JP2011115085A - Mechanism for supplying material for seedling - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mechanism for supplying a material for a seedling, which is capable of accurately supplying a material to the root of a seedling regardless of the height of the seedling. <P>SOLUTION: The transplanting unit (the material-feeding mechanism for the seedling) 30 includes a seedling-carrying platform 31 for moving the carried seedlings S downward, and a chemical-feeder (a material feeder) 70 for feeding the required chemical (the material) P to the root of the moving seedling S in order. A grass-dividing plate (grass-dividing unit) 60 is constituted of a flat plate in the transplanting unit 30 equipped with the grass-dividing plate 60 for bending the seedling S and opening the vicinity of the root of the seedling S by being applied to the upper part of the moving seedling S when feeding the chemical P. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is a seedling substance supply mechanism comprising a seedling mounting base for moving a placed seedling downward, and a substance supply device for sequentially supplying a substance necessary for the root of the moving seedling to supply the substance The present invention relates to a seedling substance supply mechanism including a weeding part for bending a seedling by applying it to an upper part of a moving seedling and releasing the vicinity of the root of the seedling.

  Examples of the conventional seedling substance supply mechanism include a rice transplanter (self-propelled vehicle and planting unit) and a chemical spreader attached to the rear surface of the planting unit. Rice seedlings are placed on a seedling platform of a rice transplanter together with a seedling mat, and are sent downward by a conveyor belt. At this time, the seedlings are placed so as to stand up with respect to the seedling mounting surface. Then, immediately before the planting claw scrapes off the seedling at the bottom of the seedling stage, chemicals (necessary substances) are sequentially supplied to the root of the seedling. The medicine is supplied from the hopper tank of the substance supply device through the spray port.

  When the medicine is supplied, the upper part of the seedling is bent by a single weed stick (weed part). This weed stick is provided at a position slightly upstream from the spraying port for supplying the medicine, vertically above the seedling mounting surface.

  In the rice transplanter configured as described above, the seedlings are sequentially transported downward on the seedling platform by the transport belt, and the movement of the upper part of the seedlings is blocked by the weed stick provided in front of the spray port. Since the lower part of the seedling is continuously conveyed downward, the seedling is bent toward the upstream side in the conveying direction. As a result, an open space is created between the root of the standing seedling adjacent to the downstream side and the root of the bent seedling, and the drug is fed into the root of the seedling from here.

JP 2002-027895 A

  However, in a rice transplanter with such a structure, the weed stick cannot cope with the difference in height of the seedling, and depending on the type of seedling, the seedling cannot be bent sufficiently, and an open space is formed at the root. There may be cases where it cannot be secured sufficiently. For this reason, there existed a problem that a chemical | medical agent could not fully be supplied toward a root from a spraying port. Accordingly, the present invention is to provide a seedling substance supply mechanism that can reliably supply a substance to the root of the seedling regardless of the height of the seedling.

For this reason, the invention described in claim 1 is a seedling substance supply comprising: a seedling mounting base for moving the placed seedlings downward; and a substance supply device for sequentially supplying necessary substances to the roots of the moving seedlings Mechanism,
When supplying the substance, in the substance supply mechanism for seedlings provided with a weeding part for bending the seedling against the upper part of the moving seedling and opening the vicinity of the root of the seedling,
The weed portion is formed of a flat plate.

  According to a second aspect of the present invention, in the seedling substance supply mechanism according to the first aspect, the weed portion is provided to be inclined toward the opposite side to the moving direction of the seedling.

The invention described in claim 3 is a seedling material supply mechanism comprising a seedling mounting base for moving the placed seedlings downward, and a substance supply device for sequentially supplying necessary substances to the roots of the moving seedlings. There,
When supplying the substance, in the substance supply mechanism for seedlings provided with a weeding part for bending the seedling against the upper part of the moving seedling and opening the vicinity of the root of the seedling,
The weed portion is composed of two or more rod-shaped members.

  According to a fourth aspect of the present invention, in the seedling substance supply mechanism according to the third aspect, the weed portion is provided to be inclined toward a side opposite to the moving direction of the seedling.

  According to invention of Claim 1, the seedling substance supply mechanism provided with the seedling mounting stand which moves the mounted seedling below, and the substance supply apparatus which supplies sequentially a required substance to the root of the moving seedling In the seedling substance supply mechanism comprising a weeding part for releasing the vicinity of the root of the seedling by bending the seedling against the upper part of the moving seedling when supplying the substance, the weeding part is Since it is composed of a flat plate, unlike the rod-shaped weed portion that has been used so far, even when the height of the seedling is different, it can reliably contact the upper portion of the seedling. As a result, the seedling can be reliably bent toward the upstream side in the conveying direction, and an open space can be sufficiently secured at the base. Therefore, it is possible to provide a seedling substance supply mechanism that can reliably supply a substance to the root of the seedling regardless of the height of the seedling.

  According to the invention described in claim 2, since the weeding portion is provided to be inclined toward the opposite side to the moving direction of the seedling, the seedling can be more reliably bent toward the upstream side in the transport direction, Sufficient open space can be secured at the root.

  According to invention of Claim 3, the seedling substance supply mechanism provided with the seedling mounting stand which moves the mounted seedling below, and the substance supply apparatus which supplies sequentially a required substance to the root of the moving seedling In the seedling substance supply mechanism comprising a weeding part for releasing the vicinity of the root of the seedling by bending the seedling against the upper part of the moving seedling when supplying the substance, the weeding part is Because it is composed of two or more rod-shaped members, it is surely placed on the upper part of the seedling even when the seedling height is different, unlike the weeding part that consists of a single stick that has been used so far. Can abut. As a result, the seedling can be reliably bent toward the upstream side in the conveying direction, and an open space can be sufficiently secured at the base. Therefore, it is possible to provide a seedling substance supply mechanism that can reliably supply a substance to the root of the seedling regardless of the height of the seedling.

  According to the invention described in claim 4, since the weed portion is provided to be inclined toward the opposite side to the moving direction of the seedling, the seedling can be more reliably bent toward the upstream side in the transport direction, Sufficient open space can be secured at the root.

It is a side view of the rice transplanter as an example of this invention. FIG. It is a front view of the planting part. It is the side view. It is a side view of the planting part of another example of this invention.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. 1 and 2 are a side view and a plan view of a main part of the riding rice transplanter. The outline of the riding rice transplanter is as follows. A vehicle body frame 11 of a traveling vehicle body 10 on which an operator rides is provided with an engine 12 at a front portion and a transmission case 13 at a rear portion. Front wheels 15 for paddy field traveling are provided on both front sides of the transmission case 13 via a front axle case 14. The rear wheel 17 for paddy field traveling is supported on both sides of the rear portion of the transmission case 13 via the rear axle case 16. The engine 12 and its neighboring members are covered with a bonnet 18, and the mission case 13 and its neighboring members are covered with a vehicle body cover 20 having a step 19. A driver's seat 21 is attached to the upper portion of the vehicle body cover 20, and a steering handle 22 is provided in front of the driver's seat 21.

  At the rear of the traveling vehicle body 10, a planting unit 30 including a seedling mount 31 for planting eight rows and a plurality of planting claws 32 is connected. The planting part 30 is connected to the traveling vehicle body 10 using a three-point lifting link mechanism including a top link 33 and a lower link 34. And, it is configured to be movable up and down by an expansion and contraction operation of a hydraulic cylinder interposed between the rear portion of the traveling vehicle body 10 and the lower link 34. Further, the plate-shaped forward tilting seedling table 31 installed at the front height and the rear height is reciprocated with respect to the center and left and right planting transmission cases 37 via the lower guide rail 35 and the upper guide rail 36. It is supported freely. Below the planting transmission case 37, center and left and right planting flat floats 38 and 39 are supported via planting depth adjusting members. The planting part 30 is lowered and the floats 38 and 39 are landed to set the planting depth of the seedlings to be taken out from the seedling mat on the seedling mount 31 (FIG. 1, FIG. 1). In Fig. 2, the seedlings are omitted). In the planting transmission case 37, the rotating shaft rotates with the driving force extracted from the PTO shaft of the traveling vehicle body 10.

  In FIG. 3, the front view of the planting part 30 is shown. The planting unit 30 includes eight seedling mounting bases 31 (one seedling mounting base 31 corresponds to one line at the time of planting) arranged adjacent to each other. Two conveyor belts B for conveying the seedlings downward are provided in parallel on the bottom bottom surface of each seedling mount 31. The conveyor belt B is made of a rubber endless belt, and has numerous small protrusions on the surface and protrusions formed at regular intervals on the back surface. The conveyor belt B is engaged with a pair of plastic gears on the back side of the seedling table 31 and rotates. The drive shaft branched from the PTO shaft is engaged with the rotation shaft of the one gear through the gear.

  Four hopper units 73 described in detail later are provided in front of the center of the seedling table 31. One hopper unit 73 is configured to supply a medicine (substance) to the seedling mounts 31 for two strips. Further, four planting transmission cases 37 are provided in front of the lower part of the seedling mount 31, and planting claws 32 are provided at both ends of each planting transmission case 37. That is, two seedlings can be planted with one planting transmission case 37. The seedling stage 31 includes a weed board 60. This weed plate 60 is provided over the entire width direction of the seedling mount 31.

  As shown in detail in FIGS. 4A and 4B, the weed board 60 is formed of a rectangular metal plate (flat plate) having a certain thickness (the weed board 60 is a metal plate). It is not limited, and it may be a plastic plate). Both end portions of the weed plate 60 are fixed to the upper end portion of a bracket 61 fixed to the outer edge portion 31E of the seedling mount 31 with pins 62 or the like. In addition, it is desirable that the weed board 60 is provided with an angle α with respect to the longitudinal direction D of the seedling S placed on the seedling mount 31 (in other words, the angle α is opposite to the moving direction of the seedling S). Tilt it with a tilt). This angle α is set to an angle at which the weed board 60 opens the root of the seedling S and the medicine P is easily supplied to the root of the seedling S, preferably 30 to 60 degrees. In addition, the width W of the weed board 60 is preferably set as appropriate depending on the height difference of the various seedlings S placed on the seedling mount 31. For example, in consideration of the difference between the chief seedling and the normal growing seedling, the weed board 60 of W = 50 mm is used. By doing in this way, even in the state where seedlings having different growth conditions are mixed, the weed board 60 reliably contacts the upper part of the seedling S, the root of the seedling S is released, and the medicine is supplied to the root of the seedling S. can do.

  A chemical supply device (substance supply device) 70 is attached to the rear portion of the planting unit 30 (in this example, a box application agent [insecticide / disinfectant]. The planting unit 30 and the chemical supply device 70 constitute a substance supply mechanism. Constitute). Specifically, the bracket 71 is raised from a boundary portion between the transmission portion T that transmits power to the planting transmission case 37 and the planting transmission case 37, and a receiving base 72 is fixed to the upper end of the bracket 71. Four hopper units 73 are placed on the cradle 72, and are detachably fastened with a patchon lock (not shown). The hopper unit 73 includes a hopper tank 74, a medicine feeding roller portion 75, a discharge pipe 76, a spray port 77, and the like. The center of the bottom surface of the hopper tank 74 is V-shaped when viewed from the front. At the bottoms of both ends of the hopper tank 74, a medicine feeding roller part 75 is provided. The outer shell of the medicine feeding roller unit 75 is formed integrally with the hopper tank 74. And a transverse groove roller is rotatably provided inside. The transverse groove roller is for supplying a certain amount of medicine downward while rotating. A rotation drive shaft (not shown) branched from the PTO shaft is attached to the horizontal groove roller. By integrally molding the hopper tank 74 and the medicine feeding roller portion 75, water leakage at the connecting portion, which has been a problem in the past (rain water enters from the connecting portion, moistens the granular medicine, (Problem of being stuck to the feeding roller portion 75) can be avoided.

  A delivery pipe 76 is attached to the lower end of each medicine supply roller portion 75 continuously. In this way, two lead-out pipes 76 are attached to one hopper tank 74, and each lead-out pipe 74 is responsible for supplying the medicine to the seedling mounting table 31 for one strip. Therefore, the medicine is supplied to the seedling mounting tables 31 for two strips by one hopper tank 74.

  A spout 77 is continuously provided at the lower end of the outlet pipe 76. The spray port 77 has a double structure. That is, a cylindrical wheel is provided on the outside, and a nozzle is provided on the inside. A plurality of protrusions are provided on the outer periphery of the wheel. This protrusion comes into contact with the seedling S as is apparent in the figure. Then, when the seedling stage 31 moves in the width direction to feed out the seedling S at the time of rice planting, the protrusion is caught by the seedling S, and the wheel outside the spraying port 77 rotates. Therefore, the wheel rotates at a constant speed while the seedling stage 31 is feeding the seedling S. One end of a scraper made of a wire is fixed to the wheel. The other end of the scraper is inserted into the nozzle. And a scraper rotates in a nozzle because a wheel rotates. By comprising in this way, it can prevent that a water | moisture content adheres to a nozzle exit, and the chemical | medical agent discharged | emitted from the spraying port 77 is solidified by the water | moisture content to the spraying port 77 periphery.

  Next, the operation | movement which spreads a chemical | medical agent to a seedling with the rice transplanter comprised in this way is demonstrated. The seedling S placed on the seedling placing table 31 is conveyed downward by the conveying belt B, and when the seedling S comes into contact with the weeding board 60, the upper part bends backward in the conveying direction to form a space at the root portion. The drug P is supplied from the hopper unit 73 to the root of the seedling S through this space. And the bent seedling S will return to the original standing state, when the front-end | tip part leaves | separates from the lower end of the weed board 60. In this way, the seedlings S on the seedling mount 31 are successively conveyed downward, bent sequentially from the one in contact with the weed board 60, and form a space at the base. And the chemical | medical agent P is supplied to the root.

  FIGS. 5A and 5B show another example of the present invention. In this example, two weed rods 80A and 80B are provided in parallel with a fixed interval L instead of a single weed plate as in the above example (limited to two weed rods). 3 or more may be used). The distance L between the two weed rods 80A and 80B is about L = 50 mm. By replacing the weed board 60 with the weed sticks 80A and 80B, it is possible to provide a planting portion that is reduced in weight by the same effect.

  In this example, both ends of the weed rods 80A and 80B are fixed to a bracket 81 fixed to the outer edge portion 31E of the seedling mount 31 by welding or the like. In addition, about the operation | movement which spreads the chemical | medical agent P to the seedling S, since it is the same as that of the above-mentioned example, description is abbreviate | omitted.

  The seedling substance supply mechanism of the present invention is not limited to a chemical spreader attached to the rear surface of a rice transplanter for planting rice seedlings. For example, you may apply to the seedling conveyance stand which has the conveyor installed horizontally in the building. Specifically, the present invention can also be applied to a case where a plant seedling is placed on a seedling transport stand and the drug is supplied to the root of the seedling while the seedling is transported and moved. Moreover, the substance supplied to the root of a seedling is not limited to a chemical | medical agent, A fertilizer, an insecticide, etc. may be sufficient.

31 seedling stage 31E outer edge portion 32 planting claw 33 top link 34 lower link 35 lower guide rail 36 upper guide rail 37 planting transmission case 38, 39 float 60 weed plate 61 bracket 62 pin 70 drug supply device (substance supply device) )
71 Bracket 72 Receiving base 73 Hopper unit 74 Hopper tank 75 Drug feed roller section 76 Deriving pipe 77 Sprinkling port 80A, 80B Weed stick 81 Bracket B Conveying belt P Drug (substance)
S seedling

Claims (4)

A seedling substance supply mechanism comprising a seedling stage for moving the placed seedling downward, and a substance supply device for sequentially supplying substances necessary for the root of the moving seedling,
When supplying the substance, in the substance supply mechanism for seedlings provided with a weeding part for bending the seedling against the upper part of the moving seedling and opening the vicinity of the root of the seedling,
A seedling substance supply mechanism, wherein the weed portion is formed of a flat plate.   The seedling substance supply mechanism according to claim 1, wherein the weed portion is provided to be inclined toward a side opposite to the moving direction of the seedling. A seedling substance supply mechanism comprising a seedling stage for moving the placed seedling downward, and a substance supply device for sequentially supplying substances necessary for the root of the moving seedling,
When supplying the substance, in the substance supply mechanism for seedlings provided with a weeding part for bending the seedling against the upper part of the moving seedling and opening the vicinity of the root of the seedling,
The seedling substance supply mechanism, wherein the weed portion is composed of two or more rod-shaped members.   The seedling substance supply mechanism according to claim 3, wherein the weed portion is provided to be inclined toward a side opposite to the moving direction of the seedling.

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