Патент USA US2101213код для вставки
Dec. 7, 1937. J, DlcHTER 2,101,213 MACHINE FOR PRODUCING GLASS VESSELS FROM TUBING ' Filed Feb. 16, 1933 I‘ 2 Sheets-Sheet 1 "r5911 eld'ior: JFIKob D;ch'te~r Dec.. 7, 1937. J. DICHTER 2,101,213 macrmm FOR PRODUCING GLASS VESSELS FROM TUBING Filed Feb. 16, 1955 ~ 2 Sheets-Sheet 2 3- w ,Bwen?or: H1113. Piatented Dec. 7, 1&3? mm, was WW crew-E1 momma Foa raonncrnc crass VESSELS > anon roams . Jakob Dichter, Berlin, Germany ' Application February 16, 1933, Serial No. 657,084 In Germany May 2, I932 , 7 19 _Claims. ' (oi. ia-r) This invention relates to machines for produc ing glass vessels from tubing, and more particu— larly to machines in which a section of tubing is heated until-soft and is then blown to shape in 5 a ,mold. _ . ' ' ' The shaping o the glass vessels from tubes can also be effected at the ends of said tubes,’ but the present invention 'is concerned with ma chines in which a length of tubing is gripped at 10 each end, the middle portion being heated until soft-and then being drawn out and blown to the required shape. When this processv in its simple iliary devices are involved and the requisite ma nipulations for the shaping are performed by the operator. Further, these arrangements have for their subject no method, nor have they as basis the carrying out of shapings with diame- 5 terssrnaller than the original tube. The machine shown and herein described con stitutes only an embodiment by way of example, and may equally wellpbe horizontally arranged. ' It is also in no way limited to operation on long 10 ‘glass tubes only but measured tube sections can also be operated upon. > One form of machine according to the inven form is employed, great di?iculty is experienced ' tion is illustrated in the accompanying drawings, _ in producing a uniform product as the thickness 15 and diameter of the tubing always vary however carefully thetubing is selected, and any'faults of thisklnd are greatly exaggerated in the ?n - ished product. 9 , It is an object, therefore, of the present inven tion to provide an improved-form of machine in which this di?iculty is overcome. In a machine for producing glass vessels from glass tubes in ‘which tubes to be workedlare held and rotated by oppositely disposed holding devices, and in in which: Figure l is a side elevation; Figure 2 is a plan corresponding to Figure 1; ‘Figure 3 is a side ‘elevation of the blowing de- ' vice; _ " , Figure 4 is a front elevation corresponding to 20 Figure 3; , ‘ Figure 5 is aside elevation showing the use of the mold in blowing the round base; ' Figure 6 shows diagrammatically the sequence of operations for preparing ampoules with round 25 25 whichthe shaping is eifected at a point between the holding devices,‘ according to the present in vention a mold is provided at said point, the con stricted part of the glass being blown out until it contacts with the mold, which latter is dis-v 30 posed between the holding devices. The machine according to the invention may be readily adapt .ed for shaping, various kinds of glass vessels, in bases, - , - Figure '7 illustrates diagrammatically the proc esses employed in producing a screw-neck ves ' Se], and Figure 8 is an enlarged partial view of the con- 3‘ stricting device. , The machine shown is one having eight pairs of holding devices arranged in circular forma eluding ampoules for containing chemical and tionabout a vertical central axis, said holding , other preparations, such ampoules being pro devices being advanced step by step and pre- 35 35‘ vided with a constricted neck portion which is , sented to the individual working stages. Ob arranged to be readily and cleanly broken off for viously the same working arrangement could be obtaining access 15017118 contents of the ampoule. stationary withoutthe holding devices rotating In order to more easily provide the constricted » about the central axis, the lower holding device sections .in the mold, devices .are provided which in this case being merely raised and lowered by 40 positively press in or remove the shoulders be the cam ring. ' D 4 O cause these mostly extend conically duringthe In the drawings, ‘the vertical central shaft 3 drawing. It is immaterial whether this removal is secured in the bearing flange 2 on the base or the shoulder is e?ected before or after the :plate I._ The spaced discs 4, 4’ are‘ rigidly con’ stem is drawn. by cross-members 5, 5' so that they can ,45 Further a device- is provided for introducing nected be rotated about the shaft 3. The main shaft _ compressed air for blowing out the constriction in the mold or for providing the closed end with 6 derives its drive from the driving shaft, so that a. spherical base. In order .to be able to prepare the feed disc ‘I and locking disc 8 are rotated this hemispherical base also as uniformly as by the bevel gears 9, 9'. On each rotation of 50 possible, a hemispherical mold is used in which the shaft 6 and the discs ‘I and 8, the disc l0 and the discs 5, 4’ are moved through an angle 01 O the soft closed end is blown out. ' _ Arrangements have already been disclosed in of 45°. The bearings It for the clamping chucks which'glass tubes are clamped at both ends in I! are secured to the disc t’. The lower clamp holding devices and in’ which the molding section ing chucks it are mounted in sliding bearings 55 55 lies between the holding devices, but only aux ' a 7 2,101,213 M’ which can beraised and lowered on‘ two par; working period ' the glass tube is fed a de?nite allel guide bars 94 secured to the discs ll, 4'. The clamping chucks i2, i3 derive their drive length. The air pipe 5! is co nected with an upper from the main shaft '6 by way of the gear wheels valve plate SBdistributin blast heads the air which passes through totheall supply pipe 59, l5, l6, l7, l8, IS. The gear wheel i6 is displace ably arranged on the shaft 2d’ provided with a equipped with a control valve, and over the lower valve plate 60. In addition, the instant of blowing in air is determined by this arrange ment. . The mode of operation of the machine for This interruption is eifected in that the lever 22 releases the connection of the claw ‘ 10 manufacturing ampoules with coupling 2! by way of the lever 23 which is con nected with a cam by means of a linkage, so that the shaft 20 stands still. ‘ . The lower chucks i3 slide: on the cam track ' 25 by means of bolts 28 provided with rollers at their ends, and the cam track is shaped in ac // 20 cordance with the drawing motion in that de? nite parts thereof fall ‘or rise, or else are raised and‘ lowered. - 1 20 In Figure 1, position I, two constricting levers 26, 26' are between the chucks and execute a motion about the shaft 2'? towards the already 25 softened glass tube 28 and remove this‘ appro priately at the shoulders. This motion ‘is effected by the cam 28 and levers 3d, 30'. The ' 25 depth of constriction is controlled by the stop screws 3! and Bi’; ‘2.0 . . K Obviously this arrangement may be of such con?guration that the heated section is con 30 stricted over its entire breadth or else that, in addition to'the two shoulders, further constric '35 tions contained in the mold are preformed‘. This preforming operation may also occur after drawing the stem. - In position II, Figure 1, is arranged the mold 82.consisting of two mold jaws embracing the 40 section to be shaped. This mold is arranged on ' point is desirable. After the mold has been closed, the air valve of the blast device is opened and the stem blown out until it is. applied against the wall of the > mold. In accordance with the con?guration of ing and closing of the mold jaws is eifected by , the mold, the glass tube may be kept rotating 40 way of the cams 34, the linkage 35, the bevel during blowing or else rotation may be inter gear-s38, 36', the gear wheel 31 which moves rupted by meansmf the clutch provided for this the two toothed rods 88, 38', to which the mold purpose. A mark for the point at which they 45 jaws are secured, in opposite directions. The ampoule is subsequently to be opened is included mold carrier as is displaceable in the slide 46. in the ‘mold, and is ‘molded simultaneously for the shaft 33 for vertical adjustment. The open horizontally with respect to the glass tube by instance in the form of a widened or constricted means or the rack bar “, the ‘gear wheel 42,'the _ portion. bevel gears 43, 43', the linkage 44 and cam, 45.1 A point of separation intended for the opening As shown in Figures 3 and ‘4 a lower carrying » may however be eifected after the blowing e. g. by pressing in a. small depression by means of ring 66 to whichpeight part bearings 41 are se cured, is provided on the upper disc. In these ‘ a device such as shown in Figure 1.‘ It is advan bearings are supported guide'bars ,48, 48' which at the upper end are connected with the ring 49. 55 The blast head carrier 50, the upper end of which tageous, after the heating which preferably pre cedes the pressing operation, to blow air from the outside against the depressed portion simul is connected by a rubber hose to the airsupplypipe . taneously with the molding of the depression or 5| and the lower end of which is equipped with directly thereafter, because in this way the sur a blast pipe52 which turns in _'the blast head \ face of the glass is hardened at this point which carrier 50, slides on the guide bars 48, 48'. A favours the ready breaking-off of the stem with ' short length of rubber hose 53' connects the blast out splintering.In the working position f the upper end of the pipe 52 with the glass tube at the lower end of stem is separated from the glass tube and the _ the glass tube during the heating is effected by the clamping glass tube is simultaneously closed in that a chuck a!‘ d the blast pipe is carriedalong by the burner heats the glass at the point of separation 65 glass tube duringrotation. _ ' and the lower chucks move downwardly.‘ While The blast head carrier 50 is connected to a the complete ampoule in‘the' lower chuck slides 65 cord 56 which passes over aiower pulley 55 and into a collecting container, 3. hemi-spherical mold an upper “pulley 55'. At the lower end, the-lower is brought to bear against the closed end of the tube in the working , position g and the base is pulley 55 has a stub shaft 56 covered with rub blown out by blowing in‘ air which is supplied in the’sam'e' manner as in position e.‘ If glass vessels with ?at bottoms are to be 70 produced then the blowing in of air is omitted e and the base is merely refused. ' Obviously the round bottom may be produced without the use of a mold. ' ' 3, archers means for heating the glass tube intermediate After blowing" thebottom in'the, mold the its ends, means for forming a pair of constric tions in the heated portion of the glass tube, -. glass tube is advanced by a corresponding length and the working process recommences. , said constrictions being spaced apart longi ' On the advance of the glasstube :the base tudinally of the glass tube, and means for re mold, which in the case of ' a ?at bottom may ‘consist merely of a flat plate, descends by .the length of the feed stroke whereby a smooth slid- j ing forward of the glass tube -is attained, on which bears the weight of .the blast device con-‘ nect'ed with the upper end of the tube. ’ ducing the cross sectional area of the glass tube between the said constrictions. '5.‘In a machine for producing glass vessels from glass tubes, a pair‘ of axially aligned hold 10 ing devices .for a, glass tube, means for heating thetube between the holding devices, means for Obviously two points of a tube may be heated -formingfa pair of constrictions in the tube be and molded simultaneously and‘ the‘ stem pro tween the holding devices, said constrictions be- '_ duced may be fused o? in the middle instead ing spaced apart longitudinally of the tube, and means for‘ moving said holding devices relative of at the end. ' ' , The glass ‘body may bevcut off in the molding to each other to reduce the cross sectional area 15 position and the ‘cut end sealed during the blow of the tube between the constrictions. ' ing-in or air, - ' Y 6. In a machine vfor producing glass vessels ' from glass tubes, means. for heating a glass tube 20 ends, a pair of tools adapted - The tube may also be closed at the upper end ' and air blown in from the lower open end. intermediate its for engagement with the heated portion of the While‘ the mode of operation of the present 20 machine has been shown primarily .inits appli tube to form a pair of constrictions. in the tube, cation to glass vessels in which a portion of the said constrictions being spaced apart longitudir tube'isconstricted, it may'of ,course, also be nally of the tube, and means for reducing the used for shaping glass vessels of larger diameter ' the tube‘ between the said . cross'se'ctional area of than the original tube. 25 Equally one, end of the tube onlymay be. pre constrictions. ‘ ~ I v ., I _ 7. In a machine for producing glass vessels viously constricted for introduction ‘into ,the ' from glass tubes, a pair. of- axially aligned hold mold and solely this constricted section blown ing devices for a glass‘ tube, means for heating out in a mo1d,_,e. g. if the separation of the am-' the glass tube between the holding devices‘, a pair of constricting levers, means for moving said constricting levers into engagement with the chuck as shownlin Figure 6 f. ~ . heated portion 'of the glass tube to form a pair Iwish it to be understood that I do ‘not desire" of constrictions in the tube, said constrictions be-_ poule body occurs beneath the lower clamping chuck-instead of beneath the upper clamping so to be limited to the exact details of construction , and described ‘for obvious modifications as shown will occur to a person skilled in the-art. What I claim is: , 1. A machine for producing glass vessels from ' glass'tubes ing spaced apart longitudinally of the glass tube, and means for relatively moving said holding devices away from eac, other to reduce the cross sectional area of the glass tube between the said 40 comprising in combination, pairs of ,constrictions. 8. In a machine ‘for producing glass vessels axially superposed tube holders arranged in a_' .40~circle, means ‘for rotating said holders about from a length of glass tubing, a pair of holders adapted to hold the length of glass tubing, means their axes‘, means for moving'said pairs of hold providing for movement of ‘the glass tubing 'ers about their common centre, concentrically through one of said holders, a ‘blow head adapt distributed means for, heating the glass vtubes between‘ the holders of '. each pair, means for forming spaced constrictions in'v each tube be ed for engagement with the‘ free open end‘ of the length of glass tubing, means providing for movement of, the blow head with the length of glass tubing upon movement of the latter through - tween ‘the holders'and means for blowing out and - _ for molding each tube between the constrictions - one of the holders, and means for braking the . movement of the blow 'head. ' 2, A machine for producing glass vessels from comprising in combination, pairs of thereof. . ' ‘ ' ' ~ 9. In a machine for'producing glass vessels from a length of glass tubing, a‘ pair ‘of axially 50 aglass'tubes _ axially superposed tube holders arranged’ in a aligned superposedtube holders adapted to hold ‘ circle, means for rotating said holders about their _ a length of glass tubing, means for heating the -axes, means for moving said pairs of holders about their common centre, concentrically dis glass tubing between the said holders, means for. blowing out and for shaping the heated part of tween the holders of each pair and .means for the tube between the holders, a blowing head in v line with the holders, means for varying the ver 55 tributed means vfor heating the glass. tubes be constricting, for blowing out and for» molding‘ tical position of, the blowing head, and means 60 3.v A machinefor producing glass vessels from. for braking the vertical movement of the blow glass tubes comprising in combination, pairs of 10. In a machine ior producing glass vessels "the heated part. of a tube vbet'vveei'i the holders.‘ "60 ing head.~ . ' ‘ - - ‘ axially superposed tube holders arranged in a from a length of glass tubing, a pair-of super circle, means ‘for rotating‘ said .holders about axially aligned tube holders adapted to 65 their axes, means for moving said pairs or hold > i posed hold the length» of glass tubing, means for heat ers about their~ common centre, concentrically‘ 65 distributed means for heating the glass‘ tubes ing the length, of glass tubing between the hold ‘ers, a blower head engageable with one end off between the holders of each pair, means for blow ing out and for molding the heated part of a the length of glass tubing for supplying an un tube between the holders,v a blowing head; in der pressure to the interior of the glass tubing to 70 line with a pair’ of holders, means" for varying - shape the heated portion thereof, means pro-v viding for movement of the length Oi glass tub the vertical position of- said blower head and au ing through the ‘upperot the‘tube holders, means‘ tomatically active means for braking the ver - tical movement of said head. ~, ~ _ providing for vertical movement of the blower 4.'In a machine for producing glass vessels head upon movement of the length ‘of glass tub from glass tubes, means for holding a glass tube, I 76 4 I 2,101,213 ing, and friction means! for braking the down Ward movement of the blower head. 11, In a machine for producing glass vessels from glass tubes, a pair of holders adapted to hold a glass tube, means for heating the glass tube between the holders, a mold adapted to en close the heated portion of the glass tube and meansior supplying a gas under pressure to the interior of the glass tube while the heated por tion thereof'is enclosed by the mold to cause the from a length of glass tubing, a pair of holders adapted to hold the length of glass tubing, means for heating the length of glass tubing between the holders, means for blowing out and shaping the heated portion of the length of glass tubing between the holders, means for heating the length 5 of glass tubing between the shaped portion there of and the remainder of the length of glass tubing to sever the shaped portion of the glass tubing . from the remainder thereof and to seal the end 10 a mold engageable ‘ 12. In a machine for producing glass vessels‘, with the sealed end of the length of glass tubing, heated portion of the glass tube to conform to the shape of the mold. ~ - L of the length of glass tubing, from glass tubes, a pair of holders adapted to ' and means for admitting air under pressure to 15 hold a glass tube, means for heating the glass the interior of the length of glass tubing to blow tube between the holders, means provgilng for movement of the holders away from eac other to reduce the cross sectional area of the heated portion of the tube, a mold adapted to enclose 2.0 the heated constricted portion oi the glass tube, and means for supplying a gas under pressure to the interior of the glass tube to blow the heated constricted portion thereof into engagement with the mold. 25. 4 ' 13. In a machine for producing glass vessels from glass tubes, a pair of holders adapted to hold a glass tube, means for heating the glass tube between the holders, a pair of tools adapted to be moved into engagement with the heated por 30 tion ofv the glass tube to form a pair of constric tions therein, the constrictions being spaced apart longitudinally of the glass tube, means for reduc the sealed end thereof into engagement with the 15 ' > said mold. 16. ‘In a machine for producing glass vessels from glass tubes, means for holding a glass tube, means for heatingthe glass tube intermediate its ends, and means for constricting, for blowing out 20 and for molding the heated part of the tube. 17. In a machine for producing glass vessels Y from glass tubes, ‘means for holding a glass tube, means for heating the glass tube intermediate its ends, means for forming a pair of constrictions in the heated portion of the glass tube, said con 25 strictions being spaced apart longitudinally of the glass tube, andrmeans for shaping the glass tube between the said constrictions’. 18. .In a machine for producing glass vessels 30 from glass tubes, means for holding a glass tube, means for moving’ said holding means along a ing the cross sectional area of the glass tube be tween the constrictions, a mold adapted to en " de?nite path, means for heating the glass tube intermediate its ends, a pair of tools mounted for close the portion of the glass tube which is re movement toward and away from the glass tube 'duced in cross sectional area, and means for ad mitting a gas under pressure to the interior of at one point in its path of movement, said tools as the glass tube to blow the reduced portion thereof being adapted to form spaced apart constrictions in the glass tube, and means for moving said tools into engagement with the mold. 40 14. In a machine for producing glass vessels‘ into operative engagement with the glass tube from a length of glass tubing, a pair of holders when the glass tube reaches a. position adjacent ‘ adapted to hold the length of glass tubing, means the said tools. for heating the length of glass tubing between , 19. In a machine for producing glass vessels the holders, means for shaping the heated portion from‘ glass tubes, means for holding a glass tube, 45 of the length of glass tubing, means'for severing means for moving said holding means along a the shaped portion of the length of glass tubing de?nite path, a blow head adapted ‘for engage from the remainder of the length of glass tubing ment with the free open end of the glass tube at 45 and for sealing the end of the length of glass tub one point in the path of movement of the glass ing, a mold movable into engagement with the tube, and means controlled by the movement of 50 sealed end of the length of ‘glass tubing, and the holding means for controlling the engage means for shaping the sealed end of the length of ‘ment-of the blow head with .the length of glass 50 glass tubing in the said mold. tubing. ' , 15. In a machine for producing glass vessels JAKOB DICI-I'IER.