JPH1048141A - Defective egg indicator at the time of egg inspection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a defective egg from being detected repetitively by marking the detected defective egg with an indication of 'detected'. SOLUTION: A defective egg indicator comprises an encoder 3, a control part 9, and a television camera and a laser scanner 5 which are placed above an inspection space S. The television camera 6 receives a light signal from a handy light transmitter 8 generated immediately above a detected defective egg E' for sending a position coordinate signal at the time of light emission to the control part 9, which sends the position coordinate signal and an advance signal of a roller conveyer 1 detected by the encoder 3 to the laser scanner 5 so that the laser scanner 5 makes spot radiation onto the defective egg. Since the carried detected defective egg has been spot-radiated, it may not be detected as a defective egg again.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a series of processing steps in which eggs are sorted by size (by weight) and packed in a container, in which defective eggs are detected from eggs that have been washed and dried. The present invention relates to a device for avoiding repetitive detection of a defective egg selected once in egg inspection as an operation.

[0002]

2. Description of the Related Art Cracked eggs having cracks in the eggshell are known as bad eggs.
Egg breaks with broken eggshells, blood eggs with blood inside, stubborn stains with stubborn stains remaining on eggshells, deformed eggs with irregular shapes that have passed inspection on the farm side, etc. . Such bad eggs should not be in the hands of the consumer and must be removed in the process described above. For this, an egg test is required.

[0003] In the egg inspection space, the eggs are transported while rotating on a roller conveyor which usually has six rows of eggs, and the eggs are inspected by illuminating the eggs with fluorescent light groups from under the conveyor. If the processing amount of chicken eggs is about 20,000 per hour, the detected defective eggs can be removed by hand, but it is difficult to remove them by hand with a high-speed processing device exceeding this.

Therefore, in the high-speed processing apparatus, a method is employed in which the defective eggs are merely stored at the level of the electric signal in the egg inspection space, and the defective eggs are collectively collected on the downstream sorting machine side.

[0005] As a method of storing a defective egg at an electric signal level, the progress of a roller conveyor is determined one by one using an encoder or the like, and the egg inspection space is covered by a television camera installed above the egg inspection space. To monitor. When the handy light transmitter is positioned above the detected defective egg and the switch is pressed, light is emitted from the position of the defective egg. The television camera receives the optical coordinates and specifies the position of the defective egg on the roller conveyor based on the encoder signal at that time. The eggs whose position has been specified are treated as bad eggs, and are collectively collected by the downstream sorting machine.

[0006] Incidentally, since egg inspection is directed to eggs that are transported while rotating, workers cannot make mechanical judgments such as drawing a line in the egg inspection space. You look at the side, look at the hand side, look at the hand side repeatedly. Since the indication of the selected egg is not given to the egg once identified as a defective egg, it is repeatedly detected as a defective egg.

[0007]

The problem to be solved by the present invention is that the egg which has been detected as a defective egg is not directly marked with a mark that remains behind, but is displayed with a display indicating that the egg has been detected. The goal is to improve efficiency.

[0008]

The features of the present invention are as follows. That is, the apparatus according to the present invention comprises an encoder for detecting the degree of progress of the roller conveyor, a control unit, and transports, while rotating, the chicken eggs accommodated in a plurality of rows of ova of the roller conveyor, from below the roller conveyor. It is composed of a television camera and a laser scanner which are respectively installed above an egg inspection space for irradiating light to detect a defective egg.

The television camera receives a light signal emitted from the handy light transmitter above the detected defective egg and sends a position coordinate signal to a control unit. The control unit detects the position coordinate signal and the encoder. Then, the progress signal of the roller conveyor is sent to the laser scanner, and the laser scanner spot-irradiates the defective egg.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a known roller conveyor in which six rows of eggs are formed between adjacent rollers, and eggs E, which have been washed and dried, are housed in the eggs, and are rotated. While being transported in the direction of arrow A. Both ends of each roller are pivotally connected to long pins of an endless chain. Reference numeral 3 denotes an encoder, which is attached to the sprocket shaft 2 of the roller conveyor 1.

Reference numeral 4 denotes an egg illuminator comprising a group of fluorescent lamps.
The transported egg E is illuminated from below the roller conveyor 1. Reference numeral 5 denotes a known laser scanner which scans the egg inspection space S of the roller conveyor 1 surrounded by oblique lines in the figure.

Reference numeral 6 denotes a television camera connected to the amplifier unit 7, which captures an egg inspection space S. Reference numeral 8 denotes a handy light transmitter, which sends the optical signal to the television camera 6 from above the defective egg E 'detected by the egg inspecting worker in the egg inspection space S.

Reference numeral 9 denotes a control unit provided with a CPU, which detects input information of the advance of the roller conveyor 1 from the encoder 3 and a defective egg when the television camera 6 receives the optical signal of the handy optical transmitter 8 when receiving light. The X coordinate and the Y coordinate of E ′ are received from the amplifier unit 7 as input information. Note that the amplifier unit 7 may be provided in the control unit 9.

Then, the X coordinate and the Y coordinate which changes according to the progress information of the roller conveyor emitted from the encoder 3 are defined as follows:
The information is sent to the laser scanner 5 as output information, and only the detected defective egg E 'is spot-irradiated with laser light to indicate that detection has been completed. This spot irradiation is performed on all the detected defective eggs until the defective egg E 'leaves the egg inspection space S.

[0015]

EFFECTS OF THE INVENTION Once a defective egg has been detected, an egg inspection
Since it is displayed that the laser spot has been detected until the laser beam exits, the detection is not repeated and the egg-testing efficiency does not decrease as in the prior art.

[Brief description of the drawings]

FIG. 1 is a perspective view of an apparatus.

Claims (1)

[Claims] An encoder for detecting the degree of progress of a roller conveyor, a control unit, and transporting, while rotating, the eggs stored in a plurality of rows of ova of the roller conveyor, light is emitted from under the roller conveyor. It consists of a television camera and a laser scanner installed above the egg inspection space for detecting defective eggs by irradiating, and the television camera has a handy light transmitter above the detected defective eggs. In response to the emitted light signal, the position coordinate signal is sent to the control unit, and the control unit sends the position coordinate signal and the progress signal of the roller conveyor detected by the encoder to the laser scanner. A defective egg display device at the time of egg inspection in which a scanner irradiates the defective egg with spots;