JPH09215411A - Transplanting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to prevent a seedling tray from slipping on a support member, to forcibly invert and rotate an empty seedling tray, and to smoothly collect the empty seedling tray. SOLUTION: The seedling tray and empty seedling tray are forcibly sent by providing an endless belt 37, which is extended between driving and driven wheels 33 and 35 and moves cyclically, with plural forcible conveyance members 38 which enter into between pot seedling storage parts 10a of the seedling tray 10 and are caught. Further, a tray collection part 39 is slanted so that the interval between a collection end terminal part and the endless belt 37 is larger than the interval between a collection start terminal part and the endless belt 37, thereby effectively separating the empty seedling tray from the forcible conveyance members 38.

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 take-out side.

[0002]

2. Description of the Related Art As described in Japanese Utility Model Laid-Open No. 2-67713, a transplanting machine is a drive flat pulley arranged at a predetermined interval in a vertical feeding direction of a seedling tray having a plurality of seedling accommodating portions. And a driven flat pulley, an endless belt which is hung between the drive and driven flat pulleys to receive the seedling tray, and which is disposed on one side of the drive flat pulley and after seedlings are picked by the seedling take-out portion. A reversing roller for reversing the empty seedling tray and an electric motor for driving the drive flat pulley when the seedling take-out portion moves to the end of the lateral movement are provided, and the drive flat pulley is rotated by the electric motor. It is known that a seedling tray is vertically fed, and an empty seedling tray is pressed by the seedling tray that is vertically fed so that a reversing roller unit is turned around.

[0003]

However, when the seedling tray is longitudinally fed by the friction transmission method using the endless belt as described above, slipping is apt to occur between the endless belt and the seedling tray, so that the seedling tray is surely secured. It is difficult to feed vertically,
There is a problem in that the vertical feed accuracy is poor, and the seedling take-out section may not be able to reliably take out the seedlings from the seedling tray. Further, since the empty seedling tray is only pressed by following the movement of the seedling tray that is longitudinally fed by the endless belt, there is also a problem that it is difficult to satisfactorily perform reverse rotation in the reverse roller portion. there were.

The present invention has been made in view of the above-mentioned circumstances, and a forced conveying member is provided in the endless belt to forcibly feed the seedling tray in the longitudinal direction, so that the seedling tray is prevented from sliding on the supporting member. It is an object of the present invention to prevent the empty seedling tray from being forcibly turned around by the forced transport member and to smoothly separate the empty seedling tray from the forced transport member.

[0005]

The transplanter according to the present invention comprises:
In a transplanter having a plurality of seedling accommodating portions and a vertical feeding means for vertically feeding a seedling tray supported by a supporting member to a seedling take-out side, the vertical feeding means has a predetermined length in a vertical feeding direction of the seedling tray. A toothed drive wheel and a toothed driven wheel that are arranged at intervals, an endless belt that is hung between these drive and driven wheels, and a seedling accommodating portion of the seedling tray that is provided in the endless belt. A tray receiving portion that includes a plurality of forcible conveying members that enter and hook, and is arranged along the endless belt to guide and support the lower surface of the seedling tray, and a feeding end side of the tray receiving portion by the forcible conveying member. The tray collecting unit receives the seedling tray that is turned around at a lower position, and the tray collecting unit has a distance between the collecting end portion and the endless belt between the collecting start end portion and the endless belt. It is also characterized by being inclined so that it is larger than the interval. It is.

According to the present invention, since the seedling tray can be forcibly vertically fed by the forcible conveying member provided in the endless belt which circulates, the seedling tray can be satisfactorily vertically fed without causing slippage. In addition, the forced feeding member can forcibly reverse the empty seedling tray. Further, since the tray collecting portion is inclined so that the distance between the collecting end portion and the endless belt is larger than the distance between the collecting start end portion and the endless belt, the empty seedling tray is forcibly conveyed. Can be smoothly separated from.

Further, the present invention is characterized in that one of the drive wheel and the driven wheel located on the seedling take-out side has a larger diameter than the other. In this invention, the drive wheel and the driven wheel are
By setting the diameter difference corresponding to the height of the seedling tray, it is possible to smoothly separate the forcible transport member from catching on the empty seedling tray due to the weight of the empty seedling tray that has been reversed. Also,
The whole transplanter can be miniaturized, and the seedling tray can be smoothly turned over along a large radius of curvature.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be specifically described below with reference to the drawings showing the embodiments thereof. FIG. 1 is a vertical cross-sectional view of a vertical transfer section of a transplanter according to the present invention, and FIG. 4 is a partially cutaway side view of the transplanter. In FIG. 4, 1 is a traveling machine body, a front frame 1A and a mission. Case 1B and rear frame 1C
Are integrally assembled with each other, the engine 2 is mounted on the upper side of the front frame 1A, and the transplanting device 3 described later is supported on the rear frame 1C side, and the vehicle width of the mission case 1B. A pair of transmission cases 4 and 4 extending downward and rearward are provided on both side surfaces in the direction so as to be vertically swingable, and drive wheels 5 and 5 are supported on the free end sides thereof, respectively. , Is driven by the rotational power transmitted from the engine 2 via the transmission case 1B and the transmission cases 4 and 4, and the traveling machine body 1 is configured to be self-propelled.

Further, on the front side of the drive wheel 5 at the lower part of the traveling machine body 1, an inter-plant detection switch for detecting the inter-planting plant of the pot seedling by the transplanting device 3 while rolling on the upper surface of the ridge A. A detection roller 6 (not shown) is supported, and each drive section of the transplantation device 3 is intermittently controlled by an inter-strain detection signal output from the detection roller 6.

Further, a compression wheel 7 running along the upper surface of the ridge is supported on the lower front portion of the front frame 1A through a supporting rod 1D, and the ridges A are provided on both sides of the compression wheel 7. A pair of guide wheels 8, 8 running along the side surface is provided.

The rear frame 1C of the traveling machine body 1
The transplanting device 3 that is supported on the side is roughly divided into a vertical transport unit 30 that sequentially transports the seedling trays 10 in which a plurality of pot seedling storage units 10a are vertically and horizontally arranged, and a vertical transport unit 30.
A seedling taking-out portion 40 having a seedling taking-out nail 41 for taking out pot seedlings from the seedling tray 10 at a transporting end portion, and a transplanting portion 50 having a transplanting nail 53 for receiving the seedling from the seedling taking-out portion 40 and performing a planting operation. The transplant section 50 is supported on the mission case 1B side, and the seedling take-out section 40 and the vertical transfer section 30 are supported on the rear frame 1C side.

Reference numeral 9 in FIG. 4 denotes a steering handle mounted on the rear frame 1C facing rearward and upward.

As shown in FIG. 1, the vertical transfer section 30 has a pair of side walls 31a, 31a facing each other at a predetermined interval.
And a connecting rod 31 for connecting both side walls 31a, 31a
The frame-shaped support member 31 including b is provided with a tray receiving portion 32 that supports and guides the seedling tray 10, and a pair of opposed sprockets are provided between the front portions of the side walls 31a and 31a of the support member 31. A drive shaft 34 having toothed drive wheels (hereinafter referred to as drive wheels) 33 and 33 formed by using is rotatably supported in a drive manner, and a toothed driven wheel (a pair of opposed sprockets is provided between rear portions). Hereinafter referred to as driven wheels) 35,3
A driven shaft 36 having 5 is rotatably driven, and endless belts 37, 37 made of chains are respectively hung on the respective drive wheels 33, 33 and driven wheels 35, 35, while these endless belts 37, 37 are hung. Forced transport member 3 that hooks the belts 37, 37 on the pot seedling storage portion 10a of the seedling tray 10 and forcibly transports them.
A large number of 8 are provided at predetermined pitch intervals, and the seedling tray 10 is forcibly vertically fed by the forced transport member 38. Drive wheel 3 located on the seedling take-out section 40 side
3, 33 are formed to have a larger diameter than the driven wheels 35, 35.

The forced transport member 38 shown in FIG. 2 has inner and outer link plates 37a and 37b of both endless belts 37 and 37.
And a roller 37c are connected to each other by using connecting shafts having connecting portions 38a, 38a at both ends thereof, and the forced transport member 38 is arranged in the longitudinal direction of the seedling tray 10 in a pot seedling accommodating portion 10.
The shaft diameter that can be inserted into the recessed groove 10b between a and 10a is formed so as to be hooked on the side wall of the pot seedling accommodation portion 10a, and the connecting portions 38 at both ends of the forced transport member 38 are formed.
By using a and 38a, the connecting pins of the endless belts 37 and 37 can also be used, so that the structure can be simplified and the attachment thereof can be easily performed.

As the forced transport member 38, a connecting shaft which also serves as a connecting pin is used as described above, and, for example, the link plates 37a in the both endless belts 37, 37 are used.
Alternatively, it is needless to say that a shaft rod or the like may be integrally provided between the facing surfaces of 37b by an appropriate fixing means.

A motor M is mainly used as a drive means for the drive shaft 34 having the drive wheels 33, 33, and the support member 31 is moved forward or backward by the transverse feed means to any lateral feed end position. When returning, it is detected by limit switches L1 and L2 for detecting this, 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 1
It is made as if it is fed vertically at every pitch.

Further, as shown in FIG. 1, the support member 31 is a plate-shaped tray for guiding and supporting the lower surface of the seedling tray 10 between the driving wheel 33 and the driven wheel 35 on the conveying side of the seedling tray 10. The receiving portion 32 is attached along the driving side portion 37a, while the receiving side of the seedling tray 10 in the supporting member 31, that is, the tray conveying portion 38 by the forced conveying member 38.
The side wall 31 is provided on the collecting side, which is turned around at the feed end side of
a tray collecting portion 39 for picking up and guiding the empty seedling tray 10 that has been transplanted via the receiving bodies 71, 72 supported below a, 31a, and the tray receiving surface 3 of the tray receiving portion 32.
2a is inclined at a predetermined angle α so that the distance between the feed start end portion 32b and the drive side portion 37a of the endless belt 37 is smaller than the distance between the feed end portion 32c and the drive side portion 37a. , The seedling tray 10 has a feeding start end portion 32b
At a predetermined angle α with respect to the movement locus of the endless belt 37 on the side
I'm trying to break in.

The tray collecting surface 39 of the tray collecting section 39
a is inclined at a predetermined angle β so that the distance between the recovery end portion 39c and the driven side portion 37b of the endless belt 37 is larger than the distance between the recovery start end portion 39b and the driven side portion 37b. However, the empty seedling tray 10 has the driven side portion 3
It is configured to separate downward from the recovery start end portion 39b at a predetermined angle β with respect to 7b in the recovery direction.

In the embodiment shown in FIG. 1, a large number of wire rods are used as the tray collecting section 39, and each of these wire rods is placed under the side walls 31a, 31a via the receiving members 71, 72 and the supporting member 31. Are formed so as to be supported in parallel at predetermined intervals in the width direction.

Further, in FIG. 1, reference numeral 73 is an auxiliary tray receiving portion attached to the outer side of the driven wheel 35 of the support member 31.

Further, the vertical conveying section 30 having the supporting member 31, that is, the seedling tray 10 is constructed so as to be intermittently laterally moved laterally at every one pitch in the lateral direction of the pot seedling accommodating section 10a by the lateral feeding means. Has been done.

On the other hand, the seedling take-out section 40 has a seedling take-out nail 41.
And a seedling holding mechanism 42 for picking up and holding pot seedlings from the pot seedling accommodating portion 10a of the seedling tray 10 by the seedling taking-out claws 41 at the transporting end portion of the vertical feeding unit 30, and this holding mechanism 42 in the seedling taking-out process. Reciprocate linearly,
In addition, the claw operation mechanism 4 that swings downward in the seedling discharging process
3, the potting seedlings are taken out from the seedling tray 10 by the seedling taking-out nail 41 by the interlocking operation of the mechanisms 42 and 43, and the seedling taking-out nail 4 is provided between the taking-out step and the discharging step.
1, the pot seedlings are held, and the seedlings are ejected from the seedling take-out nail 41 at the seedling ejecting position avoiding the vertical conveying section 30 and supplied to the transplanting nails 53 of the transplanting section 50 waiting below.

Further, the transplanting section 50 is a planted transmission case 51 attached to the rear side of the mission case 1B.
And an openable / closable transplanting claw 53 which is supported on the planting transmission case 51 via a planting arm 52 interlocking with its internal mechanism so as to be plantable in the vertical direction.
The movement of 2 causes the transplanting claw 53 to be planted in a predetermined vertical movement locus over a range from the receiving position of the pot seedling discharged from the seedling taking-out claw 41 to the position of transplanting to the ridge A, and the seedling taking-out claw 41 is moved. When releasing the pot seedlings, the pot seedlings are received at the ascending position where the transplanted nail 53 is closed, that is, at the receiving position, and after the pot seedlings are received, the transplanted nails 5 are released.
3 is moved downward to the ridge A side, and the transplanting claw 53 is opened at this downward position so that the pot seedling held inside is transplanted to the ridge A.

Next, the operation of the transplanter according to the present invention will be described. When the support member 31 is moved forward or backward by the horizontal feed means to any of the horizontal feed end positions in the left and right directions, 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, 3 are driven by the intermittent drive of the motor M via the drive shaft 34.
3 is driven to rotate, and as the endless belts 37, 37 are moved by the drive rotation of the drive wheels 33, 33, the forced transfer member 38 that is caught on the side wall of the pot seedling accommodating portion 10a of the seedling tray 10.
Move integrally, and the seedling tray 1 is moved by the forced transfer member 38.
Since 0 can be forcibly transported, the seedling tray 10 can be reliably fed vertically without slippage between the forced transport member 38 and the seedling tray 10. .

Further, the feeding start end portion 3 of the tray receiving surface 32a of the tray receiving portion 32 with respect to the driving side portion 37a.
2b and the drive side portion 37a of the endless belt 37 are inclined at a predetermined angle α so as to be smaller than the distance between the feed end portion 32c and the drive side portion 37a. The transport member 38 has a feeding start end portion 32b.
Seedling tray 10 from the feeding side to the feeding end portion 32c side
On the other hand, the seedling tray 10 moves in an inclined shape from below to the upper side with respect to the bottom surface of the seedling tray 10, whereby the compulsory transport member 38 pushes the bottom portion of the seedling tray 10 outward, and the seedling tray 10 receives the tray receiving portion. The forced transport member 38 can smoothly enter the recessed groove 10b between the pot seedling accommodating portions 10a, 10a of the seedling tray 10 without being detached from the seedling tray 32.

When the transplanted empty seedling tray 10 is moved to the tray collecting section 39, the tray collecting surface 39a of the tray collecting section 39 has a collecting end portion 39c and a driven side portion 37b of the endless belt 37. When the seedling tray 10 moves in the collecting direction, since the interval between the seedling tray 10 and the driven side portion 37b is inclined at a predetermined angle β so as to be larger than the distance between the collecting start end portion 39b and the driven side portion 37b. , The seedling tray 10 is detached from the forced transport member 38 by its own weight on the side of the collection start end portion 39b, and as a result,
The seedling tray 10 can be smoothly detached from the forced transport member 38, and the empty seedling tray 10 can be removed early.

In the embodiment shown in FIG. 4, a pot seedling 53 is reciprocated in the vertical direction on the front side of the transplanting claw 53 in conjunction with the internal mechanism of the planting transmission case 51. Just before the transplantation, the multi-cutter 5 for making a transplant hole in the multi-film F laid on the ridge A
4 is provided, and a culture soil ring 55 for cultivating soil in pot seedlings transplanted by the transplantation nail 53 is provided on the rear side of the transplantation nail 53.

[0028]

According to the transplanting machine of the present invention, since the seedling tray can be forcibly vertically fed by the forced conveying member provided in the endless belt, the seedling tray can be satisfactorily formed without causing slippage. It is possible to carry out vertical feeding, and it is also possible to forcibly reverse and rotate the empty seedling tray by the forced conveying member. Moreover, since the tray collecting unit is inclined so that the distance between the collecting end portion and the endless belt is larger than the distance between the collecting start end portion and the endless belt, the empty seedling tray is forcibly conveyed by the member. Can be smoothly separated from.

Further, since one of the drive wheel and the driven wheel located on the seedling take-out side has a larger diameter than the other, by making the drive wheel and the driven wheel have a diameter difference corresponding to the height of the seedling tray, Due to the weight of the empty seedling tray that has been turned around, the catch of the forced transport member on the empty seedling tray can be separated smoothly, the entire transplanter can be made smaller, and the seedling tray can be moved along a large radius of curvature. And can be smoothly turned over.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional view of a vertical transport unit of a transplanter according to the present invention.

FIG. 2 is an enlarged cross-sectional view of a forced transfer member portion of the transplanter according to the present invention.

FIG. 3 is a schematic diagram of a transplantation device in a 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]

 10 Seedling Tray 10a Pot Seedling Storage Section 31 Supporting Member 32 Tray Receiving Section 33 Drive Wheel 35 Driven Wheel 37 Endless Band 38 Forced Transfer Member 39 Tray Collection Section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideo Nakajima 1-32, Chayacho, Kita-ku, Osaka-shi, Osaka Yanma Agricultural Machinery Co., Ltd.

Claims (2)

[Claims] 1. A transplanter having a plurality of seedling accommodating portions, and a vertical feeding means for vertically feeding a seedling tray supported by a supporting member to a seedling take-out side, wherein the vertical feeding means is provided in the seedling tray. A toothed drive wheel and a toothed driven wheel that are arranged at a predetermined interval in the vertical feed direction, an endless belt that is hung between these drive and driven wheels, and the endless belt that is provided on the endless belt A plurality of forcible transport members that enter and are caught between the seedling accommodating portions, wherein the support member is disposed along the endless belt and guides and supports the lower surface of the seedling tray, and the forcible transport. A tray collecting unit that receives a seedling tray that is turned around on the feed end side of the tray receiving unit by a member is provided below, and the tray collecting unit collects a space between the collecting end unit and the endless belt. To be larger than the distance between the start end and the endless belt A transplanter characterized by being inclined. 2. The transplanter according to claim 1, wherein one of the drive wheel and the driven wheel located on the seedling take-out side has a larger diameter than the other.