JPS61192218A - Seed feeder of belt type seeder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a seeding device for seedling growing boxes for vegetating seedling mantles to be planted using a rice transplanter.

(B) Prior Art A conventional seedling box seeding machine is a device for feeding out a set of rollers that is fed out by a single roller, and there is no device that has a feeding device using a seeding belt. However, in mobile direct seeding machines,
A belt-type feeding device using a seeding belt was known. However, even in the case of this prior art, the action of the brush was only to scrape off excess seeds with a scraper, and it was not possible to replenish the empty holes with seeds.

(c) Problems to be Solved by the Invention The purpose of the present invention is to solve the problem in that the seeds contain awns, branches, buds, etc., and it is impossible to fill the pores 100% in one go. By bringing the seeds into contact with the holes three times, the holes are filled 100% with seeds.

The role of the brush is to scrape the surface of the belt and feed the paddy again.

(d) Means for Solving the Problems The objects of the present invention are as described above. Next, the structure for achieving the objects will be explained.

In a configuration in which sowing is carried out by moving the sowing hel l-1 below the homper 9 and holding a certain amount of seeds in the concave holes of the sowing belt, the seeds in the homper 9 are dropped onto the upper surface of the sowing belt. , and is partitioned in multiple stages with brushes, and is configured to supply seeds to the concave holes multiple times.

(E) Embodiments and Functions The objects and structure of the present invention are as described above. Next, the structure of the embodiments shown in the attached drawings and the functions of the invention will be explained.

Figure 1 is a sectional view of the right side of the belt-type seeding machine of the present invention;
The figure is a side view of the right side drive unit, Figure 3 is a side view of the left side drive unit, and Figure 4 is a side view of the left side drive unit.

5 is an overall perspective view of the belt-type seeding machine, 6 is an overall plan view, 7 is a front view of the shutter plate, 8 is a side view, and 9 is a brush. FIG. 3 is a plan view of an elastic plate on one end surface of the seeding bell 1. FIG.

Next, the overall structure of the seedling box seeding machine will be explained with reference to FIGS. 1, 2, 3, 4, 5, and 6.

The left and right running frames 32L and 32R are constructed into a rectangular frame, and four supporting legs 96, 96, 96, 96 are extended from the frame to maintain the running frames 32L and 32R at a certain height from the ground.
is supported.

Within the rectangular frame of the traveling frames 32L and 32R, the delivery bell for the seedling raising box 31) 18R and 18L, and the delivery belt 1
7R and 17L are rotated. Export belt 18L/1
817 (71) V pulley 16L/16R and V-boot IJ-15L/15R of L/To 17L/17R
are fixed on the same main shaft 14. And unloading bell L
Two 18L and 18R are wound on the outside, and the loading bell)
Two 1.7L and 1.711 are wound inside to create seedling raising box 3.
1 is being brought in and taken out.

Running frame 32L/321? A motor box 33 is fixedly installed on the lower surface of the motor box 33, and the motor 5 is disposed inside the motor box 33. The main body of the seedling box sowing machine is this traveling frame 32.
1, 32R by a main shaft 14, and one end of an adjusting screw rod 51 is placed on and supported by a mounting table 50.

In addition, the main body of the seedling box sowing machine has left and right side plates 29I7 and 29R.
, and side covers 34 and 35 that cover the drive section on the outside of the side plates 291 and 29R, and this side plate 291.・Various types of shafts are suspended between 2911, and the front and rear sides are covered and fixed with front and rear plates.

In addition, a transparent hopper 9 made of synthetic resin is fixed by simply placing it on the upper corner of the 111-person side, and can be removed and attached 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 and 35 are fixed parallel to the outside of the side plates 29L and 29R, and this part also has a framework structure, so the side plates 29L and 29R and the side covers 35
・35 can be made of a thin iron plate.

Also, to explain the seed bed roller 52 in the seedling raising box 31 from the left side view, the seed bed roller 52 is connected to the rotating arm 8.
3 by a shaft 77. Further, the rotating arm 83 itself is pivotally supported by the traveling frames 32L and 32H 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 running frame 32L on the left side of the main shaft 14, and rotation is transmitted from the sprocket 1-13 to the sprocket 75 via a chain 76. Further, the rotation of the sprocket 75 is transmitted through the shaft 54 to the gear 74 on the opposite side and the reverse gear 74a, driving the upper sprocket 73 via the sprocket and chain 93. A sprocket 73 drives a shaft 77 and thus a seed bed 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 main body of the seeding machine can be adjusted to the main shaft 1.
4, the height relative to the sowing belt 1 and the sowing bed can be precisely determined. Also, seedling raising box 3
Side rollers 47 are protruded from the left and right sides in order to precisely determine the left and right positions of 1, and are finely adjusted by adjustment screws 48. The side rollers 47 are 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 its drive system. A sprocket 11 is fixed to the output shaft 10 of the motor 5, and the sprocket 11 is connected to the main shaft 14 via a chain 95.
It will be communicated to 2. As mentioned above, the main shaft 14 is the center of vertical movement of the seeding machine main body, and is also the center of drive. Carrying belt 171.・17R, f squeeze belt 18L/18R V
Pulleys 151, 15R, 16I, and 1611 are fixedly installed, and the sprocket 13 and gear 19 for the seed bed roller
is also fixed. Gear 19 meshes with gear 20 on countershaft 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. 44 is a tension roller arm of the tension rollers 45 and 78, and a biasing spring 79 is used to tighten the chain 22.
is biased in the direction of tension. When adjusting the seeding amount, the upper sprocket 23 is replaced with a sprocket having a different number of teeth, and the rotational speed of the drive roller 3 is changed.

At this time, even if the sprocket 23 is changed and the diameter becomes larger or smaller, it can be absorbed because the tension rollers 45 and 7 have a wide tension width in the tension roller arm 44.

The sowing heald 1 has concave holes 1a formed at regular intervals on the outer periphery of the belt.
60 and 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 and a small diameter part shaped like an abacus, and the recessed hole 1a is located once in the large diameter part, so the exit of the recessed hole is slightly open like la'. It deforms into an oval shape and improves seed production.

The holding sheet 60 is made of a thin elastic sheet, and its lower end is fixed with a fixing plate 81 that can be adjusted forward and backward.
The fixed plate 81 can be adjusted back and forth within the elongated hole 29e by an adjustment plate 82. This adjusts the position where the seeds fall. Further, in order to prevent the holding sheet 60 from sagging, a guide plate 61 is applied from below the midway portion.

In addition, after the clamping sheath 1-60 wraps about one-third of the drive roller 3, it leaves in the tangential direction and moves from the bending rod 91 toward the biasing spring 90, and is moved in the tensioning direction by the biasing spring 90. energized. - Also, 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 38 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 and drives them. This chain 46 is also provided with tension rollers 40 and 41 and a tension roller arm 42.
2 is rotating around a pivot shaft 430.

These chain tensioning devices are designed to accommodate large adjustments to the chain 46. 80 is a biasing spring for the tension roller arm.

The reason why the tension roller devices with a wide adjustment range are provided on the left and right chains 22 and 46 is to remove the slack in the seeding belt 1, or to replace the sprocket 23 and adjust the amount of seeding by using the drive roller shaft 6. This is because it makes it possible to relieve tension. If the lower roller shaft 7 is configured to have slack in the sowing area, the relative position with 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 is all made possible by the drive roller shaft 6.

That is, the left and right side plates 29L and 291? has a long hole 29a.2
9a is open, and the drive roller shaft 6 can move up and down within the opening.

The bearings of the drive roller shaft 6 are provided not on the side plates 29L and 29R but on the rLJ-shaped metal fittings 28L and 28R. This rLJ type metal fitting 28I2/28R is attached to the biasing spring 2.
It is lifted upward by tension rods 26L and 26R via 7L and 27R. The tension rods 26L and 26R are lifted by fulcrum crossing arms 25L and 25R, which are fixed to the rotation shaft 36. A hexagonal nut portion 24 is provided at the end of the rotation shaft 36, and when the operator releases the drive roller shaft 6, hexagonal nut portion 24 is provided.
A wrench is applied to the shaft to rotate it and make it cross over the fulcrum. This allows the drive roller shaft 6, drive roller 3, and sprocket 23 to be released with a simple operation.

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 and 59, and the shafts 56 and 57 of the guide rollers 58 and 59 are not driven, but the seeding belt 1 is guided by guide rollers 58 and 59. The O guide rollers 58 and 59 rotate due to the resistance on the inner surface.

Since the circumferential speed of the guide rollers 58 and 59 is the same on the upper and lower surfaces of the seeding heald 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 and 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 simply placed from above and is not securely fixed. This is because there is not a precise interval between the hopper 9 and the seeding belt, but a precise interval 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 a fulcrum cross-over spring 86.

By opening and closing the shutter plate 84, it is possible to easily clean the clog in the ompper 9 and to clean it after completion of the operation. Rather than sealing the hopper 9 to prevent leakage, the angle of repose of the seed is configured to prevent spillage. In particular, the shutter plate 84 is sealed but open upward, and the seeds are stable at the angle of repose. While the seeding bell (I) with the recessed hole 1a is passing through here, the seeds enter the recessed hole 1a.

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.

Then, 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 formed between the side ends of both brushes and the side plates 29L and 29R.

The lower brush 63 and the upper brush 62 have the role of scraping off the seeds that have built up in the hole 1a, and conversely, the role of replenishing seeds into the hole 1a where there are no 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, a fulcrum crossing spring 68 is interposed in the arm 70 so that the lower brush 63 can be released upward when it is not needed. 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 is also provided with an arm 64, a shaft 64a1 arm 69, and a fulcrum crossing spring 67, making it possible to switch the release of the pressure.

In the gap between the left and right side plates 29L and 29R and the seeding belt 1, an L-shaped elastic plate 8 is inserted from the side plates 29L and 29R.
8 protrudes and slides onto the seeding belt 1.

In addition, the seeds that have fit into the recessed hole 1a of the sowing belt 1 and passed through the two lower and upper brushes 63 and 62 are finally sown by the rotating brush 4 that rotates at the upper end of the sowing belt 1. Be taken. The seeds scraped off 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 by a sprocket 37 via a rotating brush shaft 8. A splash-out regulating plate 92 is arranged above the rotating brush, and stops the seeds carried around by the rotating brush 4 and thrown away.

In addition, the rotating brush shaft 8 can adjust the gap vertically with respect to the upper surface of the seeding belt 1, and the side plates 29L and 29R
A long hole 29g is provided in.

Further, as shown in FIG. 1, a large-diameter guide roller 58 is provided on the back surface of the seeding belt 1 facing the upper brush 62, and a small-diameter guide roller 59 is provided on the back surface of the seeding belt 1 facing the lower brush 63. . These guide rollers 58 and 59 are set at a rotation speed that matches the circumferential speed of the seeding belt 1. With this configuration, the flatness of the seeding belt 1 is maintained well, and the seeding belt 1 is prevented from slipping in the vertical direction, thereby ensuring the scraping, guiding, and conveyance of seeds.

In addition, the upper brush 62 and lower brush 63 can be rotated or pressed from the outside with a single touch, which makes it easy to remove remaining seeds at the end of work or when changing seed types, making cleaning easier, and reducing the need for sowing belts. This protects the brush when it is loosened.

Also, as shown in FIG. 9, both ends of the brushes 62 and 63 and the side plate 29].

- A gap is provided between the container and the container 29R, and an elastic plate 88 is provided in the gap so that the accumulated seeds can fall onto the elastic plate 88. As a result, the seeds that have passed through the brush accumulate on the upper side of the brush and become paddy for replenishment, but when the amount gradually increases, more than a certain amount is returned to the bottom by this overflow. This does not interfere with the operation of the upper brush and does not damage the paddy.

In addition, as shown in FIG. 9, in order to prevent seed leakage at both ends of the sowing bell, an elastic plate 88 is used as a sheet member, one end of which is brought into contact with the upper surface of the sowing belt 1, and one end of which is fixed to the inner wall of the side plates 29L and 29R. This allows it to closely follow the top surface of the belt and also accommodate large height fluctuations when the heald is loosened.

In addition, as shown in Fig. 1, a rotating brush 4 is provided above the sowing belt so that it can be adjusted vertically, and a spring-out regulating plate 92 is provided at the rear thereof (also adjustable vertically). It does not fall between 60 and 60.

Further, as shown in FIGS. 7 and 8, a shutter plate 84 is provided at the lower end of the seeding belt 1 so that it can be rotated and opened with a single touch across the entire width of the belt, making cleaning easier.

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

Seeds have awns, branches, etc. attached to them, and if they are germinating, they will also have sprouts, so it is impossible to fill them 100% just by passing under the seedlings once.

However, by applying a filling action again using the scraper brush, the filling rate of the concave holes could be made 100% by contacting the seed retention area many times.

[Brief explanation of drawings]

Figure 1 is a sectional view of the right side of the belt-type seeding machine of the present invention;
Figure 3 is a side view of the right side drive unit, Figure 3 is a side view of the left side drive unit, Figure 4 is a front sectional view, Figure 5 is an overall perspective view of the belt type seeding machine, and Figure 6 is a side view of the left side drive unit. Similarly, FIG. 7 is a front view of the shutter plate, FIG. 8 is a side view, and FIG. 9 is a plan view of the brush and the elastic plate at the end of the seeding belt.

Claims (1)

[Claims] In a configuration in which the seeding belt 1 is moved below the hopper 9 to hold a certain amount of seeds in the recessed hole 1a of the seeding belt 1 for sowing, the seeds in the hopper 9 are dropped onto the upper surface of the seeding belt, A seed feeding device for a belt-type seeding machine, characterized in that the seed feeding device for a belt-type seeding machine is characterized in that the seed feeding device is partitioned in multiple stages by brushes and is configured to feed seeds into the concave holes multiple times.