JPH0372805A - Transverse feeder of seedling loading stage - Google Patents

Abstract

PURPOSE:To perform always excellent transplanting with nipping of seedling in a transplanting lever at the center of a seedling-taking out port by relatively adjusting the timing of transverse feeding of a seedling loading stage in the seedling transplanting action of a transplanter. CONSTITUTION:In a transverse feeder 70 of a seedling loading stage 25 transversely feeding the seedling loading stage 25 supported on machine body in transversely sliding free to advancing direction of a transplanter 1 in synchronizing with the planting action of a transplanter 14, transverse moving of the seedling loading stage 25 and the timing of planting action of the transplanter are relatively adjusted to nip seedling with a transplanting lever at the center of seedling-taking out port and to perform always excellent transplanting.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lateral feeding device for a seedling stand provided in a vegetable transplanter or the like.

[Conventional technology] By reciprocating the seedling stand on which the seedlings are placed from side to side with a transverse feeder, the seedlings are sequentially fed to a predetermined seedling outlet.
There is a vegetable transplanter in which the seedlings supplied to the seedling outlet are held in a planting rod of a planting device that moves up and down in a predetermined trajectory, and are planted in a field. The above-mentioned cross-feeding device and planting device.

They are designed to operate in synchronization with each other by transmission from a common drive shaft, and the timing of the operation of these devices was determined at the time of assembly.

[Problem to be solved by the invention]

However, during use, the timing of the operation of the two may be inconsistent, and for example, as shown in FIG.
In some cases, the seedlings could not be held in place properly, making it difficult to properly plant them. Therefore, an object of the present invention is to make it possible to easily adjust the timing of the operation of the transverse feeding device of the seedling stand and the planting device at any time even after assembly.

[Means for Solving the Problems] In order to solve the above problems, the present invention has the following configuration.

That is, the lateral feeding device for a seedling platform according to the present invention horizontally moves the seedling platform, which is supported by the body so as to be slidable in the transverse direction with respect to the advancing direction of the transplanting machine, in synchronization with the planting operation of the planting device. A lateral feeding device for a seedling platform that is fed in a direction is provided with timing adjustment means that can relatively adjust the timing of the lateral movement of the seedling platform and the timing of the planting operation of the planting device. It is said that

[Function] The timing of the horizontal movement of the seedling platform and the planting operation of the planting device can be adjusted arbitrarily, so by setting this timing to an appropriate state, the planting rod can be moved at the center of the seedling take-out Fl. The seedlings can be held between them to ensure good planting at all times.

[Example] The implementation shown in the drawings will now be described.

The illustrated vegetable transplanting machine 1 has a main transmission case 2 and an engine 3 arranged at the front of the machine body, and a front wheel transmission case at the tip of a cylindrical part 5.5 protruding from both left and right sides of the mission case 2. A front wheel 7.7, which is a driving wheel, is pivotally supported at the lower end of the front wheel transmission case 6.6. A front transmission frame 10 extends rearward and is fixedly connected to one rear side (the left side in the illustrated example) of the E-mission case 2, and a planting part mission case 11 is provided at the rear end. Further, a rear transmission frame 13 extends rearward from the planting part mission case 11, and a planting device 14 is provided at the rear end. A rear wheel support shaft 16 is located at the lower front position of the planting part transmission case 11.
is suspended horizontally, and a rear wheel 18 is pivotally supported at the lower end of a rear wheel support arm 17 provided diagonally downward rearward from the end of the support shaft. Furthermore, an earth digging device 20 and a soil covering device 21 are attached to this rear wheel support shaft 16. Both the front wheel transmission case 6.6 and the rear wheel support arm 17 are attached so as to be able to rotate up and down around the base, and the height of the aircraft can be adjusted by appropriately moving these together using the lifting device described later. It has become.

The interior of the planting section transmission case 21 is constructed as shown in FIG. That is, a drive shaft 41 and a camshaft 42 parallel to each other supported by bearings 40 .
A sprocket wheel 45 is attached to the sprocket wheel 45, and a chino 46 provided within the front transmission frame 10 is hooked to this sprocket wheel 45.

Further, the cylindrical shaft 43 is formed with a spline portion 43a having a spline groove cut on its outer circumferential portion, and two gear portions 47a are attached to the spline portion 43a.
, 47b is fitted into the gear cylinder 47. This gear cylinder 47 can be slid in the axial direction by a chic 50 operated by a lever 49 between the stumps. On the drive shaft 41 side, a gear portion 52a that meshes with the gear portion of the gear cylinder 47;
52b is fitted, and the gear cylinder 52 is transmission connected to the drive shaft 41 via a fixed position clutch 53. The fixed position clutch 53 is biased toward the gear cylinder 52 by a spring 54, and normally the claws 5 of each other are
3a and 52e mesh with each other to perform transmission, but by pressing the taber surface 53b with the planting lever 55, the clutch escapes in the opposite direction to the gear cylinder 52 against the repulsive force of the spring 54. The transmission is released and the drive shaft 41 stops at a predetermined position (angle). Further, the drive shaft 41 is provided with a one-way clutch 56 so that it can only rotate in one predetermined direction.

This drive shaft 41 is a shaft that drives the planting device 14 and the transverse feed device 70 of the seedling stand described later, and a sprocket wheel 60 on which a chino 58, 59 that transmits power to both devices is hung.
．． 61 is attached.

The drive shaft 41 and the camshaft 42 are constantly transmission connected through gears 63, 64. One end of the cam shaft 42 protrudes outside the case, and a cam mounting shaft 65 connected to the protruding end is connected to a vertical feed cam 67 that operates a vertical seedling feed belt 30 described later.
．． 67, soil digging cam 68 for operating the soil digging device 20;
A soil covering cam 69 for operating the soil covering device 21 is attached to each.

At the top of the fuselage, there is a seedling stand 25 slightly inclined so that the front part is on top, and front and rear support rails 26.2 are installed in the left and right direction.
The seedling stand is slidably supported by a support member 7, and the seedling stand is reciprocated along a rail by a transverse feeder 70. The seedling table 25 has a pair of front and rear rollers 30a at its bottom.
, 30b. Further, as shown in FIG. 5, a receiving frame 32 is integrated with the rear rail 27 and has a seedling outlet 31 formed in its center.
is provided adjacent to the rear side of the seedling platform 25 and at approximately the same height as the seedling platform. As seedlings 110 for transplantation, for example, bots 111a, . . . as shown in FIG. The seedlings grown in pots are used, and the potted seedlings are arranged vertically and horizontally on a seedling stand as shown in FIG. At the time of transplantation, the transverse feed device 7
0, the entire seedling platform 25 is reciprocated in the left-right direction in synchronization with the operation of the planting device 14 and the like.

When the seedling platform 25 reaches the end of the left and right travel, the vertical seedling conveying belt 30 rotates in a predetermined direction by a certain amount to send one row of seedlings to the seedling outlet side, and the seedlings on the platform are sequentially moved one by one. The seedlings are supplied one by one to the seedling outlet 31.

The transverse feed device 70 of the seedling stand of this vegetable transplanter has a structure shown in FIGS. 2 and 3. Lead cam shaft 71
is a shaft having spiral grooves 72, 72' formed on its outer periphery, and is provided on the opposite side of the chain case, sandwiching the upper end of the chain case 4 that accommodates the chain case 59 and the seedling stand 25. The chino 5 which is supported between the fixture 75 and is a transmission means
It is transmitted from the planting part transmission case 11 via the transmission case 9 and rotates in a predetermined direction. The chino 59 is hung on a sprocket wheel 76 attached to a lead cam shaft 71. The moving rod 78 is a rod having a threaded portion 78a formed in the center thereof, and its left and right ends are integrally attached to the bottom of the seedling stand 25 in parallel with the lead cam shaft 71. The lead metal 80 holds a pawl member 81 having a lead pawl 81a that engages with the spiral grooves 72 and 72', is slidably fitted onto the lead cam shaft 71, and has a pair of mounting plates 182, 82''. The mounting plates 82, 82' have through holes 83, 83 for inserting the moving rod in the upper part, and elongated holes 84, 84 in the vertical direction for attaching the lead metal in the lower part. , and a moving rod fixing nut 85 is fixed to one plate 82 in alignment with the axis of the through hole 83. Lead metal 80
and the mounting plate 82.82' means the elongated hole 84.84.
The two are integrated by screwing the bottle 87 inserted into the lead metal bottle receiving member 88°88.

Therefore, by changing the insertion position of the bin 87 in the elongated hole 84, the mounting height of the seedling stand 25 can be changed, and the timing of seedling clamping by the planting rod 35 of the planting device described later can be adjusted. Also, moving rod 78 and fixed play) 8
What is 2.82'?

The moving rod is inserted into the through holes 83, 83 of the plate, and the threaded portion 78a of the moving rod is screwed into the fixing nut 85, thereby integrating the two. By changing the screwing position of the fixing nut 85 and the screw 78a, which are timing adjusting means, and changing the mounting position of the lead metal 80, the movable rod 7
8 and the lead cam shaft 71 are relatively out of phase, and the timing of the lateral movement of the seedling platform 25 and the operation of the planting device 14 is adjusted. When adjusting this timing, as shown in FIG. The distance between the side plate 25a and one claw 36 of the planting rod 35 is adjusted to be appropriate. Note that the lead cam shaft 71 is connected to the chain case 4 and the lead metal 80.
And it is covered with a bellows-type elastic cover 86.86'' provided between the fixture 75 and the front case 4.

Further, FIG. 4 shows a transverse feed device with a different configuration, and this transverse feed device 70' is connected between a sprocket wheel 76' on which a chino 59, which is a transmission means from the drive shaft 41, and a lead cam shaft 71' are connected. is provided with timing adjustment means. That is, the sprocket wheel 76' is integrally molded with a cylindrical shaft 90 that fits on the lead cam shaft 71', and a cylindrical chrysanthemum seat 92 is non-rotatably fitted to the end of the lead cam shaft 71'' by a key 91. The cylindrical shaft 90 and the chrysanthemum seat 92 are engaged with each other by chevron-shaped occlusal protrusions 90a, . . . , 92a, . , washers 95, and bolts 96 so as not to move in the axial direction.The occlusal protrusions 90a, . . . 92a, . . . are formed continuously at a constant pitch.

By changing the engagement position of the two, the relative phases of the sprocket wheel 76' and the lead cam shaft 71' can be adjusted.

Either the timing adjustment means shown in FIGS. 2 and 3 or the timing adjustment means shown in FIG. 4 may be adopted, and the phases of the movements of the planting device 14 and the seedling platform 25 can be adjusted relative to each other. It's fine as long as it's possible.

Each of the planting devices 14 has a plurality of shafts, gears, etc.
Rotating case 33, second rotating case 34, and planting rod 35
A pair of transplant claws 36, 36 and one seedling extrusion body 37 are provided on the planting rod. The first rotating case 33 rotates counterclockwise in FIG. 1 at a predetermined speed corresponding to the rotational speed of the front wheels 7, 7, and the second rotating case 34 rotates counterclockwise (clockwise). Rotating at high speed, the planting rod 35 moves vertically in an elongated elliptical orbit. During this time, the planting rod 35, the transplanted claws 36 and 36 attached thereto, and the seedling extrusion body 37 maintain the same posture from beginning to end. In FIG. 1, P indicates the trajectory of the tip of the transplanted nail, and at Pi, that is, the position of the seedling extraction port 31, the seedling pusher 37 is locked onto the upper surface of the pot part of the lid 110, and the pair of transplanted nails 36 and 36 are closed. The seedlings located at the seedling take-out port 31 are divided into one potted seedling and held by a pair of transplanted claws. P2, that is, the transplanted nail 36 at the bottom of the trajectory
．． 36 opens and the boat 2 holding seedlings is removed from the soil digging device 2.
0 into the transplant hole formed in the field. In addition, at P3, where the transplanted nail was slightly elevated compared to P2, the extruded body 3
7 moves downward and forcibly separates the seedlings that have been lifted up while attached to the transplanted nails from the transplanted nails, so that the seedlings are reliably transplanted. After transplanting, the soil is covered with soil by the soil covering device 31.

The elevating device of the aircraft is hydraulic, and a hydraulic pump 90 is integrally provided at the rear of the main transmission case 2, and a driving hydraulic cylinder 92 and its hydraulic valve 93 are installed behind it.
is provided. A horizontal rod 95 is integrally provided at the rear end of the hydraulic cylinder 92, and left and right front wheel connecting rods 96, 96 are attached to both ends of the horizontal rod, and a rear wheel support rod 97 is attached only to the left end. ing. These connecting rods include arms 98 and 98 protruding from the cylindrical portions 5 and 5, and rear wheel support shafts 16.
The arms 99 are respectively connected to the distal ends of arms 99 protruding therefrom. This lifting device is a planting depth control device 10 described below.
Controlled by 0.

That is, the planting depth control device 100 includes a grounding body 101 that moves along the ridge surface below the rear wheel support shaft 16, and the vertical movement of this grounding body is transmitted to the hydraulic valve 93 via the arm 103 and the rod 104. For example, when the ridge 105 becomes high and the grounding body 101 moves upward, the valve 93 moves in the direction of extending the hydraulic cylinder 92. Can be switched. When the hydraulic cylinder 92 extends and the horizontal rod 95 moves backward, the connecting rod 96 attached to it,
The cylindrical parts 5, 5 and the rear wheel support shaft 16 are rotated through the shafts 96 and 97, and the front wheels 7, 7 and the rear wheel 18 are simultaneously moved down and the body is lifted. Conversely, when the ridge 105 becomes lower and the grounding body moves downward, the aircraft body is lowered. in this way,
By raising and lowering the machine appropriately according to changes in the height of the ridge by the action of the planting depth control device atioo, the planting work section is kept at a constant height from the ridge surface, and the planting depth is maintained constant. be able to.

[Effects of the Invention] As explained above, the device for horizontally feeding the seedling platform according to the present invention can easily adjust the timing of horizontally feeding the seedling platform with respect to the seedling planting operation by the planting device. As a result, it has become possible to always perform good planting.

[Brief explanation of drawings]

Fig. 1 is a side view of a vegetable transplanter which is an example of the present invention;
The figure is a side view of the main part, Fig. 3 is a plan sectional view thereof, Fig. 4 is a sectional view of the main part of a different embodiment, and Fig. 5 is a seedling placed on a seedling stand.
FIG. 6 is an explanatory diagram of the timing adjustment, and FIG. 7 is an explanatory diagram of the seedling raising device. l...Vegetable transplanter, 2...Main transmission case, 3
... Engine, 7... Front wheel, 11... Planting part mission case, 14... Planting device, 18... Rear wheel,
25... Seedling stand, 41... Drive shaft 1, 70.70'
...Transverse feed device, 71.71'...Lead cam shaft,
78...Moving rod, 78a...Threaded part, 80...Lead metal, 82.82'...Mounting plate, 90...
...Cylinder axis, 92...Chrysanthemum.

Claims (1)

[Claims] (1) In a lateral feeding device for a seedling platform, which is supported by a machine body so as to be slidable in a transverse direction with respect to the traveling direction of a transplanter, the device supports the seedling platform in a horizontal direction in synchronization with the planting operation of a planting device, A lateral feeding device for a seedling platform, characterized in that a timing adjustment means is provided that can relatively adjust the timing of the lateral movement of the seedling platform and the timing of the planting operation of the planting device.