Nowadays, the rapid development of the food industry is inseparable from the credit of automatic assembly line equipment. How to ensure the qualified rate of food requires the introduction of machine vision detection equipment, which can detect products produced in continuous and large quantities, such as foreign matter detection in mineral water, printing quality detection of beverage bottle caps, bar code and character recognition on product packaging, etc.
In the process of beverage production, the application of automatic visual inspection equipment in the detection of bottle cap appearance defects mainly includes three aspects:
One is dimensional measurement, including the outer diameter of the cover body, the outer diameter of the anti-counterfeiting ring, the height of the cover, the inner diameter of the thread, the outer diameter of the inner plug, etc.
The second is surface defect detection, such as viscose, burr, notch, deformation, black spot, overflow, tooth collapse, color difference, oil stain, fold, etc.
Third, the printing quality inspection on the bottle cap. The bottle cap of some products will be printed with production date, shelf life, bar code, QR code and other information. It is necessary to detect whether there are defects such as missing printing, missing printing, fuzzy printing, incomplete spray printing, skew and so on.
The automatic visual inspection equipment adopts the automatic feeding mode. Through configuration, it can carry out all-round and automatic measurement of 360 degrees of the front, back, interior and side of the bottle cap, and automatically eliminate defective products. The detection data is stored in real time, which is convenient for subsequent management and query.
In order to ensure the quality of products in production, defect detection must be carried out. Sometimes, the accurate and rapid measurement of small size, shape matching and character coding can not be carried out continuously, stably and efficiently with the human eye, and other physical quantity sensors can not be used. Therefore, people begin to consider the rapidity, reliability and repeatability of the computer, so as to introduce the machine vision detection technology into the automatic production line.
Machine vision detection is more and more widely used in product detection. Next, let's take a look at the application of vision detection in food and beverage industry:
Detection of the outer packaging of boxed / bagged food, including the detection of the outer packaging of boxed / bagged food (including the detection of the damage of the outer packaging, the presence or absence of the label, the presence or absence of the production date, etc.);
Detect the liquid level and foreign matters of transparent bottled drinks to ensure the consistency of beverage filling and ensure that there are no foreign matters in the water in the bottle;
Detect the bottle cap packaging and eliminate the defective products such as missing bottle cap and skew bottle cap;
Inspect the quality, production date and serial number of the pull ring of cans, packaged beverages and canned foods;
Carton beverage outer packaging inspection: inspect the outer packaging of carton beverage, such as whether there is straw and whether the jack is damaged;
Count the overall packaging of bottled and boxed drinks to ensure the number of packages.
The automatic production line of food and beverage shall be reasonably equipped with machine vision inspection equipment, and the images shall be collected and processed in time by using light source, image acquisition and other devices to obtain the detection results. It has the advantages of simple operation, fast detection speed and high detection accuracy to ensure product quality.