- to measure the inside diameter of bottles
- to control the tolerances
- to sort out faulty containers
- to process the measured values and provide statistics.
Measuring Principle
The bottles are illuminated through
their bottom by some LED- light sources. A special lens projects the
image of the neck to the optoelectronic receiver. It is designed on the
base of some CCD-row sensors.
The output signals of these sensors are
evaluated in a special microcomputer. It provides the signals to sort
out the faulty containers as well as some statistics. The measured
values are displayed using a special display unit based on LED-diodes.
Structure
The device permits a simple arrangement
on the conveyor belt. The bottle is transported using a bottom belt as
well as the finish support belt at their neck.
It is easy to maintain and can be combined
with other testing systems. It can be installed at available container
testing machines too, for example at CO-machines.
Service and Operation
Particular emphasis was placed on operator convenience: The installation can be done easily and an adjustment is not required even after job changes.
Specifications
- maximum inside diameter of the neck: approximately 30 mm
- speed of measurement: up to 300/min
- accuracy of measurement: 0.1 mm
- The device works in a contactless manner without wear.
- There is no need of mechanical gauges.
- Any rotation of the bottle is not required.
- The device can be used at bottles with a circular cross section as well as at a wide scale of non-circular containers.
- A measured value, not just a test result passed/not passed is provided. This way trends can be detected as soon as possible.
Structure of IDM(C) on
principle
Sensor board with eight row
sensors
for measurement of four
diameters.