JP4926862B2 - Transplanter - Google Patents

Description

  The present invention relates to a transplanter such as a riding rice transplanter, and more particularly to a transplanter that applies a drug to a seedling before transplantation.

  2. Description of the Related Art In recent years, various devices have been added to transplanters such as passenger rice transplanters in order to improve the efficiency of transplantation work. For example, a transplanter shown in Patent Document 1 is provided with a spare seedling supply device (such as a roller conveyor) that transports a spare seedling (mat seedling + seedling box) from the front of the body to the rear of the body. According to such a transplanting machine, it is possible to continuously supply preliminary seedlings from the shore to the aircraft via the preliminary seedling supply device, so that it becomes unnecessary to supply preliminary seedlings from the shore to the aircraft by hand, Work efficiency can be improved.

  Further, the transplanter shown in Patent Document 2 is provided with a drug application device for applying a drug (insecticide fungicide, etc.) to a seedling before transplantation. According to such a transplanter, the seedling transplanting operation and the medicine application work can be performed at the same time. Therefore, the medicine application work (medicine spraying work) separately performed after the seedling transplanting work becomes unnecessary, and the work efficiency is improved. be able to.

JP 2006-109773 A JP 2005-185229 A

  However, in the transplanting machine shown in Patent Document 2, a medicine application device is provided above the seedling stage of the planting work machine, and the medicine is sprayed on the seedlings that are vertically fed on the seedling stage. There is a problem that the operator cannot visually check the state of the medicine applied to the seedlings as well as the complexity of the structure and the increase in weight in the work machine.

The present invention was created in order to solve these problems in view of the above circumstances, and the invention of claim 1 includes a planting work machine for planting seedlings at the rear of the aircraft, and a front of the aircraft. from the transplanter and a preliminary seedling supply device for conveying the preliminary seedling to aft body, provided with a Seyaku device for Seyaku the drug preliminary seedlings conveyance path of the preliminary seedling supply device, the preliminary seedling supply device Seyaku At least two spare seedling placement lengths are secured at the rear of the position , and the medicine application device can be transformed into a standing medicine working posture and a lying storage posture. It is a transplant machine. In this way, the prescription seedling supply device is provided in the preparatory seedling supply device, so that not only can the construction complexity and weight increase in the planting work machine be avoided, as in the case where the prescription seeding machine is provided in the planting work machine, The operator can visually check the state of drug application to the seedling. Moreover, since the reserve seedling placement length of two or more spare seedlings is secured behind the preparatory seedling feeder supply position, even if the preparatory seedling feeder is placed on the transport path of the preliminary seedling feeder, It is possible to reduce the possibility that the drug application device becomes an obstacle to the removal, and it is possible to selectively take out the rearmost spare seedling and the second spare seedling from the back. Moreover, even if the prescription seedling device is arranged on the transport path of the preliminary seedling supply device, the height of the preliminary seedling supply device during storage can be made as low as possible.
The invention according to claim 2 is characterized in that the preliminary seedling supply device has a three-piece structure in which a movable part that can be stored before and after the fixed part is connected, and a medicine application device is arranged on the upper front side of the fixed part. The transplanter according to claim 1. If it does in this way, even if it arrange | positions a medication apparatus on the conveyance path | route of a reserve seedling supply apparatus, the front-back length of the reserve seedling supply apparatus at the time of accommodation can be shortened as much as possible.

  Next, embodiments of the present invention will be described with reference to the drawings. In FIG. 1 and FIG. 2, reference numeral 1 denotes a traveling machine body of a riding type rice transplanter (transplanter), and a planting work machine 3 is connected to a rear portion of the traveling machine body 1 via an elevating link mechanism 2. . The planting work machine 3 is provided with a seedling mounting table 4 that is inclined in a low shape before and after the front height, and a plurality of mat seedlings M are placed in parallel in the left-right direction. The mat seedling M placed on the seedling stage 4 is transferred to the lower end of the seedling stage 4 by the inclination of the seedling stage 4 and the feeding action of the vertical feed mechanism 5. A planting mechanism 6 having planting claws is provided in the vicinity of the lower end of the seedling table 4, and the mat seedling M is separated by this planting mechanism 6 and planted in the field.

  As shown in FIGS. 1 to 3, on both the left and right sides of the traveling machine body 1, there are spare seedling supply devices 7 for transporting the seedlings Y (mat seedlings M housed in the seedling box B) from the front of the machine body to the rear part of the machine body. Is provided. The preliminary seedling supply device 7 of the present embodiment includes a left and right frame 8, a front and rear frame 9 that integrally connects the left and right frames 8, and a plurality of rolling rollers 10 that are arranged in parallel at a predetermined interval between the left and right frames 8. And is arranged along the side of the machine body in a posture that gently tilts in a front-to-back and low-down state in a side view. Thereby, when supplying the preliminary seedlings Y from the shore to the aircraft, it is possible to continuously supply a plurality of preliminary seedlings Y to the rear of the aircraft by simply placing the preliminary seedlings Y sequentially on the front end of the preliminary seedling supply device 7. It becomes possible.

  In addition, the preliminary seedling supply device 7 of the present embodiment is freely displaceable upward at an intermediate conveyor (fixed portion) 11 that is fixedly attached to a stay 7 a that is erected on the side of the machine body, and a front end portion of the intermediate conveyor 11. A front conveyor (movable part) 12 connected to (vertical rotation of fulcrum A) and a rear conveyor (movable part) connected to the rear end of intermediate conveyor 11 so as to be freely displaceable (vertical rotation of B fulcrum). ) 13, and the front conveyor 12 and the rear conveyor 13 can be displaced upward and folded on the intermediate conveyor 11 when spare seedlings are not supplied. In the present embodiment, the front conveyor 12 and the rear conveyor 13 are foldable, but may be detachable.

  As shown in FIGS. 1 to 4, the preliminary seedling supply device 7 is provided with a drug application device 14 for applying a medicine to the preliminary seedling Y through the transport path. The drug application device 14 is composed of, for example, a particle spraying device for spraying particles, and is configured to spray a granular medicine such as an insecticidal fungicide on the spare seedling Y conveyed by the spare seedling supply device 7. . In this way, since the prescription seedling supply device 7 can be provided with the prescription seedling supply device 7 to apply the drug to the seedlings before transplanting, the planting work is performed as in the case where the prescription seedling device is provided in the planting work machine 3. Not only can the structure of the machine 3 be complicated and the weight can be avoided, but also the operator can visually check the state of medication applied to the seedling.

  If demonstrating it concretely, the prescription apparatus 14 of this embodiment is provided with the flame | frame 15, the chemical | medical agent storage part 16, the chemical | medical agent spraying part 17, the chemical | medical agent discharge part 18, and the control box 19. The frame 15 is erected on each of the left and right frames 8 of the preliminary seedling supply device 7, and a drug storage unit 16, a drug spraying unit 17, a drug discharge unit 18, and a control box 19 are supported between the upper ends of the frame 15. The medicine storage unit 16 includes a hopper 20 that stores medicine and a lid body 21 that covers the upper opening of the hopper 20 so as to be openable and closable. The medicine stored in the hopper 20 is supplied to the medicine spraying unit 17. Is done.

  The medicine spraying unit 17 includes a spraying roller 22 disposed to face a lower opening of the hopper 20, a spraying roller shaft 23 integrally including the spraying roller 22, and a spraying motor 24 that rotates the spraying roller shaft 23. It is configured with. The spraying roller 22 has a large number of grooves (not shown) corresponding to the size of the medicine on the outer peripheral surface. The medicine in the hopper 20 is put into the groove and the medicine put into the groove is sprayed by the spraying motor. According to the drive of 24, it is comprised so that rotation conveyance may be carried out to the medicine discharge part 18.

  The medicine discharge section 18 includes a discharge guide 25 that guides discharge of the medicine supplied from the medicine spraying section 17, a weed body 26 that weeds the preliminary seedling Y, and a scattering prevention plate 27 that prevents the medicine from scattering. It is configured. The discharge guide 25 is composed of a guide plate having a wider left and right width toward the lower side, and guides the drug toward the stock of the spare seedling. The weeding body 26 is made of a wire laid between the left and right frames 15, and weeds the leaves of the preliminary seedling Y back and forth. As a result, the stock part of the preliminary seedling Y is exposed, and the medicine falling from the discharge guide 25 is surely sprayed on the stock part of the preliminary seedling Y. The scattering prevention plates 27 are erected on both the left and right sides of the medicine application position, and prevent the medicine falling from the discharge guide 25 from scattering to the left and right outwards of the preliminary seedling supply device 7.

  The control box 19 is provided on one side of the hopper 20. A main switch 28 and a spray amount adjustment dial 29 which will be described later are provided on the front surface of the control box 19, and a control unit 30 which will be described later is provided inside the control box 19.

  The attachment position of the prescription seedling device 14 with respect to the preliminary seedling supply device 7 is determined in consideration of the ease of taking out the preliminary seedling Y. Specifically, in providing the prescription seedling supply device 7 with the prescription seedling supply device 7, at the rear of the preparatory seedling supply device 7, the preparatory seedling placement length for two or more preliminary seedlings is secured. The attachment position of the medication apparatus 14 is set. In this way, even if the prescription seedling device 14 is arranged on the transport path of the preliminary seedling supply device 7, the possibility that the prescription seedling device 14 becomes an obstacle when taking out the preliminary seedling Y can be reduced, and the rearmost preparatory seedling Y and the second preliminary seedling Y from the back can be selectively taken out according to the preference of the operator.

  Further, the mounting position of the prescription seedling supply device 7 with respect to the preliminary seedling supply device 7 is determined in consideration of the storage capacity of the preliminary seedling supply device 7. Specifically, referring to FIG. 5, the preliminary seedling supply device 7 of the present embodiment includes the front conveyor 12 and the rear conveyor 13 that can be stored before and after the intermediate conveyor 11 that is a fixed portion, as described above. Although the three-piece structure is connected, the prescription device 14 is disposed on the upper front side of the intermediate conveyor 11. If it does in this way, even if it arrange | positions the medication apparatus 14 on the conveyance path | route of the reserve seedling supply apparatus 7, the front-back length of the reserve seedling supply apparatus 7 at the time of accommodation can be shortened as much as possible. In addition, the prescription device 14 of this embodiment includes a hook 31 that engages and holds the rolling roller 10 of the folded front conveyor 12 and a stopper 32 that supports the folded rear conveyor 13 in contact. Therefore, the storage posture of the front conveyor 12 and the rear conveyor 13 can be stably maintained.

  Further, as shown in FIG. 6, the drug application device 14 of the present embodiment is freely transformable into a standing drug application posture and a stowed storage posture. More specifically, the frame 15 of the medication device 14 has a middle portion that can be bent back and forth (rotating back and forth around the C fulcrum) and loosening the fixture 15b penetrating the arc-shaped elongated hole 15a. The undulation of the device 14 is allowed, and the drug application device 14 can be fixed at an arbitrary inclination angle by tightening the fixture 15b. In this way, even if the prescription device 14 is arranged on the transport path of the preparatory seedling supply device 7, the height of the preparatory seedling supply device 7 at the time of storage is made as much as possible based on the deformed appearance of the prescription device 14. Can be lowered. Moreover, since the medicine in the hopper 20 can be easily taken out when the medicine application device 14 is laid down, it is easy to extract the remaining medicine after the work is finished. Moreover, since the position of the medicine discharge unit 18 changes back and forth when the inclination of the medicine application device 14 is changed, the medicine administration position can be adjusted.

  Furthermore, the preliminary seedling supply device 7 is provided with a constant speed transport device (constant speed transport means) 33 for forcibly transporting the preliminary seedling Y at the medicine application position at a constant speed. The constant velocity transport device 33 is composed of, for example, a belt conveyor, and includes a pair of front and rear transport roller shafts 35 integrally including a plurality of transport rollers 34, a transport belt 36 wound between the front and rear transport rollers 34, A conveyor drive motor 37 that rotates the rear conveyance roller shaft 35 is provided. In this way, since the conveyance speed of the preliminary seedling Y at the drug application position is kept constant, variations in the drug dosage due to changes in the conveyance speed can be reliably suppressed, and the drug dosage can be equalized.

  Furthermore, the preliminary seedling supply device 7 is provided with a plurality of seedling detection switches SW1 to SW4 (seedling position detection means) for detecting the position of the preliminary seedling Y. The first seedling detection switch SW1 detects the presence of the preliminary seedling Y at the conveyance start end position of the constant velocity conveyance device 33, and the second seedling detection switch SW2 detects the presence of the preliminary seedling Y at the administration position of the drug application device 14. The third seedling detection switch SW3 detects the second spare seedling Y from the back behind the drug application position, and the fourth seedling detection switch SW4 detects the rearmost spare seedling Y behind the drug application position. It has become. The seedling detection switches SW1 to SW4 of the present embodiment are contact type detection switches that detect the position of the preliminary seedling based on the contact with the bottom surface of the preliminary seedling Y, but detect the position of the preliminary seedling Y in a non-contact manner. An optical or magnetic detection switch may be used.

  As shown in FIG. 7, the above-described spraying motor 24, main switch 28, spraying amount adjustment dial 29, conveyor drive motor 37, and seedling detection switches SW <b> 1 to SW <b> 4 are connected to the control unit 30 of the prescription device 14. And the control part 30 performs drive control of the spraying motor 24 and the conveyor drive motor 37 according to the program previously memorize | stored in ROM. In this drive control, the medicine which performs ON / OFF control (the constant speed drive of the predetermined speed at the time of ON) based on the position detection of the preliminary seedling Y by the seedling detection switches SW1 to SW4 is performed. ON / OFF control of constant velocity transport device 33 (conveyor drive motor 37) based on device drive control and detection of position of preliminary seedling Y by seedling detection switches SW1 to SW4 (constant speed drive at a predetermined speed when ON) Constant speed conveyance device drive control, and spray amount adjustment control for changing the drive speed of the medicine application device 14 (spray motor 24) in accordance with the set value of the spray amount adjustment dial 29 are included. If it does in this way, while being able to perform reliable medicine with respect to the preliminary seedling Y conveyed with the preliminary seedling supply apparatus 7, the variation in dosage will be suppressed and the dosage will be equalized.

  The drive control of the medicine application device 14 and the constant velocity transport device 33 based on the detection of the position of the preliminary seedling Y can be performed based on the drive control pattern as shown in FIG. This drive control pattern is set to drive / stop the medicine application device 14 and the constant velocity transport device 33 for each ON / OFF combination pattern of the seedling detection switches SW1 to SW4. For example, in a state where the spare seedling Y is not placed on the spare seedling supply device 7, all the seedling detection switches SW1 to SW4 are OFF, and the drug application device 14 and the constant velocity transport device 33 are stopped. Here, when the first spare seedling Y is transported from the front side, first, only the constant speed transport device 33 is driven in response to the ON of the first seedling detection switch SW1. Next, when the reserve seedling Y reaches the medicine application position, the medicine application device 14 is also driven in response to the ON of the second seedling detection switch SW2, and the medicine for the preliminary seedling Y is started. Thereafter, the prescription seedling device 14 and the constant velocity transport device 33 are continuously driven until the preliminary seedling Y passes the prescription position, and when the preliminary seedling Y passes the prescription position, the prescription seedling device 14 and the constant speed transport device 33 are stopped.

  In addition, when at least one of the two rear seedling detection switches SW3 and SW4 is OFF (when the preliminary seedling Y flows), the medicine application device 14 and the constant velocity transport device 33 are allowed to be driven. When the two seedling detection switches SW3 and SW4 are both ON (when the flow of the preliminary seedling Y stops), the driving of the medicine application device 14 and the constant velocity transport device 33 is stopped. Thereby, when the flow of the preliminary seedling Y stops in the preliminary seedling supply device 7, the subsequent preliminary seedling Y can be waited in front of the drug application position, and wasteful driving of the drug application device 14 and the constant velocity transport device 33 is possible. Can be prevented.

  According to the present embodiment configured as described, a riding type rice planting provided with a planting work machine 3 for planting seedlings at the rear part of the machine body and a spare seedling supply device 7 for transporting the seedlings Y from the front of the machine body to the rear part of the machine body. In the machine, since the prescription seedling device 14 for applying the medicine to the preparatory seedling Y is provided in the transport path of the preparatory seedling supply device 7, the structure in the planting work machine 3 is the same as in the case where the prescription seeding device is provided in the planting work machine 3. In addition to avoiding complications and weight increases, the operator can visually check the state of medication applied to the seedlings. Moreover, since the reserve seedling placement length of two or more spare seedlings is secured behind the prescription feeding position of the preliminary seedling supply device 7, even if the prescription seeding device 14 is arranged on the transport path of the preliminary seedling supply device 7, It is possible to reduce the possibility that the medication device 14 becomes an obstacle when the preliminary seedling Y is taken out, and it is possible to selectively take out the rearmost preliminary seedling Y and the second preliminary seedling Y from the back.

  In addition, the preliminary seedling supply device 7 has a three-piece structure in which a front conveyor 12 and a rear conveyor 13 that can be stored before and after the intermediate conveyor 11 that is a fixed portion are connected, and a medicine application device 14 on the upper front side of the intermediate conveyor 11. Therefore, even if the prescription seedling device 14 is placed on the transport path of the preliminary seedling supply device 7, the length of the front and rear of the preliminary seedling supply device 7 during storage can be shortened as much as possible.

  In addition, since the medicine application device 14 can be transformed into a standing medicine operation posture and a lying storage posture, even if the medicine device 14 is arranged on the transport path of the spare seedling supply device 7, the prescription at the time of storage is stored. The height of the seedling supply device 7 can be made as low as possible.

It is a side view of a riding type rice transplanter. It is a top view of a riding type rice transplanter. It is a top view of a reserve seedling supply device. It is a front view of a medication apparatus. It is a side view of the reserve seedling supply apparatus which shows a 1st accommodation attitude | position. It is a side view of the reserve seedling supply apparatus which shows a 2nd accommodation attitude | position. It is a block diagram which shows the input / output of a control part. It is explanatory drawing which shows the drive control pattern of a prescription apparatus and a constant velocity conveyance apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 3 Planting work machine 7 Spare seedling supply apparatus 11 Intermediate conveyor 12 Front conveyor 13 Rear conveyor 14 Medicinal apparatus 30 Control part 33 Constant speed conveyance apparatus SW1-SW4 Seedling detection switch Y Preparatory seedling

Claims (2)

Planting machine to plant seedlings at the rear of the aircraft,
In a transplanter equipped with a preliminary seedling supply device for transporting preliminary seedlings from the front of the aircraft to the rear of the aircraft,
While providing a drug application device for applying medicine to the spare seedling in the transport path of the preliminary seedling supply device,
The preliminary seedling supply device is one in which a preliminary seedling placement length of two or more preliminary seedlings is secured at the back of the drug application position ,
The transplanting device is characterized in that it can be transformed into a standing medicine working posture and a lying storage posture .   2. The transplanter according to claim 1, wherein the preliminary seedling supply device has a three-piece structure in which a movable part that can be stored in front and rear of a fixed part is connected, and a drug application device is disposed on the upper front side of the fixed part. .

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