JP3010775B2 - 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 apparatus for producing grafted seedlings by automatically supplying and bonding rootstock seedlings and spikelets to produce grafted seedlings.

[0002]

2. Description of the Related Art Cucumber seedlings cultivated in cucumber, eggplant 95%, and watermelon 100% are seedlings of cucumber and solanaceous fruits and vegetables, especially those grown in facilities such as glass rooms and greenhouses. Seedlings are used. The main purpose of using grafted seedlings is to avoid continuous cropping failure and to provide low-temperature extensibility.However, although the time required for breeding has been shortened due to the development of biotechnology in recent years, the effect exceeding the effect of using grafted seedlings has not been achieved at this stage. It is the present situation that cannot be expected.

[0003] Most of the grafting work is performed by hand, and the work efficiency is about 500 to 700 strains per person per day, even if a simple tool is used. As described above, there is a limit in improving the work efficiency of the grafting work, and there is a demand for efficiency and high precision by mechanization.

Therefore, a grafting seedling manufacturing apparatus described in Japanese Patent Application Laid-Open No. 2-107125 has been proposed. This grafting seedling production apparatus includes a rootstock seedling mounting table and a headstock seedling mounting table for manually mounting rootstock seedlings and spikelet seedlings separately, and a seedling mounted on the rootstock seedling mounting table and the scionling seedling mounting table. A transport mechanism that grips a predetermined position by a transport arm and transports each separately, a cutting mechanism that cuts seedlings transported by each transport mechanism at a predetermined position, and a cutting of rootstock and scion gripped by both transport mechanisms And a bonding mechanism for fixing the bonding position with the surfaces facing each other at a predetermined rotation position, both of which are installed upward on the base plate, and the bonded grafted seedling is an outlet formed in the base plate. It is designed to fall from and accommodate.

[0005]

However, in this apparatus, since the drive unit is located below the transfer arm, it is necessary to adopt a configuration in which the adhered seedlings are dropped from the outlet.
When releasing the seedlings by opening the gripping part of the arm, the cotyledons of the seedlings may be caught on the tip of each transfer arm, which may hinder the next step, and the seedlings are easily damaged by the impact of the fall,
The work of planting the discharged seedlings in each pot must be done manually. In addition, if the joining fails, the cotyledon portion of the scion leaves in the scion transport mechanism, so that there is a problem in that the step of grasping the next-order scion seedling is hindered. Further, the step of supplying seedlings to the seedling mounting table needs to be performed manually.

The present invention has been made in view of the above-mentioned problems of the conventional grafted seedling manufacturing apparatus, and has as its object to provide a practical and highly workable grafted seedling manufacturing apparatus.

[0007]

In order to achieve the above object, the present invention has the following constitution.

According to a first aspect of the present invention, there is provided a rootstock transfer mechanism for holding a seedling serving as a rootstock waiting at a predetermined position by a rootstock seedling holding means and transferring the seedling to a grafting position, and arranging the seedling at a predetermined height position. A scion transport mechanism for holding a seedling to be a scion waiting at a predetermined position by a scion seedling holding means and transporting the seedling to a grafting position and arranging the seedling at a predetermined height position; A cutting mechanism for cutting a predetermined portion of the seedling, and an adhesive mechanism for bonding both cut surfaces of the rootstock and the scion transferred to the grafting position by the two transport mechanisms, wherein the rootstock transport mechanism includes A lifting mechanism for raising and lowering the tree seedling holding means is provided, and a seedling delivery mechanism is provided at a position where the gripping means moves down and stops.

According to a second aspect of the present invention, in the scion conveying mechanism, the scion seedling holding means for holding the scion seedlings is retracted from the grafting position prior to the stocking seedling holding means after the grafting is completed. The grafted seedling production apparatus according to claim 1, further comprising:

According to a third aspect of the present invention, there is provided a rootstock supply mechanism for supplying a seedling to be a rootstock to a predetermined position of the rootstock transport mechanism, comprising: 3. The grafted seedling production apparatus according to claim 1, further comprising: a root pot pushing tool for pushing a root pot portion of the seedling forward, and means for simultaneously driving the holding tool and the root pot pushing tool.

[0011]

In the grafting seedling manufacturing apparatus configured as described above, when seedlings to be rootstocks are supplied one by one to the rootstock transport mechanism, the rootstock transport mechanism grips the seedlings and transports them to the grafting position. . On the other hand, when the seedlings to become scions are supplied one by one to the scion transport mechanism, the scion transport mechanism grips the seedlings and transports them to the grafting position. Then, each seedling being transported by both transport mechanisms is cut at a predetermined portion by a corresponding cutting mechanism, and when the rootstock and spike come to the grafting position, both cut surfaces are bonded by an adhesive mechanism to produce grafted seedlings. Is what you do. And this grafted seedling,
It is grasped by the rootstock seedling grasping means and descends to the seedling delivery mechanism arranged below.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The grafting seedling manufacturing apparatus 1 of the present invention includes a rootstock supply mechanism 2 for each rootstock grown by the rootstock raising device 11.
When supplied to the rootstock transport mechanism 31 by 1, the rootstock transport mechanism 31 grips the seedling and transports it to the grafting position,
When the seedlings which become the seedlings raised by the seedling raising device 12 are supplied one by one to the scion transport mechanism 32 by the scion supply mechanism 22, the scion transport mechanism 32 grasps the seedlings and reaches the grafting position. It is configured to be transported. Then, both transport mechanisms 31,
The seedlings being conveyed at 32 are cut at predetermined portions by the corresponding cutting mechanisms 41 and 42, respectively, and when the rootstock and the splint come to the grafting position, both cut surfaces are adhered by the clip pinching mechanism 51 and are already adhered. Is configured to be delivered to a predetermined position by the delivery conveyor 71.

As shown in FIG. 2, both the stock supply mechanism 21 and the scion supply mechanism 22 should hold the stock 3 and the scion 4 by suspending them near the cotyledon development bases 3a and 4a. A holding plate 23 as a holding tool having slits at appropriate intervals, and a root pot extruding plate 24 as a root pot extruding tool that hangs down from the lower surface of the holding plate 23 and pushes out the root pot portion of the seedling forward.
Are integrally fixed to the tip of a rod 26 of a supply cylinder 25 that can reciprocate, and these are installed on the right and left sides of the machine frame 2, respectively. Further, reflection type optical sensors 27a and 27b for detecting that the seedling has come to a predetermined position are respectively arranged vertically above and below the holding plate 23, and the lower optical sensor 27a and the upper optical sensor 27b are both positioned at the predetermined position. Is detected, the rod 2 of the supply cylinder 25 is
6 is configured to move forward.

The stock transport mechanism 31 includes a stock transport arm 34a that can be rotated by 180 degrees about a support shaft 33a by a rotation cylinder 31a, and a grip for holding the stock at the tip of the stock transport arm 34a. It has a pair of left and right fingers 35a, 35a that can be freely opened and closed, and the support shaft 33a is configured to be able to move up and down by a cylinder 37 so that a stock carrier arm 34a integrated with the support shaft 33a can move up and down in the vertical direction. The scion transfer mechanism 32 includes a scion transfer arm 34b that can be turned 180 degrees about a support shaft 33b by a rotation cylinder 32a.
A pair of left and right fingers 35b, 3 attached to the tip of the scion transfer arm 34b so as to be able to open and close to grasp the scion.
5b, and the rear end of the scion transfer arm 34b is connected to a cylinder 36 that is driven to expand and contract in the length direction thereof.
4b is configured to be movable back and forth in its length direction. As shown in FIG. 2, both the stock transport mechanism 31 and the scion transport mechanism 32 are arranged at predetermined height positions, and a space where a delivery conveyor 71 and the like can be set is provided below them. The stock carrier arm 34a and the scion carrier arm 34b are installed in such a manner as to be suspended below cylinders 31a and 32a, which are driving sources installed on the upper cross section of the machine frame 2, respectively. Further, a reflection plate 28a is appropriately provided on the machine frame 2 at a position to be opposed to the optical sensor 27a, and a reflection plate 28b is attached to the transfer arms 34a, 34b at a position opposed to the optical sensor 27b.
These reflection plates 28a, 28b are connected to the optical sensors 27a, 2b.
The light emitted from the light emitting portion 7b is reflected toward these light receiving portions.

A stock cutting mechanism 41 and a scion cutting mechanism 42 are provided in the course of the rotation of each of the transfer arms 34a and 34b of the stock transfer mechanism 31 and the scion conveyance mechanism 32. The stock cutting mechanism 41 and the scion cutting mechanism 42 are shown in FIG.
As shown in FIG.
The cutting blades 44 and 46 are attached to the tips of the cylinders 43a and 43b installed toward the cylinders a and 33b at an appropriate inclination angle. These cutting mechanisms may be configured such that, for example, a cutting blade 44 (, 46) is attached to the outer end of a disk, and the disk is driven to rotate by a motor or the like. The stock supply mechanism 21 and the stock cutting mechanism 41 are connected to the stock transport mechanism 31.
It is preferable that the support shaft 33a is arranged so as to be orthogonal to the center, and the scion cutting mechanism 42 and the scion supply mechanism 22 are arranged to be orthogonal to the support shaft 33b. With such an arrangement, positioning at the time of assembling and fine adjustment work thereof are facilitated.

The clip 62 used for grafting of the grafted seedling by the present apparatus is generally used in the process of manufacturing grafted seedlings by hand. As shown in FIG. 3, the front end of the clip 62 has protrusions 62a, 62a projecting up and down. Have. The clip holding mechanism 51 to which the clip 62 is to be supplied is provided at the center of the upper side surface of the square cylindrical body at the take-out part of the vibration type part feeder 54 having the spiral rising path 53 provided along the inner surface of the bowl body 52. The guide rail 55 is formed by notching the portion in the length direction and connecting a guide rail 55 having a groove for guiding the protrusion 62a to the bottom surface, and a clip pushing cylinder 56 is provided at the upper front end of the guide rail 55 as shown in FIG. The guide rail 55 has a front end connected to the stock transport mechanism 31 as shown in FIG.
Is positioned on a line connecting the support shaft 33a of the support member 33 and the support shaft 33b of the scion transport mechanism 32. Then, the clip clamping mechanism 51 transfers the clip 62 from the parts feeder 54 to the guide rail 55.
, And the clips 62 are pushed out one by one and supplied forward by the advance of the arm of the clip pushing cylinder 56. Further, a temporary fixing mechanism 61 is formed by extending flexible holding members 60, 60 at the front ends of the fingers 59, 59, which can be freely opened and closed, at the upper front end of the clip holding mechanism 51.
Place.

On the other hand, the seedling raising devices 11 and 12 are for cultivating the rootstock seedlings 3 and the scionling seedlings 4 from the seed stage, and subjecting them to the grafted seedling production process using the present apparatus. These seedling raising devices 11 and 12
Is a single seedling incubator 13 long in the front and back as shown in FIG.
13 are arranged in parallel in the left-right direction. Each seedling raising unit 13 is provided with a plurality of recesses 15 for growing the seedlings 3 (, 4) at regular intervals in the length direction on a rectangular parallelepiped main body 14, and each recess 15 has two sides perpendicular to the arrangement direction. Each of the recesses 15 is an opening, and each of the seedling raising devices 13
When it is stored in 0, it is configured to be integrally continuous in the left-right direction. The seedling raising devices 11 and 12 are integrally accommodated in the container 10 at the time of cultivation and transfer, and
... is loaded with soil 13b such as soil or artificial medium,
Then, the seeds are removed, and one seedling 3 (,
4) is cultivated.

Numerals 16 and 17 denote nursery feeding devices, which are symmetrical with the stock supply side B1 and the scion supply side B2. That is, as shown in FIG. 1 and FIG.
Nursery stand 6 and 7 where 12 should be placed are installed on the left and right,
An appropriate mechanism (not shown) for urging the seedling raising devices 11 and 12 from the left and right toward the center of the machine is provided, and a support 19a standing at the tip of an arm of a feed cylinder 19 for feeding the seedling raising device 13 forward is provided. The middle part of the feed claw 18 to be engaged with the rear end of the seedling raising unit 13 is pivotally connected, and a sphere 18a is fixed to the other end of the feed claw 18, and a receiving member 20a that fits loosely with the sphere 18a is supported by a support. It is integrally connected to the tip of the arm of the feed pawl drive cylinder 20 which is adjacent to the inside of 19a upward.

Then, as shown in FIG. 1, the delivery conveyor 71 for transferring the joined grafted seedlings 5 to the next step is placed on the machine frame 2.
Are arranged in a direction substantially perpendicular to the above-described seedling supply direction (A1-A2 direction in the figure) (B1-B2 direction in the figure). Although not shown, the delivery conveyor 71 has a pot supply step and a soil filling machine in the left direction in the figure, and has an acclimatization environment control step to manage the grafted seedlings 5 in the right direction in the figure. The pot 30 is sent in a direction toward the scion side.

Each air cylinder and each finger used in the present apparatus are operated by supplying compressed air from an air compressor (not shown). These air cylinders, fingers, and the like are operated by a programmable controller (not shown) in a predetermined order as described later.

The process of operating the grafted seedling production apparatus 1 of the present invention to join the rootstock 3 and the scion 4 to produce the grafted seedling 5 will now be described.

Prior to the grafting seedling production process, the seedling raising devices 11, 1 in which a large number of the above seedling raising devices 13 are previously arranged in parallel on the left and right.
2 are accommodated in the container 10, and each of the recesses 15, 15,... Is filled with soil 13b such as soil or an artificial medium, the seeds are dismantled, and one seedling 3 (, 4) is placed in each of the recesses 15. Growing.
In this cultivation, each seedling 3 (, 4) is adjusted by adjusting the light irradiation direction.
So that the cotyledons 3c and 4c are oriented in a fixed direction.
A2) Direction, front and rear (B1-B)
2) It is preferable to unify the directions.

Then, after placing the seedling raising devices 11 and 12 on the seedling raising device mounting tables 6 and 7 of the seedling raising device sending devices 16 and 17, the seedling raising device sending devices 16 and 17 are operated, and one single seedling raising device 13 is inserted. Send forward one by one. That is, the feed claw drive cylinder 20 is driven to rotate the feed claw 18 downward, and engages with the rear end of the seedling raising unit 13 located closest to the machine frame 2. The seedling raising unit 13 is gradually sent forward. At this time, the cultivated soil 13b extending in the left-right direction across the individual seedling raising units 13, 13,... Was sheared along the boundary surface between the seedling raising single units 13, 13 as shown in FIG. In each concave portion 15 of the seedling raising unit 13, the cultivation soil 13 b is placed in a dice-shaped root pot 13 c corresponding to the shape of each concave portion 15 and placed.

When the rootstock 3 of the seedling raising unit 13 sent forward is detected by both the optical sensor 27a and the optical sensor 27b of the rootstock supply mechanism 21, the feed cylinder 19 is stopped once and the supply cylinder 25 is stopped. Is pushed out, and FIG.
As shown in (a), the hypocotyl part 3b of the rootstock 3 is
The rootstock 13c of the rootstock seedling 3 is pushed out toward the inside of the machine by the rootpot pushing plate 24 while being pinched by the slit of the rootstock seedling 3, and is securely taken out from the recess 15 of the seedling incubator unit 13, and the rootstock that stands by at the receiving position in advance. The finger 3 in the open state of the transport mechanism 31
It protrudes between 5a and 35a. At this time, the seedling raising unit 1
When the root mortar 13c comes off from the root 3, the seedlings 3 try to fall due to the weight of the root mortar 13c.
3 is received and held by the slit on the upper surface (FIG. 7).
(B)). Here, the seedling 3 is surely lowered by the weight of the root mortar 13c until the cotyledon developing base 3a is received by the holding plate 23. Therefore, even when the height of the seedlings is various, the cotyledon developing base 3a must be moved to the holding plate 23 without fail. It can be accurately arranged on the upper surface, and the error of the cutting position in the subsequent cutting step or the like can be kept extremely small. In addition, since the rootstock seedlings 3 can be directly taken out of the seedling raising unit 13 and placed on the holding plate 23, the seedling placement step, which has conventionally been manually placed in the slits of the seedling mounting table, can be greatly simplified. Automatically and continuously. Furthermore, root bowl extruded plate 2
4 extrudes the root pot 13c at the same time as the holding plate 23, so that no unreasonable traction force is applied to the cotyledon 3c or the root when removing the rootstock 3 and there is no risk of damaging the rootstock 3. In addition, since the light sensors 27a and 27b are provided and the supply cylinder 25 of the rootstock supply mechanism 21 is operated when the seedling 3 comes to a predetermined position, the recess 15
Regardless of the position of the seedlings 3 in the plant, the seedlings 3 can be taken out without fail and there is little malfunction, and there is versatility regardless of the type of seedlings to be raised. Furthermore, as described above, the supply cylinder 25 is configured to be pushed out only when both the optical sensor 27a and the optical sensor 27b detect a seedling. Optical sensor 27
b, it is not supplied to the joining step but is eliminated and sent forward. Therefore, there is an advantage that the occurrence of defective grafted seedlings using abnormal seedlings can be prevented beforehand, and the seedlings of the mating partner are not wasted.

Next, the protruding rootstock seedlings 3 are clamped by closing the fingers 35a, 35a of the rootstock transport mechanism 31, and the arm 34a is turned to transport the rootstock seedling 3 to the grafting position which is the tip of the clip clamping mechanism 51. . At this time, one root portion of the cotyledon development of the rootstock seedling 3 is cut at a cutting angle of about 30 degrees by the rootstock cutting mechanism 41 arranged in the rotation path. In this cutting step, unnecessary cutting pieces fall, but as described above, the cylinders 31a and 32a serving as the driving sources
Since the cylinders 31a and 32a are installed above the cylinders 31a and 32a, there is no possibility that foreign matter such as cultivation pieces may enter the cylinders 31a and 32a.

On the other hand, the scion seedlings 4 are also removed from the seedling incubator 12 in the same process as the stock seedlings 3 and are transferred to the fingers 35b, 35b of the scion transport mechanism 32 via the holding plate 23 of the scion supply mechanism 22. And the transfer arm 34b
To convey to the grafting position which is the tip of the clip clamping mechanism 51. The scion seedlings 4 are cut by the scion cutting mechanism 42 during the rotation of the arm 34b, and the cutting of the scions cuts the hypocotyl of the scion seedlings 4 at a cutting angle of about 10 degrees.

In this manner, the rootstock seedling 3 and the hogi seedling 4 conveyed to the grafting position which is the tip of the clip holding mechanism 51
Are arranged with their cut surfaces facing each other. However, since there is a slight gap between the cut surfaces in practice,
Is operated to temporarily fix the two cut surfaces by holding the joining portion from the left and right by the holding body 60. Here, the clip holding mechanism 51 is operated to supply the clip 62 toward the front, and the joining portion between the rootstock seedling 3 and the scionling seedling 4 is pinched and adhered from the left and right sides by the clip 62, thereby grafting. The seedling 5 is manufactured. Here, as described above, the rootstock seedlings 3 and the scionling seedlings 4 were cultivated in the same direction of their cotyledons 3c and 4c. As a result, the cotyledons 3c of the rootstock seedlings 3 became the cotyledons of the scionling seedlings 4 at the time of bonding. Since the direction is substantially perpendicular to 4c, the cotyledon 3c of the rootstock and the cotyledon 4c of the scion do not interfere with each other, so that a force that separates the joint is not applied, the survival rate of grafted seedlings is improved, and the cotyledon of the rootstock is improved. There is an advantage that the growth of the seedlings is not hindered by the cotyledons of the scion.

Thereafter, the fingers 35b, 35b of the scion carrying mechanism 32 are opened, and the scion carrying arm 34b is quickly retracted by the operation of the cylinder 36 to release the scion seedlings 4. On the other hand, the fingers 35a, 35a of the stock transport mechanism 31 are lowered toward the lower delivery conveyor 71 by the pushing operation of the cylinder 37 while holding the embryo shaft 3b of the grafted seedling 5, and are delivered to the delivery conveyor 71. After the root pot 13c of the grafted seedling 5 is placed on the pot 30 that has been placed and the fingers 35a and 35a are opened, the grafting seedling 5 is moved by the movement of the delivery conveyor 71 and the finger 35a is moved.
a and 35b to be transported. Here, as described above, the stock transport mechanism 31 and the scion transport mechanism 32 are arranged above and the delivery conveyor 7 arranged below the same.
Since the grafted seedlings 5 are configured to be lowered on the top 1, there is an advantage that damage to the grafted seedlings 5, especially the root basin 13c, can be effectively prevented. Since the grafted seedling 5 escapes from between the fingers 35 and 35 by the movement of the delivery conveyor 71 and is transported, when the transport arm 34a rises again, the cotyledon portion of the grafted seedling 5 is caught by the transport arm 34a and rises. There is no risk of interfering with the process.

Here, since the scribing transfer arm 26 is configured to retreat rapidly by the operation of the cylinder 25 as described above, even if the bonding in the bonding process fails,
The scion seedlings 4 left on the fingers 35b, 35b cannot follow the retreating operation of the transfer arm 26 due to inertia, and are dropped and discharged. Therefore, the scion seedlings 4 do not remain on the scion transfer arm 26. Has the advantage that the step of grasping the next-order scion seedlings 4 can be performed without hindrance.

Then, the delivery conveyor 71 transports the grafted seedlings 5 to an unillustrated acclimatized environment control step. The joined rootstock seedlings 3 and spikelet seedlings 4 survive in about two weeks thereafter. The seedling incubator 13 that has finished supplying all the seedlings except for the abnormal seedlings is sent to the front of the fuselage, collected by an appropriate device, subjected to washing and sterilization, and then reused. be able to.

After that, the transfer arm 34 having completed the bonding process
a and 34b rotate in the opposite directions and again face the seedling supply mechanisms 21 and 22, but the reflection plate 28b to be reflected toward the optical sensor 27b is, as described above, the transfer arms 34a and 34b.
b, the light sensor 27 to detect the passage of the seedling.
b has the advantage that it can be confirmed that the transfer arms 34a and 34b have returned to their home positions.

By the way, in addition to the above-described structure, the seedling raising devices 11 and 12 have a single seedling raising device 13 as shown in FIG.
Are arranged at predetermined intervals while being shifted toward one side in the longitudinal direction, and each seedling raising unit 13 is alternately arranged in the front-rear direction alternately. You may comprise so that it may do. In this case, since sufficient space can be secured on the left and right of each seedling, seedlings of varieties with relatively large cotyledons can be raised with a margin in a small area, and the growth of seedlings becomes uniform as a result of moderate dense planting,
In the step of sending the single seedling raising devices 13 one by one to the seedling supply device, there is an advantage that the cultivation soil 13b can be sheared with a small pushing force. Further, as shown in FIG. 5B, if the opening portions of the adjacent concave portions 15 are configured to be continuous with each other,
The cultivated soil 13b accommodated in each recess 15 is in contact with each other, and water is well circulated in the contact portion, and there is an advantage that the moisture content of the cultivated soil 13b of each recess 15 in the whole seedling incubator 11 can be averaged. In any of these cases, a single kind of seedling raising device 13 can be used, which is economical.

FIG. 6 shows another embodiment of the seedling supply mechanism.
It will be described according to. In this embodiment, the above-mentioned seedling incubators 11 and 12 are used.
Without using a plug tray, which is an existing seedling raising device, i.e., a seedling raising device 85 having a large number of recesses 85a, 85a,... To supply seedlings 3. That is, as shown in FIG. 6 (a), the holding plate 23 having slits at appropriate intervals for holding the seedling 3 in the vicinity of its cotyledon development base 3a is held by the arm 26 of the reciprocating supply cylinder 25. The cylinder 87 has a rod 87a which is integrally fixed to the tip of the
A claw 88 is projected from the tip of the rod 87a, and a tip shoulder 89 is provided at the base of the claw 88. Then, for example, at the timing when the seedling raising device 85 is sent forward from the rear of the paper by appropriate means and reaches the position shown in the drawing, the arm 87a of the cylinder 87 projects upward and pierces the root pot 13c with the claw 88, and the tip shoulder portion 89 It is lifted while holding this (FIG. 6 (b)). When the supply cylinder 25 is pushed out to insert the hypocotyl 3b of the seedling 3 into the slit of the holding plate 23 and lower the arm 87a, the cotyledon developing base 3a of the seedling 3 is securely held on the upper surface of the holding plate 23. (FIG. 6
(C)), the seedling 3 is supplied to the transfer arm 24a by the pushing operation of the supply cylinder 25. With this configuration,
There is an advantage that the seedlings can be supplied using the existing seedling raising device 85 as it is.

The seedling raising device 11 includes a grafting seedling production device,
The present invention can be applied to various devices for removing and supplying seedlings.

[0035]

The present invention configured as described above has the following effects.

According to the first aspect of the present invention, the holding means can be moved up and down by the elevating mechanism, and the seedling delivery mechanism is provided at a position where the holding means descends and stops. It can be transported to the next process, and labor saving can be realized.

According to the second aspect of the present invention, the spikelet seedling holding means includes:
Since a retreat mechanism is provided for retreating from the grafting position prior to the rootstock seedling holding means after the grafting, if the bonding by the bonding mechanism fails, the scion seedling can follow the retreating operation of the scion seedling grasping means. And it does not fall from the scion seedling holding means and remain. Thus, the scion seedling holding means can execute the operation of the next step without any trouble.

According to the third aspect of the present invention, a holder for holding the vicinity of the cotyledon development base on the lower surface of the cotyledon of the seedling, a root pot extruder for pushing out the root pot of the seedling forward, and a holder and a root pot extruder At the same time, the seedling placement process, which was conventionally manually arranged in the slit of the holding plate, can be greatly simplified, and the automatic continuous supply of seedlings can be performed. No unreasonable traction force is applied to the cotyledons and roots during removal, and there is no risk of damaging the rootstock seedlings.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an apparatus for producing a grafted seedling according to an embodiment of the present invention.

FIG. 2 is a front view showing an apparatus for producing a grafted seedling according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a main part of the clip holding mechanism.

FIG. 4 is a perspective view showing an embodiment of a seedling raising device, (a) is a perspective view thereof, and (b) is a perspective view showing a use state thereof.

FIGS. 5A and 5B are perspective views showing another embodiment of the seedling raising device.

FIGS. 6 (a), (b) and (c) are front views showing another embodiment of the seedling supply mechanism and its operation.

FIGS. 7A and 7B are front views showing the operation of the seedling supply mechanism.

[Explanation of symbols]

 Reference Signs List 3 rootstock seedling 4 seedling seedling 5 grafted seedling 11, 12 seedling raising device 15 recess 23 holding plate 24 root pot extruding plate 21 rootstock feeding mechanism 22 earwood feeding mechanism 31 rootstock feeding mechanism 32 earwood feeding mechanism 41 rootstock cutting Mechanism 42 Scion cutting mechanism 51 Clip clamping mechanism 62 Clip 71 Delivery conveyor

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01G 1/06

Claims (3)

(57) [Claims] 1. A rootstock transfer mechanism for holding a seedling to be a rootstock waiting at a predetermined position by a rootstock seedling holding means and transporting the seedling to a grafting position, and arranging the seedling at a predetermined height position. A scion transport mechanism that holds a seedling to be a scion to be transferred to a grafting position by grasping the seedling to be a scion and holding it at a predetermined height position, and a predetermined portion of each seedling conveyed by the two transfer mechanisms. A cutting mechanism for cutting each, and an adhesive mechanism for bonding both cut surfaces of the rootstock and spikes conveyed to the grafting position by the two conveying mechanisms, wherein the rootstock conveying mechanism includes rootstock seedling holding means. An apparatus for producing grafted seedlings, comprising a raising and lowering mechanism for raising and lowering, and a seedling delivery mechanism at a position where the gripping means moves down and stops. 2. The scion transport mechanism includes a scion seedling grasping means for grasping the scion seedlings, and a retreat mechanism for retracting from the grafting position prior to the rootstock seedling grasping means after the grafting is completed. The grafted seedling production apparatus according to claim 1, wherein 3. A rootstock supply mechanism for supplying seedlings serving as rootstocks to a predetermined position of the rootstock transport mechanism, comprising: a holder for suspending a vicinity of a base of cotyledon development on a lower surface of cotyledons of the seedlings; 3. The grafting seedling production apparatus according to claim 1, further comprising: a root pot extruder that pushes the roots forward, and a unit that simultaneously drives the holding tool and the root pot extruder.