JPH0429700Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a seedling box seeding machine that sows seeds in seedling boxes.

(b) Conventional technology There have been seedling box seeding machines in the past, but 1.
The seed was fed out using a book roll, and there was no system that could adjust the vertical movement of the main body of the sowing machine on a traveling frame.

(c) Problems that the invention aims to solve This invention improves the problem that conventional seedling box seeding machines have had difficulty in cleaning and maintaining the inside after seedlings have been raised or when changing varieties. The structure is such that the distance between can be finely adjusted and precise seeding can be performed.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

A lower lower roller 2 and an upper drive roller 3 are supported between the left and right side plates 29L and 29R,
A seeding belt 1 having a concave hole 1a bored on the outer periphery is wound around the lower roller 2 and the drive roller 3,
The sowing belt 1 is rotated below the hopper 9, a certain amount of seeds are held in the concave hole 1a on the upper surface of the sowing belt 1, and the seeds are held in the part where the concave hole 1a of the sowing belt 1 rotates downward. is held by a sandwiching sheet 60 and falls onto the seeding bed from the concave hole 1a below the lower roller 2. The lower roller 2 is supported between the side plates on one side with respect to the conveyance direction of the seedling raising box 31, and Between the side plates on the other side,
It is pivotally supported to be vertically movable by a shaft 14 passing through the traveling frames 32L and 32R, and the lower roller 2 portion can be adjusted vertically around the shaft 14 by an adjustment screw 49 interposed between it and the traveling frame 32. This is what I did.

(e) Embodiments and operations The purpose and structure of the present invention are as described above. Next, the structure and operation of the embodiment shown in the attached drawings will be explained.

Fig. 1 is a side view showing the left drive section of the belt-type seeding machine of the present invention, Fig. 2 is a side view showing the right drive part, Fig. 3 is a front sectional view, and Fig. 4 is a right side sectional view. 5 is an overall perspective view of the belt-type seeding machine, FIG. 6 is an overall plan view, and FIG. 7 is a left side view with the lower roller section moved up and down.
FIG. 8 is a plan view showing the spirit level, FIG. 9 is a perspective view showing the adjustment portion of the support leg, FIG. 10 is a front sectional view of the hopper, and FIG. 11 is a plan view.

Next, Figure 1, Figure 2, Figure 3, Figure 4, and Figure 5.
The overall structure of the seedling box seeding machine will be explained with reference to FIG.

As shown in Fig. 5, left and right running frames 32L, 3
2R is formed into a rectangular frame, from which four support legs 96, 96, 96, 96 are extended to support the running frames 32L, 32R at a constant height from the ground.

Within the rectangular frame of these traveling frames 32L, 32R, the delivery belts 18L, 18R of the seedling raising box 31,
The carry-in belts 17L and 17R are being rotated. V-pulleys 16L, 1 for delivery belts 18L, 18R
6R and the V pulleys 15L, 15R of the carry-in belts 17L, 17R are fixed on the same main shaft 14.

Then, the delivery belts 18L and 18R are placed on the outside.
The seedling raising box 31 is carried in and carried out by being fully wound, and two carry-in belts 17L and 17R are wound inside.

A motor box 33 is fixed to the lower surface of the running frames 32L, 32R, and the motor 5 is disposed within this box. The main body of the seedling box seeding machine is pivotally supported on the traveling frames 32L and 32R by a main shaft 14, and one of the main bodies is supported by placing the tip of an adjusting screw rod 51 on a mounting table 50.

In addition, the main body of the seedling box sowing machine has left and right side plates 29L,
29R, and side covers 34 and 35 that cover the drive section on the outside of the side plates 29L and 29R, various shafts are spanned between the side plates 29L and 29R, and a front plate and a rear plate are placed in front and behind the side covers 34 and 35. The cover is fixed.

Further, a transparent hopper 9 made of synthetic resin is fixed at the upper corner of the carry-in side by simply placing it thereon, and can be attached and removed at will. A power switch 55 is provided at the top of the side plate 29L.

In this way, the left and right side covers 34, 35 are fixed parallel to the outside of the side plates 29L, 29R, and this part also has a framework structure, so the side plates 29L, 29R,
29R and the side covers 34 and 35 may be made of thin iron plates.

Further, the sowing bed roller 52 in the seedling raising box 31 will be explained from the left side view of FIG. The seeding bed roller 52 is pivotally supported by a rotating arm 83 via a shaft 77. Further, the rotating arm 83 itself is pivotally supported by the traveling frames 32L, 32R by a pivot shaft 54, and is biased by a biasing spring 53 toward the seeding bed of the seedling box 31. Further, the seeding bed roller 52 is driven by the motor 5 and rotates.

That is, a sprocket 13 is provided within the traveling frame 32L on the left side of the main shaft 14, and rotation is transmitted from the sprocket 13 to a sprocket 75 via a chain 76. Also, the rotation of the sprocket 75 is caused by the rotation of the gear 74 on the opposite side at the shaft 54.
is transmitted to the reverse gear 74a, and drives the upper sprocket 73 via the sprocket and chain 93. A sprocket 73 drives a shaft 77 and thus a seedbed roller 52.

In addition, the relationship between the adjustment screw rod 51, the mounting table 50, and the adjustment screw 49 is such that by turning the adjustment screw 49, the seeding machine body rotates around the main shaft 14, so that the relationship between the seeding belt 1 and the seeding bed is The relative height is determined precisely.

Further, in order to precisely determine the left and right position of the seedling raising box 31, side rollers 47 are protruded from the left and right sides, and are finely adjusted by adjusting screws 48. Side roller 4
7 is fixed to the left and right side plates 29L and 29R.

Next, let's look at the main body of the seeding machine in order of the drive system. Sprocket 11 on output shaft 10 of motor 5
is fixedly installed, and the main shaft 1 is connected via a chain 95.
The signal is transmitted to sprocket 12 on top of 4. Main shaft 14
As mentioned above, is the center of vertical movement of the seeding machine body, and is also the center of drive.

Carrying-in belts 17L, 17R and carrying-out belt 18
L, 18R V pulley 15L, 15R, 16
L and 16R are fixedly installed, and a sprocket 13 for a seed bed roller and a gear 19 are also fixedly installed. gear 1
9 meshes with the gear 20 on the counter shaft 97. A sprocket 21 is provided on the counter shaft 97, and a chain 22 is wound between the sprocket 21 and the sprocket 23 of the drive roller shaft 6.

Reference numeral 44 denotes a tension roller arm of the tension rollers 45 and 78, which is biased by a biasing spring 79 in the tensioning direction of the chain 22. When adjusting the amount of seed sown, the upper sprocket 23 is replaced with a sprocket having a different number of teeth, and the number of rotations of the drive roller 3 is changed.

At this time, even if the sprocket 23 is changed and the diameter becomes larger or smaller, the tension can be absorbed because the tension rollers 45, 78 have a large tension width in the tension roller arm 44.

The seeding belt 1 has recessed holes 1a formed on the outer periphery of the belt at regular intervals, into which seeds enter, are held between the holding sheets 60, and are transported downward. Since the holding sheet 60 is interrupted at the position of the lower roller 2, it is dropped there and precisely onto the seedling box 31.

At this time, the lower roller 2 has a large diameter part and a small diameter part shaped like an abacus bead, and the recessed hole 1a is located exactly in the large diameter part, so the exit of the recessed hole is slightly open as shown in 1a'. It deforms into an oval shape and improves seed production.

The holding sheet 60 is made of an elastic thin sheet, and its lower end is fixed by a fixing plate 81 that can be finely adjusted back and forth. This adjusts the position where the seeds fall. Also, the sandwiching sheet 6
A guide plate 61 is applied from below the middle part to prevent the 0 from hanging down.

Further, after the sandwiching sheet 60 is wound around one-third of the drive roller 3, it is separated in the tangential direction and attached to the bending rod 91.
from there to the biasing spring 90, and is biased in the tension direction by the biasing spring 90.

Further, the lower roller 2 mentioned above is also driven.
That is, a sprocket 38 is provided at the position where the drive roller shaft 6 exits the right side plate 29R, and a chain 46 wound around this sprocket is connected to the sprocket 39 of the lower roller shaft 7 and the rotating brush shaft 8 of the rotating brush 4. It is wound between the provided sprockets 37 to drive them.

This chain 46 also has tension rollers 40, 41.
A tension roller arm 42 is provided, and the tension roller arm 42 rotates around a pivot shaft 43.

These chain tensioning devices allow chain 4
It is configured to accommodate the large adjustment of 6. 80
is the biasing spring of the tension roller arm.

The reason why tension roller devices with a wide adjustment range are provided on the left and right chains 22, 46 is to remove the slack in the seeding belt 1, or to replace the sprocket 23 to adjust the amount of seeding. This is because it makes it possible to release tension.

If the lower roller shaft 7 is configured to take up the slack in the seeding belt 1, the position relative to the sandwiching sheet 60 will be disturbed, and the height with respect to the seedling box will also change, making it impossible to perform precision sowing. This makes it possible. That is, the left and right side plates 29
Long holes 29a and 29a are opened in L and 29R, and the drive roller shaft 6 can move up and down within these holes.

The bearing of the drive roller shaft 6 is mounted on the side plates 29L, 29.
They are provided on the "L" shaped fittings 28L and 28R rather than on the R shaped fittings. This “L” shaped fitting 28L, 2
8R is lifted upward by tension rods 26L, 26R via biasing springs 27L, 27R. The tension rods 26L, 26R are lifted by the arms 25L, 25R beyond the fulcrum, and these arms are connected to the rotation axis 3.
It is fixed at 6. 6 at the end of the rotation shaft 36
A square nut part 24 is provided, and when the operator releases the drive roller shaft 6, he applies a wrench to this hexagonal nut part 24 and rotates it so that it passes over the fulcrum. This allows the drive roller shaft 6, drive roller 3, and sprocket 23 to be easily connected.
can be canceled.

In addition, as shown in the cross-sectional view of the main body, the seeding belt 1
is guided from the inner surface by guide rollers 58, 59, and the shafts 5 of the guide rollers 58, 59
6 and 57 are not driven, but the guide rollers 58 and 59 rotate due to the resistance on the inner surface of the seeding belt 1.

Since the guide rollers 58 and 59 rotate at the same speed on the upper and lower surfaces of the seeding belt 1, there is no friction. Further, the diameters of the guide rollers 58 and 59 are configured to have approximately the same vertical width.

In addition, a viewing window 29d is provided at a portion of the side plates 29L, 29R corresponding to the lower end of the sandwiching sheet 60, so that defects or blockages in this portion can be detected and removed.

The hopper 9 is merely placed from above and is not securely fixed. This is because there is not a precise spacing between the hopper 9 and the seeding belt, but a precise spacing between the shutter plate 84 and the upper surface of the seeding belt 1.
The shutter plate 84 forms the lower part of the grain flow plate 87, and can be opened and closed by rotating.

85 is an opening/closing lever, 94 is a rotating shaft, and 86 is a fulcrum crossing spring. The opening/closing position is maintained by the fulcrum crossing spring 86.

By opening and closing the shutter plate 84, cleaning of the clogged hopper 9 and cleaning after completion of the operation can be easily performed. Rather than sealing to prevent leakage, Hopper 9 creates an angle of repose in the seeds to prevent spillage. Especially the shutter plate 84
The upper part is closed, but the upper part is open, and the angle of repose of the seed is stable. Here is the concave hole 1
Seeds enter the recessed hole 1a while the seeding belt 1 with the opening a passes through.

Since seeds protrude from the recessed hole 1a in a heaped shape, they are scraped off with the lower brush 63 and the upper brush 62. The scraped seeds roll down to the shutter plate 84 in the case of the lower brush 63, and fall to the upper surface of the lower brush 63 in the case of the upper brush. The seeds accumulated on the upper surfaces of the lower brush 63 and the upper brush 62 fall toward the shutter plate 84 through the gap between the side ends of both brushes and the side plates 29L, 29R. The lower brush 63 and the upper brush 62 serve to scrape off seeds that have risen inside the concave hole 1a.
On the contrary, it has the role of replenishing seeds into the concave holes 1a that do not contain seeds.

The lower brush 63 is rotatable around a shaft 65a by an arm 65, and an arm 70 is also provided outside the elongated hole 29c. A fine adjustment screw 71 is provided at the lower end of the brush. Further, when the fulcrum crossing spring 68 is not required, it can be released upward. Further, when it is in contact with the upper surface of the seeding belt 1, it is pressed by the fulcrum crossing spring 68.

Similarly, the upper brush 62 also has an arm 64 and a shaft 64.
a, an arm 69, and a fulcrum crossing spring 67 are provided, and the release of the pressure can be switched.

In the gap between the left and right side plates 29L, 29R and the seeding belt 1, there is a
A letter-shaped elastic plate 88 is protruded and slid onto the seeding belt 1.

Also, it is inserted into the recessed hole 1a of the seeding belt 1, and the 2
The seeds that have passed through the brushes 63 and 62 at the bottom and top of the book are finally scraped off by the rotating brush 4 that rotates at the upper end of the rotation of the seeding belt 1. The seeds scraped by the rotating brush 4 roll down and accumulate on the upper surface of the upper brush 62, and are used to replenish the unfilled concave holes 1a. The rotating brush 4 is driven from a sprocket 37 by a rotating brush shaft 8. A splash-out regulating plate 92 is disposed above the rotating brush, and the rotating brush 4
This prevents seeds from being carried around and blown away.

Further, the rotating brush shaft 8 can adjust the gap vertically with respect to the upper surface of the seeding belt 1, and the side plate 2
Elongated holes 29g are provided at 9L and 29R.

In this embodiment, the hopper 9 is configured to fit into a transparent plate, and is simply inserted and placed from above without being fixed with bolts or nuts. This makes it easier to clean and inspect the lower seeding belt 1.

Also, by using a transparent plate, it is easy to check the remaining amount. Also, as shown in FIGS. 1 and 2, side plate viewing windows 29d and 29d are located at the lower end of the seeding belt 1.
Since this window is provided, when the belt is operated for a long time, dust accumulates on the inside of the belt and causes slippage, but this can escape through this window, and the seeding belt can be cleaned as it is. Further, since the side surfaces of the seedling raising box 31 are guided by the side rollers 47, 47, it is possible to correct the left and right deviation of the raised seedlings during transportation.

Conventionally, this was corrected by applying resistance using a guide plate, which caused the box to slip and reduce sowing accuracy, but this problem has been resolved.

In addition, the supporting legs of the traveling frame 32 are shown in FIGS. 7 and 8.
Since the adjusting screws 99, 99 are provided as shown in the figure, the seeding machine and the traveling frame can be maintained horizontally. Also, since level gauges 66 and 98 are provided, it is possible to check and adjust the horizontality of the traveling frame and seeding machine.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, since the main body of the seeding machine of the present invention is large in weight and strong, it can be fixed in position simply by pivoting on the main shaft 14 and placing the other on the adjustment screw 49. Fine adjustments can be made simply by rotating the screw 49.

Second, by rotating the adjustment screw 49,
Fine adjustments can be made easily, and the lower roller 2
This made it possible to precisely adjust the height of the seedling box.

Thirdly, the seeds can be dropped at a minimum height corresponding to the height of the seedling box, thereby preventing the seeds from scattering.

Fourthly, by rotating the main body of the seeding machine around the shaft 14, inspection and repair of the lower part can be easily performed.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the left drive section of the belt-type seeding machine of the present invention, Fig. 2 is a side view showing the right drive part, Fig. 3 is a front sectional view, and Fig. 4 is a right side sectional view. Fig. 5 is an overall perspective view of the belt type seeding machine, Fig. 6 is an overall plan view, and Fig. 7 is a left side view of the lower roller section when it is moved up and down.
FIG. 8 is a plan view showing the spirit level, FIG. 9 is a perspective view showing the adjustment portion of the support leg, FIG. 10 is a front sectional view of the hopper, and FIG. 11 is a plan view. 1... Seeding belt, 2... Lower roller, 9...
...Hopper, 14...Main shaft, 31...Seedling box.

Claims (1)

[Scope of utility model registration request] A lower lower roller 2 and an upper drive roller 3 are supported between the left and right side plates 29L and 29R,
A seeding belt 1 having a concave hole 1a bored on the outer periphery is wound around the lower roller 2 and the drive roller 3,
The sowing belt 1 is rotated below the hopper 9, a certain amount of seeds are held in the concave hole 1a on the upper surface of the sowing belt 1, and the seeds are held in the part where the concave hole 1a of the sowing belt 1 rotates downward. is held by a sandwiching sheet 60 and falls onto the seeding bed from the concave hole 1a below the lower roller 2. The lower roller 2 is supported between the side plates on one side with respect to the conveyance direction of the seedling raising box 31, and Between the side plates on the other side,
The lower roller 2 portion is pivoted to be vertically movable by a shaft 14 passing through the running frames 32L and 32R, and can be moved up and down about the shaft 14 by means of an adjustment screw 49 interposed between the running frame 32 and the side plate 29. A belt-type seeding machine characterized by being adjustable.