JP2022032779A - Seeding device and synchronous adjustment method of the same - Google Patents

Abstract

To solve a problem in which, conventionally, a suppression protrusion roller of a bed soil suppression device and the suppression protrusion roller of a seed suppression device are configured to be separately rotated by the rotation of an engaging projection engaged with an engaging hole of a nursery container, and therefore the synchronous adjustment of the rotation of the suppression projection of the front and rear suppression rollers is very troublesome.SOLUTION: A seeding device has longitudinally juxtaposed suppression devices for supplying bed soil and seeds into a pot P of a nursery container A being transferred, and suppressing the bed soil and seeds in the pot P by suppression protrusion rollers 32, 32A having suppression projections 31, where a rear side gear 45 and a front side gear 46 are provided in a rotating shaft 37 of the front and rear suppression protrusion rollers 32, 32A, respectively; a chain 47, having a longer length with an allowance than a distance between the rear side gear 45 and the front side gear 46, is wound around the rear side gear 45 and the front side gear 46, and is synchronized with the transfer of the nursery container A by transfer means 2 to be driven and rotated; and a gear 48 lifted or lowered by a spring and a gear 50 that is position adjustable with respect to the chain 47 are engaged in the chain 47.SELECTED DRAWING: Figure 1

Description

The present invention relates to a seeding device and a method for synchronously adjusting the seeding device.

Conventionally, the floor soil is supplied to each of the vertical and horizontal pots of the seedling raising container being transferred, then the floor soil in the pot is suppressed by the suppression protrusions fitted to the pots, and then the seeds are supplied and the supplied seeds are used. A method of suppressing is known (Patent Document 1).

Japanese Unexamined Patent Publication No. 2000-21508

In the above-mentioned known example, a floor soil suppression device for suppressing floor soil and a seed suppression device for suppressing seeds are provided, but the suppression protrusion roller of the floor soil suppression device and the suppression protrusion roller of the seed suppression device engage the seedling raising container. Since it is configured to be rotated by the rotation of the engaging protrusion engaged with the hole, there is a problem that the rotational force is not sufficient, and therefore the suppression pressure is weakened.
In addition, the suppression protrusion roller of the floor soil suppression device and the suppression protrusion roller of the seed suppression device are configured to rotate separately by the rotation of the engagement protrusion engaged with the engagement hole of the seedling raising container, so that the front and rear suppression rollers are suppressed. There is a problem that synchronous adjustment of the rotation of the protrusion is very troublesome.
In the present application, the drive mechanism of the seeding device is devised to increase (increase) the compression pressure and facilitate the synchronous adjustment of the rotation of the compression projections of the front and rear compression projection rollers.

According to the first aspect of the present invention, the bed soil and seeds are supplied to the pot P of the seedling raising container A being transferred by the transfer means 2 of the transfer table 1, and the bed soil and seeds in the pot P are suppressed by the suppression protrusion roller having the suppression protrusion 31. In the case where the compression devices for compression by 32 and 32A are arranged side by side in the front and rear, the rear gear 45 and the front gear 46 are provided on the rotating shafts 37 of the front and rear compression protrusion rollers 32 and 32A, respectively, and the rear gear 45 and the front gear 46 are provided. The chain 47 is hung around the chain 47, and the chain 47 is driven and rotated in synchronization with the transfer of the seedling raising container A by the transfer means 2, so that the length is set to allow a margin from the distance between the rear gear 45 and the front gear 46. The 47 is a seeding device in which a gear 48 that moves up and down by a spring and a gear 50 whose position can be adjusted with respect to the chain 47 are meshed with each other.
According to the second aspect of the present invention, the position adjusting gear 50 is a seeding device that meshes with a chain 47B that moves on the tension side of the chain 47 between the rear gear 45 and the front gear 46.
According to the third aspect of the present invention, the position adjusting gear 50 is pivotally mounted on the tip of the arm 55, the arm 55 is rotatably attached to the support frame 38 by the shaft 56, and the gear 50 is adjusted between the arm 55 and the support frame 38. The seeding device is configured so that the position of the position adjusting gear 50 with respect to the moving path can be changed by providing the bolt 58 and moving the adjusting bolt 58.
According to the fourth aspect of the present invention, the drive rotation of the motor 69 for driving the transfer protrusion 43 for transferring the seedling raising container A is transmitted to the intermediate shaft 73 of the rear gear 45, and the rear transmission gear 61 provided on the intermediate shaft 73 is transmitted. The seeding device is such that the passive gear 76 of the compression protrusion roller 32 is meshed with the passive gear 78 of the compression protrusion roller 32A by meshing with the front transmission gear 60 provided on the front intermediate shaft 77 of the front gear 46.
In the invention of claim 5, a bed soil supply device 10 for supplying bed soil and a seed supply device 15 for supplying seeds are provided above the transfer means 2 of the transfer table 1 in the pot P of the seedling raising container A. Suppressing projection rollers 32 and 32A having suppression projections 31 for suppressing the inside of the pot P are provided on the front side of the floor soil supply device 10 and the front side of the seed supply device 15, respectively, and are suppressed in synchronization with the transfer of the pot P of the seedling raising container A. A chain 47 is hung between the rear gear 45 that is rotationally transmitted to the protrusion roller 32 and the front gear 46 that is rotationally transmitted to the front compression protrusion roller 32A, and the distance between the rear gear 45 and the front gear 46 is increased. In the chain 47 having a length that allows a margin, a gear 48 that moves up and down by a spring and a gear 50 that can be adjusted in position with respect to the tension side chain 47B are meshed with each other, and the tension side chain 47 during rotation transmission is engaged. This is a method for synchronously adjusting the seeding device, in which the gear 50 for adjusting the position is moved in perspective to synchronize the rotation of the compression protrusion 31 between the compression protrusion roller 32 and the compression protrusion roller 32A.

In the invention of claim 1, the length is set to allow a margin from the distance between the rear gear 45 and the front gear 46 that are hung around the rear gear 45 and the front gear 46, and the chain 47 is a gear that moves up and down by a spring. Since the position-adjustable gear 50 is meshed with the 48 and the chain 47, when the position-adjusting gear 50 is moved up and down, the lengths of the upper chain 47B and the lower chain 47B in the chain 47 change. As a result, the phase position of the front gear 46 with respect to the rear gear 45 changes, and as a result, the compression protrusion roller 32 of the floor soil suppression device 30 and the suppression protrusion roller 32A of the seed suppression device 35 do not stop the chain 47. The suppression protrusion 31 can be adjusted synchronously, workability can be improved, and seeding accuracy can be improved.
In the invention of claim 2, since the position adjusting gear 50 meshes with the chain 47B that moves the tension side (lower side) of the chain 47 between the rear gear 45 and the front gear 46.
The phase of the front gear 46 is displaced by the perspective (up and down) movement of the position adjusting gear 50 with respect to the chain 47B, so that the compression projection roller 32 of the floor soil suppression device 30 and the suppression projection 31 of the suppression projection roller 32A of the seed suppression device 35 are displaced. Synchronous adjustment is possible, and the gear 48, which moves up and down with a spring as the position adjustment gear 50 moves in perspective (up and down) with respect to the chain 47B, can tension the chain 47A without loosening, and the tooth jump of the chain 47 ( Synchronous adjustment is possible without causing the frame jumping phenomenon, and the position adjustment gear 50 can support the chain 47B, which tends to loosen due to gravity, and the power transmission efficiency of the chain 47 can be improved. Therefore, it becomes a rational structure.
In the invention of claim 3, the position adjusting gear 50 is pivotally mounted on the arm 55, the arm 55 is rotatably attached to the support frame 38 by the shaft 56, and the adjustment bolt 58 is between the arm 55 and the support frame 38. The position of the gear 50 for position adjustment with respect to the chain 47 is changed by moving the adjustment bolt 58. Therefore, the support of the chain 47B by the gear 50 for position adjustment is further ensured, and synchronous adjustment is performed. It can be done easily.
In the invention of claim 4, the drive rotation of the motor 69 for driving the transfer protrusion 43 for transferring the seedling raising container A is transmitted to the intermediate shaft 73 of the rear gear 45, and the compression protrusion roller 32 is transmitted to the gear 76 provided on the intermediate shaft 73. Since the passive gear 78 of the seed compression protrusion roller 32A is meshed with the front transmission gear 60 provided on the front intermediate shaft 77 of the front gear 46, the seedling raising container A is transferred by the transfer means 2. Synchronous adjustment with the rotation of the front and rear compression protrusion rollers 32 can be easily performed.
In the invention of claim 5, a bed soil supply device 10 for supplying bed soil and a seed supply device 15 for supplying seeds are provided above the transfer means 2 of the transfer table 1 in the pot P of the seedling raising container A. Suppressing protrusion rollers 32 and 32A having suppression protrusions 31 for suppressing the inside of the pot P are provided on the front side of the floor soil supply device 10 and the front side of the seed supply device 15, and the suppression protrusion rollers are synchronized with the transfer of the pot P of the seedling raising container A. A chain 47 is hung between the rear gear 45 that is rotationally transmitted to 32 and the front gear 46 that is rotationally transmitted to the front compression protrusion roller 32A, so that there is a margin from the distance between the rear gear 45 and the front gear 46. The chain 47 has a gear (tension gear) 48 that moves up and down with a spring, and a gear 50 that can be adjusted in position with respect to the chain 47. Since this is a synchronous adjustment method of the seeding device that synchronizes the compression protrusion roller 32 and the compression protrusion 31 of the compression protrusion roller 32A by moving the gear 50 up and down, the front and rear with respect to the transfer of the pot P without affecting the seeding work. The rotations of the suppression protrusion rollers 32 and 32A can be synchronized.

Side view of the seeding device. Side view of the seed supply device. Horizontal axis of the seed feeder The plan view of the unfolded state of the feeding roll and the scraped body. The same perspective view. Top view and side view of the transmission mechanism part of the seeding device. Side view of the suppression roller. Schematic plan view and schematic side view of the transmission mechanism portion of the suppression roller. (A) Side view of the suppression roller before synchronous adjustment. (B) Side view of the suppression roller after synchronous adjustment.

Explaining one embodiment of the present invention with a figure, 1 is a transfer table of a seeding device, and a support leg 4 is provided on a frame 3 having a transfer means 2 and placed on the floor (FIG. 1).
The transfer means 2 transfers the seedling raising container A (FIG. 2) from the start end to the end portion, and the seedling raising container A is referred to by a person skilled in the art as a cell tray or a pot sheet, and is formed by arranging a large number of pots P side by side in front, back, left and right. is doing.
A supply space 6 for the seedling raising container A is provided above the starting end of the transfer table 1, and a floor soil supply device 10 for supplying the floor soil to the seedling raising container A being transferred from above is provided on the front side of the supply space 6.
The configuration of the floor soil supply device 10 is arbitrary, and may be configured to include at least an upper floor soil supply hopper 11 and a floor soil supply belt 12 below the floor soil supply hopper 11 (FIG. 1).

A seed supply device 15 for supplying seeds to the pot P of the seedling raising container A is provided on the front side of the bed soil supply device 10.
The seed supply device 15 is provided with a seed supply hopper 16 above and a horizontal axis feeding roll 17 below the seed supply hopper 16 (FIG. 2). On the outer peripheral surface of the horizontal axis feeding roll 17, a feeding recess 18 into which a plurality of seeds are fitted is formed (FIGS. 3 and 4). The feeding recess 18 is formed in a size that allows a plurality of seeds to fit in the pot P. The feeding recess 18 of the present embodiment is formed to have a size in which an average of 4 seeds can be fitted.
That is, if the feeding recess 18 is sized to fit one or two seeds, the seeds may not fit in each pot P of the seedling raising container A, and the pot P in which the seeds do not fit is missing. Therefore, it is not preferable, and if the feeding recess 18 is formed to a size that allows an average of 4 seeds to fit, at least 2 or more seeds always enter the pot P, so that the occurrence of stock shortage can be prevented, which is preferable. (Even if one grain is fitted, the germination rate is not 100%, so there is a risk of missing stock, and those skilled in the art treat it as missing stock).

The feeding recesses 18 are arranged side by side in the circumferential direction and the generatrix direction in accordance with the pot P of the seedling raising container A, and slits 19 are formed in each feeding recess 18 in the circumferential direction. The slit 19 is formed in the circumferential direction, and the slit 19 is provided with a scraping body 20 that fits into the feeding recess 18 and scrapes out seeds that do not fall. The scraped body 20 is formed narrower than the slit 19 and fitted into each slit 19.
Since an average of 4 seeds are fitted in the feeding recess 18, two slits 19 are formed in one feeding recess 18 to ensure that the seeds fall.
A rotation return brush 21 for returning seeds that do not fit in the feeding recess 18 is provided at an upper position on the rotation descending side from the position directly above the horizontal axis feeding roll 17 (FIG. 2). The rotation return brush 21 is driven and rotated in the opposite direction on the contact surface with the horizontal axis feeding roll 17. A seed derivative 22 is provided on the side surface of the horizontal axis feeding roll 17 on the rotation descending side of the rotation return brush 21. Although the seed derivative 22 is not shown, a synthetic resin sheet is polymerized on the surface of urentane or the like, the sheet member is brought into contact with the outer peripheral surface of the horizontal axis feeding roll 17, and the horizontal axis feeding roll 17 is slid on the rotation return brush 21. The seeds fitted in the feeding recess 18 are guided and guided to the lower surface portion of the horizontal axis feeding roll 17 by rotating while in contact with each other.

At a position above the transfer table 1 on the front side of the seed supply device 15, a soil cover supply device 25 for supplying soil cover to the seedling raising container A being transferred from above is provided (FIG. 1).
The configuration of the soil covering supply device 25 is arbitrary, and may be configured to include at least an upper soil covering supply hopper 26 and a soil covering supply belt 27 below the soil covering supply hopper 26.
Therefore, a floor soil suppression device (rear side suppression device) 30 is provided on the transfer table 1 on the front side of the floor soil supply device 10. The floor soil suppression device 30 suppresses the floor soil in each pot P of the seedling raising container A (FIG. 1).
The floor soil suppression device 30 is composed of a compression projection roller 32 having a compression projection 31 fitted to each pot P of the seedling raising container A. A plurality of pressure-reducing protrusions 31 are arranged side by side so as to rotate in synchronization with the pot P of the seedling raising container A in the rotation direction of the pressure-reducing protrusion roller 32, and a plurality of pressure-reducing protrusions 31 are also arranged side by side in the left-right direction corresponding to the pot P of the seedling raising container A. do.
Further, a seed suppression device (front suppression device) 35 is provided on the transfer table 1 on the front side of the seed supply device 15. The seed suppression device 35 suppresses the seeds sown in each pot P of the seedling raising container A and has the same configuration as the bed soil suppression device 30, and the seed suppression device 35 is also used in the pot P of the seedling raising container A. A seed suppression projection roller 32A having a corresponding suppression projection 31 is provided and configured.

The compression protrusion roller 32 and the seed compression protrusion roller 32A are vertically inserted into the through hole 39 of the support frame 38 provided on the transfer table 1 side, and the rotation shaft 37 is always downward in the through hole 39 due to the elasticity of the spring 40. It is urged to be located at (Fig. 6).
The transfer means 2 of the transfer table 1 is configured to transfer the seedling raising container A supplied to the supply space 6 of the transfer table 1 by the transfer protrusion 43, and the movement of the pot P by the transfer protrusion 43 and the feeding recess 18 of the seed supply device 15 are used. It is configured to be synchronized with the seed feeding.
Similarly, the transfer of the seedling raising container A by the transfer projection 43 and the rotation of the compression projection 31 of the suppression projection roller 32 (seed suppression projection roller 32A) are synchronized with each other to synchronize the suppression projection 31 of the suppression projection roller 32 (seed suppression projection roller 32A). Is configured to fit into the pot P.

In this case, unless the suppression projection 31 of the floor soil suppression device 30 and the suppression projection 31 of the seed suppression device 35 are rotated in synchronization, the suppression projection 31 of the seed suppression device 35 does not fit well into the pot P of the seedling raising container A. However, inconveniences such as poor seed suppression and damage to the seedling raising container A occur, but in the conventional transmission configuration, it is very troublesome to synchronize the suppression projection 31 of the floor soil suppression device 30 with the suppression projection 31 of the seed suppression device 35. Moreover, the seeding device had to be stopped, and in this respect as well, it was troublesome to synchronize the suppression projection 31 of the soil suppression device 30 with the suppression projection 31 of the seed suppression device 35.
In the present invention, after the suppression protrusion roller 32 of the floor soil suppression device 30 and the seed suppression protrusion roller 32A of the seed suppression device 35 are driven and rotated in the rotational transmission path of the floor soil suppression device 30 and the seed suppression device 35 of the seeding device. A gear (tension gear) 48 that constantly tensions the chain 47 and a gear (position adjustment support gear) 50 that constantly tensions the chain 47 are meshed with the chain 47 that is hung between the side gear 45 and the front gear 46, and the position is changed. By changing the position of the adjustment support gear 50 with respect to the chain 47, synchronous adjustment is possible.

The tension gear 48 is attached to the tip of the tension arm 51, and one end of the tension spring 52 is locked to the tension arm 51 so that the chain 47 is constantly tensioned.
On the other hand, the position adjusting support gear 50 meshes with the lower chain 47B on the tension side opposite to the chain 47 with which the tension gear 48 is meshed, and the meshing position can be changed up and down.
The position adjusting support gear 50 is axially mounted on the arm 55, the arm 55 is rotatably attached to the frame 3 of the transfer table 1 by a shaft 56, an adjusting bolt 58 is provided between the arm 55 and the frame 3, and the adjusting bolt is provided. By moving the 58 back and forth, the position of the position adjusting support gear 50 with respect to the chain 47 can be changed.

Therefore, when the position adjusting support gear 50 is moved downward with respect to the lower chain 47B, the lower chain 47B is relaxed, and when the position adjusting support gear 50 is moved upward with respect to the lower chain 47B, the lower chain 47B is relaxed. Tension Chen 47B.
As a result, when the position adjusting support gear 50 is moved downward with respect to the lower chain 47B from the state of FIG. 8A, the front gear 46 and the concentric front transmission gear 60 are moved in FIG. 8A. When the position adjusting support gear 50 is rotated counterclockwise and the position adjusting support gear 50 is moved upward with respect to the lower chain 47B, the front gear 46 and the front transmission gear 60 are rotated clockwise in FIG. 8A. ..

To facilitate understanding, the vertical action of the position adjusting support gear 50 will be described assuming that the chain 47 is stopped. In FIG. 8A, the position adjusting support gear 50 is the lower chain. 47B is pushed up, and in this state, the virtual center line T of the front gear 46 and the front transmission gear 60 is inclined in the clockwise rotation direction from the vertical, whereas the rear gear 45 and the rear transmission gear 61 The virtual center line t is located at a vertical position, and the mismatch between the virtual center line T and the virtual center line t synchronizes the suppression protrusion roller 32 of the floor soil suppression device 30 with the seed suppression protrusion roller 32A of the seed suppression device 35. It shows that it is not.

In this state, the upper chain 47A between the rear transmission gear 61 of the floor soil suppression device 30, the concentric rear gear 45, the front transmission gear 60 of the seed suppression device 35, and the concentric front gear 46 is locked. However, when the position adjusting support gear 50 is moved down by the adjusting bolt 58, the lower chain 47B between the front transmission gear 60 of the floor soil suppression device 30 and the front transmission gear 60 of the seed suppression device 35 is positioned. The adjustment support gear 50 is slackened by the amount lowered, and the tension gear 48 moves downward by this slack, and as a result, the upper chain 47A is pulled toward the rear side gear 45 as shown in FIG. 8B, and the front side gear The virtual center line T of the front gear 46 and the front transmission gear 60, which the 46 and the front transmission gear 60 rotate counterclockwise from FIG. 8A and are inclined in the clockwise rotation direction from the vertical in FIG. 8A, is shown in FIG. It becomes vertical as in 8 (B).

On the contrary, when the position adjusting support gear 50 is moved upward by the adjusting bolt 58, the virtual center line T of the vertical front gear 46 and the front transmission gear 60 in FIG. 8 (B) becomes as shown in FIG. 8 (A). It rotates in the clockwise direction and tilts.
Therefore, the seed supply device 15 is detachably attached to the transfer table 1, and the bed soil suppression device 30 and the seed suppression device 35 are attached to the transfer table 1 before the seed supply device 15 is attached to the transfer table 1. Assemble the rear transmission gear 61 of the suppression device 30 and the front transmission gear 60 of the seed suppression device 35 while visually observing them so as to be roughly synchronized, then assemble the seed supply device 15 to the transfer table 1, and then the floor soil. When the chain 47 is hung between the rear gear 45 of the suppression device 30 and the front gear 46 of the seed suppression device 35, the assembly is completed, and in this state, the transfer means 2 is idled to open the seedling raising container A. When the support gear 50 for adjusting the position of the chain 47 is moved up and down while observing the state in which the suppression projection 31 of the seed suppression device 35 is fitted to the pot P of the seedling raising container A, the suppression projection roller of the floor soil suppression device 30 is transferred. The initial setting of synchronization between 32 and the seed suppression protrusion roller 32A of the seed suppression device 35 is completed, and the seeding operation can be performed.

Further, even during the sowing operation, when the suppression protrusion 31 of the seed suppression device 35 does not fit the pot P well, the position adjusting support gear 50 is moved up and down with respect to the chain 47 to suppress the seeds to the pot P. Since the fitting position of the compression projection 31 of the device 35 can be changed and adjusted synchronously, the sowing work can be continued smoothly, and the sowing device can be adjusted synchronously without stopping one by one, so that the work efficiency can be improved.
The adjusting bolt 58 may be provided in contact with the upright portion 55A of the arm 55 to which the position adjusting support gear 50 is attached so as to rotate the arm 55 upward about the center of the shaft 56, and may be provided on the frame 3 of the transfer table 1. It is movably screwed to the provided mounting member 59. Further, when the adjusting bolt 58 is moved in the direction away from the upright portion 55A (rear side), it is pushed by the lower chain 47B and the position adjusting support gear 50 and the arm 55 rotate downward.

The configuration of the rotary transmission mechanism of the floor soil suppression device 30 and the seed suppression device 35 of the seeding device is arbitrary, but as an example, the transfer protrusions 43 are provided in the transfer chain 65 at predetermined intervals, and the transfer chain is provided. The 65 is configured to be driven by rotating the front drive gear 66 and the rear gear 67 by transmitting the rotation of the output gear 70 of the motor 69 to the transfer chain 65, and separately intermediate output to the output shaft 71 of the output gear 70. A gear 72 is provided, a chain 75 is hung between the intermediate output gear 72 and the gear 74 of the intermediate shaft 73, and the rear transmission gear 61 separately provided on the intermediate shaft 73 is fixed to the rotating shaft 37 of the compression protrusion roller 32. The passive gear 76 is engaged to synchronize the transfer of the seedling raising container A with the rotation of the compression protrusion roller 32 of the floor soil suppression device 30.

Then, the rear gear 45 is separately provided on the intermediate shaft 73 provided with the gear 74, and the chain 47 is hung between the rear gear 45 and the front gear 46 of the front intermediate shaft 77 and fixed to the front intermediate shaft 77. The passive gear 78 fixed to the rotating shaft 37 of the seed compression protrusion roller 32A is meshed with the front transmission gear 60 of the above, and the rotation is transmitted to the seed compression protrusion roller 32A.
In this case, the transmission gears 60 and 61 and the passive gears 76 and 78 of the compression protrusion roller 32 and the seed compression projection roller 32A have a gear ratio of 1: 1 to further facilitate synchronous adjustment.

(Action of Embodiment)
The present invention has the above configuration, and when the motor 69 is driven, the drive rotation of the motor 69 is transmitted to the transfer chain 65, the transfer protrusion 43 provided in the transfer chain 65 moves, and the drive of the motor 69 is driven by the intermediate output gear 72. And to the gear 74 via the chain 75, the intermediate shaft 73 is driven and rotated, and the drive rotation of the intermediate shaft 73 is transmitted to the compression protrusion roller 32 of the floor soil suppression device 30 by the rear transmission gear 61 and the passive gear 76. The compression protrusion 31 of the floor soil suppression device 30 rotates synchronously with the pot P of the seedling raising container A to be transferred by the transfer projection 43.
Further, the rotation of the rear gear 45 provided on the intermediate shaft 73 drives and rotates the front gear 46 of the front intermediate shaft 77 via the chain 47, and the front transmission gear 60 of the front intermediate shaft 77 drives the seed suppression device 35. The passive gear 78 of the protrusion roller 32A is rotated synchronously with the pressure-reducing protrusion roller 32 of the floor soil suppression device 30.

In this state, when the seedling raising container A is supplied to the supply space 6 of the transfer table 1, the seedling raising container A is transferred by the transfer projection 43 to reach the lower part of the floor soil supply device 10, and the floor soil supply device 10 is used to supply the floor soil. The soil that has been supplied and supplied to the pot P of the nursery container A is suppressed by the suppression projection 31 of the floor soil suppression device 30.
At this time, the suppression protrusion 31 of the floor soil suppression device 30 suppresses the floor soil in the pot P and rotates counterclockwise in FIG. 1, so that the counterclockwise suppression projection 31 pushes the pot P forward and the seedling raising container. A is moved forward, and the engaging projection 17A of the seed supply device 15 engaged with the engagement hole 17B of the seedling raising container A is rotated to rotate the feeding recess 18 of the horizontal axis feeding roll 17 of the seed feeding device 15 to the seedling raising container. It is rotated synchronously with the transfer of the pot P of A, and the seeds of a plurality of seeds of the pot P are fed out.

The seedling raising container A that received the seed supply is pushed forward by the subsequent seedling raising container A, reaches the lower part of the seed suppression device 35, and is contained in the pot P by the suppression projection 31 of the seed suppression projection roller 32A of the seed suppression device 35. The seeds move forward while being suppressed, reach below the soil cover supply device 25, and are supplied with soil cover by the soil cover supply device 25 to complete sowing.
The transfer table 1 on the front side of the floor soil supply device 10 is provided with a floor soil suppression device (rear side suppression device) 30, and the transfer table 1 on the front side of the seed supply device 15 is provided with a seed suppression device (front suppression device). 35 is provided, and the suppression protrusion roller 32 of the floor soil suppression device 30 and the seed suppression protrusion roller 32A of the seed suppression device 35 rotate in synchronization with the transfer of the pot P by the transfer projection 43, and the suppression projection roller is transferred to the pot P being transferred. The suppression projection 31 of 32 and the suppression projection 31 of the seed suppression projection roller 32A are fitted to suppress the floor soil or seeds in the pot P, but the suppression projection 31 of the floor soil suppression device 30 and the suppression projection of the seed suppression device 35 are used. If the seed suppression device 35 is not rotated in synchronization with the 31, the suppression protrusion 31 of the seed suppression device 35 will not fit well into the pot P of the seedling raising container A, resulting in inconveniences such as poor suppression of seeds and damage to the seedling raising container A. In the transmission configuration, synchronous adjustment of the suppression protrusion 31 of the floor soil suppression device 30 and the suppression projection 31 of the seed suppression device 35 is very troublesome, and the seeding device must be stopped. Synchronous adjustment of the suppression protrusion 31 of the suppression device 30 and the suppression projection 31 of the seed suppression device 35 was troublesome.

In the present invention, after the suppression protrusion roller 32 of the floor soil suppression device 30 and the seed suppression protrusion roller 32A of the seed suppression device 35 are driven and rotated in the rotational transmission path of the floor soil suppression device 30 and the seed suppression device 35 of the seeding device. Since the tension gear 48 that constantly tensions the chain 47 and the position adjustment support gear 50 for changing the chain position are meshed with the chain 47 that is hung between the side gear 45 and the front side gear 46, the position adjustment support By changing the position of the gear 50 with respect to the chain 47, the compression projection 31 of the compression projection roller 32 and the compression projection 31 of the seed compression projection roller 32A can be synchronously adjusted.

That is, when the position adjusting support gear 50 is moved downward with respect to the chain 47, the chain 47 is relaxed, and when the position adjusting support gear 50 is moved upward with respect to the chain 47, the chain 47 is tensioned. When the position adjusting support gear 50 is moved downward with respect to the chain 47, the front gear 46 and the front transmission gear 60 are rotated counterclockwise in FIG. 8, and the position adjusting support gear 50 is moved with respect to the chain 47. When moved upward, the front gear 46 and the front transmission gear 60 are rotated clockwise in FIG. 8, and as a result, the suppression projection 31 of the compression projection roller 32 of the floor soil suppression device 30 and the seed of the seed suppression device 35 are rotated. The compression projection 31 of the compression projection roller 32A can be rotated synchronously.

Since the tension gear 48 is attached to the tip of the tension arm 51 and the tension spring 52 constantly tensions the chain 47 on the tension arm 51, the tension gear 48 acts on the tension spring 52 to constantly push down the chain 47, and the chain is chained. Always make 47 tense.
On the other hand, the position adjusting support gear 50 meshes with the chain 47 on the side opposite to the chain 47 on which the tension gear 48 is meshed, and the meshing position can be changed up and down. When the 50 is moved downward with respect to the chain 47, the front transmission gear 60 is rotated counterclockwise in FIG. 8, and when the position adjusting support gear 50 is moved upward with respect to the chain 47, the front transmission gear 60 is shown. No. 8 is rotated clockwise, and the suppression protrusion 31 of the suppression protrusion roller 32 and the suppression protrusion 31 of the seed suppression protrusion roller 32A can be rotated synchronously.

In order to facilitate understanding, the following description will be made assuming that the chain 47 is stopped. In FIG. 8A, the position adjusting support gear 50 is in the state of pushing up the chain 47, and in this state, the front transmission gear 60 The virtual center line T is inclined in the clockwise direction from the vertical direction, but in this state, the upper chain 47A between the front transmission gear 60 of the floor soil suppression device 30 and the front transmission gear 60 of the seed suppression device 35 is locked. However, by moving the position adjusting support gear 50 up and down with the adjusting bolt 58, the lower chain 47B between the rear gear 45 of the floor soil suppression device 30 and the front gear 46 of the seed suppression device 35 is the front gear. 45 can be rotated. For example, when the position adjusting support gear 50 is moved downward by the adjusting bolt 58, the front gear 46 rotates counterclockwise and tilts in the clockwise rotation direction from the vertical in FIG. 8A. The virtual center line T of the front gear 46, which has been used, becomes vertical as shown in FIG. 8 (B). On the contrary, when the position adjusting support gear 50 is moved upward by the adjusting bolt 58, the virtual center line T of the vertical front gear 46 in FIG. 8 (B) rotates in the clockwise rotation direction as shown in FIG. 8 (A). And will tilt.

Therefore, the seed supply device 15 is detachably attached to the transfer table 1, and the bed soil suppression device 30 and the seed suppression device 35 are attached to the transfer table 1 before the seed supply device 15 is attached to the transfer table 1. The front transmission gear 60 of the suppression device 30 and the front transmission gear 60 of the seed suppression device 35 are visually assembled so as to be roughly synchronized, then the seed supply device 15 is assembled to the transfer table 1, and then the soil suppression device is used. When the chain 47 is hung between the rear gear 45 of the front transmission gear 60 of the device 30 and the front gear 46 of the front transmission gear 60 of the seed suppression device 35, the assembly is completed, and in this state, the transfer means 2 The seedling raising container A is transferred in an empty operation, and the support gear 50 for adjusting the position of the chain 47 is moved up and down while observing the state in which the suppression protrusion 31 of the seed suppression device 35 is fitted to the pot P of the seedling raising container A. The initial setting of synchronization between the bed soil suppression device 30 and the seed suppression device 35 is completed, and the seeding work can be performed.

Further, even during the sowing operation, when the suppression protrusion 31 of the seed suppression device 35 does not fit the pot P well, the position adjusting support gear 50 is moved up and down with respect to the chain 47 to suppress the seeds to the pot P. Since the fitting position of the compression projection 31 of the device 35 can be changed and adjusted synchronously, the sowing work can be continued smoothly, and the sowing device can be adjusted synchronously without stopping one by one, so that the work efficiency can be improved.

1 ... Transfer stand, 2 ... Transfer means, 3 ... Frame, 4 ... Support leg, 6 ... Supply space, 10 ... Floor soil supply device, 11 ... Floor soil supply hopper, 12 ... Floor soil supply belt, 15 ... Seed supply device, 16 ... seed supply hopper, 17 ... horizontal axis feeding roll, 18 ... feeding recess, 19 ... slit, 20 ... scraper, 21 ... rotation return brush, 22 ... seed derivative, 25 ... soil covering supply device, 26 ... soil covering supply hopper , 27 ... Soil cover supply belt, 30 ... Floor soil suppression device, 31 ... Suppression protrusion, 32 ... Suppression protrusion roller, 32A ... Seed suppression protrusion roller, 35 ... Seed suppression device, 37 ... Rotating shaft, 38 ... Support frame, 39 ... Through hole, 40 ... spring, 43 ... transfer protrusion, 45 ... rear gear, 46 ... front gear, 47 ... chain, 48 ... tension gear, 50 ... position adjustment support gear, 51 ... tension arm, 52 ... tension spring, 55 ... arm, 56 ... shaft, 58 ... adjustment bolt, 60 ... front transmission gear, 65 ... transfer chain, 66 ... front drive gear, 67 ... rear gear, 69 ... motor, 70 ... output gear, 71 ... output shaft, 72 ... Intermediate output gear, 73 ... Intermediate shaft, 74 ... Gear, 75 ... Chain, 76 ... Passive gear, 77 ... Front intermediate shaft, 78 ... Passive gear.

Claims (5)

The bed soil and seeds are supplied to the pot P of the seedling raising container A being transferred by the transfer means 2 of the transfer table 1, and the bed soil and seeds in the pot P are suppressed by the suppression projection rollers 32 and 32A having the suppression projections 31. In the case where the devices are arranged side by side in the front and rear, the rear gear 45 and the front gear 46 are provided on the rotating shafts 37 of the front and rear compression protrusion rollers 32 and 32A, respectively, and the chain 47 is hung around the rear gear 45 and the front gear 46. The chain 47 is driven and rotated in synchronization with the transfer of the seedling raising container A by the transfer means 2, and the length is set to allow a margin from the distance between the rear gear 45 and the front gear 46, and the chain 47 is moved up and down by a spring. A seeding device in which a gear 48 and a gear 50 whose position can be adjusted with respect to a chain 47 are meshed with each other. In claim 1, the position adjusting gear 50 is a seeding device that meshes with a chain 47B that moves on the tension side of the chain 47 between the rear gear 45 and the front gear 46. In claim 1 or 2, the position adjusting gear 50 is pivotally mounted on the tip of the arm 55, the arm 55 is rotatably attached to the support frame 38 by a shaft 56, and is between the arm 55 and the support frame 38. Is a seeding device configured to provide an adjusting bolt 58 and change the position of the position adjusting gear 50 with respect to the moving path of the chain 47 by moving the adjusting bolt 58. In claims 1 to 3, the drive rotation of the motor 69 that drives the transfer protrusion 43 that transfers the seedling raising container A is transmitted to the intermediate shaft 73 of the rear gear 45, and the rear transmission gear provided on the intermediate shaft 73 is transmitted. A seeding device in which the passive gear 76 of the compression protrusion roller 32 is meshed with 61, and the passive gear 78 of the compression protrusion roller 32A is meshed with the front transmission gear 60 provided on the front intermediate shaft 77 of the front gear 46. Above the transfer means 2 of the transfer table 1, a floor soil supply device 10 for supplying the bed soil and a seed supply device 15 for supplying seeds are provided in the pot P of the seedling raising container A, and the front side of the bed soil supply device 10. And the pressure-reducing protrusion rollers 32, 32A having the pressure-reducing protrusions 31 for suppressing the inside of the pot P are provided on the front side of the seed supply device 15, respectively, and rotationally transmitted to the pressure-reducing protrusion rollers 32 in synchronization with the transfer of the pot P of the seedling raising container A. A chain 47 is hung between the rear gear 45 and the front gear 46 that is rotationally transmitted to the front compression protrusion roller 32A, so that the length is longer than the distance between the rear gear 45 and the front gear 46. A gear 48 that moves up and down with a spring and a gear 50 that can be adjusted in position with respect to the chain 47B on the tension side are meshed with the chain 47, and a gear 50 for adjusting the position with respect to the chain 47 on the tension side during rotation transmission. A method for synchronously adjusting a seeding device that synchronizes the rotation of the compression protrusion 31 between the compression protrusion roller 32 and the compression protrusion roller 32A by moving the seedlings in perspective.

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