JPS5822275B2 - butsupinsenbetsusouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sorting device that automatically sorts fruits such as tangerines, apples, persimmons, and other round articles according to predetermined classification criteria.

Generally, mandarin oranges are harvested from mandarin orange mountains in various places and collected in large quantities at fruit sorting plants. Before being shipped to the market, mandarin oranges are washed with water, treated with wax, graded based on color, scratches, etc., and sorted into classes based on size. and packaging and boxing.

Conventionally, the above-mentioned grading has been carried out by supplying and dispersing mandarin oranges in a mixed state on a roller conveyor, transferring the mandarin oranges while rolling them, and visually sorting the color, flaws, etc. from both sides.

In addition, for class sorting, several rotating drums with many holes on their circumferential surfaces are arranged between roller conveyors in descending order of hole diameter, and the oranges being transferred are dropped into the drums through the holes through which they are sorted and discharged. I'm letting you do it.

However, each of the above-mentioned sorting methods has disadvantages in that the mechanical impact on the oranges causes large scratches and degrades quality, and the apparatus is large and takes up a large floor space.

In particular, the former type of grade sorting requires the presence of several workers, and since the workers make judgments visually, the sorting accuracy is inconsistent and requires a great deal of labor.

Therefore, the present invention provides a rotary set of article sorting device that can automatically perform grade sorting of color flaws, etc. and size grade sorting in one place.The configuration of the device is explained with reference to the drawings as follows. It is.

In FIG. 1, reference numeral 1 denotes a conical umbrella-shaped turntable, in which a disk 3 is rotatably mounted on a base 2, and a conical umbrella-shaped member 4 is erected on top of this by means of leg rods 5. do.

On the conical curved surface of the umbrella-shaped member 4, a large number of articles a, such as tangerines, are placed in a radial arrangement at regular intervals along the radial line that divides the chute side plate 6 into multiple parts, leaving a central portion, and a number of articles a such as tangerines are placed in one row on the upper surface of the umbrella-shaped member 4. A large number of input chutes 7 are formed in which individuals can die.

On the right side of the turntable 10 in the figure, a conveyor 8 for supplying articles a such as tangerines is appropriately installed at a predetermined upward slope, and the upper end of the conveyor 8 is surrounded by the upper end of each chute 7 of the umbrella-shaped member 4, forming a central supply section. 4a above.

A sensor 9 is provided at a fixed position on the side of the supply conveyor 8, that is, on the conveyor side, to detect the amount of articles in each input chute 7 on the rotating table 1, and the drive of the supply conveyor 8 is controlled so that a constant amount of articles is always kept. The articles are secured in each input chute 7.

Reference numeral 10 denotes a chute attached to the tip of the conveyor 8 toward the central supply section 4a, and the opening of this chute 10 is positioned on one side of the central supply section 4a, that is, closer to the conveyor than the center.

As shown in FIG. 2, each discharge chute 3L, 2 for sorting is placed on the frame side opposite to the discharge position on the left half of the table 1.
L, L, M, S, 28 are arranged and fixed radially in the circumferential direction.

The upper end population 11 of each discharge chute is the upper end population 11 of each input chute 7.
The outlet is placed opposite to and at the same distance above the outlet.

Also, each of these discharge chutes 3L, 2L, L, M, and S.

A boxing workbench 12 is installed on the floor below the outlet at the lower end of the slope of 2S.

A head 13 is attached to the outside of the outlet surface of each input chute 7 on the table 1 so as to be movable up and down, and is rotated together with the turntable 1 along the front side of each discharge chute 11.

The head 13 is mounted by fitting each rod 15 into the tip of each arm 14 that projects radially on the disk 3 so as to be movable up and down.

A roller 16 is attached to the lower end of each rod 15 as shown in FIG. 3, and the rod 15 is placed on a rail 17 provided along the turning trajectory of the turntable 1.

A coil spring 18 is wound around the rod 15 and compressed between the shaft bearing cylinder 19 fixed to the arm 14 and the roller mounting fitting 15a, so that the roller 16 is always pressed onto the rail 17.

A fixing rod 20 is attached to the protruding upper end of the rod 15, and a fixing platform 20a is formed on the upper surface of the rod 15 on the extended line of the input chute bottom surface 7a.

A swinging platform 21 is pivotally attached to the inclined lower end of the fixed platform 20a by a pin 22 so as to be able to swing up and down so as to form a V-shape with the fixed platform 20a, and articles a such as oranges are stably placed thereon.

A rotary solenoid 23 is installed within the fixed rod 20, and the operating lever 24 and the swinging platform 21 are connected by a ring 25.

When the lever 24 swings downward due to the energization of the solenoid 23, the swinging platform 21 swings downward so that the article a is transferred and discharged outward by its own weight.

The rail 17I/-i is laid in a ring shape on the side frame 2a of the base 2 as shown in FIG.

A fixed side plate 26 is arranged and fixed on the right side of the table 1 in the drawing along the outer side of the transition part of the swinging mounting plate 21, and the receiver is stopped so that the article a that rolls on the head 13 does not fall.

The height of the rail 17 is such that at the supply position of the table 1 where the fixed side plate 426 is arranged, the V-shaped platform of the head 13 is lowered from the outlet side of the input chute 7, and at the detection position continuing clockwise from this position. The article a is raised to a predetermined height, and at the subsequent discharge position, the article a is raised to the height of the discharge chute 11, and the fixing rod 20 can be positioned in a closed manner on the exit side of the input chute 7.

A television camera 27 is provided to the side of the detection position to capture the size of the article a on the head 13 moving here.

As shown in FIG. 4, an image of the moving article a is captured by an area meter using the television camera 27, and the size is automatically sorted.

That is, the television camera 27 captures an image of the article a, detects its edges, measures the time of the video signal from one end to the other, and converts it into a length.

The above scanning is performed over the entire image of article a, and the area of article a is measured by adding the video signals from each scan.

Since this area is output as an electrical signal level, the level is divided into six levels by the comparator 28, and the selection signal and head number from the comparator 28 are stored in a known suitable storage device. A discharge shoe) 3L in which the measured articles a on the head 13 are arranged according to the size type described above.

When moving to the 2L, L, M, S, 2S side, when corresponding to the corresponding discharge chute, the signal Tehead 1 from the storage device
3. Excite the solenoid 23 to discharge the article a.

In addition, 29 is a control box, and monitor 3
0 and a camera control 31 are housed together with an article size setting board and comparator 28.

Next, the overall operation of this device will be explained.

By supply conveyor 8, article a such as tangerine is transferred to chute 1
When the articles a are dropped from zero onto the central supply section 4a of the turntable 1, the centrifugal force caused by the rotation of the turntable 1 and the inclination of the conical surface cause each article a to be fed into each input chute 7 that opens toward the central supply section 4a. The rolls are swung out towards the , and each roll is 9 in a continuous state for several pieces in one row.

At the discharge position of the table 1, each head 13 rises to the outside of the outlet surface of each input chute 7, and its fixing rod 20 is positioned in a closed position, so that the articles a in each input chute 7 are stopped and rolled out. do not have.

In addition, at the supply position of the table 1, each head 13 is lowered to the exit side of each input chute 7, and its V-shaped platform is located at the same height as the bottom surface of the outlet of each input chute 7, so that the items a in the front row are is transferred onto each head 13, and the fixed side plate 2
It is stopped by 6.

In this state, when each head 13 is moved and rotated by the table 1 to the detection section, it is raised to the detection height by the rail 17, and the object a passing through this position is sequentially detected by the detection device including the television camera as described above. Screening is detected.

Each head 13 is at the ejection position of the table 1. When the article a is rotated, the article a is raised to the height of each discharge chute 11, and is discharged toward the corresponding chute detected and stored by the detection device.

Next, when the head 13 turns to the supply position again, the next row of articles in the input chute 7 is loaded onto the head 13,
The articles on the central supply section are fed into the same chute.

After that, repeat the above operation. In this way, each discharge chute 3L, 2L, L, M, and S.

The articles to be sorted and supplied within 2S are placed into packaging boxes on each packaging workbench 12.

1. The above embodiment is about sorting by grade based on size, but sorting by grade based on color flaws etc. can also be done by detecting the chromaticity, hue, reflected light illuminance, etc. of the article. The same can be done by converting and reading the TV right camera signal.

2.Also, in the above embodiment, the article a on the head 13 is discharged by swinging the swinging platform 21 provided on the head 13, but a pressing member is provided outside the head 13, and this pressing member It may be discharged, or it may be discharged by blowing air at an angle of 2 degrees.

Further, in the above embodiment, the object a is detected by raising the head 13 at the detection position, but it is not necessarily necessary to raise it here, and it is possible to detect the object even when the head 13 is lowered. .

Further, if a detection device is also provided corresponding to each discharge and the detection and discharge are performed at the same position, a storage device for storing the discharge position is not required.

The present invention provides a conical umbrella-shaped turntable having an input chute for radially arranging articles along radial lines that are divided into multiple parts on a conical curved surface, and a conical umbrella-shaped turntable having an input chute on its outer periphery that corresponds to each input chute and is integrated with the turntable. A rotating head, a detection device that detects the color, size, scratches, etc. of the object on the head by pattern recognition using the shadow of the TV right camera, and a detection device that detects the object on the head at a predetermined position based on the detection results. Since the article sorting device is equipped with a discharge mechanism for discharging the articles, it is possible to automatically grade and classify articles such as oranges, thereby saving labor, equalizing sorting accuracy, and improving work efficiency. However, since the product is not damaged or force is applied, there is no deterioration in quality, and furthermore, since the rotary set is compact, it has excellent effects such as not taking up floor space.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view of the present device, FIG. 2 is a top view, FIG. 3 is an enlarged side view of the head, and FIG. 4 is a block diagram of the automatic sorting and detection device. a...Goods, 7...Insertion chute, 1
...Turntable, 13...Head, 27, 29 Detection device, 21.22, 23, 24, 25
・・・・・・Ejection mechanism.

Claims (1)

[Claims] 1. A conical umbrella-shaped turntable having an input chute for radially arranging articles along radial lines that are divided into multiple parts on a conical curved surface, and a conical umbrella-shaped turntable having an input chute on its outer periphery that corresponds to each input chute and rotates integrally with the turntable. The color, size, scratches, etc. of the head attached to the head and the item on this head,
An article sorting device includes a detection device that performs detection through pattern recognition through TV camera photography, and a discharge mechanism that discharges articles on a head at a predetermined position based on the detection results.