US1477418A - Machine for providing closures with seals - Google Patents

Description

919 5 Sheets-Sheet l C. O. BERG MACHINE FOR PROVIDLNG CLOSURES WITH SEALS Filed March l l`Il Il H Il Il ec., 11, i923.

mmm@

ec. M 1923.'

` C. O. BERG MACHlNE FOR PROVIDING cLo'sUEs WITH SEALS Filedmarcn' 1o. 1919 '5 Sheets-Sheet 2 Dec, M, 1923.

C. O. EER@ MACHINE FOR PROVIDING cLosUREs WITH SEALS 5 Shee'csPSheet 5 Filed March lO l mmm ec.. Hwg. c o BERG MACHINE FOR PROVIDING cLosUREs WITHv SEALS Filed March l0 C. O. BERG MACHINE FOR PROVIDING cLosUREs WITH sEAL's Fi-led March lO 1919 5 Sheets-Sheet 5 lllllv.. if

cant ossea sensor ny ferr, runssaonusnrrs, aserenor. no narran rassen HPANY, CORPQRATION F MASSAGSETS.

PROVDING CLQSUEI@ WITH EAS.

Application tiled March l0, 1919. @ferial lilo. 283.9%0.

To all whom it may concern:

Be it known that l, CARL @scan BERG, a citizen of the United States, and a resident of Everett,l in the county ot Middlesex and a State of Massachusetts, have invented lmprovements in Machines for Providing Closures with Seals, of which the following is a specification, reference being had to the accompanying drawings, forming part thereof.

This invention relates to machines employed in the manufacture of bottle caps and other articles.

A type of bottle cap that may be produced .15 by the present embodiment ot the invention is made of sheet metal which is dished somewhat and is provided with an annular tiaring fiance or skirt that is tiuted about its edge. The dished portion ot the cap vis furnished with a cushioning member which usually comprises va disk of cork. In order to prevent the contents of the bottle from coming into contact with the cushioning member, it is customary to apply a circular seal or protecting member thereto of substantially the diameter ot the end of the opening.,y in the neck ot the bottle. This seal is usually secured to the cushioning` member by means ot' an annular 'flange formed "in thereon which is inserted into a circular cut or scoring made in the cushionino' member and is held therein byA `trictional contact with the Walls ot said scoring. `Usually the seal is made of thin ductile metal having: little stability and hencethe flange thereof cannot be depended upon to resist deflection if brou 'ht into contact with the surface of the cus ioning member ot' Vthe bottle cap.` lt is therefore important that the 'Harige of 40 the seal should be brought into accurate registry with the scoring in the cushioning' member before the seal and cushioning member are brought toward each other to introduce? said tlangeinto the scoring.

One object ot' the invention is to construct a machine of the nature described so that a seal or protecting;r member having allange or au extension may he accurately applied to a cushioning member et a bottle cap or` other closing'device used 'to close bottles, jars or other containers.

Another object of the invention is to construct a machine of this nature so that the seal or protecting member may be made from a strip of suitable material; that the cushioning member may be scored or vpro vided with a receptacle for an extension ot said seal; and that such o erations may be so controlled that ultimate y -the said extension from said seal may be brought into registrv With and be received by the scoring ot said cushioning member.

Further objects ot the invention will appeartrom the following description.

The invention consists in the means Wherebythe progection of the Seal and the scoring` or depression ot the cushion member are brought into registry.

The invention also consists in the means for making the seal combined with the means for scoring the cushion member and the means whereby accurate registryot the elements may be eected.

The invention also consists in such other novel features of construction and combination of parts as shall hereinatter he more fully described and pointed out in the claims. F1gure l, represents a plan View of the machine.

Figure 2, represents a sectional View taken on the liney 2--2 of Fig. l.

Figure 3, represents a horizontal sectional view taken onthe line 3-3 of Fig. 2.

Figure et, represents an enlarged sectional view taken on the line 4-4 of Fig. l, of portions ot the scoring means and cap holding means.

Figure 5, represents a sectional View taken on the line 5-5 of Fig. 4.

.Figure 6, represents an enlarged detailed sectional view taken on the line tl-ti of Fig. l. of portions of the seal shaping mechanism. y

Figure 7, represents a sectional view mostly in elevation taken on the line ii- 7 of Fig. 1 looking trom the rear ot the machine.

Figure 8, represents a detail sectional View taken on the line 8-8 of Fig. l, et portions of the mechanism for discharging the completed caps from the machine.

Figure 9, represents an enlarged detail sectional view taken on the line 9 9 of Fig. 1,' of portions of a cap delivering mechanism, the parts thereof beine shown in retracted position.

Figure 10, represents an enlarged Sectional view taken on the line 10-10 of Fig. l, of portions ot4 the seal applying mechanism.

Fi gure 1l, represents a `plan View of a hotliti@ tle cap before the seal or protecting member the seal applied to the cushioning member.

Figure 14, represents a sectional view taken on the line 14--14 of Fig. 13.

Similar characters of reference designate corresponding parts throughout.

Referring particularly to Figs. 1 and 3 of`the drawings.`the machine is provided with a driving shaft 10 that is driveny from an suitable source of power by a driving Apu ley 124 mounted thereon, which pulley is adapted to be clutched -to the shaft by means of a common type of clutching device 14. The drivin@ shaft carries a bevel gear 16 which continuously drives a. bevel gear 18 that is journaled on a stud 20 secured to the frame of the machine. The top side of the bevel gear 18 carries a roll 22 which cooperates with. a radially slotted disk24 to impart a uniform step by step movement to a shaft 26 to Whichthe disk 24 is secured. u'.l`heupper end ot the shaft 26 carries a feed dial 28 which is in sliding enga ment with a circular table 30 secured tothe rame of the machine. The intermittently rotating shaft 26 also carries a gear 32, which, by operatively engaging gear teeth formed on the periphery or a carrier or table 34, intermittentl rrotates the table in timed relation to the eed' dial 28. The table 34 in'turn imparts a corresponding intermitteru; movement to a disk carrier or table 36 through the engagement of the gear teeth. on the periphery of said table 34 with a gear 38 secured on the underside of the dislr carrier or table 36. The table 36 is journaled on a stud 40 projecting from the Vframe of the machine and is held in place by a Washer 42 which is secured to the stud by a cap screw 44. y

The bottle caps which are indicated at a are presented to the machine from a suitable hopper through a chute 46, which is arranged to severally deliver the caps to recesses 48, formed in the periphery of the feed dial 28, which recesses cooperate with the top side of the circular table 30 and a peripheral dan e 49 on the table to form 'pockets 50 for t e bottle caps. The relative timing ot the intermittent movements of the feed dial 28 and the! rotating table 34 is suclrthat the recesses 48 and` suitable spaced pockets 52 on the table 34 are successively brought into registr after each movement of thejdial and ta le and at a.

point beneath a plunger 54. (Fig. 2). When this occurs, the plunger 54 is depressed to force the caps down through an opening 56 in the circular table 30 and into oneof the pockets 52 in the table 34. As the bottle Levante caps are being carried intermittently by the table 34,they are successively acted upon by a vscoring device 58 (Fig. 4) which forms an annular scoring or cut b in the 'cushioning member -o of the bottle caps. (Fig. 12). The caps are-then. successively transferred beneath a diskor seal applying device 60 (Fig. 2) which attaches a seal to the cushioning member by forcing the flange upon the periphery oi' the seal down into the annu# larscorng in the cushioning member. The caps are then successively carried by the table 34 to a seal setting devicel64. (Fig. 10)

which applies additional pressure toi the seals, and thereafter the caps are successively ejected from the pockets in the table 34 and discharged from the machine through a chute 66 which is secured to the machine frame. The plunger 54, scoring device 58, seal applying device 66 and disk setting device 64 reciprocate in unison and in timed relation to the intermittent rotation of the table 34. To this end, .said devices and plunger are-carried by a vertically reciprocating plunger 70 (Figs. il and 2) which is actuated by means of an eccentric 7 2 carried by the driving shaft 10. The' plunger 70 is guided by a bearing 7l in the frame of the machine and by rodi-3,73, 7 3 securedto a cross bar 74 of the frame, which rods extend through apertures in lugs or brackets 7 5 76, Fig. 9, and its shank extends throughl and is guided in an aperture in a bracket 78 secured by bolt 80 to the reciprocating plunger 70. The plunger 54 is urged downwardly by a spring 84- coiled about a reduced portion of the shank ot the' plunger and interposed between a shoulder 86 formed on the shank, and a sleeve 88 threaded into said aperture in the 'bracket 78. The downward movement of the plunger 54 is limited by nuts 9U threaded on the upper end thereo The scoring device 58 (Figs. 1, 4 and), comprises a scoring or cutting tool 92 secured. to the lower end of a spindle 94 which is mounted to rotate in a bracket 96 secured by bolts 98 to the reciprocating plunger Z6. rlhe pressure exerted Aby the cutting tool 92 is resisted by a thrust bearing 99 on the spindle 94, which bearing is interposed between a nut 100 threaded on the spindle and a horizontal armll which forms a part of the bracket 96. A slight clearance is provided between the upper surface of the part 100 and the lower stirfaee of the bracket 101.. rlhe spindle 94 is rotated continuously during the operation of the machine by a gear 102 secured'to the upper end thereof. which gear is operatively lvertical sha raffaele pins 108 by a block 110 secured to the lower end of a shaft 112. The lshaft 112 is journaled in a bracket 114 that is secured to the cross bar 74 of the machine frame. A pinion 118 is secured to the upper end of the shalt 112 and is operatively engaged by a gear 120 that is secured to the underside of a 'sprocket Wheel 122,-j'ournaled lona stud 124 which projects upwardly 4from the bracket 114. This sprocket wheel 122 is driven by a sprocket chain 126 which connects the sprocket wheel with av sprocket wheel 128 c rried by the upper end of a 130 that is journaled in the frame of the machine. The shaft 130 is in turn driven by a bevel pinion 132 secured to its lower end, which `meshes withia bevel gear 134 secured to the main shaft 10 of the machine. v

ln order to allow for the reciprocation of the scoring cutter 92, and still el'ect conB tinuous rotation thereof, the pins 108 that connect the gear 104 to the head 110 are secured at their lower ends to the gear 104 and their upper ends are free to slide in apertures in said head.

When the scoring cutter 92 is broughtdown into 'engagement with the cushioning member of a bottle cap, as shown'in Fig. 4, it is necessary to firmly hold the cap against rotation by the rotation of the cutter 92,

otherwise the scoring-.would not be properly formed. Accordingly, the illustrated machine is provided with a presser `foot which firmly grips a cap adjacent the periphery of the cutter when the scoring 'tool is' brought into engagement with the cap. This;

presser foot comprises a sleeve 136 that surrounds the cutter and its upper end extends into and is guided by an annular recess 'in the bracket 96. I7lhe cylindrical sleeve 136 is also guided by pins 138 that extend into apertures in the bracket 96. The sleeve 186 is v urged downwardly #by springs' 140 mounted in apertures in the bracket 96 and bearing on Ithe upper end of the sleeve, 4the downward movement of which sleeve being limited bya shoulder 142 formed thereon engaging an-annular plate 144 secured to the bracket 96.

The seal receiving and applying devices which are equally spaced about the peripheiy of thetable 36 also successively cooperafe with'a vertically reciprocating cutting and stamping device 148. (Figs. 1, 2 and 6.) located at the front of themachine. rlhis cutting and stamping device is'a'ctuated in timed relation to the table 36 sothat each successive movement of the table brings one of the applying devices 184 into registry therewith. The seals are cut from a strip .sf of suitable material, which strip is fed in timed relation to the reciprocating movement of the cutting and stamping device 148 so that during a period of retraction of such device, the forward end of the strip is ad- -vanced into position to be acted upon by oft e -tormed in a collar 152, which is secured to the upper end Vof an elongated cylindrical bushing 154, that in turn is'secured in an aperture in a bracket projectin from the tranne of the machine. lVhen t e seal applying device 184 is brought into registry with the cutting and stamping device 148, a sleeve 1.56 thereof is depressed into contact with a cutting block 158 secured to the collar 152. Such movement oi the sleeve also depresses an upwardly spring pressed plunger 160 by the engagement ot a shoulder 162 formed on the sleeve 156 with the head of the plunger 160.- 'The shoulder 162 and the head4 et the plunger 160 are maintained in engagement by a spring 164 coiled 4 about the shank of `the plunger and interpod between a shoulder 166 on'the sleeve 156 and a sleeve 168 secured to the shank ofthe plunger. The sleeve 156 is normally maintained in retracted position by a spring 170 .coiled about a reduced portion of the sleeve receive the upper end of the plunger 160,

so that the spring itself doeslnot act to depress the plunger. Upon 'the up stroke of the cutting and stamping device, a circular shearing edge on the upper end of a sleeve 182 cooperates `With a corresponding shearing edge on the block 158; to cut aicir cularl blank fromthe strip a. immediately' thereafter a stamping member comprising a sleeve 186 is forced upwardly into the position shown in Fig. 6, which cooperatesl with the block 158 to form a )flange on the biank and thereby complete the 'formation of the" seal. The upturned llange on the seal usually is very narrow, only approximately one-thirty second' of an inch, so that the in-l side diameter of the lower extension on the part 156 is made about onesixteenth ot' an inch smaller than the insidediameter of the Y part 15.8.

-Upon the retraction of the seal-neceiving `[and applying device 184 andthe stamping member 186, a plunger 188 that. is axially mounted in the member 186' presses the seal against the. plunger 160 by the action of its spring 190 until the member 186 has become disengaged from the seal. The seal is then held in the receiving and ap lyingvdevice:

a plunger rod 192 which is actuated by a.

cam lever 194 (Fig. 2) to which it is connected through a,\link 196. The lever 194 is' pivoted at 198 on a bracket secured to the frame of the machine and its inner end is provided with a cam roll which engages a groove in a'cam 200. The retraction l of the plunger rod 192 acts near the limit of its down stroke tol retract the cutting member 182 byrthe engagement ofa collar 194 formed on the rod 4with an abutment 196 formed within a sleeve 198 to the upper end oit which sleeve the cutting member 182 is secured. Upon the up stroke of th`e plunger rod 192 a spring 204 which is coiled about the rod and. is interposed between a collar 205 thereon andthe abutment 196 I of the cam lever.

on the sleeve 198 acts to bring the cutting edge of the member 182 into operative engagement with the cutting edge of the cutting block'158, the upward movement of said cutting membery 182 beingl limited by the. engagement of a shoulder 206 thereon with the endl of the collar 152.

The strip s is fed to the cutting and stamping, devices by means of a feed roll 210 whichcooperates with .a table 212, over which table the strip is fed from a roll R mounted between brackets 214 secured to the if'rame'ot the machine. The feed roll 210 is urgedl downwardly toward the table by .being secured to an arbor 216, the ends of which extend through and are journaled in downwardly spring pressed 'blocks 218 that are acted upon by. springs 220 coiled about screws 222 which extend through apertures in the blocks and are threaded into the brackets 214. The intermittent movement is imparted to the feed roll 210 by a gear 224 secured to one end of the arbor 216 which, through gears 226and 228 is driven byl a gear 230. rlhe gear 230 is loosely mounted on a stud 232 secured to one' by a cam lever 240 pivoted at 242 on the frame of the machine, the lever 238 being provided with a slot at its lower end which is engaged by a lpin 244 on the upper end rIhe cam roll 246 on the cam lever engages the groove of a cylindrical cam 248 that is' carried b I a contin,

uously rotating shaft 250 Ajourna ed in bear ings in lthe'frame of the machine and driven byfa sprocket wheel 252 thereon, which is connected by a. sprocket chain 254 to asprocket wheel 256 on the main shaft 10. I .It will be understood, that as the seal receiving and applying devices are brought into registry with the cutting and stamping device 148-that -the will `successively receiveV completed sea s` and thereafter successivelybring them into position so that their flanges accurately register` with the engage and depress the plunger v160 of the seal receiving and applying device against the action of 'the spring 1 64, so that the fiange of the seal is accurately and firmly pressed into the cushioning member. The

'fact that the plunger 258 is spring pressed downwardly ensures a dwell in the application of pressure to the seals and thus permits the escape `of air pocketed under the seal and which otherwise `might unseat the seal. In order to insure that' the seals will be firmly applied to the cushioning members of the caps after being acted upon by the plunger 258, they are successively advanced to register with the seal setting device 64. rlliis device comprises a block 260 (Fig. 10) mounted to slide upon a bolt 262 threaded into an aperture in a bracket 264 secured to the plunger '70. This block is arranged to adjust itself to the top surface of the seal and apply a decided pressure thereto during the down stroke of the plunger' 70 by means of a spring266 coiled about the bolt 262 and interposed between the bracket 264 and the block 260. The downward movement- .of the block 260 on the bolt 262, during the up stroke of the plunger 70, is

limited by thehead 268 at the lower end of said bolt.

After the seals have been acted upon by the setting device 64, the bottle caps are successively advanced into alinement with the chute 66 at which time the are elevated above the pockets in the table 34, preparatory to their being discharged into the chute 66. To this end, the bottom of each pocket in the table 34 consists of the top surface of a vertically sliding block 270 (Fig. 8), the lower end of which block is provided with a cam surface 272 that engages a stud 2774 projecting Aupwardlyfrom the table 34 at a point in alinement with the chute 66,so

that as the pockets approach this point, the

blocks 272 ride up on the stud 274 to ele-A vatethe caps. The caps are then discharged into the chute by means ofa fingerv 27 6 that is secured to a rod 278 pivotally mounted in y invasie brackets on the frame of the machine- This linger is normally held against a stop 280 on the frame of the machine by a spring 282 coiled about the'rod 278c The nger 276 is actuated to discharge the caps into the clinte 66 by means of a stud 282 secureci to the plunger 70, which, upon the down stroke ofsaid plunger, engages a pin 281i projecting from the rod 278,V thereby actuating the finger to discharge the caps. After a pocket passes by the stud 27a its block 272 is permitted to drop by gravity to its normal position. To assist in securing accurate registration between the pockets in the carriers or turrets 36 and 34:, the carrier 36 is providezl with a series of holes 289 which are bashed to receive a pin 291 projecting (lovvnvvarflly from a short lateral extension ofthe arin 176. This pin enters one of the holes 289 at each downward stroke of the plunger and. corrects any' inaccuracy in the registration of the pockets in the tvvo carmers.

After. the caps have been discharged by the ejector 276 the plugs 2170 in the pockets 52 in the carrier 34C may remain in their raised; positions, ancl in order to ensure their return Vto the proper positions, a pin 293 is secnreol in a bracket 295 carried by the pliunf ger or head; 70 in the proper position to strike eacli plug 270 and force it clownwarolly before it arrives in position to receive another bottle cap.

Having thus describe my .invention l claim as nev/ anci clesire to secure by Letters Patent:

i. A; machine tor applying seals to bottle caps or the like having in combination, a horizontal rotary carrier provided vvitli. a plurality' o pockets equally spaced about the periphery thereof ca able ci receiving cops provided with c inning members, ineens for intermittently rotating tbe carrier, a vertical plonger entencting axially through the carrier, ineens for reciprocattlie plunger in timed relation to said in- -termittent movement of tlie carrier, a rotary too-l carried by the plunger for forming an annular scoring; in the cushioning; members as the caps are successively presentetl thereto by the carrier, an@ means for rotating said tool comprising a verticaiv stationary having; vertical axis connectecl to saiol toot through telescopino;z members.,

e: A machine for applying seals to bottle caps or the like having, combination, a horizont-ai rotary carrier provicleol with a plurality of pockets equally space .about the periplierv thereof for receiving caps provided vvit i cushioning; members, means for intermittently rotating carrier, a tool adapted to be rotated anni vertically reciprecatecl to terni an scoring in tite cushioning members as t; z caps are pre- ;iiereto, means tor reciprocating tite 'means for delivering said to sait-. pn-rtool in timed relation to the .intermittent movement of the carrier, and means for rotating said tool comprising a vertically stationary gear havin a vertical axis, said gear being connecte to said. tool through telescoping members,

3, A machine for applying seals vto bottle caps or tlielilre, having, in combination, a carrier provided with a lurality of pockets to receive bottle caps iaving cork disks therein, means for intermittently moving Asaicl carrier, a cutter for scoringA the cork disks in. saidcaps, a plunger movable 'rela-l tively to saicl carrier for forcing said cutter into said (iislrs, a rotary shaft carried by sai plunger and supporting said cutter, a thirst bearing between said shaft and plunger for transmitting motion to said shaft to force the cutter into said disks, and means for rotating saitl shaft about its axis. 4l; A. machine for applying seals to bottle; caps or tliev like., lia-ving, in combination, a carrier provierl with a plurality of pockets to receive bottle caps having corlr disks therein, means. for intermittently movin saifl carrier, a cotton for scoring the cor disks yin said caps, a plunger movable relatively' to: saicl carrier for forcing saiol cutter into saicl disks, a rotary sliaft carrieri 'by said-plunger and supporting; saifl cutter, a. thrust bearing7 between said sliait andi plunger for transmitting motion to said sliatt to force the cutter into saici disks, a drivin@ member on. saiol shaft, and;v connections etvveen said Vmember and,- a driving member rotating in fixed bearings tor driving sai shafto 5L A machine for appl ing seals to bottle caps having corlit disks tie-rein, comprising, in combination, a carrier having i pockets to receive saiel bottle caps, means for delivering' saisi caps to a plunger for forcing said caps into said pockets, a reciprocating anti rotating cutter for scoring said; (lists, means tor termina; anol presenting seals vier` application said clic-irs vvliile tliecaps in saicl pockets,V a plunger for forcing saicl seals into saicl ilislts, and a single operating mechanism :for giving said plonger ter their operating strolossn ti, ina/chine applyin e" seals to bottle caps having oo-rlr tiislrs therein, comprising, in combination, a rotary horizontal carrier having' 'pockets receive sai bottle cL s,

rier, a plunger :forcing irl caps said pockets, a reciprocating rotating cutter for scoring said Ulis-ies, for forming and presenting seals for application to saiL While tiie caps are in said pockets, a tliircl plunger tor forcing; salici seals into saicl flis'lrs, in enel cntter their operating;

saicl carrier, V

mechanimi comprising a plunger having an operative oonnectionwith the aforesaid plungers and cutter and extending axially through said carrier, and means below said carrier for operating lsaid third plunger.

LA machine for applying seals to bottle caps having cork disks therein, comprising, in combination, a carrier having pockets to receive said bottle ca s, means for pitioning seals for ap ication to the cork disks of said caps W ile they are in said pockets, a plunger lfor forcing said seals into said disks, and a mechanism for operating said plunger and giving it a substantial, dwell while in contact with a seal forced into one of said disks to press the seal firmly thereinto.

8. A machine for applying seals to bottle invasie l caps or the like having, in combination, a horizontal rotary carrier having a plurality of pockets equally spaced about the periphery thereof for receiving bottle caps provided with' cork disks, means for intermittently rotating said carrier, a vertical plunger extending axially through the car rier, means below said carrier for reciprocatino' the plunger in timed relationship to saidI lntermittcnt movements ,of the carrier, mechanism or scoring said cork disks including a'rotary cutter arranged to be reciprocat'ed by said plunger, and additional Vmeans for applying metallic seals to the cork disks so scored, said additional means lncludmg-devlces carrled by sald plunger.

CARL OSCAR BERG.

Images