JPH06121618A - Device for grafting - Google Patents

Abstract

PURPOSE:To automatically carry out grafting operation in a graft production system without a hand. CONSTITUTION:In a connecting mechanism part 11 for linking a scion 6 and a stock 7 to a joining part 10, an elastic clip 12 made of an elastic material having a cylindrical void part 12a and an opening part 12c for opening the cylindrical void part 12a is used. The elastic clip 12 is grasped by a gripping mechanism 23, the opening part 12c of the elastic clip 12 is mechanically opened by the gripping mechanism 23, the elastic clip 12 with the opening part 12c in an open state is forced to the joining part 10 of the scion 6 and the stock 7 placed at a proper position by a gripping mechanism 23 and the joining part 10 is stored in the cylindrical void part 12a. Then, the open state of the opening part by a gripping and mechanism 25 is released and the gripping state of the elastic clip 12 by the gripping mechanism 23 is liberated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grafting seedling production system for mass-producing excellent vegetable seedlings by the grafting method, and more particularly to a grafting device for automatically carrying out grafting work without manual labor.

[0002]

2. Description of the Related Art In recent years, varieties such as vegetables have been improved, and varieties less susceptible to diseases and varieties capable of obtaining high-quality fruits have been developed. However, it is difficult to develop a variety that has the best overall quality. Therefore, it is possible to produce grafted seedlings that take advantage of the advantages of both by grafting seedlings of varieties that can obtain good quality fruits to rootstock seedlings of varieties that are less susceptible to disease.

Conventionally, when grafted seedlings such as vegetables are produced for such a purpose, one by one is manually produced by a farmer.
I was grafting. This grafting work requires a certain degree of skill and a large amount of work time.

In recent years, a mechanization technique for grafting work or a simplification technique that does not require an excessive degree of training has been developed. Those prior arts are disclosed in, for example, Japanese Patent Laid-Open No. 1-25222.
28, JP-A-2-107125, JP-A-3
-61429, JP-A-2-190118,
JP-A-3-130015, JP-A-3-58718
Japanese Patent Publication, Japanese Patent Publication No. 4-11168, and Japanese Patent Publication No. 4-
It is reported in Japanese Patent No. 6530.

[0005]

However, as described above, the grafting work by hand requires a great deal of time and labor, and also requires skilled skills. Therefore, in the future when labor shortage occurs, It cannot cope with the production of grafted seedlings, which are in increasing demand.

Further, in the above-mentioned prior art aiming at mechanization, it is necessary to collect a graft graft support, which supports and fixes the joint between the scion and the rootstock, as a graft graft after growing to some extent. A technique for automatically collecting the graft support has not been developed yet. Therefore, the work efficiency is reduced because there is still a part that requires human labor.

It should be noted that the scion and the rootstock may be released for a long period of time in a state where the scion and the rootstock are aligned without using a graft support, and the alignment state is released after they have grown. A large amount of jigs to be clamped is required.

The present invention has been made in view of the above circumstances, and by using an elastic clip made of an elastic material as a graft support, it is not necessary to recover the elastic clip later, and the elastic clip is elastic. It is an object of the present invention to provide a grafting device that can mass-produce clips by mechanization, and as a result, can completely automate grafting work, greatly improve the efficiency of grafting seedling production work, and save labor. .

[0009]

In order to solve the above problems, in the grafting device of the present invention, the introduced scion seedlings and rootstock seedlings are cut by the scion cutting mechanism section and the rootstock cutting mechanism section, respectively. Then, the rootstock and the spikelets cut by the alignment mechanism section are aligned with each other at their cutting portions, and then the rootstock and the spikelet aligned by the joining mechanism section are joined.

Then, the joining mechanism portion is formed of an elastic material, and has an elastic clip having a cylindrical cavity and an opening for opening the cylindrical cavity, a grasping mechanism for grasping the elastic clip, and a grasping mechanism. The grip drive mechanism that mechanically opens the opening of the elastic clip that has been opened, and the elastic clip with the opening opened by the grip drive mechanism urges the joint between the aligned rootstock and scion. And the gripping movement mechanism for accommodating the joint portion in the cylindrical void portion, and for releasing the open state of the opening by the grasping drive mechanism after the joint portion is accommodated in the cylindrical void portion and for the elastic clip of the grasping mechanism. It is composed of a control unit for releasing the gripped state.

Further, a string-like elastic clip formed of an elastic material having a cross-sectional shape including a cylindrical void and an opening and a string-like elastic clip are continuously supplied to the gripping mechanism with respect to the joining mechanism. A string-like elastic clip supply mechanism is added, and a cutter mechanism that cuts the string-like elastic clip gripped by the gripping mechanism into a predetermined length to form an elastic clip is added. Also, the elastic clip is molded from natural rubber.

Further, a backup mechanism is added to the joining mechanism portion to support the joining portion between the rootstock and the scion, which the elastic clip is biased by the gripping movement mechanism, from the direction opposite to the biasing direction.

[0013]

In the grafting device thus constructed,
For example, an elastic clip having an opening for opening the cylindrical void portion for holding the stem of the plant seedling, which is formed of an elastic material such as rubber, is used. While mechanically opening, while biasing the stem of the rootstock and the stem of the scion to be grafted against the axis of the stem, after storing the joint in the cylindrical void of this elastic clip,
The mechanical force opening the opening of the elastic clip is released, and the pinched state of the elastic clip is released. As a result, the joint is automatically clamped by the elastic clip.

Further, a string-like elastic clip having a cross-sectional shape including a cylindrical void portion and an opening and formed into a long string-like shape is used, and the string-like elastic clip is cut by a cutter mechanism to a length required for a graft. The elastic clips described above are sequentially produced by sequentially cutting the elastic clips. Then, grafting is automatically performed using elastic clips that are sequentially created. Further, if the elastic clip is formed of natural rubber, it is not necessary to collect the grafted seedling even if it grows.

Further, by providing a backup mechanism for supporting the stem of the joint portion from the side opposite to the side to which the elastic clip is supplied during the grafting operation, the grafting can be performed more easily.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing an entire grafted seedling production system incorporating a grafting device according to an embodiment of the present invention. It should be noted that the steps of filling the pots (trays) 1 and 1a with soil and sowing are omitted and not shown.

The scion seedlings 2 pre-grown in the pot 1 are grafted by a grafting device 15 by a transport mechanism (not shown) such as a transport belt.
It is carried into the scion cutting mechanism section 4 inside. Hoki cutting mechanism 4
Automatically cuts the stem portion of the scion seedling 2 at a predetermined angle using a cutter to form a scion 6. The cut spikes 6 are carried into the next alignment mechanism section 8 while being sandwiched by a support member (not shown). In addition, pot 1 with roots and stems remaining
Are automatically removed from the production line.

On the other hand, the rootstock seedlings 3 pre-grown in the pot 1a are also carried into the rootstock cutting mechanism section 5 in the grafting device 15 by a transport mechanism (not shown). The rootstock cutting mechanism section 5 automatically cuts the stem portion of the rootstock seedling 3 with a cutter at a predetermined angle to form a rootstock 7. The cut root 7 is in the pot 1a
Is mounted on a dolly (not shown) and is carried into the next alignment mechanism section 8. The cut upper part is automatically excluded from the production line.

The positioning mechanism 8 sandwiches the stem of the spiked tree 6 and the stem of the rootstock 7 that have been carried in by a pair of support members, and cuts the cut surface of the spikelet 6 and the cut surface of the rootstock 7. Are aligned so as to contact with each other, and the grafted seedling 9a in a state before bonding is created.
The grafted seedling 9a in a state where each stem is sandwiched by a pair of support members is carried into the next joining mechanism section 11 together with the supporting mechanism having the pot 1a.

The joining mechanism portion 11 fixes the joining portion 10 of the scion 6 and the rootstock 7 with the elastic clip 12 to the grafted seedling 9a in the pre-joining state that has been carried in, and the scion 6 and the rootstock 7 are fixed. Grafted seedling 9b is obtained by joining.

The grafted seedling 9b in which the scion 6 and the rootstock 7 are joined by the elastic clip 12 is left for several days in the curing device 13 in which the growth environment such as temperature, humidity and light amount is adjusted. Then, the grafted seedling 9 in which the joint between the scion 6 and the rootstock 7 was alive
c. The grafted seedlings 9c having the joints alive are carried into the next nursery facility 14 by the transport mechanism. The grafted seedling 9c carried into the seedling-planting facility 14 is grown for a predetermined period of time to be a seedling, and becomes the final grafted seedling 9d that can be transplanted to a cultivation site.

The scion cutting mechanism section 4, rootstock cutting mechanism section 5, alignment mechanism section 8 and joining mechanism section 11 shown in FIG.
Constructs a grafting device 15 for automatically cutting, aligning and joining. Next, a detailed description will be given of the joining mechanism portion 11 in the grafting device 15 configured as described above.

FIG. 2 is a schematic view for explaining the general operation of the joining mechanism section 11. In the support mechanism 16 carried in from the alignment mechanism section 8, the rootstock 7 and the spikelets 6 grown in the pot 1a are aligned by the respective support members 18 and 17 so that the joint section 10 is not displaced. The grafted seedling 9a in the pre-joined state is mounted. And this grafted seedling 9
A back-up plate 19 is in contact with the joint portion 10a from the back side. The backup plate 19 is used for the support mechanism 1.
It is possible to move back and forth by a moving mechanism 20 such as a cylinder incorporated in 6. The thickness (t) of the backup plate 19 is set to be equal to or slightly smaller than the diameter of the stem of the scion 6 and the rootstock 7.

A gripping moving mechanism 21 is arranged along a conveying path indicated by an arrow in the figure of the supporting mechanism 16, and on a rail 22 laid in the gripping moving mechanism 21 in a direction orthogonal to the conveying path. A grip drive mechanism 25 is movably attached to the. A fulcrum 24 of the gripping mechanism 23 is fixed to the gripping drive mechanism 25. The grip moving mechanism 21 and the rail 22 control the movement of the grip mechanism 23 and the grip driving mechanism 25 in a direction orthogonal to the transport path.

A reel 26 around which a string-like elastic clip 27 is wound is arranged above the tip of the gripping mechanism 23. The string-like elastic clip 27 supplied from the reel 26 is supplied to the tip of the gripping mechanism 23 via a pair of rollers 28a and 28b. A cutter 29 is provided near the tip of the gripping mechanism 23 and cuts the string-like elastic clip 27 whose tip is clamped by the gripping mechanism 23 into a predetermined length. Therefore, the gripping mechanism 2 after being cut
The string-shaped elastic clip 27 sandwiched between the three becomes the elastic clip 12. The pair of rollers 28a and 28b has a function of setting the amount of supply of the string-like elastic clip 27 to the gripping mechanism 23 once, that is, the length of the elastic clip 12. Next, the elastic clip 12 used in the joining mechanism portion 11 will be described with reference to FIG.

FIG. 4A is a perspective view of the elastic clip 12 obtained by cutting the string-like elastic clip 27 shown in FIG. 4B at the position of the arrow in the drawing. 4 (c) is a plan view, and FIG. 4 (d) is a plan view showing a state where the elastic clip 12 is opened.

In the device of this embodiment, the elastic clip 12 is molded from natural rubber. By using natural rubber, the elastic clip 12 is not harmful even if the final grafted seedling 9d is left in a natural environment such as a cultivation place, and is easily weathered naturally.

As shown in FIG. 4A, the elastic clip 1
2 is a cylindrical void portion 1 for sandwiching the seedling stem almost in the center.
2a is formed, and a cavity 12b and an opening 12c for opening the cylindrical cavity 12a toward the outside are formed. Further, on the side surface, a pair of groove portions 12 for holding the tip of the gripping mechanism 23 and opening the opening 12c.
e, 12d are formed. A recess 12f for facilitating the opening operation is formed on the surface opposite to the opening 12c.

By inclining the end face of the opening 12c (inverted triangular shape), the stem of the grafted seedling 9a can be easily guided into the cylindrical void 12a. Also, the groove 1 on the side surface
By making the cross-sectional shapes of 2e and 12d arc-shaped,
The tip of the gripping mechanism 23 can be easily clamped and the opening 12c can be easily opened.

Further, by making a recess at the rear end of the cylindrical void 12a, the cylindrical void 12a can be easily opened. Further, by setting the width on the side of the opening 12a to be narrower than the width of the recess 12f, even if there is an obstacle in the vicinity of the stem, it is easy to insert it toward the stem. Next, the joining operation in the joining mechanism section 11 will be described with reference to FIGS. 2, 3, 5, and 6.

(1) The support mechanism 16 carried in from the position adjusting mechanism 8 is stopped at a position facing the tip of the gripping mechanism 23. Then, the rollers 28a. 28b is driven to lower the string-like elastic clip 27 by a predetermined length.

(2) As shown in FIG. 3A, the grip driving mechanism 25 is activated to move the rear end of the grip mechanism 23 around the fulcrum 23 in the direction of the arrow, so that the tip of the grip mechanism 23 is moved. Grooves 12e on both sides of the string-like elastic clip 27. 1
Hold 2d. (3) The cutter 29 is activated to cut the string-like elastic clip 27 so that the gripping mechanism 23 holds the elastic clip 12.

(4) As shown in FIG. 3B, the grip drive mechanism 25 is driven to urge the grip mechanism 23 in a state of sandwiching the elastic clip 12 along the rail 22 toward the grafted seedling 9a. At the same time, the moving mechanism 20 in the support mechanism 16 is driven to bring the backup plate 19 into contact with the joint 10 of the grafted seedling 9a. (5) As shown in FIG. 6, the gripping mechanism 23 is moved further forward so that the joint portion 10 between the scion 6 and the rootstock 7 is elastically clipped.
To the cylindrical void 12a.

(7) Next, the moving mechanism 20 is reversed to move the backup plate 19 backward. At the same time, the grip drive mechanism 25 is driven in the opposite direction to release the gripping state of the grip mechanism 23 with respect to the elastic clip 12. (8) The grip moving mechanism 21 is reversed to return the grip mechanism 23 to the original position.

(9) The supporting members 18 and 17 of the grafted seedling 9b to which the joint portion 10 is fixed by the elastic clip 12 are opened. Then, the grafted seedling 9 mounted on the support mechanism 15
b is carried out from the grafting device 15 to the next curing device 13.

In the grafting device thus constructed, in the joining mechanism section 11, the joining section 10 of the scion 6 and the rootstock 7 in the grafting seedling 9a in the pre-joining state carried in from the positioning mechanism section 8 is joined. On the other hand, the elastic clip 12 formed of natural rubber is automatically attached. Therefore, since the joining work which has been conventionally performed manually by the worker is not required, the work efficiency in the production of grafted seedlings can be dramatically improved.

Further, since the elastic clip 12 is formed of an organic material such as natural rubber, it will be decomposed after long-term use, so that even if the grafted seedling 9d grows, the elastic clip 12 will be decomposed. Need not be recovered.
Further, since the elastic clip 12 is inexpensive, the economical burden is small even if it is left unattended.

Further, after the elastic clip 12 is clamped by the gripping mechanism 23 with the string-like elastic clip 27, the cutter 29 is used.
Got by cutting with. Therefore, a mechanism for picking up the elastic clip 12, which is a fine member, is unnecessary, and the structure of the joining mechanism portion 11 can be simplified. The present invention is not limited to the above embodiment.

For example, as shown in FIG. 7A, the spring 3
It is also possible to use the gripping mechanism 23a in which 0 is incorporated. In this case, the elastic clip 12 is clamped by urging the rear end of the gripping mechanism 23a by the gripping drive mechanism 25a in the arrow direction. Further, as shown in FIG. 7B, by moving the grip drive mechanism 25a in the arrow direction,
The elastic clip 12 can be held by the gripping mechanism 23b. FIG. 8 is a schematic view showing a backup mechanism of another embodiment. The spring 13 is attached to the backup plate 19a.
Is wrapped around.

That is, when there is a possibility that the joint portion 10 of the grafted seedling 9a cannot be accurately positioned, the backup plate 19a is formed into a plate having a flat surface in a direction perpendicular to the direction in which the elastic clip 12 approaches. The tip of the elastic clip 12 touches the backup plate 19a,
Further, when a pushing force of a predetermined amount or more is applied, the spring 31 is supported by a spring 31 that retracts, and the joint is sandwiched in the elastic clip 12 in the retracted state.

9 (a), 9 (b) and 9 (c) are views showing the shapes of the elastic clips 32, 33 and 34 of the other embodiments, respectively. Both of the elastic clips 32 to 34 are opened by pulling the protrusions provided on both sides. For each shape of the elastic clips 32 to 34, as shown in FIGS.
Respective gripping mechanisms 23c and 23d and gripping drive mechanisms 25c and 25d shown in (c) are prepared.

FIG. 11 is a view showing the shape of the elastic clip 35 in still another embodiment, and FIG. 12 is a view showing the operation of mounting the elastic clip 35 on the joint portion 10 of the scion 6 and the rootstock 7. is there. That is, the opening of the elastic clip 35 is pushed open by the backup plate 19b having a fan-shaped tip, and the joint portion 10 of the spike 6 and the rootstock 7 is pushed into the cylindrical void portion of the elastic clip 35. The gripping mechanism 36 has only the function of gripping the elastic clip 35 as shown in the drawing, and does not have the function of opening the opening.

[0044]

As described above, according to the grafting device of the present invention, the elastic clip formed of the elastic material is used as the grafting support. Therefore, it is not necessary to collect the elastic clip later, and the elastic clip can be mass-produced inexpensively by mechanization. As a result, the grafting work can be fully automated, the production efficiency of the grafted seedling can be greatly improved, and the labor can be saved.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an entire grafted seedling production system incorporating a grafting device according to an embodiment of the present invention,

FIG. 2 is a schematic view showing a joining mechanism portion of the embodiment apparatus,

FIG. 3 is a view showing an opening operation of an elastic clip in the joining mechanism section,

FIG. 4 is a view showing an elastic clip used in the joining mechanism section;

FIG. 5 is a schematic view showing a joining operation in the joining mechanism section,

FIG. 6 is a schematic view showing a joining operation in the same joining mechanism section,

FIG. 7 is a view showing the opening operation of the elastic clip in the grafting device according to another embodiment of the present invention,

FIG. 8 is a schematic view showing a joining operation in a grafting device according to still another embodiment of the present invention,

FIG. 9 is a view showing an elastic clip used in a grafting device according to still another embodiment of the present invention;

FIG. 10 is a view showing the opening operation of the elastic crib according to the embodiment.

FIG. 11 is a view showing an elastic clip used in a grafting device according to still another embodiment of the present invention;

FIG. 12 is a schematic diagram showing a bonding operation in the example.

[Explanation of symbols]

1, 1a ... Pot, 2 ... Scion seedling, 3 ... Rootstock seedling, 4 ... Scion cutting mechanism section, 5 ... Root cutting mechanism section, 6 ... Scion, 7 ... Rootstock, 8 ... Alignment mechanism section , 9a, 9b, 9c. 9d ... Grafting seedling, 10 ... Joining part, 11 ... Joining mechanism part, 12, 3
2, 33, 34, 35 ... Elastic clip, 12a ... Cylindrical void, 12c ... Opening, 13 ... Curing device, 14 ... Nurturing facility, 15 ... Grafting device, 17, 18 ... Support member, 1
9.19a, 19b ... Backup plate, 23, 36 ... Gripping mechanism, 24 ... Support point, 25 ... Gripping drive mechanism, 26 ... Reel, 27 ... String-like elastic clip, 28a. 28b ... roller, 29 ... cutter, 30.31 ... spring.

Claims (4)

[Claims] 1. The introduced rootstock and rootstock seedlings are respectively cut by a rootstock cutting mechanism section and a rootstock cutting mechanism section, and the cut rootstock and the rootstock are mutually cut by an alignment mechanism section. Is a grafting device that joins the rootstock and the scion that have been aligned by the joining mechanism section, the joining mechanism section being formed of an elastic material and having a cylindrical void. Section and an elastic clip having an opening for opening the cylindrical void, and a gripping mechanism for gripping the elastic clip,
A gripping drive mechanism that mechanically opens the opening of the elastic clip gripped by this gripping mechanism, and a rootstock and a scoop on which the elastic clip with the opening opened by the gripping drive mechanism is aligned. Of the gripping movement mechanism for urging the joint part to store the joint part in the cylindrical cavity, and after the joint part is accommodated in the cylindrical cavity, opening of the opening by the gripping drive mechanism. A grafting device including a control unit that releases the state and releases the gripped state of the elastic clip by the gripping mechanism. 2. The joining mechanism portion is a string-like elastic clip formed of an elastic material having a cross-sectional shape including the cylindrical void portion and an opening, and the string-like elastic clip is continuously gripped by the gripping mechanism. The grafting device according to claim 1, further comprising: a string-like elastic clip supply mechanism for supplying the string-like elastic clip to the substrate and a cutter mechanism for cutting the string-like elastic clip gripped by the gripping mechanism into a predetermined length to form the elastic clip. 3. The graft device according to claim 1, wherein the elastic clip is made of natural rubber. 4. The joining mechanism portion includes a backup mechanism that supports a joining portion between a rootstock and a scion on which the elastic clip is urged by a gripping movement mechanism, from a direction opposite to the urging direction. The grafting device according to 1.