DEVICE FOR THE PRODUCTION OF A AFTER A DESIRED MOVEMENT LAW RUNNING PROMOTION MOVEMENT

The invention concerns a device for the production of a Förderbewegnng by paragraphs for Fördereinfichtungen, in particular for conveyer systems, running after a desired movement law, with which windowpanes are passed through a malleablizing furnace, with some steplessly adjustable transmission propelled by a driving motor, a thrust crankshaft-and-connecting-rod drive propelling from the steplessly adjustable transmission propelled and for his part the conveyer system and the output speed of the steplessly einsteUbaren transmission as a function of the Kurbelstelluug of the thrust crankshaft-and-connecting-rod drive after the desired Beweguugsgesetz adjusting control equipment is intended, after patent Nr.302895. Such Antriebsvorrichtuugen serves to move the Fördereinrichttmg in such a way that the disks fallen by them do not become lively swinging or swings, so that they separate to them hahenden holding pliers and can to break go. In addition it is difficult to align itself one hinund swinging disk with the bending tools of one to the malleablizing furnace following Biegestatlon. It was already tried to prevent the swings of the disks by use of a promotion device which passes through the disks with a speed process changing after the sine law the malleablizing furnace (German Patentschdft Nr.1061487). For the production of the sinusoidal movement thereby a mechanical device is used, which uses the regularity of the movement of the Kardankreise. It was however shown that also with this drive device the swings of the disks in sufficient measure cannot be prevented. Those are particularly endangered shitting also with senkrechten lowering into the hardening furnace, since the points of the holding pliers did not press themselves thereby yet into the cold windowpanes. An uneven acceleration process is just as unfavorable with the raising of the up-annealed disks from the furnace and with the further transport to above the furnace or in escape with the furnace arranged Biegeoder deterrence station, since hiebei the Klemmkraft of the pliers increased and the pliers points are pressed more deeply into the still soft glass. The impressions can be then starting points for glass breaks with following hardnesses or when late demands. In order to avoid these disadvantages, in the original patent a Antriebsvorfichtung was suggested, with which the conveyer systems of the disks are accelerated without jerking, i.e. by a speed of approximately nuU gradually on the conveying speed and retarded at the end of the movement by paragraphs again gradually on zero. During this device the disks are pushed by paragraphs hanging falling Förderwagen by the furnace by means of a shift car. The drive device contains here the shift car hinund moving Schnbkurbelgetriebe, to whose crankshaft the cam disc is fastened, those that the thrust crankshaft-and-connecting-rod drive upstream, infinitely variable transmissions in such a way steers that the erw4inschte movement without jerking is produced. Those the invention underlying task consists now of building and in such a way training a drive device of the initially mentioned kind more compactly that she can be used also in connection with furnaces, with those the disks of itself over the whole length of the furnace extending, by paragraphs induced Fördereinrichtnng, for example by a roller table or a chain, to be moved. Erflndnngsgemäß is reached this by that on use of a conveyer system extending over the whole length of the furnace for the progressive movement of the hung up windowpanes the drift side of the transmission arrangement is connected with the continuous conveyer system directly, and that those is propelable the steplessly adjustable part of the transmission arrangement over a linkage adjusting cam disc over a reduction gear from the drift side. The outline of the cam disc can exhibit thereby one or more increased parts and one or more recesses, whereby a limit switch is intended, which stops the engine each time, if the scanning organ in the deepest place of the recess is. Preferably the cam disc is trained herzförmig and implements during a feed motion by paragraphs a turn. If it is desired to change the feed length by paragraphs of the conveyer system within certain borders a transmission adjustable by an adjustment organ can be intended between the reduction gear and the cam disc. Although generally the operational sequence of the movement by paragraphs determined by the cam disc goes within a certain period before itself, it can be nevertheless occasionally desirable to change this period. In such a case an adjustable engine, for example a direct current motor or a reqnenzgesteuerter three-phase motor in place of a short circuited rotor engine with firm number of revolutions, preferably used as driving motor, can be used or between the short circuited rotor engine and the stn£enlos adjustable transmission arrangement a if necessary femsteuerbares transmission with variable translation can be arranged. An execution form of the invention is described in the following part of the description on the basis the designs. In the designs is: Fig.1 a schematic opinion of a role of a RolIgangs, on which a windowpane is moved hanging falling rail; Fig.2 a schematic Drau£sicht on the roller table together with the course of motion of the feed motion representing chart; and Fig.3 a plan view on the Antriebsvorrichrung. Fig.1 and 2 show schematically the structure of a usual roller table --10-- with a set of pinchrolls --11--, on their AntriebsweUen of chain wheels --12, 14-- sit, those by chains --16-- is among themselves connected, whereby one of the waves of the new, as a whole also --18-- designated drive device one propels. The windowpane which can be hardened --20-- is by means of pliers --22-- at pendants --24-- (in Fig.1 only one pendant is shown), one fastens itself the parts over several pinchrolls --11-- the roller table extending rail --26-- are. The rails --26-- with the disks hanging on them, in Fig.2 by the furnace not shown is moved to the left, by paragraphs, whereby after each feed procedure on, in Fig.2 the right become free then, roller table section, which can lie outside of the furnace, a Ghsscheibe provided Lanfschiene which can be annealed with one --26-- one touches down, and a rail with a finished annealed disk of a subsequent treatment station, withdrawing from the other end of the furnace, one supplies. In detail the drive device represented in Fig.3 --18-- for the Kollgang one of the driving motor points --30-- propelled, steplessly adjustable Ge driving arrangement --32-- up, those for example from an infinitely variable Ö1getriebe --34-- and one drive off-hurry --36-- with constant reduction to exist can. Dü output shaft --38-- the transmission arrangement --32-- floats over the chain wheels --12 and 14-- the pinchrolls --11-- the roller table --10-- on. Over of the drift end the transmission arrangement --32-- from propelled reduction gear --40-- becomes a herzförmige cam disc --42-- propelled, the linkage part in form of a lever, following over one their outline --44-- the infinitely variable transmission --34-- steers. With the remark example shown at the transmission --34-- linked levers --44-- is at his free end with a cam follower resting against the Scheibenurufang --46-- provided. The lever and/or the role becomes by a feather/spring not shown to the disk --42-- pressed in slightly. With the represented execution form is between cam disc --42-- and Untersetzungsgetdebe --40-- an adjustable transmission --48-- planned, whose will be still described purpose. The impact of the Antdebsvorrichrung --18-- is as follows: With beginning of everyone by engagement of the engine --30-- caused, feed motion by paragraphs of the roller table the cam follower be£mdet itself --46-- in the deepest place --A-- the Vertie£ung --50-- the disk outline. A completely small number of revolutions of the pinchrolls (about 3.5 Umdr/rnin) corresponds to this position of the lever and/or the role. If itself the cam disc --42-- further moved, the lever swivels itself --44-- aUmählich to the left (Fig.3), to it in Fig.3 the circular “increased” part --52-- lies close to the disk. To this position of the lever corresponds the max'1 paints number of revolutions of the pinchrolls --11--, which can amount to for example 86 Umdr/min. During the further turn of the disk --42-- this number of revolutions remains, to at the end of the increased circular part of the levers --44-- again to the right swivelled and the number of revolutions gradually absinlct itself. If the role --46-- again at the point --A-- , becomes the engine lies close --30-- by a limit switch not shown stopped, that at the disk --42-- to be fastened can. The feed length --S-- corresponds to a full revolution of the disk thus here --42--. Naturally also cam discs with several increases and recesses can be used, so that then the feed length --S-- only would correspond to an appropriate partial turn of the disk. It is evident that with the represented outline of the disk --42-- the Geschwindigkeitsverlanf along the way --S-- about in Fig.2 on the right of drawn in curve --b-- it corresponds and that with other Konturlerung the disk of the Bewegnngsablauf follows other speed graphs, for example the curves --A or C--. As mentions already at first, it can be desired in some cases, the feed distance --S--to increase or reduce, for example in order 6%. This becomes by attitude of the adjustable transmission --48--, which has an appropriate switching position and Gleichförmigkeitsgrad, reaches. The adjusting knob of this transmission is also --54-- designation, that course of motion and/or the speed graph is not affected by this attitude. If the period necessary for a feed motion should be variable, this, as previously mentioned, can be caused by use of an adjustable driving motor or on use of an engine with essentially constant number of revolutions by a Regelgetdebe planned between this engine and the transmission arrangement, without thereby the course of motion along the distance --S-- one affects.