JPH09224484A - Seedling loader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently transplant only the specified number of cell formed seedling grow to specified size, among cell formed seedlings after germination, into another seedling tray while being put in order. SOLUTION: This seedling loader is composed of a supply conveyer 10 for conveying a seedling tray housing grown cell formed seedlings, a seedling complement conveyer 11 for conveying a seedling tray for loading proper seedlings, a sensing conveyer C for conveying the cell formed seedlings from the supply conveyer 10 to the seedling complement conveyer 11, a seedling sampling part B for sampling the cell formed seedlings from the seedling tray on the supply conveyer 10 and moving them to the sensing conveyer C, a seedling loading part E for extracting the proper seedlings from the sensing conveyer C and moving them into the seedling tray on the seedling complement conveyer 11, and a seedling discriminator F for discriminating the propriety of seedlings at the time of cell formed seedling conveyance while facing the sensing conveyer C, and the supply conveyer and seedling complement conveyer are moved in the same direction or the opposite directions.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a cell-formed seedling that has grown to a specified number and a specified size among the cell-formed seedlings after sowing seeds such as flowers and vegetables in a cell-formed seedling tray and germinated. The present invention relates to a configuration of a seedling filling device that aligns and transfers seedlings to another seedling tray.

[0002]

2. Description of the Related Art Conventionally, a set number of seeds such as flowers and vegetables are sown in each recess of a seedling tray in which recesses (pots) are formed in a grid pattern, and 2 to 6 leaves after germination and germination. When the size of the seedling tray becomes small, it is temporarily planted in a temporary plant tray or a temporary plant pot (vinyl pot) having a recess slightly larger than the recess of the seedling tray.
In addition, seedlings were raised to allow machine planting, and they were shipped in temporary pots. The temporary planting device is, for example, JP-A-7-7.
Like the technology of No. 5450, the cell-formed seedlings raised in the seedling trays are sequentially transported, and CC is fed from above each seedling tray.
The seedling tray is projected by a D camera, etc., and the whole or half or one row of the seedling tray is image-processed to detect missing seedlings, atrophic seedlings, etc., and only proper cell-forming seedlings are taken out by the loading robot and placed in a temporary plant pot. The temporary planting pots were arranged one by one, and the temporary planting pots were stored in a basket placed in a grid pattern.

[0003]

However, even if the whole or half or one row of the seedling tray is image-processed to detect missing seedlings, atrophic seedlings and the like as in the conventional case, the adjacent cell-forming seedlings are large. When growing or growing laterally, it is not possible to detect missing seedlings, or in the lateral direction it is not possible to detect shrinking seedlings that have not grown upward even if they grow appropriately, or when temporary planting one by one, Even when two cell-molded seedlings were growing in one pot, it was not possible to distinguish them from the branched leaves, so there are few missing seedlings and withered seedlings in the pot after temporary planting, It was reducing the product value. Also,
Since the cell-forming seedlings were transplanted one by one into the temporary planting pot by the loading robot, it took a very long time to temporarily plant one cell-forming seedling tray.

[0004]

The problems to be solved by the present invention are as described above. Next, the means for solving the above problems will be described. That is, a feeding conveyor that conveys a seedling tray that contains the cell-forming seedlings that have been raised, a seedling complementing conveyor that conveys a seedling tray that is loaded with appropriate seedlings, and a sensing conveyor that conveys the cell-forming seedlings from the feeding conveyor to the seedling complementing conveyor. And a seedling extraction unit that extracts cell-formed seedlings from the seedling tray on the supply conveyor and transfers them to the sensing conveyor, and a seedling loading unit that extracts appropriate seedlings from the sensing conveyor and transfers them to the seedling tray on the seedling complementing conveyor, The seedling supplementing device is configured by a seedling discriminating device which faces the sensing conveyor and discriminates whether or not the seedling is good when the cell molding seedling is conveyed.

Further, the supply conveyor and the seedling complementing conveyor are horizontally arranged in parallel to each other in the horizontal direction, and the sensing conveyor is arranged in a direction perpendicular to the supply conveyor and the seedling complementing conveyor so that the supply conveyor and the seedling complementing conveyor are arranged. Same direction,
Alternatively, it is configured to be conveyed in the opposite direction.

[0006]

Next, examples will be described. 1 is an overall front view of the seedling filling device of the present invention, FIG. 2 is an overall plan view of the seedling filling device, and FIG. 3 is a left side view of the seedling filling device.
FIG. 4 is a front view of the sensing conveyor C, FIG. 5 is a partial cross-sectional side view showing the opening / closing mechanism of the chuck device, FIG. 6 is a front view of the same, FIG. 7 is a plan view of the cup, and FIG. 8 is Y in FIG.
-Y arrow view, FIG. 9 is a front view of a cup, FIG. 10 is a front view of a cell-molded seedling, FIG. 11 is a side view of a seedling discriminating device, FIG. 12 is a plan view of the same, and FIG. 13 is a supply conveyor and a seedling supplement conveyor. It is a top view in the case where it is made to convey in the same direction.

With reference to FIGS. 1, 2 and 3, the overall structure of the seedling filling device of the present invention will be described. A caster wheel for movement is arranged below the frame base H, and a pair of conveyors are arranged horizontally parallel to each other in the front-rear direction above the frame base H. One is provided as a supply conveyor 10 that conveys a seedling tray P containing cell-formed seedlings after raising seedlings, and the other is provided as a supplementary conveyor 11 that conveys a complementary tray S that only extracts and stores appropriate cell-formed seedlings after discrimination. There is. A controller is housed on the left side of the rear part of the supply conveyor 10 and a control panel 1 having an operation panel is arranged. The size of the seedling tray P and the size of the cell-forming seedlings can be set. The replacement control is performed. At a substantially central portion in the front and rear of the frame base H, a sensing conveyor C is disposed so as to cross over both conveyors of the supply conveyor 10 and the complementary conveyor 11 in a right-angled (left-right) direction. A seedling discriminating device F is arranged.

A seedling extracting section B is provided above the intersection of the sensing conveyor C and the supply conveyor 10, and between the seedling tray P conveyed by the supply conveyor 10 and the cup 9 on the sensing conveyor C, The extracting part B moves back and forth and vertically at the same time to extract the cell-formed seedlings on the seedling tray P and transfer them to the cup 9. A seedling loading section E is provided above the intersection of the sensing conveyor C and the complementary conveyor 11, and seedling loading is performed between the cup 9 on the sensing conveyor C and the seedling complementary tray S transported by the complementary conveyor 11. The part E moves back and forth and up and down at the same time to grip an appropriate cell-formed seedling in the cup 9 and transfer it to the pot of the seedling supplement tray S.

Next, a specific configuration will be described. As shown in FIGS. 1 to 4, the sensing conveyor C horizontally supports a support frame 36 on an upper portion of the frame base H to pivotally support one side (left side) of the driven sprockets 34, 34. A drive sprocket 35 and a driven sprocket 34 are arranged on the other side (right side), and the drive sprocket 35 is rotationally driven by a motor 7, and a chain (or belt) is provided between the driven sprocket 34, 34, 34 and the drive sprocket 35. 20 is wound, and the sensing conveyor C is arranged in a direction perpendicular to the conveying direction of both conveyors so as to surround both conveyors of the supply conveyor 10 and the complementary conveyor 11 in a front view, and is rotated in the left-right direction. I have to.

A cup 9 is provided on the outer periphery of the chain 20.
······················ is fixed at a constant interval, the structure of the cup 9 is T-shaped in a side view at the bottom for fixing to the chain 20, as shown in FIGS. 7, 8 and 9. Mounting base 9b is formed, and mounting holes 9c and 9c are formed on both sides of the mounting base 9b.
Is opened and fixed to the chain 20 with a screw or the like. The mounting base 9b is guided by the guide plates 45, 45 (FIG. 4) from both front and rear sides so that the mounting base 9b will not be displaced when the chain 20 is rotated upward. The concave portion formed in the upper portion 9a of the cup 9 is a root pot Ga of the cell-forming seedling G.
As an insertion hole 9d for inserting from above.
The shape of d is formed in the shape of an inverted quadrangular pyramid that opens upward in conformity with the shape of the root bowl Ga.

Also, on both side surfaces (front and rear surfaces) of the upper portion 9a parallel to the conveying direction, the same as the insertion hole 9d in accordance with the interval and width of the chuck claws 5 to be described later from the top to the bottom. Notches 9e and 9e are provided in the depth so that two pairs of left and right chuck claws 5 and 5 can pass in the front-rear direction so that the root pot Ga of the cell-forming seedling G can be clamped in the front-rear direction. Further, as shown in FIGS. 4 and 9, a partition plate 6 is provided on one of the left and right side surfaces of the cup 9 at a right angle to the transport direction, and the partition plate 6 is erected at an intermediate position between adjacent cups 9 and 9. By arranging so that when the cell-formed seedling G is inserted into the cup 9 and the seedling discriminating device F discriminates whether it is good or bad,
Two seedlings do not coexist so that one cell-forming seedling can be reliably identified.

Then, the seedling discriminating device F faces the sensing conveyor C between the supply conveyor 10 and the complementary conveyor 11.
Has been arranged. As shown in FIGS. 11 and 12, the seedling discriminating device F includes two sets of cameras 55, 55 and a lighting device 56.5.
6 and an image processing device 57 that processes the video signals from the cameras 55 and 55. The camera 55 and the lighting device 56 are arranged so as to face each other with the sensing conveyor C interposed therebetween.
The camera 55 and the camera 55 are arranged so as to face the subject (cell molding seedling G) and have substantially the same height as the sensing conveyor C. Then, the improper cell-forming seedlings G are arranged symmetrically from the imaging position of the subject, photographed from two directions, and are biased or overlapped in the front-back direction.
That can be detected. The camera 55 is a CCD
A camera or the like is used to input a digital video signal to the image processing device 57, which is a microcomputer, to determine whether the image is good or bad. The illumination device 56 has a light source such as a high-frequency fluorescent lamp and a semi-transparent plate 59 made of a white acrylic plate or the like for diffusing light on the seedlings and arranged on the subject side. Then, in order to prevent the cell molding seedling G from shaking due to the influence of wind or the like at the time of shooting, or from being erroneously determined by ambient light, Case 6
Covered with 2.

Further, the image processing device 57 calculates from the photographed video signal whether or not the sprouting seedling G has sprouted from the set position and has grown to the set size, and the like to determine whether the seedling is proper. For example, when the image captured by the camera 55 is as shown in FIG. 10, the germinal axis 60 that has emerged from the pot center O of the seedling tray P is used.
The distance L1 to the position is calculated to determine whether or not the cell forming seedling G is lying within the set radius, and the cell forming seedling when the cell forming seedling G is tilted or deviated from the center and sprouting is removed. .

Also, the total height L2 of the cell-molded seedling G is measured and calculated to determine whether it is within the set height, and the total width L3 of the cell-molded seedling G is measured and calculated to determine whether it is within the set width. Calculations are made to remove cell-forming seedlings that are too large or small. In addition, the diameter L4 of the hypocotyl 60 at the set height is calculated to determine whether or not the seedling has grown to a diameter larger than the set diameter, so that even a seedling having a prescribed height or width can remove a seedling having a thin axis. By calculating the existence of multiple seedlings, we also remove multiple seedlings that have sprouted. Then, the height L5 of the cotyledon 61 is calculated to remove the atrophied seedling, and if the height of the cotyledon 61 is low, grafting may not be possible, and these can be discriminated. In addition, if the camera 55 is made to be capable of taking a color image and an image processing device is provided, it is possible to remove even if the leaves are dead, sick, or have insects. If all the conditions are calculated as described above, the cell 20 is transferred to the filling tray S as a proper cell-forming seedling, and the improper cell-forming seedling is not picked up in the seedling loading section E and the chain 20 is It is rotated and unsuitable seedlings are released.

Columns 2, 2 ... Are erected in front of and behind the supply conveyor 10 and the complementary conveyor 11 on the frame base H, and the horizontal frame 3 is provided between the upper ends of the columns 2, 2.・ 3
Is horizontally installed, the seedling extracting section B is arranged on the side surface of the left lateral frame 3, and the seedling loading section E is arranged on the side surface of the right lateral frame 3. Since the seedling extracting section B and the seedling loading section E have substantially the same configuration, the seedling extracting section B will be described. As shown in FIG. 3, the front-back raising / lowering mechanism of the seedling extracting section B is provided with a roller guide formed in an arc shape in a side view on a side surface of the horizontal frame 3 provided in the front-rear direction between the upper portions of the columns 2 and 2. A guide rail is arranged in the front-rear direction, a roller attached to the seedling picking support 21 is fitted to the roller guide, and a slider is fitted between the guide rail and the seedling picking support 21 so as to be slidable back and forth and up and down. However, a moving cylinder 16 is interposed between the seedling picking support 21 and the pillar 2.

Therefore, by expanding and contracting the moving cylinder 16, the seedling picking support 21 is moved in a slanting vertical direction along the seedling picking roller guide and the guide rail, and the seedling picking section B moves up and down and back and forth. The movements are performed at the same time so that they can reciprocate between above the sensing conveyor C and above the seedling tray P. The contracted position and the extended position of the moving cylinder 16 are detected by a sensor to detect when the seedling is taken out and when the seedling is temporarily placed.

Then, a pitch changing mechanism 13 is attached to the seedling picking support 21 via an elevating cylinder 17, and a chucking device for picking seedlings is attached to the pitch changing mechanism 13 according to the number of rows of pots of the seedling tray P. It is installed.
The pitch changing mechanism 13 narrows the gap of the chuck device above the seedling tray P in accordance with the pitch of the pot, and widens the gap above the sensing conveyor C in accordance with the pitch of the cups 9 ...

The structure of the chuck device is shown in FIGS. 5 and 6, and each chuck device has a pitch changing mechanism 1.
The mounting plate 41 is fixed to the head support 3 of FIG. 3, and the head support is slid according to the pitch of the pot or cup. Chuck opening / closing cylinder 4 on the mounting plate 41
9 is fixed, claw mounts 51, 51 are swingably mounted around the opening / closing fulcrum shafts 50, 50 at the lower part of the chuck opening / closing cylinder 49, and a claw mount is attached to the tip of the piston rod 49a of the chuck opening / closing cylinder 49. 51 ・ 51
One end is pivoted. The opening / closing cylinder 49 of the pawl opening / closing mechanism is constantly urged to a contracted state by a spring 53.

The upper and lower cylinders 42, 42 are arranged on the other side of the claw mounts 51, 51, that is, on the outer side in the front-rear direction.
Two chuck claws 5, 5 are integrally attached to the tips of the piston rods 42a, 42a of the upper and lower cylinders 42, 42 in parallel with the extending and contracting direction of the upper and lower cylinders 42, respectively. On one side of the front and rear, the middle part of the chuck claws 5, 5 is slidably supported by the support plate 52, and the lower part of the chuck claws 5, 5 is provided at the lower end of the support rod 47 extending below the support plate 52. It is supported by a seedling holder 46 so that it can slide up and down.

Further, the seedling loading section E is different in the support structure of the chuck device, and as shown in FIG.
The plurality of chuck devices are changed in pitch by the chuck device, and the chuck elevating cylinder 19 is vertically fixed on the support plate 41 on which the chuck device is fixed, and the chuck opening / closing cylinder 49 is attached to the tip of the piston rod of the chuck elevating cylinder 19. The chuck lifting cylinder 19 is fixed and guided by the guide rods 63, 63 so as not to swing, and the lower part of the chuck opening / closing cylinder 49 has the same structure as the seedling extracting part B.

With such a construction, when the cell-molded seedling G is taken out from the seedling tray P, the chuck claws 5 are located above the cell-molded seedling G, and the opening / closing cylinder 49 is kept in the contracted state so that the lifting cylinder 17 is moved. When extended, the seedling retainer 46 is located at the top of the pot and the upper and lower cylinders 4
When 2 is extended, the chuck claws 5 and 5 are attached to the support plate 5.
1, 51 and the seedling retainer 46, 46, and pierce the outside of the cell molding seedling G at an angle that matches the pot shape of the seedling tray P. When the lifting cylinder 17 is reduced in this state, The side surface of the root pot Ga can be lifted while being pinched and pinched, and the moving cylinder 16 can be extended to move above the cup 9 of the sensing conveyor C.

When the elevating cylinder 17 is extended above the cup 9, the cell-forming seedling G is lowered into the cup 9, and when the upper and lower cylinders 42 are contracted in this state, the chuck claws 5 are raised. At this time, the root pot Ga of the cell-shaped seedling G attaches to the chuck claws 5 and tries to rise, but is pressed by the seedling retainer 46, the cell-shaped seedlings G remain in the cup 9, and the chuck claws 5 and 5 are removed. Get out. Next, when the opening / closing cylinder 49 is extended to open the chuck claws 5, 5, the opening / closing cylinder 49 is completely separated from the root bowl Ga, and the temporary placement is completed. Then, the lifting cylinder 17 is reduced and the same operation as described above is repeated to transfer the cell-formed seedlings from the seedling tray P to the cup 9 of the sensing conveyor C.

Then, the temporarily placed cell-molded seedlings are conveyed by the sensing conveyor C, and the quality of the seedlings is judged on the way, and only the proper seedlings are chucked in the seedling loading section E and complemented from the cup 9. Transferred to tray S.
That is, when transferring the appropriate cell-molded seedling G from the sensing conveyor C to the complementary tray S, the moving cylinder is extended to position the seedling loading section E above the sensing conveyor C, and the seedling loading section E is conveyed by the sensing conveyor C. When the cell molding seedling is appropriate, the opening / closing cylinder 49 is extended to open the chuck claws 5, 5, the upper and lower cylinders 42 are also extended to project the chuck claws 5, 5, and in that state, the chuck elevating cylinder 19 is extended. Then, the lower parts of the chuck claws 5 and 5 are positioned on the sides of the cup 9 and the opening / closing cylinder 49 is contracted, so that the chuck claws 5 and 5 are rotated in the direction in which the lower ends of the chuck claws 5 are cut. The root pot Ga of the cell-forming seedling G is grasped by passing through 9e and 9e. Then, when the lifting cylinder 19 is contracted, the cell molding seedling G is lifted. Since multiple chuck devices move up and down independently, if there is an improper cell-formed seedling, the proper cell-formed seedlings will be sent in sequence until the beginning, and only the proper seedlings will be transferred from the poor side of each chucking device. Be chucked by.

When the cell forming seedlings are gripped by all the chucks, the moving cylinder is reduced to be positioned above the complementary tray S, and the chuck elevating cylinder 19 is extended again to extend the cell forming seedling G in the pot of the complementary tray S. When the upper and lower cylinders 42 are contracted, the chuck claws 5 are withdrawn, the root pot Ga of the cell-forming seedling G is pressed by the seedling holder 46, and the cell-forming seedling G is placed in the pot of the complementary tray S. Be loaded into. In addition, an inappropriate cell-molded seedling is discharged by a means such as blowing it off with air.

The seedling tray P stores cell-formed seedlings G after raising seeds, and the seedling trays P are sequentially placed on the rear part of the supply conveyor 10 and synchronized with the driving of the seedling extracting part B forward. And then transported. The supply conveyor 10 and the complementary conveyor 11 are flat belts and are driven by a motor (not shown). In the seedling filling device, seedling tray P
The complementary tray S and the complementary tray S are exactly the same, and the seedling tray P after the cell-shaped seedling G has been extracted can be used as the complementary tray S, but at that time, it is necessary to wash the seedling tray P to prevent infection of diseases. Further, in the case of a temporary planting device, a tray on which a temporary plant pot is placed is placed instead of the complementary tray S, and the pitch is changed accordingly.

The complementary conveyor 11 is loaded with the complementary tray S and is conveyed rearward from the front portion or forward from the rear in synchronization with the driving of the sensing conveyor C. That is, as shown in FIG. 2, when the supply conveyor 10 and the complementary conveyor 11 are configured to convey in opposite directions,
When the empty seedling tray P from which the cell-shaped seedling G has been taken out is discharged from the supply conveyor 10, it is supplied to the complementary conveyor 11 after cleaning to form a U-shaped transport path, and the tray can be efficiently transported. At this time, the seedling extracting section B is arranged so as to convey the cell-formed seedling G from the front step (upper side) of the supply conveyor 10 on the rear side of the sensing conveyor C to the cup 9 (lower side), and the seedling loading section E performs sensing. Cell-formed seedlings placed on the tray are arranged so as to convey the cell-formed seedlings G from the cup 9 (upper side) of the conveyor C to the seedling-complementary tray S on the rear-side (lower-side) complementary conveyor 11. G passes the lower part of the sensing conveyor C so as not to hit.

Further, as shown in FIG. 13, when the supply conveyor 10 and the complementary conveyor 11 are configured to convey in the same direction, the supply side is the rear side and the discharge side is the front side. Clearly, the supply conveyor 10 and the complementary conveyor 11 can have the same configuration. At this time, the seedling extracting section B is the cup 9 from the front side (advanced side) of the supply conveyor 10 on the rear side of the sensing conveyor C, similarly to the above.
The cell molding seedlings G are arranged to be conveyed to the (lower side). The seedling loading section E is the complementary conveyor 1 from the cup 9 (upper side) to the rear side (lower side) of the sensing conveyor C as described above.
In order to convey the cell-formed seedling G to the seedling supplement tray S on 1, the seedling loading section E is located on the front side of the sensing conveyor C. In this way, the cell molding seedlings G placed on the tray are prevented from passing through the lower portion of the sensing conveyor C and hitting them, and the upper surfaces of the supply conveyor 10 and the complementary conveyor 11 are brought as close as possible to the sensing conveyor C, and the height is increased. It is configured so that the center of gravity is suppressed to a low center of gravity.

[0028]

As described above, the present invention has the following advantages. That is, a feed conveyor that conveys a seedling tray that has raised cell-shaped seedlings, a seedling complementing conveyor that conveys a seedling tray that is loaded with appropriate seedlings, and a sensing conveyor that conveys cell-forming seedlings from the supply conveyor to a seedling complementing conveyor, Seedling extraction section that extracts cell-formed seedlings from the seedling tray on the supply conveyor and transfers them to the sensing conveyor, seedling loading section that takes out appropriate seedlings from the sensing conveyor and transfers them to the seedling tray on the seedling complementing conveyor, and cell molding Since the seedling compensation device was configured with the seedling discrimination device that determines the quality of the seedling by facing the sensing conveyor when transporting the seedlings, it is impossible to grow all the cell-formed seedlings raised in the seedling tray into uniform cell-formed seedlings. However, the seedling supplementing device of the present invention determines whether or not the cell-molded seedlings are appropriate within the set standard by the seedling discriminating device to determine whether the seedlings are appropriate. Only Le molded seedlings will be able to transfer the seedling tray on seedlings complementary conveyor, without sorting by hand, it can be efficiently transferred to sorted reliably in a short time.
And, since there is no inappropriate seedling, when the next step is a temporary planting device, it becomes possible to continuously transplant to a pot that is one size larger, and when the next step is a grafting robot,
Grafting can be done in one row or multiple rows at a time, and work efficiency can be improved.

Further, since the feeding conveyor and the seedling supplementing conveyor are conveyed in the same direction, the feeding side and the discharging side of the seedling tray are the same on both conveyors, and it is possible to have substantially the same configuration, which simplifies the design. , Easier to assemble.

Further, since the supply conveyor and the seedling complementing conveyor are conveyed in opposite directions to each other, when the same seedling tray is fed to the supply conveyor and the seedling complementing conveyor, a U-shaped conveying path can be formed. As a result, it is possible to continuously convey, and the conveying efficiency can be improved.

[Brief description of drawings]

FIG. 1 is an overall front view of a seedling filling device of the present invention.

FIG. 2 is a plan view of the seedling filling device.

FIG. 3 is a left side view of the seedling filling device.

FIG. 4 is a front view of a sensing conveyor.

FIG. 5 is a partial cross-sectional side view showing an opening / closing mechanism of the chuck device of the seedling extracting section.

FIG. 6 is a front view of the same.

FIG. 7 is a plan view of the cup.

FIG. 8 is a view taken along the line YY in FIG.

FIG. 9 is a front view of the cup.

FIG. 10 is a front view of a cell-forming seedling.

FIG. 11 is a side view of the seedling discrimination device.

FIG. 12 is a plan view of the same.

FIG. 13 is a plan view of a case where a supply conveyor and a seedling supplement conveyor are conveyed in the same direction.

FIG. 14 is a partial cross-sectional side view showing an opening / closing mechanism of the chuck device of the seedling loading section.

[Explanation of symbols]

 B Seedling Extracting Unit C Sensing Conveyor E Seedling Loading Unit F Seedling Discriminating Device G Cell Molding Seedling P Seedling Tray S Complementary Tray 10 Supply Conveyor 11 Complementary Conveyor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsuo Yasuda 1-32 Chayamachi, Kita-ku, Osaka-shi, Osaka Yanma Agricultural Machinery Co., Ltd.

Claims (3)

[Claims] 1. A supply conveyor for conveying a seedling tray containing cell-grown seedlings having raised seedlings, a seedling supplementary conveyor for transporting seedling trays loaded with appropriate seedlings, and a cell-formed seedling from the supply conveyor to the seedling supplementation conveyor. Sensing conveyor, and a seedling extraction unit that extracts cell-formed seedlings from the seedling tray on the supply conveyor and transfers them to the sensing conveyor, and seedling loading that takes out appropriate seedlings from the sensing conveyor and transfers them to the seedling tray on the seedling complementing conveyor Seedling supplementing device consisting of a section and a seedling discriminating device that faces the sensing conveyor and discriminates whether the seedlings are good or bad when carrying them. 2. The supply conveyor and the seedling complementing conveyor are arranged horizontally in parallel to each other, and the sensing conveyor is arranged in a direction perpendicular to the supply conveyor and the seedling complementing conveyor to form the supply conveyor and the seedling complementing conveyor. The seedling filling device according to claim 1, wherein the seedling filling device is configured to be conveyed in the same direction. 3. The supply conveyor and the seedling complementing conveyor are arranged horizontally in parallel to each other, and the sensing conveyor is arranged in a direction perpendicular to the supply conveyor and the seedling complementing conveyor to form the supply conveyor and the seedling complementing conveyor. The seedling filling device according to claim 1, wherein the seedling filling devices are configured to be conveyed in mutually opposite directions.