JPS6232883B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention provides a method for combining a plurality of stacked paddy rice seedling boxes into one
This invention relates to an automatic feeding device for seedling boxes that feeds seedlings one by one.

Conventionally, when placing seedling boxes one after another on a conveyor and sequentially filling the boxes with soil, spreading fertilizer, sowing seeds, cleaning, etc., it was necessary to manually load the seedling boxes one by one onto the conveyor. As a result, there was a drawback that not only was a considerable burden of labor placed on the workers, but the work efficiency was also poor. Attempts have been made to mechanize the system, but the problem still remains that it does not operate reliably or smoothly.

This invention was made to solve the drawbacks of the conventional work, and involves lifting and tilting the front end of the second row of seedling boxes from the bottom of stacked seedling boxes, and then moving the bottom row of seedling boxes. In an automatic feeder for a seedling box that is pushed out by a piece, the lowermost seedling is pushed out when the lifting rod that supports the front end of the second-tier seedling box from the bottom is prevented from descending by a swinging column that stands upright on the board. It is designed to send out boxes.

Embodiments of the present invention will be described based on the drawings. 1
A and 1b are left and right guide rails of the feeding device made of L-shaped steel. 2, 2 is a long holding column of the feeding device, which is made of L-shaped steel and supports one side of the seedling boxes A, ..., A and each corner A of the front and rear ends thereof.
1, the lower end is bolted to the guide rail 1b on one side so as to hold A1. Reference numerals 3 and 3 indicate short holding columns of the feeding device, which are made of L-shaped steel and are attached to the guide rail 1a on the other side in correspondence with the long holding columns 2, 2 on the other side of the seedling boxes A, ..., A and the corners before and after them. It is erected to hold the Therefore, the seedling boxes A, . . . , A can be easily loaded and stacked from the short holding columns 3, 3 side. In addition, the lowermost seedling box A is placed at the front lower end of both long and short holding columns 2 and 3.
A notch 4 is provided to allow only the material to pass through. 5 is the horizontal axis, in front of the stacked seedling boxes A,...,A,
The guide rails 1a, 1b are horizontally supported rotatably through bearings, and an auxiliary shaft is connected to the rear of the horizontal shaft 5 via a plurality of connecting pieces 6,..., 6 in parallel with the horizontal shaft 5. 7 is provided.

9, 9 are lifting rods fixed to the horizontal shaft 5 with a reinforcing plate 8, and the lifting rods 9, 9 have a protruding portion 9a that is hooked on the upper edge A3 of the seedling box A in the second stage from the bottom. , 9a, and is arranged at the rear of the horizontal axis 5.

Reference numeral 10 denotes a rear downward arm fixed to the horizontal shaft 5 via connecting pieces 6, .

Reference numeral 12 denotes a swinging column whose upper part is swingably supported on the auxiliary shaft 7. When the lifting rods 9, 9 are lifting up the seedling box A in the second stage from the bottom, the swinging column 12 is attached to the substrate. It is configured to stand upright on 11.

21 is stretched between the horizontal shaft 5 and the substrate 11, and constantly urges the lifting rods 9, 9 downward with a spring.

13 is a cam-shaped rotating plate provided below the horizontal shaft 5;
4 so as to be rotatable in the horizontal direction, and is always urged forward on the inside by a coil spring 15.

16 is a movable piece with a push rod 16a protruding from one side;
It is fixed to an endless conveyor 18 that moves along the center portions of left and right guide rails 17a and 17b.

When the power is turned on, power is transmitted to the endless conveyor 18 via a drive device (not shown) and a power transmission device 19, and the movable piece 16 moves along with the endless conveyor 18 as shown by arrow B. The push rod 16a of the advancing moving piece 16 first contacts the abutment piece 13a of the rotating plate 13 as shown in FIG. It rotates like that. While rotating, the rotating plate 13 pushes the lower end of the swinging column 12 standing upright on the base plate 11 in the advancing direction, thereby tilting the swinging column 12 as shown in FIG.

The lifting rods 9, 9, which had been prevented from rotating downward by the upright swinging column 12, are pulled downward by the spring 21 and tilted downward to form the seedling raising box A, which is the lowest stage. is unlatched, and the seedling raising box A falls onto the guide rails 1a and 1b. As the moving piece 16 advances further, the push rod 16a and the rotating plate 13 are disengaged, and the rotating plate 13 is pulled forward by the coil spring 15, as shown in FIG.

However, the rotating plate 13 returns to its original position by the stopper 20 erected on the base plate 11 and does not move forward any further. The moving piece 16 further advances and comes into contact with the arm 10 attached to the auxiliary shaft 7 by the push rod 16a, and is pushed up. Then, the lifting rods 9, 9 rotate upward in conjunction with the arm 10, and lift up the second seedling growing box A from the bottom. At this time, the connecting pieces 6, . (See Figure 7).

Therefore, when the moving piece 16 moves further, the push rod 16
a comes off from the arm 10, and at that time the lifting rods 9, 9
tries to rotate downward due to the weight of seedling box A, but
Since the suspended swinging column 12 stands upright on the base plate 11, it does not descend any further. As shown in Figure 8, the lifting rods 9 and 9 are in the seedling box A in the second row from the bottom.
In the lifted state, the movable piece 16 contacts the front end of the seedling raising box A at the lowest stage.

In this state, the lowermost seedling growing box A is released from the excessive static friction force caused by the stacked seedling growing boxes A, ..., A by the swinging column 12, so that only the lowermost seedling growing box A is moved by the movable piece 16. It easily passes through the notch 4 and is pushed out in front of both the holding columns 2 and 3.

Of course, the seedling growing boxes A on the second and higher stages from the bottom are not prevented from moving forward by the holding columns 2 and 3 and are not pushed out, nor are they collapsed by the holding columns 2 and 3.

As described above, the automatic feeding device for seedling raising boxes according to the present invention is configured to push out the lowermost seedling raising box by the movable piece while lifting and tilting the front end of the second stage of seedling raising boxes from the bottom of stacked seedling raising boxes. In the automatic seedling box feeding device, a conveyor 18 is arranged along the center of the left and right guide rails 17a, 17b, and the moving piece 1 has a push rod 16a protruding from one side surface.
6 is fixed to the conveyor 18, a horizontal shaft 5 is rotatably horizontally suspended in front of the seedling raising box, and a lifting rod 9 extends rearward from the horizontal shaft 5 and hooks onto the second seedling raising box from the bottom. is fixed to the horizontal shaft 5, and provided so that the auxiliary shaft 7, which is parallel to the horizontal shaft 5 and integrally connected to the horizontal shaft 5, is located below and outside the lifting rod 9 and on the push rod 16a side of the movable piece. , a rear downward arm 10 facing the movement locus of the push rod 16a of the movable piece is fixed near the lifting rod 9 of the auxiliary shaft 7, and attached to a vertical shaft 14 erected on a fixed base plate 11 at the lower front position of the auxiliary shaft 7. The horizontal pivot plate 13 is rotatably supported, and the inner side of the pivot plate 13 is always urged forward, and when the pivot plate 13 is in the forward position, the inner front end of the pivot plate 13 acts as a movable push rod. 1
The lower end of the swinging column 12, which is constructed so as to appear in the movement trajectory of the slider 6a and whose upper portion is pivoted on the reinforcing shaft 7, is connected to the swinging plate 13.
The device is characterized in that it is placed on the substrate 11 so as to face the movement trajectory of the substrate.

According to this invention, it is possible to automatically send a large number of stacked seedling boxes one by one onto a belt conveyor one by one without manual intervention, thereby reducing human labor and improving work efficiency. It is something.

According to this invention, when the lowest seedling growing box A is being sent out, the second seedling growing box A is lifted by the lifting rod 9 supported by the swinging column 12. The seedling growing box A on the bottom row is freed from the excessive static friction force of the stacked seedling growing boxes and can be sent out smoothly.

Furthermore, when the lowermost seedling raising box A is sent out from the notch 4, the second raising seedling box A tilts from the lifted front end toward the rear end on the notch 4 side.
If the holding columns 2 and 3 are attached to the guide rails 1a and 1b with a slight inclination, the followability of the seedling box will be improved.

In order to make it easier for the protrusions 9a, 9a of the lifting rods 9, 9 to follow the upper edge A3 of the seedling box A, it is very convenient to support them elastically using the coil springs 22.

[Brief explanation of the drawing]

The drawings are for explaining the automatic feeding device for a seedling box according to the present invention, and FIG. 1 is an overall side view;
Fig. 2 is a plan view of Fig. 1, Figs. 3 and 4 are plan views of the main parts, Fig. 5 is a front view of the main parts, and Figs. 6 to 8 are the main parts showing the operating state. FIG. 1a, 1b...Guide rail, 5...Horizontal axis, 6,
..., 6... Connection piece, 7... Auxiliary shaft, 9, 9... Lifting rod,
10... Arm, 11... Board, 12... Swing column, 13
...Swivel plate, 14...Vertical shaft, 15...Coil spring, 1
6... Moving piece, 16a... Push rod, 17a, 17b... Guide rail, 18... Endless conveyor, 21...
Spring, 22... Coil spring, A,..., A... Seedling box, A3... Upper edge.

Claims (1)

[Claims] 1 In an automatic seedling box feeding device that pushes out the bottommost seedling box with a moving piece while lifting and tilting the front end of the second tier of seedling growing boxes from the bottom of stacked seedling boxes, the left and right guide rails 17a , 17b, and the moving piece 16 has a push rod 16a protruding from one side surface.
is fixed to the conveyor 18, a horizontal shaft 5 is rotatably suspended horizontally in front of the seedling raising box, and a lifting rod 9 extends rearward from the horizontal shaft 5 and hooks onto the second seedling raising box from the bottom. An auxiliary shaft 7 fixedly fixed to the horizontal shaft 5, parallel to the horizontal shaft 5, and integrally connected to the horizontal shaft 5 is provided so as to be located below and outside the lifting rod 9 and on the push rod 16a side of the movable piece; A rear downward arm 10 facing the movement locus of the push rod 16a of the movable piece is fixed near the lifting rod 9 of the auxiliary shaft 7, and is horizontal to the vertical shaft 14 erected on the fixed base plate 11 at the lower front position of the auxiliary shaft 7. The rotating plate 13 is rotatably supported, and the inner side of the rotating plate 13 is always urged forward, and when the rotating plate 13 is in the forward position, the inner front end of the rotating plate 13 is moved by a push rod 16 that is a movable piece.
The structure is characterized in that a swinging column 12 is configured so as to face the movement locus of a, and its upper part is pivoted to a reinforcing shaft 7, and the lower end of the swinging column 12 is placed on the base plate 11 so as to face the movement locus of the rotating plate 13. Automatic feeding device for seedling boxes.