JPS6327564Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a device for supplying bed soil and covering soil to a seedling nursery box.

In conventional devices of this type, a conveyor in which a belt is mounted between cylindrical rotating rolls is exposed to the hopper supply port, and this type of device has a major drawback.

One of the reasons is that the belt moves extremely smoothly, so that soil adhering to the surface of the belt does not fall off and remains as it is. This adhered soil gradually grows and becomes larger, and the soil is not supplied to the seedling box as an equalizing layer, resulting in uneven lines being formed on the soil supplied into the seedling box. There is a drawback that even if the operation is performed, the streaks do not disappear, resulting in uneven seeding, and for this reason, with conventional devices, it is necessary to remove the soil adhering to the belt.

Another drawback is that when there is a lump of soil in the hopper, because the movement of conventional conveyor belts is smooth, this lump can get stuck near the soil supply amount control valve, resulting in the soil supply layer being similar to the above. There may be unevenness in size.

For this reason, in the past, a diaphragm or the like was built into the hopper to prevent the lumps from stagnation through vibration, but the provision of the diaphragm structure within the hopper itself constitutes a device. This makes the process complicated and expensive, which is not at all desirable.

The present invention was developed in response to these circumstances, and eliminates the above-mentioned drawbacks of the conventional conveyor by constantly imparting a vibration effect to the conveyor itself, without incorporating a special vibrating structure into the hopper as in the past. This aims to improve the average supply efficiency of bed soil and covering soil and reduce costs.

To explain the details of the embodiment with reference to the drawings, reference numeral 1 denotes a transporter for a seedling box that is pivoted on a horizontal machine frame (not particularly shown), and a machine frame (not shown) is placed on the middle part of the transporter 1. A hopper 3 for bed soil or covering soil 2 supported by a hopper 3 is provided.

A is a belt conveyor for supplying soil facing the lower part of the supply port 4 of the hopper 3, and this belt conveyor A has two parallel polygonal rotating rolls 5 and 6 that correspond to each other, and both rotating rolls 5, It is composed of a belt 7 which is suspended between two belts 6 and 6.

One rotating roll 5 is pivotally supported by a support rod (not shown) attached to the mechanism of the conveying body, and this shaft support is provided with a transmission mechanism for transmitting power.

The end of the shaft 8 of the other rotary roll 6 is mounted so as to be movable in the horizontal direction with respect to a support rod (not shown), and ball bearings 9 are provided at both ends of the shaft 8, respectively. Both ball bearings 9
One end of a spring 10 for tensioning the belt is connected to each of the belts.

Further, the other end of this spring 10 is provided with an adjustment bolt 11, respectively.
It is connected to the support rod 12 via. That is, the end of the adjustment bolt 11 is inserted into and supported by the support rod 12, and
Attach nut 1 to the adjustment bolt 11 protruding from 2.
By screwing the belts 3 together, the belt 7 is given the required tension.

In the above embodiment, polygonal double rotating rolls 5, 6
Although a hexagonal shape is shown as an example, the shape may be any shape such as pentagonal or octagonal, and in short, any shape is acceptable as long as vertical vibration is applied to the belt 7.

In addition, by setting the angle so that when the plane part of one rotating roll 5 is in an upward state as shown in the figure, the angle of the other rotating roll 6 is in an upward state, the belt can be rotated as shown by the imaginary line in FIG. The upper surface of belt 7 can be vibrated in a fine seesaw-like manner, and if the flat parts or corner parts of both rotating rolls 5 and 6 are positioned upward at the same time, belt 7 can be
It is possible to vibrate up and down while keeping the top surface horizontal.

Furthermore, by making only the rotary roll 5 located on the falling soil supply side polygonal and the other a normal cylindrical shape, the present invention can be applied even if only the belt 7 near the soil supply side is vibrated up and down. Since the purpose is achieved, it is not limited to the examples. In the figure, 14 is a control valve provided on the side of the hopper so as to be able to move up and down, and 15 is a seedling box.

Since the present invention is configured as described above, the conveyor belt is constantly vibrated by the action of the polygonal rotating rolls, and this vibration is propagated to the bed soil or covering soil in the hopper, thereby facilitating the supply of soil. can do.

In addition, if the soil contains lumps, the vibration action allows the lumps to be immediately released to the outside without being stagnated near the control valve, thus eliminating the uneven supply of soil unlike in the past. It has great practical effects, such as increasing the leveling and suppressing effects of post-processing, and can also contribute to improving uniform sowing efficiency.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view, and FIG. 2 is a partially cutaway front view of the main part. 1... Conveyor, 3... Hopper, 4... Supply port, 5, 6... Polygonal rotating roll, 7... Belt.

Claims (1)

[Scope of utility model registration request] A device in which a belt conveyor for soil supply is arranged in a supply port formed at the bottom of a hopper, a seedling box conveyor is provided below the belt conveyor, and the bed soil or covering soil in the hopper is supplied to the seedling boxes. , A device for supplying bed soil and covering soil to a seedling nursery box, characterized in that a rotary roll located at least on the falling soil supply side of the soil supply belt conveyor is configured in a polygonal shape.