JP2787068B2 - Transplant machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter provided with a vertical feeding means for vertically feeding a seedling tray having a plurality of seedling accommodating portions to a seedling extracting side.

[0002]

2. Description of the Related Art As described in Japanese Utility Model Laid-Open Publication No. 2-67713, a transplanting machine has a driving flat pulley which is disposed at a predetermined interval in a longitudinal feeding direction of a seedling tray having a plurality of seedling receiving portions. A flat pulley, an endless belt hung between these driving and driven flat pulleys to receive the seedling tray, and an endless belt disposed on one side of the driving flat pulley and picked up by a seedling removal unit. A reversing roller for reversing and rotating the empty seedling tray; and an electric motor for driving the driving flat pulley when the seedling removal unit moves to the end of the lateral movement. The electric motor rotates the driving flat pulley. It is known that a seedling tray is fed vertically, and further, an empty seedling tray is pressed by the seedling tray which is fed vertically and turns around the reversing roller section.

[0003]

However, when the seedling tray is longitudinally fed by the friction transmission method using the endless belt as described above, slippage easily occurs between the endless belt and the seedling tray, and the seedling tray is securely connected. It is difficult to feed vertically,
There was a problem that the vertical feeding accuracy was poor, and the seedling removal part could not reliably remove the seedlings from the seedling tray.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and provides a forced transport member in an endless belt to forcibly feed a seedling tray vertically so that the seedling tray slides with respect to a support member. It is an object of the present invention to prevent the forced conveyance member from pushing up the seedling tray.

[0005]

The transplanter according to the present invention comprises:
In a transplanter provided with a vertical feeding means for vertically feeding a seedling tray having a plurality of seedling storage sections to a seedling take-out side , the vertical feeding means is disposed at a predetermined interval in a vertical feeding direction of the seedling tray. Toothed drive wheels and toothed driven wheels, and these toothed drive wheels
And an endless belt which is Kake設between the toothed driven wheel, provided on the endless belt, and a plurality of conveyance members caught thereto from entering between the seedling accommodating portion of the seedling tray, the endless belt wherein the relative movement range of and intersect at a predetermined angle and a tray supply unit to supply <br/> feeding the seedling tray to the transfer zone.

[0006] In the present invention, the seedling tray, good longitudinal feed from forcibly can be longitudinal feed by conveyance member provided on the endless belt circulating movement, the seedling tray without causing slippage can do. Further, the order to transfer zone of the endless belt is provided with a tray supply section for supplying the seedling tray by the intersection at a predetermined angle, the conveyance member that has moved with the circulating movement of the endless belt, the seedling tray This can be hooked to penetrate between the gradual seedling accommodating portion from the bottom, it can be effectively prevented upthrust due seedling tray conveyance member.

[0007] Further, a toothed drive wheel located on the seedling removal side and
One of the toothed driven wheels has a larger diameter than the other. Seedlings In this invention, the toothed drive wheel and the driven wheel toothed by a diameter difference commensurate with the seedling tray height, the conveyance member in the feed starting end side of the seedling tray from the bottom of the seedling tray The tray receiving part can be easily inclined to an appropriate inclination angle with respect to the endless belt because it can penetrate between the accommodating parts and can also penetrate to the opening end of the seedling tray at the feed end side. Can be. Further, the entire transplanter can be downsized.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments. FIG. 1 is a longitudinal sectional view of a vertical transport unit in the transplanter according to the present invention, FIG. 4 is a partially cutaway side view of the transplanter, and in FIG.
The front frame 1A, the transmission case 1B, and the rear frame 1C are integrally assembled, respectively, and the engine 2 is mounted on the upper side of the front frame 1A. And a pair of transmission cases 4, 4 extending rearward and downward, respectively, are provided on both side surfaces in the vehicle width direction of the transmission case 1B so as to be vertically swingable. 5 and the drive wheels 5, 5
The driving body 1 is driven by the rotational power transmitted from the transmission case 1B and the transmission cases 4 and 4 so that the traveling machine body 1 travels by itself.

In addition, between the lower part of the traveling machine body 1 and the front side of the drive wheel 5, an inter-strain detection switch for detecting the inter-spotted plant of the pot seedling by the transplanting device 3 while rolling on the upper surface of the ridge A. It supports a detection roller 6 (not shown), and intermittently controls each drive unit of the transplanting device 3 based on an inter-strain detection signal output from the detection roller 6.

Further, a pressure-reducing wheel 7 running along the upper surface of the ridge is supported at a lower portion in front of the front frame 1A via a supporting rod 1D, and the ridge A is provided on both sides of the pressure-reducing wheel 7. A pair of guide wheels 8, 8 running along the side surface are provided.

Further, the rear frame 1C of the traveling body 1
The transplanting device 3 supported on the side includes a vertical transport section 30 for sequentially transporting the seedling trays 10 in which a plurality of pot seedling receiving sections 10a are arrayed vertically and horizontally to a seedling removal side, and the vertical transport section 30.
And a transplanting part 50 having a transplanting nail 53 that receives a seedling from the seedling extracting part 40 and performs a planting operation by receiving the seedling from the seedling extracting part 40. The transplanting section 50 is supported on the mission case 1B side, and the seedling extracting section 40 and the vertical transport section 30 are supported on the rear frame 1C side.

In FIG. 4, reference numeral 9 denotes a steering handle mounted on the rear frame 1C so as to face rearward and upward.

As shown in FIG. 1, the vertical transport section 30 has a pair of side walls 31a opposed to each other at a predetermined interval.
And a connecting rod 31 connecting these side walls 31a, 31a.
b is provided with a tray receiving portion 32 for supporting and guiding the seedling tray 10 and a pair of opposed sprockets are provided between the front portions of the side walls 31a, 31a of the supporting member 31. Toothed drive wheel using
A driving shaft 34 having driving wheels 33, 33 is rotatably supported, and toothed driven wheels (hereinafter, referred to as driven wheels) 35, 3 are provided between a rear portion and a pair of opposed sprockets.
5 is supported by the driven shaft 36 so as to be freely driven to rotate, and endless belts 37, 37 each using a chain are hung around each of the drive wheels 33, 33 and the driven wheels 35, 35. the band 37, the conveying member (hereinafter forcing conveying hooked on seedlings accommodating portion 10a of the seedling tray 10
A large number of 38 are provided at predetermined pitch intervals, and the seedling tray 10 is forcibly longitudinally fed by the forced conveying member 38. Seedling removal unit 40
The drive wheels 33, 33 located on the side have a larger diameter than the driven wheels 35, 35.

The forcible conveying member 38 shown in FIG. 2 includes inner and outer link plates 37a, 37b of the endless bands 37, 37.
Using a connecting shaft having connecting portions 38a, 38a at both ends for connecting the fork and rollers 37c, and forcing the forcible conveying member 38 into a pot seedling receiving portion 10 arranged in the longitudinal direction of the seedling tray 10.
The shaft diameter is such that it can be inserted into the concave groove 10b between the a and 10a so that it can be hooked on the side wall of the pot seedling accommodating portion 10a.
By using the connecting pins a and 38a, the connecting pins of the endless bands 37 and 37 can also be used, thereby simplifying the structure and facilitating the mounting.

In addition to the connecting shaft serving also as the connecting pin as described above, for example, the link plate 37a in the both endless belts 37, 37 is used as the forcible conveying member 38.
Alternatively, of course, a shaft rod or the like may be integrally provided between the opposing surfaces of the 37b by a suitable fixing means.

As a driving means of the driving shaft 34 having the driving wheels 33, 33, a motor M is mainly used. When it returns, it is detected by limit switches L1 and L2 which detect it, and the motor M is intermittently driven by the detection signal from the limit switch L1 or L2 to move the seedling tray 10 vertically by one.
It is made like vertical feed for each pitch.

As shown in FIG. 1, the support member 31 has a plate-shaped tray support for supporting and guiding the seedling tray 10 between the driving wheel 33 and the driven wheel 35 on the transport side of the seedling tray 10. while mounting the parts 32, the collecting side of the seedling tray 10 in the support member 31, the side wall 31a, an empty ported through the receptacle 71, 72 is supported on 31a downward <br/> seedling tray 10 the tray recovery portion 39 for guiding me take-up provided, the tray receiving surface 32a of the tray receiving part 32, the distance between the minute driving side in the the feed starting end 32b endless belt 37, a feed terminal portion 32c the inclined becomes smaller as a predetermined angle α than the distance between the drive side min, the movement locus of the endless belt 37 in the start end portion 32b side feed seedling tray 10 to so as to penetrate at a predetermined angle α I have.

The tray collecting surface 39 of the tray collecting section 39
a is the distance between the minute driven side in the a collecting terminal portion 39c endless belt 37, predetermined to be greater than the spacing between the minute the driven <br/> unit and the recovery beginning 39b inclined at an angle beta, the empty seedling tray 10, so that away from the driven portion recovered starting end 39b toward the collection direction to downward at a predetermined angle beta.

In the embodiment shown in FIG. 1, a large number of wires are used as the tray collecting portion 39, and these wires are attached to the lower part of the side walls 31a, 31a through the receiving members 71, 72 of the support member 31. It is formed by supporting in parallel at a predetermined interval in the width direction.

[0020] Also, the outer side of the driven wheel 35 of the support member 31, tray for receiving the seedling tray 10, as shown in FIG. 1
A receiving surface 73a is provided, and the endless belts 37, 37 are moved.
The seedling tray 10 is moved at a predetermined angle to the area.
Tray supply unit 73 is attached for supplying the dynamic range.

The vertical transport section 30 having the support member 31, ie, the seedling tray 10, is configured to intermittently move in the horizontal direction at every horizontal pitch of the pot seedling storage section 10a by the horizontal feeding means. Have been.

On the other hand, the seedling extracting section 40 is provided with a seedling extracting nail 41.
And a seedling holding mechanism 42 for taking out and holding a pot seedling from the pot seedling storage section 10a of the seedling tray 10 by the seedling removal claw 41 at the transfer end portion of the vertical transfer section 30; Reciprocating linearly,
And a claw operating mechanism 4 that swings downward during the seedling release process.
The pots are taken out of the seedling tray 10 by the seedling take-out claw 41 by the interlocking operation of these mechanisms 42 and 43, and the seedling take-out claw 4 is taken between the taking-out step and the releasing step.
In step 1, the seedlings are held, and the seedlings are released from the seedling extraction claw 41 at the seedling release position avoiding the vertical transport section 30 and supplied to the transplanting nails 53 of the transplanting section 50 which stands by below.

The transplanting section 50 is provided with a planting transmission case 51 attached to the rear side of the transmission case 1B.
And an openable / closable transplanting claw 53 supported in the planting transmission case 51 via a planting arm 52 interlocking with its internal mechanism so as to be capable of planting vertically.
2, the transplanting nail 53 is planted with a predetermined vertical movement locus over a range between the receiving position of the potted seedling released from the seedling extracting nail 41 and the transplanting position to the ridge A, and the seedling extracting nail 41 is moved. Release the pot seedlings, the pot seedlings are received at the ascending position in which the transplant nails 53 are closed, that is, the receiving position, and after receiving the pot seedlings, the transplant nails 5 are received.
3 is moved downward to the ridge A side, and the transplanting nail 53 is opened at this lowered position, so that the pot seedlings held therein are transplanted to the ridge A.

Next, the operation of the transplanter according to the present invention will be described. When the support member 31 moves forward and backward to the lateral feed end position in any of the left and right directions by the horizontal feed means, the seedling tray 10 supported by the tray receiving portion 32 of the support member 31 is vertically fed by one pitch. In this case, the drive wheels 33 and 3 are intermittently driven through the drive shaft 34 by the intermittent drive of the motor M.
When the endless belts 37, 37 are moved by the drive rotation of the drive wheels 33, the forced transport member 38 hooked on the side wall of the pot seedling storage portion 10a of the seedling tray 10.
Move integrally, and the seedling tray 1
0 can be forcibly conveyed, whereby the sliding between the forcible conveying member 38 and the seedling tray 10 does not occur, and the seedling tray 10 can be reliably fed vertically. .

Further, the drive side fraction in the endless belt 37
As the distance between the feed starting end 32b of the tray receiving surfaces 32a before SL drive side min is smaller than the distance between the feeding terminal portion 32c the drive side minutes in the tray receiving part 32 against the At a predetermined angle α, the forcible conveying member 38 is moved from the feed start end 32b to the feed end 32
c, the seedling tray 10 moves obliquely from the bottom to the upper side with respect to the bottom surface of the seedling tray 10, whereby the forced transport member 38 pushes the bottom of the seedling tray 10 outward. Seedling tray 10 is placed in tray receiving section 32
Without being detached from the pot, the forcible conveying member 38 is inserted into the concave groove 1 between the pot seedling storage portions 10a
0b can be smoothly entered.

Further, when the empty seedling tray 10 which has finished the implant is moved to the tray recovery unit 39, the tray recovery surface 39a of the tray recovery unit 39, the driven side component in the endless belt 37 and the recovery end portion 39c spacing between the recovery beginning 3
Since it inclined at a predetermined angle β to be greater than the spacing between 9b and minutes the driven side, when the seedling tray 10 is moved toward the recovery direction,該苗tray 10 collected beginning 39b Side of the seedling tray 10 from the forced conveying member 38 due to its own weight. As a result, the detachment of the seedling tray 10 from the forced conveying member 38 can be performed smoothly.
Early withdrawal of the empty seedling tray 10 is also can be possible.

In the embodiment shown in FIG. 4, the pot is reciprocated vertically in front of the transplanting claw 53 in conjunction with the internal mechanism of the planting transmission case 51. Immediately before transplanting the seedlings, a multi-cutter 54 is provided for drilling a transplanting hole in the multi-film F laid on the ridge A, and the transplanting nail 53 is transplanted to the rear side of the transplanting nail 53. A cultivation ring 55 for cultivating the potted seedlings is provided.

[0028]

According to transplantation machine according to the present invention, the seedling tray, because forcing can be longitudinal feed by conveyance member provided on the endless belt, good seedling tray without causing slippage It can be longitudinal feed, further wherein for relative movement range of the endless belt is provided with a tray supply section for supplying the seedling tray by the intersection at a predetermined angle, feeding transportable that has moved with the circulating movement of the endless belt member, penetrates gradually between seedling accommodating portion from the bottom side of the seedling tray can be hooked thereto, can be effectively prevented upthrust due seedling tray conveyance member.

Further, a toothed drive wheel located on the seedling removal side and
One of the toothed driven wheel, since a larger diameter than the other, the feed starting end side of the seedling tray can be penetrate between seedling accommodating portion conveyance member from the bottom of the seedling tray, in yet feeding end side Can penetrate into the opening end of the seedling tray, so that the tray receiving portion can be easily inclined at an appropriate inclination angle with respect to the endless band, and the entire transplanter can be downsized.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a vertical transport section of a transplanter according to the present invention.

FIG. 2 is an enlarged sectional view of a forced conveying member of the transplanter according to the present invention.

FIG. 3 is a schematic view of a transplantation device in the transplanter according to the present invention.

FIG. 4 is a partially cutaway side view of the entire transplanter according to the present invention.

[Explanation of symbols]

 Reference Signs List 10 seedling tray 10a pot seedling storage section 31 support member 32 tray receiving section 33 drive wheel 35 driven wheel 37 endless belt 38 forced transport member

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-67713 (JP, U) JP-B 55-40202 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01C 11/02

Claims (2)

(57) [Claims] 1. A transplanter comprising a vertical feed means for vertically feeding the seedling tray seedlings extraction side having a plurality of seedling accommodating portion, the longitudinal feeding means, a predetermined interval in the longitudinal feed direction of the seedling tray Toothed drive wheel and toothed driven wheel, an endless band provided between the toothed drive wheel and toothed driven wheel, and a seedling storage portion of the seedling tray provided in the endless band. and a plurality of conveyance members caught thereto entered between, said that it comprises a tray supply section for supplying the seedling tray by the intersection at a predetermined angle with respect to the moving range of the endless belt to the transfer zone The transplanter characterized by the above. 2. The transplanter according to claim 1, wherein one of the toothed drive wheel and the toothed driven wheel located on the seedling removal side has a larger diameter than the other.