JP2002272211A - Transplanting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve accuracy of operations for delivering and transplanting pot seedlings in a transplanter. SOLUTION: A planting part of a transplanter has such a construction that pot seedlings 5 conveyed by a seedling transport conveyor placed in the lateral direction to the moving direction of a machine body are succeeded to a planting tine 50 installed on a rotary planting mechanism 21, and the pot seedlings are planted by the planting tine 50. The planting tine 50 comprises a pair of planting tine shafts 77, 77 and holding members 50a, 50a having a roughly L-shaped cross-sectional view placed on the heads of the planting tine shafts. The planting tine is constructed in such a manner that the holding members 50a, 50a are closed and opened by rotating the planting tine shafts 77, 77 in laterally opposite directions each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for transplanting seedlings such as vegetables to a field, and more particularly to a planting section having a function of planting seedlings in a field. Related to the configuration.

[0002]

2. Description of the Related Art Conventionally, a seedling mounting table on which a tray is mounted, a seedling collecting mechanism for extracting seedlings from each pot of the tray on the seedling mounting table, and a seedling extracted by the seedling collecting mechanism are transferred to a field. 2. Description of the Related Art A transplanter that forms a planting part is known from a seedling planting mechanism having a planting nail for planting.

[0003]

In such a transplanter, in order to realize high-speed and accurate planting, it is required to improve the accuracy of the transfer of the seedlings and the planting operation performed by each mechanism.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, as in claim 1, a configuration is provided in which a seedling transport conveyor is provided in the left-right direction with respect to the machine body traveling direction, and the pot seedlings are transported from the seedling tray to the seedling transport conveyor, and planted by the planting claws provided in the rotary planting mechanism. The implanting claw is configured as described above, wherein the implanting claw includes two implanting claw shafts and a substantially “L” -shaped cross-sectional holding member provided at the tip of the implanting claw shaft. , And the holding member is opened and closed by rotating the planting claw shaft in the left and right opposite directions.

According to a second aspect of the present invention, a seedling transfer conveyor is provided in the lateral direction with respect to the machine body traveling direction, a pot seedling is transferred from a seedling tray to the seedling transfer conveyor, and is provided in a rotary planting mechanism. The implanting claw is configured to be implanted according to the above configuration, wherein the implanting claw is configured as an opener having a U-shape in a planar cross section, and a front side of the opener that swings in front of the opener. An opening device is formed, and a pot seedling is guided to the ground and planted by the opening device and the front opening device.

According to a third aspect of the present invention, the pot seedlings conveyed by the seedling conveyer are inherited by planting claws by a seedling pushing mechanism.

According to a fourth aspect of the present invention, there is provided a seedling transfer conveyor provided in a lateral direction with respect to the machine body traveling direction, for transferring potted seedlings from a seedling tray to the seedling transfer conveyor, and being provided with a rotary planting mechanism. A seedling guide conveyor, which faces the transfer surface and has the same belt feed speed, is arranged outside the transfer surface of the seedling transfer conveyor. Then, the pot seedlings are guided to the transfer position to the planting claws by the transfer surface of the seedling transfer conveyor and the transfer surface of the seedling guide conveyor.

[0008]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a riding transplanter to which the planting section according to the present invention is applied, FIG. 2 is a side view showing an operation state of a seedling collecting mechanism, and FIG. 3 is a side view showing an operation state of a seedling loading mechanism. 4 is a side view showing an embodiment of the drive configuration of the seedling collecting mechanism, FIG. 5 is a side view of the seedling transport conveyor as viewed from an arrow C in FIG. 3, and FIG.
7 is a view showing another embodiment, FIG. 8 is a side view of the rotary planting mechanism, FIG. 9 is a plan sectional view of the rotary planting mechanism,
FIG. 10 is a side view of a rotary planting mechanism in which a hole is provided in a planting claw, and FIG. 11 is a side view of a rotary planting mechanism similarly constituted by a hole and a guide.

FIG. 1 is a perspective view showing a planting section 15 according to the present invention, which is provided at a rear portion of a traveling section 1 of a riding transplanter via a lifting link mechanism 27.
Is shown in the embodiment. The traveling unit 1 includes a body frame 2 having a hood 9 covering an engine on an upper surface, a steering handle 4 and a steering seat 8;
And a pair of left and right rear wheels 17 supporting a rear portion of the vehicle body frame 2. On both sides of the bonnet 9, spare seedling platforms 30 are provided, on which the seedling tray before transplanting pot seedlings or the empty seedling tray after transplanting is placed. I can do it.

The planting mission case 20 of the planting section 15 is connected to a lifting link mechanism 27 so as to be able to move up and down with respect to the traveling section 1. A seedling platform 11 for intermittently transporting the seedling tray downward is installed above the planting mission case 20, and a seedling transport conveyor 14 is mounted diagonally below and behind the seedling platform 11. It is installed so as to make a right angle (left-right direction) with the traveling direction. Further, a rotary planting mechanism 21 provided in a transmission case 55 extending rearward from the planting mission case 20 is installed diagonally below and behind the planting conveyor 12. In the above, the embodiment in which the planting section 15 according to the present invention is applied to a riding type working machine has been described. However, the present invention is not limited to this embodiment, and may be applied to a walking type transplanting machine. Shall be.

Next, details of the planting section 15 will be described below. As shown in FIGS. 2 to 4, seedling trays 6 made of a flexible synthetic resin or the like and containing pot seedlings 5, 5,... In a grid pattern are intermittently transferred downward at pitch intervals of the pot. It is configured to be. The pot seedlings 5, 5... In one row on the left and right sides in the machine traveling direction are simultaneously pushed out of the seedling tray 6 by the seedling loading mechanism 12, loaded into the seedling collecting mechanism 13, and placed on the seedling transport conveyor 14. Then, as shown in FIG.
And are planted.

As shown in FIG. 2, the seedling loading mechanism 12 is provided with a roller 24 rotatably disposed at one end of a rotating arm 22b and brought into contact with a cam 25. The other end of the rotating arm 22b is connected to a rotating shaft 23. , The rotation arm 22b swings about the rotation shaft 23 as a rotation center. In conjunction with the swing, the rotating shaft 23
The pivot arm 22a, which fixes one end of the pivot arm 22a, swings, and the same number of push pins 7, 5,... Are pivotally supported, and the tips of the push-out pins 7, 7 are arranged at an angle facing the lower surface of the seedling tray 6 in a substantially vertical direction. It is designed to contact the bottom vertically. The push shaft 16 is configured to be guided by guides 28 in the vicinity of the left and right ends (in the left and right directions with respect to the traveling direction), and the swinging motion by the rotating arm 22a is substantially linear. The other end of a tension spring 29 having one end fixed thereto is rotatably supported at both ends of the pushing shaft 16.
At the angle where does not act, push pins 7.7 ...
Are installed in the guide 28. In this state, the rotation of the rotation arm 22b is restricted by the stopper 31.

With the construction described above, the rotation of the cam 25 causes the pivot arms 22a and 22b to swing and
7 are moved up and down to strike the bottom (root pot) of the pot seedlings 5.5, so that the pot seedlings 5.5
Are pushed out of the seedling tray 6.

One row of pot seedlings extruded at once 5.
.. Are loaded into the seedling holder 33 of the seedling collecting mechanism 13. In this embodiment, one loading portion of the seedling holder 33 has a substantially “C” shape in plan view, and has the same number of through grooves as the number of rows of the pot seedlings 5, 5. It is configured to be loaded in the hole. Also, the “C” -shaped opening side of the through groove is
Seedling tray 6 side. This is a pot seedling 5.5
This is to prevent the leaves from interfering with the leaves of the pot seedlings 5,... Located on the seedling tray 6 when picking up. The seedling holder 33 is disposed so as to straddle the entire width of the seedling tray 6 from above, and swings between the seedling tray 6 and the seedling transport conveyor 14 by a parallel link mechanism while maintaining its posture. .

FIG. 4 shows an embodiment of the drive configuration of the seedling collecting mechanism 13. In this embodiment, the gear 34 is rotated by driving from a driving means (not shown).
A crank arm 35 is fixed to a rotation shaft of the gear 34, and is connected to a distal end of the crank arm 35 via a connecting arm 37 to a parallel link arm 36 a. Thus, by rotating the crank arm 35, the parallel link arm 3
6a and 36b can be reciprocally rocked.

The swinging movement of the seedling holder 33 is performed in conjunction with the intermittent transfer of the seedling tray 6, the movement of the push-out pins 7,..., And the state of transfer of the seedlings on the seedling transfer conveyor 14. I have to. That is, at the timing after the seedling tray 6 has been transported for one pitch for one pitch, the seedling holder 33 is
・ We go to pick up 5 ... When the seedling holder 33 reaches the position of the dead center on the side of the seedling tray 6 in the swinging motion, the pushing pins 7 are pushed out, and the seedling holder 3 is pushed out.
3 are loaded with pot seedlings 5, 5,...

Subsequently, as shown in FIG.
The seedling holder 33 loaded with 5...
Swing to the 4 side. At this time, the pot seedlings 5.5 are not present on the transport surface of the seedling transport conveyor 14 (that is, the pot seedlings 5.5 can be placed).

The pot seedlings 5, 5,... Loaded in the seedling holder 33 are opened to the seedling transporting conveyor 14 at a position where the seedling holder 33 swings, and becomes a dead center on the side of the seedling transporting conveyor 14. A plurality of open projections 38 projecting from a bracket 52 extending from the transmission case 20;
.. Are provided, and the open projections 38 are inserted into the through grooves of the seedling holder 33. When the seedling holder 33 passes through the open projections 38, 38,..., The roots of the pot seedlings 5, 5,. .. Are transferred to the seedling transport conveyor 14.

As shown in FIG. 5, the pot seedlings 5.5 on the seedling conveyor 14 (pot seedlings 5.5 in FIG. 5 represent root pots) are: The seedling transport conveyor 14 transports the seedlings leftward on the paper. At the left end of the seedling transport conveyor 14, a planting claw 5 described later is provided.
A seedling removing lever 41 that swings up and down in conjunction with the 0 rotational movement is configured. As shown in FIG. 2, the oscillating motion is constituted by a rotational motion of the cam 42 and a tension spring 43 having one end fixed thereto. Here, the rotation cycle of the cam 42 is set so as to be in timing with the rotary mechanism to which the planting claws 50 are attached. That is, when each of the planting claws 50 (two in this embodiment) receives the pot seedlings 5, 5,..., The setting is such that the seedling removal lever 41 swings downward most.

The seedling removing lever 41 constructed as described above
However, when the planting claws 50 reach the receiving position, the pot seedlings 5, 5,... In this way, the seedling removal lever 41 controls the timing of the transfer of the pot seedlings 5, 5,... To the planting claws 50, so that the transfer to the planting claws 50 that rotates at high speed is reliably performed. .

As shown in FIG. 5, a shutter 26 is provided at the left end of the seedling conveyor 14 to open and close about a rotating shaft 45, and a guide is provided on the inner side surface (side of the seedling conveyor 14) of the shutter 26. A plate 44 is provided. The pot seedlings 5,... Pushed downward by the seedling removing lever 41 are the shutter 26 and the guide plate 44.
And falls vertically, and is always inherited at a fixed angle (vertical) with respect to the planting claws 50. Note that the shutter 26 is regulated in the closing direction by a torsion coil spring 49 provided on the rotating shaft 45. When the seedling removing lever 41 swings, the shutter 26 opens and closes, and when the planting claw 50 is not located below, the shutter 26 is closed. Closed so that the pot seedling 5 does not fall.

Here, the planting claws 5 of the pot seedlings 5, 5...
A description will be given of another embodiment of the mechanism for performing inheritance for 0. In this embodiment, the seedling transport conveyor 14 is used.
A seedling guide conveyor 46 having a transfer surface facing the transfer surface is arranged outside the transfer surface of the seedlings, and the transfer surface of the seedling transfer conveyor 14 and the transfer surface of the seedling guide conveyor make the seedlings 5. ······························································································

In the specific example shown in FIG. 6, the seedling guide conveyor 46 is formed by winding a conveyor belt 47 in a substantially "C" shape in a side view (a side view with respect to the transfer surface). Are arranged so that the opening side of the is directed to the end of the seedling transport conveyor 14. .. Are guided and conveyed such that the pot seedlings 5, 5... Are sandwiched between the conveying surface of the opening of the conveying belt 47 and the conveying surface of the seedling conveying conveyor 14. Direction. Here, the feed speed of the transport belt 47 and the feed speed of the belt of the seedling transport conveyor 14 are set to be the same. The friction between them prevents the root mortar from collapsing. Then, the pot seedlings 5.5 guided from the upper transport surface of the seedling transport conveyor 14 to the lower transport surface are provided.
Fall from the lowest point of the seedling guide conveyor 46 and are held by the shutters 48. The shutter 48.4
8, the positional relationship of the pot seedlings 50 in the left-right direction with respect to the planting nails 50 is adjusted by the shutters 48.4.
8 is inherited by the planting claws 50. With the above configuration, the transfer to the planting claw 50 is performed accurately without damaging the root mortar.

As shown in FIG. 7, the belt of the seedling transport conveyor 14 may be configured to form an inverted triangle in side view, and the seedling guide conveyor 46 may be configured to face the inclined surface of the inverted triangle. Good.

In the embodiment shown in FIGS. 5 to 7, one seedling transport conveyor 14 and one planting claw 5 are provided.
0 is illustrated, and the embodiment in which single-row planting is implemented has been described. Of course, without limiting to such single-row planting, multiple-row planting can also be implemented if a plurality of seedling transport conveyors 14 and planting claws 50 are provided in the left-right direction with respect to the machine body traveling direction. is there.

Next, the rotary planting mechanism 21 will be described. As shown in FIG. 8 and FIG.
Reference numeral 1 denotes a support 58 (shown in FIG. 9) provided at an end of a transmission case 55 extending rearward from the transmission case 20 (shown in FIG. 1). In the transmission case 55, a planting section drive shaft (not shown) is provided from the transmission case 20, and a rotational drive of a planting arm shaft 56 (shown in FIG. 9) is led out.

The planting arm shaft 56 extends outwardly through a sun gear 59 fixed to a support 58 on the conductive case 55 side, and a rotating case 57 is fixed to the shaft end side. Has been established. An intermediate gear 61 is provided in the rotating case 57.
An eccentric gear 62 is provided, and the intermediate gear 61 meshes with the sun gear 59. Thus, the planting arm shaft 56
The eccentric gear 62 is rotated via the sun gear 59 and the intermediate gear 61 in accordance with the rotation of the rotating case 57 caused by the rotation of.

The rotation of the eccentric gear 62 is transmitted to the planting claw case 65 via the sleeve 64. In addition, the planting claw case 65 is configured so that the shaft end is opposite to the planting claw case 6 of the rotating case 57.
The bearing 69 is fixed to the planting cam shaft 66 fixed to the fifth side.
Connected through. In the planting cam shaft 66,
A cam 68 is fixed to the shaft end on the side of the planting claw case 65. The cam 68 comes into contact with a side surface of a rotating arm 71 pivotally supported by a rotating shaft 67 protruding inside the planting claw case 65, and swings the rotating arm 71. That is, the planting camshaft 6
6 with respect to the sun gear 59, the cam 68
Is rotated once without rotating, and one swinging movement of the rotating arm 71 is performed according to one revolution of the cam 68.

A driven arm 72 is connected to the rotating arm 71 via a connecting shaft 73. The driven arm 72 swings about a rotation shaft 75 supported in the planting claw case 65 via a collar.

The rotating shaft 75 is taken out from a planting claw case 65 to a planting shaft case 76 which is formed so as to protrude therefrom, and two worm wheels 78 are fixedly provided at its shaft end. . Further, the planting shaft case 76 has two planting claw shafts 77 having a worm gear machined at one shaft end.
The worm gear is configured so as to mesh with the worm wheels 78.
The processing of the worm gear is made to have a reverse screw relationship with each other, and the worm wheels 78 (78)
By the rotation of 5), the planting claw shafts 77 are configured to rotate in opposite directions to each other.

At the tip end side of the planting claw shafts 77 (the side opposite to the planting shaft case 76), holding members 50a, 50a each having a substantially "L" shape in plan view are concavely formed by combining the two. Thus, the planting claws 50 are formed, and are arranged so that the openings thereof face each other.

With the structure described above, while the planting claw case 65 makes one rotation, the swinging motion of the rotating arm 71 is performed once as described above, and the swinging motion is Output by the rotation of the planting claw shaft 77, 77 by the worm gear,
A holding member 50a located at the tip of the planted claw shaft 77
・ 50a opens and closes.

Opening and closing of the holding members 50a, 50a can be performed in conjunction with the inheritance of the pot seedlings 5, 5... And planting. That is, at the transfer position A shown in FIG. 8, the pot seedlings 5, 5,... Are held so as to be closed from the open state. That's why.

As shown by arrow D in FIG. 9, when the holding members 50a are closed, the holding members 50a are closed until the opening side is narrowed, so that the root mortar can be firmly held. On the other hand, the holding members 50a
In the opened state, the holding members 50a, 50a have a substantially "L" -shaped configuration in cross section, so that the planting claw shafts 77, 7 are provided.
Since the side 7 is always closed, it does not fall off when the pot seedlings 5, 5,... Are inherited.

Further, as shown in FIG.
Is provided until the planting position B is reached, and the guide 79 closes the opening side of the holding member 50a when the holding members 50a are closed.
.5 do not fall from the holding members 50a.

Here, another embodiment of the configuration of the rotary planting mechanism 21 will be described. In the rotary planting mechanism 81 shown in FIG. 10, a perforator 82 that is open at one side and has a substantially “U” shape in plan cross section is provided at the tip of a planting claw case 89. In front of the hole 82, a front hole 83 having the same shape as the hole 82 is arranged on one side of a four-bar linkage 86 extending from the transmission case 55. The four-bar link mechanism 86 is configured to swing in a direction opposite to the rotation of the hole punch 82 by a tension spring 85.

With the above arrangement, the hole opening device 82 reaches the transfer position A, and after the pot seedlings 5, 5,... It comes into contact with the opening side of the hole punch 83. The front opening device 83 is
By the force received from the hole punch 82, the rocker swings while maintaining the parallel posture. Then, the opening 82 and the front opening 83 are used to make one container, and the pot seedlings 5.5
... to the ground. As described above, the two hole punches are combined to form one vessel, so that the pot seedling 5
.. Can be accurately guided and planted to the planting position B without falling off from the hole punch 82 (front hole punch 83).

After the front punch 83 swings to the bottom dead center, the punch 82 moves rearward due to the rotational movement, so that the two punches come into contact with each other. And the front side punch 8
3 swings again to the top dead center by the tension spring 85 (swings until the four-bar link mechanism 86 comes into contact with the stopper 91), and prepares for the next planting operation (rotation of the aperturer 82).

A rotary planting mechanism 81 shown in FIG. 11 has an opening 82 which is open at one side and has a substantially “U” shape in plan cross section.
At the tip of the planting claw case 89. In addition, the size is such that the outer side surface of the hole punch 82 can be inserted,
A guide 8 which is open on one side and has a substantially “U” shape in plan cross section.
7 are arranged.

When the hole opening device 82 reaches the transfer position A, the pot seedlings 5, 5,...
・ Inherit the inheritance. Then, the hole opening device 82 holding the pot seedlings 5, 5...
.. Are guided to the planting position B through the inside of the container 7. In this way, since the opening side of the opening device 82 is closed by the guide 87 from the transfer position A to the transfer position B, the pot seedlings 5, 5. Are guided to the hole punch 82 by the guide 87. In other words, the pot seedlings 5, 5... Are accurately guided to the planting position B without falling off from the opening device 82.

[0041]

Since the present invention is constructed as described above, the following effects can be obtained. That is, as in claim 1, a seedling transport conveyor is provided in the left-right direction with respect to the machine body traveling direction, the pot seedlings are transported from the seedling tray to the seedling transport conveyor, and are planted by the planting claws provided in the rotary planting mechanism. It is a configuration of the implanting portion of the transplanting machine, wherein the implanting claw is formed from two implanting claw shafts and a holding member having a substantially “L” -shaped cross-sectional view provided at a tip of the implanting claw shaft. Since the holding member is opened and closed by rotating the planting claw shaft in the left and right directions in the configuration, the planting can be accurately performed without dropping the pot seedling from the inheriting position to the planting. Done. In addition, since the holding member has a substantially “L” shape in a cross-sectional view, the pot seedlings do not fall off at the time of inheritance, and the inheritance does not fail.

According to a second aspect of the present invention, a seedling transport conveyor is provided in the lateral direction with respect to the machine body traveling direction, and the pot seedlings are transported from the seedling tray to the seedling transport conveyor, and are provided in a rotary planting mechanism. The implanting claw is configured to be implanted according to the above configuration, wherein the implanting claw is configured as an opener having a U-shape in a planar cross section, and a front side of the opener that swings in front of the opener. Since the hole seeder is composed and the pot seedling is guided to the ground and planted by the hole punch and the front hole punch, the two hole punches are combined to make one vessel,
It is possible to accurately guide the pot seedling to the planting position without the pot seedling falling off from the opening device (front opening device).

According to a third aspect of the present invention, the potted seedlings conveyed by the seedling conveyor are transferred to the planting claws by the seedling pushing mechanism. , The transfer to the planting claw that rotates at high speed can be reliably performed.

According to a fourth aspect of the present invention, a seedling transport conveyor is provided in the lateral direction with respect to the machine body traveling direction, and a pot seedling is transported from a seedling tray to the seedling transport conveyor, and is provided in a rotary planting mechanism. A seedling guide conveyor, which faces the transfer surface and has the same belt feed speed, is arranged outside the transfer surface of the seedling transfer conveyor. The pot seedlings are guided to the transfer position to the planting claws by the transfer surface of the seedling transfer conveyor and the transfer surface of the seedling guide conveyor. The seedlings can be accurately inherited without collapse.

[Brief description of the drawings]

FIG. 1 is a side view showing a riding transplanter to which an implant according to the present invention is applied.

FIG. 2 is a side view showing an operation state of a seedling collecting mechanism.

FIG. 3 is a side view showing an operation state of the seedling loading mechanism.

FIG. 4 is a side view showing an embodiment of a drive configuration of the seedling collecting mechanism.

FIG. 5 is a side view of the seedling conveying conveyor, which is viewed from an arrow C in FIG. 3;

FIG. 6 is a view showing arrangement of a seedling guide conveyor.

FIG. 7 is a view showing another embodiment.

FIG. 8 is a side view of the rotary planting mechanism.

FIG. 9 is a plan sectional view of the rotary planting mechanism.

FIG. 10 is a side view of a rotary planting mechanism in which a hole is formed in a planting claw.

FIG. 11 is a side view of a rotary planting mechanism similarly constituted by a hole punch and a guide.

[Explanation of symbols]

 5 Pot Seedling 21 Rotary Planting Mechanism 50 Planting Claw 50a Holding Member 77 Planting Claw Shaft

Claims (4)

[Claims] 1. A transplanting machine comprising a seedling transfer conveyor in a lateral direction with respect to a machine body traveling direction, a pot seedling transferred from a seedling tray to the seedling transfer conveyor, and planted by a planting claw provided in a rotary planting mechanism. In the configuration of the planting portion, the planting claw is composed of two planting claw shafts, and a holding member having a substantially “L” -shaped cross-sectional view provided at the tip of the planting claw shaft, A planting device having a configuration in which the holding member is opened and closed by rotating the planting claw shaft in left and right opposite directions. 2. A transplanting machine comprising a seedling transport conveyor in the lateral direction with respect to the machine body traveling direction, transporting pot seedlings from a seedling tray to the seedling transport conveyor, and planting the seedlings with planting claws provided in a rotary planting mechanism. In the configuration of the planting portion, the planting claw is configured as an opener having a U-shape in a plan sectional view, and a front opening device that swings in front of the opener is configured to open. A planting device that guides and seeds a pot seedling to the ground using a borer and a front openinger. 3. The planting apparatus according to claim 1, wherein the pot seedlings conveyed by the seedling conveying conveyor are transferred to the planting claws by a seedling pushing mechanism. 4. A transplanting machine comprising a seedling transport conveyor in the left-right direction with respect to the machine body traveling direction, transporting pot seedlings from a seedling tray to the seedling transport conveyor, and planting the seedlings with planting claws provided in a rotary planting mechanism. A configuration of a planting unit, wherein a seedling guide conveyor facing the transport surface and having the same belt feeding speed is disposed outside a transport surface of the seedling transport conveyor, and a transport surface of the seedling transport conveyor. And a transfer surface of the seedling guide conveyor, the planting device for guiding the potted seedling to the transfer position to the planting claw.