JPS6335540Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a rice transplanter equipped with a seedling stand that moves back and forth from side to side and a planting section with planting claws for taking out one seedling from the seedling stand. Regarding a seedling usage amount detection device that uses a vertical feed sensor to detect the vertical feed amount of pine seedlings that are slid down by a vertical feed mechanism, the device is installed on a seedling platform and detects the vertical feed amount of the seedlings on the upper surface of the device. The device is equipped with a vertical feed amount confirmation device that counts the vertical feed amount of the seedlings on the seedling platform via a vertical feed amount sensor for detecting the vertical feed operation of the seedlings on the seedling platform, and detects the vertical feed operation of the seedlings on the seedling platform, This device is equipped with a confirmation regulating device that operates the seedling table, and can prevent the counting of the sliding descent of pine seedlings other than the vertical feeding of the seedlings on the seedling stand, and accurately obtain only the actual amount of vertical feeding of the seedlings. It is possible to properly check the vertical feed rate of seedlings, and it is possible to reliably detect, for example, the occurrence of missing plants and insufficient number of plants to be planted, and it is possible to continuously obtain extremely uniformly planted seedlings, making it possible to carry out rice planting work efficiently and safely. The present invention aims to provide a device for detecting the amount of seedlings used in a rice transplanter.

Embodiments of the present invention will be described in detail below based on the drawings.

Fig. 1 is a schematic side view of the riding rice transplanter, and Fig. 2 is a plan view of the same. , 5 is a connecting frame that connects the front and rear car bodies 2, 3 so as to be bendable only in the horizontal direction via a rotation fulcrum shaft 6; Front and rear running wheels to be installed,
11 is a column whose base end is fixed to the front vehicle body 2; 12 is a preliminary seedling stand supported by the column 11; 13 is a driver's seat that is attached to the upper rear part of the front vehicle body 2 via the column 11; and 14 is a front vehicle body 2. 15 is an engine mounted on the rear vehicle body 3.

In addition, 16 in the figure is a planting part for six-row planting that is installed in the front part of the front vehicle body 2 via a three-point linkage mechanism 17 so as to be able to be raised and lowered, and 18 is a planting part for seedlings with low front and rear height that can be moved back and forth from side to side. A mounting stand 19 is a planting claw for taking out one seedling from the seedling mounting stand 18 and planting it; 20 is a transmission case for mounting the seedling mounting stand 18 and the planting claw 19;
1 is a float supporting the transmission case 20, 22
2 is a front bumper attached to the transmission case 20;
Reference numeral 3 denotes a fixed frame that supports each transmission case 20, and is configured to appropriately drive the seedling platform 18 and planting claws 19 via the PTO transmission shaft 24, so as to continuously plant seedlings. In addition, in Figure 2, 25
26 is a main clutch pedal for intermittent operation of the output of the engine 15; 26 and 26 are left and right side clutch pedals for interrupting the drive of the front and rear running wheels 7 and 8 on the turning side; 27 is a hydraulic control lever for raising and lowering the planting section 16; , 28 is a clutch lever for interrupting the drive of the PTO transmission shaft 24.

As shown in FIGS. 3 and 4, the seedling stand 18 is supported on the upper surface of the transmission case 20 via upper and lower guide rails 29, 30 so as to be slidable left and right, and the seedlings are taken out from the inclined lower end of the seedling stand 18. The drive shaft 33 is inserted into the PTO transmission shaft 2 so that the plate 31 faces the drive shaft 33 which is inserted into the cylindrical shaft 32 for connecting the transmission cases 20...
The planting claw 19 is interlocked and connected to the input shaft 34 for connecting the transmission cases 20 and 4, and is installed in each transmission case 20...
... are formed to be operated synchronously via the drive shaft 33. Further, the central transmission case 20 supports a transverse feed shaft 35 and a camshaft 36 for laterally moving the seedling platform 18, and the cam shaft 36 is connected to the drive shaft 33. One end of the slider 40 is engaged with the reciprocating spiral groove 38 of the camshaft 36 via a pin 39, and the lateral feed shaft 35 is rotatably passed through the other end of the slider 40. The left and right vertical feed arms 41 and 42 fixed to the horizontal feed shaft 35 are brought into contact with both sides of the slider 40, and both ends of the horizontal feed shaft 35 are attached to the bracket 4.
3 is connected and fixed to the seedling platform 18, and the seedling platform 18 is reciprocated from side to side along with the transverse feed shaft 35 via the slider 40 by the rotation of the cam shaft 36. Pine seedlings 4 on the upper surface of the seedling stand 18
4 for forcibly sliding down in the direction of the seedling take-out plate 31 is supported on the seedling platform 18 via a vertical feed shaft 46.
The one-way clutch 47 is connected to the transverse feed shaft 35 by a lever 48.
The left and right vertical feed cams 49 and 50 are fixed to the left and right ends of the horizontal feed shaft 35,
The cam 49 or 50 is brought into contact with the arm 41 or 42 at the left-right moving end of the seedling table 18, and the horizontal feed shaft 35
The vertical feed shaft 46 and each star wheel 45 are rotated by a certain amount in one direction via the connecting rod 48 and the one-way clutch 47, and the pine seedlings 44 on the upper surface of the seedling stand 18 are moved intermittently in the direction of the seedling take-out plate 31. Form it so that it sends it to the destination. A vertical feed amount sensor 51 for detecting the vertical feed amount of the pine seedlings 44 on the upper surface of the seedling stand 18 is provided near the star foil 45 and at the upper end of the slope, and as shown in FIG. a ring body 53 for fixing magnets 52... to the ring body 53;
The sensor 51 is constituted by the Hall element 54 which is turned on via the magnet 52 by the rotation of the magnet 52 . In order to press the wheel 53 onto the back surface of the pine seedling 44 in the same way as the star foil 45, the wheel 53 is partially exposed on the upper surface of the seedling platform 18 through the opening 55 and is fixed to the back surface of the seedling platform 18. Brake rubber materials 58, 5 that support the support shaft 57 on brackets 56, 56 to prevent free rotation due to mechanical vibrations, etc.
8 is brought into sliding contact with the wheel body 53, and the wheel body 53 is formed to rotate in conjunction with this only by the sliding descent of the pine seedlings 44.

FIG. 6 is a partial explanatory diagram of the planting clutch lever 28, in which a planting clutch wire 59 for interrupting the drive of the PTO transmission shaft 24 is connected to the lever 28, and the lever 28 holds it in the cut position. A clutch arm 63 is provided which energizes a return spring 60 to release the lever 28 and holds the lever 28 in the engaged position by engaging a pin 61 and a notch 62. 61 and the notch 62, and a solenoid 66 that biases the arm 63 with a spring 65 that engages and holds the pin 61 and the notch 62, and releases the engagement between the pin 61 and the notch 62;
The piston 67 of the solenoid 66 is connected to the arm 6.
3, and by energizing the solenoid 66 when the lever 28 is in the on position, the lever 28 is automatically returned to the off position by the spring 60.

FIG. 7 is a block diagram for detecting the vertical feed amount of the pine seedlings 44, and as shown in FIG. The rotation of the wheel body 53 is detected through the left and right switches 68, 69 to be detected, the Schmitt trigger circuit 70 which connects each switch 68, 69 in parallel and outputs a high level only when one of them is on, and the Hall element 54. A counter 71 is a vertical feed amount confirmation and detection device that counts the amount.
and a NAND circuit 72 which is a confirmation and regulation device that operates the counter 71 by the detection output of the Hall element 54 only when the Schmitt trigger circuit 70 outputs a high level; A counter 71 counts only the vertical feed amount of the pine seedlings 44 of the star foil 45 at the left-right moving end of the seedling platform 18, and the device is lowered by, for example, mechanical vibration. The amount of movement of the pine seedlings 44 is formed so as not to be counted by the counter 71.

Further, reference amount switches 74, 75, 76 are used to set a reference amount of vertical feed of the pine seedlings 44 to match the adjustment of the vertical feed amount of the planting claws 19, which is performed in accordance with the planting field of the field and the growing state of the pine seedlings 44. ，
77 and adjusting resistors 78, 79, 80, 81,
Count output A of the counter 71 and the switch 7
A comparator 82 for comparing the reference quantity outputs B of 4 to 77, a light emitting diode 83 for indicating a normal state when the counting output A is greater than or equal to the reference quantity output B, and a drive transistor 84 for the diode 83. a light emitting diode 87 connected to the comparator 82 via a drive transistor 86 to indicate an abnormal state when the count output A is smaller than the reference amount output B, and a decoder 88. A light emitting diode 89 for displaying the vertical feed amount of the pine seedlings 44, which is the counting output A of the counter 71, is provided. Whether or not the feed amount is appropriate is displayed through the diodes 83 and 87, and the vertical feed amount of the pine seedlings 44 by the star foil 45 is displayed through the diodes 89...
The image is formed to be displayed by. The solenoid 66 is connected to the comparator 82 through the drive transistor 90 in parallel with the diode 87 for abnormality indication, and when the vertical feed amount of the pine seedlings 44 is less than the reference amount set by the switches 74 to 77. The solenoid 66 is energized and the planting clutch lever 28 is switched to the off position to stop the planting section 16 to prevent uneven planting numbers and occurrence of missing plants.
The main clutch pedal 25 is switched to the off position by the excitation operation of the solenoid 66, and the passenger section 1 is switched to the off position.
It can also be easily formed to stop.

Next, an AND circuit 96 is connected between the output side of the NAND circuit 73, which obtains a low level output at each output of the Schmitt trigger circuit 70 and the Hall element 54, and outputs a high level at other times, and the output side of the Hall element 54. and connected to the buzzer 97, and each switch 68,
69 is off, the output of the Schmitt trigger circuit 70 is at a low level and the output of the NAND circuit 72 is at a high level.
As the pine seedling 44 falls, the output of the Hall element 54 becomes high level and drives the buzzer 97 via the AND circuit 96 to notify the natural fall of the pine seedling 44.

Furthermore, a counter 91 is connected in parallel to the counter 71 and serves as a vertical feed amount confirmation device for counting the overall amount of seedling consumption, a switch 92 for resetting the counter 91, and a divider 93 and a decoder 94 are used to It is equipped with a display 95 connected to a counter 91 to display the total amount of seedling consumption, and is configured to count and display the amount of 44 pine seedlings used per unit area (for example, 1 are).

The present invention is constructed as described above, and it travels at a substantially constant speed, and the seedlings on the seedling platform 18 are taken out at a substantially constant speed by the planting claws 19 and planted successively at equal intervals. , by operating any of the switches 74 to 77 corresponding to the amount of vertical removal of the pine seedlings 44 of the planting nails 19 and setting the reference amount output B to be input to the comparator 82, the seedling platform 18 to be reciprocated will be moved to the left or When the right end of movement is reached, the left or right switch 68 or 69 is turned on, and in conjunction with the vertical movement of the star wheel 45, drives the Schmitt trigger circuit 70 and at the same time causes the star wheel 45 to slide down. The Hall element 54 controls the rotation of the wheel 53 that rotates in conjunction with the pine seedlings 44.
A counter 71 is operated via a NAND circuit 72 by each output of the circuit 70 and the element 54, and the vertical feed amount of the pine seedling 44 by the star foil 45 is counted by the counter 71, The count output A of the counter 71 and the reference amount output B are compared by a comparator 82. When the counting output A is greater than or equal to the reference amount output B, the light emitting diode 83 is turned on to indicate that the vertical feeding amount of the pine seedlings 44 is normal, while the counting output A is greater than the reference amount output B. When the pine seedlings 44 are small, turn on the light emitting diode 87.
displays that the vertical feed amount is abnormal, and also excites the solenoid 66 and disconnects the planting clutch lever 28 to stop the planting section 16, thereby reducing unevenness in the number of planted plants and occurrence of missing plants. At the same time, the counting output A of the counter 71 drives the decoder 88 to change the vertical feed amount of the pine seedlings 44 by the star foil 45 to the light emitting diodes 89...
It is displayed using , and used as a guideline for adjusting the amount of vertical seedling picking of the planting claws 19, etc. Further, the counter 91 interlocking with the counter 71 controls the star wheel 45
Continuously count the vertical feeding amount of the seedlings, and
The total amount of seedling consumption, which is the output of 1, is displayed on the display 95, and is used as a guideline for calculating the required amount of pine seedlings 44 per unit area. Seedlings 44
When the pine seedlings 44 fall naturally, a buzzer 97 sounds to alert the operator that the pine seedlings 44 have lost their shape.

As is clear from the above embodiments, the present invention counts the vertical feed amount of the seedlings on the seedling platform 18 via the vertical feed amount sensor 51, which is provided on the seedling platform 18 and detects the vertical feed amount of the seedlings on the upper surface. Vertical feed amount confirmation device such as a counter 71, 91 is provided to detect the vertical feed operation of the seedling table 18, and confirmation device such as a NAND circuit 72 that operates the vertical feed confirmation device 71, 91 when the seedling is vertically fed. A regulating device is provided, and the seedling platform 18
It is possible to prevent the counting of the sliding descent of the pine seedlings 44 other than the operation of vertically feeding the seedlings, and by accurately obtaining only the actual vertically feeding amount of the seedlings, the amount of vertically feeding the seedlings can be properly confirmed.
For example, it is possible to reliably detect the occurrence of missing plants and insufficient numbers of plants to be planted, it is possible to continuously obtain extremely uniformly planted seedlings, and it is possible to carry out rice planting work efficiently and safely, making it extremely practical. It is effective.

[Brief explanation of the drawing]

Fig. 1 is a side view of a riding rice transplanter showing an embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is a partial explanatory view of the planting section, and Fig. 4 is a longitudinal sectional view of the seedling stand. , FIG. 5 is a partial sectional view of the same, FIG. 6 is a partial explanatory view of the planting clutch lever, and FIG. 7 is a block diagram for detecting the vertical feed amount of pine seedlings. 18... Seedling stand, 51... Vertical feed amount sensor, 7
1,91...Counter (vertical feed amount confirmation device), 7
2...NAND circuit (confirmation regulation device).

Claims (1)

[Scope of utility model registration request] It is equipped with a vertical feed amount confirmation device that counts the vertical feed amount of the seedlings on the seedling platform via a vertical feed amount sensor installed on the seedling platform to detect the vertical feed amount of the seedlings on the top surface. A seedling usage amount detection device for a rice transplanter, characterized in that it is configured to include a confirmation regulating device that detects a feeding operation and operates the vertical feed confirmation device during vertical feeding of the seedlings.