SE126423C1

SE126423C1 -

Info

Publication number: SE126423C1
Authority: SE
Publication date: 1949-01-01

Description

Uppfinnare: W. P. Scharr. Inventor: W. P. Scharr.

Prioritet begard frdn den 11 juni 1948 (Tyska riled). Priority requested from 11 June 1948 (German riled).

I halkortsmaskiner och andra med kort arbetande maskiner uttagas korten i tur och ordning ett och ett ur en forradsbehallare och tillforas en avkannings- eller analyseringsanordning. Uttagningen av korten sker med tillhj alp av en fram- och atergaende gripare, vilken svanger i kortens transportriktning och vid varje framatslag griper ett kort vid dess bakre kant (i rorelseriktningen sett) och utfor det ur behallaren. Harvid kommer kortet med sin frOinre kant in i omradet f8r ett par matareller transportvalsar, som ombesorjer kortets vidaretransport, medan griparen utfor sitt bakatslag, for att uttaga dct narmast foljande kortet ur forradsbehallaren. In slip card machines and other short-working machines, the cards are removed one by one from a storage container and fed to a scanning or analyzing device. The cards are removed with the aid of a reciprocating gripper, which swings in the direction of transport of the cards and at each forward stroke grips a card at its rear edge (seen in the direction of movement) and discharges it from the container. In this case, the card enters with its front edge into the area for a pair of feed or transport rollers, which arrange for the card to be transported further, while the gripper performs its backstroke, in order to remove the nearest card from the storage container.

Hittills vanliga anordningar ha den olagenheten, att tillforselhastigheten for korten och periferihastigheten pa dot framfor fOrradsbehallaren befintliga matarvaIsparet overensstamma blott for ett ogonblick, sa att alltsa kortgriparens drivmekanism och drivanordningen for matarvalsarna maste anpassas ytterst noggrant till varandra for ernaende av en noggrann korttillforsel. Sma a-vvikelser frau den erforderliga noggrannheten kunna emellertid giva upphov till avsevarda st8rningar. Genom de hittills vanliga anordningarna kan det vidare icke undvikas att kort- griparen standigt med en bestamd hastighet traffar kortens kant, varigenom korten slitas ut i fortid och maste ersattas med nya. Conventional devices hitherto have the disadvantage that the feed speed of the cards and the peripheral speed of the feed pair existing in front of the supply container only coincide for a moment, so that the drive mechanism of the card gripper and the drive device for the feed rollers must be very carefully adapted to each other. However, small deviations from the required accuracy can give rise to considerable disturbances. Furthermore, with the hitherto usual devices, it can not be avoided that the card gripper constantly hits the edge of the cards at a certain speed, whereby the cards are worn out in the past and must be replaced with new ones.

Praktiska forsok hava visat, att de angivna olagenheterna kunna helt undvikas, om man for drivningen av kortgriparen anvander sig av en kurvskiva, som gor det mojligt att under ett langre tidsintervall Ora korthastigheten lika med periferihastigheten for matarvalsarna oeh att fullstandigt eliminera den slagartade paverkan av den bakre kortkanten genoin kortgriparen, i det att hastigheten pa kortgriparen i det Ogonblick som den traffar kortkanten, Or lika med noll. Practical tests have shown that the specified disadvantages can be completely avoided if a cam disk is used for driving the card gripper, which makes it possible for a long time interval to keep the card speed equal to the peripheral speed of the feed rollers and to completely eliminate the kind of impact of it. rear card edge genoin the card gripper, in that the speed of the card gripper at the moment it hits the card edge, Or equal to zero.

Uppfinningen bestar foljaktligen ddri, att den ifragavarande kurvskivan bur en sadan form, att i borjan av kortgriparens framatslag dess hastighet forst stiger och sedan nedgar till noll till ogonblicket for patraffandet av kortkanten, darefter stiger likformigt till kortmatarvalsarnas periferihastighet och Mlles lika med denna under en bestamd tidsperiod for att till slut nedga till noll till paborjandet av kortgriparens bakatslag. Accordingly, the invention consists in that the cam in question has a shape such that at the beginning of the card gripper's forward stroke its speed first increases and then decreases to zero at the moment of hitting the card edge, then rises uniformly to the peripheral speed of the card feed rollers and Mlles equal to this. time period to finally decrease to zero until the onset of the card grab backlash.

Dot beskrivna forloppet vid kortgriparens svangningsrorelse visas i fig. 1 a bifogade ritning i form av ett tid-hastighetsdiagram. Delen a av diagrammet visar forloppet av kortgriparens slagoverskott, delen b forloppet vid framat- och delen c forloppet vid bakatslaget. The process described by the oscillation movement of the card gripper is shown in Fig. 1a of the accompanying drawing in the form of a time-velocity diagram. Part a of the diagram shows the course of the card grabber's excess stroke, part b the course at the front stroke and part c the course at the back stroke.

Fig. 2 visar en utf8ringsform av kortgriparen och dess kurvmanovrerade drivanordning vid kortmagasinet till en halkortssorteringsmaskin. Fig. 2 shows an embodiment of the card gripper and its curve-operated drive device at the card magazine of a non-slip card sorting machine.

Kortgriparen bestar pa vanligt satt av en i hojdled installbar kniv d, som Or fast vid en klots eller dylikt e, som ham styrningsdelar f och ar forbunden med en vinkelhavstang g, som manOvreras fran en kurvskiva h. Formen pa kurvskivan h motsvarar det i fig. 1 visa-de tid-hastighetsdiagrammet. Vinkelhavstangen pa.verkas av en dragfjader i, som astadkommer kortknivens d bakatslag. Om en kurvskiva med kurvspar anvandes, kan givetvis fjadern i slopas. Vid vane framatslag av kniven d gripes ett kort h och tillfores till matarvalsparet 1, som roterar under maskinens drift och tillfor kortet till avkanningsanordningen. The card gripper usually consists of a height-adjustable knife d, which is attached to a ball or the like, which has guide parts f and is connected to an angular sea rod g, which is operated from a cam disc h. The shape of the cam disc h corresponds to that in fig. 1. display the time-speed diagram. The angular sea rod is affected by a tension spring, which causes the dorsal impact of the short knife. If a basket disc with basket pairs is used, the spring can of course be dropped. When the knife d is used, a card h is gripped and fed to the feed roller pair 1, which rotates during the operation of the machine and feeds the card to the scanning device.

Claims

1. Paten tan sprak: Card supply device, especially for slippery card machines, riled a card gripper performing oscillating motions, which Or arranged to be driven by a cam disc and to supply the cards in turn one by one to a pair of feed rollers, can be drawn therefrom, that the cam (h) takes such a shape that at the beginning of the card gripper (d) its stroke first its speed increases and then decreases to zero at the moment of the impact of the card edge, then rises uniformly to the peripheral speed of the card feeder rollers (1) this for a certain period of time to finally decrease to zero until the start of the card grabber's (d) setback. Stockholm 1949. Kutgl. Bohr. 1 ". A. Norstedt & Slicer 490089