Are Your Bottles Capped?
Issue
Plastic containers, filled with liquid food products, are hermetically sealed at a Portuguese food-processing plant. Prior to containers being capped and packed in bulk, in-line testing confirms that each one has been correctly sealed. A long-distance inductive sensor, positioned directly over the packaging line, senses the presence of an aluminum-foil seal over the top of each container.
Description
Aluminum-foil closures are commonly utilized as seals for plastic containers filled with mustard, ketchup and other table sauces. At a Portuguese food-processing plant, closures are applied to filled containers passing along an automated production line, sealing the contents ready for capping and bulk packaging.
From time to time, equipment malfunctions occur and containers leave the sealing station without closures in place. If unsealed containers are not detected prior to capping, entire batches of product may require manual inspection, resulting in lost production, down-time and potential rejection by customers.
An in-line sensor system must inspect each container and detect the presence of a foil closure, rejecting any faulty items. Each line processes containers in batches; successive batches may comprise filled containers of differing sizes. The system must accommodate containers whose heights vary by up to 20mm, without positional adjustment of sensors between batches.
Solution
A single sensor, located immediately after the sealing station and positioned directly above the production line, provides reliable, repeatable detection of the aluminum-foil closures. With a switching frequency of up to 100Hz, this Extra Distance unit is well suited for fast-moving production where high-speed sensing is required.
Click here for the products in this application
Recent Posts
-
Everything you need to know about an infrared thermometer
Knowing the temperature value is one of the essential needs in industrial, household, agri …28th Jan 2023 -
Top 20 best seller products of 2022
As 2022 passed by, we took a look at the journey behind us. As with anybody else, we like to r …21st Jan 2023 -
The best inventions of 2022
The pandemic's restrictions on daily living during the past few years have sparked significant techn …18th Jan 2023