JPH0779572B2 - Seeding device for seedling box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a seeding device for a row-sprouting-switching type nursery box.

(Prior Art) In the conventionally known Japanese Patent Laid-Open No. 63-133907, in a device in which a seed feeding device is provided on a transfer table of a seedling raising box, the seed supplying device is moved up and down with respect to the transfer table, and seeding is performed. It describes that it can be switched to row seeding.

(Problems to be Solved by the Invention) In the known device, the seed feeding device moves up and down with respect to the transfer table so that switching between sowing and row sowing can be performed. Because it will be done according to
There is a problem in that it requires a space and is complicated in structure and difficult to adjust.

(Purpose of the Invention) To obtain a simple and inexpensive seeding device for a row-sowing / switching type nursery box.

(Means for Solving the Problem) Therefore, according to the present invention, the lateral feeding table 15 for laterally feeding the nursery box 8 is provided.
In the seeding device having the seed feeding device 1 provided above, the horizontal feeding / transferring base 15 has a pair of left and right rear turning arms 18, 18 'by a horizontal shaft 26, 26' in the left and right direction and a horizontal lateral direction in the left and right direction. Axis 27, 2
The pair of left and right front rotating arms 19, 19 'are axially stopped by 7', and the rear rotating arms 18, 18 'and the front rotating arms 19, 19' are the same as the rear rotating arm 18 '. Arcuate front gears 23 and 23 'formed at the front ends of the rear side rotation arms
Arc-shaped rear gears 25, 25 'formed at the rear ends of 19, 19' are provided in mesh with each other, and the rear side of the rear side rotation arms 18, 18 'are provided with a rear side connecting rod 20 for the front side rotation arm 19. , 19 'are connected to each other by front connecting rods 21, and the seed feeding device 1 is attached to the rear connecting rods 20 and the front connecting rods 21, and the rear rotating arms 18, 18' and the front side are connected. The seed feeding device 1 is a sowing device for a row-sowing / switching-type seedling-growing box, which is configured to move up and down when the rotating arms 19 and 19 'rotate.

Further, in the seedling raising seedling device, one of the front side rotating arms 19, 19 'and the rear side rotating arms 18, 18' is provided with a height fine movement adjusting mechanism 45, and a row seeding sowing type can be used. It is a box seeding device.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings, in which 1 is a seed feeding device, and a seed feeding hopper 2 is provided on the upper front side of the seed feeding device 1. Reference numerals 3 and 4 denote grain flow plates under the seed supply hopper 2, 5 a supply port, 6 a supply amount adjusting plate of a supply amount adjusting device 7, and 9 a horizontal axis feeding roll.

On the outer peripheral surface of the horizontal axis feeding roll 9, a horizontal groove-shaped feeding concave portion 10 parallel to the generatrix direction is formed over the entire circumference at desired intervals. The feeding concave portion 10 is formed to have a width in which the seeds fit laterally in one row.

On the outer peripheral surface of the horizontal axis feeding roll 9, slits 11 are provided on the entire circumference in the left-right direction at intervals shorter than the lateral width of one seed. The slits 11 are formed to have the same depth as or slightly deeper than the feeding recesses 10, and a scraping knife 12 is fitted into each slit 11.

A second rotary leveling brush 13 is provided substantially above the horizontal axis feeding roll 9, and a first leveling brush 14 is provided between the second leveling brush 13 and the supply port 5.

Then, the seed feeding device 1 is mounted so that the height position thereof can be adjusted with respect to the horizontal feeding transfer table 15 that laterally feeds the seedling raising box 8 forward. That is, when the seed feeding device 1 is used for row seeding in which the entire seed feeding device 1 is located at the upper position and the seed feeding device 1 is used for sowing in the lower position, the height position can be switched, and The height adjusting mechanism 45 described later is attached so that it can be finely adjusted so that it can be used even in the nursery boxes 8 of various heights.

That is, the transfer table 15 on which the seed feeder 1 is arranged is provided with left and right support frames 16 and 16 ', and the left and right support frames 1 and
A vertical up-and-down moving mechanism 17 for switching between row sowing and sowing is provided between 6, 16 'and the seed feeding device 1.

The vertical up-and-down moving mechanism 17 includes a pair of left and right rear left and right rotating arms 1.
8, 18 'and a pair of left and right front rotation arms 19, 19'
And a rear connecting rod 20 in the left-right direction connecting the rear ends of the rear rotating arms 18 and 18 'and a front connecting rod 21 connecting the front ends of the front and rear rotating arms 19 and 19'. .

The front side of the rear-side rotating arms 18, 18 'is formed into an arc-shaped arc-shaped rear portion 22, and rear gears 23, 23' are formed on the outer peripheral surfaces of the arc-shaped rear portions 22, 22 '.

The front rotation arm 19, 19 ′ is the rear rotation arm 1
Front gears 25, 25 'are formed on the outer peripheral surfaces of the arcuate front portions 24, 24' in a symmetrical shape with 8, 18 '.

The rear gears 23, 23 'and the front gears 25, 25' of the bases of the rear rotation arms 18, 18 'and the front rotation arms 19, 19' are engaged with the left and right support frames 16, 16 'so as to mesh with each other. The front and rear horizontal shafts 26 and 27 are pivotally fixed.

The left and right ends of the rear connecting rod 20 are the seed feeding device 1
Of the left and right side plates 28, 28 'are axially attached to the horizontally elongated holes provided at the lower front side, and the protrusions protruding from the left and right side plates 28, 28' are engaged with the rear end sides of the left and right rear side rotation arms 18, 18 '. Let

The left and right ends of the front connecting rod 21 are axially attached to the horizontally elongated holes at the lower front side of the left and right side plates 28, 28 ', and the front turning arms 19, 19' are attached to the protrusions protruding from the left and right side plates 28, 28 '. Engage the front end.

When the rear connecting rod 20 is moved upward, the vertical vertical movement mechanism 17 causes the rear rotating arms 18, 18 'to rotate upward about the horizontal shafts 26, 26', so that the rear rotating arms 18, 18 'rear gear 23, 23'
Rotates the front ends of the front rotating arms 19, 19 'upward through the front gears 25, 25' of the front rotating arms 19, 19 ', so that the front connecting rods 21 of the front rotating arms 19, 19' are connected. The rear connecting rod 20 is moved up to the same height.

When the seed feeding device 1 is provided with a stripping roll 31 on the rear side and the seed feeding device 1 is provided with a compression roll 32 on the front side, the stripping roll 31 and the compression roll 32 are moved upward when used for sowing. When used for row sowing, the row seeding guide 30 is attached below the horizontal axis feeding roll 9, and the row roll 31 and the pressure suppression roll 32 are positioned at a height at which they contact the upper surface of the floor soil 42 in the seedling raising box 8. Let

Then, the vertical up-and-down moving mechanism 17 can move the seed feeding device 1 upward by moving either the rear connecting rod 20 or the front connecting rod 21, but the rear connecting rod 20 or the front connecting rod 20 can move upward. If the left and right ends of the connecting rod 21 do not move up at the same time, the seed feeding device 1 moves up diagonally on the left and right sides. Therefore, the vertical up-and-down moving mechanism 17 is provided with an operating lever 33.

The operation lever 33 has a pair of arm portions 34 at both left and right ends thereof and is formed in a U-shape when viewed from above. The tip of the arm portion 34 has the tip of the left and right rear rotation arms 18, 18 ′ or the front rotation arm. Moving arm
Fix at the tip of either 19 or 19 '.

The left and right rear rotation arms 18, 18 'and the front rotation arm 1
The rear connecting rod 20 and the front connecting rod 21 of the tips of 9 and 19 'both move in an arc around the horizontal shafts 26 and 26' and the horizontal shafts 27 and 27 '. One of 27 and 27 'is inserted by inserting it into a long hole formed in the side plate 28.

Further, in the embodiment shown in FIG. 4, since the front and rear sides of the seed feeding device 1 are moved vertically in the horizontal state, the left and right rear rotation arms 18,
The rear gears 23, 23 'of the 18' and the front gears 25, 25 'of the front rotating arms 19, 19' are formed asymmetrically, and the left and right rear rotating arms 18,
When the 18 'and the front rotating arms 19, 19' are in a horizontal state, the rear gear is placed on the line connecting the rear connecting rod 20, the horizontal shafts 26, 26 ', the horizontal shafts 27, 27', and the front connecting rod 21. 23, 23 'addendum 35 and front gear
The bottoms 36 of 25 and 25 'are positioned so that they are engaged with each other.

Thus, the height adjusting mechanism 45 pivotally attaches the front end of the arm 46 to each of both ends of the rear connecting rod 20, and attaches the engaging shaft 47 provided at the rear end of the arm 46 to the left and right support frames 16, It is engaged with either the seeding engagement groove group 48 or the row seeding engagement groove group 49 formed in the rear portion of 16 '. The seeding engagement groove group 48 holds the height of the seed supply device 1 for seeding, and the row seedling engagement groove group 49.
Hold for row sowing. At the lowermost position for sowing, the engaging shaft 47 does not engage with any of the above, and the front connecting rod is not engaged.
21 engages with the upper surfaces of the left and right support frames 16, 16 'to support the seed feeder 1.

Reference numeral 40 denotes a seed guide cover provided on the side surface of the horizontal axis feeding roll 9, which guides the seed fitted in the feeding recess 10 from the upper position to the lower position without damaging the seed. 41 is a sponge provided inside the seed guide bar 40, and 43 is a groove formed on the upper surface of the soil 42.

(Operation) Next, the operation will be described.

In the case of sowing, the seed feeding device includes the left and right support frames 1 for the seed feeding device 1.
It is attached to 6, 16 'through a vertical vertical movement mechanism 17. When the engaging shaft 47 at the tip of the arm 46 of the height adjusting mechanism 45 of the seed feeding device 1 is removed from the engaging groove groups 48, 49, the seed feeding device 1 descends due to its own weight, and the rear connecting rod 20 and the front connecting rod are connected. The rod 21 is lowered, and the left and right rear rotation arms 18, 18 'and the left and right front rotation arms
Since 19 and 19 'rotate downward about the horizontal shafts 26 and 26' and the horizontal shafts 27 and 27 ', the seed feeding device 1 is moved downward with respect to the horizontal feeding transfer table 15 to a low sowing height. , The engaging shaft 47 of the height adjusting mechanism 45 is engaged with and fixed to any suitable one of the seeding engaging groove groups 48.

In this state, when the seeds are put into the seed supply hopper 2 and the seedling raising box 8 to which the bed soil 42 is supplied is transferred by the lateral transfer table 15, the seeds in the seed supply hopper 2 flow down on the sling board 4. From the supply port 5 into the feeding recessed portion 10 of the horizontal axis feeding roll 9, and is raised by the rotation of the horizontal axis feeding roll 9, and most of the excess seed that rotates together with the horizontal axis feeding roll 9 is first flattened brush.
It is swept back by 14 and the feeding recess 10 by the second leveling brush 13.
The seeds in a horizontal row are fitted to the seeds, and the seeds fitted in the feeding recesses 10 are guided to the lower side by the seed guiding cover 40, fall downward at the lowest point, and are sown in the seedling raising box 8.

In the case of row sowing When raising the operating lever 33,
The left and right rear rotation arms 18, 18 ', 18' rotate upward about the horizontal shafts 26, 26 '. When the left and right rear rotation arms 18, 18 'rotate, the front rotation arms 19, 19' are moved around the horizontal shafts 27, 27 'by the engagement of the rear gears 23, 23' and the front gears 25, 25 '. Rotate upward.

When the rear rotation arms 18, 18 'and the front rotation arms 19, 19' rotate upward, the rear connecting rod 20 and the front connecting rod 21 rotate upward, and the rear connecting rod 20 and the front connecting rod 20. The seed feeding device 1 is moved upward by 21 and. When the height is adjusted to the desired height, the engagement shaft 47 at the tip of the arm 46 is engaged with and fixed to any of the row-growing engagement groove groups 49.

After that, the row seeding guide 30 is attached below the horizontal axis feeding roll 9, and the row roll 31 and the pressure suppression roll 32 are attached to the floor soil in the nursery box 8.
When it is adjusted to a height where it contacts the upper surface of 42, a groove 43 is formed on the upper surface of the floor soil 42 in the nursery box 8 by the row roll 31, and the groove 43 is formed from the divided drop openings of the row sowing guide 30. The seeds that have fallen are sown, and the crushing rolls 32 collapse the mountains on the upper surface of the floor soil 42 to fill the groove 43 and sown.

In this case, since the vertical up-and-down moving mechanism 17 vertically moves the seed feeding device 1, the strip roll 31 and the compression roll 32 can be brought as close as possible to the seed feeding device 1. Therefore, without being affected by the vibration of the lateral transfer table 15, the groove 43 passes under the row seeding guide 30 in a beautiful state, and is immediately crushed by the crushing roll 32, so that accurate row grooving is performed. be able to.

(Effect) In the known device, the seed feeding device moves up and down with respect to the transfer table so that switching between sowing and row sowing can be performed. However, since the up and down movement is performed along an inclined locus. ,
There is a problem in that it requires a space and is complicated in structure and difficult to adjust.

However, according to the present invention, the lateral feeding table for laterally feeding the nursery box 8 is provided.
In the seeding device in which the seed feeding device 1 is provided on the horizontal transfer table 15, the horizontal transfer table 15 includes a pair of left and right rear rotation arms 18 and 18 'by a left and right horizontal shafts 26 and 26', and a left and right horizontal shaft. Axis 27, 2
The pair of left and right front rotating arms 19, 19 'are axially stopped by 7', and the rear rotating arms 18, 18 'and the front rotating arms 19, 19' are the same as the rear rotating arm 18 '. Arcuate front gears 23 and 23 'formed at the front ends of the rear side rotation arms
Circular arc-shaped rear gears 25, 25 'formed at the rear ends of 19, 19' are provided in mesh with each other. , 19 'are connected to each other by front connecting rods 21, and the seed feeding device 1 is attached to the rear connecting rods 20 and the front connecting rods 21, and the rear rotating arms 18, 18' and the front side are connected. Since the seed feeding device 1 is a seeding device for a row-sowing / switching-type seedling raising box which is configured to move up and down when the rotating arms 19, 19 'rotate, the rear rotating arms 18, 18' or the front side. When one of the rotating arms 19 and 19 'is rotated up and down, the rear rotating arms 18 and 18' are rotated.
The other one of the rear side rotation arms 19 and 19 'is connected to the front gear 23,
Since it rotates up and down via the 23 'and rear gears 25, 25', the rear connecting rod 20 of the rear rotating arms 18, 18 'and the front connecting of the front portions of the front rotating arms 19, 19' are connected. Since the rods 21 move up and down respectively, the seed feeding device 1 can be moved up and down to easily switch between row sowing and sowing. Further, the structure is simple and can be implemented at low cost.

Further, in the seedling raising seedling device, one of the front side rotating arms 19, 19 'and the rear side rotating arms 18, 18' is provided with a height fine movement adjusting mechanism 45, and a row seeding sowing type can be used. Since it is a box seeding device, it can be used for nursery boxes of different heights.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall sectional view of a seed feeding device, FIG. 2 is a schematic view in a sowing state, FIG. 3 is a schematic view in a row sowing state, FIG. 4 is a side view of a rotating arm, FIG. 5 is a side view of the main part. DESCRIPTION OF SYMBOLS 1 ... Seed supply device, 2 ... Seed supply hopper, 3, 4 ... Grain board, 5 ... Supply port, 6 ... Adjusting plate, 7 ... Supply amount adjusting device,
8 ... Seedling raising box, 9 ... Horizontal axis feeding roll, 10 ... Feeding concave portion, 11 ...
Slit, 12 ... Knife, 13 ... Second leveling brush, 14 ... First
Leveling brush, 15… Transverse transfer stand, 16… Left support frame, 1
6 '... right support frame, 17 ... vertical up / down movement mechanism, 18 ... left rear rotation arm, 18' ... right rear rotation arm, 19 ... left front rotation arm, 19 '... right front rotation arm, 20 ... front connecting rod,
21 ... Rear connecting rod, 22 ... Left arc front part, 22 '... Right arc front part,
23 ... left front gear, 23 '... right front gear, 24 ... left circular arc rear part, 24'
… Rear arc rear, 25… Left front gear, 25 ′… Right front gear, 26,27
... Horizontal axis, 28 ... Side plate, 28 '... Side plate, 30 ... Row seeding guide, 31 ...
Roll with roll, 32 ... Packing roll, 33 ... Operating lever, 34 ... Arm, 35 ... Tooth tip, 36 ... Tooth base, 40 ... Seed guide cover, 41 ... Sponge, 42 ... Floor soil, 43 ... Groove, 45 … Height adjustment mechanism, 46…
Arms, 47 ... Engaging shafts, 48 ... Sowing seeding engagement groove group, 49 ... Striking engagement groove group.

Claims (2)

[Claims] 1. A seeding device in which a seed feeding device 1 is provided on a horizontal feeding transfer table 15 for laterally feeding a nursery box 8, wherein the horizontal feeding transfer table 15 has left and right horizontal shafts 26, 26 '. The pair of rear side rotating arms 18 and 18 'and the left and right lateral shafts 27 and 27' respectively axially lock the pair of left and right front side rotating arms 19 and 19 ', and the rear side rotating arms 18 and 18' are provided. And the front rotation arm 19, 1
9'means arc-shaped front gears 23, 23 'formed at the front ends of the rear side turning arms 18, 18' and the front side turning arms 19, 1 '.
Arc-shaped rear gears 25, 25 'formed at the rear end of 9'are provided in mesh with each other, and the rear portion of the rear side rotating arms 18, 18' are provided with rear side connecting rods 20 for the front side rotating arms 19, 19 '. The front portions of the ‘′ are connected by front connecting rods 21 respectively, and the seed feeding device 1 is attached to the rear connecting rods 20 and the front connecting rods 21, and the rear rotating arms 18, 18 ′ and the front rotating arms are connected. A seeding device for a row-sowing / switching-type seedling raising box in which the seed supply device 1 moves up and down when the arms 19, 19 'rotate. 2. The seedling raising plant seeding apparatus according to claim 1, wherein one of the front rotation arm 19, 19 'and the rear rotation arm 18, 18' has a fine height adjustment. A seeding device for a row-type and seed-switching nursery box with a mechanism 45 attached.