JPS5883263A - Screening device for quality of root vegetables, tubers, fruits and confectionary - Google Patents

Abstract

PURPOSE:To permit screening of foreign matter and defectives and screening of abnormal shapes by combining a mass (weight) measuring device and an electric capacity measuring device. CONSTITUTION:A single endless conveyor system 10 consists of a feeding conveyor 10a, a conveyor 10b for an electric capacity measuring device, a conveyor 10c for weight measurement and a discharging conveyor 10d. A pair of electrodes 12a, 12b are provided on the lower side of the belt 11 of the conveyor 10b and the upper side of the belt 11 at a sufficient spacing through which individual objects 30 to be measured can pass, and a display 13 which measures the electric capacity (electrostatic capacity) between the electrodes 12a and 12b and displays the same is provided, by which an electric capacity measuring device 14 is constituted. The device 14 is so arranged as to measure the electric capacity between the electrodes 12a and 12b during passage of the objects 30 therebetween a number of times at every feeding of the objects 30 by means of a photosensor 23 provided in the feeding part.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for automatically sorting the quality of daikon radish, carrot, potato, sweet potato, mandarin orange, apple, and other bags of mullet.

Using potatoes as an example, a group of potatoes that are inspected may contain one stone or one that has rotted. The conventionally known skin maR only weighs each foot, so it is not possible to remove 1 stone or 114 mm 1 k, and it is only hand-selected from 11 mK by human eyes.

Therefore, the dragon concentrator found out that these 14 pipes and the rotten matter were different in weight (*amount) K and had a different electric capacity from the original Kisakusato, and they were called a fixed device with a weight of 1k. electric valley jljlilj
i! By combining these devices, we were able to sort out these 14 items and defective items, and also succeeded in sorting out items with abnormal shapes.

That is, an experiment was conducted on a group of potatoes and a group of oranges collected from Hokkaido, and the output (mV) of the capacitance meter was plotted on the vertical axis.
An experiment was conducted with weight gr plotted on the horizontal axis, and distribution results as shown in Figure 6 were obtained.

Therefore, the normal potato group is included in the y song mP,
Concrete and stone are included in tracks #I & 4, and a group of potatoes that have rotted considerably are included in curve P1, and these areas can be clearly distinguished from curve P, which includes normal potatoes.

In addition, in the case of the tangerine group, song #1 of the normal tangerine group
Although the area 0 and the area 01 of the rotten orange group are close to each other, they can still be distinguished.

Therefore, as the permissible range, a value included in the curve P is used for potato sorting, and calculations are made based on the two measured values, ie, the capacitance value and the mass value.

By comparing whether or not this value corresponds to the l1ff-valley range and making a determination accordingly, it is possible to distinguish between normal and other values.

In Figure 5, if jo1 is the electric capacity and W is the weight, then l is
O/V=muO represents the slope of the distribution tendency of each related object.

In addition, by making slight changes to the arrangement or size of the pair of electrodes and the plate feeder screw, for example, thick and elongated sweet potatoes, straight and distorted cucumbers, and other fruits, etc. Normal shapes and abnormal shapes, such as those with continuous flatness and those with area-like shapes, differ in the distribution area of calculated values based on electric capacity and mass, so those within the normal shape area curve are classified as eave #I can. Then, the normal shape and J! It can be clearly distinguished from the regular-shaped one.

This invention is designed to measure objects such as the above-mentioned objects that are continuously transferred on a conveyor, such as stones, stones, etc.
The trick is to avoid touching the object to be measured (this is for automatic removal).

This invention provides that a portion of a single conveyor system has a mass (xt)
) A mA determining device and a pair of capacitance determining devices are respectively provided, and furthermore, at least one sorting device for removing the object to be measured from the conveyor system is provided on the discharge side of these devices; It is calculated whether the wax calculated based on each mKj & measured by two types of measuring devices is within a preset tolerance range, and the value calculated based on the two measured values is outside the rrg range. Sometimes it's acceptable 111! It emits a discrimination signal different from that when it is within the range, and retains the signal level of at least a part of these two types of discrimination signals, so that when the captured object corresponds to reaching the position KJA of the sorting device. by the signal of.

A computer is provided that issues a command signal corresponding to the discrimination number M, and the command signal is used as an input signal for operating or inactivating the sorting device. Items such as **This is a separate device.

The present invention will now be described based on a representative implementation shown in the drawings.

In the figure, 10 is a single endless belt conveyor thread, and in the one shown in Figure 1, the carrying conveyor 10s
+, * It consists of a conveyor 10b for air capacity measurement, a conveyor 10c for lim measurement, and a conveyor 10d for 1lts, and the lower side of the belt 11 of the conveyor 10b for electric #jli7MIl meter, and the top of the belt 11. The individual measured objects 60 can pass through @ (silence capacity 1k) is 1tJ
IllL, the display s16 that displays this is closed,
With these, the capacitance adjusting device 14 is set to #1IhX. This electric capacity measuring device 14 measures the electric value using a photo sensor 23 provided in the loading section.

The upper and lower main electrodes 12a are disposed facing each other so that the upper main electrode 12a can be carried more easily.

As for the conduction line for the 6th inspection of the capacitance measuring device ■4,
As shown in Figures 6 and 7, the conveyor belt 10b is tilted at 60° to 45° in the width direction.

Raw electricity ti112 is placed on the upper 1i1 of the belt conveyor 10b.
A counter electrode 12b is provided below m. In this case as well, the length of the counter electrode 12b in the wrinkle feeding direction is
M's boat is a member of the crew.

A load cell footwear measuring sensor 15 is installed along the bottom of the belt conveyor 10c of the conveyor belt of the electric '411 leveling device 14. Object Spear 2 Fort Sensor 1
6) The distortion of the constant sensor 15 caused by the object 30 passing on the conveyor 10c is measured, and in the calculation and display unit 17, the mass value is expressed as
Convert and display. The quality m measurement sensor 15 and the conversion and display section constitute a quality and weight measuring device 18.

In the above example, the capacitance measuring device 14 and the quality 1 are 6i.
18 and a separate conveyor 10b1.10C
There is no difference in the present invention even if the jet array is provided in sequence 1 or in the reverse direction.

12b is provided opposite to the belt conveyor 10b, and this belt conveyor 10 bill
Even if the sensor 15 of the K-quality weight determination device 118 is excluded, there is nothing new about this invention.

411, which was measured several times by the measuring device 14 in the electrical valley 1 mentioned above.
Temporarily hold the average value of the capacitance of the measuring device 60.

Using the stationary measuring device 18, the weight of the above constant value 30 is kept constant for a number of times, and the average value is temporarily held, and these waxes are substituted into the value f(1, W) for calculation. Then, it is compared with Soki Enchantment - Enishi (for example, P or 0), and it is determined whether it is included in this or not, and an on or off judgment signal Ij1g is issued.

It is desirable to write fLI = f (X, W) = .

Such calculations and output of determination signals are performed by a calculation machine (computer) 19. Calculation [119 is.

This invention is the same even if it is capable of advanced general calculations, or is simple and has only one crossbar, and the allowable range 17fl value is set using a bladder.

20 is these two 6111M! Apparatus 14.18 is a sorting device for the conveyor belt 10C or 10d, which is perpendicular to the direction of movement of the belt conveyor 10C or 10d.
The dispensing member 21 that moves is provided to be operated electromagnetically, and is operated in response to any one of the discrimination signals of the 1ttr computer 190, and is not operated in the case of other discrimination signals.Actually, The passage of the object to be measured 30 through the two measuring devices 114 and 18 is detected by the autosensor + 22 of 6 and 7, and at the same #&, a device is provided that emits a # signal that is synchronized with the movement dimension of the conveyor 100. , this intermittent signal is counted and the number is set exactly when it reaches the position of the sorting device 20, and after the detection of the seven auto sensors 222, the number of intermittent signals is determined when the measured twso reaches the position of the sorting device 20. It was the first time when I encountered the situation.

The front distributing device 20 is provided so as to perform one action.

Since the discrimination signal is off when it is outside the lIF capacity range, the sorting device 20 does not operate, and 304 objects to be measured that are outside the permissible range are transferred to the unloading conveyor 1 to the end of the conveyor system.
It is transferred by 0d and completed all at once.

In the above-mentioned Hata sorting [20], the present invention is the same even if those outside the unacceptable range are actively removed from the conveyor system, and those within the acceptable range remain.

In addition, the above-mentioned quality 1kIIA determination device judged that it was within the permissible range.
A sorting device may be added on the subsequent conveyor 10d by ll (not shown).

In the case of implementation a shown in Figure 1 and Figure 2,
Suitable when raw agricultural products contain stones, concrete lumps, or rotten materials.

In addition, in the device using the capacitance constant device 14 shown in Figures 4 and 5, the distribution bone of the electric force lines is the main electrode 12.
Since it is 1 high, which is close to the heat, bulky items can be detected as 1 j 13 yen, and by dividing this by quality; 1 (1 quantity), 1. and discrimination against thin people.

In addition, it is easy to sort out flatness of persimmons and the like, and sort KA into Masatomi-shaped and 14-tomi-shaped.

In addition, the capacitance measurement of 1-6 and 7 is required.
In the case using the belt conveyor 14, since the belt conveyor 10b is discussed, even if the object 30 to be molded is delicate, it must be placed on the belt conveyor 10b and along the counter wire Wi12bK. Since the tube to be measured 60 is conveyed, a straight tube passes a position 1IIi opposite from the main electrode 12m, but a distorted tube passes a part of the fixed object near the main electrode K1m. , and by dividing this by the other practice - 婓 (l 東) 正, it is possible to select curved objects regardless of their size.

In this way, in the case of the object to be measured 50, which can be obtained by removing foreign substances such as stones and concrete lumps, and by measuring the same electric capacity '1 as the 14 ordinary-shaped theory, the measuring apparatus can be used to measure one electric capacity 1 ( If this is not possible, in one conveyor thread 10, different implementations of the above-mentioned electric valley expansion device can be applied, and different conditions can be selected in a single conveyor M.

In the case of the invention which is said to have been completed in K11 as in Narukami, the device of this invention was used to cough up 1llll things from the harvested pots of root vegetables, lumps, fruits, etc. In order to supply kfi to the conveyor system, this agricultural @-WL
f dice 111! If you set the encirclement and input it into the calculator,
After that, even if there are foreign substances such as stones or concrete mixed in with the agricultural products, or even if 1gt is mixed with rotten items, or even if there are objects with abnormal shapes mixed in, the fixed -30 It is possible to sort crops, fruits, etc. that are easily damaged by separating them without any contact with anything other than the handling and sorting means.

In the apparatus of the present invention, it is possible to select three lateral root degrees in one second in experiments conducted by the applicant in Ghund. Therefore, in a large collection area, the number of conveyor systems may be increased as appropriate depending on the scale of the area.

[Brief explanation of the drawing]

The drawings show parts 11 and 14 of this release. Figure 1 is a block diagram showing the flow of information and the flow of information in the AT beast part, and Figure 2 is a perspective view showing the other parts of the capacitive device section. Goofufu showing the relationship with mass, the spear 4- is the protolayer-like mask of another embodiment of the electric t4 quantity measuring device ILs-1 the spear 5- is the flat 1Iiii diagram of the spear 4 figure,
Fig. 6 is a longitudinal sectional front view showing another mode of operation of the capacitance constant device section, and Fig. 7 is a bulge rkJ diagram of the capacitance constant device. Code in the figure. 10... Conveyor, 11...
Beto, 14... Electric capacitance determining device. 18... Tribute substation device, 19...
calculator. 60...a-type item.

Claims (1)

[Claims] A part of a single conveyor thread is provided with a weight gauge and a pair of electric spring quantity measuring devices, respectively.
On the discharge side of these devices, there is a sorting device that removes the fixed object from the conveyor thread to the outside of the system, and the O value is fixed by the above-mentioned two types O sub-regular wrinkles. The value calculated based on the value or the preset value
If the value calculated by the two O# constant values is outside the 1F range of the previous specification, a different determination signal is issued from when k is within the tftII range, and these two IIO determination signals There is also a computer that can output a command signal corresponding to the command signal that holds the -ttxto signal all the time.It is known that this command signal serves as an activation or immobility input signal for the distributing device. A quality sorting device for grains, fruits, nestlings, etc.