JPH0856485A - Device for grafting - Google Patents

Abstract

PURPOSE: To obtain the grafting device capable of grafting a stock seedling to a scion seedling without giving a damage affecting the growth of a grafted seedling, and capable of using a grafting tool provided with arm parts and attaching members which are used for fixing the grafted seedling to a support on the transplantation of the grafted seedling. CONSTITUTION: The grafting device is provided with a grafting tool-supporting mechanism for supplying a grafting tool to a scion seedling-inserting position, namely a position P7 , so that a scion seedling E can be inserted into an insertion hole from the upper side, with gripping pieces downward projected from a pair of scion seedling-gripping members 35, confronted to each other, and capable of gripping arm parts in a state that a pair of scion seedling-gripping members 35 grip the scion seedling E, and with a grafting tool position- determining mechanism having a pair of grafting tool position-determining members 76 for determining the position of a grafting part placed at a grafting position, namely a position P4 .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention supplies rootstock seedlings and scion seedlings as grafted seedlings, cuts each seedling at each cutting position, and grafts the rootstock seedling and the scion seedling at a joining position. TECHNICAL FIELD The present invention relates to a grafting device that obtains a graft by joining with a tool.

[0002]

2. Description of the Related Art In recent years, fruit vegetables cultivated in gardening facilities such as greenhouses have been grafted in order to avoid the harmful effects of continuous cropping and to increase the yield. Most of this grafting work is done manually. Performing grafting manually in this manner requires a great deal of labor and time, so by supplying rootstock seedlings and scion seedlings, various grafting devices that can easily obtain grafting have been proposed. There is.

The grafting device described above uses a heat-shrinkable tube as a grafting tool, cuts each seedling at each cutting position in the process of gripping and transferring the supplied rootstock seedlings or scion seedlings. After inserting the cutting part side of the seedling into the heat-shrinkable tube so that both cut surfaces are in contact with each other, hot air is blown onto the heat-shrinkable tube to shrink and join the two cut surfaces, thereby grafting Is what you get. Alternatively, after the cut surfaces of both seedlings are brought into contact with each other, both seedlings are sandwiched by a clip and the cut surfaces are joined to obtain a graft.

[0004]

In the conventional grafting device, when a heat shrinkable tube is used as the grafting tool, it is necessary to provide a hot air supply mechanism for supplying hot air. When hot air is blown onto the heat-shrinkable tube to shrink the heat-shrinkable tube, hot air is also blown to the rootstock seedlings and the scion seedlings, which damages a part of the graft and adversely affects the growth of the graft. May be affected. Further, when grafting a graft obtained by the grafting device, it is necessary to fix the graft to the support using a support member which is a separate member.

When a clip is used as the grafting tool,
Since the clips have to be expanded and then contracted to join the two seedlings, the mechanism for extruding or expanding the clips and then contracting them to grasp both seedlings becomes complicated. Then, after both seedlings have lived, it is necessary to remove the clip.

The present invention has been made to solve the above-mentioned inconvenience, and it is possible to join rootstock seedlings and scion seedlings without damaging the growth and transplanting grafts. (EN) A grafting device capable of using a grafting tool having an arm portion and a mounting portion for fixing the graft to the support when the grafting is performed.

[0007]

The present invention transfers a rootstock seedling holding mechanism, which holds rootstock seedlings by a pair of rootstock seedling holding members, to a rootstock seedling cutting position by a rootstock seedling transfer mechanism. After cutting the tree seedlings, they are transferred to the joining position, and the pair of scion seedlings gripping mechanism that grips the scion seedlings with a pair of scion seedling gripping members is transferred to the scion seedling cutting position by the scion seedling transfer mechanism. In a grafting device that cuts the scion seedlings, transfers them to the joining position, and joins the rootstock seedlings and the scion seedlings at the joining position. Cutting a scion seedling so that the scion seedling can be inserted into the insertion hole of the grafting tool from the upper side with a grafting part consisting of a joint part having a hole, a mounting part to a column, and an arm connecting the mounting part and the bonding part. The grafting tool feeding mechanism that feeds to the scion seedling insertion position between the position and the joining position, and projects downward from the pair of scion seedling gripping members, respectively. On the other hand, the pair of scion seedling gripping members can grip the arm part while gripping the scion seedling, and the pair of scion seedling gripping members releases the grip of the scion seedling to grip the arm part. The gripping piece for releasing the grip, the lower side of the joint located at the joint position, or the grip can be released, and the positioning recess for positioning the joint while gripping the joint and the guide hole communicating with the insertion hole are provided. A grafting tool positioning mechanism having a pair of grafting tool positioning members formed at the center of the recess is provided, and when the rootstock seedling and the grafted seedling are joined at the joining position, both seedlings are moved relatively in the axial direction of the insertion hole. It is what makes them join. Then, the pair of gripping pieces expands at the lower end, the insertion hole expands at both sides toward the end, and the guide hole expands at the side into which the rootstock seedling is inserted toward the end. Is desirable.

[0008]

In the grafting device according to the present invention, when the scion seedlings gripped by the pair of scion seedling gripping members are inserted above the insertion hole of the grafting tool at the scion seedling insertion position, the pair of gripping pieces causes the arm of the grafting tool to move. Hold the part. Then, by inserting the rootstock seedlings into the underside of the insertion hole of the grafting tool at the joining position and joining the cut surfaces of both seedlings, a graft with high viability can be obtained.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a plan view of a grafting apparatus which is an embodiment of the present invention, FIG. 2 is a side view taken along the line AA of FIG. 1, FIG. 3 is a partially enlarged view of a portion of FIG. 2, and FIG. 1 is a cross-sectional view taken along the line BB of FIG. 1, FIG.
(A), (b) is a top view which shows a scion seedling holding mechanism, and the side view by CC line of FIG. 6 (a), FIG. 7 (a), (b)
Is a partial plan view showing the main part of the turntable that constitutes the graft graft supply mechanism and a sectional view taken along the line D-D in FIG. 7A, and FIGS. 8A and 8B are plan views of the graft graft positioning mechanism. FIG. 9 is a sectional view taken along line EE of FIG. Note that, in FIG. 1, the illustration of the grafting tool positioning mechanism is omitted.

In these drawings, reference numeral 1 denotes a base, on which a mounting plate 2 is mounted at a predetermined distance from the upper surface, support poles 3 and 21 fixed to the upper surface penetrate the mounting plate 2, and a motor 81 is mounted. Has been. Reference numeral 4 denotes a mounting plate fixed to the upper end of the support pole 3, and 5 denotes a rotary cylinder rotatably mounted on the peripheral surface of the support pole 3. The lower part of the rotary cylinder 5 penetrates the mounting plate 2. .

Reference numeral 6 denotes a gear fixed to the outer periphery of the lower end of the rotary cylinder 5, 7 denotes an annular support member fixed to the peripheral surface of the rotary cylinder 5,
Reference numeral 8 denotes a guide member, and the guide member 8 is axially fixed to the peripheral surface of the rotary cylinder 5 above the support member 7. Reference numeral 9 denotes a drive rod which is attached to the support member 7 so as to be vertically movable, and is engaged with the upper surface of the support member 7 by a flange provided on the upper end side and protrudes to the lower side of the support member 7. Reference numeral 10 denotes a mounting base, which is pushed up by a drive rod 9 having an upper end portion screwed thereto and hangs down by its own weight, and is vertically guided by a guide member 8.

Reference numeral 11 denotes a chuck cylinder fixed to the mount 10. The chuck cylinder 11 is set in a state in which the pair of rootstock seedling holding members 13 is opened or the rootstock seedling S is held in a state of releasing the holding of the rootstock seedling S. A rod 12 that closes the pair of rootstock seedling holding members 13 projects below the mounting base 10. The rootstock seedlings S to be gripped are held in the gripping portions of the pair of rootstock seedling gripping members 13.
An elastic body 14 such as a sponge is attached so as not to hurt the user. Reference numeral 15 denotes a rootstock seedling positioning member attached to the mounting plate 2, which positions the rootstock seedling S held by the pair of rootstock seedling holding members 13.

A rootstock seedling transfer mechanism is constituted by the rotary cylinder 5 and the mounting base 10, and power is supplied from a motor 81. The chuck cylinder 11 to the elastic body 14 constitute a rootstock seedling holding mechanism, and power is supplied from an air cylinder described later. The guide member 8 to the elastic body 1
Reference numerals 4 are attached to the rotary cylinder 5 at positions where the peripheral surface of the rotary cylinder 5 is divided into four parts. The position P ₁ corresponds to the rootstock seedling gripping position and the graft removal position, the position P ₂ corresponds to the rootstock seedling cutting position, and the position P ₄ corresponds to the joining position.

Reference numeral 16 denotes a rootstock seedling mounting table, which is fixed to the mounting plate 2 in correspondence with the position P ₁ . Reference numeral 17 denotes a rootstock seedling pressing mechanism fixed to the rootstock seedling mounting table 16, and the rootstock seedling S is fixed to the rootstock seedling positioning member 1 by a rotating pressing arm 18.
It is sandwiched between 5 and. Reference numeral 19 denotes a rootstock seedling cutting mechanism, which is fixed to the base 1 in correspondence with the position P ₂ and is used as a rootstock seedling S.
Is cut so that the cut surface is inclined at a predetermined angle.

Reference numeral 22 denotes a mounting plate fixed to the upper end of the support pole 21, 23 denotes a rotary cylinder rotatably mounted on the peripheral surface of the support pole 21, and the lower part of the rotary cylinder 23 penetrates the mounting plate 2. are doing. Reference numeral 24 denotes a gear fixed to the outer periphery of the lower end of the rotary cylinder 23, which meshes with the gear 6. 25
Is an annular support member fixed to the peripheral surface of the rotary cylinder 23, 26
Indicates a guide member, and the guide member 26 is axially fixed to the peripheral surface of the rotary cylinder 23 above the support member 25.

Reference numeral 27 denotes a drive rod attached to the support member 25 so as to be vertically movable. A flange provided on the lower end side engages with the lower surface of the support member 25, and a flange 28 is also provided on the lower end. The end portion projecting to the upper side of is screwed to a mounting base 29 described later. Reference numeral 29 denotes a mount, which is pulled down by a drive rod 27 having an upper end portion screwed therein and is raised by the urging force of the coil spring 30,
The vertical movement is guided by the guide member 26.

Reference numeral 31 denotes a chuck cylinder fixed to the mount 29. The pair of scion seedling gripping members 35 is opened to release the scion seedling E from the grip, and the scissor seedling E is gripped to hold the scion seedling E. Rod 3 that closes the spikelet seedling holding member 35 of
2 projects below the mount 29. A groove 33 is provided in the rod 32, and a latch plate 34 is rotatably attached to the mounting base 29. The latch plate 34 is biased by a spring (not shown) so as to engage with the groove 33. There is.

Further, an elastic body 36 such as a sponge and a gripping piece for gripping an arm portion 97 of a grafting tool 91 described later so as not to damage the scion seedling E gripped by the pair of scion seedling gripping members 35. 37 is attached, and the lower end of the gripping piece 37 is widened. Reference numeral 38 denotes a scion seedling positioning member fixed to the mounting plate 2 for positioning the scion seedling E gripped by the pair of scion seedling gripping members 35.

The above-mentioned rotary cylinder 23 to mounting base 29 constitute a scion seedling transfer mechanism, and power is supplied from a motor 81. The chuck cylinder 31 to the elastic body 36 constitute a scion seedling holding mechanism, and power is supplied from an air cylinder 58 described later. The guide member 26-
The grip pieces 37 are attached to the rotary cylinder 23 at respective positions where the peripheral surface of the rotary cylinder 23 is divided into four. The position P ₅ corresponds to the scion seedling gripping position, the position P ₆ corresponds to the scion seedling cutting position, and the position P ₇ corresponds to the scion seedling insertion position.

Reference numeral 39 denotes a scion seedling mounting table, which is fixed to the mounting plate 2 in correspondence with the position P ₅ . Reference numeral 40 denotes a scion seedling pressing mechanism fixed to the scion seedling placing table 39, and the scoop seedling E is moved to the scion seedling positioning member 3 by a rotating pressing arm 41.
It is sandwiched between 6 and. Reference numeral 42 denotes a cutting seedling cutting mechanism, which is fixed to the base 1 in correspondence with the position P ₆ and is a cutting seedling E.
Is cut so that the cut surface is inclined at a predetermined angle. Reference numeral 43 denotes a latch release pin attached to the spike mounting table 39, which is moved back and forth to rotate the latch plate 34 against the biasing force of the spring, thereby engaging with the groove 33 of the latch plate 34. Is to be released.

Reference numeral 51 denotes a sleeve, which is attached to a position where the concentric circle of the gear 24 is divided into four. Reference numeral 52 denotes an air cylinder fixed to the base 1, and the rod 53 is fitted into the sleeve 51 to position the stop position of the gear 24. The rootstock seedling transfer mechanism, the scion seedling transfer mechanism, and a grafting tool supply described later. A positioning mechanism for positioning the mechanism at a predetermined position is configured.

Reference numeral 54 denotes an air cylinder fixed to the mounting plate 2, which pushes up the drive rod 9 with a rod 55. The air cylinder 54 is arranged corresponding to the position P ₄ and constitutes a rootstock seedling up-and-down moving mechanism for vertically moving the rootstock seedling holding mechanism. Reference numeral 56 denotes an air cylinder fixed to the mounting plate 2, and a holder 5 that engages with a flange 28 provided at the lower end of the drive rod 27 that rotates at the tip of the rod.
7 is attached. The air cylinder 56 is arranged corresponding to the positions P ₄ and P ₇ , and the coil spring 30, the air cylinder 56 and the holder 57 constitute a scion seedling vertical movement mechanism for vertically moving the scion seedling holding mechanism. .

Reference numeral 58 denotes an air cylinder fixed to the mounting plate 2, which pushes up the rod 32 with a rod 59. The air cylinder 58 is arranged corresponding to the position P ₄ . Then, the same structure as the air cylinder 58 pushes up the lower end of the rod 12,
It is arranged corresponding to the position P ₁ .

Reference numeral 61 denotes a support cylinder, and 62 denotes a rotary shaft rotatably attached to the support cylinder 61. The lower end of the rotary shaft 62 protruding downward from the mounting plate 2 is a gear 63 meshing with the gear 24. Is fixed, and the turntable 64 is fixed to the upper end protruding upward from the support cylinder 61. Then, in the turntable 64, a concave portion 65 for positioning the joint portion 92 of the grafting tool 91, a through hole 66 located at the center of the concave portion 65, and a convex portion that engages with a hole 96 provided in the mounting portion 95. 67 and a concave portion 68 located between the concave portion 65 and the convex portion 67 are provided, and the concave portions 65, 68, the through hole 66 and the convex portion 67 are provided on the diameter. In addition, when the turntable 64 is rotated, the insertion hole 9 of the joint portion 92 is rotated.
3 is positioned at the positions P ₄ and P ₇ .

Reference numeral 71 denotes a mounting member fixed to the upper surface of the mounting plate 4, 72 denotes a motor fixed to the mounting member 71, and 73 denotes a gear mounted on the rotary shaft of the motor 72 penetrating the mounting member 71. A gear 74 is attached to the lower surface of the attachment member 71 and meshes with the gear 73. Reference numeral 75 denotes a gear attached to the lower surface of the attachment member 71.
It meshes with 4.

Reference numeral 76 denotes a pair of grafting tool positioning members attached to the respective gears 74 and 75, and a positioning recess 77 for gripping and positioning the lower portion of the joint 92 forming the grafting tool 91 in a closed state. A guide hole 78 having a conical surface that expands downward is formed to guide the rootstock seedling S to the center of the positioning recess 77. A grafting tool positioning mechanism is configured by the grafting tool positioning member 76 from the motor 72, and is arranged corresponding to the position P ₄ .

Reference numeral 81 denotes a motor fixed to the base 1,
The transmission mechanism 82 transmits the rotational force to the gear 83 that meshes with the gear 24. The gear 6 and the gear 24 have the same size and the same number of teeth, and the gear 63 is the gear 24.
The number of teeth is half that of the gear 24.

9 (a) and 9 (b) are a perspective view of the grafting tool and a vertical sectional view of FIG. 9 (a). In FIG. 9, reference numeral 91 denotes a grafting tool formed of a flexible synthetic resin, which is composed of a joint portion 92, a mounting portion 95, and an arm portion 97 connecting the mounting portion 95 and the joint portion 92. . The joint portion 92 is provided with an insertion hole 93 whose upper portion expands upward and whose lower portion expands downward, and a crack 94 which reaches the insertion hole 93 and extends from the upper end to the lower end. Also, the mounting portion 95
Is provided with a hole 96 through which the column passes.

10 to 13 are operation explanatory views.

Next, the graft will be described. It should be noted that the rod 53 of the air cylinder 52 is fitted to the sleeve 51 provided on the gear 24, each gripping mechanism is located at the positions P _{1 to} P ₇ , and one concave portion 65 of the turntable 64 is located at the position P.
It shall be in the state shown in FIG. 1 which corresponds to _7. In the following description, one rootstock seedling S and one rootstock seedling E are grafted by the rootstock seedling holding mechanism located at the position P ₁ and the rootstock seedling holding mechanism located at the position P _5. The operation will be described.

Then, the pair of rootstock seedling holding members 13 at the position corresponding to the position P ₁ are closed as shown by the solid line in FIG.
A pair of scion seedlings gripping member 35 corresponding to the position P _5, the latch plate 34 into the groove 33 of the rod 32 is fitted to open as indicated by the two-dot chain line in FIG. 6 (a), the position P ₄ The pair of graft-positioning members 76 at the corresponding positions are open as shown by the chain double-dashed line in FIG.

When the operation starts from the above state, first,
Since the air cylinder (58) corresponding to the position P ₁ operates to push up the rod 12, the pair of rootstock seedling holding members 1
3 is opened as shown by the chain double-dashed line in FIG. After the seedling seedling S is brought into contact with the seedling seedling positioning member 15 in a state where both seedling holding members 13 and 35 are open as described above, the pressing arm 18
Is rotated to sandwich the rootstock seedling S between the rootstock seedling positioning member 13 and the earstock seedling E is brought into contact with the earstock seedling positioning member 38, and then the pressing arm 41 is rotated to rotate the rootstock seedling S. E is sandwiched between the rootstock seedling positioning member 38.

Then, as the air cylinder (58) becomes non-operating and the latch release pin 43 moves back and forth to release the engagement with the groove 33 of the latch plate 34, the rods 12, 32 hang down. The pair of rootstock seedling holding members 13 are shown in FIG.
As shown by the solid line, the rootstock seedlings S are closed at a predetermined position and a pair of spikelet seedling gripping members 35 are shown in FIG. 6 (a).
As shown by the solid line, the scion seedling E is grasped at a predetermined position by closing. At this time, attach the grafting device 91 to the turntable 64,
Place as shown in FIG.

When the gripping of both seedlings S and E is completed in this way, the air cylinder 52 operates and the rod 53 comes out of the sleeve 51, and the motor 81 operates to operate the gear 24.
At 90 degrees counterclockwise, gear 6 rotates 90 degrees clockwise and gear 63 rotates 180 degrees clockwise.
Rotate once. Then, when the rotation of the gears 6, 24, 63 is completed, the air cylinder 52 becomes inoperative and the rod 53 fits into the sleeve 51.
Since the 63 is positioned, the rootstock seedling holding member 13
Is positioned at position P ₂ , the scion seedling gripping member 35 is positioned at position P ₆ , and the recess 65 is positioned at position P ₇ .

When each part is positioned in this way, the seedling cutting mechanisms 19 and 42 operate and the seedlings S and E are cut. At this time, the grafting tool 91 is placed on the turntable 64 as shown in FIG. 7B. Next, when the cutting of each seedling S, E is completed, the air cylinder 52 operates and the rod 53
Comes out of the sleeve 51, the motor 81 operates, and the gear 2
4 is rotated further 90 degrees counterclockwise, so gear 6
Rotates an additional 90 degrees clockwise and gear 63 rotates an additional 180 degrees clockwise.

When the rotation of the gears 6, 24, 63 is completed, the air cylinder 52 becomes inoperative and the rod 53 fits into the sleeve 51.
Since the 63 is positioned, the rootstock seedling holding member 13
Is positioned at position P ₃ , the scion seedling gripping member 35 is positioned at position P ₇ , and the recess 65 is also positioned at position P ₇ .

When each part is thus positioned, the air cylinder 56 operates and the holder 57 hangs the drive rod 27, so that the mounting base 29 hangs down as shown by the two-dot chain line in FIG. , A pair of scion seedling gripping members 35
And the pair of gripping pieces 37 are recessed from both sides of the arm portion 97 while the drooping tree seedling E is inserted above the insertion hole 93.
Go in to grip the arm 97. Then, when the drooping is completed, the air cylinder 56 is put into a non-operating state.
As shown in FIG. 1, when the mounting base 29 is raised by the urging force of the coil spring 30, the pair of scion seedling gripping members 35 is also raised and the graft connector 91 is taken out from the turntable 64.

Next, when the removal of the grafting tool 91 is completed, the air cylinder 52 operates, the rod 53 comes out of the sleeve 51, and the motor 81 operates to rotate the gear 24 counterclockwise by 90 degrees. Gear 6 rotates 90 degrees further clockwise and gear 63 rotates 180 degrees further clockwise. When the rotation of the gears 6, 24, 63 is completed, the air cylinder 52 becomes inoperative and the rod 53 fits into the sleeve 51.
By positioning 24 and 63, the seedling holding members 13 and 35 are positioned at the position P ₄ .

When the respective parts are positioned in this way, the motor 72 operates to move the pair of grafting tool positioning members 76 to the position shown in FIG.
Since it is closed as shown by the solid line, the lower side of the joint portion 92 at the position P ₄ is positioned by the positioning recess 77 as shown in FIG. Then, the air cylinders 54 and 56 operate to raise the mount 10, and the mount 29 is slightly hung down and moved slightly longer than the stroke at which the cut surfaces of both seedlings S and E contact each other. As shown in, the rootstock seedling S is guided by the guide hole 78 and inserted into the lower side of the insertion hole 93, and the cut surfaces of both seedlings S and E are pressed and joined.

When the joining of the two seedlings S and E is completed in this way, the air cylinder 58 operates to push up the rod 32, so that the pair of spikelet seedling holding members 35 are shown by a chain double-dashed line in FIG. 6 (a). And the grasping of the scion seedling E is released. At this time, the latch plate 34 is fitted into the groove 33 of the rod 32, and after the rod 32 is not suspended, the air cylinder 58 becomes inoperative. Further, the motor 72 operates to open the pair of grafting tool positioning members 76 as shown by the chain double-dashed line in FIG.
6 releases the positioning of the joint 92.

As described above, when the pair of scion seedling gripping members 35 release the grip of the scion seedling E and the pair of grafting tool positioning members 76 cancel the positioning of the joint portion 92, the air cylinder 54 is in the inoperative state. Therefore, the mounting base 10 hangs down to the position shown in FIG. 12, and the air cylinder 56 is deactivated, so that the mounting base 29 rises. Next, when the hanging of the mounting base 10 is completed, the air cylinder 52 operates, the rod 53 comes out of the sleeve 51, and the motor 81 operates to rotate the gear 24 further counterclockwise by 90 degrees. It rotates an additional 90 degrees clockwise, and the gear 63 rotates an additional 180 degrees clockwise.

When the rotation of the gears 6, 24, 63 is completed, the air cylinder 52 is deactivated and the rod 53 is fitted into the sleeve 51.
Since the 63 is positioned, the rootstock seedling holding member 13
Is positioned at the position P ₁ and the scion seedling gripping member 35 is positioned at the position P ₅ to be in the initial state. Therefore,
Since the air cylinder (58) operates to push up the rod 12, the pair of rootstock seedling holding members 13 are opened, and the graft can be taken out. After that, the grafting can be sequentially obtained by repeating the same operation.

As described above, according to the embodiment of the present invention, the rootstock seedling positioning member 15 and the rootstock seedling pressing mechanism 1 are used.
In a state where the rootstock seedlings S are positioned and the rootstock seedlings S are positioned, the pair of rootstock seedling gripping members 13 are gripped, and the scion seedling positioning member 38 and the scion seedling pressing mechanism 40 are positioned to position the rootstock seedling E. Since the pair of scion seedling gripping members 35 grip the seedlings S and E, the seedlings S and E can be accurately positioned and joined.
Moreover, since the rootstock seedling S and the scion seedling E are inserted into the insertion holes 93 of the grafting tool 91, and the cut surfaces of both seedlings S and E are pressed and joined, the cut surfaces of both seedlings S and E are It is possible to surely join and eliminate joining mistakes, and join the rootstock seedling S and the scion seedling E without damaging the growth.

Since the pair of scion seedling gripping members 35 are provided with the gripping pieces 37 for gripping the arm portions 97 of the grafting tool 91 supplied to the scion seedling insertion position P ₇ by the grafting tool supply mechanism, the scion seedlings holding member 35 is provided. Grafting tool 9 with E inserted into insertion hole 93 of grafting tool 91
Since 1 can be gripped, it is possible to use the grafting tool 91 provided with the mounting portion 95 for fixing the grafting to the column. Therefore, when transplanting the graft, it can be fixed to the column with the graft tool 91 without using a separate member. When the graft grows and the stem becomes thicker, the crack 94 is used to remove the graft from the joint 92. Even if left untouched, if the stem becomes thicker, the graft 94 will naturally come off due to the action of the crack 94.

Further, since the arm portion 97 of the grafting tool 91 is grasped by the pair of grasping pieces 37, the insertion hole 93 is accurately positioned at the position P ₄ with the scion seedling E being inserted into the insertion hole 93. Since the rootstock seedling S and the scion seedling E can be joined and the cut surfaces of both seedlings S and E are pressed, the stems of both seedlings S and E are thinner than the insertion hole 93 of the grafting tool 91. Can also be grafted. Then, since the lower ends of the pair of grip pieces 37 are expanded, the arm portion 97 of the graft tool 91 can be reliably gripped.

Further, since both ends of the insertion hole 93 are expanded outward, the seedlings S and E can be reliably guided to the insertion hole 93. And the joint part 9 of the grafting tool 91
Since the rootstock seedling S is inserted into the insertion hole 93 by positioning the 2 by the grafting tool positioning member 76, the rootstock seedling S can be reliably inserted into the insertion hole 93. Further, the guide hole 78
Was expanded to the side into which the rootstock seedling S was inserted.
Can be reliably guided to the insertion hole 93.

In the above-described embodiment, the grafting tool 91 is supplied to the position P ₇ by the turntable 64. However, a portion for positioning the grafting tool 91 is provided at the tip of the rod of the air cylinder, and the position P is set. _The grafting tool 91 may be supplied to the ₇ . In addition, although an example has been described in which the spikelet seedling E is hung at the position P ₄ to join both seedlings S and E, both seedlings S and
Since it suffices that E can be relatively moved and joined, only the rootstock seedling S may be raised and joined without suspending the spikelet seedling E. And, needless to say, it can be applied to grafts other than fruits and vegetables.

[0048]

As described above, according to the present invention, the rootstock seedlings and the scion seedlings are inserted into the insertion holes of the grafting tool, and the cut surfaces of both seedlings are pressed together to join them. The cut surfaces of can be reliably joined to eliminate joining errors, and can be joined to the rootstock seedling and the scion seedling without damaging the growth. Further, since the gripping piece for gripping the arm portion of the grafting tool supplied by the grafting tool feeding mechanism to the scion seedling insertion position was provided on the pair of scion seedling gripping members, the scion seedling was inserted into the insertion hole of the grafting tool. Since the grafting tool can be held in this state,
It is possible to use a grafting tool provided with a mounting portion for fixing the grafting to the column. Therefore, when grafting a graft, it can be fixed to the column with a graft without using a separate member.

Since the arm portion of the grafting tool is gripped by the pair of gripping pieces, the insertion hole is accurately positioned at the joining position in a state where the scion seedling is inserted into the insertion hole of the grafting tool to form the rootstock seedling. Since it can be joined to the scion seedling and the cut surfaces of both seedlings are pressed against each other, it is possible to graft even if the stems of both seedlings are thinner than the insertion hole of the grafting tool. Furthermore, since the joint part of the grafting tool is positioned by the grafting tool positioning member and the rootstock seedling is inserted into the insertion hole, the rootstock seedling can be reliably inserted into the insertion hole. Moreover, since the lower ends of the pair of gripping pieces are expanded, it is possible to reliably grip the arm part of the grafting tool.

Since both ends of the insertion hole are expanded outward, each seedling can be reliably guided to the insertion hole. Furthermore, since the guide hole is expanded to the side where the rootstock seedling is inserted, the rootstock seedling can be reliably guided to the insertion hole.

[Brief description of drawings]

FIG. 1 is a plan view of a grafting device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a partially enlarged view in which a part of FIG. 2 is enlarged.

FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 5 is a plan view showing a rootstock seedling gripping mechanism.

FIG. 6A is a plan view showing a scion seedling gripping mechanism, and FIG.
FIG. 7 is a side view taken along the line CC of FIG.

FIG. 7A is a partial plan view showing a main part of a turntable that constitutes a graft graft supply mechanism, and FIG. 7B is a view of D of FIG. 7A.
It is a sectional view taken along the line D.

FIG. 8A is a plan view of a grafting tool positioning mechanism, and FIG.
FIG. 9 is a sectional view taken along line EE of FIG.

9A is a perspective view of a grafting tool, and FIG. 9B is FIG. 9A.
FIG.

FIG. 10 is an operation explanatory diagram.

FIG. 11 is an operation explanatory diagram.

FIG. 12 is an operation explanatory diagram.

FIG. 13 is an operation explanatory diagram.

[Explanation of symbols]

 5,23 Rotating cylinder 6,24,63 Gear 8,26 Guide member 9,27 Drive rod 10,29 Mounting base 11,31 Chuck cylinder 13 Rootstock seedling gripping member 19 Rootstock seedling cutting mechanism 30 Coil spring 35 Rootstock seedling Grasping member 42 Rootstock seedling cutting mechanism 54, 56, 58 Air cylinder 64 Turntable 65, 68 Recessed portion 66 Through hole 67 Convex portion 72, 81 Motor 73, 74, 75 Gear 76 Grafting member positioning member 77 Positioning recessed portion 78 Guide hole 91 Grafting equipment 92 Joining portion 93 Inserting hole 95 Mounting portion 97 Arm S Rootstock seedling E Hotoki seedling

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikiharu Kobayashi 94 Chitose-cho, Ashikaga-shi, Tochigi Kobayashi Machinery Co., Ltd. (72) Inventor Seiichi Kubota 2-6-1 Egawa-cho, Ashikaga-shi, Tochigi Kubota Shokuhin Co. In-company (72) Inventor Tsuneo Kawashima 2177-3 Fukui-cho, Ashikaga-shi, Tochigi Seiwa Construction Co., Ltd.

Claims (4)

[Claims] 1. A rootstock seedling holding mechanism that holds rootstock seedlings with a pair of rootstock seedling holding members is transferred to a rootstock seedling cutting position by a rootstock seedling transfer mechanism to cut the rootstock seedlings, Transferred to the joining position, the scion seedling gripping mechanism that gripped the scion seedlings with a pair of scion seedling gripping members was transferred to the scion seedling cutting position by the scion seedling transfer mechanism to cut the scion seedlings. After that, in a grafting device that transfers to the joining position and joins the rootstock seedling and the scion seedling at the joining position, inserts the spear seedling and the rootstock seedling from above and below for joining. The scion seedling so that the scion seedling can be inserted into the insertion hole from the upper side with a graft part comprising a joint part having a hole, a mounting part to a pillar, and an arm part connecting the mounting part and the joint part. From a pair of scion seedling gripping members, a grafting tool supply mechanism that supplies the scion seedling insertion position between the cutting position and the joining position. Each of which protrudes downward and faces each other, and the pair of scion seedling gripping members can grip the arm portion in a state of gripping the scion seedling, and the pair of scion seedling gripping members are the spikes. A gripping piece that releases the grip of the arm portion in a state where the grip of the tree seedling is released, and the bottom side of the joint portion located at the joint position can be grasped or the grip can be released, and the joint portion A positioning recess for positioning in a gripped state, and a grafting tool positioning mechanism having a pair of grafting tool positioning members that form a guide hole communicating with the insertion hole at the center of the recess, the rootstock seedling and the grafted seedling When joining at the joining position, the both seedlings are relatively moved in the axial direction of the insertion hole to join the seedlings. 2. The grafting device according to claim 1, wherein the pair of gripping pieces have a widened lower end portion. 3. The grafting device according to claim 1 or 2, wherein both sides of the insertion hole are widened toward the ends. 4. The grafting device according to any one of claims 1 to 3, wherein the guide hole is widened toward the end on the side into which the rootstock seedling is inserted. A characteristic grafting device.