DD259912A1 - TEST HEAD FOR MUENDUNGSUNBENHEITEN AND MUENDUNGSINNENDCHMESSER - Google Patents

Abstract

Pruefkopf for Muendungsunebenheiten and Muendungsinnendurchmesser, especially for Weithalsglaeser. The inventive solution two Pruefvorgaenge be combined by pointing at lowering the Pruefkopfes on the Glasbehaelter the weight of the movable Pruefkoerpers and the hinged Pruefplatte smallest errors in Muendungsbereich and at the same time next to a centering of the Glasbehaelters when lowering by Innendurchmesserpruefring the minimum inner diameter can be checked.

Description

For this 1 page drawing ·

Field of application of the invention

The invention relates to a combined test head for muzzle bumps and muzzle inner diameter, in particular for wide-mouth container glass for quality control of container glass flow lines.

Characteristic of the known technical solutions

There are probes for quality determination of wide-necked glass known to be lowered vertically to the container to be tested, without any lateral swiveling is given.

These probes have the disadvantage that their accuracy is limited due to their immobility.

Also, probes are known which contain a movable measuring plate and the test pad is fixed areally on the measuring plate. For the necessary sealing of the media supply and measured value recording, rubber sealing rings are inserted between the measuring plate and the test specimen.

This test head has the disadvantage that the fixed test lining on the measuring plate precludes the mobility of the measuring plate and thus fine errors in container glass mouths are not detectable.

The rubber seals are subject to wear during the continuous movement and cause measurement errors with the least possible leakage.

In this device, the direct lowering force of the probe acts in the measuring period on the container to be tested, which in turn counteracts the measuring sensitivity.

Object of the invention

The aim of the invention is to eliminate the aforementioned disadvantages and to improve the quality of products to be delivered. As a result, in the filling industry, as well as the simple consumer, a better closeability of the container ensures and reduced food losses.

The essence of the invention

The invention has for its object to develop a test head preferably for wide-necked glass, with a high sensitivity and thus the smallest errors in the mouth area can be found.

Furthermore, the inner diameter should be checked simultaneously during a measuring stroke.

For serviceability, the testing or measuring tools should be easily replaceable.

According to the invention the object is achieved in that a test body is supported by a freely movable in a padded space guide pin, wherein between test specimen and angesatztem Innendurchmesserprüfring a test plate is arranged freely movable.

The specimen is each provided with a connection bore for the measuring and pressure line.

At the attached inner diameter Prüfringe a measuring space is arranged, which ensures through holes the media supply.

embodiment

With reference to a drawing, an embodiment will be explained in more detail. Fig. I: shows a section through the tester.

The glass container to be tested, in particular wide-mouth container glasses, is fed in a known manner via a transport member of the testing station, where it is detected by sensors and locked by known control. After locking, the test head is lowered to detect muzzle bumps and to determine the inside diameter of the muzzle.

In order to avoid a hard placement of the test head on the glass container (1), the guide pin (2) is mounted in the test body (3) in a padded guide space (4) and is held by a coupling ring (5).

When the test head is lowered, the inner diameter test ring (6) slides into the mouth of the glass container (1). Here, the freely movable and the Innenendurchmesserprüfring (6) held test plate (7) sets on the glass container to be tested (1).

In this process, the test head is relieved of the guide pin (2) and the weight of the self-supporting probe determines the light and uniform loading of the test plate (7). A very fine measurement over the entire mouth region of the glass container 1 is ensured.

The test pressure for the unevenness measurement passes through the connection bore Sund via the pressure compensation drilling 9 in the inner diameter test ring 6 to the measuring chamber 10. The pressure difference is evaluated in accordance with the tightness of the glass container 1 by means of measuring devices at the connection bore.

The inner diameter test results in a centering of the entire test head to the glass container 1 for the unevenness test. This centering has a positive effect on the uniform distribution of the load of the test head on the mouth edge and

the test plate 7.

With immersion of the inner diameter of the test ring 6 in the glass container 1, the minimum inner diameter is checked.

Claims (2)

1. test head for Mündungsunebenheits- and Mündungsinnendurchmesserprüfung, especially for wide-mouth containers, characterized in that a movable in a guide space (4) and held by a coupling ring (5) held guide pin (2) carries a test body (3), each with a compressed air and Meßleitungsanschlußbohrung 8; 11, a test plate (7) and a Innenendurchmesserprüfring (6) with pressure equalization holes (9) contains. 2. Probe according to claim!, Characterized in that the Innenendurchmesserprüfring (6) to a measuring space (10) is discontinued.