JP2012249622A - Seeding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seeding machine constituted to achieve watering a seedling box with a simple structure.SOLUTION: The seeding machine includes a watering part B for watering in such a manner that the seedling box 1 is immersed in water after bed soil is supplied to the seedling box 1 conveyed along a conveyance route X at a bed soil supplying part. The watering part B includes an immersion tank 5 for storing water, and an immersion means Q for sending the seedling box 1 so that the bottom wall 1b of the seedling box 1 comes at a lower level than the water surface L of the immersion tank 5.

Description

  The present invention relates to a seeding machine including a floor soil supply unit that supplies floor soil to the seedling box, a seeding unit that performs sowing, and a soil covering unit that supplies covering soil along a conveyance path of the seedling box.

  As a seeder configured as described above, Patent Document 1 discloses that a soil is supplied to a seedling box conveyed by a conveyor by a floor soil supply unit, seeded by a seeding unit, irrigated by an irrigation unit, and covered with soil. The structure which supplies covering soil in a part is described.

  In Patent Document 1, an irrigation unit (in the literature, an irrigation device) includes a nozzle disposed on a conveyance path and a pump that supplies water to the nozzle by pressurizing and supplying water to the nozzle. Irrigation is performed in the form of spraying.

Japanese Patent Laid-Open No. 10-276582

  As described in Patent Document 1, the provision of a pump for performing irrigation not only increases the complexity of the configuration but also increases the cost of the seeder. In addition, when it is configured to perform irrigation without a pump, it may be possible to configure the seeder so that water is supplied from the water supply equipment to the irrigation unit, but it is used in environments where water supply equipment is not provided. There is room for improvement.

  The objective of this invention exists in the point which comprises rationally the seeding machine which implement | achieves irrigation with respect to a seedling box with a simple structure.

A feature of the present invention is a seeder having a floor soil supply unit that supplies floor soil to the seedling box, a seeding unit that performs sowing, and a soil covering unit that supplies covering soil, along a transport path of the seedling box. Because
The transport path for transporting the seedling box after the floor soil has been supplied by the floor soil supply unit includes an irrigation unit that supplies water in a form of being immersed in the seedling box, and this irrigation part stores water. It is in a point provided with a submergence tank and a submergence means for sending the bottom wall of the seedling box to a level lower than the surface of the water stored in the submergence tank to infiltrate the seedling box.

According to this configuration, when irrigating, the bottom wall of the seedling box to which the floor soil is supplied is sent to a level lower than the surface of the submerged tank by the inundation means, and the water in the submerged tank is supplied to the inside of the seedling box. it can. In this configuration, it is not only necessary to provide a nozzle etc. in the upper part of the conveyance path, but also a pump for applying pressure to the water supplied to the nozzle is not required, and water for supplying water from the water supply facility to the nozzle is not required. Neither piping nor pressure adjustment valves are required.
In this way, a seeding machine that realizes irrigation of the seedling box with a simple configuration and at a low cost has been configured.

  The present invention may include the irrigation unit on the upstream side of the conveyance path with respect to the seeding unit.

  According to this, water will be irrigated to the floor soil before sowing in the sowing part, so that good seedling can be realized by sowing the floor soil containing moisture.

  The present invention may include a drug spraying unit that sprays a drug on the transport path through which the seedling box after the floor soil is supplied by the floor soil supply unit is transported.

  According to this, it becomes possible to spray chemical | medical agents, such as an insecticide and a disinfectant, on a bed soil, and implement | achieve favorable growth of a seedling.

It is the whole sowing machine side view. It is a vertical side view of an irrigation part. It is a top view of an irrigation part. It is sectional drawing which shows the submerged tank and conveyor of an irrigation part. It is sectional drawing which shows the chemical | medical agent delivery mechanism of a chemical | medical agent spraying part. It is a side view of a rice transplanter provided with a medicine spraying unit. It is a side view which shows the structure of a chemical | medical agent spraying unit. It is a side view which shows a different structure of a chemical | medical agent spraying unit. It is a whole side view of the seeder of another embodiment (a).

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
〔overall structure〕
As shown in FIG. 1, a floor soil supply that includes a conveyor 2 that transports the seedling box 1 along the transport path X and supplies the floor soil Sa to the seedling box 1 that is transported along the transport path X by the conveyor 2. Part A, irrigation part B for supplying water to seedling box 1 supplied with this floor soil Sa, and seeding part C for seeding seed pod T (an example of seeds) on floor soil Sa after this irrigation, A seeding machine is configured by including a covering soil portion D for supplying the covering soil Sb to the upper surface of the floor soil Sa on which the seeding has been performed, and a medicine spraying portion E for spraying the medicine U on the surface of the covering soil Sb.

  This seeder continuously conveys a plurality of seedling boxes 1 on a conveyor 2, thereby continuously supplying floor soil, irrigation, sowing, covering soil, and spraying medicines to the seedling box 1. The seedling box 1 configured as described above and sowed is budding and raising seedlings by being managed in an environment of appropriate temperature and humidity in a seedling facility (not shown). After this seedling raising, a mat-like seedling W (see FIG. 6) used for transplanting to a field by a rice transplanter is obtained.

  The seedling box 1 is formed in a rectangular shape in plan view, and has a bottom wall 1b and a side wall 1c connected to the bottom wall 1b, as shown in FIGS. 4 and 5, and the bottom wall 1b has a plurality of draining water. This is a resin molded product in which a hole (not shown) is formed. From such a configuration, in the irrigation part B, as shown in FIG. 2, a part of the seedling box 1 is submerged below the water surface L of the water stored in the submerged tank 5, so that the bottom wall of the seedling box 1 Irrigation is performed in such a manner that the inside of the nursery box 1 is submerged from the hole 1b (not shown).

  In this embodiment, a form used for sowing seed rice seeds T for paddy rice is shown. However, the seeding machine of the present invention is not limited to seeding seed rice seeds T for paddy rice, and seeds such as vegetables and flowering plants. You may comprise as a seeder which performs sowing. As an example, when seeding with a sowing machine for vegetables and flowers, a seedling pot for growing a pot seedling is inserted into the seedling box 1 and floor soil Sa is supplied. In C, sowing is performed at the pitch of the pot so as to perform sowing for each seedling pot.

[Specific configuration]
As shown in FIGS. 1 to 4, the conveyor 2 supports a plurality of support shafts 2 </ b> A in a lateral orientation with respect to the left and right frames 2 </ b> F so as to be rotatable at set intervals, and a pair of pulleys that rotate integrally with the support shaft 2 </ b> A. 2R is provided, and a conveyor belt 2C is wound around each pulley 2R so as to be parallel to each other, and an electric conveyance motor 2M that drives the conveyor belt 2C is provided. From such a configuration, the conveyor belt 2C is operated by driving the conveyance motor 2M to realize conveyance of the seedling box 1.

  The conveyor 2 is not limited to the one provided with the conveyor belt 2C, and may include a plurality of rollers that are driven and rotated while the seedling box 1 is placed. Moreover, you may provide the conveyor 2 and the electric motor which drives this conveyor 2 independently in the floor soil supply part A, the irrigation part B, the sowing part C, the soil covering part D, and the chemical | medical agent spraying part E, respectively.

  The floor soil supply unit A includes a floor soil feeding mechanism 11 that supplies the floor soil Sa stored in the upper floor soil hopper 10 to the full width of the seedling box 1 by driving an actuator (not shown) such as an electric motor. In addition, a rotary pressure reducing roller 12 for leveling the floor soil surface supplied to the seedling box 1 and a drive rotary floor soil brush 13 are provided.

  The floor soil feeding mechanism 11 includes a belt-shaped member that receives the floor soil Sa stored in the floor soil hopper 10 and sends it horizontally, and the floor soil Sa is fed by driving the belt-shaped member at a set speed. Realize.

  As shown in FIGS. 1 to 4, the irrigation unit B includes a submerged tank 5 that stores water, and sends the bottom wall 1 b of the seedling box 1 to a level lower than the water level L of the water stored in the submerged tank 5. The seedling box 1 is submerged with water, and thereafter is provided with a submergence means Q for sending it to the original level.

  The submergence means Q feeds the seedling box 1 after the floor soil Sa is supplied to a position where the bottom wall 1b reaches a level lower than the water surface L of the submersion tank 5, and then sends it to the original level. The conveyance path X is curved so as to protrude downward. And the conveyance path | route X for implement | achieving inundation is called the inundation process area | region Xq, By conveying the seedling box 1 to this inundation process area | region Xq, the water stored in the inundation tank 5 of the incubator 1 Irrigation in the form of entering the inside of the seedling box 1 from the through hole of the bottom wall 1b and absorbing the water into the floor soil Sa is realized. By soaking the water in this way, the inconvenience of leaving traces of running water on the surface of the floor soil Sa and the unevenness of the floor soil Sa are suppressed.

  The irrigation part B includes a water supply mechanism (not shown) that automatically supplies water in order to suppress a decrease in the level of the water surface L of the submerged tank 5. Alternatively, water may be replenished.

  The sowing unit C includes a seed feeding mechanism 16 that supplies the seed pod T stored in the upper seed hopper 15 to the entire width inside the seedling box 1 by driving an actuator (not shown) such as an electric motor.

  The seed feeding mechanism 16 is configured as a roll-like member that is rotatably supported around an axial core that is orthogonal to the conveyance path X, and a plurality of the outer circumferences of the roll-like member that are parallel to the axial core. A recess (not shown) is formed. From this configuration, when the roll-shaped member is driven to rotate, the seed pod T stored in the seed hopper 15 enters the recess due to its own weight, and the roll-shaped member rotates about the shaft core, so that the seed potato T can fall off. When it reaches the correct posture, it falls out of the recess and sowing is performed.

  The soil covering part D has the same configuration as the floor soil supplying part A, and the soil covering Sb stored in the upper soil covering hopper 18 is transferred to the seedling box 1 by driving an actuator (not shown) such as an electric motor. A covering soil feeding mechanism 19 for supplying the entire width is provided, and a driving rotary type covering brush 20 for leveling the covering surface supplied to the seedling box 1 and removing excess covering soil Sb is provided.

  The soil covering feeding mechanism 19 includes a belt-shaped member that receives the soil covering Sb stored in the soil covering hopper 18 and sends it in the horizontal direction. By driving the belt-shaped member at a set speed, the soil covering Sb is fed out.

  The medicine spraying unit E has a medicine feeding mechanism 23 that supplies the powdery medicine U stored in the upper medicine hopper 22 to the entire width of the seedling box 1 by the moving force of the seedling box 1 and supplies it to the seedling box 1. A medicine brush 24 is provided for removing excess of the medicine U. As the drug U, an insecticide or a fungicide is used, and after the seed bud T emerges by spraying the drug, the pest is controlled and the disease of the seedling is suppressed.

  As shown in FIG. 5, the medicine spraying part E is in contact with the upper surface of the outer edge portion of the seedling box 1, and the driven roller 25 that rotates with the movement of the seedling box 1 and the rotational force of the driven roller 25 are used as the medicine. An interlocking gear 26 for transmitting to the feeding mechanism 23 is provided. When the seedling box 1 is transported by the transport force of the conveyor 2 from this configuration, the driven roller 25 rotates with the movement, and this rotational force is transmitted from the interlocking gear 26 to the medicine feeding mechanism 23, and the medicine feeding mechanism 23. Rotates and sprays the medicine.

[Sowing form]
In the case of sowing with this seeder, the seedling box 1 is continuously supplied to the upstream side of the conveyor 2 and conveyed by the conveyor 2, so that the floor soil Sa is placed in the seedling box 1 in the floor soil supply unit A. Is supplied, pressure is applied to the upper surface of the floor soil by the pressure reducing roller 12, and excess soil is removed by the floor soil brush 13. As a result, the seedling box 1 is supplied with the required amount of floor soil Sa.

  Next, in the irrigation part B, the water immersion means Q sends the bottom wall 1b of the seedling box 1 to a level lower than the water level L of the water stored in the water immersion tank 5 in the water immersion treatment area Xq as the conveyor 2 is conveyed. The irrigation is performed in such a manner that the water in the submerged tank 5 soaks into the floor soil from the hole in the bottom wall 1b of the seedling box 1.

  Next, seed pod T is supplied to the floor soil surface of seedling box 1 in sowing section C (seeding is performed), and subsequently, covering soil Sb is supplied to seedling box 1 in covering section D, and covering brush 20 is used. Excess soil is removed, and finally the drug U is sprayed onto the soil covering surface in the drug spraying part E. In this medicine spraying part E, since the medicine feeding mechanism 23 is rotated in conjunction with the conveyance of the seedling box 1, the medicine spraying is performed every time the seedling box 1 passes through the lower part without an actuator such as an electric motor. Is done.

[Usage on rice transplanter]
FIG. 6 shows a situation when the mat-like seedlings W produced by sowing with the above-described seeder are supplied to a riding type rice transplanter. The rice transplanter includes a seedling planting device 33 that can be raised and lowered at the rear end position of the traveling machine body G having a pair of left and right front wheels 31 and a pair of left and right rear wheels 32, and a driver seat 34 at the center position of the traveling machine body G. It has. Further, at the front part position of the traveling machine body G, the left and right side parts of the bonnet 35 are provided with preliminary seedling mounting parts H for mounting mat-like seedlings.

  The seedling planting device 33 includes a seedling stage 33A for placing the mat-like seedlings W, and a planting mechanism 33B for cutting out seedlings from the lower ends of the mat-like seedlings W placed on the seedling stage 33A and planting them on the field scene. And.

  The preliminary seedling mounting section H includes three preliminary seedling mounting bases 38 for the vertical support pillars 37, and each of the preliminary seedling mounting bases 38 smoothly transfers the mat-like seedlings W in the front-rear direction. A plurality of free-rolling rollers 38R are provided for performing. As shown in the figure by the phantom line, the preliminary seedling placement section H includes an overlapping posture in which the three preliminary seedling placement stands 38 are arranged in a shelf shape, and three spare seedling placement stands 38 as shown in FIG. The traveling body G is configured to be switchable between a deployment posture aligned in a straight line in the front-rear direction of the traveling machine body G.

  In the unfolded position, the upper preliminary seedling stage 38 is adjacent to the rear position of the middle central preliminary seedling stage 38, and the lower preliminary seedling stage 38 is positioned at the front position of the middle preliminary seedling stage 38. It is comprised so that it may adjoin. The mat-like seedlings W are supplied to the preliminary seedling stage 38 while being accommodated in the seedling box 1, and are taken out from the seedling box 1 when being placed on the seedling stage 33 </ b> A of the seedling planting device 33.

  Due to such a configuration, when the mat-like seedling W is supplied, the preliminary seedling stage 38 is set in the unfolded posture, the front end of the traveling machine body G is brought close to the vicinity of the cocoon, and the preliminary seedling at the front end position from the heel. The mat-like seedling W in the state accommodated in the nursery box 1 is supplied to the mounting table 38. The mat-like seedlings W supplied in this way are fed backward in a form in which the upper surfaces of the plurality of preliminary seedling mounting bases 38 are slid, and can be supplied to the seedling mounting base 33A of the seedling planting device 33 by taking out from the seedling raising box 1. .

  FIG. 7 shows a medicine spraying unit F attached to the support column 37 in a state where a plurality of spare seedling stage 38 is developed. This medicine spreading unit F is a mat-like seedling sent to the preliminary seedling stage 38. It is comprised so that the chemical | medical agent can be spread to W.

  That is, the medicine spraying unit F includes a medicine hopper 41 for storing medicine, a medicine roll 42 for feeding out medicine, a driving wheel body 44 that rotates integrally with the idler roller 38R of the preliminary seedling stage 38, and a medicine roll 42. And a driven mechanism 46 formed of an endless belt is wound around a driven wheel body 45 that rotates integrally with the motor. The drive mechanism 46 is not limited to a belt type, and may be a gear type or a configuration having a drive shaft.

  Further, as a different configuration of the medicine spraying unit F, FIG. 8 includes a driven rotating body 48 provided with a number of fan-shaped members so as to rotate in contact with the upper seedling portion of the mat-like seedling W, and this driven A configuration in which the driving force of the rotating body of the driving wheel body 44 that rotates integrally with the rotating body 48 is wound around the driving wheel body 45 that rotates integrally with the drug roll 42 and the driving mechanism 46 formed of an endless belt is shown. Yes.

  By configuring the medicine spraying unit F as shown in FIGS. 7 and 8, the mat-like seedlings W are fed together with the seedling box 1 from the front end of the standby seedling mounting table 38 in the unfolded posture. In conjunction with the conveyance of the mat-like seedlings W, the medicine is sprayed from the medicine spraying unit F to the mat-like seedlings W, and a set amount of medicine can be sprayed without artificially spraying. Become.

[Operation / Effect of Embodiment]
Thus, in the seeder of this invention, by sending the seedling box 1 continuously to the conveyor 2, floor soil Sa is supplied to the seedling box 1 in the floor soil supply part A, and immediately after this, the seedling box is supplied in the irrigation part B. Water is supplied from the bottom wall 1b of 1 in the form of water immersion. Thus, since it supplies with the form which immerses water, compared with the structure which sprinkles water, the pump which pressurizes water is not required, but a structure is simplified and cost reduction is implement | achieved. Moreover, since it is not necessary to connect with water supply facilities, sowing is possible even in an environment where water supply is not provided.

  After this, the seed sowing T is seeded in the sowing part C, the covering soil Sb is supplied in the covering part D, and the medicine U is sprayed in the medicine spraying part E. In addition, since the medicine spraying unit E is configured to spray the medicine U as the seedling box 1 is transported, an actuator such as an electric motor is not required. When the seedling box 1 is not transported, the medicine is not sprayed. There is no waste.

  Furthermore, when the mat-like seedling W is sent to the rice transplanter, the medicine spraying unit F sprays the medicine when the mat-like seedling W is sent in the preliminary seedling mounting portion H. It does not take.

[Another embodiment]
The present invention may be configured as follows in addition to the embodiment described above.

(A) In this invention, as shown in FIG. 9, the position where the irrigation part B is arrange | positioned is set to the conveyance downstream of the sowing part C in the conveyance direction of the conveyance path | route X of the conveyor 2. As shown in FIG. By arranging the irrigation part B in this way, irrigation of the seedling box 1 after sowing is realized. In particular, when performing irrigation in the form of immersing the floor soil Sa after sowing, the water level L at the time of irrigation is set lower than the level sown on the floor soil Sa so that the seeds do not float due to buoyancy during irrigation, Even with such a setting, a good sowing treatment is realized.

(B) Arrangement of the irrigation part B should just be a conveyance downstream side from the floor soil supply part A, for example, may be a conveyance downstream side from the covering soil part D. Moreover, you may arrange | position this irrigation part B in the multiple places in a conveyance path | route.

(C) You may set the level at the time of flooding so that the surface of the floor soil Sa of the seedling raising box 1 may become a level lower than the water surface L of the flooded tank 5 at the time of irrigation. By setting in this way, it is possible to reliably and quickly perform irrigation.

(D) As the irrigation part B, a lifting platform (an example of the flooding means Q) that can be raised and lowered while the seedling box 1 is placed is provided in the submerged tank 5, and when the nursery box 1 reaches the lifting platform, the lifting platform is lowered. The irrigation is performed in such a manner that the bottom wall 1b of the raising seedling box 1 is lowered below the surface of the submerged tank 5, and then the raising seedling box 1 is raised to the original level and sent out. In the case of such a configuration, it is not necessary to form an inclined portion on the conveyor 2 as the inundation treatment area Xq, and the overall length of the transport path X can be shortened.

(E) As the irrigation part B, the arm mechanism etc. which lift the seedling box conveyed by the conveyor 2 as a structure which raises / lowers the seedling box 1 up and down like another embodiment (d) mentioned above (an example of the flooding means Q) The nursery box 1 suspended by the arm mechanism or the like is irrigated in such a manner that the bottom wall 1b of the seedling box 1 is lowered below the surface of the submerged tank 5 by moving it to the submerged tank 5, and thereafter the conveyor The structure which mounts in 2 and conveys to the following seeding part C and the soil covering part D is provided. In the case of such a configuration, it is not necessary to form an inclined portion on the conveyor 2 as the inundation treatment area Xq, and the overall length of the transport path X can be shortened.

  INDUSTRIAL APPLICABILITY The present invention can be used for all seeding machines that transport a seedling box on a conveyor and perform irrigation after supplying floor soil.

DESCRIPTION OF SYMBOLS 1 Seedling box 1b Bottom wall 5 Submerged tank A Floor soil supply part B Irrigation part C Seeding part D Covering part E Chemical spraying part L Water surface Q Inundation means Sa Floor soil Sb Covering soil U Drug X Transport route

Claims (3)

A seeding machine comprising a floor soil supply unit for supplying floor soil to the seedling box, a seeding unit for sowing, and a covering soil part for supplying covering soil, along the transport path of the seedling box,
The transport path for transporting the seedling box after the floor soil has been supplied by the floor soil supply unit includes an irrigation unit that supplies water in a form of being immersed in the seedling box, and this irrigation part stores water. A seeder comprising: a submergence tank; and a submergence means for infiltrating the seedling box by sending the bottom wall of the seedling box to a level lower than the level of water stored in the submergence tank.   The seeder according to claim 1, wherein the irrigation unit is provided on the upstream side of the transport path with respect to the seeding unit.   The seeder according to claim 1 or 2, further comprising a drug spraying unit that sprays the drug onto the transport path through which the seedling box after the floor soil is supplied by the floor soil supply unit is transported.

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