JPS6128315A - Planting device of rice planter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention is a rice transplanter configured to take out one seedling with a planting claw from a seedling stand that moves back and forth when the machine is running and sequentially plant it in a field. This invention relates to a planting device.

``Prior Art'' Conventionally, when adjusting the amount of lateral movement of the seedling platform according to the amount of seedlings taken per plant by the planting claw, it has been done by recombining the gears or sprockets of the lateral movement mechanism.

``Problems to be Solved by the Invention'' However, in cases where gears or sprockets are recombined, adjustments can only be made in two or four stages, and there is a limit to the amount of adjustment. However, there was a drawback that it was not possible to plant a fixed number of seedlings by accurately adjusting the sowing characteristics such as thin or thick sowing.

``Means for Solving the Problems'' Therefore, the present invention interlocks a pulse generator to the planting arm shaft that drives the planting claws, and connects a pulse motor to the transverse feed shaft that transversely feeds the seedling stand. The seedling table is connected to each other, and the seedling platform is configured to be moved horizontally by the pulse waves generated by the pulse generator in a manner that allows the amount of horizontal feeding to be freely adjusted.

"Function" According to the present invention, the transverse feed mechanism can be configured by an extremely simple means of connecting the pulse generator and the pulse motor via a control circuit using a frequency divider, for example, and the structure can be simplified. It can be easily integrated into the planting section, and the amount of lateral feed can be easily adjusted in a stepless manner by, for example, adjusting a dial while looking at the memory, making it possible to always plant a constant number of seedlings with high work efficiency. The purpose is to improve the accuracy of planting.

``Example'' An example of the present invention will be described in detail below based on the drawings. 1st
The figure is an enlarged sectional view of the main part, the planting part, and Figure 2 is a side view of the whole. In the figure, (1) is the engine, (2) is the transmission case, and (3) is the planting mission case. , the engine (1) and the cases (2) and (3) are integrally connected to form a fuselage, and a paddy wheel (5) is installed on the side of the fuselage via a swing case (4). do.

There is a handle (
6), and a seedling stand (9) with a low front and rear height that is reciprocated from side to side via guide members (7) and (8) is attached to the case (
3) and a link that is attached to the top of the handle (6), incorporates a planting claw (10) for taking out -1000 seedlings from the seedling stand (9), and has a planting depth adjustment lever (11). (12) and a buffer member (13), the body is supported by a float-like sliding body (14), the body is moved by the operator's operation of the handle (6), and the seedling platform (8)
The seedlings loaded on the container are taken out by a planting claw (lO), and the -seedlings are successively planted in the field.

In addition, in the figure (15) is an input shaft that is interlocked and connected to the engine (1) via a transmission gear (not shown), and (16) is connected to the input shaft (15) via a planting clutch (17). The rotating shaft (18) is a pair of bevel gears (19) (
20) and a safety clutch that disengages due to overload (2)
1) a planting arm shaft connected to the rotating shaft (16) through (22) a rotating arm fixed to both ends of the arm shaft (18); (23) a shaft (24) connected to the arm (22);
A planting arm (25), which is connected to the intermediate part through a support rod (25) and has the planting claw (10) attached thereto, is rotatably provided on a support rod (26) that is integrally formed with the transmission case (3). It is a swinging arm connected to the rear end of the planting arm (23) via a shaft (27).

Furthermore, in the figure (28) is a transmission shaft that is interlocked and connected to the arm shaft (18) via a sprocket (28), (30) and a chino (31), and (32) is a shaft coupling (28) that is connected to the transmission shaft (28). The pulse generator (34) is connected via the cam (33), which has a screw groove (35) and has a cam (38) at both ends for vertically feeding the seedlings.
), and (37) is the horizontal feed shaft (37).
A pulse motor (40), which is a transverse feed motor, is interlocked and connected to 34) via a pair of transmission gears (38) and (39), and a pulse motor (40) is connected and fixed to the seedling stand (8), and is connected to the transverse feed shaft (34). It is a left and right sliding shaft connected via a slider (41), which interlocks and connects the seedling stand (8) and the planting claw (10), and connects the seedling stand (8) and the planting claw (10).
8) is moved back and forth from side to side, and the seedlings are taken out using the planting claw (lO).

FIG. 3 is a control circuit diagram of the motor, in which the pulse generator (32) and the traverse feed regulator (43) are connected to a control circuit (42) consisting of a frequency divider, and the regulator (43) The number of pulses of the pulse wave from the generator (32) is adjusted by operating the dial, and the control circuit (42) is connected to the motor (37) via the drive circuit (44) to control the control circuit. The motor (37) is configured to be driven by the output pulse signal from (42).

(A pulse motor can rotate in proportion to the number of pulses.

) The seedling platform (8) is reciprocated from side to side in synchronization with the drive of the planting claw (10), and by operating the dial on the regulator (43), the motor (37) is activated. The characteristics of the input pulse wave change, and the driving speed of the motor (37) is adjusted steplessly. As a result, it is possible to adjust the transverse feed amount to the optimum amount depending on the type of seedlings to be seeded, such as thinly sown or thickly sown seedlings, and it is possible to always maintain a constant number of planted seedlings.

FIG. 4 shows another example of a modified structure, and in the above-mentioned embodiment, the thread grooves (35) of the transverse feed shaft (30) are formed in two directions, and the shaft (30) is rotated in only one direction. Although the structure for reciprocating the seedling platform (8) is shown,
This structure has a threaded groove (35a) on the horizontal feed shaft (34a).
is formed in one direction only, and the seedling platform (8) is moved back and forth by rotating the shaft (34a) in forward and reverse directions. Rigging (8) Left and right moving end detection cam installed on the bottom surface (4
5) (4B) is a limit switch on the planting mission case (3) facing this. The signal stops the drive of the motor (37) for a certain number of pulses, and then drives the motor (31) in reverse to The seedling stand (8) is configured to be moved in reverse. Further, the pulse generator (32) is directly connected to the planting arm shaft (18). In this case as well, the amount of lateral movement of the seedling platform (9) can be adjusted to an appropriate amount of lateral movement according to the amount of seedlings taken by the planting claw (lO). Note that the pulse motor (37) is connected to the horizontal feed shaft (34) (3
A structure directly connected to 4a) may also be used.

"Effects of the Invention" As is clear from the above embodiments, the present invention has a pulse motor (37) interlockingly connected to the transverse feed shaft (34) (34a) to be planted, and the pulse generator (32) generates a pulse. Since the seedling platform (8) is moved horizontally by waves in a manner that allows the amount of horizontal movement to be adjusted freely, the pulse generator (32) and pulse motor (37) are controlled by a control circuit (42) using, for example, a frequency divider.
The transverse feed mechanism can be configured by an extremely simple means of connecting via the
3) Inward m can be easily adjusted, and the amount of lateral feed can be adjusted steplessly and accurately by simple operation using the dial tAt1g, for example, making it possible to always plant a substantially constant number of seedlings. It has remarkable effects such as being able to improve planting accuracy.

[Brief explanation of the drawing]

FIG. 1 is an enlarged sectional view of a planting part showing an embodiment of the present invention;
Figure 2 is an overall side view, Figure 3 is a motor control circuit diagram,
FIG. 4 is an explanatory diagram showing another example of a modified structure. (8)... Seedling stand (10)... Planting claw

Claims (1)

[Claims] A pulse generator is interlocked and connected to the planting arm shaft that drives the planting claw, and a pulse motor is interlocked and connected to the transverse feed shaft that transversely feeds the seedling stand, and the amount of transverse feed is controlled by the pulse waves generated by the pulse generator. A planting device for a rice transplanter, characterized in that it is configured to horizontally feed a seedling stand in an adjustable manner.