DE1473397A1 - Device for determining defects in vessels, in particular glass vessels - Google Patents

Description

DIpl.-lng.R.H.Bahr. Dlpl.-Phys. E. Befaler

Mil »ι u __— * ■ Li ^ ⁸ * ⁰ Herne, den

Dlpl.-lng. W. Herrmann-Trentepohl Freingrathstraee "

PATENTANWÄLTE Λ / ΠΠΠΠΠ Telephone: Hern «50930 and 51562

I H / Oo "/ Telex: 08229853

T ₇ ^ί3 'Μ.

π 8000 Some 23 den

Elsenacher Strasse

Telephone: 38 8011. 30 B012, 39 8013

Part ex: 0524582

File no. A 15 554 K / H. Please indicate in the answer

Compagnie de Saint-Gobain, 62, Boulevard Victor Hugo, Ueuilly-sur-Seine,! France

"Device for plaguing Eehlera on vessels, in particular Glass vessels "

The invention relates to a device for determining defects in vessels, in particular glass vessels, the above Probe the vessel and when the probe comes into contact with the test object, electrical contacts are actuated trigger a signal to discard the test item.

There are already devices for determining unevenness of a workpiece by scanning the surface with a large number known from tactile fingers.

With another known device, bricks can be scanned for their perfect shape, in which a number of Hollen can be used for scanning.

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UnterUflen (AK.? § 1 para. 2 No. 1 sentence 3 the amendment _fl8 fle ". V. 4 &. 1967J Dresdner Bank AQ Herne 20243 · · Postscheckkonto: Dortmund SM« · Tategrammanschrltt: Bahrpatente Hernewestfalen / Babetzpat Munich

With another known device it is possible to check the external shape of bottles. It deals This involves a roller scanner, with electrical contacts being assigned to each individual roller. At a Adjustment of the electrical contacts caused by faults becomes a signal to reject the test object triggered.

With none of the previously known devices can however, determine surface defects of the inner bottom surface of hollow bodies, for example containers or vessels. In particular, vessels made of cast glass sometimes have surface defects on their inner bottom surface, ranging from a slight deformation up to a so-called needle fault, d. H. a pointed, upwardly directed outgrowth. Needle faults are particularly dangerous in the vessels that are used to store food because these needles or points splinter and can be swallowed by the consumer.

An examination of vessels or containers for the aforementioned errors can be made with regard to the necessary care not compared with the usual measures, for example to determine the roundness of bodies because, on the one hand, the sources of error to be identified are considerable, and, on the other hand, the effects if they are overlooked a failure catastrophic proportions due to a

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additional area of use of certain glasses, namely for feeding babies, could adopt »

Because of the dangers of swallowing the needles mentioned, it is necessary to have a detector arrangement to create that finds out in a completely safe manner the existence of such an error, expedient should be a detector arrangement for the determination of needle errors at the same time also serve to monitor the most important glass dimensions, so that one that takes place in several places Avoid control.

According to the invention, a device of the type mentioned at the outset is proposed for this purpose, which is characterized by is that the tactile fingers can be inserted into the vessel and with its sub-surface exactly the inner bottom of the vessel corresponding rigid body from this area stored downwards protruding and against the effect a spring are recoil, while they do not return in the presence of a fault.

With this design of the control device according to the invention, not only needle errors can be reliably determined but also errors with regard to the exact shape or inclination of the vessel bottoms can be determined This device can also detect foreign bodies in the vessels.

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According to the invention that penetrates into the interior of the glasses Suehorgan equipped with diving fingers, which are slightly down over the actual search element , stand out. If the search element can completely take on the shape of the glass bottom, all the fingers will be at the Contact with the glass bottom pushed back. This opens an electrical circuit. If all of the Diving fingers corresponding circles are opened at the same time, can be accepted with the necessary security ensure that the glass has no defects of the type to be examined.

The use of multiple! Dauchfinger is. according to the invention indispensable, as it could happen that the search element comes into contact with the bottom of the glass at the point j where the diving finger is located. So in this pail the electrical circuit would correspond to this

■ interrupted a diving finger and one would mistake a defective glass for a good one. The use of two, preferably three, diving fingers makes it possible to avoid sources of error of this type.

Another feature of the invention is used to identify further errors, according to which the body has a rigid part which is placed on the upper edge of the vessel to be tested. Are the dimensions of the vessel

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nloht within de? raläasieen foleranaaai then eioli d "r etcxxe body not free from the bottom of the G" fä ~ ßea abeenlcen * and you can lcann aleo also a «dimension * - check · dta aöfäßee with this performance »

Am I executing? crfindun ^ s ^ ömäBen riohtvme shall la following ejohartd ötr zonings are described · Di «Zeiehnunisen aei ^ eji int

The vessel _for the inner bottom surface of which has an even, needle error atuTweiatf

2 an “enroohed, simplified ßohnit * diiroh. slide

• - ■ ♦

I «inen ßohnitt through the rigid % & Φ * ε * of the in

the inside of the vessel a penetrates 4 a simplified picture of the dura- tion of the Stvoa » icreieee for the

. 1 shows “in” execution fore elnee Prüfgefüßee in Fora

«Ines EiTiiaaohalaflee» Bai 1 erJceant one aog »Kadelfehler, Di« A ^ emeesunsen A _f B, O and D laaeaa eioh bit of the «pf indungagea & Beii device muoh * uaerh» lb their actual AuiöÄ ^ ai errors on the inner floor >

2 shows upright without an overlook

9 0 9 S Q 6/0 B 7 2

U73391

Sits up · At 3 you recognize the connecting rod »which is Goose «With and moves * The rigid body 2 consists» "at * spieleveise «made of plastic and carries the 3teatfinger 13, the resiliently pressed down «earth · Si · stand below the effect of the helical spring 1 ** which is calibrated with ν the covenant associated with Tinger 13 15 absttitat «The upper Part 16 of the finger 13 is electrically conductive and represents. electrical contact wipe itself and the rope her »Part 1? itself is with the rigid body 2. · In a preferred connected lusführunssfora three pingers 13 and vereetxt available, inter alia, 120 ° * uf arranged dta bottom of the rigid corpora 2 * The whole can finally & ith a Sonutxhaube 18, for example mim Gumai, verdsn stranded »V.

. Xa are tr rest eioh fingers 13 noraaler · «else in its lowest position and protrude sus dea unte · ren Part of the rigid K &rptr" two out "Xs ie, an electrical Xontakt" wipe the ropes 16 and

in working position and in the absence of any fault * on the bottom of the slope «ground the pincer 13 upwards Buzückruckont and the electrical contact is thus interrupted This increase in electrical contact determines the usability of the vessel If there is a mistake or if it is faulty

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ganaen Yorrichtuns, the rigid _t penetrating into the vessel body Z is moved up and down by means of a connecting rod 3, which is resiliently fastened in a hay carrier 4 via a helical spring is moved by means of a hoop 7 and a small Eurbel rod 8 attached to it, which is attached to the carrier 4 on one side and to the Soneib * 7 on the other a signal following aust The vessel is held by a witness, de * ren a Haltebaolce shown at 11 live, and the star »

Body 2 descends into the vessel until it rests on the bottom of the vessel «The part 12 / which is connected to the connecting rod 3« scans the dimensions A * B and 0 »« the ϊβϋ 12 rushes exactly into the upper rope of the vessel must insert "If one of the dimensions 1, B and G does not correspond to the desired shape * then the part 12 of the rigid body 2 is prevented every hour from lowering" ion to the bottom of the vessel, and the vessel becomes discarded · tin error at 3> can occur at the same time as an error at the bottom of the vessel and is therefore also determined by the rigid body 2 «

3 represents a section of the rigid Z dart 3 *? exactly / dcB bottom of a proper vessel

. _t ORJGlNAL INSPECTH). · 2098Ü6 / 0572 copy ~~~ "

U73397

Dimensions of the vessels a the etarre body does not meet exactly on the. Bottom of the vessel ₍ and "at least one of the almost * * fingers is not pushed close to the top," He actuates "in an electric circle, which automatically discards the vessel that hits it"

4 shows the principle of controlling the electrical contacts. "Can actually always, or at least at least before each vessel test, determine the quality of the contacts" between the arrows 16 and 17 (Hg · 5). Tor } * & · * Gefüßprüfung sohiokt oan therefore in the lines I »XX and XXX one or more electrical Isapulse, which should appear again with good contact aa resistance B»

In the case of the (lead) electrical impulses in lines Z ₉ XXX and XX on the same side "which, if the OefSSea are free of errors, must not appear again on resistor E If, on the other hand, an error is present," at least one contact 16t 17 is closed * and the " Xnpulee reoccur at B and trigger the thrown corrosion "

They connection iswisoben the connecting rod 3 and the XSrper 2 can be rigid »Ss is also compatible * a non-rigid connection swischen these two SS # part <m Torausehen in Veise _f DAT the KBrper 2 variable Kei * can supply annehaen to" be so also lay out the oefttfiboden, see below

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H73397

can * venn the "tent" is the latter under a certain camber? all can "in elaetiechee Yerbindungeetück, beiepielsvoiee from Kautecbiik, or" in at the end "of the pl * uel ~ • tang · 3 8itstxid" B ball joint Yorgeijohen aoin. On the β «Vela * the O« fä9e niobt auegeeondfrt »dl · singleigliob • have a sloping bottom, anaonstan abor brauonbar Bind, e« »el because that this Heigvingaf« hler goes beyond a sugaXaaaenaa HaA ·

? atentanaprüchet

ι
■ I

909806/0572

Claims (3)

- 1 (J - claims U73397 1. Device for detecting defects in vessels, in particular glass vessels, with protruding sensing fingers scanning the vessel and, upon contact, the probe with the DUT electrical contacts are actuated, which may give a signal to discard the DUT trigger, characterized in that the sensing fingers (13) can be inserted into the vessel (9) on one and with its lower surface from the rigid body (2) corresponding exactly to the inner bottom of the vessel this surface is stored protruding downwards and can be repulsed against the action of a spring while they Do not slide back in the presence of an error (1). 2. Apparatus according to claim 1, characterized by a part (12) which is assigned to the rigid body (2) and which encloses the upper part of the vessel (9) in such a way that in the case of dimensional errors in the vessel (9), the rigid. The body (2) is not lowered "to the bottom of the vessel (9) and thereby triggers the signal to discard. 3. Device according to one or more of the preceding claims, characterized in that 909806/0572
New documents iah. ; s \ from. ζ μ. ι j- * jd «changes, ν. 4 ... υ n U73397 that the taller (15) protruding from the underfloor The rigid body (2) closes a circuit is interrupted * oohald venige ten »a Tinger vom lnnenhpden suruOkgeato & en will « 4 "Device according to one or more of the preceding analyzes, characterized in that the rigid body (2) is actuated by a crank-connecting rod system (3" 4 # 7 # 8), because "it is inserted into the vessel (9) introduces and looks out of de & seTben * 5 * Device according to claim 4 »characterized in that the rigid XOrper (2) and the hay bar (3) rigid with each other Yerhunden are " Device according to claim 4 "daduroh gelcennselohnet · dad der Darre body (2) an in besug on the Sleuelstango (3) rerttndlhe lousy inclination can take BADORiQfNAL 90 98 0 6/057 2