JP3134457B2 - Grafted seedling production equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved grafted seedling production apparatus for producing grafted seedlings by automatically supplying and bonding rootstock seedlings and spikelets.

[0002]

2. Description of the Related Art A conventional grafted seedling manufacturing apparatus is disclosed in, for example, Japanese Unexamined Patent Publication No. 2-107125, in which a seedling rest on which a rootstock seedling and a spikelet seedling are placed is placed on each of the seedling rests. A transport mechanism that grips and transports each seedling separately and intervenes in the transport path of each transport mechanism, and cuts one cotyledon portion of the cotyledon of the rootstock seedling and the hypocotyl portion of the scion seedling that are transported. It comprises a cutting mechanism and a seedling bonding mechanism that makes both cut surfaces of the stock and scion grasped by both transport mechanisms face each other at a predetermined position, and bonds and fixes them with clips.

[0003]

The seedling holder of the conventional apparatus is composed of a plate having a slit, and the hypocotyl of the seedling is inserted into the slit, and the cotyledon development base is suspended from the slit. Was. This conventional seedling holder has the advantage that the lower surface of the cotyledon can always be arranged at the height of the slit even in various seedlings, and the cutting and bonding accuracy can be improved.

[0004] However, in some rootstock seedlings and earlings, the petiole portion may protrude outward. In addition, the rootstock seedling may be a bent seedling or a seedling with an unevenly distributed center of gravity.

In these cases, when the seedlings are held from the left and right sides by the slits, the hypocotyl of the seedlings is tilted due to the inclination of the seedlings due to the overhanging petiole, and the transport mechanism cannot grip the seedlings. Or, even if it can be grasped, there is a problem that the displacement of both cut surfaces occurs when the rootstock seedling and the scion seedling are bonded, which causes both seedlings not to take root.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in order to solve the problem. An apparatus for manufacturing a grafted seedling capable of reliably performing a grafted seedling manufacturing process by preventing an obstacle caused by the inclination of a seedling. The purpose is to provide.

[0007]

In order to achieve the above object,
The present invention is configured as follows.

According to a first aspect of the present invention, there is provided a rootstock seedling holder for holding rootstock seedlings, a headstock seedling holder for holding earlings, and a rootstock seedling waiting in the rootstock seedling holder. A rootstock transport mechanism that grips and transports to the grafting position, a scion transporting mechanism that grips a scion seedling waiting in the scion seedling holder by a gripping means and transports the seedling to the grafting position, and the two transport mechanisms. A cutting mechanism that cuts a predetermined portion of each seedling conveyed to the grafting position, and an adhesion mechanism that bonds both cut surfaces of the stock and scion conveyed to the grafting position by the two conveyance mechanisms, At least one of the rootstock seedling holder and the scion seedling holder has a slit for suspending the vicinity of the cotyledon deployment base on the lower surface of the cotyledon of the seedling, and the petiole of the seedling fits into the slit. This is a grafted seedling production apparatus in which a notch is formed.

According to a second aspect of the present invention, there is provided a rootstock seedling holder for holding rootstock seedlings, a rootstock seedling holder for holding earlings, and a rootstock seedling waiting in the rootstock seedling holder. A rootstock transport mechanism that grips and transports to the grafting position, a scion transporting mechanism that grips a scion seedling waiting in the scion seedling holder by a gripping means and transports the seedling to the grafting position, and the two transport mechanisms. A cutting mechanism that cuts a predetermined portion of each seedling conveyed to the grafting position, and an adhesion mechanism that bonds both cut surfaces of the stock and scion conveyed to the grafting position by the two conveyance mechanisms, A grafting seedling manufacturing apparatus comprising a rootstock seedling conveyed to a grafting position by a rootstock conveying mechanism, and a contact member to be contacted with each of upper and lower sides of the gripping means.

[0010]

According to the present invention, when rootstock seedlings are supplied one by one to the rootstock seedling holder, the rootstock transport mechanism grasps the seedlings and transports them to the grafting position, while the rootstock seedlings are fed one by one. When supplied to the scion seedling holder, the scion transport mechanism grips the seedling and transports it to the grafting position. Each seedling being transported by both transport mechanisms is cut at a predetermined portion by a corresponding cutting mechanism, and when the stock and scion come to the grafting position, both cut surfaces are bonded by an adhesive mechanism to produce a grafted seedling. .

In the first invention, at least one of the rootstock seedling holding tool and the scionling seedling holding tool is provided with a slit for suspending the vicinity of the cotyledon development base on the lower surface of the cotyledon of the seedling, and the slit is provided with the seedling. The petiole formed a notch to be fitted. Therefore, when a seedling is suspended on this seedling holder,
Since the protruding petiole fits into the notch, the inclination of the seedling can be prevented.

In the second invention, the rootstock seedlings transported to the grafting position by the rootstock transport mechanism are provided with contact members to be brought into contact with the upper and lower sides of the gripping means, respectively. Therefore, since the rootstock seedling conveyed to the grafting position is positioned at three points of the gripping means and the upper and lower contact members, it is possible to prevent an adhesion error due to the inclination of the seedling beforehand.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 3, when the rootstock seedlings are supplied one by one to the rootstock seedling holder 21 as shown in FIG. 3, the rootstock transport mechanism 31 grasps the seedlings. Grafting position A
Conveyed on the other hand, while the scion seedlings are held one by one.
Is transported to the grafting position A by gripping the seedling. At the cutting positions B1 and B2, the seedlings being conveyed by the two conveying mechanisms 31 and 32 have their predetermined portions cut by the rotation of the cutting blades 46 and 46 of the corresponding cutting mechanisms 41 and 42, respectively, and the cut stock is cut. When the scion reaches the grafting position A, the cut surfaces of the two are cut and supplied by the seedling bonding mechanism 51 and bonded, and the bonded grafted seedling is dropped and collected.

Referring to FIG. 4, a middle column 2 constituting a machine frame is shown.
The mounting plate 4 is fixed to the front surface of the mounting plate 4, and the rootstock side members, that is, the rootstock seedling holder 21, rootstock transport mechanism 31, and rootstock cutting mechanism 41 are integrally mounted on the front surface of the mounting plate 4. Attach the rootstock side support 5 to be mounted. The stock side support 5 is composed of a horizontal portion 5a and a vertical portion 5b that is bent down from the rear end of the horizontal portion 5a.
The support rods 6, 6 for suspending the vehicle 1 are projected forward. The rear ends of the support rods 6, 6 are made to protrude rearward from the rear end of the horizontal portion 5a, and protrude rearward through the through holes 4a, 4a in the upper part of the mounting plate 4.

A rootstock seedling holder 21 is mounted on the vertical part 5b of the rootstock-side support body 5, and a base 31a of a rootstock transport mechanism 31 is fixed to the lower surface of the horizontal part 5a in a suspended manner. A stock cutting mechanism 41 is mounted in front of the support rods 6,6.

Then, the vertical portion 5b of the stock support 5 is bolted to the mounting plate 4. C1 is an adjustment mechanism for positioning the stock support 5 with respect to the mounting plate 4.
A U-shaped frame plate 8 is mounted on the upper end on the back side of the mounting plate 4, and adjustment screws 9, 9 are screwed in from the left and right sides of the frame plate 8, and the through holes 4 are formed.
The support rods 6 and 6 integrated with the stock-side support 5 inserted into the a and 4a are brought into contact with the rear ends from the side. Therefore, the rotation of the adjusting screws 9 enables the left and right positions of the stock support 5 to be positioned.

On the other hand, the scion side support 15 is formed symmetrically with respect to the stock side support 5 and assembled to the machine frame (see FIG. 5). That is, the scion seedling holder 22, the scion transport mechanism 32, and the scion cutting mechanism 42 are attached to the scion support 15 and the adjusting mechanism similar to that used when the stock support 5 is fixed to the mounting plate 4. Then, the support 15 is fastened to the mounting plate 4 with the fixing bolt 7.

The rootstock seedling holder 21 includes an upper holding plate 23 having a slit 23a for suspending and holding the cotyledon deployment base of the rootstock seedling 3, and a slit 24a for inserting the hypocotyl part of the rootstock seedling 3. And a vertical mounting portion 2 for connecting the upper holding plate 23 and the lower holding plate 24 to each other.
5

As shown in FIG. 1, the spikelet seedling holder 22 is
An upper holding plate 72 having a slit 71 for suspending and holding the cotyledon developing base 4a (see FIG. 2) of the hogi seedling 4, and a lower holding having a slit 73 for inserting the hypocotyl portion 78 of the hogi seedling 4. It comprises a plate 74 and a vertical mounting portion 75 for connecting the upper holding plate 72 and the lower holding plate 74. The slit 71 of the upper holding plate 72 is provided with a notch 76 in a direction orthogonal to the insertion direction of the spikelet 4. The notch 76 has an appropriate size to which the petiole 77 (see FIG. 2) of the scion seedling 4 fits.

The stock transport mechanism 31 is, as shown in FIG.
The mounting frame 33 is attached to the tip of the support shaft 33a of the rotation cylinder 31a.
c, the reciprocating cylinder 36a is attached via its support shaft 3
The reciprocating cylinder 36a is configured to be able to rotate 180 degrees around the center 3a. Then, a pair of openable and closable fingers 35a for grasping the rootstock is attached to the distal end of the rootstock transfer arm 34a, which can protrude and retract, of the reciprocating cylinder 36a via the L-shaped stop plate 11. These fingers 35a
A soft material such as a sponge is attached to the opposing holding surfaces to prevent damage to the seedlings 3 and 4. Root transfer mechanism 3
1 is attached to the lower surface of the horizontal portion 5a of the support 5 in a suspended manner by fixing the rotation cylinder 31a.
A cutting guide 37a having a function of assisting cutting when cutting the rootstock 3 is attached to the mounting frame 33c.

The scion transport mechanism 32 is configured substantially symmetrically to the stock transport mechanism 31. That is, the cylinder 36b is attached to the tip of the support shaft 33b of the rotation cylinder 31b via the attachment frame 33d, and the cylinder 36b is configured to be able to rotate 180 degrees about the support shaft 31b. Then, a pair of left and right fingers 35b for holding the scion is attached to the tip of the scion transport arm 34b of the cylinder 36b via the L-shaped stop plate 12. The scion transport mechanism 32 is attached to the lower surface of the horizontal portion 15a of the scion support 15 in a suspended manner by fixing the rotation cylinder 31b. A cutting guide 37b having a function of assisting cutting when cutting the scion seedlings 4 is formed integrally with the mounting frame 33d.

The stock cutting mechanism 41 is provided in the course of the rotation of the transfer arm 34a of the stock transfer mechanism 31. That is, as shown in FIG.
A motor 44 such as a stepping motor is fixed to a mounting plate 43 slidable back and forth at a front position of
A cutting arm 45 is mounted on the rotating shaft of the motor 44, and a cutting blade 46 and a roller 47 for restraining cotyledons are attached to the tip of the cutting arm 45. A top 48 is fixed to the mounting plate 43, and an adjustment bolt 49 is screwed into the top 48, so that the position can be adjusted by rotating a grip 49a.

The scion cutting mechanism 42 is, as shown in FIG.
It is configured to be substantially symmetrical with the stock transport mechanism 41, and the support rod 16,
A vertically slidable mounting plate 83 which is suspended at a front position of 16
Further, a motor 84 is fixed, and a cutting arm 87 having a cutting blade 85 and a roller 86 is axially mounted on a rotating shaft of the motor 84.

Reference numeral 80 denotes a root mortar stop plate attached to the scion cutting mechanism 42. The root halting stop plate is attached to the scion transporting mechanism 32 so as to block the moving path of the root rot 81 of the scion seedlings 4 conveyed to the scion transport mechanism 32. 3
4b is arranged along the stop position at the time of cutting. In addition, a slope 82 is formed below the root mortar stop plate 80 to guide the ejection of the unnecessary cut portion of the scion.
A discharge port (not shown) is connected to the lower end of 2.

The support shaft 33a of the rotation cylinder 31b projects from the horizontal portion 5a of the stock support 5 to the upper surface.
Connected to the support shaft 33a are the rootstock transport arm 34a, the rootstock seedling holder 21, the rootstock cutting mechanism 41, and the turning stop mechanism 20 that should stop at a predetermined timing at each rotation position of the grafting position A. The swivel transfer arm 32 is also provided with a similar turning stop mechanism 30.

The seedling bonding mechanism 51 includes a bowl 52 (see FIG. 3).
A guide rail 55 formed by cutting out the center of the upper side surface of the rectangular cylinder in the length direction is connected to a take-out portion of a vibration type part feeder 54 having a spiral rising path 53 provided along the inner surface of Further, near the distal end of the guide rail 55, as shown in FIG.
a. A groove for releasing the spring portion 62c of the clip 62. In the upper part of the front end of the guide rail 55,
As shown in FIG. 7, there is provided a U-shaped mounting body 56b composed of both side plates and a rear plate, and an extrusion cylinder 56 for supplying the clips 62 to the grafting position A one by one on the back surface of the mounting body 56b. To the front. A pushing piece 57 to be engaged with the rear end of the clip 62 is attached to the tip of the pushing cylinder 56, and the tip of the pushing piece 57 is immersed in the guide rail 55.

The extruded piece 57 is formed by bending a flexible plate, and as shown in FIG. 8, includes a suppression surface 57b and a clip 62 which constantly urge the tip shoulder 62a of the clip 62 downward. It has a pushing surface 57c for pushing and a guiding slope 57d for avoiding the tip shoulder 62a of the clip 62 of the next order when the cylinder 56 is retracted.

On the lower surface of the front end of the seedling bonding mechanism 51, L
A letter-shaped upper contact member 91 is projected, and a lower contact member 92 is projected below the seedling bonding mechanism 51. The front surfaces of the upper contact member 91 and the lower contact member 92 are flush with each other, and the contact members 91, 92
Are arranged along the rootstock 3 at the stop position of the transfer arm 34a, as shown in FIG. Lower contact member 9
The second material is preferably a soft material such as a sponge.

Each air cylinder and each finger used in the present apparatus are operated by supplying compressed air from an air compressor (not shown). The air cylinders and the fingers are connected to a programmable controller (not shown), and operate in a predetermined order under the control of the air cylinders and the fingers.

The process of manufacturing the grafted seedling 10 by operating the grafted seedling manufacturing apparatus 1 of the present invention to bond the rootstock seedling 3 and the spikelet seedling 4 will be described. Prior to the operation, the parts feeder 54 is vibrated in advance, and the clip 62 is made to stand by in the guide rail 55 in front of the narrowed portion 55a.

First, the worker suspends the rootstock 3 on the slit 23 a of the seedling holder 21 by hand. Next, the cylinder 36a of the rootstock transport mechanism 31 is driven to protrude toward the rootstock seedling 3, and the finger 35a is closed to hold the rootstock seedling 3, and the arm 34a is turned to hold the rootstock seedling 3 in the rootstock seedling. Take out from the tool 21.

The transfer arm 3 from which the rootstock 3 has been removed
4a turns after being driven by the rotation cylinder 31a,
Pause at the cutting position B1. During this rotation, the cylinder 36a is retracted, and the cutting guide 37a is brought into contact with the back surface of the cotyledon of the rootstock 3 that has been retracted.

Then, the motor 44 of the stock cutting mechanism 41 is operated to rotate the cutting arm 43 one turn, and the one leaf portion of the cotyledon developing base 3 a of the stock 3 is lifted by the roller 47 and cut by the cutting blade 46. . The rootstock 3 thus cut is protruded by the cylinder 36a while rotating the arm 34a, and is placed at the grafting position A (see FIG. 3) which is the tip of the seedling bonding mechanism 51. Here, the rootstock 3 is positioned at three points: the finger 35a and the two contact members 91 and 92.

On the other hand, with respect to the scion seedlings 4, the scion seedlings 4 are manually attached to the scion seedling holder 2 by the same process as the stock seedlings 3.
2 is suspended in the slit 71 of the seedling holder 22. At this time, as shown in FIG. 2, the petiole 77 of the scion seedling 4 is fitted into the notch 76 of the scion seedling holder 22.

Next, the scion seedlings 4 are pinched by the fingers 35b of the scion conveying mechanism 32, turned by the transfer arm 34b, temporarily stopped at the cutting position B2, and stopped by the scion cutting mechanism 42. The hypocotyl part 4b is cut. At the time of this temporary stop, as shown in FIG. 10, the root pot portion 81 of the scion seedlings 4 collides with the root pot stop plate 80, the swing of the root pot portion 81 due to the inertia stops, and the hypocotyl portion 78 is positioned at the appropriate cutting position. In addition, the unnecessary root bowl 81 that has been cut is attached to the slope 8.
2 and is stored in a discharge port (not shown). After cutting, the scion seedlings 4 are transported to the grafting position A, which is the tip of the seedling bonding mechanism 51. Therefore, at the grafting position A, the rootstock seedling 3 and the scionling seedling 4 are arranged with both cut surfaces facing each other.

Next, the pushing cylinder 56 of the seedling bonding mechanism 51 protrudes, and the clip 62 is supplied toward the both seedlings 3 and 4 in front while opening the clip 62 at the narrowed portions 55a and 55a. Then, the handle portion 62b of the clip 62 comes off the narrowed portion 55a, and the clip 62 is closed, whereby the cut surfaces of the rootstock seedling 3 and the hogi seedling 4 are bonded.

Thereafter, the finger 3 of the scion transport mechanism 32
5b is opened, and the cylinder 36b is retracted to release the scion seedlings 4 and the arm 34b is rotated to return to the initial state. On the other hand, the stock transport mechanism 31 includes the finger 35a
To release the grafted seedling 10 and rotate to return to the initial state. In the process of the return, the stock carrier arm 3
4a is retracted by the operation of the cylinder 36a.

By repeating the above operations, the grafted seedling production process is performed continuously and labor-saving.

As described above, the grafted seedling manufacturing apparatus 1 of this embodiment
In (2), a slit 71 for suspending the scion seedlings 4 was provided as the scion seedling holder 22, and a notch 76 was formed in the slit 71 into which a petiole 77 of the scion seedling 4 was fitted.
Therefore, when the scion seedlings 4 are suspended on the scion seedling holder 22, the protruding petiole 77 fits into the notch 76,
The inclination of the hogi seedlings 4 can be prevented beforehand. In this embodiment, in order to prevent the cotyledons of the rootstock seedling 3 and the scionling seedling 4 from overlapping in the grafted seedling 10, the supply attitude of both seedlings 3 and 4 is adjusted by moving the cotyledons of the rootstock seedling 3 in the left-right direction. In this embodiment, the notch 76 is provided only in the scion seedling holder 22 in the present embodiment. Therefore, in addition to the mode of this embodiment, the notch 76 may be provided in the rootstock seedling holder 21 in accordance with the supply posture of each of the seedlings 3 and 4.
Or you may provide in both both seedling holding tools 21 and 22.

In this embodiment, the contact members 9 to be brought into contact with the rootstock seedling 3 on the upper and lower sides with respect to the fingers 35a of the rootstock transfer arm 34a moved to the grafting position A, respectively.
1 and 92, the rootstock 3 transferred to the grafting position A becomes the finger 35a and the three contact members 91 and 92.
Since the positioning is performed at the points, it is possible to prevent an adhesion error due to the inclination of the rootstock 3.

Further, in the transport path of the root pot portion 81 of the scion seedling 4 conveyed to the spike transport arm 34b, a root pot stop plate 80
As a result, when the rotation of the scion transfer arm 34b temporarily stops at the cutting position B2, the root
, The swing of the root bowl 81 due to inertia can be stopped immediately. Therefore, after the rotation of the transfer arm 34b is stopped,
There is no need to wait without cutting until the swinging of the root pot portion 81 is completely stopped, and the process can be quickly shifted to the cutting process. In addition, since the hypocotyl 4b is positioned on the root pot stop plate 80,
Cutting can be performed with extremely high precision. Furthermore, since the slope 82 is connected to the lower part of the root mortar stop plate 80, the unnecessary root mortar 81 after cutting can be smoothly discharged.

[0042]

The present invention has been configured as described above.
The following effects are obtained.

In the first invention, at least one of the rootstock seedling holding tool and the scion seedling holding tool is provided with a slit for suspending the vicinity of the base of the cotyledon development on the lower surface of the cotyledon of the seedling, and the slit is provided with the seedling. The petiole formed a notch to be fitted. Therefore, when a seedling is suspended on this seedling holder,
Since the protruding petiole fits into the notch, the inclination of the seedling can be prevented.

In the second invention, the rootstock seedlings conveyed to the grafting position by the rootstock conveying mechanism are provided with contact members to be contacted respectively above and below the gripping means. Therefore, since the rootstock seedling conveyed to the grafting position is positioned at three points of the gripping means and the upper and lower contact members, it is possible to prevent an adhesion error due to the inclination of the seedling beforehand.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a seedling holder in a first embodiment.

FIG. 2 is a front view showing the operation of a seedling holder and a notch.

FIG. 3 is a plan view schematically showing an apparatus for producing a grafted seedling.

FIG. 4 is a perspective view showing a main part of the grafted seedling manufacturing apparatus.

FIG. 5 is a front view showing a main part of the grafted seedling manufacturing apparatus.

FIG. 6 is a partially cutaway plan view showing a seedling bonding mechanism.

FIG. 7 is a partially cutaway side view showing the seedling bonding mechanism and each contact member.

FIG. 8 is a side view showing an extruded plate of the seedling bonding mechanism.

FIG. 9 is a side view showing a scion cutting mechanism and a root pot contact plate.

FIG. 10 is a front view showing a scion cutting mechanism and a root pot contact plate.

[Explanation of symbols]

 Reference Signs List 3 rootstock seedling 4 scion seedling 10 grafted seedling 21 rootstock seedling holder 22 scion seedling holder 23a, 71 slit 76 notch 51 seedling bonding mechanism 62 clip 91 upper contact member 92 lower contact member A grafting position

Claims (2)

(57) [Claims] 1. A rootstock seedling holder for holding rootstock seedlings, a rootstock seedling holder for holding earlings, and a rootstock seedling waiting in the rootstock seedling holder by gripping means. A rootstock transport mechanism that transports the seedlings to the grafting position; a scionling transport mechanism that holds the scionling seedlings waiting in the scioning seedling holder by gripping means and transports them to the grafting position; A cutting mechanism for cutting a predetermined portion of each seedling conveyed to each, and an adhesion mechanism for adhering both cut surfaces of the stock and scion conveyed to the grafting position by the two conveyance mechanisms, At least one of the holding tool and the scion seedling holding tool has a slit for suspending the vicinity of the cotyledon development base on the lower surface of the cotyledon of the seedling, and further has a notch into which the petiole of the seedling fits. A grafting seedling manufacturing device formed. 2. A rootstock seedling holder for holding rootstock seedlings, a rootstock seedling holder for holding earlings, and a rootstock seedling waiting in the rootstock seedling holder by gripping means. A rootstock transport mechanism that transports the seedlings to the grafting position; a scionling transport mechanism that holds the scionling seedlings waiting in the scioning seedling holder by gripping means and transports them to the grafting position; A cutting mechanism for cutting a predetermined portion of each seedling conveyed to each, and an adhesive mechanism for adhering both cut surfaces of the rootstock and scions conveyed to the grafting position by the two conveying mechanisms, An apparatus for producing grafted seedlings, comprising contact members to be brought into contact with upper and lower sides of the gripping means, respectively, on the rootstock seedlings conveyed to the grafting position by a mechanism.