US2206801A

US2206801A - Apparatus for internally striping can body side seams

Info

Publication number: US2206801A
Application number: US217556A
Authority: US
Inventors: Charles J Aulbach
Original assignee: Continental Can Co Inc
Current assignee: Continental Can Co Inc
Priority date: 1938-07-05
Filing date: 1938-07-05
Publication date: 1940-07-02
Anticipated expiration: 1957-07-02
Also published as: DE713272C

Description

July 2, 1940. c. J. AULBACH APPARATUS FOR INTERNALLY STRIPING CAN BODY SIDE SEAMS Filed July 5, 1938 4 Sheets-Shea?l 1 A, W M, Nb NN QN qw w w A v( v c l J hh @n E mw wh n M III NN @d Nh.. .d/ IIIJ N..Q\% NW r iv- E n u iQ! /f #Il .rn 5.1M hmmm ....mz wila.--" -TP NW m6 Aw ww; 1, un www, ,l .L mw ww 1 .MHMMHMMFIHNLJ 1||||||r uw. .H LUMJQHIHIF EN -Il n D ma. o Qn Nh" wh@ mw s. MG m m ilu 1, 11 I wm am um wm b R ww bwmw mvQv/rvw/Whm. .QW WW WY July 2, 1940. c. J. AULBACH APPARATUS FOR INTERNALLY STRIPING CAN BODY SIDE SEAMS 4 Sheets-Sheet 5 Filed July 5, 1938 @ttm/"MIM July 2, 1940. c. J. AULBACH 2,206,801

APPARATUS FOR INTERNALLY STRIPING CAN BODY SIDE SEAMS Filed July 5, 1938 4 Sheets-Sheet 4 u, y u M m ,s ww k, .im m a Y m W O O O O o O o. Wl \o\ I! wm. m.,

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`Patented July 2, 1940 APPARATUS FOR' INTERNALLY'STBIPIN CAN BODY SIDE SEAMS Clarles J. Aulbach, Syracuse, N. Y., assignorl'to Continental Can Company Inc., New York, N. Y., a corporation o! New York Application July 5, 1938, Serial No. 217,556

10 Claims. The invention relates generally to apparatus for forming` cany bodies and primarily seeks to provide novel means for applying a stripe of enamel or lacquer over the side seams of the can bodies internally thereof. i l

In order `to protect products packaged in completed containers from direct contact with the metal of which the containers ,are formedl it is customary to provide the containerswlth interior protective coatings. 'lhis coating usually is applied to ,the blanks from which the can bodies are formed. In the formationof the can bodies the blanksare fedkalong in a body maker, are formed about and side seamed on a forming horn, and then, while 4the can bodies are being fed along on thev horn, the side seams are suitably solder bonded.` The protective vcoating is omitted from the portions of the blanks which are joined in the formation of the side seams so that eicient solder bonding can be effected, and

it is the purposeot-the present invention to pro-- vide novel meansgiorapplying the desired protective coating to thesestripes of metal surface left barein the region `of the side seams internally of the can bodies.

An object of the invention is to provide means for moving the can bodies alongin spaced relation, means for `engaging the side seams internally of the can bodies as they are moved along, and means for applying protective coating material to the side seam engaging means.

Another object of the inventionis to provide apparatus 'of the character stated in whichthe side seam engaging means comprises a brush.

Another object of the invention is to provide apparatus of the character stated in which the protective coating material is applied to the side seam engaging means through the spaces intervening the moving can bodies.

Another object of the invention is to provide apparatus of the characterdescribed in which the protective coating material is applied to the side seam engaging means through the spaces intervening themovlng can bodies without contacting the can bodies externally. i Y Another object of the invention is to provide apparatus ofv the character described in which the protective coating material is applied to the side seam engaging means by an applicator portion which is moved synchronously with the can bodies and enective only at the spaces intervening can bodies. r l l Another object of the invention is to provide apparatus of the character described in which the applicator comprises a rotor having a helical (Cl. ill-40) rib and which rotates in a bath of protective coating material.

Another object of the invention is to provide a novel combination ofthe protective coating applying devices` andmeans for supporting them and the moving can bodies.

vWith the above and other objects in view which will hereinafter appear, the nature ofthe invention will be more `clearly understood by following the detailed description, the appended claims, and the several views illustrated in the accom- Danville drawings.

In the drawings, y

Figure l is a side elevation illustrating the invention.`

Figure 2 is a plan view, parts being broken away. y

Figure 3 is an enlarged detail sideview of the taipplicator, parts being broken away and in sec- Figure 4 isa vertical cross section taken on the line 4-4 on Figure 3.

Figure 5 is a view similar to Figure 3 and illustrating the delivery end of the horn.

'Figure 6 is a vertical cross section taken on the line `B-Bon Figure 5.

.Figure 7 is a view similar to Figure 3 and illustrating the receiving end oi the horn.

Figure 8 is a vertical cross section taken on the line I--B on Figure '7.

Figures 9 andlO are detail views, respectively illustrating the abutment bar in plan and side elevation.

Figure 1l is a sectional perspective view illustrating a fragment of a can body with the protective stripe applied thereon.

The improved apparatus for striping can body side seams internally of the can bodies preferably `is mounted for direct cooperationv with a body maker whereby the can bodies are received from the body maker Just after the seams thereof have been solder bonded. It is to be understood, however, that the apparatus is adaptable to use in any place where can bodies arebeing moved along under such control that the side seams thereof move in longitudinal alinement.

In the drawings, ln which like numerals of reference indicate like parts in all of the figures, 5 designates a supporting arm at one end of which is supported a longitudinal housing 6, the latter 50 the pedestals support a pair of laterally spaced I6 longitudinal supports or guides 9 for the can bodies, the supports being shaped to conform to y the curvature of the can bodies. See 4, and 6.

Adjacent each pedestal 8 is mounted a support Figures 1,

pin bearing block Ill, and in each block there is.

the body `maker is indicated at 40 and includes provided a plurality of vertical bearings III for a group of horn supporting pins I2. `'Ihe pins are vertically reciprocable in the bearings and project above and below the blocks as indicated in` Figures 5 and 6 of the drawings. Each pin carries an adjustably mounted, tapered supporting head I3 engageable in a receiving socket I4.

formed in the lower portion of a -horn I5.

It will be observed by reference to Figure 1l of the drawings that a group of the pins is disposed beneath each end' of the horn, and these pins constitute the sole supporting means forthe horn and are movable, in a manner later to be described, for allowing can bodies to pass over and along the horn without being contactedby the supporting pins.

At its lower end each pin islink-connected as at I6 to an arm I1 pivoted at I3v on a mounting shaft and equipped with a roller I9 disposed for engagement with a cam 2 0 rotatable with a cam shaft 2 I .and including a lift portion V22. See Figures 1, 5 and 6 of the drawings. The vcam shaft 2| is rotated in timed relation'with thev movement of the cam bodies along the horn, and the cams 26 are so positioned on the shaft 2l that the supporting pins are successively projected in to and retracted from the receiving sockets Ilin the horn so as to be engageable with the horn only in the spaces intervening moving can bodies, as shown in Figures 1 and 5 of the'drawings. wardly by anchored spring equipments 23 so that the rollers I9 are constantly held in engagement with the cams 20.

'Ihe horn I5 is provided with a longitudinal groove 24 along its upper surface, as shown in Figures l, 3, 5 and 6, to receive the dogs 25 which depend from the conveyor chain 26 and serve to ymove the can bodies along and over the horn in the chain 26 passes over a driven sprocket 39 mounted on a shaft 3I supported on a-bracket 32 to which the abutment b ar is secured as` at 33 and which is inturn supported as at vv34 on a stationarily supported bracket 35. See Figures The bar 29, shown indetail in Figures 9 and l0, is grooved as at 36 to form a guideway for the lower flight of the chain 26, the lower portion of the grooveway being partially closed by supporting plates 31. Thus the lower flightof the chain is copned against moving upwardly or downwardly and the can body driving dogs 25, projecting into the longitudinal grooveway 24 iin,

the horn, cooperate with the pin sockets "M in supporting the horn against lateral displacement both at the upper and lower portions thereof. It

will also be observed that theA abutmentfbar 29' and the plates 31 thereof are disposed immediate- 1y above the horn soas to actas abutment means extending substantially the full length ofI the horn and securing it against displacement byv any i upward thrust imparted thereto. A grooved guideway 36 is supported as at 39 above the bar 'I'he arms I1 are constantly urged down- 29 and suitably the upper flight of the chain 26, as shownin Figures 1, ?,l 5, 6 and'8 of the drawings.

m this particular mustrauon', the apparatus is'disclosed as mounted' at the end of a body maker. .Theusual canbody feeding machine of the usualfeed dogs 4I. yThis chain lpasses over a driven sprocket 42. and the cans moved alongin longitudinally spaced relation by the'chain 40 lare stripped oil. by feed dogs-'43 carried'b'y av transfer chain `fwhich is moved more rapidly than the chain 40 and passes over an idler sup- Thus movement of the chain 40 is imparted to the conveyor chain 26. It will be observed by reference to Figures 2 and 8 of the drawings that the transfer chain 44 is' disposed slightly to one side of the center line of the apparatus, and the can bodydriving dogs 43 thereon engagethe can body edges as shown in Figure 8 of the drawings,

It "will be observed by reference to Figures'l and 3 ofthe drawings ,that the horn I5 isrecessed at the lower central portion 'thereof as. atv

56 and is equipped with mounting ribs 5I to which brackets 52 are vremovably secured as at 53,` said bracketsserving as supports for a brush 54. T he brush is thus mounted to extend longitudinally of the horn and in position for engaging the side seams of the can bodies internally the'reof as shown in Figures 3 and 4 of the drawings.

Beneath the brush, in'a recess 55 provided in the housing 6, a reservoir 5 6-is removably mounted as at 51-and contains a'bath 58 of protective coating material which is to be applied inthe form of a longitudinal stripe in fthe region ofthe side seamsinternally of the can bodies. Arotor 59 is longitudinally disposed androtatably mounted in the reservoir and includes a peripherally extended helicalrib 60which dips in to'the coating material and functions as a coating material applicator. The rotor includes a shaft portion which 'is extended beyond one end of the reservoir and-has rotation imparted thereto" by a chain and sprocket equipment 6I fromfany suitable moving part ofthe body maker (not shown) l so that the rotor will be driven in suitably timed relation with the moving can bodies.

The cam shaft v2I.- `is similarly `driven by sprocket and chainvconnections 62 so thatthe lsupporting pins I2 will be operated in suitably timed relation with themoving canbodies as hereinbefore described.

In'Figure 11 ofthe drawings, I have illustrated a fragment ofa'can body. 'The can bodies are designatedC and have the inner surfaces thereof provided with a protective coatingindicated at e and which terminates as at t so as to provide f a` bare strip of metal. in-the region in which the hooksh intereng'ageto form theside seams. 'I'he metal is left bare'in this region so as to avoid frustrationof elcient solder bonding. After the canV bodies have been completed by the solder bondingoperation the stripes of protecting coating is appliedoverthe previously bare metal'portions by the apparatusherein described.

As the can bodies C are moved along the horn in equidistantly spaced relation, as shown in Figures 1 and 3 of the drawings, the helical rib 80 .will carry protective coating material from the of structure and arrangement oi parts may be variously changed and modiiied without departing from the spirit and scope of my invention. I claim: l: kIn apparatus of the character described. means for moving side seamed can bodies in longitudinally spaced relation, means i'orengaging the side seams internally of the can bodies as they are moved along, and means'including an applicator rotatable about an axis disposed generally parallel the line along which the can bodies are fed Vfor applying protective coating material to the side seam engaging means through the spaces intervening thermoving can bodies. Y

2, Injapparatus of the character described, means for moving side seamed can bodies in longitudinally spaced relation, means for engaging the side seams internally. of'the can bodies as they are moved along, and movable means engageable only with said side seam engaging means through spaces intervening the Vmoving' can bodies for applying protective coating material to the side seam engaging means without contacting the can bodies externally.

3. In apparatus oi the character described, means for moving side seamed can bodies in longitudinally spaced relation, means for engaging the side seams internally oi the can bodies as they are moved along, and means movable synchronously with the can bodies to progressively contact said side seam engaging'means only at spaces intervening moving can bodies for applying protective coating material to the side seam engaging means.

4. In apparatus of the character described. a brush engageable with the side seams' internally of the can bodies as they are moved along, a protective coating material bath, and an helical applicator rib dipping in said bath and engageable progressively with that portion of the brush which is exposed in the space intervening a pair of moving can bodies.

5. In apparatus of the character described, a brush longitudinally disposed and stationarlly supported for contacting the side seams internally of the can bodies as they are moved along, a reservoir containing a bath of protective coating material, a rotor disposed longitudinally in the reservoir and rotatable about an axis paralleling the line of travel oi the can bodies and having an helical applicator rib projecting therefrom and serving to pick up material from the bath and apply it to the brush, said rotor being rotatable in'timed relation with the can body travel whereby the rib will progressively engage the brush always in a space intervening two moving can bodies.

6. In apparatus of the character described, a

. horn, means for mdving side seamed can bodies over and along the horn in spaced relation, a

, hom for contact with the nde seannmtemally o! the moving can bodies. a reservoir supported beneath the horn and containinga bath of protective coating materiaLa rotor -having an. helical rib land rotated in timed relation with the moving canbodies so that the rib dips into the bath and picks up coating material and applies it to the brush in the spaces intervening Amoving can `bodies, and movable means engageable ,with the horn at spaced points endwise ot they reservoir for supporting44 it` lwithout interfering `with can bodies moving thereover. p. l

7. In apparatusv ot the character described, a horn, means kfor moving side seamed can bodies over and along the horn in lspaced relation, a

brush supported intermediate the ends of the horn for lcontact with the side seams internally of the moving can bodies, a reservoir .supported beneath the horn and containing a bath of protective coating material, a rotor having an helical rib and rotated in timed relation with the moving can bodies so that therib dips into the bath and picks up coating material'and lapplies it to the brush in the spaces intervening moving can bodies, movable means engageable with the'horn at spaced points endwise of the reservoir for supporting.v it without interfering with can bodies moving thereover, and means eiiectlve above and below the horn for preventing lateral displacement thereof.

8. In apparatus ot the character described, a horn. meansfor moving side seamed can bodies over and along the horn in spaced relation, a brush supported intermediate the ends. of the horn for contact with the side seams internally of the moving can 'bodiessa reservoir supported beneath the horn and containing a bath of protective coating material, a rotor having an helical rib and rotated in timed relation with the moving can bodies so that the rib dips into the bath and picks up coating material and applies it to the brush in the spaces intervening moving can bodies, and movable means engageable with the horn at spaced points endwise of the reservoir for supporting it without interfering with can bodies moving thereover, said can body moving means including a chain disposed centrally over the horn and having depending dogs engageable with the can bodies, and said horn having a. longitudinal grooveway therein for receiving said lugs whereby said lugs serve also to prevent lateral displacement of the horn.

9. In apparatus of the character described, a horn, means for moving side seamed can bodies over and along the horn in spaced'relaton, a brush supported intermediate the ends of the horn for contact with the side seams internally of the4 moving can bodies, a reservoir supported beneath the horn and containing a bath of protective coating material, a rotor having an helical rib and rotated in timed relationwith the moving can bodies so that the rib dips into the bath and picks up coating material and applies it to the brush in the spaces intervening moving can bodies, movable means engageable with the horn at spaced points endwise of the reservoir for supporting it without interfering with can bodies moving thereover, said can body moving means including a chain disposed centrally over the horn and having depending dogs engageable with the can bodies, said horn having a longitudinal grooveway therein for receiving said lugs whereby said lugs serve alsoto prevent lateral displacement of the horn, and means for preventing upward or downward movement of the portion of 75 the chain adjacent the horn and for preventing upward movement of the horn.

10. In apparatus of the character described, a horn, means for moving side seamed can bodies over and along the horn in spaced relation, Aa brush supported intermediate the ends of the horn for contact with the side seams internally of the moving can bodies, a reservoir supported beneath the horn and containing a bath of protective coating material, a rotor having an helical rib and rotated in timed relation with the moving can bodies so that the rib dips into the bath and picks up coating material and applies it to the brush in the spaces intervening moving can bodies, movable means engageable with the horn at spaced points endwise of the reservoir for supporting it without interfering with can bodies moving thereoven said can body moving means including a chain disposed centrally over the horn and having depending dogs engageable with the can bodies, said horn having a longitudinal grooveway .therein for receiving said lugs whereby said lugs serve also to prevent lateral displacement of the horn, and means for preventing upward or downward movement of the portion of the chain adjacent the horn and for preventing upward movement of the horn, said last named means including an abutment bar having a grooveway therein for receiving said chain portion and being of a length for extending over substantially all of said horn.

CHARLES J. AULBACH.