JP2816515B2 - Grafting seedling cutting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cutting stems of rootstocks or spikelets for grafting plant seedlings such as vegetables, flowers and fruit trees.

[0002]

2. Description of the Related Art Conventionally, a series of conveyors are provided with a holding section for holding rootstock seedlings and a cutting section for cutting, and a tray for connecting a large number of pots vertically and horizontally in a seedling raising box is stored. A grafted seedling cutting method for transporting a box by the transport conveyor and cutting the seedling is already known.

[0003]

According to the known method for cutting grafted seedlings, a cutting process is performed in a state where many seedlings are arranged vertically and horizontally in a nursery box. Since the seedlings are different from each other, the pinching of the seedlings becomes inaccurate, and the seedlings are erroneously grasped. In addition, the inclination angles of the cut surfaces become uneven, the survival rate is reduced, and the seedlings are painfully grown. Further, if a plurality of seedlings are to be treated at the same time , it is difficult to arrange a plurality of treatment means because the space per one seedling is narrow, and the cost is significantly increased.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a multi-pot
3a is connected to each pot 3a of the strip-shaped tray 3 connected in a line.
The seedlings are planted, and the plurality of strip-shaped trays 3 on which the seedlings are planted are placed.
The belts accommodated in parallel in the nursery box 2 and accommodated in the nursery box 2
The seedling cutting device 3 removes the trays 3 one by one at the time of grafting.
5 and the seedling cutting device 35 supplies the belt-shaped tray.
The clamping claws 59 that open and close in order from the front row of
While holding the upper part of the seedling,
A knife 63 operated by a cylinder 65
The above-mentioned problem has been solved by automatically cutting a portion to be a joining surface at the time of wood diagonally .

[0005]

A plurality of pots are connected in a row to form a strip-shaped tray, and a plurality of rows are accommodated in a seedling box in parallel, and the seedling box is transferred to the starting end of the cutting step. the drawer One not a single row, seedling cutting device is supplied strip
Grafting process in which the upper part of the seedling in the front row of the tray is pinched by the pinching claws, and in this state , the knife is automatically cut diagonally, and after releasing the pinching, the rootstock seedling is joined to the cutting surface by the scioning process. The scion is recovered and moved to the grafting process.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. At the end of a supply step A, a cutting step B for a rootstock or a cutting step B ′ for a splint having the same cutting section but different post-processing. The starting end is continued, and in the supply step A, the feeding conveyor 1 is constituted by a roller conveyor, and is inclined downward such that the loaded seedling raising box 2 moves by its own weight. The upper part of 3a ... is connected
A plurality of rows of strip-shaped trays 3 connected in a row are stored in parallel, the side wall of the seedling raising box 2 is low, and the upper connection portion of the stored tray 3 has a height such that it slightly protrudes upward. .

[0007] A pair of right and left transfer chains 6, 6 of the supply device 5, which is the final stage of the supply process A, are attached to both ends of a pair of front and rear shafts 8, 8 supported on the supply frame 7 via bearings. It is hung on a sprocket 9... And has a receiver 10 at an appropriate interval in its length direction. The shaft 8 on the lower side in the supply direction is connected via a motor 11, a coupling 12, a reduction gear 13 and a chain 14. It is driven to be closer to the start end of the transport chains 6 and 6 (a portion substantially corresponding to the start end of the transport path in the cutting process B for cutting stock or the cutting process B ′ for spikes).
A hydraulic (or air) cylinder 18 and sensors 16 and 16 mounted on a horizontal rail 15 integrated with the supply frame 7 are arranged. A rod of the cylinder 18 has a pair of stopper pins 17 and 17 is mounted, and the cylinder 18 is connected to the stopper pin 1 when the sensors 16 and 16 are not detected.
7 and 17 are made to protrude above the transporting surface, so that the nursery box 2 is received.

When the sensor 16 detects the seedling raising box 2, the motor 11 stops to stop the transportation, and at the same time, the cylinder 18 extends to move the stopper pins 17, 17 downwardly below the transportation surface, and thereafter, , The motor 11 operates intermittently, whereby the transport chain 6 is rotated at the same pitch as the width of the tray 3 and in synchronization with the tray 3 drawer in the cutting process B for the rootstock, whereby the frontmost tray 3 is rotated.
Are successively opposed to the start end of the cutting process, and when the tray removal of one seedling raising box 2 is completed and the sensor 16 is not detected, the stopper pins 17 and 17 project to the receiving position, and the motor 11 rotates continuously. The seedling raising box 2 is pushed out and conveyed, and at the same time, the next seedling raising box 2 is rapidly transferred and pressed against the stopper pins 17 to position it in a certain posture. At this time, since the sensors 16 and 16 detect the seedling raising box 2, the stopper pins 17 and
17 is retracted downward, and the transport chains 6 and 6 resume intermittent transport. Note that a level stocker 19 is provided on the discharge side of the transport chain 6.

In the rootstock cutting step B, a smooth strip-shaped sliding guide plate 22 is provided on a substantially horizontal main frame 21 having a plurality of columns 20,. 23, a first transport block 25 is provided on one side of the main frame 21, and a second transport block facing the main frame 21 is provided on a support member 26 erected at an intermediate portion and an end portion on the other side. The block 27 is mounted, the first lifting cylinder 30 is mounted on a slide plate 28 attached to the first transport block 25, and the piston of the first advance / retreat cylinder 31 mounted on the upper part of the first lifting cylinder 30 is viewed in plan. Since the transport claw 32 forming an L-shape is attached to the
When the first elevating cylinder 30 is actuated, it moves up and down, and when the first advancing and retreating cylinder 31 is actuated, it moves forward and backward in a direction orthogonal to the transport direction in plan view.

When the slide plate 28 is positioned at the end of the supply step A and the first reciprocating cylinder 31 is pushed out, the transport claws 32 are moved from the X position in FIG. 5 to the end pots 3a, 3a. When the first lifting cylinder 30 is extended in this state, the transport claw 32 rises as shown by the dashed line and lifts the end of the tray 3, so that the first transport block 25 is operated in this state. (1) After slightly pulling in the direction, when the first raising / lowering cylinder 30 is contracted to lower the transport claws 32, the belt-shaped tray 3 rides on the sliding guide plate 22 over the side plate of the seedling raising box 2. When the first transport block 25 is further operated in this state, the bottom surface of the tray 3 slides on the slide guide plate 22, and the side portions are held by the guides 33 on both sides so as not to fall down. Cutting equipment Move to the right beside of 35.

The second transport block 27 includes a support member 26
A second lifting cylinder 39 is connected to a piston of a second reciprocating cylinder 38 mounted on an upper sliding plate 37 which is mounted on an upper frame 36 fixed to the upper frame 36 and moved back and forth by the second transport block 27, The transport claw 40, which is L-shaped when viewed from the transport direction connected to the piston of the second lifting cylinder 39 via a spring, inherits the tray 3 transported by the first transport block 25, and performs a cutting process B for the rootstock. When shifting to the recovery process C on the lower side, the tray 3
Is lifted up and pulled over the side wall of the nursery box 2 waiting.

The seedling cutting device 35 disposed in the middle of the first transport block 25 comprises a seedling posture correcting portion 41 and a cutting portion 42, which are connected to a support frame 43 having an upper portion connected thereto.
And a scissor-shaped claw 45 that curves and holds the circumference of the seedling gently, and a chuck 46 that opens and closes it. And a cylinder 48 supporting the chuck 46 integrally with the plate 47 via a mounting plate 47a, and a motor 49 mounted on the upper end of the support frame 43 on the side thereof is interlocked with the coupling 50 and the screw rod 51. Since the nut 52 fixed to the plate 47 is screwed to the screw rod 51, the claw 45 is raised and lowered when the motor 49 is driven to rotate forward and reverse, and the claw 45 is moved when the cylinder 48 is extended and contracted. Moves forward and backward with respect to the transported seedlings.

The cutting section 42 has a lifting device (motor 49, coupling 50, screw rod 51 and nut 52) similar to that described above.
3 is fixed, and a movable frame 56 that moves forward and backward is mounted on a moving frame 56 that moves back and forth by a slide plate 55 on the support plate 53, and is sandwiched by an intermediate portion of a mounting plate 58 that hangs down from a piston of the cylinder 57. Chuck 6 having claws 59
Fixed at 0 and inclined about 45 degrees protruding from the lower end (increase it more in order to make the angle of the cut surface of the stem gentler)
The pinion 62 as shown in FIG.
A knife 63 which rotates integrally with the shaft is supported by the pinion 62.
The rack 64 is moved forward and backward by the cylinder 65, and in conjunction with this, the knife 63 turns back after cutting the stem of the seedling diagonally. Sensors 66 are mounted on the upper end of a U-shaped frame 66a having one end fixed to the support frame 43 so as to face each other.

When the foremost pot is conveyed to the site corresponding to the seedling cutting device 35 and the sensor 66 detects the stem of the seedling, the conveying claw 32 is moved to the first conveying block 2.
5 is temporarily stopped, the cylinder 48 is operated and the claw 45 is opened, advances toward the base of the stem of the seedling, and the chuck 46 is operated, so that the claw 45 is closed so as to surround the stem,
Next, the left and right motors 49, 49 are started synchronously, whereby the claw 45 is raised together with the plate 47 and the chuck 46 in the closed state, so that even if the stem of the seedling is inclined, it is corrected to a substantially upright state, Sensor 66 is cotyledon (two leaves)
Is detected, both motors 49 and 49 stop, so that the claw 45 holds the seedling in the posture corrected state, and then the cylinder 57 pushes out the holding claw 59 in the open posture, and the chuck 60
When the pinching claws 59 pinch the upper part of the cotyledon by operating, the claws 45 of the seedling posture correcting section 41 are opened and retreated by the cylinder 48, and then the first transport block 25 and the slide plate 55 Is moved at the same speed by one pot 3a, and at this moved position, the cylinder 65 is activated to rotate the knife 63, and the knife 63 cuts a portion close to the upper part of the cotyledon of the seedling. In the meantime, the seedling posture correction unit 41 performs the above-described posture correction on the next seedling of the pot 3a, and the cutting unit 42 performs the cutting process, and
5, and the seedling posture correcting section 41 clamps the stem of the seedling whose posture has been corrected as described above. The cut ear part is dropped into a box arranged below. This pitch conveyance cutting is repeated by the number of pots in the tray 3, and when it is completed,
The first transport block 25 returns and operates to pull out the next tray 3 from the supply device 5.

The cylinders 38, 39 of the second transport block 27 operate on the tray 3 thus cut, whereby the transport claws 40 enter between the pots 3a, 3a and hook the front end pot 3a. Then, they are conveyed in that state and stored one by one in the empty seedling raising boxes 2 waiting in the collection step C.

Next, a device for processing the seedling box 2 in the collecting step C will be described. The loading device 68 for sending the empty seedling box 2 containing the cut tray 3 to the end of the transport path is provided by the feeding device 68. The loading device 70 for loading the seedling box 2 loaded with the trays 3... On the transport start end side of the loading device 68 has two receiving claws 71,
Two upper and lower fulcrum shafts 73, 7 having 71, 72, 72
4 are pivotally supported on both sides of a frame 77 opened only on the receiving side, and a pair of arms 75 projecting from the ends of their fulcrum shafts 73 and 74 are connected to an upper rodless cylinder 76a and a lower rodless cylinder 76b. At the start of the operation, a plurality of empty seedling raising boxes 2 are housed in the guide plate 77a inside the frame 77, and the lower receiving claws 72 are provided on the bottom surface of the lowermost seedling raising box 2. Engage to support all the seedling boxes 2... And have the same effect as the above-mentioned stopper pin 17, and the upper receiving claws 71. There is a nursery box 2 which faces a small gap and on which the cut trays 3 transported by the second transport block 27 are successively drawn in on the transport chains 6 and 6 further below. (Not shown) is slightly before the transport route (The position where it is not detected if one pitch is conveyed immediately after the box 2 is full), so that the conveyance chains 6 and 6 are detected by the motor 11 while the tray is being pulled in, at the same pitch as the width of the pot 3a, and withdraw timing. When the nursery box 2 is full, the sensor 16 is not detected and the motor 1 of the loading device 68 is rotated.
1 continuously rotates and unloads the full nursery box 2, and during that time, the lower receiving claws 72 are opened, so that the lowermost nursery box 2 is transported on the transport chains 6, 6. 2 from below
The second seedling box is received by the upper receiving claws 71..., And when the sensor 16 detects the transported seedling box 2, the motor 11 is stopped once, then intermittently rotated to successively receive the tray 3, and the lower seedling box is sequentially received. When the upper receiving claws 72 are opened after the receiving claws 72 are closed, the seedling raising boxes 2
Is lowered by one step and is received by the lower receiving claws 72.

Referring to FIG. 12, the processing steps of the scion are shown. The supplying step A 'and the cutting step B' for the scion are substantially the same as the supplying step A and the cutting step B for the rootstock. However, in the cutting process B ′, the slide plate 55 of the cutting section 42 cuts the moving frame 56 after the completion of the cutting process.
Instead of returning immediately as in the case of rootstock processing, the robot is further moved in the (b) direction onto the sorting box 78 (also shown in FIG. 4). During this movement, the sorting device (leather sensor, photoelectric sensor, or infrared ray) is used. The sorting is performed by an appropriate sorting device such as a sensor), and stops above any of the storage compartments of the sorting box 78, where the holding claws 59 are opened, so that the scions fall into the sorting box 78 via a chute or the like. After that,
The cutting unit 42 returns to a position facing the seedling posture correcting unit 41, during which the cutting unit 42 grasps and inherits the stem of the seedling whose posture has been corrected by the seedling posture correcting unit 41, and performs the cutting and cutting of the seedlings for one pot. When the processing of one tray 3 is completed, the tray 3 is conveyed to the end by the conveyance claw 40 and collected in the tray collection box 79.

The scions and rootstocks obtained in this way can be used in an automatic grafting device or in a previously proposed Japanese Patent Application No. Hei 4-31274.
When grafting is performed by the grafting device of No. 7, etc., the tray 3 of rootstock seedlings is once collected in the nursery box 2 as described above, or is directly sent from the rootstock seedling cutting step B to the grafting step without collection. But it is good.

[0019]

According to the present invention, a large number of pots 3a are connected in a line.
Plant the seedlings in each pot 3a of the tied strip-shaped tray 3, and
A plurality of strip-shaped trays 3 on which seedlings are planted are arranged in a nursery box 2
And the strip-shaped tray 3 housed in the nursery box 2 is connected.
Take out one row at a time, and supply it to the seedling cutting device 35
So, before the grafting, for example, raising seedlings or rootstock
For management and transportation, as in the past, seedlings were stored in the nursery box 2.
It can be handled in a densely planted and economical form
It is possible to cut seedlings at the time of grafting.
And take out the strip-shaped trays 3 from the
The seedlings are released from dense planting by supplying
It is possible to perform cutting treatment of seedlings in a form that can provide cutting space
it can. Also, the seedling cutting device 35 is provided with the supplied strip-shaped tray.
By the pinching claw 59 that opens and closes in order from the front row 3 seedlings
While holding the upper part of the seedling,
The knife 63, which is actuated by the
Sometimes the part that will be the joining surface is automatically cut diagonally,
Cutting angle to stem, such as those that are cut manually
Do not become uneven or damage other seedlings.
In addition, cutting of scion or rootstock can be performed with high efficiency.
Wear.

[Brief description of the drawings]

FIG. 1 is a plan view showing an outline of a rootstock seedling cutting step.

FIG. 2 is a plan view of the feeding / supplying device.

FIG. 3 is a side view of the same.

FIG. 4 is a plan view of the cutting device.

FIG. 5 is a front view of the same.

FIG. 6 is a cross-sectional view of a transport unit.

FIG. 7 is a cross-sectional view of a cutting section.

FIG. 8 is a plan view of a knife driving unit.

FIG. 9 is a front view of the collection device.

FIG. 10 is a side view of the same.

FIG. 11 is a transverse sectional view of the same.

FIG. 12 is a schematic diagram of a scion cutting step.

[Explanation of symbols]

 A, A supply process B cutting process for rootstock B 'cutting process for scion 2 seedling box 3 tray 5 feeding device 16 sensor 22 sliding guide plate 23 raised guide portion 25 first transport block 27 second transport block 28 sliding Plate 30 First ascent / descent cylinder 31 First ascent / descent cylinder 32 Transfer claw 35 Seedling cutting device 38 Second ascent / descent cylinder 39 Second ascent / descent cylinder 41 Seedling posture correction part 42 Cutting part 59 Nipping claw 63 Knife 70 Loading device

Claims (1)

(57) [Claims] 1. A belt in which a number of pots 3a are connected in a line.
Seedlings are planted in each pot 3a of the tray 3 and the seedlings are planted.
The plurality of strip-shaped trays 3 stored in the nursery box 2 in parallel,
At the time of grafting, the band-shaped tray 3 accommodated in the nursery box 2 is
Rows are taken out and supplied to the seedling cutting device 35, and
The holder 35 is arranged in order from the front row of the supplied tray 3
When the upper part of the seedling is pinched by the pincer 59 that opens and closes,
In addition, in this seedling holding state, the cylinder 65 operates.
Knives 63 that are used as grafting surfaces during grafting
A method for cutting grafted seedlings, characterized by automatically cutting diagonally .