US1348365A - Glass-eormina - Google Patents

Description

R. LA FRANCE.

GLASS FORMING MACHINE. APPLiCATION FILED SEPTA, 191? f1 3%, m 5 Pamantad Aug. 3 11.92%

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JRx LA FRANCE.

GLASS FORMING MACHINE.

APPLICATION FILED SEPT. 4 19171 Patented Aug. 3 W241i 5 SHEETS-SHEET Z,

INK/EDIE UH I R. LA FRANCE.

GLASS FORMING MACHINE.

APPLICATION FILED SEPT. 4. 1917 Patented Aug. 3, 1920.,

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INVENT [1R R. LA FRANCE.

GLASS FORMING MACHINE.

APPLICATION FILED SEPT.4.1917.

1,848,365, Patented Aug. 3, 192 0.

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UNITED STATES PATE OFFICE;

nrcnanntannllncn, or TOLEDO, OHIO, assieivon To THE owsns BOTTLE MACHINE O PAN or renew, omo, A CORPORATION or OHIO.

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To aZZw/tom it mag/concernw Be it known that I, RICHARD LA FRANCE,

forming bottles or other glass articles which are blown or otherwlse formed 1n molds onthe'machine. An object of the invention is to provide an improved mechanism for holding bottles or other articles during the open ing of the "finishing molds and controlling said articles in thelr discharge from the molds. The invention 1Sl1B1e111 Sl1OW11 as embodied in an automatic bottle blowing machine of the F Owens type, particularly designed forfmaking carboys or other hottles or containers of large capacity; Certain i'eatures oi the invention are particularly adapted for use in connection withmachines for making such Ware. p Other objects of the invention; and the exact nature thereof will appear hereinafter. In theaceompanying drawings Figure 1 is a sectional elevation o'l a por tion of the machine at therighthand side, of the verticalcenterrline. j' v Flg. 2 isa' part' sect'lonal elevat on showingan open blow mold andassociated mechamsin. a, i

- Fig.3 isa part sectional plan viewshowing the knockout device, the blow; mold and its operating means. 1

.Fig. 4 is a part sectional elevationoli the same.

plan view of mechal ig. [6 is a sectional Figs}? to 12 inclusive are diagrammatic .views of: the fknock-jont device, Figs. 7, 9

and llbeingplan views of the armat successive steps in its operatiolnFigs. S, 1.0 and 12 being elevation views with the parts positioned asin Figs. 7, 9and 11 respectively.

Fig. 13 is valves. I U

i Fig. 14 is sectional elevation of aivalve and its operating cam. p a

The machine frame comprises a central non-rotating column 31 made in sections, andon which ismounted the mainzrotating frame 32; The -frame32runs'fon bearing rolls 33 and is driven through a ring gear Specification of Letters Patent.

an elevation view of a bank of l GLASS-FORMING MACHINE.

Batented'Aug'. 3, 1920.

' AppIication filed September-4, 1917., Serial No. 189,458.

connected to any suitable source of power. On the rotating frame are mounted a number of units or mechanisms, preferably archine,and each comprising a blank-mold, a

The blanlmnolds 35 (Fig. 1) are arranged ranged at equal. intervals around the maabove the level of the gathering tank 36 i from which the glass is drawn, so that each blank-mold isbrought over the tank once during a complete rotation of the machine.

In order to dip the molds into the molten glass for gathering a charge as they pass over the tank, the molds are mounted on in dividual dipping heads or frames 37. The vertical movement of the dipping heads is con trolled by a stationary cam track 38 in whichruns a cam roll 39 connected through a link 40 to the vertical arm of a bellcrank 41,-p1voted at d2 to the frame 32. The horizontal arm of the bell crank-is connected at 43 to a link 4:4: attached to an adjusting rod 4-5 on the clipping head. f v

The cam track 38 is shaped to draw the cam roll 39 toward the center of the machine as the blank mold movesover the tank, and thereby lower the mold to receive a charge 1 glass The dipping head iscounter-b al-V ancedby a Weight l6 connected through a lever 47 to the link 44. The counter-weight is supplemented V by a counterbalancing spring 48. The weights 4e extend downward within the hollow stationary column ,31 and revolve with the main frame 32;

The glass is drawn by suction or differential pressure intothe gathering mold to form the body blank mold 35 anda neckmold 4 19,

each consisting of two halves or sections mounted to swing horizontally about a common pivot pin 50. r i

The means for operatingthe body blank mold 35 comprises a piston motor 51 operated by compressed air or steam. The motor drives a rack 52 connected through suitable mechanism to open andclose themold sections.' v V Theneck mold l9 is opened and closed by a motor 58. V

A core or plunger 63 for forming the nected to a plunger rod 6 5 to the upper end initial blow opening in the ,parison, is conof which is'attached the piston of an operating motor 66. When the parison mold ism gathering, position, (Fig. 1), the air is exhaust'ed fromthe mold cavity through exhaust passages leading through the suction and blowing head 67, the latter being'in communication with a suitable vacuum to the plunger rod is-thereby moved upward and rocks a toothed segment 69 which meshes with said rack. The segment 69 is pivoted at 70 and'is provided with a cam groove which engages a wrist on a'lever 72 to operate a slide valve 73 connected to said lever.

The cam 71 is so formed that as the plunger is withdrawn, the valve 73 is slid over the opening in the head 67.

, About the time the plunger is withdrawn,

or shortly before, the motor 51 operates to separate the body blank mold sections 35, leaving the blank suspended from the neck mold. The blow mold is also moved up (as hereinafter described) to receive the blank i'and inclose the same immediately after the blank mold opens.

I then admitted through the valve 7 3 and head Air under pressure is 67 to the openingform'ed in the blank by the core 63, and the bottlefis blown to itsfinal shape. 7 r

i As the blank'mold is Withdrawn from the gathering tank, a suitable knife or cutbfi (not shown) is operated to sever the blank in the 'mold from the glass in the tank.

Each of the blow molds 97 is carried on a frame 98 mounted for vertical movement in guideways 99 on the main rotating frame 32. The blow mold while idle travels in a horizontalpath below the tank 36. After ablank mold with its gather of glass, passes beyond the tank, the cooperating blow mold is lifted to the plane of the blank mold to receive the blank. For this purpose air under pressure is admitted beneath the piston' 100 of a motor 101 mounted on a bracket 102 on the frame 32.

'A bottom plate 103 provides asupport for the blank while the latter is suspended from the neck mold and also provides a bottom for the blow. mold. The bottom plate is carried at the upper end of a piston IOCllOt of a motor'l05 mountedon the bracket 102. Pressure is admitted beneath the: piston of the 1notor105toilift the bottom plate 103 and cause it to engage with the bottom of the blank 'mold'and blank therein, just after the cut-off has been withdrawnand before the blank mold opens.

weight.

V The blow mold 97 is made in sections mounted to swing on a vertical pivot rod 106 on the frame 98, and while open (Figs.

2 and 3) is moved upward between the blank and the blank mold sections just after the latter have opened. The blank is at this time suspended from the neck mold 19, the bottom of the blank resting on the bottom plate 103. The blow mold is closed by motors 107 (see Fig. 1) on the frame 98. Each motor is connected to a mold section through gearing comprising a rack 108 at tached to the motor piston and meshing with 'a gear segment 109 on a rock-shaft 110 to which is secured a rock-arm 111 connected through a link 112 to the mold section. A pair of intermeshing gears 212 insure equal movement of the two mold sections, and may also be used if desired to transmit motion from one rack to the other so that a single motor 107 will operate both mold sections.

When the blank is inclosed in the blow mold, and the plunger 63 has been withdrawn and the slide valve 73 advanced airunder pressure is admitted and the parison blown to form the bottle B. After the .bottle is blown, the neck mold is opened by its motor 58, leaving the bottle free to be lowered with the finishing mold, which is now carried downward by admitting pressure above the piston 100. The mold bottom is lowered with the mold by admitting pressure above the piston of its motor 105.

The mechanism for engaging the top of the bottle or other blown article and holding it during the opening of the finishing mold, will now be described. This mechanism comprises an arm 150 (known in the trade as a knock-out arm) which normally 7 extends at one side of the mold position but is arranged to swing horizontally to extend over the mold and also has a short vertical movement bodily into and out of contact with the bottle. Said arm also has a vertical swinging movement about its pivot 151 for a purpose which will be described later. The arm and its actuating mechanism are mounted on the blow mold frame 98 to move up and down with the blow mold. Said mechanism is also adjustable vertically relative to the blow mold by rotating a hand wheel 152 carried by a sleeve 153 threaded ton rod 158, the latter extending upwardly through a hollow cylindrical portion 159 of the bracket 155 and through a cylindrical carrier 160, on which the arm 150 is mounted. Thecarrier 160 is slidable up and down in a'sleeve or cylindrical bearing 161 on the tion being imparted to the carrier 160 by means of a pin 166 carried bythe piston rod and working in a vertical slot 167 in the carrier 160. i

The arm 150 carries a head 169 to which is clamped a disk 170 formedof asbestos or other suitable material for engaging the neck end of thecarboy. The head 169 "can yield upwardly against the tension of a spring 173 and is-also adjustable vertically with its carrying member 171, the letter being clamped in its adjusted position in the split end'ofthearm by a clamping bolt 172. The operation ofthe holding arm 150 is as follows i Normally said arm is tilted downward to the Fig. 8 position to permitthe arm to clear the bottom'176 of the'tankand also to clear a portion of the neck mold "mechanism. The arm is held in such tilted position by the piston rod 158 which at this time is in its uppermost position. After the carboy B is blown, the finishing mold with the carboy in it moves downward as before described.

The "knock-out mechanism being mounted on the mold carrier frame 98 moves down ward with the mold. As soon a'sthecarrier has moved away from the blowing head,

compressed air is admitted through pipe 175 8) to the upper end ofthe-oylin the initial downward movement the piston 1 rod is withdrawn fromthe arm 150 so that i the spring 162 swings said arm upward to i e a the Fig. 10 position. During this initial movement the wrist pin 16a moves in. a vertical portion of the camlslot. its the piston continues itsdownward movement, the wrist is moved througlrthe spiral intermediate portion ofthe slot so thatthe piston rod is given aspiral movement, thereby swinging the arm150 laterally and bringing thehead 169 over the bottle in the finishing mold. The pin 166 engages the bottom of the slot 167 before the piston reaches the bottom of its cylinder, so that during the final downward movement of the piston the sleeve 160 is pulled downward, compressing the spring 177 and moving'the disk 170 downward against the neck of the bottle. The lower end of the cam slot is also vertical so that the arm 150moves vertically downward. The disk holds the bottle until the finishing mold has opened wide enough to clear the bottle. The valve controlling the IDOlJOI'156 is then reversed, permitting air pressure beneath the piston, which as it rises, permits the spring 17 7 to lift the sleeve 160, thus raising the contact disk 170 away from, the bottle. The wrist pin 159 then enters the spiral portion of the cam and swings the arm laterally away from the finishing mold. The bottle is now free to be removed by an attendant. The piston continues its upward movement to the end of its stroke, the latter part of which causes the piston rod to re'e'ngage the swinging arm 150 and tilt it downwardly where it is held until it commences another cycle of operations.

Each of the several piston motors associated with a bottle forming unit is controlled by an individual valve such as shown in Fig. 14, and the valves for-each. unit are preferably rouped together as indicated in Fig. '13 1 his group comprises a valve a controlling the neck mold operating motor 58, a valve Z) forthe blank mold motor 51, a valve cfor'the plunger motor 66,'a valve cl for the finishing mold motors 107 (Fig. 3') which actuate the finishing mold sections, a valve 6 for the motor 156 (Fig. 41) which operates the knock-out arm 150, a valve f for the cut-ofi motor not shown, a valve forthe motor 101 ('Fig. 1) which lifts the finishing mold, and a valve 7t for the motor 105 which operates the mold bottom plate 103. Air under pressure for operating the motors may "be supplied through a pressure *pipe 116 (Fig. 13) from which it is distributed through branch pipes 116' to the several valves which control the supply of compressed air to their respective motors.

The valves are preferably substantially alike in construction, which maybe as shown in Fig. 1 1. Compressed air is admitted from the supply pipe 116 and abrancjh pipe 116 to an intermediate port or chamber1'17 in the valve casing, which port is brought into "communicatlon alternatively with the end ports 118 and 119 by the movement of the valve piston 120. The ports 1-18 and 119 communicate respectively with the opposite *endso'f the corresponding motor cylinder.

Thus, as shown in Fig. 14:, the valve piston 120 is in positionto open'the port 118 tothe port 117 so that compressed air is supplied to atmospheric 122-;

.asindicated in Fig. 1.

stood that the cams 125 for operating the valves are so positioned and formed that the admitting compressed air to the opposite end of the motor cylinder. At the same time communication between the port 119 and the outside air through passage 121 iscut oil, by valve l20,-and the port 118 opened pressure through passage The Valve stem 123carrics a cam roll 124 running in a guideway 111.8; cam plate:125. Each of the cams 125 for the several valves is mounted on {the stationary column 81,

the cams being. secured; in grooves. 126 formed in said column one above another,

It will be underseveral operations controlled thereby take place in the proper sequence and at the require'd time. The method of mounting. the

v vention,

cams 125 permits each cam to be readily and accurately ad usted or replaced by another :cam without interference: withthe other cams. [It will be understood that the several 7 sets of valves are, all controlled by asingle set of cams.

Variations may be resorted to without departingfrom the spirit and scope ofmy inlVhatI claim is we :1. The combination with a finishing mold,

of a holding device to engage an article in the mold. and hold it during the opening of l the mold, a piston motor, and means operated and controlled thereby to move the holding device laterally to a position over said article during aportion of the piston stroke and'downward mto engagement with said article during another portion 'otsaid 3. The combination with a finishing mold,

of a holdingarm to engage an article in I i themold and hold it during the opening of said carrier while the mold, a carrier on which the arm is mounted to swing up and down, means to rotate said carrier toswing the arm laterally, means for raising and lowering the carrierto move the arm up and down bodily, and means to swing said arm downward on positioned laterallyoi the mold.

4. "The combination with a mold, of a holding arm to [engage an article in the mold and hold it .duringthe opening of the mold,- a piston motor, andmeans actuated thereby to impart an up or down movement mold, ,a motor for actuating said arm comprising a. piston and piston rod, means actufated by themotor to swing said arm laterally; about the axis of the piston rod during .a portion of the piston stroke to position said arm over the mold, and means operable during another portion of the piston stroke to move said arm downward to engage said article.

6. The combination with a finishing mold. of a holding arm to engage an article in the mold and hold it during the opening oi the mold, a carrier on which said arm is mounted, a piston motor comprising a piston rod, connections between piston rod and carrier for moving the latter with the rod during a portion of its stroke, and means for rotating said carrier during another portion of the piston stroke.

7. The combination with a finishing mold, of a holding arm to engage an article in the mold and hold it during the opening of: the mold, a carrier on which said arm is mounted, a piston motor comprising a piston rod, connections between piston rod and carrier for moving the latter with the rod during a portion of its stroke. and means for rotating said piston rod and carrier during another portion of the piston stroke.

8. The combination with a finishing mold, of a holding arm to engage an article in the mold and hold it during the opening of the mold, a carrier on which said arm is mounted, a piston motor comprising a piston rod, connections between piston rod and car-- rier for moving the latter with the rod during'a portion of its stroke, a cam, and connections between said cam and carrier for rotating the latter during a portion oi? the piston stroke, to swing said arm laterally toward or from a position over the mold.

9. The combination with a finishin mold, of a holding arm to engage an article in the mold and hold it during the opening of the mold, a carrier on which said arm is mounted, a piston motor comprising a piston rod, connections between piston rod and carrier for moving the latter with the rod during a portion of its stroke. means for rotating said carrier during another portion of the piston stroke, and means actuated by the motor for tilting said arm.

10. In a glass forming machine, the combination of an arm, a head thereon for engaging and holding an article formed on said machine, a piston motor comprising a piston rod movable up and down, a carrier on which said arm is mounted, and a lost motion connection between the piston rod and carrier tor imparting an up or down movement to the carrier during a portion of the piston stroke, and permitting upandcarrier on which said arm is mounted, said carrier arranged for bodily movement lengthwise of the motor piston and rotative 'movement about the axis of the pistommeans operated by the motor to rotate said carr er and swing said arm laterally during apor tionot the piston stroke, and means to 0on nect the carrier with the piston for bodily movement therewith during another portion of the piston stroke.

12. The combination in a glass forming machine, of an arm to engage articles formed on the machine, a piston motor comprising a piston rod, a carrier on which the arm is supported, said carrier slidableon said rod, a slot and pin connection between the carrier and rod for moving the carrier with said rod during a portion of the piston stroke and permitting the rod to move lengthwise in the carrier during another portion of its stroke, and a cam arranged to rotate the piston rod and carrier while said rod moves lengthwise in said carrier.

13. The combination in a glass forming machine, of a carrier, an arm extending laterally therefrom for holding an article formed on the machine, a piston motor comprising an upwardly extending piston rod on which the carrier is mounted for move, ment lengthwise of the rod, saidcarriei' haw ing a limited up and down movement, a spring to hold the carrier in its upward position, a slot and'pin connection between the piston rod and carrier, a cam arranged to rotate the piston rod during a portion of its downward stroke, and thereby rotate said carrier and arm to swing the arm laterally to a position over the article to be held, the piston being operable through said slot and pin connection to move the carrier downward against the tension of said spring during the final portion of the piston stroke and thereby move the arm downward to engage the said article.

14;. The combination in a glass forming machine, of a carrier, an arm extending laterally therefrom' for holding an article formed 011 the machine, a piston motor comprising an upwardly extending piston rod on which the carrier is mounted for movement lengthwise of the rod, said carrier having a limited up and down movement, a spring to hold the carrier in its upward position, a slot and pin connection-between the piston rod and carrier, a cam arranged to rotate the piston rod during a portion of its downward stroke, and thereby rotate said carr er and arm to swing the arm laterally to a position over the article to be held, the

piston being operable through said slot and pin connection. to move the carrier downward against the tension of said spring during the final'portion of the piston stroke andthere by move the arm downward to engage the said article, said arm being pivoted to swing up and down on its carrier, the piston rod being. operative during its up stroke, to

swing said arm downward.

15. The combii'iation with a finishing mold, of a holding arm to engage an article in the mold and hold it during the opening of: said mold, automatic means to move the arm toward and from said article into and out of position to hold the article, and means to swing the arm transversely into and out of position over the article without movement in said first mentioned direction.

7 16. The combination with a finishing mold, of a holding arm to engage an article in the mold and hold it duringthe openingoperating means between the motor piston and said arm for moving the latter bodily to and from said article during a portion of the piston stroke and including a cam for swinging the arm laterally during another portion of the piston stroke without movement of said arm in the direction of said RI OHARD LA FRANCE.

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