JPH09215414A - Transplanting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a longitudinally sent seedling tray from splitting and send the seedling tray effectively and longitudinally without varying the pitch of forcible conveyance members without reference to whether the seedling tray has large or small seedling storage parts. SOLUTION: The seedling tray is sent forcibly and longitudinally by providing an endless belt 37, which moves cyclically, with the forcible conveyance members 38 which enter into between seedling storage parts of the seedling tray 10 and are caught. Further, the forcible conveyance members 38 are arranged at intervals which are the least common multiple of the pitch of plural kind of seedling trays 10 differing in the pitch of seedling storage parts 10a and the seedling tray can be sent effectively and longitudinally without varying the pitch of the forcible conveyance members 38 irrelevantly to whether the seedling tray has the large or small seedling storage parts.

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 The vertical feeding means of a transplanting machine is a 2-Kaikai flat.
As described in Japanese Patent No. 713, driving wheels and driven wheels arranged at predetermined intervals in the longitudinal feed direction of a seedling tray having a plurality of seedling accommodating portions, and hanging between these driving and driven wheels. , An endless belt that receives and conveys a seedling tray having a plurality of seedling accommodating portions, and an electric motor that drives the drive wheels when the seedling extracting portion that extracts seedlings from the seedling tray moves forward and backward to the end of the lateral movement A motor is provided, and when the seedling take-out portion moves forward and backward to the end of the lateral movement, the drive wheel is driven by the electric motor to vertically feed the seedling tray every pitch.

[0003]

However, when the seedling tray is longitudinally fed by the friction transmission method using the endless belt as described above, slippage is apt to occur between the endless belt and the seedling tray, so that the seedling tray can be reliably secured. There is a problem in that it is difficult to vertically feed the seedlings, and the vertical feeding accuracy is poor, so that the seedlings may not be reliably taken out from the seedling tray by the seedling take-out portion.

The present invention has been made in view of the above-mentioned circumstances, and a forced transport member is provided in the endless belt to forcibly feed the seedling tray vertically, so that the seedling tray is prevented from sliding on the support member. Even if it is a seedling tray that can be prevented and has a large seedling storage section, or even a seedling tray that has a small seedling storage section, the vertical feeding can be effectively performed without changing the pitch of the forced transport member. The purpose is to be able to.

[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 drive wheel and a driven wheel arranged at intervals, an endless belt hung between the drive wheel and the driven wheel, and an endless belt provided on the endless belt and intruding between the seedling accommodating portions of the seedling tray. A plurality of forcible conveying members that hang, the forcible conveying member,
The present invention is characterized in that the seedling accommodating portions are arranged at intervals of approximately the least common multiple of the pitches in a plurality of types of seedling trays having different pitches.

According to the present invention, since the seedling tray is forcibly fed vertically by providing the forced conveying member on the endless belt which circulates, the seedling tray can be satisfactorily fed vertically without causing slippage. Moreover, since the forced transport members are arranged at intervals of almost the least common multiple of the pitches of a plurality of types of seedling trays having different pitches of the seedling accommodation portion, even if the seedling tray has a large seedling accommodation portion, Even if the seedling tray has a small seedling container, it can be effectively fed vertically without changing the distance between the driving wheel and the driven wheel, the length of the endless belt, the position of the forced transport member, etc. You can

[0007]

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 transport unit in a transplanter according to the present invention, and FIG. 5 is a partially cutaway side view of the entire transplanter. In FIG. 5, 1 is a traveling machine body and a front frame 1A. The transmission case 1B and the rear frame 1C are integrally assembled, and the engine 2 is mounted on the upper side of the front frame 1A.
While supporting a transplanting device 3 described later on the rear frame 1C side, on both side surfaces of the mission case 1B in the vehicle width direction,
A pair of transmission cases 4 and 4 each extending rearward and downward.
Are provided so as to be vertically swingable, and drive wheels 5 and 5 are respectively supported on their free end sides, and these drive wheels 5 and 5 are transmitted from the engine 2 via the transmission case 1B and the transmission cases 4 and 4. The traveling machine body 1 is configured to be self-propelled by being driven by rotational power.

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 pot seedlings 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 via a support 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.

Further, 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. 5 denotes a steering handle mounted on the rear frame 1C facing rearward and upward.

Thus, the vertical transfer unit 30 of the transplanting apparatus 3 in the transplanter constructed as described above, that is, the vertical transfer apparatus is configured as follows. The vertical transport unit 30 is
As shown in FIG. 1, a frame-shaped support member 31 including a pair of side walls 31a, 31a facing each other at a predetermined interval and a connecting rod 31b connecting the both side walls 31a, 31a.
Is provided with a tray receiving portion 32 for supporting and guiding the seedling tray 10, and side walls 31a, 31a of the supporting member 31.
A drive shaft 34 having drive wheels 33, 33 formed of a pair of opposed sprockets is rotatably supported between the front portions of the driven wheels, and a driven wheel formed of a pair of opposed sprockets between the rear portions. A driven shaft 36 having 35, 35 is rotatably supported by the driven shaft 36, and each of the drive wheels 33, 33 and the driven wheel 3 is supported.
Endless belts 37, which are chains 5 and 35,
On the other hand, the endless belts 37, 37 are provided with a large number of forcible conveying members 38 which are hooked to the pot seedling accommodation portion 10a of the seedling tray 10 and are forcibly conveyed on both endless belts 37, 37 at predetermined pitch intervals. The transport member 38 is configured to forcibly feed the seedling tray 10 vertically.

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.

In order to use the pot seedling accommodating portion 10a for plural kinds of seedling trays 10 having different vertical pitches, the pitch P of the forced transfer member 38 is set as shown in FIG. Vertical pitch P in plural kinds of seedling trays 10 and 10 'having different pitches of the portion 10a
1 and P2 are approximated to the least common multiple, and the number of teeth of the drive wheels 33, 33 is set in a pitch P of the forced transfer member 38. The number of teeth is set to the least common multiple of the number of parts 10a and 10a '.

In this case, for example, one seedling tray 10 to be used has a longitudinal pitch of 4 cm and another seedling tray 10 to be used.
When the vertical pitch of ′ is 5 cm, the forced transfer member 38
Is set to 20 cm, which is the least common multiple of 4 cm and 5 cm, and the pitch P of the forced transport member 38 is
The number of pot seedling storage portions 10a of one seedling tray 10 entering the inside is 5, and the pot seedling storage portion 1 of another seedling tray 10 'is 1
When the number of 0a 'is 4, the number of teeth of the drive wheels 33, 33 is set to 20 or more.

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 when the support member 31 is moved forward or backward to any of the left and right lateral feed end positions. The limit switches L1 and L2 for detecting this detect the signal, and the motor M is intermittently driven by the detection signal from the limit switch L1 or L2 to vertically feed the seedling tray 10 every one pitch. It's done like this.

Further, as shown in FIG. 1, the support member 31 has a plate-like shape for supporting and guiding the seedling tray 10 between the driving wheel 33 and the driven wheel 35 on the conveying side of the seedling tray 10. While attaching the tray receiving portion 32, the side walls 31a, 31
A tray collecting section 39 is provided for receiving and guiding the transplanted empty seedling tray 10 via the receiving bodies 71 and 72 supported below a. The tray receiving surface 32a of the tray receiving section 32 has a feed start end portion 32b. And the drive side portion 37 of the endless belt 37
The space between the seedling tray 10 and the feeding end portion 32c is inclined at a predetermined angle α so as to be smaller than the distance between the feeding end portion 32c and the driving side portion 37a, and the seedling tray 10 is provided with the endless belt 37 on the feeding starting end portion 32b side. The entry is made at a predetermined angle α with respect to the movement trajectory.

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
With respect to the linear movement locus of 7b, it is separated from the collection start end portion 39b downward at a predetermined angle β in the collection direction.

In the embodiment shown in the figure, a large number of wire rods are used as the tray collecting section 39, and each of these wire rods is placed below the side walls 31a, 31a via the receiving members 71, 72 to extend the width of the supporting member 30. It is formed so as to be supported in parallel at predetermined intervals in the direction.

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.

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.

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 and backward by the lateral feed means to either the lateral feed end position in the left or right direction, the seedling tray 10 supported by the tray receiving portion 32 of the support member 31 is fed vertically 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, with respect to the movement locus of the drive side portion 37a, the feed start end portion 32b of the tray receiving surface 32a of the tray receiving portion 32 and the drive side portion 3 of the endless belt 37.
A predetermined angle α so that the distance between the feeding end portion 32c and the driving side portion 37a is smaller than the distance between the feeding end portion 32c and the driving side portion 37a.
Therefore, the forced conveying member 38 is inclined toward the seedling tray 10 from the lower side to the upper side of the seedling tray 10 from the bottom side of the seedling tray 10 from the sending start end portion 32b side to the sending end portion 32c side. Because it moves
The forced transfer member 38 does not push the bottom portion of the seedling tray 10 outward to detach the seedling tray 10 from the tray receiving portion 32, and the forced transfer member 38 is disposed between the pot seedling storage portions 10 a and 10 a of the seedling tray 10. It is possible to smoothly enter the groove 10b.

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, the interval between the seedling tray 10 and the driven portion 37b is inclined 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.

Since the forced transport members 38 are arranged at intervals of almost least common multiple of the pitches of a plurality of types of seedling trays having different pitches of seedling accommodating portions, a plurality of types of seedling trays 1 are provided.
When using 0, the forced transport member 38 and the endless belt 3
7. The drive wheel 33 and the driven wheel 35 can be replaced effectively, or the vertical feed can be effectively performed without changing the distance between the drive wheel and the driven wheel, the length of the endless belt, the connecting position of the forced conveying member, or the like. it can.

Incidentally, in the embodiment shown in FIG. 5, the pot by the transplanting claw 53 reciprocates in the vertical direction on the front side of the transplanting claw 53 in conjunction with the internal mechanism of the planted transmission case 51. A multi-cutter 54 that moves down immediately before the transplanting of seedlings to form a transplant hole in the multi-film F laid on the ridge A is provided, and at the rear side of the transplant nail 53, the transplant nail 53 is used for transplant. A culture soil ring 55 is provided for cultivating soil in the pot seedlings.

[0030]

According to the transplanting machine of the present invention, since the seedling tray is forcibly vertically fed by providing the forced conveying member on the endless belt which circulates, the seedling tray can be satisfactorily lengthened vertically without causing slippage. In addition, since the forcible transporting member can be fed and is arranged at intervals of almost the least common multiple of the pitches of a plurality of types of seedling trays having different pitches of the seedling storage portions, the seedling tray having a large seedling storage portion can be used. Even if the seedling tray has a small seedling storage unit, it is effective without changing the distance between the drive wheel and the driven wheel, the length of the endless belt, the position of the forced transfer member, etc. It can be fed vertically.

[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 an explanatory diagram for enabling use of a plurality of types of seedling trays.

FIG. 4 is a schematic diagram of a transplantation device in a transplanter according to the present invention.

FIG. 5 is a partially cutaway side view of the entire transplanter according to the present invention.

[Explanation of symbols]

 33 drive wheel 35 driven wheel 37 endless belt 38 forced transport member

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

Claims (1)

[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 drive wheel and a driven wheel which are arranged at a predetermined interval in the longitudinal feed direction, an endless belt hung between these drive and driven wheels, and a seedling accommodating portion of the seedling tray provided in the endless belt. And a plurality of forced transport members that enter and are caught, wherein the forced transport members are arranged at substantially least common multiple intervals of the pitches in a plurality of types of seedling trays having different seedling accommodating portions. Transplanting machine.