JPH0446522B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention provides a sowing device that can automatically sow a desired number of seeds reliably into each pot of a pot sheet seedling box, for example. It is.

(Prior Art) Conventionally, seedlings with soil for rice transplanters have progressed from seedlings sown in bulk to seedlings with soil sown in rows, and recently pot sheet seedlings have appeared. This soil-attached seedling has thicker and stronger stems than conventional seedlings, so it has been confirmed that it is resistant to cold damage.

(Problem to be solved by the invention) Therefore, although pot sheet seedlings have become quite popular, it is difficult to create pot sheet seedlings because there has never been a device that can reliably sow one seed at a time in small pots. Ivy.

In addition, in the field, it was very difficult to thin the seeds after sowing them.

(Means for Solving the Problems) In the present invention, a large number of spiral rolls 16 having spiral grooves 17 formed on the outer circumferential surface are arranged in parallel, and the spiral grooves 17 fit between the spiral rolls 16 so that one grain of seeds 20 is fitted into the spiral rolls 16. A cross-shaped seed moving groove 21 is formed with a fitting groove 19 formed at the lower part, and one side of the moving groove 21 is connected to the starting end 2.
2, the other end is the terminal end 23, and the spiral roll 16
Due to the rotation of the seed 2 fitted into the fitting groove 19,
0 from the starting end 22 to the terminal end 23 and sowing from the terminal end 23, the sowing device in which the rotation speed of the spiral roll 16 is adjustable;
A horizontal transfer table 1 for transferring the storage case 2 fitted with the pot sheet seedling box 5 is provided below the seed transfer groove 21, and the rotational speed of the spiral roll 16 is set relative to the moving speed of the pot sheet seedling box 5. A seeding device is equipped with a seeding device that can be adjusted to seed one to several seeds, and a large number of spiral rolls 16 having spiral grooves 17 formed on the outer peripheral surface are arranged side by side.
The spiral grooves 17 are combined between the 6 spaces to form a cross-shaped seed transfer groove 21 with a fitting groove 19 formed at the bottom into which one seed 20 fits, and one of the transfer grooves 21 is connected to the starting end 22 to the other. is the terminal end 23, and the seeds 20 fitted in the fitting groove 19 are moved from the starting end 22 to the terminal end 23 by the rotation of the spiral roll 16, and the seeds 20 are sown from the terminal end 23. This is a seeding device that is attached to a moving machine and that allows the rotation speed of the spiral roll 16 to be adjusted.

(Example) To explain with an example diagram, 1 is a storage case 2
This horizontal transfer table is formed long in the transfer direction and is supported on the floor by support legs 3 provided at desired positions.
A pot sheet seedling box 4 is stored in the storage case 2. 5 is the pot of the pot sheet seedling box 4.
The pot sheet seedling box 4 is made of a water-soluble paper-like material, and forms the large number of pots 5 described above. Preferably, about 16 pots 5 are arranged in parallel in the left-right direction, and about 34 pots 5 are arranged in parallel in the front-rear direction.

A soil covering supply device 7 is provided above the supply side 6 of the horizontal transfer table 1 . The covering soil supply device 7 is formed by a hopper 8, a feeding belt 9, etc., and supplies covering soil 10 into each pot 5 of the pot sheet seedling box 4. 11 is a case 2 that stores the pot sheet seedling box 4.
This is a pressure roller that presses inward. Pressing roller 11
A seeding device 12 is provided on the transfer direction side.

The seeding device 12 is formed by seed seeding devices 14 and 15 having a seed rice supply hopper 13, roll groups A and B, and the like. Each spiral roll 16 of the roll groups A and B
has a spiral groove 1 on its outer circumferential surface extending in the direction of the terminal end.
form 7.

The spiral groove 17 may be a single-thread spiral or a multi-thread spiral, and a three-thread spiral was preferred according to experimental results. The spiral roll 16 is formed to have the same diameter throughout. 18 is a helical ridge portion of the helical roll 16.

When viewed from above, the adjacent spiral rolls 16, 16 rotate with a narrow gap between each crest 18 and each spiral groove 17, and rotate with the axis of the spiral roll 16 aligned. They are arranged in parallel so that the center direction and the transport direction of the storage case 2 are parallel to each other. The mutual spiral grooves 17 of the spiral rolls 16 arranged in parallel are
The left and right sides are combined to form one fitting groove 19, but the size of the fitting groove 19 is formed to be smaller than the seed 20.

Following the roll group A, a similarly formed rear roll group B is provided adjacently, and the roll groups A, B
The spiral roll 16 and the spiral roll 16 are arranged in parallel.
Seed transfer grooves 21 in the shape of a star are formed on the upper surfaces of the narrow gaps between the two. That is, the spiral roll 16
A plurality of seed transfer grooves 21 are arranged side by side in the left and right direction with respect to the axial direction, and the number of seed transfer grooves 21 is 1/2 of the number of pots 5 of the pot sheet seedling box 4 passing below the spiral roll 16. Make it. For example, in this embodiment, the number next to the pot 5 of the pot sheet seedling box 4 is 16.
Therefore, the number of seed transfer grooves 21 is "8", and therefore the number of spiral rolls 16 is nine.

Thus, each seed moving groove 21 of the roll groups A and B is connected to the pots 5 in every other row in the transport direction of the pot sheet seedling box 4 passing below each spiral roll 16.
The roll groups A and B are arranged so that the seed transfer grooves 21 of each other are positioned right and left by the width of one pot 5, and the roll groups A and B are positioned directly above the front roll group A.
The helical rolls 16 of the rear roll group B and the helical rolls 16 of the rear roll group B are provided on the horizontal transfer table 1 so as to be shifted in position.

The seed moving groove 21 between each spiral roll 16 of the roll groups A and B has one end formed at a starting end 22 and the other end formed at a terminal end 23 .

The spiral roll 16 has a shaft 25 inserted through the center of the roll portion 24 forming the spiral groove 17, and one protrusion 26 of the shaft 25 is connected to the suction device 2.
The other protruding portion 30 of the shaft 25 is pivotally attached to a side wall 29 made of a thin iron plate, which is the outer wall of the suction case 28 of No. 7.
is formed with a front end large diameter section 32, a front end medium diameter section 33, and a front end small diameter section 34. The front end small diameter portion 34 is pivoted to the metal frame 31 of the seeding device 12 .

A falling chute 35 is provided at the terminal end 23 of the seed moving groove 21 . The chute 35 is formed of a synthetic resin wall 36, and the synthetic resin wall 36 is attached to the outer surface of the side wall 37 on the terminal end 23 side of the suction case 28. The inner upper end 38 of the synthetic resin wall 36 is formed into a semicircular arc shape that matches the shape of the lower surface of the roll part 24 of the spiral roll 16, so that the tip of the roll part 24 of the spiral roll 16 rotates in close proximity. do. The upper end portion 38 is provided to prevent suction air from the suction device 27 from leaking. An engaging portion 39 is formed on the outside of the synthetic resin wall 36, and the front end large diameter portion 32 of the spiral roll 16 is engaged with the engaging portion 39. , is formed in a semicircular arc shape matching the shape of the front end large diameter portion 32. A seed drop port 41 is formed between the left and right sides 40, 40 of the engaging portion 39, and a drop chute 35 is formed on the outer surface of the synthetic resin wall 36 below the seed drop port 41. The falling chute 35 forms a U-shaped groove 42 on the outside of the synthetic resin wall 36, and the groove bottom of the groove 42 is formed in a semicircular arc shape. The falling chute 35 is formed into a substantially square (or U-shaped) shape by surrounding the U-shaped groove 42 with the metal frame 31. Falling chute 3
5 are formed in the same number as the number of seed transfer grooves 21 between the spiral rolls 16, 16 arranged in parallel. Falling chute 35
The lower end 43 of the pot 5 of the pot sheet seedling box 4
It is located directly above the pot 5 and is formed at a height that almost touches the top surface of the pot 5. Also, when used on a tractor, it should be formed at a height that is close to the muddy soil in the field. Therefore, the synthetic resin wall 36 is formed to be removable or expandable, and the lower end 43 of the falling chute 35 is formed at the height of the pot of the pot sheet seedling box, at the level of the mud in the field. Sometimes.

A suction device 27 is attached below each spiral roll 16. The suction device 27 is formed by opening a suction port 45 in one of the left and right side plates 44 of the suction case 28 . A connecting portion 46 is formed on the outside of the suction port 45, and a hose of a suction machine (not shown) is connected to the connecting portion 46. The suction device 27 allows suction air to blow through the fitting groove 19 from top to bottom, and sucks the seeds moving in the seed transfer groove 21 downward, so that the seeds stand upright and are absorbed into the fitting groove 19. The purpose is to ensure that

Spiral rolls 16 of the roll groups A and B arranged side by side
Between the starting end 22 and the terminating end 23 of the seed moving groove 21, the terminating end 23
A rotating brush 47 is provided to level the seeds moving in the seed moving groove 21 toward the seed moving groove 21. The rotary brush 47 has its shaft 48 protruded from the long holes 95, 95 of the side plates 52, 53 of the seeding device 12, and has both ends connected in pairs so that the axial direction of the shaft 48 of the brush 47 is orthogonal to the axial direction of the spiral roll 16. The rotary arm 49 and the rotary arm 50 are pivoted to the upper ends thereof.

The lower ends of the rotating arms 49 and 50 are rotatably attached to a drive shaft 51. Drive shaft 5
1 is the suction case 28 of the dotting device 14 and the dotting device 1
It is provided in the left-right direction between the suction cases 28 of No. 5, and its both ends are installed on the side plates 52 and 53 of the seeding device 12. The drive shaft 51 projects from the rotating arms 49, 50, has drive pulleys 54, 54' fixed thereto, and has a gear 57 pivotally attached to its outer side. The gear 57 transmits the power of the motor to the drive shaft 51.
The shaft 48 of the rotating brush 47 is connected to rotating arms 49, 50.
The driven pulleys 55, 55' are made to protrude further and are attached to the shaft end.
to fix. The passive pulley 55 and the driving pulley 54
The belt 56' is passed around the driven pulley 55' and the driving pulley 54' so as to rotate in the forward direction, and the drive shaft 51 is rotated through the gear 57. The brush 47 is rotated in a direction to sweep the seeds back toward the starting end 22 side.

Support rods 58, 5 are attached to the upper ends of the rotating arms 49, 50.
8 is fixed at the lower end, and a horizontal rod 59 is fixed to the upper end of the support rods 58, 58. A mounting frame 60 having an L-shaped cross section and side surface shape is attached to the left and right sides of the horizontal rod 59 so as to face the rotating brush 47 outside.
A seed receiving box 61 is attached to the rotary brush 47 to collect seeds that have adhered to the rotary brush 47 and rotated together. The seed receiving box 61 has a rectangular shape when viewed from above, and the rotating brush 47
The side plate 62 is formed to be inclined toward the rotating brush 47 side.

63 regulates the degree to which the rotating brush 47 contacts the spiral roll 16, and also adjusts the height of the seed receiving box 61 in accordance with the rotating brush 47. That is, the upper end portions of the rotating arms 49, 50 tend to rotate downward due to their own weight. The adjustment screw 63 is
The lower end 65 of the adjustment screw 63 is brought into contact with a receiving plate 64 which is attached vertically to both left and right ends of the horizontal rod 59 and formed by bending the upper ends of the side plates 52, 53 of the seeding device 12 inward. Rotating arm 49, 50
support. When the adjusting screw 63 is rotated clockwise, the horizontal rod 59 rises and the rotating arms 49, 50 are rotated upward about the drive shaft 51. Conversely, when the adjusting screw 63 is rotated counterclockwise, the horizontal rod 59 rises. 59 descends and rotates the rotating arms 49 and 50 downward about the drive shaft 51, and the rotating brush 47 rotates the spiral roll 1.
6, and also controls the degree of contact with the seed box 61.
The height of the brush 47 is also adjusted according to the rotating brush 47.

A guide 66 is provided on the upper surface of the spiral roll 16 on the starting end 22 side. The guide 66 rotates together with the rotation of the spiral roll 16 to move the adjacent seed moving groove 2.
1. This is to prevent the seeds from moving. The guide 66 is formed with two surfaces: an inclined surface 68 that covers the upward rotation side 67 of the spiral roll 16, and an inclined surface 70 that covers the downward rotation side 69. Rotation rising side 6
The inclined surface 68 covering the rotating rising side 67 is made wide so as to cover almost the whole of the rotating rising side 67, and is also long in the direction of movement of the seeds, so that the seeds 20 and the rotating rising side 67 hardly come into contact with each other. Do it like this. The inclined surface 70 covering the rotating downward side 69 is formed to cover approximately half of the rotating downward side 69, and the seed 20 is moved into the seed moving groove 2.
1. The lower surface of the guide 66 is formed in a semicircular arc shape to match the upper surface of the spiral roll 16, and is formed with a slight gap just past the upper surface of the spiral roll 16. The tip end 71 of the guide 66 is formed to be inclined α at approximately 45 degrees so as to match the tip trajectory of the rotating brush 47 so that the tip portion 71 projects below the rotating brush 47 . The guides 66 are made of synthetic resin, are arranged in parallel on the upper surface of each of the spiral rolls 16 arranged in parallel, and are integrally formed by fixing their bases to the horizontal rods 72, and connect the horizontal rods 72 to the suction case. It is attached to the inside of the side wall 29 made of thin iron plate which is the outer wall of 28.

The front end medium diameter portion 33 of each spiral roll 16 is fixed to the metal frame 31 of the seeding device 12, the front end small diameter portion 34 is made to protrude from the metal frame 31, and the front end small diameter portion 34 of the front roll group A is provided with a gear 73. is attached, and a chain 74 is wound around each gear 73. Front end small diameter portion 34 of the spiral roll 16 of the rear roll group B
A gear 75 is attached to each gear 75, and a chain 76 is wound around each gear 75.

77 is a rotating shaft, and the rotating shaft 77 is installed on the metal frame 31 on the side plate 52 side of the seeding device 12. A mission case 85 is provided on the side of the rotating shaft 77 in the transport direction of the storage case 2, and a gear 78 is fixed to the shaft end of a shaft 98 that projects from the mission case 85.
A bevel gear 79 is fixed to the intermediate portion of the rotating shaft 77 and meshes with a bevel gear 80 fixed to the shaft end of the drive shaft 51 .

Reference numeral 81 denotes a rotating shaft installed on the metal frame 31 on the side plate 53 side of the seeding device 12. A transmission case 85' is provided on the supply side 6, and a gear 82 is attached to the shaft end of a shaft 99 that protrudes from the transmission case 85'. A bevel gear 83 is fixed to the intermediate portion of the rotating shaft 81. A bevel gear 84 is fixed to the outer shaft end of the gear 57 that is pivotally attached to the drive shaft 51, and the bevel gear 83
mesh with.

The transmission cases 85, 85' change the speed of rotation of the rotary shafts 98, 99 to a desired rotation speed. For example, the rotation of the guide roll 93 that moves the pot sheet seedling box 4 moves the pot sheet seedling box 4. This is to change the rotational speed so that a desired number of seeds 20, such as one grain or three seeds, can be dropped into each pot 5 of No. 4.

The spiral roll 16 has a starting end 22 with a low H shape and a terminal end 23 with a high H shape, and when viewed from the side, the axial direction is set so that both ends are higher, and the lower starting end 22 side is the seed supply side. As, the roll group A,
Each drop port 86 of the seed rice supply hopper 14 is opened above the starting end 22 of the rice seed B. 87 is the ground.

A motor 88 is provided in front of the seeding device,
A soil supply device 89 is provided on the downstream side of the motor 88 . The bed soil supply device 89 is formed by a hopper 90, a delivery belt 91, a bed soil supply amount adjustment device 92, and the like.

A plurality of guide rolls 93 for moving the storage case 2 are provided on the horizontal transfer table 1. The guide roll 93 is connected to the motor 88 by a chain 94 and rotated. A gear 96 is fixed to the end of the shaft of the guide roll 93, and is connected to the gear 57 by a chain 97.

(effect) Next, we will discuss the effect.

A pot sheet seedling box 4 is placed on the supply side 6 of the horizontal transfer table 1.
When the storage case 2 fitted with the storage case 2 is placed, it is transferred by the guide roll 93, and the covering soil 10 is supplied into the pot 5 of the pot sheet seedling box 4 below the covering soil supply device 7, and further advances to the bottom of the seeding device 12. leading to.

Each spiral groove 1 of each spiral roll 16 arranged in parallel
7. The crests 18 rotate in a state in which the left and right sides coincide with each other, and on the upper surface between each spiral roll 16, 16,
Seed transfer grooves 21 are formed respectively, and a spiral groove 17 and a fitting groove 19 in which the two spiral grooves 17 are combined are formed at the bottom of the seed transfer groove 21, and the spiral roll 16
When rotates, the fitting grooves 19 of the seed moving grooves 21 move in the direction of the arrow A while being aligned.

When the storage case 2 approaches the lower part of the seeding device 12, a suction device 27 is provided below each spiral roll 16 of the seeding devices 14 and 15, and air is sucked from the suction port 45 of the device 26. Since the suction air blows through the fitting groove 19 from top to bottom and sucks the seeds moving in the seed transfer groove 21 downward, the seeds 20 fit into the fitting groove 19 in an upright state and are removed while being fitted. The seeds are moved along the seed moving groove 21 in the A direction to the terminal end 23 without any movement. The seeds that have moved to the terminal end 23 of the seed transfer groove 21 are dropped through the seed drop port 41 formed between the left and right sides 40, 40 of the engaging portion 39 of the synthetic resin wall 36 provided at the terminal end 23. fall downwards.

When the guide roll 93 is rotated by the motor 88, the rotation of the gear 96 attached to the shaft of the guide roll 93 is transmitted to the gear 57 by the chain 97, and the rotation of the gear 96 is transmitted to the drive shaft 5.
Rotate 1. The rotation of the drive shaft 51 is controlled by the bevel gear 8.
0, is transmitted to the rotating shaft 77 via the bevel gear 79. The rotation of the rotating shaft 77 is changed in speed by a transmission case 85 provided on the rotating shaft 77, and then the changed speed is transferred to the shaft 98, the gear 78, and the gear 7.
5. Rotate each spiral roll 16 of the rear roll group B via the chain 76.

Rotation of the drive shaft 51 is transmitted to the rotating shaft 81 via the bevel gear 84 and the bevel gear 83, and the rotating shaft 81 rotates. A transmission case 85' is provided on the rotating shaft 81, and a gear 82 is fixed to a shaft 99 protruding from the transmission case 85', and the gear 82 is wound around the chain 74 to rotate each gear 73. The spiral rolls 16 of the front roll group A are rotated.

The transmission cases 85 and 85' change the speed of rotation of the rotating shafts 77 and 81 so that the guide roll 93 and the spiral roll 16 rotate at a predetermined ratio. 20 seeds in the center of each pot 5 of the seedling box 4
It rotates in synchronization with the transport speed of the storage case 2 so that a desired number of grains, such as one grain at a time, two grains at a time, or three grains at a time, fall. Furthermore, in the case of a single-thread spiral, one grain falls when each spiral roll 16 rotates once, while in the double-thread spiral, two grains fall when each spiral roll 16 rotates once, and in the case of a multi-thread spiral, each spiral roll 16
Since a large number of seeds fall when the seed rotates once, the desired number of seeds are dropped by changing the rotational speed using the spiral roll 16 used.

However, the seeds 2 that fell from the seed drop opening 41
0, below the seed drop opening 41, the U-shaped groove 42 is surrounded by the metal frame 31, and the same number of drop chutes 35 as the seed transfer grooves 21 are formed in a substantially square (or U-shaped) shape. Since the lower end portion 43 is located directly above the pot 5 of the pot sheet seedling box 4, the seeds that fall one by one from the seed drop opening 41 are guided by the falling chute 35 and placed in the pot sheet seedling box 4. The grains fall one by one into the center of pot 5. In this sowing, the seeding device 14 initially supplies the seeds 20 into the odd-numbered pots 5 in the horizontal direction of the pot sheet seedling box 4, and the seeding device 14 does not supply the seeds 20 into the even-numbered pots 5 in the horizontal direction. . Then, when the storage case 2 moves below the seeding device 15, the seeds 20 are placed in the even-numbered pots 5.
will be supplied.

When seeds 20 are supplied from the seed supply hopper 13 to the seed moving groove 21 , the spiral rolls 16 rotate together and the seeds move to the adjacent seed moving groove 21 .
A sloped surface 68 on the rotation rising side 67 of the spiral roll 16 is formed wide and long on the upper surface of the second side.
8 toward the rotation rising side 67 to form a guide 66 and serve as a wall, seeds do not move to adjacent seed transfer grooves 21 and seeds are evenly supplied to each seed transfer groove 21. It turns out.

The rotating brush 47 is connected to the gear 96 of the guide roll 93.
, the drive shaft 51 is rotated, and the rotating arm 4
Driving pulleys 54, 54' are fixed to the outer side of the driving shaft 51 at the lower ends of 9, 50, and the shaft 4 of the rotating brush 47 is
Belts 56 and 56' are passed around passive pulleys 55 and 55' fixed to the drive pulleys 8, and the shaft 48 is rotated, so that the rotary brush 47 is rotated so as to sweep the seeds back toward the starting end 22 side. Therefore, the rotating brush 47 removes excess seeds (seeds that are not fitted into the fitting groove 19) from the starting end 2 by rotating the rotating brush 47.
While sweeping back to the second side, the awns of the seed rice with awns adhere to the rotating brush 47 and rotate together, and are collected in the seed receiving box 61. Therefore, the seed transfer groove 2
Since only the rice seeds without awns are moved in 1, they are easily fitted into the fitting grooves 19, and each grain is reliably moved one by one. At this time, the rotating brush 47 that smoothes the seeds moving in the seed moving groove 21 needs to have its tip positioned on the upper surface of the seed moving groove 21 . The adjustment screw 63 is attached to the side plates 52, 5 of the seeding device 12.
The rotary arm 4
I support 9,50. Then, when the adjusting screw 63 is rotated clockwise, the horizontal rod 59 rises, and the rotating arms 49 and 50 are rotated upward about the drive shaft 51.
Conversely, when the adjusting screw 63 is rotated to the left, the horizontal rod 59 is lowered, and the rotating arms 49 and 49 rotate around the drive shaft 51.
50 is rotated downward, the shaft 48 of the rotating brush 47 moves up and down in the elongated holes 95 of the side plates 52 and 53 to adjust the degree of contact of the rotating brush 47 with the spiral roll 16.

The storage case 2 is then further moved forward by the guide rolls 93, and the bed soil is supplied by the bed soil supply device 89, and sowing is completed.

(Effects) In the present invention, a large number of spiral rolls 16 each having a spiral groove 17 formed on the outer circumferential surface are arranged in parallel, and the spiral grooves 17 fit together between the spiral rolls 16 to form a fitting groove 19 into which one seed 20 fits. A 〓-shaped seed movement groove 21 is formed at the lower part, and one side of the movement groove 21 is connected to the starting end 2.
2, the other end is the terminal end 23, and the spiral roll 16
Due to the rotation of the seed 2 fitted into the fitting groove 19,
0 from the starting end 22 to the terminal end 23 and sowing from the terminal end 23, the sowing device in which the rotation speed of the spiral roll 16 is adjustable;
A horizontal transfer table 1 for transferring the storage case 2 fitted with the pot sheet seedling box 5 is provided below the seed transfer groove 21, and the rotational speed of the spiral roll 16 is set relative to the moving speed of the pot sheet seedling box 5. A seeding device is equipped with a seeding device that can be adjusted to seed one to several seeds, and a large number of spiral rolls 16 having spiral grooves 17 formed on the outer peripheral surface are arranged side by side.
The spiral grooves 17 are combined between the 6 spaces to form a cross-shaped seed transfer groove 21 with a fitting groove 19 formed at the bottom into which one seed 20 fits, and one of the transfer grooves 21 is connected to the starting end 22 to the other. is the terminal end 23, and the seeds 20 fitted in the fitting groove 19 are moved from the starting end 22 to the terminal end 23 by the rotation of the spiral roll 16, and the seeds 20 are sown from the terminal end 23. This is a seeding device that is attached to a moving machine and that allows the rotation speed of the spiral roll 16 to be adjusted. Since the seeds are dropped one by one, the desired number of seeds can be sown easily and easily in each pot of pot sheet paper.

(b) In the above case, since the rotation speed of the spiral roll 16 can be adjusted to rotate at a constant ratio to the rotation speed of the guide roll 93, a desired number of seeds can be dropped.

(c) By synchronizing the rotation speed of the spiral roll 16 and the transport speed of the storage case 2, it is possible to accurately sow seeds into each pot 5 of the pot sheet seedling box 4.

2) It has the effect of eliminating the need for thinning work after sowing in the field.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional side view of the whole, Fig. 2 is a perspective view of the main part, Fig. 3 is a perspective view of the main part, Fig. 4 is a plan view of the main part,
Figure 5 is a side view of the main part, Figure 6 is a side view of the main part, and Figure 7 is a side view of the main part.
Figure 8 is a perspective view of the falling chute, Figure 9 is a plan view of the guide, Figure 10 is a vertical rear view of the guide, Figure 11 is a partial vertical side view of the guide, FIG. 12 is a working state diagram. Explanation of symbols, 1...Horizontal transfer table, 2...Storage case, 3...Support leg, 4...Pot sheet seedling box, 5...Pot, 6...Supply side, 7...Soil covering supply device, 8...Hopper, 9...Feeding belt, 10 ... Soil covering, 11... Pressing roller, 12... Seeding device, 13... Rice seed supply hopper,
14... Front side dotting device, 15... Rear side dotting device,
16... Spiral roll, 17... Spiral groove, 18... Spiral crest, 19... Fitting groove, 20... Seed, 21... Seed moving groove, 22... Starting end, 23... Terminating end, 24... Roll part, 25... Shaft , 26... protrusion, 27... suction device,
28...Suction case, 29...Side wall of the suction case, 3
0...Protrusion part, 31...Metal frame, 32...Front end large diameter part, 33...Front end medium diameter part, 34...Front end small diameter part, 3
5... Falling chute, 36... Synthetic resin wall, 37... Side wall of suction case, 38... Upper end portion, 39... Engaging portion,
40...Side part of engaging part, 41...Seed drop opening, 42...
Groove, 43...lower end, 44...side plate of suction case, 4
5...Suction port, 46...Connection part, 47...Rotating brush,
48... Axis, 49, 50... Rotating arm, 51... Drive shaft, 52, 53... Side plate of seeding device, 54, 54'
... Drive pulley, 55, 55'... Passive pulley, 56,
56'...belt, 57...gear, 58...support rod, 5
9...Horizontal rod, 60...Mounting frame, 61...Seed receiver box, 62
...Side plate of seed receiver box, 63...Adjustment screw, 64...Socket plate, 65...Lower end, 66...Guide, 67...Rotation upward side, 68...Slanted surface, 69...Rotation downward side, 70...
Inclined surface, 71...Tip, 72...Horizontal rod, 73...Gear, 74...Chain, 75...Gear, 76...Chain,
77... Rotating shaft, 78... Gear, 79, 80... Bevel gear, 81... Rotating shaft, 82... Gear, 83, 84... Bevel gear, 85, 85'... Mission case, 86...
Drop opening, 87... Ground, 88... Motor, 89... Soil supply device, 90... Hopper, 91... Feeding belt,
92... Soil supply amount adjustment device, 93... Guide roll, 9
4...Chain, 95...Elongated hole, 96...Gear, 97...Chain, 98...Shaft, 99...Shaft.

Claims (1)

[Claims] 1. Spiral roll 1 with spiral grooves 17 formed on the outer peripheral surface
6 are arranged in parallel, and the spiral grooves 17 are joined between the spiral rolls 16 to form a round-shaped seed transfer groove 21 in which a fitting groove 19 into which one seed 20 fits is formed at the lower part. One of the grooves 21 is a starting end 22 and the other is a terminal end 23, and by rotation of the spiral roll 16, the seeds 20 fitted in the fitting groove 19 are moved from the starting end 22 to the terminal end 23. 23
In those that sow more seeds, the spiral roll 16
A seeding device whose rotation speed is adjustable. 2. In claim 1, a horizontal transfer table 1 for transferring a storage case 2 fitted with a pot sheet seedling box 5 is provided below the seed transfer groove 21, and the rotation speed of the spiral roll 16 is , A seeding device which can adjust the moving speed of the pot sheet seedling box 5 and enables spot sowing of one to several seeds. 3 In the item of claim 1, a large number of spiral rolls 16 having spiral grooves 17 formed on the outer peripheral surface are arranged in parallel, and the spiral grooves 17 fit between the spiral rolls 16 so that one seed 20 fits. A lattice-shaped seed transfer groove 21 with a fitting groove 19 formed at the bottom thereof is formed,
One of the moving grooves 21 is a starting end 22 and the other is a terminal end 23, and by rotation of the spiral roll 16, the seeds 20 fitted in the fitting groove 19 are moved from the starting end 22 to the terminal end 23, A sowing device in which a sowing device 12 for sowing seeds 20 from a terminal end portion 23 is attached to a moving machine, and the rotation speed of the spiral roll 16 can be adjusted.