JP2004065234A - Chemical-applying device for matted-seedling box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a power source for a chemical-applying roll needless, and to make a constant amount of a chemical applied, even when a traveling speed of a matted-seedling box is changed. <P>SOLUTION: A chemical-applying device 13 in which the chemical-applying roll 21 is attached to an lower part of a chemical-applying hopper 20 is located on an upper area of the matted-seedling box N, then rotary wheels 28 positioned on both ends of the chemical-applying roll 21 are each pressed on an upper surface Na of the matted-seedling box N which is traveling to be rotated, so that the chemical-applying roll 21 is rotated at a rotating speed according to the traveling speed of the matted-seedling box N and the chemical is applied to the matted-seedling box N. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a dispensing machine for mat seedling boxes, and in particular, eliminates the need for a dedicated motor for a dispensing roll provided in a dispensing hopper and dispenses a medicine against a change in the moving speed of a mat seedling box conveyed through the dispensing machine body. The rotation speed of the roll automatically follows.
[0002]
[Prior art]
Conventionally, a sowing machine that continuously and automatically sows a mat seedling box has been widely used.
According to Japanese Utility Model Laid-Open No. 57-16405 and the like, as shown in FIG. 14, the conventional seeding machine transports the seedling box b by the transport belt 2, while the seeding roll 4 and the rotating roll 6 are provided on the drive shaft. The seed rice a in the hopper 1 is rotated by the pulleys 7 and 8 and is fed to the seedling box b by the seeding roll 4.
On the other hand, drug application is generally performed at the time of transplantation to a field or after transplantation, and the work at the time of transplantation and the like requires drug application in addition to the original transplantation work, so that preparation for transplantation work is very intensive. It takes a lot of effort and time.
[0003]
In order to automatically perform dispensing at the time of sowing in response to such a situation, a dispensing hopper utilizing the structure of the above-described sowing hopper 1 is provided downstream of the sowing hopper 1 to perform sowing and dispensing at once. What is being developed.
The dispensing hopper has a dispensing roll having a structure similar to that of the seeding roll, and delivers the drug into the seedling box b by being rotated by a dedicated motor.
[0004]
[Problems to be solved by the invention]
However, since the dedicated motor for rotating the drug applying roll is provided separately from the motor for driving the transport belt 2 for feeding the seedling boxes, the number of parts increases.
Also, the seedling box feed speed varies depending on the manufacturer and model of the seeding machine, and the seedling box is not always sent out at a strictly constant speed even with the same seeding machine. In some cases, the relationship with the feeding speed of the seedling may deviate from a required set value, and there is a problem that the amount of medicine applied per one seedling box is not constant.
[0005]
On the other hand, if the rotation speed of the drug dispensing roll is controlled by using a variable speed motor or the like as the dedicated motor in order to adjust the drug dispensing amount, the structure becomes complicated and the cost becomes extremely high.
[0006]
The present invention has been made in view of the above-described problem, and eliminates the need for a dedicated motor for a drug dispensing roll provided in a drug dispensing hopper, and does not complicate the structure, even if the feed speed of the seedling box changes. It is an object of the present invention to provide a dispensing machine that can supply a certain amount of medicine.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention relates to a medicine seedling roll connected to a lower part of a medicine seeding hopper, installed above a moving path of a mat seedling box, and a rotating wheel attached to the medicine seeding roll is moved to the mat seedling to be moved. The mat seedling box is characterized in that it is pressed against the upper surface of the box frame to be driven, and the medicine applying roll is rotated at a rotation speed according to the moving speed of the mat seedling box to apply the medicine to the mat seedling box. Provides drug dispensing equipment.
[0008]
In addition, the above-mentioned medicine applying device is mounted on a seeding machine arranged in parallel on a frame together with a watering device, a seeding device, and a soiling device.
[0009]
With the above configuration, the rotating wheel is pressed against the frame of the mat seedling box, so that the rotating wheel rotates following the movement of the mat seedling box and is transmitted as the rotating power of the drug dispensing roll. A dedicated motor provided for rotation can be eliminated. Accordingly, the structure of the mat seedling box dispenser can be simplified, and the number of parts can be significantly reduced.
In addition, since the rotation of the dispensing roll is directly powered by the mat seedling box, even if the movement speed of the mat seedling box changes, the rotation speed of the dispensing roll automatically changes to respond to it. Therefore, the amount of drug delivered to one mat seedling box can be made constant.
[0010]
Furthermore, since the above-mentioned drug dispensing roll is connected to the drug dispensing hopper, the weight of the entire dispensing device is loaded on the mat seedling box when the rotating wheel is placed on the upper surface of the frame of the mat seedling box. And the mat seedling box and between the mat seedling box and the drive roller.
In addition, when the frame of the said mat seedling box is only in an outer peripheral part, it is suitable to attach the said rotating ring to both sides of the said drug application roll, and to press-contact with the upper surface of both sides of the said mat seedling box.
[0011]
The mat seedling box is conveyed along the moving path by the rotation of a driving roller driven by a power source, and the driving roller is set at a position directly below a rotating wheel of the drug applying roll via the frame of the mat seedling box. ing.
[0012]
As described above, while the drive roller rotating with the power is brought into contact with the lower surface of the mat seedling box and conveyed, the drive roller is positioned directly below the medicine applying roll via the mat seedling box frame. By arranging it in a position between the drive roller and the mat seedling box, and between the drug applying roll and the mat seedling box, the pressure is more strongly pressed, so that the driving force for rotating the drug applying roll can be more stably obtained. .
[0013]
The rotating wheel of the drug applying roll is made of a material having a large frictional resistance on its outer peripheral surface, and / or has a plurality of protrusions protruding from the outer peripheral surface of the rotating wheel, and is pressed against the upper surface of the frame of the moving mat seedling box. The wheel is configured to rotate reliably.
[0014]
By using a material having a large frictional resistance, such as rubber or an elastomer, for the outer peripheral surfaces of the rotating wheels at both ends of the drug applying roll, slippage between the rotating wheels and the mat seedling box can be prevented. On the other hand, the outer periphery of the rotating wheel has a shape in which a plurality of protrusions are protruded, and the protrusions are easily caught on the upper surface of the mat seedling box, thereby preventing slippage between the rotating wheel and the mat seedling box. can do.
[0015]
The lower end of the dispensing device having the dispensing roll and the dispensing hopper is pivotally supported in a cantilever manner on a frame constituting a moving path of the mat seedling box so as to be swingable,
The position of the rotating wheel of the drug applying roll moves up and down in accordance with the height of the outer frame of the mat seedling box and is pressed against the upper surface of the frame.
[0016]
In other words, when the dispensing device is swung down with the cantilever support portion with the frame as a rotation axis from a state in which the dispensing device is opened upward in a swinging manner, the rotating wheels at both ends of the dispensing roll contact the mat seedling box. It is configured to stop when it is done.
Therefore, the rotating wheels at both ends of the dispensing roll can move in the vertical direction, and even if there is a slight difference in the height of the seedling box passing between the rotating wheel and the driving roller, it follows the difference in the height. The vertical position of the rotating wheel is automatically fine-tuned.
[0017]
When an elastic material such as rubber is used for the outer peripheral surface of the rotating wheel, the elastic material intervenes between the rotating wheel and the mat seedling box to serve as a cushion, so that the vertical position of the rotating wheel can be finely adjusted. Adjustment can be performed more smoothly.
[0018]
The dispensing device includes a rotating brush for wiping the medicine deposited on the dispensing roll, and disposing the rotating brush so as to be able to adjust an interval between the rotating brush and the surface of the dispensing roll, and finely adjusting a wiping amount of the medicine by the rotating brush. It is possible.
[0019]
With the above configuration, the rotating brush is provided opposite to the medicine applying roll, so that the medicine excessively deposited on the medicine applying roll having a large number of concave portions on the surface can be wiped by the rotating brush, and the rotating brush can be used. Since the distance between the medicine applying roll and the medicine applying roll can be finely adjusted, the wiping amount of the surplus medicine can be finely adjusted.
[0020]
Further, by providing a shielding plate for closing between the partition plate and the rotating brush, a space for medicine circulation is formed below the shielding plate, and the medicine wound up by the rotating brush is placed in the space. If the configuration is such that the guide is guided downward by the shield plate, the scattered medicine is received by the shield plate, guided downward along the partition plate, and sent again to the drug application roll side, thereby enabling continuous drug application. In addition, the scattered medicine is also collected in such a circulation, and the medicine that is not applied and wasted can be reduced as much as possible.
[0021]
In addition, it is preferable that a fixed brush for wiping the surface of the medicine roll is provided in the space formed by the shielding plate so that the medicine on the surface of the medicine roll is removed to some extent before the wiping of the rotating brush. When the fixed brush is provided in this manner, the amount of the medicine adhering to the rotating brush when the rotating brush is wiped can be significantly reduced, the medicine can be continuously and more reliably applied, and the amount of the medicine remaining in the concave portion of the medicine applying roll becomes an appropriate amount. Also, the dispensing accuracy for seeds can be improved. When the medicine is guided by the shielding plate when the fixed brush is provided, the medicine can be returned to the medicine applying roll side without being blocked by the fixed brush if the medicine is circulated behind the fixed brush.
The dispensing device as described above can be installed and used as an option in various sowing devices that require a dispensing function, in addition to being provided in a seeding device including a watering device, a seeding device, and a soiling device.
[0022]
On the upper part of the drug dispensing roll, a rotating brush that rotates by obtaining power from the rotational force of the drug dispensing roll is installed,
In accordance with the movement of the mat seedling box, the rotation brush rotates to wipe the excess medicine on the surface of the medicine roll as the medicine roll rotates.
[0023]
With the above configuration, the power of the rotating brush for wiping the medicine accumulated on the surface of the drug applying roll is transmitted as rotary power from the drug applying roll that rotates following the movement of the mat seedling box. It is also possible to eliminate the need for a dedicated motor provided for the rotation of.
Therefore, the cost of parts can be further reduced, and the power for the dedicated motor is not required, so that the running cost can be reduced.
[0024]
A pulley is provided on one end side of the drug applying roll and the rotating brush, and power is transmitted to the rotating brush by bridging a belt between the pulleys.
A tension spring for preventing slack is brought into contact with the belt to apply tension to the belt, thereby preventing the belt from idling.
[0025]
With the above configuration, even if the belt wound around the pulleys of the medicine roll and the rotating brush is slackened (for example, in order to adjust the wiping amount of the medicine, the surface of the rotating brush and the surface of the medicine roll are not When the interval between them is reduced), the belt is pressed by the tension spring and the tension of the belt is maintained, so that power can be stably transmitted between the pulleys without the belt running idle.
[0026]
In addition, on the downstream side of the moving path of the mat seedling box of the medicine applying device, a sowing device, a soiling device, and the like are provided, and a drive roller for conveying the matting seedling box along the moving path is arranged for each of the devices. And the rotation speed of the rotation shaft of each drive roller is substantially the same,
Attachment type driving roller with a larger diameter than the driving roller is attached to the rotation shaft of the driving roller of the drug dispensing device located on the upstream side, increasing the conveying speed of the mat seedling box in the drug dispensing device, continuously from the upstream side. The space between the front and rear of the inserted mat seedling box is narrowed.
[0027]
With the above configuration, the attached drive roller has a larger diameter than the other drive rollers, and the outer peripheral length thereof is larger, so that the mat seedling box is conveyed per rotation of the rotating shaft in the dispensing device. The distance can be increased, that is, the conveying speed of the mat seedling box can be increased.
Therefore, when a plurality of mat seedling boxes are continuously loaded from the upstream side, the interval between the mat seedling boxes going forward (the mat seedling boxes transporting the watering device, the seeding device, the soil-filling device, etc.) is increased. Even in the event of a fall, the mat seedling box conveyed by the drug dispensing device can be caught up by being quickly transported, narrowing the gap with the mat seedling box going ahead and eliminating the gap, and sowing and soiling equipment. This prevents the seeds and soil sown from falling into gaps between the front and rear mat seedling boxes and being wasted.
[0028]
In addition, since the attached drive roller is configured to be attached later as a separate body, if the drive roller has a rotating shaft, it can be used without depending on the device model, so that versatility can be provided. it can.
[0029]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a medicine applying device for a mat seedling box according to a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a mat seedling box sowing machine 10 and a mat seedling box dispensing device 13. As shown in FIG. 2, the mat seedling box dispensing device 13 is installed upstream of the mat seedling box sowing device 10. Used as
That is, from the upstream end 11a to the downstream end 11b in the feeding direction, the dispensing device 13 is mounted on the frame 11 extending in the feeding direction of the mat seedling box N (indicated by a white arrow in the figure). , A watering device 14, a seeding device 15, and a soiling device 16 are arranged in this order. The mat seedling box N is sent by bringing its lower surface Nb into contact with a roller 29 driven by a motor.
[0030]
In the use procedure, first, the mat seedling box N is conveyed from the upstream end side 11a, and the soil is put into the mat seedling box N by operating only the soil placement device 16. After that, the mat seedling box N containing only the floor soil is brought to the end portion 11a on the upstream side, and the medicine applying device 13, the watering device 14, the seeding device 15, and the soiling device (cover soil) 16 are operated. In this state, the mat seedling box N is transported again, so that the mat seedling box N can be stacked in the order of floor soil, chemicals, water, seeds, and cover soil.
[0031]
FIG. 3 shows a drug dispensing device 13 in which a drug dispensing roll 21 and a rotating brush 22 are vertically arranged below a drug dispensing hopper 20 for charging a drug. The dispensing hopper 20 has an inclined bottom surface 20a at the bottom, and a shutter plate 20b that can be opened and closed vertically as a partitioning plate is provided so as to be orthogonal to the inclined bottom surface 20a, and the opening width of the medicine supply port 20c of the dispensing hopper 20 is adjusted. Like that.
[0032]
As shown in FIGS. 3 and 4, the drug dispensing roll 21 disposed below the shutter plate 20b has a large number of concave portions 21b in which the medicine Y enters the roll surface 21a at circumferentially required intervals. A rotating wheel 28 having a diameter larger than that of the drug dispensing roll 21 is provided coaxially at both ends of 21.
The rotating wheel 28 has a plurality of protrusions 28a protruding on the outer periphery thereof at regular intervals, and the protrusions 28a of the rotating wheel 28 are pressed against the upper surface of the frame Na of the mat seedling box N to be sent, whereby the rotating wheel 28 is pressed. 28 rotates with the power from the mat seedling box N. Further, in a state where the rotating wheel 28 is in contact with the mat seedling box N, the medicine applying roll 21 is rotatably arranged at a position close to the mat seedling box N.
[0033]
A drive roller 29 is brought into contact with the lower surface Nb of the mat seedling box N at a position directly below the medicine roll 21 and other positions with a required interval, and a shaft portion 30 of the drive roller 29 is connected to a motor so that power is supplied. Have gained.
A rotating brush 22 having a brush portion 22a around the rotating brush 22 is provided above the medicine applying roll 21 in contact with a roll surface 21a of the medicine applying roll 21, and both ends of a rotating shaft 22b of the rotating brush 22 are elongated holes. It is supported rotatably and vertically adjustable by 22c, and the position can be adjusted by operating the adjustment dial 26.
[0034]
A shielding plate 24 is provided between the rotating brush 22 and the shutter plate 20b to close the gap between the rotating brush 22 and the shutter plate 20b, and a part of the shielding plate 24, the shutter plate 20b, the rotating brush 22 and the drug application. A part of the roll 21 forms a space K for medicine circulation below the shielding plate 24. The shielding plate 24 has a shape in which a bent portion 24 d is provided on one end side, and the bending point 24 a is brought into contact with the lower surface of the brush cover 23 provided above the rotating brush 22, and the bent end 24 b is located near the shutter plate 20 b. , While the other end 24c is positioned near the tip of the brush portion 22a at the height of the rotation center 22b of the rotating brush 22.
[0035]
In the space K, a fixed brush 25 is provided in a substantially horizontal direction, and a brush tip 25a is brought into contact with a roll surface 21a of the drug application roll 21. The directions of rotation of the dispensing roll 21 and the rotating brush 22 are the same.
[0036]
As shown in FIG. 5, the medicine dispensing roll 21, the rotating brush 22, the medicine dispensing hopper 20, and the like are integrally connected as a medicine dispensing device 13, and are rotatably connected to a wall 32 at a support part 31. The dispensing device 13 can be swung about the support portion 31 as a rotation axis.
[0037]
Next, a process of transmitting power to the medicine dispensing roll 21 will be described.
As the drive roller 29 rotates with the power from the motor, the mat seedling box N placed on the drive roller 29 on the upstream side 11a is rolled into the drug dispensing device 13 as shown in FIG. The rotating wheel 28 and the driving roller 29 are pressed against each other.
When the mat seedling box N is to be rolled between the rotating wheel 28 and the driving roller 29, the operator simply pushes the mat seedling box N lightly, and the mat seedling box N is moved between the rotating wheel 28 and the driving roller 29. The distal end portion Nc of N is pressed and then automatically caught.
[0038]
When the mat seedling box N moves in the direction of the white arrow, the rotating wheel 28 pressed against the mat seedling box N rotates accordingly. As a result, the medication roll 21 coaxially connected to the rotating wheel 28 rotates.
That is, since the rotating wheel 28 of the medication roll 21 directly obtains power from the movement of the mat seedling box N, the rotating speed of the rotating wheel 28 automatically follows even when the feeding speed of the mat seedling box N changes. Therefore, the amount of the medicine Y supplied to the mat seedling box N can be kept constant.
Further, it is not necessary to provide a dedicated motor or the like for rotating the dispensing roll 21, so that the number of parts can be reduced and the structure can be simplified.
[0039]
Since the dispensing roll 21 is connected to the dispensing device 13 side, when the dispensing roll 21 is placed on the upper surface of the frame Na of the mat seedling box N, the entire weight of the dispensing device 13 is loaded on the mat seedling box Na. Therefore, between the rotating wheel 28 and the mat seedling box N and between the mat seedling box N and the driving roller 29 are sufficiently pressed, and one of the driving rollers 29 holds the mat seedling box N Since the dispensing roll 21 is disposed at a position directly below the rotating wheel 28 via the intermediary, the driving force for rotating the rotating wheel 28 can be more stably obtained.
[0040]
In addition, since the dispensing device 13 is rotatable in a swinging manner, there is a slight difference in the height of the mat seedling box N passing between the rotating wheels 28 at both ends of the dispensing roll 21 and the driving roller 29. However, the vertical position of the drug dispensing roll 21 is automatically finely adjusted so as to follow the difference in height.
Since the rotating brush 22 is also adjustable in the vertical direction with respect to the surface of the dispensing roll 21, it is also possible to finely adjust the wiping amount of excess medicine deposited on the surface of the dispensing roll 21 by the rotating brush 22.
[0041]
The drive roller 29 does not need to be provided directly below the drug application roll 21. However, when the drive roller 29 is directly below the drive roller 21, the drive force is easily transmitted.
Further, the transmission structure that obtains power from the mat seedling box is not limited to the drug application device, and may be used for the seeding means, soil placement means, fertilization means, and the like.
[0042]
Hereinafter, a process until the medicine Y in the medicine applying hopper 20 is put into the mat seedling box N will be described.
The medicine Y introduced into the medicine hopper 20 flows downward along the inclined bottom surface 20a, and flows down to the medicine administration roll 21 through the supply port 20c (indicated by a thick black arrow in the figure). The drug Y that has flowed down enters the concave portion 21b of the roll surface 21a, and at the same time, is deposited in a large amount on the roll surface 21a. The medicine Y in the concave portion 21b and on the roll surface 21a is carried upward by the rotation of the medicine applying roll 21.
[0043]
A certain amount of the medicine Y that is carried upward and accumulates on the roll surface 21a is wiped downward by the fixed brush 25, and the remaining medicine Y is carried to the position of the rotating brush 22 by further rotation. I have. The rotating brush 22 wipes the roll surface 21a at a high speed by the power of a motor to leave an appropriate amount of the medicine Y in the recess 21b and blows off the surplus medicine Y. Thereafter, the medicine Y is dropped by the further rotation of the medicine applying roll 21 and the concave portion 21b is directed downward, and an appropriate amount of the medicine Y is uniformly fed into the mat seedling box N.
[0044]
The medicine Y blown off by the rotating brush 22 scatters in the space K along the shielding plate 24 extending obliquely upward on the shutter plate 20b side, and the bent portion 24d of the shielding plate 24 and the upper part of the shutter plate 20b. Turned down at After that, it goes around the rear side of the fixed brush 25 along the shutter plate 20b, descends along the inclined bottom surface 20a, and is again sent to the medicine applying roll 21 side (indicated by a broken arrow in the figure).
[0045]
FIGS. 6A and 6B show modified examples of the rotating wheels at both ends of the drug application roll.
In FIG. 6A, the shape of a plurality of projections 28a 'projecting from the outer peripheral surface of the rotating wheel 28' at a predetermined interval is a mountain-shaped cross section.
In FIG. 6B, a rubber portion 28a "having a large frictional resistance is externally fitted on the outer peripheral surface of the rotating wheel 28".
In both of the above modifications, the idle rotation between the protrusions 28a 'or the rubber portions 28a "of the rotating wheels 28', 28" and the upper surface Na of the mat seedling box N is prevented, and the feeding power of the mat seedling box N is rotated. The rotational movement of the wheels 28 ', 28 "can be reliably transmitted.
[0046]
7 to 10 show a second embodiment.
In the medicine dispensing device 13 'of this embodiment, the rotation power of the rotating brush 22' is obtained from the rotation of the medicine dispensing roll 21 '.
[0047]
A large-diameter pulley 40 is provided at one end of a rotating shaft 21c 'of the drug applying roll 21', and a small-diameter pulley 41 is provided at one end of a rotating shaft 22b 'of the rotating brush 22', and the belt B is attached to each of the pulleys 40 and 41. I'm hanging over. Note that the diameter ratio between the large-diameter pulley 40 and the small-diameter pulley 41 is 5: 1.
Between the pulleys 40 and 41 and the medicine roll 21 ′ and the rotating brush 22 ′, a first wall 42 connected to the medicine roll 21 ′ and the rotating brush 22 ′, and a second wall installed on the frame 11. 43 are provided.
[0048]
On the outer surface of the first wall portion 42, there is provided a swinging plate 44 which can swing with a support shaft portion 44a as a fulcrum. The rotating shaft 22b 'of the rotating brush 22' is rotated on the front end side of the swinging plate 44. It is mounted freely, and the lower end 46a of the adjustment shaft 46 is connected to the upper front end.
By turning the adjustment dial 26 'to move the adjustment shaft 46 up and down, the swing plate 44 swings around the support shaft portion 44a as a fulcrum, and the rotary brush 22' moves up and down with the vertical movement of the rotation shaft 22b '. I do.
[0049]
A coil portion 45a of a tension spring 45 is externally fitted to the support shaft portion 44a of the swing plate 44, and one end of the coil portion 45a is fixed to the swing plate 44 to be a fixed end 45c, and the other end is free. The end 44b is pressed against the outer surface of the belt B.
By doing so, the vertical position of the rotating brush 22 'is adjusted by the adjustment dial 26', and the free end 44b of the tension spring 45 presses the belt B even when the small-diameter pulley 41 is lowered and the belt B is slackened. The belt B can be tensioned, and the belt B is prevented from running idle.
[0050]
As shown in FIGS. 8 and 9, a long hole 43 a is formed on the front side of the second wall portion 43, and the support bar 47 inserted into the long hole 43 a is connected to the rotating brush 22 ′ and the medicine roll 21 ′. It supports the connected first wall 42.
That is, by vertically moving and positioning the support bar 47 in the elongated hole 43a, the vertical position of the drug applying roll 21 'can be adjusted according to the height of the mat seedling box N.
[0051]
As shown in FIG. 10, the rotating wheels 48 at both ends of the drug applying roll 21 ′ are provided with a plurality of projections 48 a having a mountain-shaped cross section on the outer peripheral surface, and the rotating wheels 28 ′ shown in FIG. The pitch is narrower than the interval between the projections 28a ', so that the mat seedling box N is securely bitten.
[0052]
Next, the operation of the dispensing device 13 'will be described.
When the mat seedling box N is installed on the driving roller 29 that rotates with the power from the motor, the mat seedling box N is caught in the drug dispensing device 13 and pressed against the rotating wheel 48 and the driving roller 29. Is done.
Then, the rotating wheel 48 rotates following the movement of the mat seedling box N, and the large-diameter pulley 40 rotates via the rotating shaft 21c '. The rotational force of the large-diameter pulley 40 is transmitted to the small-diameter pulley 41 via the belt B, and the rotary brush 22 'rotates via the rotary shaft 22b'.
[0053]
With the above configuration, the power of the rotating brush 22 ′ for wiping off the excess medicine accumulated on the surface of the medicine applying roll 21 ′ is transmitted from the medicine applying roll 21 ′ that rotates following the movement of the mat seedling box N. In addition, a dedicated motor provided for rotating the rotating brush 22 'can be eliminated, so that the cost of parts can be greatly reduced, and the running cost such as electric power can be reduced.
In addition, since the rotation of the rotating brush 22 'is obtained from the rotating force of the drug applying roll, the rotating speed of the rotating brush 22' is reduced, so that the wiping agent is less likely to be scattered, and the brush cover 23 shown in the first embodiment is not used. Can also be eliminated.
[0054]
In addition, the drug dispensing device 13 ′ of the present embodiment is provided with a detachable handle 50 that can manually rotate the large-diameter pulley 40 as an option.
As shown in FIG. 7, the handle 50 has a mounting portion 50b at one end and a grip portion 50a at the other end.
When the mounting portion 50b is fixed to the rotating shaft 21c 'at the center of the large-diameter pulley 40, and the operator rotates the handle 50 by holding the grip portion 50a, it is not necessary to operate the motor to drive the driving wheel 29. The large-diameter pulley 40 rotates, and the above-described dispensing operation can be performed manually.
[0055]
When the handle 50 is used, the mat seedling box N is passed through the inside of the dispensing device 13 'before the full operation of the dispensing device 13', and the vertical position of the rotating brush 22 'is adjusted by the adjustment dial 26'. When tuning the dispensing amount, the dispensing operation can be performed without the need to operate the drive wheel 29, and the operation for confirming the dispensing amount can be easily performed.
[0056]
11 to 13 show a third embodiment.
FIG. 11 shows an attachable drive roller 60, in which a substantially cylindrical attachable drive roller 60 is formed by matching two divided bodies 61 having substantially a semi-cylindrical shape and the same shape.
[0057]
The divided body 61 has a semi-cylindrical rubber roller 63 at a central portion on the outer surface side of a metal or resin plate 62. The plate portion 62 has a concave portion 62 a having a semicircular cross section in the central axis direction on the facing surface side, and has a bolt insertion hole 62 b formed at a required position of the plate portion 62 on both sides of the rubber roller portion 63.
[0058]
The concave portions 62a of the two divided bodies 61 having the above-described configuration are externally fitted to the rotation shaft 30 of the drive roller 29 located in the medicine dispensing device 13 ', and the opposing surfaces of the two plate portions 62 are adhered to each other. In the matched state, the bolt 64 is inserted and the nut 65 is fixed by caulking.
[0059]
As shown in FIG. 12, when the outer diameter of the other drive roller 29 is L1 and the outer diameter of the attached drive roller 60 is L2, the relation of L1 <L2 is satisfied. It has become.
That is, although the speeds of the rotating shafts 30 of the drive rollers 29 arranged in each of the devices 13, 14, 15, 16 are substantially the same, (the outer circumference of the drive roller 29) <(the outer circumference of the attached drive roller 60). Since the attachment type driving roller 60 is brought into contact with the lower surface of the mat seedling box N and conveyed, the matted seedling box N in the upstream medicine applying device 13 is conveyed per rotation of the rotating shaft 30. The distance can be lengthened, that is, the conveying speed of the mat seedling box N can be increased.
[0060]
Therefore, as shown in FIG. 13, when a plurality of mat seedling boxes N-1 and N-2 are continuously input from the upstream side, the mat seedling box N-2 (which is forwarded to the irrigation device 14) moves forward. Even if there is an interval S between the mat seedling box N-2) and the mat seedling box N-1 transported by the drug dispensing device 13 ', the mat seedling box N-1 is quickly transported and catches up with the mat seedling box N-2. The gap can be eliminated by narrowing the interval S, and the seeds and soil sown by the seeding device 15 and the soiling device 16 may fall into the gap between the front and rear mat seedling boxes N-1 and N-2 and be wasted. Is prevented.
Further, since the attachment type driving roller 60 is configured to be separately attached later, if the rotation shaft 30 of the driving roller 29 is provided, it can be applied irrespective of the device model, so that versatility can be provided. Can be.
[0061]
【The invention's effect】
As is clear from the above description, according to the present invention, since the rotation of the drug applying roll is directly powered by the moving mat seedling box, a dedicated motor for rotating the drug applying roll can be eliminated. In addition to reducing the number of parts and simplifying the structure of the mat seedling box dispensing machine, the rotation speed of the dispensing roll automatically follows the change in the moving speed of the mat seedling box to keep the dispensing amount constant. be able to.
[0062]
By arranging the driving roller directly below the medicine applying roll via the mat seedling box, the driving force can be transmitted more stably, and the outer surface of the rotating wheel is made of a material having a large frictional resistance. By projecting the plurality of projections, slippage between the rotating wheel and the mat seedling box can be prevented.
In addition, since the lower end of the dispensing device is pivotally supported on the frame with cantilever support, even if there is a slight difference in the height of the mat seedling box, fine adjustment according to the difference in height Is done.
Furthermore, by adjusting the distance between the dispensing roll and the rotating brush, it is possible to finely adjust the wiping amount of the medicine deposited on the dispensing roll by the rotating brush.
[0063]
In addition, by obtaining the power of the rotating brush from the drug applying roll that rotates following the movement of the mat seedling box, a dedicated motor for the rotating brush can be eliminated, and the running cost such as parts cost and electric power can be reduced. Can be reduced.
Further, as a power transmission means between the drug applying roll and the rotating brush, when a belt is stretched between pulleys provided respectively, the tension of the belt is maintained by pressing the belt with the tension spring. In addition, the belt can be prevented from idling.
[0064]
In addition, by attaching the attached drive roller having a larger diameter than the other drive rollers, it is possible to increase the conveying speed of the mat seedling box in the medicine applying device, and when a plurality of mat seedling boxes are continuously input. Even if there is a gap between the mat seedling box going ahead, it can catch up, narrow the gap with the matting seedling box going ahead and eliminate the gap, sowing by the seeding device and soiling device located downstream. It is possible to prevent the seeds and soil from falling into gaps between the mat seedling boxes before and after and wasting.
[Brief description of the drawings]
FIG. 1 is an overall perspective view before a mat seedling box medicine applying device according to a first embodiment of the present invention is installed in a mat seedling box sowing machine.
FIG. 2 is an overall perspective view after the mat seedling box dispensing device is installed in a mat seedling box sowing machine.
FIG. 3 is a schematic view of the dispensing device as viewed from the right side.
FIG. 4 is a schematic view of the dispensing device as viewed from the front.
FIG. 5 is a schematic view for explaining rotation of the drug dispensing device.
FIGS. 6A and 6B are schematic diagrams showing modified examples of a rotating wheel.
FIG. 7 is a schematic view of a drug dispensing apparatus according to a second embodiment as viewed from the front.
FIG. 8 is a schematic view of the dispensing device as viewed from the left side.
FIG. 9 is a perspective view of a main part of the dispensing device.
FIG. 10 is a schematic view of a rotating wheel.
FIG. 11 is a perspective view showing a state before an attached drive roller according to a third embodiment is attached.
FIG. 12 is a schematic view seen from the front of the dispensing device after the attachment type driving roller is attached.
FIG. 13 is a schematic view of the dispensing device after the attachment type driving roller is attached, as viewed from the right side.
FIG. 14 is a schematic view of a conventional seeder.
[Explanation of symbols]
10 Seeding machine for mat seedling box
11 frames
13 Drug dispensing equipment
14 Irrigation equipment
15 Seeding equipment
16 Soiler
20 Drug application hopper
20b Shutter plate
21 Drug roll
22 rotating brush
24 Shield plate
24d bend
25 fixed brush
26 Adjustment dial
28 rotating wheel
28a protrusion
29 Drive roller
31 Support
40 large diameter pulley
41 small diameter pulley
42 1st wall
43 Second wall
43a long hole
44 Rocking plate
45 tension spring
47 Support Bar
50 handle
60 Attached drive roller
61 split
62 Plate part
63 Rubber roller
64 volts
65 nuts
B belt
K space
N mat seedling box
Y drug

Claims (8)

A medicine roll is connected to the lower part of the medicine hopper, and is installed at the upper part of the moving path of the mat seedling box. A medicine applying device for a mat seedling box, wherein the medicine applying roll is rotated at a rotation speed corresponding to a moving speed of the mat seedling box to apply medicine to the mat seedling box. The medicine applying device for a mat seedling box according to claim 1, wherein the rotating wheel is attached to both sides of the medicine applying roll and pressed against the upper surfaces of both side frames of the mat seedling box. The mat seedling box is conveyed along the moving path by the rotation of a driving roller driven by a power source, and the driving roller is installed at a position directly below a rotating wheel of the medicine applying roll via the frame of the mat seedling box. The drug application device for a mat seedling box according to claim 1 or 2, wherein The rotating wheel of the drug applying roll is made of a material having a large frictional resistance on the outer peripheral surface thereof, and / or the outer peripheral surface of the rotating wheel is formed by projecting a plurality of projections and pressed against the upper surface of the frame of the moving mat seedling box. The dispensing device for a mat seedling box according to any one of claims 1 to 3, wherein the ring is configured to be surely rotated. The lower end of the dispensing device having the dispensing roll and the dispensing hopper is pivotally supported in a cantilever manner on a frame constituting a moving path of the mat seedling box so as to be swingable,
The mat seedling box according to any one of claims 1 to 4, wherein a position of a rotating wheel of the drug applying roll moves up and down in accordance with an outer frame height of the mat seedling box and is pressed against an upper surface of the frame. Drug application equipment. On the upper part of the drug dispensing roll, a rotating brush that rotates by obtaining power from the rotational force of the drug dispensing roll is installed,
6. The apparatus according to claim 1, wherein the rotating brush rotates to wipe off excess drug on the surface of the drug applying roll as the drug applying roll rotates following the movement of the mat seedling box. 7. The drug application device for a mat seedling box according to claim 1. A pulley is provided on one end side of the drug applying roll and the rotating brush, and power is transmitted to the rotating brush by bridging a belt between the pulleys.
The drug application device for a mat seedling box according to claim 6, wherein a tension spring for preventing slack is brought into contact with the belt to apply tension to the belt to prevent the belt from running idle. On the downstream side of the moving path of the mat seedling box of the medicine applying device, a sowing device, a soiling device, and the like are provided, and a drive roller for transporting the mat seedling box along the moving path is provided for each of the devices. At the same time, the rotation speed of the rotation shaft of each drive roller is substantially the same,
Attachment type driving roller with a larger diameter than the driving roller is attached to the rotation shaft of the driving roller of the drug dispensing device located on the upstream side, increasing the conveying speed of the mat seedling box in the drug dispensing device, continuously from the upstream side. The drug application device for a mat seedling box according to any one of claims 1 to 7, wherein a front-back distance between the put mat seedling boxes is narrowed.

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