JP3200970B2 - Grafting robot - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a robot for producing grafted seedlings for automatically supplying and grafting rootstock seedlings and spikelet seedlings, and more particularly to a seedling cutting section thereof.

[0002]

2. Description of the Related Art Conventional robots for producing grafted seedlings are known, for example, as disclosed in Japanese Utility Model Laid-Open No. 3-27933 and Japanese Utility Model Laid-Open No. 4-49935. The grafting robot described in the above-mentioned publication is characterized in that rootstock seedlings arranged in advance in a plurality of seedling support holes radially provided on the outer periphery of the disk stand and scion seedlings arranged on a disk stand having the same structure are each 3
While rotating 60 degrees, adjacent to the disk base, 3
The seedlings are transferred one by one to fixed hands protruding from the rootstock processing disk part and the scion processing disk part that rotate by 60 degrees, and the cutting device is rotated at a position where each seedling processing disk part rotates by a predetermined angle. This is a device that cuts rootstock seedlings and scion seedlings respectively, rotates these seedlings further by a predetermined angle, rotates and transports them to a position where the rootstock and scion can be joined, and joins the stock and scion with clips. .

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to further improve the above-mentioned conventional grafting robot and to provide a grafting robot which can be easily used. More specifically, an object of the present invention is to make the cutting mechanism of the seedling of the grafting robot excellent in operability.

[0004]

The above object of the present invention is achieved by the following constitution. That is, after cutting the rootstock seedling and the scion seedling by the respective cutting devices, in the grafting robot to be joined, each cutting device of the stockstock seedling or the scion seedling can adjust the expansion and contraction and can rotate the cutter arm. A grafting robot comprising a cutting blade supported at a tip. Further, after cutting the rootstock seedlings and the scion seedlings with the respective cutting devices, in the grafting robot to join, each cutting device of the stockstock seedlings or the scion seedlings is supported by a rotating shaft whose installation position is adjustable, and A grafting robot, comprising: a cutter arm that is adjustable in expansion and contraction and is capable of rotating movement; and a cutting blade supported at the tip of the cutter arm.

[0005]

According to the first aspect of the invention, the cutting position of the hypocotyl or the cutting angle of the hypocotyl can be adjusted. According to the second aspect of the present invention, the cutting height of the hypocotyl, the cutting angle of the hypocotyl and the cutting depth of the hypocotyl can be adjusted with high accuracy.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. A top view of the grafting robot of the present embodiment is shown in FIG. 1 (a view with a top plate removed), an enlarged view of the portion (grafted portion) is shown in FIG. 2, a front view is shown in FIG. 3 (a view with a front cover removed), Figure 4 shows the side view
(The side view of the stock with the side cover removed) is shown in each figure. The grafting robot comprises a clip feeder 1 and a graft 2, and the graft 2 comprises a stock 3, a scion 5, and a joint 6 therebetween.

The clip bowl 7 of the clip feeder 1
A clip guide rail 9 is provided from the outer periphery, and the graft 2 is made to be adjacent to the distal end thereof. The robot manipulators 10 and 11 and the seedling supply plates 13 and 14 for grasping and transporting the stock and the scion, respectively, are suspended on the top plate 15 (FIG. 3) of the graft 2. Since all the movements are assembled on one top plate 15, dimensional accuracy is improved. In addition, the top plate 15 plays a role of a cover and a strength member of the grafting robot, and prevents scattering of cutting residues from the stock and scion. FIG. 2 is an enlarged view of the graft portion 2 shown in FIG. The stock 3 is composed of a stock seedling supply device 17, a stock seedling transfer device 18 and a stock cutting device 19, and the scion part 5 is likewise a scion seedling supply device 21, a scion conveyance device 22. And a scion cutting device 23.

The rootstock seedling supplied manually to the rootstock seedling supply device 17 is transported to the position of the rootstock cutting device 19 (cutting position) by the rootstock transporting device 18 rotating in the direction of the arrow (a) in FIG. Then, the cutting device 19 is rotated (see FIG. 4), and the cutting blade leaves one cotyledon of the rootstock seedling, and the other cotyledons are cut off. The stock cutting device 19 is a rotary cutter having a cutting blade attached to the tip, and rotates in the direction of arrow (c) in FIG. The rootstock that has been cut and leaves one cotyledon is transported in the direction of the arrow (b), and is joined to the scion by the joining device 25 at the joining part 2.

Similarly, the scion supply device 21 is also manually operated.
Is fed by the scion conveying device 22 in the direction of arrow (d), and the scion cutting device 23 rotating in the direction of arrow (f) at the cutting position leaves the tissue above the hypocotyl portion. The hypocotyl and the root are partially cut off. And the scion with cotyledons is transported in the direction of the arrow (e),
The stock and the joint 2 are joined by the clip supplied from the clip feeder 1, the grafting operation is completed, and the tree is dropped and collected below the graft 2.

Next, the cutting apparatus will be described with reference to FIG. The cutting device is provided in each of the stock 3 and the scion 5, but has a mechanism common to both. FIG. 5 shows a cutting device on the stock 3 side. FIG. 5A is a top view (a direction viewed from the top of the grafting robot).
FIG. 5B is a side view seen from the direction of arrow A in FIG. 5A (the direction as viewed from the side wall of the scion part of the grafting robot). The cutter driving motor 111 has a vertical support 112.
, And a cutter arm 115 is attached to a rotation shaft 113 of the motor 111. A cutting blade 117 is attached to a cutting blade support piece 116 provided at a tip of the cutter arm 115 in a direction orthogonal to the arm 115. Cutting blade support piece 1 to cutter arm 115
The mounting position of 16 is adjusted by an adjusting tool such as an adjusting screw 119 provided on the cutter arm 115. Adjustment of the mounting height of the cutter driving motor 111 is performed by an adjusting tool such as an adjusting screw 120 provided on the support 112.

Also, the cutter arm 115 lifts the cotyledon (cotyledon to be cut off) of the seedling within the rotation locus of the cutting blade 117 before the cutting blade 117 hits the hypocotyl so as not to obstruct the cutting of the hypocotyl. Cotyledon lifting guide 12
2 are provided. The scion cutting device 23 of the scion shown in FIG. 2 shows a state in which the cutting blade is on the same vertical plane as the support. At the cutting position of the rootstock seedling or spikelet, the distance between the hand of the seedling holding part and the cutting blade 117 of the cutting device is about 1 mm, so that if the screw 118 for fixing the cutting blade 117 protrudes, Upon contact with the hand, the cut surface of the hypocotyl becomes rough and the joining rate decreases. Thus, in this embodiment, both the stock cutting device 19 and the scion cutting device 23 have a structure in which the cutting blade 117 is cantilevered and the hypocotyl cutting position is shifted from the center of the blade length. In the case of the present embodiment, if the cutting blade 117 is a single blade, two places can be used, and if the double blade is used, four places can be used, which is economical.

The cutting position of the seedling is adjusted by adjusting the vertical position of the cutter driving motor 111 and adjusting the expansion and contraction of the cutter arm 115, as described above. However, as shown in FIG. By adjusting the vertical movement (Fig. 6
(A)) The hypocotyl cutting height can be adjusted, and the hypocotyl cutting angle can be adjusted by adjusting both the vertical movement of the cutter driving motor 111 and the expansion and contraction of the cutter arm 115 (FIG. 6B).
Also, by adjusting the extension and contraction of the cutter arm 115 (FIG. 6)
(C)) The hypocotyl incision depth can be adjusted.

Further, since the rotation range of the cutter arm 115 ((c) and (f) in FIG. 4) does not touch the safety cover 143 (FIG. 4) on the front of the grafting robot, the depth of the grafting robot is shortened. The safety area can be increased even if the grafting unit 2 is inadvertently touched.

Further, the locus of the cutting blade 117 of the cutting device may be a straight line as shown in FIG. The cutting blade 145 is attached to the tip of the cutting blade pushing cylinder 144 to cut the hypocotyl by linear motion. FIG. 7B is a view from a position where the cutting blade 145 looks like a plane. When this cutting device is used, the cutting surface of the hypocotyl is straight, so that the cutting surface of the scion and the cutting of the rootstock exactly match at the time of joining, and the survival rate increases.

Next, the procedure of operation of the grafting robot of this embodiment will be described. First, the operation sequence of the grafting robot will be described with reference to FIG. A rootstock hypocotyl hand at the tip of a transport arm of the rootstock transporter 18 (hereinafter, each member of the rootstock transporter 18 is not shown) from which the rootstock seedling set on the rootstock seedling supply plate 13 is extruded. And the rootstock fixed hand, and rotate and transport it 90 degrees. During this time, the rootstock is suspended while supporting the base of the rootstock cotyledon with the neck hanging pieces. The rootstock is changed with a fixed hand, and one cotyledon is left at the cutting position, and the other cotyledons are cut.

Further, the scion set on the scion seedling supply plate 14 is simultaneously pushed out of the scion seedling supply plate 14 simultaneously with the transfer of the stock from the supply position to the cutting position. Each member of the tree transport device 18 is not shown.) The tip is held by a hand-held cotyledon holding hand, a hand-held hypocotyl hand, and a hand-held fixed hand, and is transported to a cutting position. At this point, the scion is fixed outside the locus of the cutting blade with a root fixing hand so that the hypocotyl can be easily cut. The cut stock and scion are each transported by 90 degrees to the joining position, where they are joined by clips 123. At this time, the cotyledon remaining in the rootstock and the pair of cotyledons in the direction opposite to each other are joined in a direction orthogonal to each other. Then, the stock transfer arm and the scion transfer arm return 180 degrees to the initial position, ie, the stock supply position and the scion supply position.

At this time, since the cutting devices 19 and 23 of this embodiment are machines that rotate and use the cutting blade 117, they have the following safety devices. First, foot switches (not shown) are provided on the stock side and the scion side. In this way, the rootstock seedlings and the hogi seedlings can be supplied by different persons to their respective supply plates 1
It is necessary to set to 3 and 14, and when either of two persons wants to stop the robot, the robot can be stopped at any time. Further, since the front surface of the grafting section 2 of the grafting robot is covered with the safety cover 143 (FIG. 4), the robot stops when the safety cover is opened.
Further, when the clip presence sensor (not shown) of the clip joining device 25 detects that the clip has disappeared,
In this case also, the grafting of the rootstock and the scion cannot be performed, so the operation is stopped. However, in this case, once the clip is set,
Work continues with the reset switch. If the grafting robot stops other than when the clip runs out, the work of the grafting robot is restarted from the beginning. The time chart of the stock and the scion of the grafting robot of the present invention is described in Japanese Patent Application No. 4-161512 by the present applicant.
Is disclosed.

[0018]

According to the present invention, since the cutting blade is cantilevered, the screw fixing the cutting blade comes into contact with the seedling or the hand for grasping the seedling, so that the cut surface of the hypocotyl is not roughened, and the joining rate is improved.
In addition, if the cutting blade is a single blade, two places can be used, and if the double blade is used, four places can be used, which is economical. In addition, the turning radius and
The cutting height of the hypocotyl of the seedling is
The cutting angle and cutting depth can be adjusted to appropriate positions.
The wearing rate increases. In addition, the motion locus of the cutting blade of the cutting device is
Hypocotyl cut surface is straight by adopting a straight line configuration
So that the cutting section of the scion and the cutting of the stock match exactly at the time of joining
In addition, the survival rate can be increased.

[Brief description of the drawings]

FIG. 1 is a top view of a grafting robot according to an embodiment of the present invention.

FIG. 2 is a top view of a graft portion of the graft robot according to one embodiment of the present invention.

FIG. 3 is a front view of a graft portion of the graft robot according to one embodiment of the present invention.

FIG. 4 is a side view of a graft portion of the graft robot according to one embodiment of the present invention.

FIG. 5 is a view of a cutting device of the grafting robot according to one embodiment of the present invention.

FIG. 6 is a diagram showing a cutting state of the hypocotyl by adjusting the position of the cutting blade of the seedling cutting device of the grafting robot according to one embodiment of the present invention.

FIG. 7 is a diagram showing a structure of a seedling cutting device that performs a linear motion of the grafting robot according to one embodiment of the present invention.

FIG. 8 is a diagram showing an operation sequence of the grafting robot according to one embodiment of the present invention.

[Explanation of symbols]

1: clip feeder section, 2: graft section, 3: base stock section, 5
... Hoki part, 6 ... Joint part, 9 ... Clip guide rail, 1
0: Rootstock robot manipulator, 11: Hogi robot manipulator, 13: Rootstock supply plate, 14: Rootstock supply plate, 15: Top plate, 18: Rootstock transport device, 19: Rootstock cutting device, 22 ... A scion transport device, 23 ... A scion cutting device, 2
5: Clip joining device, 117: Cutting blade, 144: Cutting blade extrusion cylinder, 145: Cutting blade

Claims (2)

(57) [Claims] 1. A grafting robot for cutting a rootstock seedling and a scion seedling after cutting the rootstock seedling and the scionling seedling with respective cutting devices, wherein each cutting device for the stocking rootstock or the scionling seedling is adjustable in expansion and contraction and is capable of rotating. And a cutting blade supported at the tip thereof. 2. A grafting robot for cutting a rootstock seedling and a scion seedling after cutting the rootstock seedling and the scion seedling with each cutting device, wherein each cutting device for the rootstock seedling or the scion seedling is supported on a rotating shaft whose installation position is adjustable. A grafting robot, comprising: a cutter arm that is capable of rotating and moving while being adjustable in expansion and contraction, and a cutting blade supported at the tip thereof.