JPH0622U - Rice transplanter spare seedling stand - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain means for automatically supplying seedling mats to the seedling table of rice transplanters. [Structure] The seedling mat supplied in front of the rice transplanter is conveyed to the rear of the machine by a vertical feed conveyor, and the seedling mat is laterally conveyed by a horizontal feed conveyor to supply the seedling mat to each row of the planting section. ..

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a preliminary seedling stand for a rice transplanter.

[0002]

[Prior art]

 For seedling splicing in a conventional rice transplanter, a seedling splicing sensor is installed on the seedling mounting table, and when the seedling matting table is almost exhausted, the seedling splicing sensor detects and sounds an alarm, and the operator notices the alarm. Is supplying seedling mats to the seedling table.

[0003]

[Problems to be solved by the device]

 However, it is difficult for each operator to supply seedling mats to the seedling mounting table, which may disturb the handling. Therefore, the purpose of this plan is to obtain a means for automatically supplying seedling mats to the seedling table of the rice transplanter.

[0004]

[Means for Solving the Problems]

 Therefore, a vertical feed conveyor that conveys the seedling mats supplied in front of the rice transplanter to the rear of the machine is provided, and the seedling mats conveyed by the vertical feed conveyor are arranged in the rear of the machine to each row position of the planting section. A horizontal feed conveyor was installed for lateral transport.

[0005]

[Action]

 The seedling mat supplied in front of the rice transplanter is conveyed to the rear of the machine by a vertical conveyor. Then, the seedling mats conveyed by the vertical feed conveyor are laterally conveyed by the horizontal feed conveyor and the seedling mats are supplied to each row of the planting section.

[0006]

Embodiments Embodiments of the present invention will be described below. 1 and 2 are a side view and a plan view of the rice transplanter. A driver's seat 4 is located in the center of an airframe 3 having front wheels 1 and rear wheels 2, and a steering 5 and a hood 6 are located in front of the driver's seat 4. Vertical feed conveyors 7 and 7 are provided above and to the left and right of the machine body 3, and horizontal feed conveyors 8 and 8 are provided to the rear of the machine body 3. The vertical feed conveyor 7 includes a case 11 which is swingably supported about a shaft 10, front and rear driven rollers 12 and 13 arranged in the case 11, and wound around these driven rollers 12 and 13. The endless belt 14 is formed. The tip of a piston rod 16 of a cylinder 15 attached to the machine body 3 is connected to the lower surface of the case 11, and as the cylinder 15 expands and contracts, the entire vertical feed conveyor 7 swings up and down around a shaft 10. Then, it descends to the position shown by the one-dot chain line 7'in FIG. The lateral feed conveyor 8 is composed of a drive roller 17 and a driven roller 18 arranged at the rear of the machine body 3, and an endless belt 19 wound around these rollers 17, 18. The lateral feed conveyor 8 is provided so as to be inclined rearward and downward as a whole. The drive roller 17 is driven by a stepping motor (not shown).

A planting section 20 is connected to the rear of the machine body 3. Reference numeral 21 denotes a seedling mounting table, and a planting device 22 and a float 23 are provided below the seedling mounting table 21. Ribs 24 are erected on the upper surface of the seedling placing table 21, and the planting device 22 at the lower end position of each strip partitioned by the ribs 24 carries out the planting work. Further, as shown in FIG. 3, a stopper 26 that rotates about an axis 25 is provided at the upper end of the seedling mounting table 21, and the extension operation of the cylinder 27 mounted on the lower surface of the upper end of the seedling mounting table 21 is performed. The stopper 26 is adapted to be retracted to the position shown by the chain line 26 '. Then, a window hole 30 formed substantially in the center of the seedling placing table 21 is pivotally supported on the lower surface of the seedling placing table 21 and urged by a spring (not shown) so as to constantly project upward from the window hole 30. A micro switch 33 is provided below the link 32. The micro switch 33 detects that the link 32 is pushed down against the spring. When the seedling mat remains on the seedling table 21, the link 32 is pushed down against the spring by the weight of the seedling mat, the micro switch 33 is turned on, and the seedling table 21 still has the seedling mat. Is understood. In addition, at the lower end of the seedling table 21, there is a vertical seedling feeding belt 35 for sequentially supplying seedling mats.

Then, the rice transplanter as described above is stopped at the edge of the ridge, and the vertical feed conveyor 7 is lowered to the position shown by the alternate long and short dash line 7'in FIG. 1 to supply the seedling mat a from the front. In this case, since the seedling mat a can be supplied to the vertical feed conveyor 7 at the lower position, the worker does not need to lift the seedling mat a one by one and can perform seedling supply work without labor. . When the seedling mat a is supplied from the edge in this way, the cylinder 1 is extended to raise the vertical feed conveyor 7 about the shaft 10, and the vertical feed conveyor 7 is lifted to the position shown by the solid line in FIG. Then, the endless belt 14 circulates by the own weight of the seedling mat a, and the seedling mat a is supplied onto the transverse feed conveyor 8 behind the machine body 3. When the seedling mat a is supplied onto the lateral feed conveyor 8 in this way, a stepping motor (not shown) operates to intermittently rotate the endless belt 19, and the seedling mat a is partitioned by the ribs 24 of the seedling mounting table 21. The paper is conveyed above each line and stopped. When the seedling mat a is conveyed above the seedling mounting table 21 in this way, the cylinder 27 mounted on the lower surface of the upper end of the seedling mounting table 21 of that row is extended and the stopper 26 is shown by the alternate long and short dash line 26 'in FIG. Retracted position. As a result, the seedling mat a, which has slid backward due to the inclination of the lateral feed conveyor 8, is supplied so as to slide into the seedling table 21. As described above, the seedling mat a is supplied to each row of the seedling placing table 21, and a spare seedling mat a is fully loaded on the vertical feeding conveyor 7 and the horizontal feeding conveyor 8 to be placed in the field and the machine 3 The seedlings are planted in the planting section 20 while running.

When the seedling mat a remains on the seedling mounting table 21, the weight of the seedling mat a pushes down the link 32 against the spring to turn on the micro switch 33. However, as the rice planting progresses, When the seedling mat a remains less and there is no seedling mat a on the link 32, the link 32 projects upward from the window hole 30 by the force of the spring, and the micro switch 33 is turned off. When the micro switch 33 is turned off, the cylinder 27 attached to the lower surface of the upper end of the seedling table 21 of that row is extended and the stopper 26 is retracted to the position shown by the one-dot chain line 26 'in FIG. As a result, the seedling mat a is slid into the seedling mounting table 21 by the inclination of the lateral feed conveyor 8, and the rice planting work is continuously performed without causing seedling breakage. Further, the endless belt 19 of the lateral feed conveyor 8 intermittently circulates to make the next seedling mat a 1 stand by again. The seedling mat a is sequentially supplied from the vertical feed conveyor 7 to the horizontal feed conveyor 8 by its own weight. Therefore, except for the operation of supplying the seedling mat a from the edge, the other operations are automatically performed, so that the operation of connecting the seedlings to the seedling mounting table 21 is extremely easy. Also, in the work of supplying the seedling mat a from the edge, since the vertical feeding conveyor 7 can be temporarily lowered and the seedling mat a can be supplied at a low position, the worker does not need to lift the seedling mat a one by one, and labor is required. It becomes possible to carry out seedling supply work without doing so. Therefore, the work efficiency can be improved.

FIG. 4 shows a means in which a conveyor 41 driven by a motor 40 is arranged on both sides of the rice transplanter, and a front sensor 42 and a rear sensor 43 are provided in front of and behind the conveyor 41. In the above rice transplanter, when the seedling mat a is supplied to the conveyor 41 from the front, the front sensor 42 is turned on, the conveyor 41 intermittently circulates by the length of the seedling mat a, and stops again. In this way, when four seedling mats a in total are supplied to the conveyor 41 and the rear sensor 43 is turned ON, the automatic rotation of the conveyor 41 due to the ON of the front sensor 42 is stopped. Then, when the operator takes the seedling mat a from the rear end side of the conveyor 41 and supplies the seedling mat a to the seedling placing table 21, the rear sensor 43 is turned off again and the conveyor 41 is automatically turned on when the front sensor 42 is turned on. Circulation is restarted. According to this means, if the seedling mat a is supplied only to the front end of the conveyor 41 at the edge of the ridge, the seedling mat a is automatically fed thereafter, so that the seedling supply work is easy. Further, if the operator takes the seedling mat a from the rear end side of the conveyor 41, the next seedling mat a is sequentially sent, so that the seedling joining work to the seedling placing table 21 becomes smooth. The motor 40 may be a stepping motor so that the seedling mat a can be moved intermittently.

FIG. 5 shows a means in which a rotary-type spare seedling stand 50 is provided above the driver's seat 4. A spare seedling mount 50 is provided on the upper end of a frame 52 attached to a shaft 51 on the side of the machine body 3, and the rotation of the shaft 51 causes the front end of the spare seedling mount 50 to come to the front of the hood 6 and a spare position. The spare seedling mounting table 50 is configured to rotate between the positions where the rear end of the seedling mounting table 50 reaches just before the seedling mounting table 21. According to this means, since the spare seedling mounting table itself is moved, there is no need to move the seedling mat on the spare seedling mounting base, which is convenient. In addition, since it is possible to install a spare seedling stand on the entire width of the rice transplanter, it is possible to stack a large number of seedling mats. Also, the seedling mat can be supplied easily because the preliminary seedling stand can be moved to the front of the bonnet. Furthermore, by moving the spare seedling stand above the driver's seat 4, it can also serve as an awning.

FIGS. 6 and 7 show a four-node parallel link in which a spare seedling stand 60 provided above the driver's seat 4 is supported by two links 61 and 62 pivotally attached to the side of the machine body 3. It shows the measures taken. A cylinder 63 is attached to the lower end of the link 62, and the expansion and contraction operation of the cylinder 63 causes the preliminary seedling mounting table 60 to move between the position in front of the bonnet 6 and the position in front of the seedling mounting table 21. It is configured to move. This means also eliminates the need to move the seedling mats on the preliminary seedling mounting table as in the case of the means shown in FIG. 5, and allows the seedling mats to be stacked in a large amount, and the seedling mats can be supplied. Easy to do and convenient. Then, the position of the preliminary seedling mounting table 60 can be moved and adjusted to balance the rice planter in the front and rear. The link may be moved manually.

Further, when the spare seedling mount 70 is provided above the driver's seat 4, there is a concern that the seedling drops may drop from the spare seedling mount 70 due to the water content of the seedling mat, as shown in FIG. If such droplets fall on the entire rice transplanter, the operator will get wet, and it will be difficult to see the area in front of the operator. Therefore, as shown in FIG. 9, by forming the gutters 71 on both sides of the preliminary seedling mounting table 70 and determining the flow path of the water exuding from the seedling mat a, the droplets of the seedlings drop on the operator. No worries, easy to operate and convenient.

[0014]

[Effect of device]

 As described above, in the preliminary seedling mounting table of the present invention, the seedling mat supplied in front of the rice transplanter is conveyed by the vertical feed conveyor and the horizontal feed conveyor to easily supply the seedling mat to each row of the planting section. As a result, it is extremely easy to connect seedlings to the seedling mounting table. In addition, seedling mats can be easily supplied from the edge of the ridge, and work efficiency can be improved.

[Brief description of drawings]

[Figure 1] Side view of rice transplanter

[Figure 2] Plan view of rice transplanter

FIG. 3 is a side view of the planting part.

FIG. 4 is a plan view of a rice transplanter equipped with a motor-driven conveyor.

[Fig. 5] Side view of the rice transplanter equipped with a rotatable spare seedling stand

FIG. 6 is a side view of a rice transplanter equipped with a preliminary seedling stand supported by four-section parallel links.

[Fig.7] Plan view of Doda Planter

[Fig. 8] Side view of a rice transplanter with a spare seedling stand above the driver's seat

9 is a sectional view taken along line AA of FIG.

[Explanation of symbols]

 3 Machine 7 Vertical conveyor 8 Horizontal conveyor 20 Planting part a Seedling mat

Claims (1)

[Scope of utility model registration request] 1. A vertical feed conveyer for feeding the seedling mat supplied in front of the rice transplanter to the rear of the machine, and the seedling mat conveyed by the vertical feed conveyor is provided in each section of the planting section at the rear of the machine. A preliminary seeding stand for rice transplanters equipped with a horizontal feed conveyor that conveys laterally to the position.