JP2511372Y2 - Seedling cutting device for grafting equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] In the present invention, a scion and a rootstock are cut from a predetermined position, and the cut surfaces are joined and fixed to produce a grafted seedling. More specifically, the present invention relates to a seedling cutting device for a grafting device in which a cutting blade for cutting a scion and a rootstock seedling is washed with a liquid agent in a mounted state.

[Prior Art] In recent years, most of the seedlings of fruit vegetables cultivated in facilities such as a glass room and a greenhouse are grafted seedlings. The grafting work for making the grafted seedlings is performed manually by using a part of auxiliary equipment. In view of such a current situation, the applicant of the present invention has, for some time, grasped the scion and the rootstock separately so that the hypocotyl is sandwiched, cut each at a predetermined position with a cutting blade, and join each cut surface. We propose a device that is fixed and automatically produces grafted seedlings.

[Problems to be solved by the device]

In the above grafting device, when the scion and rootstock seedlings are cut at a predetermined position by the cutting blade, seedling overflow and chips are attached to the cutting blade. Therefore, the sharpness of the cutting blade becomes poor, accurate cutting cannot be performed, and a clean cutting surface cannot be obtained. In particular, when the blade surface dries, seedling overflow and chips solidify on the blade surface, further reducing the sharpness,
There was a problem such as.

The present invention has been made to solve the above problems.

[Means for solving the problem]

In order to achieve the above-mentioned object, the present invention separately grasps a scion and a rootstock so as to sandwich the hypocotyl, cuts each at a predetermined position with a cutting blade, and fixes the cut surfaces by joining them. In a grafting apparatus for producing grafted seedlings, the cutting blade is washed with a liquid agent in the mounted state.

[Action]

According to the present invention having the above-described configuration, the cutting blade is always washed with the liquid agent in the mounted state, so that the overflow and chips of the cut seedlings are removed, and the sharpness of the cutting blade is maintained.
The cutting surface of the seedlings is kept smooth and cutting performance is maintained for a long time.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic plan view of the entire grafting apparatus, where reference numeral 1 is a seedling supply section, 2 is a scion processing section, 3 is a rootstock processing section, 4 is a seedling joining section, 5 is a seedling gripping body (clip) supply Part 6 is seedling adhesion
The discharge section and 7 are grafted seedling transport sections, respectively.

The seedling supply unit 1 supports a pair of a scion seedling cassette 8 and a rootstock seedling cassette 9 so as to rotate in a direction of an arrow at a predetermined interval. The cassettes 8 and 9 are substantially the same in configuration, and one of them (cassette 8 for scion seedlings) will be described, and the other (cassette 9 for rootstock seedlings) will be described by assigning the same reference numerals to common parts. Omit it. Hooki seedling cassette 8
Are arranged on the outer periphery of the disc portion 10 at a predetermined interval with a large number (20 in the drawing) of seedling support arms 11, and seedling support holes 12 are provided at the tip of each seedling support arm 11. ing.
Then, the scion seedling A and the rootstock seedling B are supported in the seedling support holes 12, 12 ,. Seedling support arm 11,1
Although not shown below 1 ..., when the seedlings A or B supported by the seedling support holes 12 are rotated by the rotation of the disk portion 10, the inertia causes the seedlings to sway or fall from the seedling support holes 12, An L-shaped sway preventer is provided to prevent delivery mistakes. Further, the scion seedling cassette 8 is configured to be attachable to and detachable from the rotary shaft 13 via a fitting portion 14.

And cassette 8 for scion seedlings (cassette 9 for rootstock seedlings)
Multiple sets are prepared and each seedling support hole is manually prepared in advance.
12, the scion seedling A or the rootstock seedling B is hung and supported so that the vicinity of the base of the petiole of the cotyledon serves as a support, and the cassette is replaced. As for the support direction of the seedlings with respect to the seedling support holes 12, in the scion seedling A, the cotyledon expansion direction is the rotational tangential direction, and in the rootstock seedling B, the cotyledon expansion direction is the rotation center direction, as shown in FIG. When supported so that they face each other, the grafted seedlings with the cuttings of the rootstock and the cut surface of the rootstock facing each other are adhered, and the cotyledon development direction of the rootstock intersects with the cotyledon development direction of the rootstock. It was predicted that it would have a favorable effect on the growth of the cotyledons, but it is possible to make grafted seedlings by changing the direction of the cotyledons, and there is no particular need to be particular about the direction of cotyledon development.

The rotary shaft 13 is adapted to rotate intermittently (or rotate synchronously) by a stepping motor (not shown), and the interval of the intermittent rotation is synchronized so as to be the mutual interval of the seedling support arms 11, 11. .

 The following description is for the case of intermittent rotation.

As shown in FIGS. 1 to 5 and FIGS. 7 to 16, the scion processing section 2 and the rootstock processing section 3 are scion seedlings supported in the seedling support holes 12 of the seedling supply section 1. A and rootstock seedlings B are taken over one by one, grasped and rotated, and the seedlings are cut at a predetermined position with a washed cutting blade so that their cut surfaces are brought into contact with each other. Therefore, the spike processing unit 2 and the root processing unit 3 rotate so that the cut surfaces are in contact with each other (in the embodiment, the rotation directions of the root processing unit 2 and the root processing unit 3 are opposite to each other. It is not necessary to stick to this rotation direction), the gripping position (height) is made different so that the scion seedling A is not below the rootstock seedling B, and the opening direction of the hand, which will be described later, is the opposite direction, and cutting of seedlings is performed. Since the cutting direction is changed so that the surface of the scoop A faces downward, and the surface of the rootstock B faces upward, the similar structure has the same name, and the detailed description thereof is omitted by using the same name and reference numeral. To do.

The scion processing unit 2 (rootstock processing unit 3) is a circular fixed disk.
A rotary shaft 17 is rotatably supported in the cylindrical support portion 15a of the bearing 15 through bearings 16 and 16, and a seedling transport rotary disc 18 is fixed to the upper end portion of the rotary shaft 17 and a gap ring is attached to the lower end portion of the rotary shaft 17. The output shaft of the stepping motor 20 is connected via 19. The seedling transfer turntable 18 has a projecting portion that divides a circle into three equal parts centering on the rotating shaft 17, and a fixed hand 21 and an L-shaped movable hand 22 are provided in pairs at the equally divided positions, respectively. 22 can be moved with respect to the fixed hand 21 by four guide rollers 23, and a spring locking piece 24 provided on the seedling transfer rotary disc 18
The return habit is given by the return spring 25 stretched between the and. On the other hand, on the outer peripheral portion of the fixed disk 15, arcuate cams 27 pivotally supported at one end by pins 26 are provided at two positions,
The other end of this cam 27 is a pin (air) provided on the fixed disk 15.
The cylinder 28 can be displaced between a position where the fixed disk 15 extends outward and a position where the fixed disk 15 extends inward. Then, the cam roller 29 provided on the movable hand 22 is brought into rolling contact with the cam 27, and the movable hand 22 is opened and closed with respect to the fixed hand 21, so that the scion A
(Rootstock seedling B) is grasped or released. In addition, urethane rubber 30 is attached to the seedling holding surfaces of the fixed hand 21 and the movable hand 22 that face each other.
The root axis of (root seedling B) is not damaged when it is held. In addition, above the seedling transfer turntable 18,
A disc-shaped protection plate 31 is provided.

The stepping motors 20 and 20 of the scion processing unit 2 and the rootstock processing unit 3 intermittently rotate by 1/3 rotation, respectively, and at each intermittent stop position, first, the seedling support holes 12 of the seedling supply unit 1 The scion seedling A and the rootstock seedling B supported by the hand are held by the hands 21 and 22, and then the scion seedling A and the rootstock seedling B held by the hands 21 and 22 are cut by the scion cutting device 32 and the rootstock. The device 33 cuts from a predetermined position with a cutting blade, and at the seedling joint portion 4, the cutting seedling A is on the top and the rootstock seedling B is on the bottom so that the respective cut surfaces face and approach each other. .

The scion cutting device 32 is attached to the output shaft 34a of the stepping motor 34, as shown in FIGS. 7 and 9.
A cutting blade holder 36 is provided at the tip of a rotating arm 35 that rotates counterclockwise, and a cutting blade (safety razor in this embodiment) 37 is attached to this holder 36. The cutting blade 37 is used for one half of one piece, that is, for four times. Further, the rotary arm 35 is provided with a hypocotyl retainer (roller in the embodiment) 38 which is located on the front side of the cutting blade 37 in the rotational direction and which presses the hypocotyl of the scion seedling A.

Further, the scion cutting device 32 is provided with a cutting blade cleaning mechanism 32a shown in FIG. 10 and FIG. This cutting blade cleaning mechanism 32a is provided with a pair of nozzles 32b for injecting the cleaning liquid from above and below the cutting blade 37 at the upper end position of the rotation locus of the cutting blade 37 rotated by the rotation of the rotary arm 35, and the nozzle 32b,
The cleaning liquid is supplied through the cleaning liquid tank 32c, the pump 32d, the valve 32e, and the hose 32f, and the valve 32e is controlled by the sensor 32g and the controller 32h. In addition, at the lower end position of the rotation path of the cutting blade 37, the cleaning liquid tank 32
The i may be provided so as to be immersed in the cleaning liquid tank 32i when the cutting blade 37 stops rotating, or the cleaning liquid may be allowed to pass while the cutting blade 37 is rotating.

On the other hand, an air cylinder 39 is provided supported on the outer periphery of the fixed disk 15 and the tubular support portion 15a of the spike processing unit 2, and the piston of this air cylinder 39 has the piston of the spike 21 held by the hands 21, 22. A hypocotyl support body 40 is provided to support the hypocotyls when the cutting device 32 cuts the hypocotyls. A balancer 41 is provided at the other end of the rotary arm 35.

The rootstock cutting device 33 is attached to the output shaft 42a of the stepping motor 42 as shown in FIGS. 14 to 16,
Cutting blade holder at the tip of the rotating arm 43 that rotates clockwise
44 is provided, and a cutting blade 45 is attached to this holder 44. In addition, a cotyledon retainer (roller) 46 that is located on the front side in the rotational direction of the cutting blade 45 and presses the cotyledon portion of the rootstock seedling B on the rotary arm 43.
Is provided. On the other hand, the seedling transfer turntable 18 of the rootstock processing unit 3
A disc-shaped cotyledon portion posture restricting body 47 that supports the cotyledon portion of the rootstock seedling B held between the hands 21 and 22 is provided on the upper side of. The cotyledon portion posture restricting body 47 may also serve as the protective plate 31.

The gripping body (clip) supply unit 5 is shown in FIGS.
As shown in FIGS. 20, 22, 23, etc., the clips 48 are radially arranged at equal intervals on the outer circumference of a clip supply disk 51 supported by a stepping motor 49 via a knob 50 so as to rotate in the vertical direction. A large number of clip receiving grooves 52, 52 ... (40 in this embodiment) provided are loaded by inserting one of the rear end portions thereof, and a plurality of supply discs 51 are prepared.
It can be exchanged.

The seedling adhering / discharging section 6 has an air cylinder 54 with a long stroke attached to the base side of the base 53, a piston rod 56 attached to its piston 55, and a support section 58 provided with the piston rod 56 at the rear end of the slide block 57. It is slidably supported on. A clip push-out portion 59 is fixed to the tip of the piston rod 56, and the clip push-out portion 59 has
A pointed cam 60 is attached to the upper side of the cam 60. A pair of beaks 61, 61 are rotatably supported at the tip of the slide block 57 via shafts 62, 62, and rollers 63, 63 are provided at the base ends of the beaks 60, 60. And a return spring 64 is installed between the rollers 63, 63. Then, the slide block 57 is
From the position shown in the figure, the tip of the beak 61 is the scion seedling A,
It can be moved to the left and right sides (see FIG. 19) of the opposite position of the rootstock seedling B, and also serves as a guide for the clip 48. A coil spring 65 is wound around the outer circumference of the piston rod 56. Further, although not shown, an air cylinder for discharging seedlings is provided below the seedling joining portion 4.

The grafted seedling transfer unit 7 is composed of a belt conveyor, and a container for accommodating the grafted seedlings to be transferred is provided at the end of the transfer.

Stepping motor for supplying seedlings, stepping motors 20, 20 for conveying seedlings, pin cylinder 23 for holding seedlings, air cylinder 39 for supporting scion hypocotyl, stepping motor 49 for supplying clips, stepping for cutting seedlings Motor 34,4
2, the power unit such as the air cylinder 54 for clip hanging, the pin cylinder 28 for releasing seedlings, the air cylinder for discharging seedlings, etc., in this embodiment, all use a stepping motor for the rotating mechanism and all for the reciprocating mechanism. An air cylinder is used. The stepping motor driver employs a driver that can freely adjust the rotation angle and rotation speed. A programmable controller is used as a control unit for controlling each of these operations for sequence control, and a timing chart thereof is shown in FIG. The control modes are "manual mode" where each part can be driven independently, "1 stock grafting mode" in which only one stock is grafted and stopped, "20 stocks continuous grafting" is performed.
There are 3 modes of "stock grafting mode". In addition, an emergency switch is provided to stop all mechanisms in the event of an abnormality.

Next, the operation of the grafting device having the above configuration will be described.

First, the seedlings and clips are prepared, but the rootstock seedling cassette B is placed in the rootstock seedling cassette 9 so that the cotyledon seedling A is tangential to the earstock seedling A in the earstock seedling cassette 8. The cotyledon expansion part is suspended in the seedling support hole 12 so as to face the radial direction, and the fitting part 14 is set on the rotary shaft 13. The clip 48 is formed in the clip receiving groove 52 of the clip supply disk 51.
And set it with the knob 50. Then, the control mode of the control unit is selected and the power switch is turned on.

When the power switch is turned on, a stepping motor (not shown) for driving the rotary shaft 13, a stepping motor 20 for driving seedlings (driving the rotary shaft 17), a pin cylinder 28 for gripping and releasing seedlings, Air cylinder 39 for operating the scion hypocotyl support 40, stepping motor 4 for supplying clips
9. The seedling cutting stepping motors 34 and 42, the clip hanging air cylinder 54, and the seedling discharging air cylinder operate according to the timing chart of FIG. That is, first, the seedling transfer rotary discs 18 and 18 of the scion processing unit 2 and the rootstock processing unit 3.
Starts to rotate in the direction of the arrow, and then, after 0.15 seconds, the disks 10 and 10 of the seedling supply unit 1 rotate in the direction of the arrow, and the seedling transfer rotary plate 18
0.25 seconds after the start of rotation, the pin cylinder 28 expands to cause the cam 27 to project, and the movable hand 22 is moved via the cam roller 29 to open the gap with the fixed hand 21 to open the seedling support arm 11 The pin cylinder 28 is contracted with the hypocotyls of the seedlings A and B suspended in the seedling support hole 12 of the above, and the urethane rubber 3 of the fixed hand 21 and the movable hand 22 is contracted.
Hold between 0 and 30.

The seedlings A and B gripped by the hands 21 and 22 are the seedling transfer turntable 18
Is rotated to convey it to a position facing the scion cutting device 32 and the rootstock cutting device 33, and stops. Then, the rotation arms 35 and 43 are rotated by the rotation of the stepping motors 34 and 42, and the cutting blades 37 and 45 cut off the scion seedling A with the cutting surface facing obliquely downward, and the rootstock seedling B is the cotyledon. One of them and the growing point are cut with the cutting surface facing obliquely upward.

When the scion seedling A is cut, a hypocotyl holder 38 is provided on the front side in the rotation direction of the cutting blade 37, and a hypocotyl support body 40 that is moved by an air cylinder 39 is provided on the fixed disk 15 side. Therefore, when the hypocotyl is cut, it can be stably cut at a predetermined position, and even if the hypocotyl is bent, it can be cut at a fixed position. That is, the hypocotyl retainer 38 and the hypocotyl supporter
When there is no 40, as shown in FIG. 8, when the shaft is straight a, it is cut at point P, but when the shaft is bent like b or c, the cutting point is up to the position. Although it may be displaced or cannot be cut or the cutting point may be shifted downward, such a situation can be avoided in the present invention.

Further, the cutting blade 37 is the nozzle 32b, 32b of the cutting blade cleaning mechanism 32a.
When passing through the gap, the cleaning liquid is sprayed from above and below and the cutting blade
Remove the seedling overflow and chips attached to 37 and moisten the blade. Since seedling cutting is performed intermittently, the waste of the cleaning liquid can be saved by controlling the valve 32e via the sensor 32g and the controller 32h in synchronization with the stop of the cutting blade 37. Even if the cleaning liquid is continuously ejected from the nozzles 32b, 32b and the cutting blade 37 passes between them, the effect does not change. Also, when the cutting blade 37 stops rotating, the cleaning liquid tank 32i
It may be immersed therein, or may be passed through the cleaning liquid while the cutting blade 37 is rotating. In this way, by cleaning the cutting blade 37 to remove seedling overflow and chips, and moistening the blade,
The cutting performance of the cutting blade 37 can be maintained for a long time. The cleaning agent is water,
Alcohol or other liquid may be used, and if you mix a cleaning agent with hormones and disinfectants for promoting seedling growth,
The growth of seedlings and the disinfection of the cut surface can be performed at the same time as cutting, which enables high-quality graft production.

In rootstock seedling B, as shown in FIG. 12 (a), shallow cutting where only one cotyledon is cut to leave a growing point,
The deep cutting shown in (c) and the neck cutting shown in (d) are both unfavorable, and it is desirable to cut one of the cotyledons and the growing point as shown in (b). Therefore, in the present invention, the cutting blade 45
Since the cotyledon holder 46 is provided on the front side in the rotation direction of and the cotyledon portion attitude regulator 47 is provided on the upper side of the seedling transport turntable 18, when the rootstock seedling B is cut, the cotyledons to be left are θ degrees as shown in FIG. Tilt,
It can be cut to almost a desired state.

The cuttings A and B of the rootstock B cut in this way are located at the top and bottom of the seedling joint part 4, with their cut surfaces facing each other as shown in FIGS. 13 (a) to 13 (c). It will be. In this embodiment, the so-called single-leaf cutting and grafting method is mechanized. For example, in the case of split grafting shown in FIG. 17, the sprouts shown in (A) are deepened so that the cotyledon of rootstock seedling B has both sides. If it hangs down, it cannot be clipped when it is mechanized. Therefore, as shown in (b), it is possible to mechanize by providing a cotyledon portion posture regulating body. Also, the 18th
In the call-up shown in the figure, as shown in (a), the scion seedling A
The root axis of the rootstock seedling B and the rootstock seedling B are broken and cannot be clipped, but mechanization is possible by controlling the postures of the rootstock seedling A and the rootstock seedling B with the cotyledon posture regulators as shown in (b). Becomes

In the seedling gripping body (clip) supply section 5, the seedling transfer rotary disk is used.
The clip 48 loaded in the clip supply disk 51 is rotated by the rotation of the stepping motor 49 0.5 seconds after the rotation of 18 starts.
Are sequentially supplied to the slide guide 57 of the seedling adhering / discharging section 6.

In the seedling adhering / discharging part 6, the piston 55 of the air cylinder 54
However, 0.5 seconds after the rotation of the graft transfer turntable 18 starts to extend, the piston rod 56 is moved. Piston rod 56
The clip push-out portion 59 pushes out the clip 48 and pulls it out of the clip supply disk 51, and the coil spring 65 moves the slide block 57 forward to move the slide block.
When 57 stops moving due to the stopper, the clip 48 moves forward while opening along the slide block 57, and at the same time, the cam 60 returns the rollers 63 and 63 of the beaks 61 and 61 to the return spring 64.
Separated against the projectile of. This makes the beak 61,6
The tip of 1 comes close to the cutting surface of the scion seedling A and the rootstock seedling B, and
1 Bring the clips together as shown in Figures (a) and (b), and clip 48
Hold by and stick the cut surface.

The grafted seedlings that have been clipped are opened at the same time when the hands 21 and 22 are opened, and the seedling discharge air cylinder extends to push out and discharge the grafted seedlings and drop them. A belt conveyor of the grafted seedlings transporting unit 7 is provided at the dropping position of the grafted seedlings, and the grafted seedlings are transported and stored in the container.

Among these series of operations, the operations of gripping, cutting, feeding clips and adhering the seedlings are performed almost at the same time when the rotation of the seedling transport turntable 18 is stopped.

[Effect of device]

As described above, according to the seedling cutting device in the grafting device of the present invention, since the cutting blade is always washed with the liquid agent in the mounted state, the overflow and chips of the cut seedling are removed, and the cutting blade The sharpness is maintained for a long time, and the cut surface of the seedling is also kept smooth, improving cutting performance and grafting conditions.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing an embodiment of the present invention, FIG. 2 is a plan view of a spike processing unit, FIG. 3 is a side sectional view of a spike processing unit,
FIG. 4 is a side sectional view of the scion processing section and the root processing section, FIG.
1 is a partially enlarged plan view of FIG. 1, FIG. 6 is a timing chart of a power unit, FIG. 7 is a side view of a scion cutting device, and FIGS. 8 and 9 are operation explanatory diagrams of the scion cutting device. FIG. 10 is a side view of the cutting blade cleaning mechanism, FIG. 11 is a partial perspective view of the same, FIGS. 12 (a) to 12 (d) are explanatory views of the root cutting device, and FIG. 13 (a).
~ (C) is an explanatory view of the seedling adhering portion, Fig. 14 is a plan view of the rootstock cutting device, Fig. 15 is a side view of the same, Fig. 16 is a plan view of the seedling adhering portion, Figs. 17 and 18. (A) and (b) are explanatory views showing another embodiment of grafted seedlings, FIG. 19 is a plan view of a seedling gripping body (clip) supply section, FIG. 20 is a partial plan view thereof, and FIG. 21 (a) ),
(B) is an explanatory view of the clip hooking, and (B) and (B) of FIGS. 22 and 23 are a partial plan view and a side view of the clip supply unit. 1 ... Seedling supply section, 2 ... Scion processing section, 3 ... Rootstock processing section, 4 ... Seedling joint section, 5 ... Seedling grasping body (clip) supply section, 6 ... Seedling adhering / discharging section , 7 ... Grafted seedling transportation section, 8 ...
… Cassette for scion seedlings, 9 …… Cassette for rootstock seedlings, 10 ……
Disc part, 11 …… Seedling support arm, 12 …… Seedling support hole, 13 ……
Rotating shaft, 14 …… Mating part, 15 …… Fixed disk, 16 …… Bearing,
17 …… Rotary axis, 18 …… Sapling transporting turntable, 19 …… Coupling, 20 …… Stepping motor, 21 …… Fixed hand,
22 …… Movable hand, 23 …… Guide roller, 24 …… Locking piece, 25 …… Spring, 26 …… Pin, 27 …… Cam, 28 …… Pin cylinder, 29 …… Cam roller, 30 …… Urethane rubber ,
31 …… Protection board, 32 …… Hoki cutting device, 32a …… Cutting blade cleaning mechanism, 32b …… Nozzle, 32i …… Cleaning liquid tank, 33 …… Rootstock cutting device, 34 …… Stepping motor, 35 …… Rotating arm, 36 …… Cutting blade holder, 37 …… Cutting blade, 38 …… Hypocotyl retainer, 39 …… Air cylinder, 40 …… Hypocotyl support, 41 ……
Balancer, 42 ...... Stepping motor, 43 …… Rotating arm, 44 …… Cutting blade holder, 45 …… Cutting blade, 46 …… Cotyledon holder, 47 …… Cotyledon position regulating body, 48 …… Clip, 49…
… Stepping motor, 50… Knob, 51… Clip supply disk, 52… Clip receiving groove, 53… Base, 54…
… Air cylinder, 55 …… Piston, 56 …… Piston rod, 57 …… Slide block, 58 …… Support section, 59 …… Clip pushing section, 60 …… Cam, 61 …… Beak, 62 ……
Axis, 63 …… Roller, 64 …… Return spring, 65 …… Coil spring, A …… Spring seedling, B …… Rootstock seedling.

Claims (1)

(57) [Scope of utility model registration request] 1. A scion and a rootstock are separately gripped so as to sandwich the hypocotyl, and each is cut at a predetermined position with a cutting blade, and the cut surfaces are joined and fixed to produce a grafted seedling. In the grafting device, the seedling cutting device in the grafting device is characterized in that the cutting blade is washed with a liquid agent in a mounted state.