WO2018042678A1 - Seed feeding roll for seeding machine for seedling culture - Google Patents

Seed feeding roll for seeding machine for seedling culture Download PDF

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Publication number
WO2018042678A1
WO2018042678A1 PCT/JP2016/078824 JP2016078824W WO2018042678A1 WO 2018042678 A1 WO2018042678 A1 WO 2018042678A1 JP 2016078824 W JP2016078824 W JP 2016078824W WO 2018042678 A1 WO2018042678 A1 WO 2018042678A1
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WIPO (PCT)
Prior art keywords
feeding
sowing
roll
seeding
groove
Prior art date
Application number
PCT/JP2016/078824
Other languages
French (fr)
Japanese (ja)
Inventor
宏記 藤森
Original Assignee
アグリテクノ矢崎株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2016186286A external-priority patent/JP6755581B2/en
Application filed by アグリテクノ矢崎株式会社 filed Critical アグリテクノ矢崎株式会社
Priority to CN201680088836.9A priority Critical patent/CN109640617B/en
Priority to KR1020197007774A priority patent/KR102279653B1/en
Publication of WO2018042678A1 publication Critical patent/WO2018042678A1/en

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/12—Seeders with feeding wheels
    • A01C7/123—Housings for feed rollers or wheels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/12—Seeders with feeding wheels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/16—Seeders with other distributing devices, e.g. brushes, discs, screws or slides
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/16—Seeders with other distributing devices, e.g. brushes, discs, screws or slides
    • A01C7/163—Gravity distributors

Definitions

  • the present invention is a seedling seeder for seeding paddy rice seed pods as seeds in a seedling box for rice transplanters. And it is related with the structure of the feeding recessed part formed in the outer peripheral surface of the seeding
  • the seeding interval is increased to 18 mm or more, so that seedlings grow into mat seedlings in a seedling box, and a predetermined number of strains are scraped off from the mat seedlings by a rice transplanter at a subsequent stage and planted in the field.
  • a place where the seedlings are not scraped off is generated in the mat seedlings through which the planting claws of the rice transplanter pass, and this causes a lack of stock at the time of planting.
  • the range of adjustment of the vertical feed pitch of mat rice seedlings in a normal rice transplanter is 16 to 18 mm, and the number of seed pods fed from one row of feeding recesses in a horizontal straight line is reduced to a small number with an accurate number of grains. If it can, the space
  • the seed pods are not aligned in the feeding recesses, but the seed potatoes are inserted and overlapped.
  • the seeds are swept out by a subsequent rotating brush rotating in contact with the outer periphery of the seeding and feeding roll, and as a result, there are many cases in which a seed dropout state occurs in the feeding recess.
  • the seed pods are easy to collect obliquely downward, which is one side of the direction in which the screw-shaped grooves are inclined. In order to avoid this, many seed pods are collected on the sowing and feeding rolls. There was a situation in which the load related to the increase was increased, and sowing seeds increased in a row, so that the sowing interval had to be widened. In addition, when the divided sowing and feeding rolls are combined in a staggered arrangement, a small amount can be sowed, but there is a problem that long grain seeds and the like are easily clogged in the feeding recesses.
  • the present invention eliminates these problems, is configured so that the seeds are aligned in the feeding recess, the number of seeds fitted in the feeding recess is reduced, and the pitch of the feeding recess on the outer periphery of the seeding feeding roll
  • the present invention provides a cylindrical seeding feeding roll of a seedling seeding machine, wherein a groove of a feeding recess to be drilled in the seeding feeding roll is drilled in a screw shape so as to wind an outer periphery of the seeding feeding roll,
  • the groove was drilled from the left and right end portions of the seeding and feeding roll to the center position of the left and right width of the seeding and feeding roll, and was also configured in a screw shape opposite to this from the left and right other ends.
  • the opposite groove is drilled to the center position of the left and right widths, and the grooves of the feeding recesses drilled on the outer periphery of the seeding and feeding roll are arranged as V-shaped grooves.
  • the direction of the V-shaped array groove formed by the feeding recess is configured such that the V-shaped tip of the V-shaped array groove is in front of the rotation direction with respect to the rotation direction of the sowing and feeding roll. It is.
  • the seeding and feeding roll is configured such that one cylinder is divided into two left and right, and the screw-shaped groove of the feeding recess is processed so as to be bilaterally symmetric, and then the left and right cylinders are bonded.
  • feeding delivery roll is comprised and the delivery recessed part is formed in the V-shaped arrangement
  • the angle of the groove inclined with respect to the direction of the generatrix on the outer periphery of the seeding and feeding roll in the screw-shaped groove forming the feeding recess is 20 to 35 °.
  • the cross-sectional shape in the direction orthogonal to the axis of the seeding and feeding roll in the screw-like groove of the feeding recess is a depth obtained by increasing the depth by about 10% of the average seed thickness, and the rotation of the seeding and feeding roll.
  • the angle of the front corner of the feeding recess with respect to the direction is a chamfer angle of 30 ° or more.
  • a scraping groove into which a groove scraping fork is fitted is formed in the outer periphery of the sowing feeding roll in the circumferential direction of the outer periphery of the sowing feeding roll.
  • the present invention is parallel to the axial direction of the sowing and feeding roll between the shutter bottom plate constituting the bottom of the shutter and the scraping brush that rotates in contact with the outer periphery of the sowing and feeding roll.
  • An intermediate gate is arranged in the direction, and the intermediate gate is made of an elastic material so as to sweep away the overlapped seed pod and push the seed potato into the groove.
  • the number of screw-shaped grooves in the feeding recesses on the outer periphery of the sowing feeding roll is 40 to 70.
  • the effects of the present invention the following effects can be obtained.
  • a plurality of feeding recesses as screw-like grooves on the outer periphery of the seeding and feeding roll, and attaching a groove angle ⁇ with respect to the axis of the seeding and feeding roll of each groove, the soot is lowered along the grooves.
  • the seeds are aligned without gaps in the feeding recess by the intermediate gate and the V-shaped arrangement groove, and as a result, the sowing accuracy is improved.
  • the seed potatoes in the feeding recess are aligned and seeded on the surface of the seedling box
  • the interval between the seed gluteal muscles can be reduced or eliminated, and a small amount can be dispersed.
  • seedling boxes are sown in a nearly uniform state, and the number of missing stocks can be reduced when planted by a rice transplanter.
  • the intermediate gate the lifting of the seed potato is reduced and the load of the scraping brush is reduced.
  • the perspective view of the seedling sowing plant which has arranged the seedling sowing machine.
  • FIG. 1 Drawing which shows the relationship between the groove
  • FIG. 2 The figure which shows V-shaped feeding recessed part, the groove angle (alpha), and the number of arrangement
  • the drawing which shows the relationship between the groove angle of the feeding recessed part pierced in the sowing feeding roll of the seeding machine for seedling raising, the groove length, and the sowing pitch P.
  • FIG. 1 the structure of the seedling box seeding plant in which the seedling seeding machine B is arranged as a part of the apparatus will be described.
  • a conveyor R on which a conveying roller 5 for conveying a seedling box (not shown) is laid is linearly arranged.
  • a soil putting device A, a seedling sowing machine B, and a soil covering device C are sequentially arranged in the order of the feeding direction F of the seedling box.
  • a driving device H for the transport conveyor R is disposed, and in the subsequent stage of the soil pouring device A, a watering device D for irrigating the surface of the seedling box into which the soil has been placed is disposed. .
  • a seedling sowing machine B is disposed downstream of the irrigation device D, and a soil covering device C is disposed downstream of the seedling sowing machine B. And a seedling box is conveyed along the direction of the conveyance direction F, and sowing of the seed pod is performed in a seedling box.
  • the present invention relates to the structure of a sowing feed roll K of a seedling seeding machine B for sowing seed seeds as seeds on the soil surface that has been put into a seedling box by a soil placing device A.
  • a sowing and feeding roll drive shaft 1 and an intermediate gate 9 are installed between the left and right side plates 4L and 4R, and the sowing and feeding roll K is driven by the sowing and feeding roll driving shaft 1.
  • a chain 42 for rotating the scraping brush drive shaft 6 is wound to drive the scraping brush 33 at a rotational speed synchronized with the rotation of the seeding and feeding roll K.
  • a hopper 18 for putting seed pods as seeds is arranged in the upper part between the side plates 4L and 4R in the seedling sowing machine B, and a shutter 40 and a shutter bottom plate 41 are provided below the hopper 18. It has been. By adjusting the opening degree of the shutter 40 with the shutter adjusting screw 39, the amount of the seed drop falling on the sowing and feeding roll K of the seed seed as a seed can be adjusted.
  • the side guide plate 8 shown in FIG. 7 is fixed inside the left and right side plates 4L and 4R. Yes.
  • the side guide plate 8 is configured in a shape along the outer periphery of the seeding and feeding roll K between the shutter bottom plate 41 and the scraping brush 33.
  • the side guide plate 8 prevents the seeds between the shutter bottom plate 41 and the shutter 40 at the lower part of the hopper 18 from being pressed between the side plates 4L and 4R and the roll side plate 11 of the sowing feeding roll K and being damaged. Therefore, the seed pod is guided in the outer peripheral direction of the sowing feeding roll K.
  • a seed guide device 35 that contacts the scraping brush 33 of the sowing and feeding roll K downstream of the seeding roll K while preventing the seed pods from dropping is abutted. Further, in the subsequent stage of the seed guide device 35, groove scraping forks 2 that fit into the scraping grooves 7 provided on the outer periphery of the sowing feeding roll K shown in FIG. Configured and fixed.
  • an intermediate gate 9 is arranged in parallel with the seeding and feeding roll drive shaft 1.
  • the intermediate gate 9 is an elastic body constituted by a rubber plate or a brush arranged in parallel with the seeding / feeding roll drive shaft 1 of the seeding / feeding roll K, and is provided with an angle in a direction of escaping by the rotation of the seeding / feeding roll K.
  • the urging spring 10 shown in FIG. 2 is configured to come into pressure contact in the direction of the seeding and feeding roll K.
  • the intermediate gate 9 urges the seed soot not to overlap in the feeding recess 3. While being urged by the urging spring 10, the end of the intermediate gate 9 itself is constituted by a rubber plate or a brush, and is elastically urged toward the feeding recess 3 of the sowing feeding roll K.
  • the cylindrical seeding and feeding roll K has a feeding recess 3 on the outer periphery of the resin material and a screw-like groove, and the center position on the left and right from one end of the left sowing and feeding roll KL that is one of the left and right sides of the sowing and feeding roll K. Machined up to. And also from the other end of the right sowing feeding roll KR on the opposite sides of the left and right sides, a V-shaped groove is formed by machining a symmetrical screw-shaped groove to the center position on the left and right. .
  • a plurality of grooves on the outer periphery of the seeding and feeding roll K are defined as V-shaped array grooves.
  • the feeding recess 3 is formed by machining, but the feeding recess 3 formed by molding at the time of resin processing may be used.
  • the groove of the feeding recess 3 is formed in a screw shape so as to wrap around the outer periphery of the cylindrical sowing feeding roll K, and the groove angle is ⁇ .
  • the screw-shaped grooves are drilled from one end of the left and right left sowing feed rolls KL of the sowing feed roll K to the center position of the left and right widths of the sowing feed roll K, and other than the right and left right sowing feed rolls KR. Also from the end, a groove having the same groove angle ⁇ on the opposite side which is configured symmetrically is drilled to the center position.
  • each groove formed by the feeding recess 3 formed on the seeding feeding roll K is arranged in a V shape.
  • the material of the sowing and feeding roll K is made of synthetic resin in the present embodiment, but can be made of metal, and the material is not limited.
  • the direction of the V-shaped arrangement groove formed by the feeding recess 3 is such that the V-shaped arrangement groove has a V-shaped tip (pointed side) in front of the rotation direction with respect to the rotation direction of the sowing and feeding roll K. It is composed.
  • the V-shaped tips of the V-shaped arrangement grooves are ahead of the rotation direction with respect to the rotation direction of the seeding and feeding roll K, the flow of the seed potatoes by rotation and the screw-shaped groove
  • the tilt angles of the slabs are synchronized, and the seed pods are inserted into the screw-like grooves in order, and are aligned in the screw-like grooves as shown in FIGS. 15 and 16. It becomes.
  • the V-shaped array grooves are used, the seeds flow from the center to the left and right ends (downward in the outer rotation direction), and the seeds are prevented from staying at one of the left and right ends of the feeding recess 3. Can do. This makes it possible to accurately drop the minimum number of seed pods onto the surface of the seedling box.
  • the sowing and feeding roll K is divided into a left and right left sowing and feeding roll KL and a right sowing and feeding roll KR, and the screw-shaped groove of the feeding recess 3 is symmetric. Then, the right and left cylinders are bonded and fixed to form one sowing feeding roll K, and the groove of the feeding recess 3 is formed in a V shape. And the roll side plate 11R * 11L is covering the cylindrical part at the right and left ends of one sowing and feeding roll K.
  • the number of grooves on one circumference is preferably 40 to 70. In this embodiment, the number of grooves is 60, and in side view, Arranged every 6 °, this groove is most suitable.
  • the optimum value of the screw-like groove angle ⁇ (an oblique angle with respect to the direction of the generatrix (the line on the outer periphery parallel to the axis) on the outer periphery of the seeding and feeding roll K) is calculated under the following conditions.
  • Weight of buds 33.6 g / 1000 grains
  • Average size of buds 7 mm long and 3.5 mm thick (disclosed in FIG. 19)
  • Seeding amount in seedling box 60 g / box Under the above conditions, 1785 grains [60 ⁇ (33.6 / 1000)] per seedling box will be seeded.
  • the groove angle (roll groove angle) of the feeding recess 3 of the seeding feeding roll K; ⁇ Length of one side of the groove; X Assuming that the seedling box is sown in the V-shaped arrangement, the number of seeds Z arranged in one groove in the V-shaped arrangement is as shown in FIGS. 15 and 16. That is, by increasing the groove angle ⁇ of the feeding recess 3 of the groove of the sowing feeding roll K from 0 ° to 45 ° in order, the length of one side of the groove; X is from 140 mm to 198 mm , Gradually getting longer. The number Z of insertable grains gradually increases from 40 to 56 grains.
  • the relationship between the groove angle ⁇ , the number of insertable grains Z, and the sowing pitch P is illustrated.
  • the groove angle ⁇ increases, the number Z of insertable grains with respect to one screw-shaped groove increases.
  • the number of insertable grains Z of one screw-shaped groove is increased. Therefore, when the necessary sowing pitch P is calculated from the necessary insertable grain number Z, the sowing pitch P is calculated as follows. Can be bigger.
  • the sowing pitch P is not shorter than the vertical feed pitch NT, a place where there is no seedling is generated, and there is a possibility that a missing line will occur. From FIG. 16, it is desirable that the groove angle ⁇ of the groove is 35 ° or less so that the longitudinal feed pitch NT is shorter than 16 mm.
  • the groove angle ⁇ is parallel to the seeding / feeding roll drive shaft 1 of the feeding recess 3 as in the prior art, it is 0 because it is a straight line. Therefore, even if it is assumed that it is a V-shaped arrangement, the number of seed potatoes arranged in a row is calculated to be 40. However, in the case of the conventional left and right straight feeding recesses, however, about 55 grains of seed potatoes are arranged. This is because the seed potatoes are lined up in an overlapping manner, and it is confirmed that the seed potatoes are overlapped and inserted into the feeding recess until the groove angle ⁇ is 20 ° or more experimentally. ing. By setting the angle of the groove angle ⁇ to 20 ° or more, the seed potatoes easily flow downward, and as a result, they are arranged in a row to produce the operation and effect of the present invention.
  • FIG. 15 shows the result of the trial production of the seeding and feeding roll K at this intermediate value of 28 ° and the seeding test. From the above results, when the groove angle ⁇ is 28 °, the surface area of the sowing surface of the seedling box is formed by the length of the vertical feed and the horizontal feed of the mat seedling (15.5 ⁇ 16 mm) It was proved that two or more seed pods were always sown in the grid, so that the seeds could be uniformly sown. Therefore, the optimum groove angle ⁇ is set to 28 °. Thereby, when scraping at a time with the planting claws of the rice transplanter, there are two seedlings, so that they are planted in the farm scene, and no stock loss occurs.
  • the cross-sectional shape of the feeding recess 3 in the direction perpendicular to the axis of the seeding and feeding roll K is 3.8 ⁇ 0.05 mm, which is about 10% higher than the average seedling thickness of 3 mm. Is set to 6.1 mm.
  • angular part of an entrance side is the structure of the linear feeding recessed part along the conventional sowing
  • the angle of the front corner with respect to the radial direction with respect to the rotation direction of the seeding and feeding roll K is set to a chamfering angle of 30 ° or more.
  • the chamfer angle is 30 ° or less, the soot is difficult to enter the feeding recess 3.
  • the feeding recess 3 is formed by gradually reducing the depth of the groove at the left and right ends of the screw-shaped groove, and the feeding recess 3 at the left and right ends. It is drilled so that it disappears.
  • the curvature radius is set to 75 mm so that the groove is gradually shallow.
  • a scraping groove 7 into which the groove scraping fork 2 which is a foreign matter feeding fork is inserted is formed in the circumferential direction of the outer periphery of the seeding feeding roll K.
  • the scraping groove 7 is deeper than the feeding recess 3, is formed in the circumferential direction on the outer periphery of the seeding feeding roll K, and is arranged in parallel with the plurality of rows in the axial direction with a predetermined interval.
  • an intermediate gate 9 is provided at an intermediate position between the sowing feeding roll K and the rotating brush 33. In this embodiment, it arrange
  • the intermediate gate 9 is configured such that an elastic material such as a rubber plate or a brush is supported by a support member and pressed against the sowing and feeding roll K, and when the seeds overlapped in the feeding recess 3 are swept away. At the same time, it plays the role of pushing the seed pods into the grooves so as to align them.
  • the intermediate gate 9 is attached in the horizontal direction, and the attachment angle of the intermediate gate 9 is adjustable.
  • FIG. 18 shows the relationship between the conventional sowing and unwinding roll K ′ and the soot alignment.
  • FIG. 18 (a) shows a state in which the seed pod enters the feeding recess 3 'in the sowing and feeding roll K' having the conventional horizontal straight type feeding recess 3 '.
  • FIG. 18B shows a state in which the soot seed overlaps with the feeding recess 3 ′ in the conventional horizontal straight type feeding recess 3 ′.
  • (C) of FIG. 18 shows the arrangement state of the seed pods sown in the seedling box in the conventional horizontal straight type feeding recess 3 ′.
  • the soot seeds are fitted so as to overlap the feeding recess 3 ′ configured in a straight line in parallel with the seeding feeding roll drive shaft 1, and when the scraping brush 33 scrapes this, the overlap occurs.
  • the two existing grains slipped out of the feeding recess 3 ′.
  • the feeding recess 3 ′ configured in a straight line in parallel with the conventional sowing and feeding roll drive shaft 1 a large number of seed pods overlapped inside enter, so the sowing pitch P needs to be 18 mm or more.
  • FIG. (A) of FIG. 17 has shown the state which entered into the feeding recessed part 3 in the state in which the seed potatoes were arranged in the seeding feeding roll K provided with the V-shaped feeding recessed part 3.
  • FIG. (B) of FIG. 17 has shown the arrangement
  • the groove of the feeding recess 3 drilled in the cylindrical sowing and feeding roll K is drilled in a screw shape so as to wind the outer periphery of the sowing and feeding roll K,
  • the screw-shaped grooves are drilled from the left and right end portions of the sowing and feeding roll K to the center position of the left and right widths of the sowing and feeding roll K, and are also symmetrically reversed from the left and right other end portions.
  • the groove angle ⁇ of the V-shaped feeding recess 3 is set to 20 to 35 ° with respect to the direction of the outer peripheral generatrix of the sowing feeding roll K, so that the sowing pitch P is narrower than the conventional 18 mm. It is possible to obtain a result that at least two grains fall in the square of (15.5 ⁇ 16 mm), which is the area of vertical feeding and horizontal feeding of the mat seedling. It was. This also made it possible to disperse a small amount of seed pods, and even in the case of a small amount of seed sowing, it was possible to eliminate a stock loss when planting with a rice transplanter.
  • the optimum groove angle ⁇ is set to 28 °.
  • channel which the said delivery recessed part 3 comprises was comprised so that the front-end
  • positioning groove might be before the rotation direction with respect to the rotation direction of the seeding
  • the seeds flow synchronously along the V-shaped feeding recess 3 and are aligned in the longitudinal direction, and can be dropped into the feeding recess 3.
  • the seeding and feeding roll K has a structure in which one cylinder is divided into left and right parts as shown in FIGS.
  • the left sowing feeding roll KL and the right sowing feeding roll KR are configured by processing the screw-shaped groove of the feeding recess 3 in the two divided cylinders so as to be bilaterally symmetric, and then the left sowing feeding roll KL.
  • the right sowing and feeding roll KR are fitted and fixed together to form one sowing and feeding roll K, and the feeding recess 3 is formed in a V shape. Therefore, although the processing of the feeding recess 3 of the sowing and feeding roll K is a screw-shaped groove, the sowing and feeding roll K can be manufactured by a cost-effective process without using an expensive processing device. It was.
  • the cross-sectional shape in the direction orthogonal to the axis of the seeding and feeding roll K in the screw-shaped groove of the feeding recess 3 is a depth that is about 10% higher than the average seed soot thickness, it is V-shaped. It became possible to maintain the state in which the seed pods were aligned and fitted one by one into the screw-shaped strips of the array grooves. Further, as in the case of the straight feeding recess 3 along the conventional seeding and feeding roll drive shaft 1, two or more seed pods are not inserted in an overlapping state.
  • the angle of the front corner of the feeding recess 3 with respect to the rotation direction of the seeding feeding roll K is set to be a chamfering angle of 30 ° or more, so that the seeds can easily enter the feeding recess 3, and after entering, It was possible to obtain a feeding recess 3 that was not easily scraped off.
  • the axis of the sowing and feeding roll K is disposed between the shutter bottom plate 41 constituting the bottom of the shutter 40 and the scraping brush 33 rotating in contact with the outer periphery of the sowing and feeding roll K.
  • the intermediate gate 9 is arranged in a direction parallel to the direction, and the intermediate gate 9 is made of an elastic material so that the overlapped soot is swept away and at the same time the soot is pushed into the groove. It was possible to drop the seed pods fitted in the recesses 3 below the seeding feeding roll K in an aligned state without scraping off more than necessary.
  • the scraping groove 7 for the groove scraping fork 2 is formed along the outer periphery of the seeding feeding roll K along the outer periphery separately from the feeding concave portion 3, so that the seeding remaining in the feeding concave portion 3. Seeds that did not fall at the bottom of the feeding roll K could be forcibly dropped by the groove scraping fork 2.
  • the scraping groove 7 of the connection part of the left sowing feeding roll KL and the right sowing feeding roll KR of the sowing feeding roll K is formed, for example, by setting the dimensions so that the scraping groove 7 can be formed when fitted. Has been.
  • the present invention can be used for a seeding machine for uniformly seeding a predetermined amount of seeds on the surface of a seedling box laid with soil.

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  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
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Abstract

The purpose of the present invention is to provide a seed feeding roll for a seeding machine for seedling culture, capable of achieving improved accuracy of seeding and uniformly dispersing a small amount of seeds. In the seed feeding roll, linear grooves of feeding recesses 3 formed in a seed feeding roll K are formed in a helical shape extending around the outer peripheral surface of the seed feeding roll K. The helical linear grooves are formed from one lateral end portion of the seed feeding roll K to the center of the lateral width of the seed feeding roll K, and opposite-site linear grooves with a reverse helical shape symmetrical with the aforementioned grooves are formed from the other lateral end portion to the center. Thus, the multiple linear grooves of the feeding recess 3 on the outer peripheral surface of the seed feeding roll K are arranged in the form of V-shaped grooves.

Description

育苗用播種機の播種繰出ロールSeeding roll of seedling seeder
　本発明は、種子としての水稲の種籾を、田植機用育苗箱に播種する育苗用播種機において、種子ホッパーに投入した種籾を、育苗箱に敷き詰めた土壌の上に、一定量ずつ正確に、かつ、少量ずつでも播種可能とするための播種繰出ロールの外周面に形成する繰出凹部の構成に関する。 The present invention is a seedling seeder for seeding paddy rice seed pods as seeds in a seedling box for rice transplanters. And it is related with the structure of the feeding recessed part formed in the outer peripheral surface of the seeding | feeding | feeding roll for enabling seeding | inoculation even a small amount.
　従来の水稲育苗用播種機において、左右のフレーム側板の間に架設した播種ロールの外周面には、一定間隔をおいて、播種繰出ロールの軸心と平行する横一直線の繰出凹部を多数配設した播種装置が公知となっている。
　また、それ以外にも、同一出願人による出願中の発明において、播種繰出ロールの外周面の全周にわたり巻回するように、スクリュー溝状の繰出凹部を多数形成したものがある。
　また、同一出願人の他の発明において、分割された多数枚の播種繰出ロールの重複組み合わせによって、繰出凹部を横一直線や千鳥状に配列できる播種繰出ロールが出願されている。 In conventional paddy rice seedling seeders, on the outer peripheral surface of the sowing roll laid between the left and right frame side plates, a large number of horizontal straight feeding recesses parallel to the axis of the sowing feeding roll are arranged at regular intervals. Sowing devices are known.
In addition, in the invention pending by the same applicant, there are a plurality of screw groove-shaped feeding recesses formed so as to be wound around the entire outer circumference of the seeding feeding roll.
In another invention of the same applicant, there has been applied for a seeding and feeding roll in which feeding recesses can be arranged in a horizontal straight line or a staggered pattern by overlapping combinations of a plurality of divided seeding and feeding rolls.
特開２００９－９５２５０号公報JP 2009-95250 A
　育苗用播種機において、繰出凹部をロール駆動軸の軸心と平行に横一直線に配列した播種繰出ロールで６０～８０グラムの少量の種籾を播種した場合に、育苗箱の土壌の表面における播種後の種籾の配置状態は、播種繰出ロールの横一直線の凹部と平行な筋が出来上がり、この筋と筋の間の間隔が広く、結果として播種間隔が１８ｍｍ以上となっていた。
　このように、少量散播の場合に播種間隔が１８ｍｍ以上に開くことにより、育苗箱内で苗が育ってマット苗とし、その後の段階である田植機によりマット苗から所定株数を掻き取り圃場に植付ける作業において、田植機の植付爪が通過するマット苗において苗が存在せずに、苗が掻き取られない場所が発生し、これにより植付け時に欠株が生じることになっていた。 After sowing on the soil surface of the seedling box when a small amount of seed seed of 60-80 grams is seeded with a sowing roll in which the feeding recesses are arranged in a horizontal line parallel to the axis of the roll drive shaft, As for the arrangement state of the seed pods, streaks parallel to the horizontal straight recesses of the sowing roll were completed, and the spacing between the streaks was wide, resulting in a sowing interval of 18 mm or more.
Thus, in the case of a small amount of seeding, the seeding interval is increased to 18 mm or more, so that seedlings grow into mat seedlings in a seedling box, and a predetermined number of strains are scraped off from the mat seedlings by a rice transplanter at a subsequent stage and planted in the field. In the attaching operation, a place where the seedlings are not scraped off is generated in the mat seedlings through which the planting claws of the rice transplanter pass, and this causes a lack of stock at the time of planting.
　通常の田植機のマット苗の縦送りピッチの調整範囲は、１６～１８ｍｍであり、横一直線の繰出凹部の一列当たりから繰り出される種籾の粒数を正確な粒数で、少ない粒数に減らすことができれば、播種繰出ロールの繰出凹部の間隔を狭めることができて、播種間隔を狭くすることができる。
　しかし、現状で提供されている播種繰出ロールの繰出凹部では、該繰出凹部に嵌入する種籾の数を減少させることができないので、一列当たりで繰出される種籾の粒数を減らすことができず、苗の縦送りピッチの調整範囲である１６～１８ｍｍ以下に繰出凹部の間隔を狭めることができなかった。
　故に、播種繰出ロールの繰出凹部のピッチ（間隔）を狭くして、種籾の播種数を少量にすることにより、上記のような従来技術の不具合に対応することができなかった。 The range of adjustment of the vertical feed pitch of mat rice seedlings in a normal rice transplanter is 16 to 18 mm, and the number of seed pods fed from one row of feeding recesses in a horizontal straight line is reduced to a small number with an accurate number of grains. If it can, the space | interval of the feeding recessed part of a seeding | feeding feeding roll can be narrowed, and a seeding space | interval can be narrowed.
However, in the feeding recess of the sowing roll provided at present, since the number of seed pods fitted into the feeding recess cannot be reduced, the number of seed pods fed out per row cannot be reduced, The spacing between the feeding recesses could not be reduced to 16-18 mm or less, which is the adjustment range of the vertical feed pitch of the seedlings.
Therefore, by narrowing the pitch (interval) of the feeding recesses of the sowing feeding roll and reducing the number of sowing seeds, it has not been possible to cope with the above-described problems of the prior art.
　また、図１８に示すように、従来の繰出凹部を横一直線に配列した播種繰出ロールでは、繰出凹部内に種籾が整列した状態には並ばず、種籾同士が重なった状態で嵌入し、重なり方によっては、播種繰出ロールの外周に接して回転している後段の回転ブラシで掃き出され、結果として、繰出凹部において種子抜けの状態を生じるケースが多かった。 In addition, as shown in FIG. 18, in the sowing and feeding roll in which the conventional feeding recesses are arranged in a horizontal line, the seed pods are not aligned in the feeding recesses, but the seed potatoes are inserted and overlapped. In some cases, the seeds are swept out by a subsequent rotating brush rotating in contact with the outer periphery of the seeding and feeding roll, and as a result, there are many cases in which a seed dropout state occurs in the feeding recess.
　また、同一出願人の先願である、播種繰出ロールの外周に繰出凹部をスクリュー状に一方向に傾斜して配列した構成の場合には、石やゴミなどの夾雑物がスクリュー状の溝の効果で片側に偏り、播種繰出ロールや回転ブラシが偏った側において偏磨耗を引き起こす可能性があった。 In addition, in the case of a configuration in which the feeding recesses are arranged in a screw shape on the outer periphery of the sowing feeding roll, which is a prior application of the same applicant, impurities such as stones and dust are formed in the screw-like grooves. The effect was biased to one side, and there was a possibility of causing uneven wear on the side where the sowing and feeding rolls and rotating brush were biased.
　また、種籾がスクリュー状の溝が傾斜した方向の片側である、斜め下方に溜まり易くなり、これを回避するためには、播種繰出ロール上に多く種籾を溜めるようにするが、結果として回転ブラシに係る負荷が大きくなり、かつ一列当たりに並ぶ種籾が多くなり、播種間隔を広くせざるを得ないという事情があった。
　また、分割された播種繰出ロールを千鳥状配列に組み合わせた場合には、少量散播は出来るが、長粒種などが繰出凹部に詰まり易いという不具合があった。 In addition, the seed pods are easy to collect obliquely downward, which is one side of the direction in which the screw-shaped grooves are inclined. In order to avoid this, many seed pods are collected on the sowing and feeding rolls. There was a situation in which the load related to the increase was increased, and sowing seeds increased in a row, so that the sowing interval had to be widened.
In addition, when the divided sowing and feeding rolls are combined in a staggered arrangement, a small amount can be sowed, but there is a problem that long grain seeds and the like are easily clogged in the feeding recesses.
　そこで、本発明は、これらの不具合を解消し、繰出凹部内に種籾が整列するように構成し、繰出凹部内に嵌入する種籾の数を減少させて、播種繰出ロールの外周の繰出凹部のピッチ（間隔）を狭くし、これにより育苗箱の表面に出来る播種後の種籾筋の間隔を狭くしたり、無くしたりして、少量散播を可能とした育苗播種機の播種繰出ロールを提供することを課題とする。 Therefore, the present invention eliminates these problems, is configured so that the seeds are aligned in the feeding recess, the number of seeds fitted in the feeding recess is reduced, and the pitch of the feeding recess on the outer periphery of the seeding feeding roll To provide a seeding and feeding roll of a seeding and seeding seeding machine that enables small-scale seeding by narrowing (interval) and thereby narrowing or eliminating the spacing of seeding muscles after sowing that can be formed on the surface of the seedling box. Let it be an issue.
　本発明の解決すべき課題は以上の如くであり、次に該課題を解決するための手段を説明する。 The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.
　本発明は、育苗用播種機の円筒状の播種繰出ロールおいて、播種繰出ロールに穿設する繰出凹部の条溝を播種繰出ロールの外周を巻くようにスクリュー状に穿設し、前記スクリュー状の条溝は、播種繰出ロールの左右の一端部から、播種繰出ロールの左右の幅の中心位置まで穿設し、左右の他端部からも、これと対称的に逆のスクリュー状に構成した反対側の条溝を、左右の幅の中心位置まで穿設して、播種繰出ロール外周に穿設される繰出凹部の各条溝をＶ字状の溝として配列したものである。 The present invention provides a cylindrical seeding feeding roll of a seedling seeding machine, wherein a groove of a feeding recess to be drilled in the seeding feeding roll is drilled in a screw shape so as to wind an outer periphery of the seeding feeding roll, The groove was drilled from the left and right end portions of the seeding and feeding roll to the center position of the left and right width of the seeding and feeding roll, and was also configured in a screw shape opposite to this from the left and right other ends. The opposite groove is drilled to the center position of the left and right widths, and the grooves of the feeding recesses drilled on the outer periphery of the seeding and feeding roll are arranged as V-shaped grooves.
　本発明は、前記繰出凹部が構成するＶ字型配列溝の方向は、播種繰出ロールの回転方向に対して、Ｖ字型配列溝のＶ字の先端が回転方向の前方となるよう構成したものである。 In the present invention, the direction of the V-shaped array groove formed by the feeding recess is configured such that the V-shaped tip of the V-shaped array groove is in front of the rotation direction with respect to the rotation direction of the sowing and feeding roll. It is.
　本発明は、前記播種繰出ロールは、１本の円筒を左右に二分割し、それぞれ左右対称となるように、繰出凹部のスクリュー状の条溝を加工した構成とし、その後に左右の円筒を接着固定することで、１本の播種繰出ロールを構成し、繰出凹部をＶ字型配列溝に形成したものである。 According to the present invention, the seeding and feeding roll is configured such that one cylinder is divided into two left and right, and the screw-shaped groove of the feeding recess is processed so as to be bilaterally symmetric, and then the left and right cylinders are bonded. By fixing, one seeding | feeding delivery roll is comprised and the delivery recessed part is formed in the V-shaped arrangement | sequence groove | channel.
　本発明は、前記繰出凹部を構成するスクリュー状の条溝における播種繰出ロールの外周の母線の方向に対して傾斜する条溝角度は、２０～３５°としたものである。 In the present invention, the angle of the groove inclined with respect to the direction of the generatrix on the outer periphery of the seeding and feeding roll in the screw-shaped groove forming the feeding recess is 20 to 35 °.
　本発明は、前記繰出凹部のスクリュー状の条溝における播種繰出ロールの軸心に直交する方向の断面形状は、深さを平均種籾厚さの約１０％アップした深さとし、播種繰出ロールの回転方向に対して、繰出凹部の前側の角部の角度は、３０°以上の面取り角度としたものである。 In the present invention, the cross-sectional shape in the direction orthogonal to the axis of the seeding and feeding roll in the screw-like groove of the feeding recess is a depth obtained by increasing the depth by about 10% of the average seed thickness, and the rotation of the seeding and feeding roll. The angle of the front corner of the feeding recess with respect to the direction is a chamfer angle of 30 ° or more.
　本発明は、播種繰出ロールの外周には、溝掻出しフォークが嵌入する掻取り溝を播種繰出ロールの外周の円周方向に穿設するものである。 In the present invention, a scraping groove into which a groove scraping fork is fitted is formed in the outer periphery of the sowing feeding roll in the circumferential direction of the outer periphery of the sowing feeding roll.
　本発明は、前記播種繰出ロールの外周で、シャッターの底部を構成するシャッター底板と、播種繰出ロールの外周に接して回転する掻取りブラシとの間に、播種繰出ロールの軸心方向と平行する方向に中間ゲートを配置し、前記中間ゲートは、弾性材により構成し、重なった種籾を掃き落とすと同時に種籾を条溝内に押し込む構成としたものである。 In the outer periphery of the sowing and feeding roll, the present invention is parallel to the axial direction of the sowing and feeding roll between the shutter bottom plate constituting the bottom of the shutter and the scraping brush that rotates in contact with the outer periphery of the sowing and feeding roll. An intermediate gate is arranged in the direction, and the intermediate gate is made of an elastic material so as to sweep away the overlapped seed pod and push the seed potato into the groove.
　本発明は、前記播種繰出ロールの外周における繰出凹部のスクリュー状の条溝の数は、４０～７０本としたものである。 In the present invention, the number of screw-shaped grooves in the feeding recesses on the outer periphery of the sowing feeding roll is 40 to 70.
　本発明の効果として、次のような効果を奏する。
　播種繰出ロールの外周に穿設する繰出凹部をスクリュー状の条溝として複数設けて、各条溝の播種繰出ロールの軸心に対する条溝角度αを付けることによって、種籾が条溝に沿って下方（外側）に流れ易くなり、結果的に種籾が条溝に一列に並ぶという効果を得ることができたのである。 As the effects of the present invention, the following effects can be obtained.
By providing a plurality of feeding recesses as screw-like grooves on the outer periphery of the seeding and feeding roll, and attaching a groove angle α with respect to the axis of the seeding and feeding roll of each groove, the soot is lowered along the grooves. As a result, it was easy to flow outward (outside), and as a result, it was possible to obtain the effect that the seed potatoes were lined up in a row.
　また、中間ゲートとＶ字型配列溝により繰出凹部内に種籾が隙間なく整列し、その結果、散播精度が向上するようになったのである。
　また、繰出凹部内に嵌入する種籾の数を減少させて、播種繰出ロールの外周の繰出凹部の間隔（ピッチ）を狭くしても繰出凹部内の種籾は整列し、育苗箱の表面に出来る播種後の種籾筋の間隔は狭くしたり無くしたりもでき、少量散播を可能とすることができる。
　これにより、均一に近い状態で育苗箱に播種され、田植機による植付け時において、欠株を少なくすることができるのである。
　また、中間ゲートを設けることにより、種籾の持ち上がりが減少し、掻取りブラシの負荷が軽減する。 In addition, the seeds are aligned without gaps in the feeding recess by the intermediate gate and the V-shaped arrangement groove, and as a result, the sowing accuracy is improved.
In addition, even if the number of seed pods inserted into the feeding recess is reduced and the spacing (pitch) between the feeding recesses on the outer periphery of the sowing feeding roll is reduced, the seed potatoes in the feeding recess are aligned and seeded on the surface of the seedling box The interval between the seed gluteal muscles can be reduced or eliminated, and a small amount can be dispersed.
As a result, seedling boxes are sown in a nearly uniform state, and the number of missing stocks can be reduced when planted by a rice transplanter.
Further, by providing the intermediate gate, the lifting of the seed potato is reduced and the load of the scraping brush is reduced.
育苗用播種機を配置した育苗用播種プラントの斜視図。The perspective view of the seedling sowing plant which has arranged the seedling sowing machine. 育苗用播種機の右側面図。The right view of a seedling seeding machine. 育苗用播種機の左側面図。The left view of the seedling seeder. 育苗用播種機の正面図。The front view of the seedling seeding machine. 育苗用播種機における播種繰出ロールと掻取りブラシとシャッターと溝掻出しフォークの配置を示す側面図。The side view which shows arrangement | positioning of the sowing | feeding roll, scraping brush, shutter, and groove | channel scraping fork in the sowing machine for seedling raising. 播種繰出ロールと掻取りブラシとシャッターと中間ゲートの配置を示す側面図。The side view which shows arrangement | positioning of a sowing feed roll, a scraping brush, a shutter, and an intermediate gate. 育苗用播種機の内部におけるシャッターの側面に配置する側面ガイド板の形状を示す側面図。The side view which shows the shape of the side guide plate arrange | positioned in the side surface of the shutter in the inside of the seedling machine for raising seedlings. 育苗用播種機の播種繰出ロールの正面図。The front view of the sowing | feeding out roll of the sowing machine for seedling raising. ロール側板の側から見た播種繰出ロールの側面図。The side view of the seeding | feeding delivery roll seen from the roll side plate side. 育苗用播種機の播種繰出ロールの左播種繰出ロールの正面図。The front view of the left sowing | feeding delivery roll of the sowing | feeding delivery roll of the sowing machine for seedling raising. 本発明の育苗用播種機の播種繰出ロールの右播種繰出ロールの正面図。The front view of the right sowing | feeding delivery roll of the sowing | feeding delivery roll of the seedling seeding machine of this invention. 左播種繰出ロールの側面図。A side view of a left sowing feed roll. 繰出凹部の播種繰出ロール軸心方向に直交方向の側面断面図。Side surface sectional drawing of a orthogonal direction to the seeding | feeding roll axial center direction of a feeding recessed part. 繰出凹部の端部の播種繰出ロールの軸心方向に平行方向の正面断面図。Front sectional drawing of a direction parallel to the axial center direction of the seeding | feeding delivery roll of the edge part of a delivery recessed part. （ａ）育苗用播種機の播種繰出ロールに穿設した繰出凹部の条溝角度αと条溝長さと嵌入可能粒数の関係を示す図面。（ｂ）Ｖ字型繰出凹部と条溝角度αと種籾の配置数とを示す図。(A) Drawing which shows the relationship between the groove | channel angle α of the feeding recessed part pierced in the sowing | feeding feeding roll of the seedling seedling machine, the groove length, and the number of grains that can be inserted. (B) The figure which shows V-shaped feeding recessed part, the groove angle (alpha), and the number of arrangement | positioning of a soot seed. 育苗用播種機の播種繰出ロールに穿設した繰出凹部の条溝角度と、条溝長さと播種ピッチＰの関係を示す図面。The drawing which shows the relationship between the groove angle of the feeding recessed part pierced in the sowing feeding roll of the seeding machine for seedling raising, the groove length, and the sowing pitch P. （ａ）Ｖ字型繰出凹部を具備した播種繰出ロールにおける種籾が整列した状態で繰出凹部に入った状態の側面図。（ｂ）Ｖ字型繰出凹部を具備した播種繰出ロールにおける播種された種籾の配置状態を示す平面図。(A) The side view of the state which entered the feeding recessed part in the state in which the soot seeds in the seeding | feeding feeding roll which comprised the V-shaped feeding recessed part aligned. (B) The top view which shows the arrangement | positioning state of the seed sowing seed in the sowing | feeding feeding roll which comprised the V-shaped feeding recessed part. （ａ）従来の横一直線型の繰出凹部を具備した播種繰出ロールにおける種籾が繰出凹部に入った状態の側面図。（ｂ）同じく従来の横一直線型の繰出凹部における種籾が繰出凹部内に重なりあった状態を示す側面図。（ｃ）同じく従来の横一直線型の繰出凹部における播種された種籾の配置状態を示す平面図。(A) The side view of the state in which the soot seed in the sowing | feeding feeding roll which comprised the conventional horizontal straight type | mold feeding recessed part entered the feeding recessed part. (B) The side view which shows the state in which the seed soup in the conventional horizontal straight type | formula delivery recessed part overlapped in the delivery recessed part. (C) The top view which shows the arrangement | positioning state of the seed sowing seed | species in the conventional horizontal straight type | mold delivery recessed part similarly. 種子の中で種籾の平均寸法を示す図面。Drawing which shows the average dimension of a seed pod among seeds.
　図１において、育苗用播種機Ｂを装置の一部として配置した、育苗箱用播種プラントの構成について説明する。
　育苗箱（図示せず）を搬送するための搬送ローラー５を架設した搬送コンベアＲが、直線的に配置されている。該搬送コンベアＲの上に、育苗箱の搬送方向Ｆの順に沿って、土入れ装置Ａと育苗用播種機Ｂと覆土装置Ｃとを順番に配置している。
　前記土入れ装置Ａの前には、搬送コンベアＲの駆動装置Ｈが配置され、該土入れ装置Ａの後段には、土壌を投入した育苗箱の表面に灌水する灌水装置Ｄが配置されている。 In FIG. 1, the structure of the seedling box seeding plant in which the seedling seeding machine B is arranged as a part of the apparatus will be described.
A conveyor R on which a conveying roller 5 for conveying a seedling box (not shown) is laid is linearly arranged. On the transport conveyor R, a soil putting device A, a seedling sowing machine B, and a soil covering device C are sequentially arranged in the order of the feeding direction F of the seedling box.
In front of the soil pouring device A, a driving device H for the transport conveyor R is disposed, and in the subsequent stage of the soil pouring device A, a watering device D for irrigating the surface of the seedling box into which the soil has been placed is disposed. .
　前記灌水装置Ｄの後段に育苗用播種機Ｂが配置され、更に該育苗用播種機Ｂの後段に覆土装置Ｃが配置されている。
　そして、育苗箱は搬送方向Ｆの方向に沿って搬送されて、育苗箱内に種籾の播種が行われる。
　本発明は、育苗箱に土入れ装置Ａにより投入された土壌面に、種子である種籾を播種する育苗用播種機Ｂの播種繰出ロールＫの構造に関するものである。 A seedling sowing machine B is disposed downstream of the irrigation device D, and a soil covering device C is disposed downstream of the seedling sowing machine B.
And a seedling box is conveyed along the direction of the conveyance direction F, and sowing of the seed pod is performed in a seedling box.
The present invention relates to the structure of a sowing feed roll K of a seedling seeding machine B for sowing seed seeds as seeds on the soil surface that has been put into a seedling box by a soil placing device A.
　図２、図３、図４、図５、図６において、育苗用播種機Ｂにおける播種繰出ロールＫと、掻取りブラシ３３と、シャッター４０の配置について説明する。
　前記育苗用播種機Ｂは、左右の側板４Ｌ・４Ｒの間に、播種繰出ロール駆動軸１と中間ゲート９を架設し、前記播種繰出ロール駆動軸１により播種繰出ロールＫを駆動している。前記播種繰出ロールＫの回転と同期した回転数により、前記掻取りブラシ３３を駆動すべく、掻取りブラシ駆動軸６を回転するチエーン４２が巻回されている。 2, 3, 4, 5, and 6, the arrangement of the sowing feeding roll K, the scraping brush 33, and the shutter 40 in the seedling sowing machine B will be described.
In the seedling sowing machine B, a sowing and feeding roll drive shaft 1 and an intermediate gate 9 are installed between the left and right side plates 4L and 4R, and the sowing and feeding roll K is driven by the sowing and feeding roll driving shaft 1. A chain 42 for rotating the scraping brush drive shaft 6 is wound to drive the scraping brush 33 at a rotational speed synchronized with the rotation of the seeding and feeding roll K.
　前記育苗用播種機Ｂにおける側板４Ｌ・４Ｒの間の上部には、種子である種籾を投入するためのホッパー１８が配置されており、該ホッパー１８の下部に、シャッター４０とシャッター底板４１が設けられている。
　前記シャッター４０の開度を、シャッター調節螺子３９により調整することで、種子である種籾の播種繰出ロールＫに落下する量を調整可能としている。 A hopper 18 for putting seed pods as seeds is arranged in the upper part between the side plates 4L and 4R in the seedling sowing machine B, and a shutter 40 and a shutter bottom plate 41 are provided below the hopper 18. It has been.
By adjusting the opening degree of the shutter 40 with the shutter adjusting screw 39, the amount of the seed drop falling on the sowing and feeding roll K of the seed seed as a seed can be adjusted.
　また、前記ホッパー１８から播種繰出ロールＫの方向へ種籾がスムーズに落下するのを案内すべく、図７に図示した側面ガイド板８が、左右の側板４Ｌ・４Ｒの間の内側に固定されている。
　前記側面ガイド板８は、シャッター底板４１から掻取りブラシ３３までの間で、播種繰出ロールＫの外周に沿った形状に構成されている。
　前記側面ガイド板８は、ホッパー１８の下部のシャッター底板４１とシャッター４０の間の種籾が、側板４Ｌ・４Ｒと、播種繰出ロールＫのロール側板１１の間に入り込んで押圧され、傷つくのを阻止すべく、種籾を播種繰出ロールＫの外周方向に案内するものである。 Further, in order to guide the seed dripping smoothly from the hopper 18 toward the sowing feeding roll K, the side guide plate 8 shown in FIG. 7 is fixed inside the left and right side plates 4L and 4R. Yes.
The side guide plate 8 is configured in a shape along the outer periphery of the seeding and feeding roll K between the shutter bottom plate 41 and the scraping brush 33.
The side guide plate 8 prevents the seeds between the shutter bottom plate 41 and the shutter 40 at the lower part of the hopper 18 from being pressed between the side plates 4L and 4R and the roll side plate 11 of the sowing feeding roll K and being damaged. Therefore, the seed pod is guided in the outer peripheral direction of the sowing feeding roll K.
　図５において図示する如く、前記播種繰出ロールＫの掻取りブラシ３３に対して搬送方向の後段には、種籾の落下を防いで下方まで案内する種子ガイド装置３５が接当されている。
　また、前記種子ガイド装置３５の後段には、図４に図示する播種繰出ロールＫの外周に設けた掻取り溝７に嵌入する、溝掻出しフォーク２が、掻取り溝７の数だけ連続して構成されて固定されている。 As shown in FIG. 5, a seed guide device 35 that contacts the scraping brush 33 of the sowing and feeding roll K downstream of the seeding roll K while preventing the seed pods from dropping is abutted.
Further, in the subsequent stage of the seed guide device 35, groove scraping forks 2 that fit into the scraping grooves 7 provided on the outer periphery of the sowing feeding roll K shown in FIG. Configured and fixed.
　また、Ｖ字型の繰出凹部３を穿設した播種繰出ロールＫの、種籾の整列効果を向上させるために、図６に図示する如く、前記シャッター底板４１と掻取りブラシ３３との間の位置に、播種繰出ロール駆動軸１と平行して、中間ゲート９が配置されている。
　前記中間ゲート９は、播種繰出ロールＫの播種繰出ロール駆動軸１と平行に配置されたゴム板またはブラシにより構成された弾性体であり、播種繰出ロールＫの回転により逃げる方向の角度が付けられており、図２に示す付勢バネ１０により、播種繰出ロールＫの方向に圧接するように構成されている。 Further, in order to improve the seed soot alignment effect of the sowing and feeding roll K provided with the V-shaped feeding recess 3, the position between the shutter bottom plate 41 and the scraping brush 33 as shown in FIG. In addition, an intermediate gate 9 is arranged in parallel with the seeding and feeding roll drive shaft 1.
The intermediate gate 9 is an elastic body constituted by a rubber plate or a brush arranged in parallel with the seeding / feeding roll drive shaft 1 of the seeding / feeding roll K, and is provided with an angle in a direction of escaping by the rotation of the seeding / feeding roll K. The urging spring 10 shown in FIG. 2 is configured to come into pressure contact in the direction of the seeding and feeding roll K.
　前記中間ゲート９により、繰出凹部３内で種籾が重ならないように付勢しているのである。前記付勢バネ１０により付勢すると共に、前記中間ゲート９自体の先端をゴム板またはブラシなどで構成して、播種繰出ロールＫの繰出凹部３に向けて弾性付勢しているのである。 The intermediate gate 9 urges the seed soot not to overlap in the feeding recess 3. While being urged by the urging spring 10, the end of the intermediate gate 9 itself is constituted by a rubber plate or a brush, and is elastically urged toward the feeding recess 3 of the sowing feeding roll K.
　図８から図１４において、播種繰出ロールＫに穿設した繰出凹部３の形状について説明する。
　円筒状の播種繰出ロールＫは、一例として樹脂材の外周に繰出凹部３を、スクリュー状の条溝として、播種繰出ロールＫの左右の一方である左播種繰出ロールＫＬの一端から左右の中心位置まで機械加工している。そして、左右の反対側の右播種繰出ロールＫＲの他端からも、これと対称のスクリュー状の条溝を左右の中心位置まで機械加工することで、Ｖ字状の条溝を形成している。この播種繰出ロールＫの外周上の複数の条溝をＶ字型配列溝とする。本実施例においては、機械加工により繰出凹部３を形成しているが、樹脂加工時に成型加工した繰出凹部３としてもよい。 8 to 14, the shape of the feeding recess 3 formed in the seeding feeding roll K will be described.
As an example, the cylindrical seeding and feeding roll K has a feeding recess 3 on the outer periphery of the resin material and a screw-like groove, and the center position on the left and right from one end of the left sowing and feeding roll KL that is one of the left and right sides of the sowing and feeding roll K. Machined up to. And also from the other end of the right sowing feeding roll KR on the opposite sides of the left and right sides, a V-shaped groove is formed by machining a symmetrical screw-shaped groove to the center position on the left and right. . A plurality of grooves on the outer periphery of the seeding and feeding roll K are defined as V-shaped array grooves. In the present embodiment, the feeding recess 3 is formed by machining, but the feeding recess 3 formed by molding at the time of resin processing may be used.
　育苗用播種機Ｂの播種繰出ロールＫにおいて、繰出凹部３の条溝を、円筒状の播種繰出ロールＫの外周を巻くようにスクリュー状に穿設し、その条溝角度をαとしている。該スクリュー状の条溝は、播種繰出ロールＫの左右の左播種繰出ロールＫＬの一端部から、播種繰出ロールＫの左右の幅の中心位置まで穿設し、左右の右播種繰出ロールＫＲの他端部からも、これと対称的に構成した反対側の同じ条溝角度αの条溝を中心位置まで穿設する。こうして、播種繰出ロールＫ上に穿設する繰出凹部３が形成する各条溝はＶ字状として配列されることになる。
　播種繰出ロールＫの材質は、本実施形態では合成樹脂で構成されるが、金属で構成することも可能であり、その材質は限定するものではない。 In the sowing feeding roll K of the seedling sowing machine B, the groove of the feeding recess 3 is formed in a screw shape so as to wrap around the outer periphery of the cylindrical sowing feeding roll K, and the groove angle is α. The screw-shaped grooves are drilled from one end of the left and right left sowing feed rolls KL of the sowing feed roll K to the center position of the left and right widths of the sowing feed roll K, and other than the right and left right sowing feed rolls KR. Also from the end, a groove having the same groove angle α on the opposite side which is configured symmetrically is drilled to the center position. Thus, each groove formed by the feeding recess 3 formed on the seeding feeding roll K is arranged in a V shape.
The material of the sowing and feeding roll K is made of synthetic resin in the present embodiment, but can be made of metal, and the material is not limited.
　前記繰出凹部３が構成するＶ字型配列溝の方向は、播種繰出ロールＫの回転方向に対して、Ｖ字型配列溝のＶ字の先端（尖った側）が回転方向の前方となるよう構成している。
　このように、播種繰出ロールＫの回転方向に対して、Ｖ字型配列溝のＶ字の先端が回転方向の前方となるよう構成することにより、回転による種籾の流れと、スクリュー状の条溝の傾斜角が同調した状態となり、スクリュー状の条溝に対して種籾が、一粒ずつ順序よく嵌入して、スクリュー状の条溝内で、図１５、図１６に示すように、整列した状態となるのである。
　また、Ｖ字型配列溝としているので、種籾は中央から左右の端部（外側回転方向下方）に流れるようになり、繰出凹部３の左右の一方の端部に種籾が滞留することを防ぐことができる。
　これにより、最小限度の数の種籾を、正確に育苗箱の表面に落下させることが可能となる。 The direction of the V-shaped arrangement groove formed by the feeding recess 3 is such that the V-shaped arrangement groove has a V-shaped tip (pointed side) in front of the rotation direction with respect to the rotation direction of the sowing and feeding roll K. It is composed.
In this way, by configuring the V-shaped tips of the V-shaped arrangement grooves to be ahead of the rotation direction with respect to the rotation direction of the seeding and feeding roll K, the flow of the seed potatoes by rotation and the screw-shaped groove The tilt angles of the slabs are synchronized, and the seed pods are inserted into the screw-like grooves in order, and are aligned in the screw-like grooves as shown in FIGS. 15 and 16. It becomes.
In addition, since the V-shaped array grooves are used, the seeds flow from the center to the left and right ends (downward in the outer rotation direction), and the seeds are prevented from staying at one of the left and right ends of the feeding recess 3. Can do.
This makes it possible to accurately drop the minimum number of seed pods onto the surface of the seedling box.
　また、前記播種繰出ロールＫは、１本の円筒を左右の左播種繰出ロールＫＬと右播種繰出ロールＫＲとに二分割し、左右が対称となるように、繰出凹部３のスクリュー状の条溝を加工した構成とし、その後に左右の円筒を接着固定することで、１本の播種繰出ロールＫを構成し、繰出凹部３の条溝がＶ字型となるように形成している。
　そして、１本の播種繰出ロールＫの左右の端部にロール側板１１Ｒ・１１Ｌが筒部を閉塞するように蓋をしている。
　播種繰出ロールＫの繰出凹部３までの半径が２０３ｍｍとしたとき、一周の条溝数は、４０～７０本が好適であるが、本実施態様においては、条溝は６０本とし、側面視で６°毎に配置し、この条溝の配置が最も適している。 The sowing and feeding roll K is divided into a left and right left sowing and feeding roll KL and a right sowing and feeding roll KR, and the screw-shaped groove of the feeding recess 3 is symmetric. Then, the right and left cylinders are bonded and fixed to form one sowing feeding roll K, and the groove of the feeding recess 3 is formed in a V shape.
And the roll side plate 11R * 11L is covering the cylindrical part at the right and left ends of one sowing and feeding roll K.
When the radius to the feeding recess 3 of the seeding and feeding roll K is 203 mm, the number of grooves on one circumference is preferably 40 to 70. In this embodiment, the number of grooves is 60, and in side view, Arranged every 6 °, this groove is most suitable.
　前記スクリュー状の条溝角度α（播種繰出ロールＫ外周の母線（軸心と平行な外周上の線）の方向に対する斜めの角度）の最適値は以下の条件で算出する。
　　催芽籾の重量；３３．６ｇ／１０００粒
　　催芽籾の平均寸法；長さ７ｍｍ・厚み３．５ｍｍ（図１９において開示）
　　育苗箱の寸法；縦５８０ｍｍ×横２８０ｍｍ
　　育苗箱への播種量；６０ｇ／箱
　上記の条件で、育苗箱１枚当たり１７８５粒［６０÷（３３．６／１０００）］を播種することとなる。 The optimum value of the screw-like groove angle α (an oblique angle with respect to the direction of the generatrix (the line on the outer periphery parallel to the axis) on the outer periphery of the seeding and feeding roll K) is calculated under the following conditions.
Weight of buds: 33.6 g / 1000 grains Average size of buds: 7 mm long and 3.5 mm thick (disclosed in FIG. 19)
Nursery box dimensions: 580 mm long x 280 mm wide
Seeding amount in seedling box: 60 g / box Under the above conditions, 1785 grains [60 ÷ (33.6 / 1000)] per seedling box will be seeded.
　図１５と図１６において、
　　　播種繰出ロールＫの繰出凹部３の条溝角度（ロール溝角度）；α
　　　条溝の１辺の長さ；Ｘ
とすると、Ｖ字型配列のまま育苗箱に播種されるとすると、Ｖ字型配列の１本の条溝に並ぶ種籾数Ｚは、図１５と図１６に図示した数の通りとなる。
　即ち、播種繰出ロールＫの条溝の繰出凹部３の条溝角度αを０°から４５°まで、順に大きくして行くことにより、条溝の１辺の長さ；Ｘは、１４０ｍｍから１９８ｍｍまで、徐々に長くなって行く。そして、嵌入可能粒数Ｚも４０粒から５６粒まで徐々に多くなって行くのである。 15 and 16,
The groove angle (roll groove angle) of the feeding recess 3 of the seeding feeding roll K; α
Length of one side of the groove; X
Assuming that the seedling box is sown in the V-shaped arrangement, the number of seeds Z arranged in one groove in the V-shaped arrangement is as shown in FIGS. 15 and 16.
That is, by increasing the groove angle α of the feeding recess 3 of the groove of the sowing feeding roll K from 0 ° to 45 ° in order, the length of one side of the groove; X is from 140 mm to 198 mm , Gradually getting longer. The number Z of insertable grains gradually increases from 40 to 56 grains.
　また、図１６において、条溝角度αと嵌入可能粒数Ｚと播種ピッチＰの関係を図示している。
　条溝角度αが大きくなると、１本のスクリュー状の条溝に対する嵌入可能粒数Ｚも多くなる。
　Ｖ字型配列溝の場合には、１本のスクリュー状の条溝の嵌入可能粒数Ｚが多くなるので、必要な嵌入可能粒数Ｚから必要な播種ピッチＰを算出すると、播種ピッチＰは大きくすることができる。 In addition, in FIG. 16, the relationship between the groove angle α, the number of insertable grains Z, and the sowing pitch P is illustrated.
When the groove angle α increases, the number Z of insertable grains with respect to one screw-shaped groove increases.
In the case of a V-shaped array groove, the number of insertable grains Z of one screw-shaped groove is increased. Therefore, when the necessary sowing pitch P is calculated from the necessary insertable grain number Z, the sowing pitch P is calculated as follows. Can be bigger.
　田植機の一般的な苗取り回数は、１箱の育苗箱のマット苗に対して、縦送りが１８回、横送りが３６回であり、マット苗の送りピッチで示せば、横送りピッチＮＹが１５．５ｍｍ（ＮＪ＝２８０÷１８回）、縦送りピッチＮＴが１６ｍｍ（ＮＴ＝５８０÷３６回）となる。
　この結果、播種ピッチＰは縦送りピッチＮＴが１６ｍｍより短くないと、苗の無い場所が発生することとなり、欠株が発生する可能性が生じる。
　図１６より、条溝の条溝角度αは、縦送りピッチＮＴが１６ｍｍより短くするために、３５°以下であることが望ましいこととなる。 The general number of seedlings of the rice transplanter is 18 times for vertical feed and 36 times for horizontal feed with respect to mat seedlings in one nursery box. Is 15.5 mm (NJ = 280 ÷ 18 times), and the longitudinal feed pitch NT is 16 mm (NT = 580 ÷ 36 times).
As a result, if the sowing pitch P is not shorter than the vertical feed pitch NT, a place where there is no seedling is generated, and there is a possibility that a missing line will occur.
From FIG. 16, it is desirable that the groove angle α of the groove is 35 ° or less so that the longitudinal feed pitch NT is shorter than 16 mm.
　一方、条溝角度αが従来の技術の如く、繰出凹部３の播種繰出ロール駆動軸１と平行にした場合は、一直線であるから、０である。故に、Ｖ字型配列であると仮定しても、一列に並ぶ種籾の粒数を計算すると４０粒となる。
　しかし、実際には従来の左右一直線の繰出凹部の場合には、種籾の５５粒程度が並んでいる。これば種籾が重なって並んでいるためであり、試験的に条溝角度αが２０°以上までは、繰出凹部内に種籾が重なって嵌入することが認められるので、同じ傾向にあることがわかっている。条溝角度αの角度を２０°以上に付けることによって種籾が下方に流れ易くなり、結果一列に並ぶのが本発明の作用と効果を生み出すのである。 On the other hand, when the groove angle α is parallel to the seeding / feeding roll drive shaft 1 of the feeding recess 3 as in the prior art, it is 0 because it is a straight line. Therefore, even if it is assumed that it is a V-shaped arrangement, the number of seed potatoes arranged in a row is calculated to be 40.
However, in the case of the conventional left and right straight feeding recesses, however, about 55 grains of seed potatoes are arranged. This is because the seed potatoes are lined up in an overlapping manner, and it is confirmed that the seed potatoes are overlapped and inserted into the feeding recess until the groove angle α is 20 ° or more experimentally. ing. By setting the angle of the groove angle α to 20 ° or more, the seed potatoes easily flow downward, and as a result, they are arranged in a row to produce the operation and effect of the present invention.
　従って、最適な条溝角度αは、２０～３５°ということになる。今回この中間値である２８°で播種繰出ロールＫを試作し、播種テストした結果が図１５において図示されている。
　以上の結果から、条溝角度αを２８°とした場合には、育苗箱の播種面の表面積が、マット苗の縦送りと横送りの長さにより形成される（１５．５×１６ｍｍ）のマス目の中に、必ず種籾が２粒以上播種されて、均一に播種できることが実証された。よって、最適の条溝角度αは２８°とする。
　これにより、田植機の植付爪により一回に掻きとる場合に、２本の育苗が存在するので、これが圃場面に植付けられることになり、欠株が発生しないのである。 Therefore, the optimum groove angle α is 20 to 35 °. FIG. 15 shows the result of the trial production of the seeding and feeding roll K at this intermediate value of 28 ° and the seeding test.
From the above results, when the groove angle α is 28 °, the surface area of the sowing surface of the seedling box is formed by the length of the vertical feed and the horizontal feed of the mat seedling (15.5 × 16 mm) It was proved that two or more seed pods were always sown in the grid, so that the seeds could be uniformly sown. Therefore, the optimum groove angle α is set to 28 °.
Thereby, when scraping at a time with the planting claws of the rice transplanter, there are two seedlings, so that they are planted in the farm scene, and no stock loss occurs.
　繰出凹部３の播種繰出ロールＫの軸心に直交する方向の断面形状は、図１３に示す如く、深さは平均種籾厚さ３ｍｍの約１０％アップの３．８±０．０５ｍｍとし、幅は６．１ｍｍとしている。また、繰出凹部３のＶ字型配列溝の前部の播種繰出ロールＫの回転方向に対して、入口側の角部は、従来の播種繰出ロール駆動軸１に沿った一直線の繰出凹部の構成では、面取り角度が半径方向に対して４５°であるが、Ｖ字型配列溝の場合には、従来の如く４５°とすると、種籾が繰出凹部３から逃げ易くなるのである。この不具合を解消するために、３０°の面取りとしている。つまり、播種繰出ロールＫの回転方向に対して、前側の角部の半径方向に対する角度は、３０°以上の面取り角度とした。なお、逆に面取り角度が３０°以下では、種籾が繰出凹部３に入り難くなる。 As shown in FIG. 13, the cross-sectional shape of the feeding recess 3 in the direction perpendicular to the axis of the seeding and feeding roll K is 3.8 ± 0.05 mm, which is about 10% higher than the average seedling thickness of 3 mm. Is set to 6.1 mm. Moreover, the corner | angular part of an entrance side is the structure of the linear feeding recessed part along the conventional sowing | feeding feeding roll drive shaft 1 with respect to the rotation direction of the sowing | feeding feeding roll K of the front part of the V-shaped arrangement | sequence groove | channel of the feeding recessed part 3. Then, the chamfering angle is 45 ° with respect to the radial direction. However, in the case of the V-shaped array groove, when the angle is 45 ° as in the prior art, the seed can easily escape from the feeding recess 3. In order to eliminate this problem, chamfering of 30 ° is adopted. That is, the angle of the front corner with respect to the radial direction with respect to the rotation direction of the seeding and feeding roll K is set to a chamfering angle of 30 ° or more. On the other hand, when the chamfer angle is 30 ° or less, the soot is difficult to enter the feeding recess 3.
　また、図１４に図示する如く、前記繰出凹部３は、スクリュー状の条溝の左右の端部においては、徐々に溝の深さを浅くして、左右の両端部においては、繰出凹部３が無くなるように穿設されている。本実施形態では、条溝が徐々に浅くなるように、曲率半径を７５ｍｍとしている。また、異物繰出フォークである溝掻出しフォーク２が嵌入する掻取り溝７が播種繰出ロールＫの外周の円周方向に穿設されている。つまり、掻取り溝７は繰出凹部３よりも深く、播種繰出ロールＫの外周で円周方向に穿設され、所定間隔をあけて複数列軸心方向に平行に配置される。 Further, as shown in FIG. 14, the feeding recess 3 is formed by gradually reducing the depth of the groove at the left and right ends of the screw-shaped groove, and the feeding recess 3 at the left and right ends. It is drilled so that it disappears. In this embodiment, the curvature radius is set to 75 mm so that the groove is gradually shallow. Further, a scraping groove 7 into which the groove scraping fork 2 which is a foreign matter feeding fork is inserted is formed in the circumferential direction of the outer periphery of the seeding feeding roll K. That is, the scraping groove 7 is deeper than the feeding recess 3, is formed in the circumferential direction on the outer periphery of the seeding feeding roll K, and is arranged in parallel with the plurality of rows in the axial direction with a predetermined interval.
　また、播種繰出ロールＫと回転ブラシ３３の中間位置に中間ゲート９が設けられている。本実施形態では、水平位置から角度５５°の位置に配置される。この中間ゲート９は、ゴム板またはブラシのような弾性材を、支持部材により支持して、播種繰出ロールＫに対して押し当てた構成としており、繰出凹部３内で重なった種籾を掃き落とすと同時に、種籾を一列に整列するように条溝内に押し込む役目を果たしている。前記中間ゲート９は、水平方向に取り付けられ、前記中間ゲート９の取付角度は、調整可能としている。 Further, an intermediate gate 9 is provided at an intermediate position between the sowing feeding roll K and the rotating brush 33. In this embodiment, it arrange | positions in the position of an angle 55 degrees from a horizontal position. The intermediate gate 9 is configured such that an elastic material such as a rubber plate or a brush is supported by a support member and pressed against the sowing and feeding roll K, and when the seeds overlapped in the feeding recess 3 are swept away. At the same time, it plays the role of pushing the seed pods into the grooves so as to align them. The intermediate gate 9 is attached in the horizontal direction, and the attachment angle of the intermediate gate 9 is adjustable.
　図１８においては、従来の播種繰出ロールＫ’と種籾の整列との関係を示している。図１８の（ａ）は、従来の横一直線型の繰出凹部３’を具備した播種繰出ロールＫ’において、種籾が繰出凹部３’に入った状態を示している。図１８の（ｂ）は、従来の横一直線型の繰出凹部３’において、種籾が繰出凹部３’内に重なりあった状態を示している。図１８の（ｃ）は、従来の横一直線型の繰出凹部３’において、育苗箱に播種された種籾の配置状態を示している。 FIG. 18 shows the relationship between the conventional sowing and unwinding roll K ′ and the soot alignment. FIG. 18 (a) shows a state in which the seed pod enters the feeding recess 3 'in the sowing and feeding roll K' having the conventional horizontal straight type feeding recess 3 '. FIG. 18B shows a state in which the soot seed overlaps with the feeding recess 3 ′ in the conventional horizontal straight type feeding recess 3 ′. (C) of FIG. 18 shows the arrangement state of the seed pods sown in the seedling box in the conventional horizontal straight type feeding recess 3 ′.
　このように、従来は、播種繰出ロール駆動軸１と平行に一直線状に構成された繰出凹部３’に、重なるように種籾が嵌入しており、これを掻取りブラシ３３で掻き取ると、重なりあった２粒が繰出凹部３’から抜け出るという不具合があった。
　また、従来の播種繰出ロール駆動軸１と平行に一直線状に構成された繰出凹部３’の場合には、内部に重なりあった種籾が多数入るので、播種ピッチＰを、１８ｍｍ以上とする必要があり、田植機におけるマット苗の縦送りと横送りの面積である、（１５．５×１６ｍｍ）のマス目の中に１粒の種籾も落下しないという不具合が発生していた。 As described above, conventionally, the soot seeds are fitted so as to overlap the feeding recess 3 ′ configured in a straight line in parallel with the seeding feeding roll drive shaft 1, and when the scraping brush 33 scrapes this, the overlap occurs. There was a problem in that the two existing grains slipped out of the feeding recess 3 ′.
In addition, in the case of the feeding recess 3 ′ configured in a straight line in parallel with the conventional sowing and feeding roll drive shaft 1, a large number of seed pods overlapped inside enter, so the sowing pitch P needs to be 18 mm or more. In addition, there was a problem that no seeds dropped in the square of (15.5 × 16 mm), which is the area of vertical feeding and horizontal feeding of mat seedlings in the rice transplanter.
　本発明においては、図１７に示す如く、改善されているのである。図１７の（ａ）は、Ｖ字型の繰出凹部３を具備した播種繰出ロールＫにおいて、種籾が整列した状態で繰出凹部３に入った状態を示している。図１７の（ｂ）は、Ｖ字型の繰出凹部３を具備した播種繰出ロールＫにおいて、育苗箱に播種された種籾の配置状態を示している。 The present invention is improved as shown in FIG. (A) of FIG. 17 has shown the state which entered into the feeding recessed part 3 in the state in which the seed potatoes were arranged in the seeding feeding roll K provided with the V-shaped feeding recessed part 3. FIG. (B) of FIG. 17 has shown the arrangement | positioning state of the seed pod | sown sowed by the seedling box in the sowing | feeding feeding roll K which comprised the V-shaped feeding recessed part 3. FIG.
　前記育苗用播種機Ｂの播種繰出ロールＫにおいて、円筒状の播種繰出ロールＫに穿設する繰出凹部３の条溝を、播種繰出ロールＫの外周を巻くようにスクリュー状に穿設し、該スクリュー状の条溝は、播種繰出ロールＫの左右の一端部から、播種繰出ロールＫの左右の幅の中心位置まで穿設し、左右の他端部からも、これと左右対称的に逆のスクリュー状に構成した反対側の条溝を中心位置まで穿設して、播種繰出ロールＫの１本の繰出凹部３の条溝をＶ字状の溝として複配列することにより、各条溝のＶ字型の繰出凹部３に種籾が１粒ずつ整列して嵌入する。
　これは、播種繰出ロールＫの回転により、Ｖ字型の繰出凹部３に沿って種籾が流れてゆき、その流れに沿うようにＶ字型の繰出凹部３が移動することによって、種籾が長手方向に整列する方向に動き、Ｖ字型の繰出凹部３の内部に順序よく嵌入するからである。
　故に、掻取りブラシ３３により掻き取る場合にも、重なりあった種籾は条溝に沿って移動して掻き出すことがなくなったのである。 In the sowing and feeding roll K of the seedling sowing machine B, the groove of the feeding recess 3 drilled in the cylindrical sowing and feeding roll K is drilled in a screw shape so as to wind the outer periphery of the sowing and feeding roll K, The screw-shaped grooves are drilled from the left and right end portions of the sowing and feeding roll K to the center position of the left and right widths of the sowing and feeding roll K, and are also symmetrically reversed from the left and right other end portions. By piercing the opposite groove formed in a screw shape to the center position, and arranging the grooves of one feeding recess 3 of the sowing feeding roll K as a V-shaped groove, Seeds are aligned and inserted into the V-shaped feeding recess 3 one by one.
This is because the seed pods flow along the V-shaped feeding recesses 3 by the rotation of the sowing feeding roll K, and the V-shaped feeding recesses 3 move along the flow, so that the seed potatoes are longitudinal. This is because it moves in the direction of aligning with each other and fits into the V-shaped feeding recess 3 in order.
Therefore, even when scraping with the scraping brush 33, the overlapped seed potatoes no longer move and scrape along the groove.
　このように、Ｖ字型の繰出凹部３として条溝角度αを播種繰出ロールＫの外周の母線の方向に対して２０～３５°としたことにより、播種ピッチＰを従来の１８ｍｍよりも狭い１５．９ｍｍとすることが可能であり、マット苗の縦送りと横送りの面積である、（１５．５×１６ｍｍ）のマス目の中に、最低２粒が落下するという結果を得ることができたのである。
　これによっても、種籾の少量散播が可能となり、少量散播の場合でも、田植機で植付ける場合において、欠株を無くすことができた。最適の条溝角度αとして２８°とする。 As described above, the groove angle α of the V-shaped feeding recess 3 is set to 20 to 35 ° with respect to the direction of the outer peripheral generatrix of the sowing feeding roll K, so that the sowing pitch P is narrower than the conventional 18 mm. It is possible to obtain a result that at least two grains fall in the square of (15.5 × 16 mm), which is the area of vertical feeding and horizontal feeding of the mat seedling. It was.
This also made it possible to disperse a small amount of seed pods, and even in the case of a small amount of seed sowing, it was possible to eliminate a stock loss when planting with a rice transplanter. The optimum groove angle α is set to 28 °.
　また、前記繰出凹部３が構成するＶ字型配列溝の方向は、播種繰出ロールＫの回転方向に対して、Ｖ字型配列溝のＶ字の先端が回転方向の前となるように構成したことにより、種籾がＶ字型の繰出凹部３に沿って、同調して流れて、長手方向に整列した状態となって、繰出凹部３内に落下させることが可能となった。 Moreover, the direction of the V-shaped arrangement | sequence groove | channel which the said delivery recessed part 3 comprises was comprised so that the front-end | tip of the V-shape of a V-shaped arrangement | positioning groove might be before the rotation direction with respect to the rotation direction of the seeding | feeding delivery roll K As a result, the seeds flow synchronously along the V-shaped feeding recess 3 and are aligned in the longitudinal direction, and can be dropped into the feeding recess 3.
　また、前記播種繰出ロールＫは、図１０、図１１に示すように、１本の円筒が左右に二分割された構造である。二分割されたそれぞれの円筒に繰出凹部３のスクリュー状の条溝が左右対称となるように加工して、左播種繰出ロールＫＬと右播種繰出ロールＫＲが構成され、その後、左播種繰出ロールＫＬと右播種繰出ロールＫＲとを嵌め合わせるなどして接着固定することで、１本の播種繰出ロールＫが構成され、繰出凹部３がＶ字状に形成される。よって、播種繰出ロールＫの繰出凹部３の加工がスクリュー状の条溝であるにも関わらず、高価な加工装置を用いることなく、コストのかからない加工により、播種繰出ロールＫの製造が可能となった。 Further, the seeding and feeding roll K has a structure in which one cylinder is divided into left and right parts as shown in FIGS. The left sowing feeding roll KL and the right sowing feeding roll KR are configured by processing the screw-shaped groove of the feeding recess 3 in the two divided cylinders so as to be bilaterally symmetric, and then the left sowing feeding roll KL. And the right sowing and feeding roll KR are fitted and fixed together to form one sowing and feeding roll K, and the feeding recess 3 is formed in a V shape. Therefore, although the processing of the feeding recess 3 of the sowing and feeding roll K is a screw-shaped groove, the sowing and feeding roll K can be manufactured by a cost-effective process without using an expensive processing device. It was.
　また、前記繰出凹部３のスクリュー状の条溝における播種繰出ロールＫの軸心に直交する方向の断面形状は、深さを平均種籾厚さの約１０％アップした深さとしたので、Ｖ字型配列溝のスクリュー状の条溝内に、種籾が１粒ずつ整列して嵌入する状態を維持することが可能となった。
　また、従来の播種繰出ロール駆動軸１に沿った一直線状の繰出凹部３の場合のように、２粒以上の種籾が重なった状態で嵌入することが無くなったのである。
　また、播種繰出ロールＫの回転方向に対して、繰出凹部３の前側の角部の角度は、３０°以上の面取り角度としたことにより、種籾が繰出凹部３に入りやすく、入った後は、簡単には掻き取られない繰出凹部３とすることができた。 Moreover, since the cross-sectional shape in the direction orthogonal to the axis of the seeding and feeding roll K in the screw-shaped groove of the feeding recess 3 is a depth that is about 10% higher than the average seed soot thickness, it is V-shaped. It became possible to maintain the state in which the seed pods were aligned and fitted one by one into the screw-shaped strips of the array grooves.
Further, as in the case of the straight feeding recess 3 along the conventional seeding and feeding roll drive shaft 1, two or more seed pods are not inserted in an overlapping state.
In addition, the angle of the front corner of the feeding recess 3 with respect to the rotation direction of the seeding feeding roll K is set to be a chamfering angle of 30 ° or more, so that the seeds can easily enter the feeding recess 3, and after entering, It was possible to obtain a feeding recess 3 that was not easily scraped off.
　また、前記播種繰出ロールＫの外周で、シャッター４０の底部を構成するシャッター底板４１と、播種繰出ロールＫの外周に接して回転する掻取りブラシ３３との間に、播種繰出ロールＫの軸心方向と平行する方向に中間ゲート９を配置し、該中間ゲート９を弾性材により構成し、重なった種籾を掃き落とすと同時に種籾を条溝内に押し込むように構成したので、Ｖ字型の繰出凹部３内に嵌入した種籾を必要以上に掻き取ることがなく、整列した状態で、播種繰出ロールＫの下部で落下させることが可能となった。 Further, on the outer periphery of the sowing and feeding roll K, the axis of the sowing and feeding roll K is disposed between the shutter bottom plate 41 constituting the bottom of the shutter 40 and the scraping brush 33 rotating in contact with the outer periphery of the sowing and feeding roll K. The intermediate gate 9 is arranged in a direction parallel to the direction, and the intermediate gate 9 is made of an elastic material so that the overlapped soot is swept away and at the same time the soot is pushed into the groove. It was possible to drop the seed pods fitted in the recesses 3 below the seeding feeding roll K in an aligned state without scraping off more than necessary.
　また、播種繰出ロールＫの外周に、繰出凹部３とは別に、外周に沿って、溝掻出しフォーク２のための掻取り溝７を穿設したことにより、繰出凹部３内に残って、播種繰出ロールＫの下部で落下しない種籾を溝掻出しフォーク２により強制的に落下させることができた。なお、播種繰出ロールＫの左播種繰出ロールＫＬと右播種繰出ロールＫＲの接続部分の掻取り溝７は、例えば、嵌め合わせたときに掻取り溝７が出来るように寸法を設定することによって形成されている。 In addition, the scraping groove 7 for the groove scraping fork 2 is formed along the outer periphery of the seeding feeding roll K along the outer periphery separately from the feeding concave portion 3, so that the seeding remaining in the feeding concave portion 3. Seeds that did not fall at the bottom of the feeding roll K could be forcibly dropped by the groove scraping fork 2. In addition, the scraping groove 7 of the connection part of the left sowing feeding roll KL and the right sowing feeding roll KR of the sowing feeding roll K is formed, for example, by setting the dimensions so that the scraping groove 7 can be formed when fitted. Has been.
　本発明は、土壌を敷き詰めた育苗箱の表面に種子を所定量均一に播種する播種機に利用可能である。 The present invention can be used for a seeding machine for uniformly seeding a predetermined amount of seeds on the surface of a seedling box laid with soil.
　Ａ　土入れ装置
　Ｂ　育苗用播種機
　Ｃ　覆土装置
　Ｄ　灌水装置
　Ｆ　育苗箱搬送方向
　Ｋ　播種繰出ロール
　ＫＬ　左播種繰出ロール
　ＫＲ　右播種繰出ロール
　Ｚ　嵌入可能粒数
　Ｐ　播種ピッチ
　Ｈ　駆動装置
　α　条溝角度
　Ｘ　条溝長さ
　１　播種繰出ロール駆動軸
　２　溝掻出しフォーク
　３　繰出凹部
　４Ｌ・４Ｒ　側板
　５　搬送ローラー
　６　掻取りブラシ駆動軸
　７　掻取り溝
　８　側面ガイド板
　９　中間ゲート
　１０　付勢バネ
　１１　ロール側板
　１８　ホッパー
　３３　掻取りブラシ
　３９　シャッター調節螺子
　４０　シャッター
　４１　シャッター底板 A Seeding device B Seedling machine for seedling C Covering device D Irrigation device F Feeding direction of seedling box K Seeding feeding roll KL Left sowing feeding roll KR Right sowing feeding roll Z Number of insertable grains P Seeding pitch H Drive device α Groove angle X Groove length 1 Seeding feeding roll drive shaft 2 Groove scraping fork 3 Feeding recess 4L / 4R Side plate 5 Transport roller 6 Scraping brush drive shaft 7 Scraping groove 8 Side guide plate 9 Intermediate gate 10 Biasing spring 11 Roll side plate 18 Hopper 33 Scraping brush 39 Shutter adjusting screw 40 Shutter 41 Shutter bottom plate

Claims (8)

  1. 　育苗用播種機の円筒状の播種繰出ロールおいて、
    　播種繰出ロールに穿設する繰出凹部の条溝を播種繰出ロールの外周を巻くようにスクリュー状に穿設し、
    　前記スクリュー状の条溝は、播種繰出ロールの左右の一端部から、播種繰出ロールの左右の幅の中心位置まで穿設し、
    　左右の他端部からも、これと対称的に逆のスクリュー状に構成した反対側の条溝を、左右の幅の中心位置まで穿設して、
    　播種繰出ロール外周に穿設される繰出凹部の各条溝をＶ字状の溝として配列した
    　ことを特徴とする育苗用播種機の播種繰出ロール。     In the cylindrical seeding feeding roll of the seedling sowing machine,
    Drilling the groove of the feeding recess to be drilled in the sowing feeding roll into a screw shape so as to wind the outer periphery of the sowing feeding roll,
    The screw-shaped groove is drilled from the left and right end portions of the sowing feed roll to the center position of the left and right widths of the sowing feed roll,
    From the other ends of the left and right sides, the opposite groove formed in the opposite screw shape symmetrically is drilled to the center position of the left and right widths,
    A seeding and feeding roll for a seedling sowing machine, characterized in that the grooves of the feeding recesses drilled on the outer periphery of the sowing and feeding roll are arranged as V-shaped grooves.
  2. 　請求項１記載の育苗用播種機の播種繰出ロールにおいて、
    　前記繰出凹部が構成するＶ字型配列溝の方向は、播種繰出ロールの回転方向に対して、Ｖ字型配列溝のＶ字の先端が回転方向の前方となるよう構成した
    　ことを特徴とする育苗用播種機の播種繰出ロール。     In the sowing feed roll of the seedling sowing machine according to claim 1,
    The direction of the V-shaped arrangement groove formed by the feeding recess is configured such that the V-shaped tip of the V-shaped arrangement groove is forward in the rotation direction with respect to the rotation direction of the seeding feeding roll. Seeding feed roll of seedling seeder.
  3. 　請求項１記載の育苗用播種機の播種繰出ロールにおいて、
    　前記播種繰出ロールは、１本の円筒を左右に二分割し、それぞれ左右対称となるように、繰出凹部のスクリュー状の条溝を加工した構成とし、その後に左右の円筒を接着固定することで、１本の播種繰出ロールを構成し、繰出凹部をＶ字型配列溝に形成した
    　ことを特徴とする育苗用播種機の播種繰出ロール。     In the sowing feed roll of the seedling sowing machine according to claim 1,
    The seeding and feeding roll has a configuration in which one cylinder is divided into two left and right, and the screw-shaped groove of the feeding recess is processed so as to be symmetrical to each other, and then the left and right cylinders are bonded and fixed. A seeding and feeding roll of a seedling sowing machine, wherein one seeding and feeding roll is configured, and a feeding recess is formed in a V-shaped array groove.
  4. 　請求項１記載の育苗用播種機の播種繰出ロールにおいて、
    　前記繰出凹部を構成するスクリュー状の条溝における播種繰出ロールの外周の母線の方向に対して傾斜する条溝角度は、２０～３５°とした
    　ことを特徴とする育苗用播種機の播種繰出ロール。     In the sowing feed roll of the seedling sowing machine according to claim 1,
    The seeding feed roll of the sowing machine for seedling raising, characterized in that the angle of the groove inclined with respect to the direction of the generatrix of the outer periphery of the sowing feed roll in the screw-like groove forming the feeding recess is 20 to 35 ° .
  5. 　請求項１記載の育苗用播種機の播種繰出ロールにおいて、
    　前記繰出凹部のスクリュー状の条溝における播種繰出ロールの軸心に直交する方向の断面形状は、深さを平均種籾厚さの約１０％アップした深さとし、
    　播種繰出ロールの回転方向に対して、繰出凹部の前側の角部の角度は、３０°以上の面取り角度とした
    　ことを特徴とする育苗用播種機の播種繰出ロール。     In the sowing feed roll of the seedling sowing machine according to claim 1,
    The cross-sectional shape in the direction perpendicular to the axis of the seeding and feeding roll in the screw-like groove of the feeding recess is a depth obtained by increasing the depth by about 10% of the average seedling thickness,
    The sowing roll of the sowing machine for seedling raising, wherein the angle of the front corner of the feeding recess is a chamfering angle of 30 ° or more with respect to the rotation direction of the sowing feeding roll.
  6. 　請求項１記載の育苗用播種機の播種繰出ロールにおいて、
    　播種繰出ロールの外周には、溝掻出しフォークが嵌入する掻取り溝を播種繰出ロールの外周の円周方向に穿設する
    　ことを特徴とする育苗用播種機の播種繰出ロール。     In the sowing feed roll of the seedling sowing machine according to claim 1,
    A seeding feed roll for a seedling sowing machine, characterized in that, on the outer periphery of the sowing feed roll, a scraping groove into which a groove scraping fork is fitted is formed in the circumferential direction of the outer periphery of the sowing feed roll.
  7. 　請求項１記載の育苗用播種機の播種繰出ロールにおいて、
    　前記播種繰出ロールの外周で、シャッターの底部を構成するシャッター底板と、播種繰出ロールの外周に接して回転する掻取りブラシとの間に、播種繰出ロールの軸心方向と平行する方向に中間ゲートを配置し、
    　前記中間ゲートは、弾性材により構成し、重なった種籾を掃き落とすと同時に種籾を条溝内に押し込む構成とした
    　ことを特徴とする育苗用播種機の播種繰出ロール。     In the sowing feed roll of the seedling sowing machine according to claim 1,
    An intermediate gate in a direction parallel to the axial direction of the seeding and feeding roll between the shutter bottom plate constituting the bottom of the shutter and the scraping brush rotating in contact with the outer periphery of the seeding and feeding roll on the outer periphery of the seeding and feeding roll. And place
    The intermediate gate is made of an elastic material, and is configured to sweep away the overlapped seed pods and simultaneously push the seed pods into the groove.
  8. 　請求項１記載の育苗用播種機の播種繰出ロールにおいて、
    　前記播種繰出ロールの外周における繰出凹部のスクリュー状の条溝の数は、４０～７０本とした
    　ことを特徴とする育苗用播種機の播種繰出ロール。     In the sowing feed roll of the seedling sowing machine according to claim 1,
    A seeding and feeding roll of a seedling sowing machine characterized in that the number of screw-shaped strips of feeding recesses on the outer periphery of the seeding and feeding roll is 40 to 70.
PCT/JP2016/078824 2016-09-05 2016-09-29 Seed feeding roll for seeding machine for seedling culture WO2018042678A1 (en)

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CN201680088836.9A CN109640617B (en) 2016-09-05 2016-09-29 Seeding delivery roller of seeding machine for seedling culture
KR1020197007774A KR102279653B1 (en) 2016-09-05 2016-09-29 Seeding discharge roll of seeding machine for seedling

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JP2016-173068 2016-09-05
JP2016173068 2016-09-05
JP2016-186286 2016-09-23
JP2016186286A JP6755581B2 (en) 2016-09-05 2016-09-23 Seeding delivery roll of seedling seedling machine

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JPS62119711U (en) * 1986-01-22 1987-07-29
JPS62153804U (en) * 1986-03-19 1987-09-30
JPS63313506A (en) * 1987-06-17 1988-12-21 Iseki & Co Ltd Seeder
JPH08154429A (en) * 1994-12-07 1996-06-18 Seirei Ind Co Ltd Supplying roll for seeding device
JP2010119372A (en) * 2008-11-21 2010-06-03 Suzutec Co Ltd Apparatus for transporting feeder for seedling raising container and sowing apparatus for seedling raising container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114531997A (en) * 2022-01-24 2022-05-27 淮安汉德农业科技有限公司 Printing seeder suitable for multiple seedling raising substrates

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