraying device,

or lacquering machine, a' can rotating device, a can feed device, a

drier into and through which the freshly f sprayed cans directly pass,and means for rolling the cans to the drier, substantially as specified. i

4. In a can coating or lacquering machine, the combination with a can rotatin device, of a -spraying device, a can feed evice, a drier -into and through which the freshly sprayed cans directly pass, means for rolling and means for rolling the cans tothe drier, the cans through lthe drier,

substantially 'as specified..

5. A can lining machine comprising 4in combination means for rotating the cans, means for feedin the cans-one by one to the can rotating mec anism, a s rayingldevice, means 'for intermittently `anV automatically controlling the operation of the s raying device, anda drier into and throug which the tially as `specified.

can lining 'machine comprising" in combination means for rotating the cans', means for feeding the cans one by one to the means for intermittently controlling the operation of the spraying device, a drier, and 'means for rotating the cans-while passing through the drier, substantially as specified.

` A can lining machine comprising in combination means for rotating the cans, means for feeding the cans one by one to the can. rotating mechanism, a spraying de and automatically ical vice4 means for intermittently and automaty controlling the operation of thespray- .ing device, adrier, means. for rotatingLthe cans while passingthrough the drier, and means for rotating the cans as they are being transferred from the s ray-ing mechanisin'to the drier, substantially as-specied.

. 8. The combination with a can rotatin mechanism having a stationiary, head wit anti-friction rollers ada ted to-'tangentially enga-ge the annular shou der specified.` 'v y 9. The combination with a spray head, of acan rotating mechanisifn having astation- '10.5' a'spraying device,

aspray head, of I e can, substantiallyl las l ary head with anti-friction rollers adapted to tangentially engage the annular shoulder atthe end of the can, and-a reciprocating and rotating can holder chuck engaging the opposite end of the can, substantially as specified.

10. In a can coating machine, the combination with a spray head, `of a rotating and reciprocating can holder chuck, and an opposing chuck or head having anti-friction conical rollers adapted to engage the annular shoulder of the can, substantially as specified.

' 11. In a can coating machine, the'combination with a spray head and means for rotating the can in relation to the spray head, of an air supply valve for` the spray head and a movable device adapted to be en- 'aged by the can while it is eing rotated or controlling or 4setting in operation said air-blast valve, substantially as specified.

12. In a can .coating machine, the combination with a spray head and means for rotating the can in relation to 4the spray head, of an air supply valve forthe spray head and a movable device adapted to be engaged by the can while itis being rotated for controlling and setting in operation said air-blast valve, said movable device carrying an anti-friction roller'for direct engagement with the rotating can, substantially as specified. i

13. In a can coating machine, the combination with a spraying device, and means forl rotating the can, and a device for controlling the compressed air lsupply of the spraying device and-means engaged by the rotating can for actuatin said controlling device, said spraying device being adapted .to enter the can vandproje'ct the, coating l against the interior surfaces of the .rotating can, substantially" as specified.

15. In a canI coating machine, the comm vbination with a lspraying device andcan rotating means, of an air valve, valve operating mechanism and a. movable device engaged by the can to be sprayed for setting said valve operatingv mechanism 1n action and can feed mechanism, said sprayingde-A vice being adapted to enter the can and project the coatingliquid against the interior surfaces of the rotating can, substantially as specified.

16. Iii a can coating machine, 'the combination with a spraying device and can rotating means, of an air valve, valve operating mechanism, a movable device engaged by the lcan to be sprayed for setting said valve operating mechanism in action, can feed 'mechanism and a can ejector, said spraying device being adapted to enter the can. and project the coating liquid against the interior 'surfaces of the rotating can, substantially' as specified.

17. In a can coating machine, the coinbination with a spraying device and can rotating means, of an air valve, valve operating" mechanism, a movable device engaged by the can to be sprayed for setting said valve operating mechanism in action, can feedA mechanism and a can discharge runway, said spraying device being adapted to enter the can and project the coating liquid against the interior surfaces of the rotating can, substantially as specified.

18. In a can coating machine, the combination with a spraying device and can rotating means, of an air valve, valve operating mechanism, a movable device engaged bythe can to be sprayed for setting said valve operating mechanism in action, can feed mechanism, a can discharge runway and a dryingchamber having a can runway extending through it, substantially as specified.

19. vIn a can coating machine, the combination with a spraying device and can rotating means, of an air valve valve operating mechanism, a movable evice engaged by the can to be sprayed for setting said valve operating mechanism in action, can feed mechanism, a can discharge runway, a drying chamber having a can runway extending through it and an endless conveyer for rolling the cans through the drying chamber, substantially as specified.

20. In a can coating machine, a spraying device comprising a liquid chamber casing having an overflow artition, an air chamber. casing, a series oi)- upright liquid nozzles arranged in a curved row, a series of d1- -vergent air nozzles, and a holder for said liquid nozzles removably secured to said liquid chamber casing to facilitate their removal for, cleaning or repairs and replacenfit and adjustment, substantially as speci- 21. In a can coating machine, a spraying device -comprising a liquid chamber casing device comprising a liquid chamber casing having lan overflow partition, an air chamfber casing, a series of upright liquid nozzles aeae'rsA arranged in a curved row, a series of diver- .gent air nozzles, and a holder for said liquid nozzles removably secured to said liquid chamber casing, said air chamber casing being removably secured to saidliquid chamber casing, substantially as specified.

A23. In a can coating machine, a spraying -device comprising a liquid chamber casing having an overflow partition, an air chamber casing a series of upright liquid nozzles arranged 1n a curved row, a series of d ivergent air nozzles, and a holder for said liquid nozzles removably secured to said liquid ber casing, a series of upright liquid nozzlesarranged in a curved royv, a series of divergent air nozzles, and a holder for said liquid nozzles removably secured to said liquid chamber casing, said seriesof upright liquid nozzles having their ylower ends projecting I deeper into the liquidv chamber at the. end

.having an overflow portions of the series than at the middle portion thereof, substantially as specified.

25. In a can coatin machine, a spraying device` comprising a iquid chamber casing having an overflow partition, an air chamber casing, a series ofupright liquid nozzles arranged in a curved row, a series of divergent nozzles, and a" holder for saidliquid nozzles removably secured to said liquid chamber casing, in combination with a liquid supply pipe and return pipe, a liquid Vsupply tank and a pump for returning the overfiow liquid to the supply tank, substantially as specified.

26. In a can coating machine, a spraying device comprising a liquid chamber casing having an overflow artition, an air chamber casing, a series o upright liquid nozzles arranged in a curved row, a series of divergent nozzles; and a holder vfor said liquid.

nozzles removably secured to said liquid chamber casing, in combination with a liquid supply pipe and returnpipeqa liquid slip ly tank, a pump for returning the ove low liquid to the supply tank, .a compressed air supply pipe, a valve therefor and means for automatically operating said valve, substantially .as specified;

27. In a can coating machine, a spraying device comprising .a liquid chamber-casing artition, an air chamber casing, a series pi) upright liquid nozzles arranged in a curved row, a series of diver- Agent nozzles, and 'a holder `4fori said liquid nozzles removably vsecured to saidvliquid chamber casing, in combination with'a liq' .uid supply pipe and return fpipe, a liquid ,A

supply tank, a pump for returning the overdevice comprising a liquid chamber casing V having an overflow partition, an air chamber casing, a series of uprightv liquid nozzles arranged in a curved row, a series of divergent nozzles, and a holder for said liquid nozzles removablyv secured-to said liquid chamber casing, in combination with a liquid supply pipe and return-pipe, a liquid supply tank, a ump for returning the overflow liquid to tiie suplply tank, a compressed air supply/pipe, a va ve therefor, means for automatically operating said valve, means v for rotating the can being sprayed, and means for automatically delivering the cans one by one to said can rotating means, substantially as specified.

29. In a can coating machine, a spraying y device comprising a liquid chamber casing -having'an overflow partition, an air chamber casing, a series of upright liquid nozzles a1.'- ranged in a curved row, a series of divergent nozzles, and a, holder for said li uid nozzles removably secured to said liquid chamber casing, in combination with a liquid supply pipe and return pipe, a liquid. supply tank, a pump forv returning the overiiow iquid to the supply tank, a compressed air supply pipe, a ,valve therefor, means for automatically operating said valve, means for rotatmatically delivering the cans one b one to said can rotating means and means or withdrawing the Vcan from -the spraying device, substantially as specified. 30; Ina can coating machine, a 'spraying device comprising a liquid chamber having :in-overflow partition, an air chamber casing, .a series of upright liquid nozzles arranged in a curved row, a series of divergent nozzles, and a holder forsaid liquid nozzles removabl .secured to lsaid liquidchamber @using in combination with a liquid supply pipe and return pipe, 'a liquid supply tank, a pump for returning the overflow liquid to the suppl tank, a. compressed `air supply ipe, a va ve therefor, means for automatica ly o erating said valve, means for rotatin t e 'can being sprayed, means for automatically delivering. the cans :one by one to said can rotating means, means' for withdrawing the can from the spraying device, a dryingl devices, substantia l as specified.

l CHA LES S. BUCKLINL Witnesses: i 'HARRY KREBs, 1 l H.M.`LAWs.

I :ing the can being sprayed, means for auto-