How does tomato sorting machine work?

How does tomato sorting machine work?

There’s a line of optical sensors looking down onto the conveyor belt and a row of “rejectors” positioned like teeth on a comb just below. “We use the finger-type rejectors for larger produce, and air rejectors for smaller stuff,” says Frost.

How does a color sorting machine work?

Color sorter’s working principle is according to the difference of the optical properties of the material, using photoelectric detection technology automatic to sort the heterochromatic granule from raw material.

Who invented the tomato sorter?

University of California engineer Coby Lorenzen and University of California crop breeder Gordie “Jack” Hanna put their heads together to develop a machine to harvest, sort and load processing tomatoes, as well as a tomato variety that would be tough enough to survive a harvester.

What is a grade tomato?

Tomato may be weight graded as small (< 100 g, medium (100-255 g) and large (> 255 g) or Super A, Super, Fancy and commercial or size graded into 8 grades (i.e. 1 to 8) for fruits with size 30 to 102 mm.

What is Colour sensor?

A colour sensor is a type of “photoelectric sensor” which emits light from a transmitter, and then detects the light reflected back from the detection object with a receiver.

How much does a color sorter cost?

“Colour sorters have been around for quite a while for [higher value] products like edible beans. But the sorters cost around $250,000 to $300,000 per unit, and it can be hard to make that work financially in cereals,” says Alderson.

How does a sorter work?

The material to be sorted is fed onto an acceleration conveyor to spread the material to a single layer. The vibratory feeder helps spread the material to the full width of the acceleration conveyor, which helps in producing a single layer material for the optical sorter. …

Why do we need a mechanical tomato harvester?

Mechanization reduced harvest costs as a percentage of total production costs and is one of the factors that have allowed California farmers to remain competitive. Current harvest costs for processing tomatoes are 75% less than they were for hand-harvest, and rice harvest costs dropped by two-thirds.

When was the first mechanical tomato harvester invented?

According to Huffman, Colby Lorenzen, a UC Davis agricultural engineer, and Hanna began to develop a mechanical tomato harvester in 1949. In the late 1950s, another UC Davis agricultural engineer developed a vine separator for Lorenzen’s machine.

What is a tomato optical sorter?

Protec’s line of tomato optical sorters meets any processing requirements of the agri-food industry: whole tomatoes, peeled tomatoes, pulps, diced and tomato for paste. The tomato optical sorters reject products unsuitable for color, or identify and eliminate defects and foreign bodies.

What do tomato sorters look for and reject?

The sorters reject whole tomatoes with black, rotten or green color spots. Identify and reject foreign bodies, such as wood splinters, plastic, ears of corn or corncobs, cans, bottles, small animals.

What is the best color sorter for tomato harvesters?

Suitable for installation on any model and size of self-propelled tomato harvesters, the Color Sorter 2000 comes from Protec’s vast experience in applications for the agricultural sector. Double vision and double rejection systems, the Extrasorter 3W can sort and separate tomatoes and various fruit and vegetables into three different classes.

What is the best sorter for peeling tomatoes?

DixAir WT detects off-color, rot and discolorations in peeled tomatoes, fruit and whole vegetables. The only hexa-chromatic sorter in the world: it can be configured as Color Sorter as well as MOT (Material Other than Tomato) for the detection of foreign bodies, thanks to high-intensity and infrared light.

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