JP2015159797A - Nursery cabinet, method for installing the same, and pressing plate thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nursery cabinet to satisfactorily raise seedlings on a positioned floor by properly pressing the nursery cabinet along with preventing the deformation or damage of the nursery cabinet, when the nursery cabinet in which a plurality of cells are arranged longitudinally and laterally is pressed.SOLUTION: A nursery cabinet is configured in such a manner that a plurality of cells 121 are arranged longitudinally and laterally; the upper edge of an outer peripheral part 122 of the nursery cabinet is provided at a position higher than the upper edges of the cells 121; and a space part 123 is communicated with each cell 121 above a plurality of the cells 121. In a method for installing the nursery cabinet, soil is filled and seeds are sowed in the cells 121 of the nursery cabinet 120, covering soil is supplied in the space part 123, and the nursery cabinet 120 supplied with the covering soil is installed by being pressed on the positioned floor. A pressing plate of the nursery cabinet is provided with a lower insertion part to be inserted to the space part 123 of the nursery cabinet 120 and an outer peripheral contact part to be in contact with the outer peripheral part 122 of the nursery cabinet 120 at a position higher than the lower insertion part.

Description

  The present invention belongs to the technical field of a seedling device, a method for laying the seedling device, and a pressing plate for the seedling device.

  There are a seedling box arranging machine and a seedling box laying method in which seedling boxes as seedling raising devices are arranged on a placement floor, and the seedling boxes arranged on the placement floor are pressed from above by a tread plate as a pressing plate to be brought into close contact with the placement floor. The pressing surface of the tread plate serving as the pressing plate is planar (see Patent Document 1). In addition, there is a seedling box pressing machine that places a pressing plate on a seedling box arranged on the floor and applies a pressing force to the seedling box by its own weight of a laterally moving body that moves laterally above the pressing plate. The pressing surface of the pressing plate is planar (see FIGS. 1 to 5 of Patent Document 2). Moreover, there is a seedling box pressing machine that presses the seedling box with a pressing roller that rolls on the seedling boxes arranged on the floor (see FIGS. 16 to 20 of Patent Document 2).

Japanese Patent Laid-Open No. 10-191794 JP 2002-136225 A

When pressing the seedling devices arranged on the floor from above, it is considered that if the strength of the seedling device is low, the seedling device is deformed or damaged, and good seedling cannot be performed on the floor.
This invention makes it a subject to prevent the deformation | transformation and damage of a seedling device, when pressing a seedling device which arranged the some cell vertically and horizontally, and to press appropriately, and to perform a good seedling on a flooring by extension.

In order to solve the above problems, the following technical measures were taken.
That is, the invention according to claim 1 is the seedling device in which a plurality of cells (121) are arranged vertically and horizontally, with the upper end of the outer peripheral edge (122) of the seedling device being higher than the upper end of the cell (121). It was set as the seedling raising machine which comprised the space part (123) connected to each cell (121) above (121).

  Moreover, the invention which concerns on Claim 2 performs soil filling and seeding | inoculation in the cell (121) of the seedling raising device (120) of Claim 1, supplies covering soil to the said space part (123), and supplies covering soil It was set as the laying method of the seedling device which presses and lays the grown seedling device (120) on the placing floor.

  Moreover, the invention which concerns on Claim 3 has a lower insertion part (124a) which enters the said space part (123) of the seedling raising device (120) of Claim 1, and a seedling raising device at a higher level than the lower insertion part (124a) It was set as the press plate of the seedling raising device provided with the outer periphery contact part (124b) which contacts the said outer periphery part (122) of (120).

  According to the invention which concerns on Claim 1 or Claim 2, if this seedling device (120) is pressed from the top in the state which supplied the covering soil to the space part (123) of the seedling device (120), space part (123) The seedling container (120) can be prevented from being deformed by the covering soil stuffed in the container, and the seedling container (120) can be laid on the floor to perform good seedling raising.

  According to the invention which concerns on Claim 3, since a seedling raising device (120) can be pressed accurately by a lower insertion part (124a) and an outer periphery contact part (124b), it prevents deformation of a seedling raising device (120). It is possible to perform good seedling raising by laying the seedling device (120) on the floor.

Top view showing the seeder Side view showing the seeder The top view which shows the principal part of a seedling box supply device Side view showing essential parts of seedling box feeder A perspective view showing a lower receiving plate, an upper receiving plate and a dropping plate Sectional drawing which shows the press state of the seedling tray of a 1st example Sectional drawing which shows the press condition of the seedling tray of a 2nd example

One embodiment of the present invention will be described below. The following embodiment is merely an embodiment and does not restrict the scope of the claims.
As a seedling raising method, a rectangular general rice seedling box (internal dimensions: 580 mm in length, 280 mm in width) (2) is used, and the seedling box having the silicic acid component in this seedling box (2) is used as a floor soil. Packed with a thickness of ˜18 mm, seeding 180 g or more of seed pods per box and covering to the upper end of the seedling box (2). The floor soil filling, sowing and covering work may be performed by a seeder (1) described later, but may be performed manually. The soil to be the floor soil is produced by adding 1 to 5% by weight of potassium silicate to the fine soil whose pH is adjusted to 3.5 to 4.0, and the pH value is 4.0 to 4.0. It suppresses the rise to about 5.5, and the root elongation is vigorous with potassium silicate. Moreover, the cultivation soil used as floor soil is restrained in the nitrogen component amount to 0.25 g / kg or less. In addition, as the soil to be used as a floor soil of another example, a peat moss having a pH value of unadjusted and low pH is adjusted to 10 to 50% in a fine soil whose pH value is adjusted to 4.0 to 4.5 with sulfuric acid or dilute sulfuric acid. There is a soil that is manufactured by adding and having an electrical conductivity (EC value) of 1.2 or less. In addition, instead of adding peat moss, sulfur white may be added to lower the electrical conductivity (EC value). Note that the electrical conductivity (EC value) gradually increases as the seedlings are grown.

  Moreover, the cultivation soil used as covering soil has a granular fertilizer in which the nitrogen component amount is 0.25 g / kg or more, the fertilizer content is 0.4 g / kg or more, and a part of the fertilizer is coated. In addition, it is desirable that the granular fertilizer to which the coating is applied is only a part of the fertilizer exceeding the fertilizer content of 0.4 g / kg. In addition, the soil to be covered with soil is preferably a soil having a temporary specific gravity of 1.1 or less, such as homemade mountain soil, or a soil having a particle size of 1 mm or less and 30% or less in order to prevent germination delay due to oxygen deficiency of seeds. . This soil may be used for floor soil.

  Then, the seedling box (2) sowed and covered with soil is nurtured for 7 to 10 days in an environment-controlled nursery room to obtain a milk seedling. It should be noted that if the seedling period is long despite the dense seeding, the quality of the seedling may be lowered. Therefore, it is desirable that the seedling period is relatively short. In addition, since it has a silicic acid component in the floor soil, the amount of rooting can be increased, the strength of the floor portion of the mat seedling can be obtained even if the seedling raising period is short, and it corresponds to the seedling height. The dry matter weight can be increased, and the degree of seedling improvement is improved.

  In addition, if the seedling period is set to 11-18 days, the seedling height will be about 10-12 cm, and seedlings in the middle of dairy seedlings and young seedlings can be nurtured, and transplantation adaptation at a seedling height suitable for transplanting with a transplanting machine In addition to improving the properties, it is possible to obtain the strength of the floor portion of the mat seedling by rooting.

  Moreover, you may raise a seedling not only in a seedling room but outdoors, such as a farm field. Moreover, you may perform the pool seedling which puts a seedling box (2) in the pool in which water was stored, and makes a bottom watering. In pool seedlings, rooting can be promoted and the strength of the mat seedling floor can be obtained.

Further, if a light soil containing 50% or more of peat moss or coconut shell is used as the floor soil, the rooting can be promoted.
Nursery box (2) When sowing a large amount of seed pods of 180 g or more per box, the seed pods may overlap each other. Therefore, if the seed pods are sowed in the seedling box (2) so that the longitudinal direction (long diameter part) of the seed pods is directed to the longitudinal direction of the seedling box (2), seedlings can be efficiently raised so that the seed pods do not overlap vertically. The seedling can be laid and spread over almost the entire surface of the box (2), the density of dense seeding can be increased, and germination failure can be prevented and good breeding can be performed. And it is desirable to lightly press the seed pod against the floor soil immediately after sowing before covering so as to prevent the seed pod sowing from rolling on the seedling box (2) and changing the direction of the seed pod. As a result, the seed pod is slightly buried in the floor soil, and the seed pod is prevented from rolling on the seedling box (2). In addition, what is necessary is just to press a seed pod, rolling a pressing roller on the nursery box (2). Furthermore, if the covering soil is granular cultivated soil, it is possible to prevent the seed sow from moving, and water permeability in irrigation after covering is good. In addition, if a light soil having a temporary specific gravity of 0.8 or less is used as the floor soil, the seed potatoes are less likely to bounce on the floor soil at the time of sowing, and the orientation of the seed pods is prevented from changing.

  By the way, a seedling receiving frame that receives the end of the mat-like seedling on the seedling mounting base is provided, a seedling receiving opening is provided in the seedling receiving frame, and a left and right moving device that moves the seedling mounting base left and right along the seedling receiving frame is provided. When the stand reaches the left and right moving end, a seedling transfer device is provided to transfer the mat-like seedlings on the seedling mounting platform to the seedling receiving frame side. In the transplanting machine (rice transplanter), which is configured to supply each seedling, and has a seedling planting device that takes seedlings one by one from the seedling outlet and places them on the field, the amount of seedling transfer device per transfer Is set to 6 to 8.5 mm, and if the number of transfers (B) for transferring seedlings with the full length of the seedlings of the seedling transfer device is secured 66 times or more, the number of seedlings required for transplanting to the field is reduced by 40% or more. be able to. Specifically, about 6 seedlings can be transplanted per 1 field (10 are). It should be noted that, by operating the seedling amount adjustment lever in the transplanter, the vertical position of the seedling receiving frame is adjusted to change the amount of seedling (seeding amount) taken by the seedling planting device. It is desirable that the connection between the harvesting adjustment lever and the seedling receiving frame is switched and a small seedling harvesting amount can be appropriately adjusted by the seedling harvesting adjustment lever. In addition, it is desirable that the size in the front-rear direction of the seedling outlet is changed using a slide plate or the like that automatically slides back and forth in conjunction with the operation of the seedling collection amount adjusting lever. It is desirable to set the size of the seedling outlet in the front-rear direction to be as small as about 8 to 10 mm corresponding to the transfer amount of the seedling transfer device.

  Moreover, it is desirable that the number of movements (A) in which one seedling is supplied in the full width of the mat-like seedling by the left / right moving device is 24 to 28 times. In addition, the number of seedlings will be 3-5 for one strain by setting the number of times of movement (A) and the number of times of transfer (B). Alternatively, the seeding amount may be set to 220 g per seedling box (2), the seedling period may be set to 20 to 25 days, and the seedlings may be grown and transplanted to a field.

  Next, a sowing amount display device that calculates and displays the weight (X) of seed pods necessary for one seedling box (2) will be described. This seeding amount display device includes the number of transfers (A), the number of transfers (B), the desired number of seedlings per strain (C), and the weight per unit grain number (1000 grains) of seed pods (e). Is input. The total number of seedlings required per seedling is obtained by a value (A × B × C) obtained by multiplying the number of movements (A), the number of transfers (B), and the number of seedlings (C). However, since some of the sowed seed pods do not germinate or may germinate even if they germinate, the seedling establishment rate (d), which is the ratio at which seedlings grown from the sowed seed pods, are obtained in advance. A value (A × B × C ÷ d) obtained by dividing the value multiplied by the seedling establishment rate (d) is set as the total number of necessary seedlings (M). In place of the number of transfers (B), the transfer amount (b) of the seedling transfer device is input, and the transfer number (B) is calculated from the value obtained by dividing the total length (580 mm) of the seedling in the longitudinal direction by the transfer amount (b). It is good also as a structure to obtain. In this case, the calculation may be performed based on the transfer amount (b−b ′) obtained by subtracting the correction value (b ′) in consideration of the slip of the seedling transfer belt of the seedling transfer device.

  In addition, the seed pods to be seeded are subjected to sprouting treatment and absorb water to increase the weight. Therefore, when the seed sprouting, the seed pods absorb water to increase the weight and increase the weight ratio (f). Set in advance. Then, the value obtained by multiplying the total number of seedlings (M) by the weight (e) per unit number of seed grains (1000 grains) and the increased weight ratio (f), and dividing the number of unit grains (1000 grains) ( M × e × f ÷ 1000) is defined as the weight (X) of the seed pod necessary per box of the seedling box (2).

  Summarizing the above calculation into an arithmetic expression, X = (A × B × C × e × f) / (d × 1000). Specifically, the number of movements (A) = 28, the number of transfers (B) = 64.4, the number of seedlings (C) = 3.5, the seedling establishment rate (d) = 0.95, and the weight (e). = 30 g, weight increase rate (f) = 1.25 When the seedling weight (seeding amount) (X) necessary per seedling box (2) is (28 × 64.4 × 3. 5 × 30 × 1.25) / (0.95 × 1000) = about 249 g.

  This seeding amount display device is a portable type, and the number of movements (A), the number of transfer times (B), the number of desired seedlings per strain (C), and seed pods by the input switch of the seeding amount display device Just input the weight (e) per unit grain number (1000 grains), the controller of the sowing amount display device calculates, and the display screen shows the weight of sowing seeds required per seedling box (2) (seeding) (Amount) (X) is displayed. As a result, the operator can easily recognize the optimum seeding amount, prevent the seeding amount from growing due to insufficient seeding, and prevent seedlings from being improperly seeded by excessive dense seeding. So that the sowing accuracy can be improved. The seeding amount display device can be mounted on a seeder (1), which will be described later, or on a transplanter, in addition to being portable.

  In addition, when raising the seeding density and raising densely planted mat seedlings and reducing the number of planting per plant with a rice transplanter (transplanter), buds and roots are slightly stretched and breast seeds are grown. Although the sowing is performed, a seed pod pretreatment apparatus that performs root cutting and bud cutting of the seed pod before sowing may be configured. As a result, the pupae length is suppressed by the factor of hormone (ethylene), and healthy seedlings are obtained. In the case of sowing when raising a seedling, the same effect can be obtained by root cutting and bud cutting of the seed pod before sowing. The length of the seed buds at the time of sowing is preferably in the range of 5 to 15 mm.

  This seed vase pre-treatment device conveys the seed vase that is put together with water from the upper supply port to the lower part, and conveys the seed vase sent by the elevating conveyor belt while performing root cutting and bud cutting with a plurality of rotating disks And a dehydrating unit for dewatering the seeds sent from the processing cylinder. Since the seed pods are transported with water, the seed pods can be transported smoothly, the seed pods are prevented from being damaged, and the stickiness of the roots and buds can be removed. In addition, the dehydration section can shorten the drying time of the seed meal and improve the work efficiency. A drain outlet is provided near the lower end of the dewatering unit or processing cylinder on the lower conveyance side. The drive motor for the elevating conveyor belt is arranged on the upper side of the elevating conveyor belt near the supply port, and the drive motor for the process cylinder is arranged on the upper side of the process cylinder so that water is not applied to each drive motor. In addition, it is desirable to provide a storage unit that temporarily stores seed soot between the processing cylinder and the dewatering unit so that continuous operation is possible.

  As a different soy seed pretreatment device, the seeds can be fed while being rubbed against each other by a feeding device such as a hard brush or a friction plate from a tank in which a large number of soy seeds are stored, and the buds and roots can be damaged. The seed pod pretreatment device is provided above the seed tank (68) so that the seed pod fed out from this seed pod pretreatment device is supplied to the seed tank (68) of the seeding device (7) of the seeding machine (1) described later. Can be configured.

  Next, a seeding machine (1) that performs flooring, seeding, and covering work will be described. The seeder (1) includes a transport path (3) for transporting the seedling box (2) in one direction, and is supported on the transport path (3) and along the transport path (3). ) In order from the upper side, the seedling box supply device (4) for feeding the seedling boxes (2) stacked in a plurality of layers up and down in order from the lower side and feeding them onto the transport path (3), and the seedling box (2) A floor soil filling device (6) for stuffing floor soil, an irrigation device (29) for irrigating a seedling box (2) stuffed with floor soil, a seeding device (7) for seeding the seedling box (2), and seedling raising A covering device (8) for covering the box (2) is provided. Each of the seedling box supply device (4), the floor soil filling device (6), the seeding device (7), and the soil covering device (8) can be installed independently, independently of the other devices. It is supported by a total of four legs (9, 10). The left and right leg portions (10) on the front side of the soil covering device (8) can be protruded downward from the lower ends of the leg portions (10) via the arms (11) that rotate vertically. ) Are attached, and the seeding machine (1) is easily moved by lifting the seeding machine (1) by lifting the wheel (12) downward and lifting the other leg (9) from the ground. Can do.

  A conveyance path | route (3) is comprised by the left-right conveyance guide (15), and becomes a structure which conveys the seedling box (2) which orient | assigned the longitudinal direction back and forth between this left-right conveyance guide (15). In the conveyance path (3), as a conveyor to be driven, a seedling box supply conveyor (16) and a floor soiling section conveyance conveyor (17) which are belt type seedling box conveyance conveyors, and a roller type seedling box conveyance conveyor The seeding part conveyance conveyor (18) and the soil covering part conveyance conveyor (28) which are these are provided. Then, as a roller-type conveyor that is driven and rotated freely, a pre-flooring conveyor (62) is provided between the nursery box supply unit transporting conveyor (16) and the floor soiling unit transporting conveyor (17). An irrigation section conveyor (63) is provided between the filling section transport conveyor (17) and the sowing section transport conveyor (18), and the pre-soil covering conveyor (64) is provided between the sowing section transport conveyor (18) and the soil covering section transport conveyor (28). ) And a seedling box take-out conveyor (75) is provided on the rear side of the soil covering section conveyor (28).

  The seedling box supply device (4) includes a receiving plate (34) for receiving a group of seedling boxes stacked from above and below from the lower side and a second seedling box (2) from the bottom of the seedling box group. An upper receiving plate (35) received from the lower side and a dropping plate (36) for forcibly dropping the lowest raising seedling box (2) of the nursery box group on the upper receiving plate (35) manually. The seedling box group supplied to the first is handed over to the lower receiving plate (34), and the upper receiving plate (35) is moved from the second seedling box (2) to the upper nursery box (2) from the lower seedling box group. In the supported state, the support of the lowermost seedling box (2) of the seedling box group by the lower receiving plate (34) is released, and in this state, the dropping board (36) lowers the lowermost seedling box (2) from above The seedling box is separated from the group of seedling boxes, dropped and fed out and fed onto the seedling box supply section conveyor (16). It has become lower nursery box the nursery box group from (2) and supplies constructed on nursery box supplying unit conveyor (16) in order by. The lower receiving plate (34), the upper receiving plate (35), and the drop plate (36) are arranged at four positions on the front, rear, left and right sides of the seedling box group so that the respective parts acting on the seedling box group do not overlap in the front-rear direction. The seedling box (2) previously provided on the nursery box supply unit transport conveyor (16), which is provided and operates from the left and right outer sides of the seedling box group, is linked to the operation of the nursery box supply unit transport conveyor (16), and the next It operates so that there is no gap between it and the seedling box (2) to be fed. The transmission structure will be described. Power is transmitted from the output sprocket (95) provided in the seedling box supply motor (94) to the transport transmission chain (96) and the drive sprocket (38), and the transport sprocket is rotated integrally with the drive sprocket (38). The nursery box supply unit transport conveyor (16) is driven via the roller (37) on the side. Then, the drive sprocket (42) is transmitted from the drive sprocket (38) to the first counter shaft (41) through the chain (39) and the driven sprocket (40) and rotates integrally with the first counter shaft (41). ) From the chain (43), the driven sprocket (44) and the one-way clutch to the second countershaft (45), and drive bevel gears provided on the left and right ends of the second countershaft (45) ( 46), the left and right dropping shafts (48) are driven to rotate opposite to each other via the driven bevel gear (47). The dropping shaft (48) and the dropping plate (36) rotate as a unit, and the dropping plate (36) rotates in the direction of moving downward on the left and right inner sides. Further, each receiving plate shaft (52) positioned above the dropping shaft (48) from the other end of the dropping shaft (48) via the arm (49, 51), the link (50) and the like is predetermined. The lower receiving plate (34) and the upper receiving plate (35) that are swung within the angular range and rotate integrally with the receiving plate shaft (52) are swung, and the lower receiving plate (34) and the upper receiving plate (35) are swung. ) Are alternately applied to the seedling box group, and the seedling box group is sequentially lowered. Further, a manual supply lever (53) serving as a manual supply operation tool for manually rotating the second counter shaft (45) is provided, and the manual supply lever (53) allows the operator to arbitrarily supply the seedling box. The nursery box (2) can be dropped and supplied onto the partial transport conveyor (16).

  The floor soil filling device (6) feeds a predetermined amount of the floor soil tank (54) for storing the soil to be used as the floor soil, and drops it into the nursery box (2). Floor soil feeding belt (55) serving as a floor soil feeding tool to be supplied, a leveling brush (19) serving as a leveling tool for leveling floor soil overflowing on the nursery box (2), and a seedling box (2) The floor soil pressure roller (57), which is a floor soil pressure reducing tool that rushes into the floor and compresses the floor soil, and the amount of floor soil that changes and adjusts the amount of floor soil delivered by adjusting the clearance on the floor soil delivery belt (55) A leveling brush (19) is provided on the lower conveyance side of the floor soiling position on the conveyance path (3) on which the floor soil supply belt (55) supplies the floor soil. The floor soil pressure reducing roller (57) is positioned on the lower conveyance side of the leveling brush (19). The transmission structure of the floor soil filling device (6) will be described. The floor soil feeding belt (55) is driven by the floor soil feeding motor (20), and the floor soil feeding belt (55) is leveled through a gear transmission mechanism. The brush (19) is driven. In addition, the lower side of the transport that is transmitted from the output sprocket (97) provided in the floor soil transport motor (21) to the drive sprocket (60) via the transport transmission chain (59) and rotates integrally with the drive sprocket (60). The floor soiling section conveyor (17) is driven by the roller (61). The leveling brush (19) and the floor soil feeding belt (55) rotate in opposite directions. In addition, it is transmitted to a floor soil feeding belt (55), a leveling brush (19), and a floor soiling portion transport conveyor (17) by driving one of the floor soil feeding motor (20) or the floor soil transporting motor (21). It is good also as composition to do.

  The seeding device (7) has a seed tank (68) for storing seeds to be seeded (seed seeds), and intermittently feeds the seeds in the seed tank (68) by a predetermined amount and drops them into the seedling box (2). A seed feeding roller (69) serving as a seed feeding tool having a plurality of feeding grooves at a predetermined pitch on the outer periphery supplied at the sowing position, and the seed feeding roller (69 in contact with the outer peripheral surface of the seed feeding roller (69) ) Of the removal brush (70) for removing unsuitable seeds from the feeding groove and the supply of seeds to the seed feeding roller (69) by adjusting the clearance between the outlet of the seed tank (68) facing the seed feeding roller (69) A seed supply adjustment handle (72) serving as a seed supply adjustment tool for changing and adjusting the state is provided. Therefore, seeds are supplied from the outlet of the seed tank (68) adjusted by the seed supply adjusting handle (72) to the feeding groove of the seed feeding roller (69), and the feeding groove is turned by rotation of the seed feeding roller (69). By moving upward, a predetermined amount of seed is transferred in the feeding groove, and seeds unsuitable for sowing such as seeds with pods, branch stems or seeds with excessive buds are removed from the feeding groove, and the feeding groove Is moved downward by the rotation of the seed feeding roller (69), and drops seeds to the seedling box (2) at the bottom dead center position (seeding position (H)). A guide plate is provided between the removal brush (70) and the sowing position (H) on the outer periphery of the seed feeding roller (69) so as to prevent the seed from dropping from the feeding groove.

  In general, a plurality of feeding grooves of the seed feeding roller (69) are arranged on the outer periphery of the seed feeding roller (69) with a long groove in the left-right direction (the direction of the rotation axis of the seed feeding roller (69)). It has become. When seeding the seedling box (2) with the orientation of the seed pod aligned so that the longitudinal direction (long diameter part) of the seed pod is directed to the longitudinal direction of the seedling box (2), the feeding groove of the seed feeding roller (69) If the configuration is such that a plurality of grooves are arranged on the left and right with long grooves in the direction (the direction of rotation of the seed feeding roller (69)), the longitudinal direction (longer diameter portion) of the seed potato is along the direction of the feeding groove (front-rear direction) and the desired direction You can sow seed pods.

In addition, when the seed potato is lightly pressed against the soil immediately after sowing, a pressing roller may be provided immediately after the sowing position (H), and the seed potato may be pressed by the pressing roller.
The transmission configuration of the seeding device (7) will be described. The output sprocket (66) provided in the seeding motor (65) is transmitted to the seed feeding roller (69) through the feeding transmission chain (67), and the output sprocket (66) ) To the removal brush (70) via the first removal chain (73) and the second removal chain (74), and from the output sprocket (66) to the seeding part conveyance conveyor (71) via the conveyance transmission chain (71). 18) is transmitted to the roller (75) on the lower conveyance side, and is transmitted from the roller (75) on the lower conveyance side to the roller (76) on the upper conveyance side via the chain (77). There is a seeding position (H) between the roller (76) on the upper conveyance side and the roller (75) on the lower conveyance side, where the seed feeding roller (69) feeds and supplies seeds. In addition, the first removal chain (73) and the conveyance transmission chain (71) are viewed in a side view so that the removal brush (70) and the sowing part conveyance conveyor (18) and the seed feeding roller (69) rotate in opposite directions. It is wrapped around to intersect. A guide body that covers the feeding groove is provided between the position of the removal brush (70) and the sowing position on the outer periphery of the seed feeding roller (69) so that the seed does not fall off from the feeding groove.

  The soil covering device (8) feeds the soil covering in the soil covering tank (84) for storing the soil to be covered with soil and the soil covering in the soil covering tank (84) by a predetermined amount to the seedling box (2) and supplies it at the soil covering position. Adjusting the gap on the soil covering feeding belt (85), the leveling plate (86) serving as a leveling device for leveling the soil covering overflowing on the nursery box (2), and the clearance on the soil covering feeding belt (85) A soil covering amount adjusting lever that serves as a soil covering amount adjusting tool for changing and adjusting the amount of covering soil, and a leveling plate (8) on the transport lower side of the soil covering position on the transport path (3) on which the soil covering belt (85) supplies the soil covering. 86) is located. The transmission configuration of the soil covering device (8) will be described. The soil covering belt (85) is driven by the soil covering motor (78), and the output sprocket (79) provided on the soil covering motor (78) is passed through the transport transmission chain (80). Then, it is transmitted to the roller (81) on the lower conveyance side of the soil covering section conveyance conveyor (28), and is transmitted from the roller (81) on the lower conveyance side to the roller (82) on the upper conveyance side through the chain (98). There is a soil covering position between the roller (82) on the upper conveyance side and the roller (81) on the lower conveyance side. In addition, the conveyance transmission chain (80) is wound so that it may cross | intersect in a side view so that a covering soil supply belt (85) and a covering soil conveyance conveyor (28) may rotate in a mutually reverse direction.

  On the front leg (10) of the soil covering device (8), a manual transfer handle (92) serving as an operation tool for manually rotating the nursery box transfer conveyor is held via a hook (93). With this manual transfer handle (92), the seeder (1) was stopped when the seeder (1) stopped due to a failure during the sowing with the seeder (7) or to end the seeding operation. At this time, the nursery box (2) can be manually conveyed and the nursery box (2) can be easily taken out from the seeder (1).

  The irrigation device (29) is provided on the upper side of the irrigation unit conveyor (63), and is provided with left and right support frames (100) respectively rising from the left and right conveyance guides (15) of the irrigation unit conveyor (63), and is arranged on the left and right. The left and right irrigation pipes (99) having a plurality of nozzles are both supported by the left and right support frames (100). The irrigation pipe (99), that is, the irrigation position, is arranged at a position closer to the conveyance of the irrigation unit conveyor (63).

  Each conveyor of the pre-flooring conveyor (62), the irrigation section conveyor (63), the pre-soiling conveyor (64), and the nursery box take-out conveyor (75) is well transported at the front and rear ends of the left and right transport guides (15). By the fitting member (101) which fits into the apparatus of the side and conveyance lower side, it is provided so that attachment or detachment is possible independently with respect to the seeder (1) main body. Therefore, the irrigation device (29) is arranged between the sowing device (7) and the soil covering device (8) by assembling the irrigation part conveyor (63) between the seeding device (7) and the soil covering device (8). Can do. Or it can also be set as the structure which irrigates after soil covering by assembling the irrigation part conveyor (63) to the back side of the soil covering apparatus (8).

  When the irrigation device (29) is disposed between the seeding device (7) and the soil covering device (8), the conveyor before covering soil (29) is provided so that the space between the irrigation device (29) and the soil covering device (8) is sufficiently obtained. 64) is preferably assembled on the rear side of the irrigation section conveyor (63), or the pre-soil covering conveyor (64) assembled on the rear side of the irrigation device (29) is replaced with a long conveyor. As a result, even if the paddy soil with poor water absorption is used for the floor soil, the irrigation of the irrigation device (29) can be permeated into the floor soil, and the soil can be covered with the water on the upper surface of the floor soil, so The sow seeds are less likely to be oxygen deficient, and a stable germination rate is obtained. Moreover, it is good also as a structure which can extend / contract the pre-soil-covering conveyor (64) by comprising the non-driving roller in front of the soil covering conveyor (64), and making it the structure which can assemble | attach this non-driving roller to arbitrary positions. When the irrigation device (29) is disposed between the floor soil filling device (6) and the seeding device (7), the irrigation device (29) and the seeding device (7) are disposed for the same reason as described above. It is desirable to lengthen the conveyor.

  The upper end opening of the soil covering tank (84) is provided lower than the upper end opening of the seed tank (68), and the upper end opening of the floor soil tank (54) is provided lower than the upper end opening of the soil covering tank (84). ing. As a result, since the amount of use is large, an operator must frequently supply floor soil to the floor soil tank (54) with a scoop. This floor soil supply operation can be easily performed at a low level, and then the cover soil having a high supply frequency is used. The covering soil supply operation to the tank (84) can be easily performed. In addition, since the opening at the upper end of the seed tank (68) is high, it is possible to prevent the floor or cover soil from being accidentally supplied to the seed tank (68) when performing the floor soil supply operation or the cover soil supply operation. The seeding device (7) can be prevented from malfunctioning due to the supply of soil.

  The floor soil tank (54) is supported via a deformable rubber elastic body (113), and swings with its weight each time the operator supplies the floor soil. Thereby, the bridging phenomenon of the floor soil in the floor soil tank (54) can be prevented, and when the soil which is likely to cause the bridging phenomenon such as paddy soil is used as the floor soil, the floor soil can be properly fed out. The floor soil tank (54) can be shaken by the operator touching the floor soil tank (54) with a scoop or the like.

  In addition, when performing seeding work on a seedling box (110) whose left and right width is smaller than the left and right width of the conveyor (less than 30 cm), as shown in FIG. The regulation guide (112) may be attached to regulate the left and right positions of the nursery box (110) on the conveyor. At this time, the seeds fed out by the seeding device (7) are wasted at the left and right side portions, so that the receiving container (111) for receiving the seeds is disposed at the position on the left and right sides below the seeding device (7). do it.

  Moreover, it can also be seed | inoculated with the seeding machine (1) to the seedling tray (120) which is a seedling raising device in which a plurality of cells partitioned for each strain are arranged vertically and horizontally. The seedling tray (120) is made of a resin that is flexible and formed of a soft material in consideration of conveyance by a seedling transplanter, and includes 14 rows of cells (121) in the front-rear direction. Each of the plurality of cells (121) is open at the top, and is connected to each other at the upper end portion to be integrally formed. The outer peripheral edge (122), which is the front and rear ends and the left and right ends of the seedling tray (120), extends upward from the upper end of the cell (121) and extends outward from the upper end of the upper extension (122a). The outer extending portion (122b) extends, and the upper surface of the outer extending portion (122b) is formed in a substantially horizontal plane. Therefore, a space part (123) is formed above the plurality of cells (121) and surrounded by the outer peripheral edge part (122), and the space part (123) communicates with each of the plurality of cells (121). .

  Next, an example of sowing and laying on the floor using the seedling tray (120) will be described. As a first example, in the seeder (1), the seedling tray (120) is placed in a rigid under tray, and the seedling tray (120) is transported along the transport path (3) together with the under tray. The under tray generally has a configuration in which an under tray is provided with four side walls and a bottom plate and opened upward, like a rectangular seedling box, but a pair of opposing side walls (for example, a front side wall and a rear side wall). ) Is made lower or eliminated than the other side walls (for example, the left and right side walls), the seedling tray (120) can be easily removed from the side wall (for example, the front side or the rear side) that has been lowered or eliminated. You can go in and out, and you can improve the work efficiency of raising seedlings. The soil is filled to the vicinity of the upper ends of the plurality of cells (121) by the floor soil filling device (6), seeded in each cell (121) by the seeding device (7), and the seedling tray (8) is seeded by the soil covering device (8). 120) to the upper end (the upper end of the outer peripheral edge (122), the upper end of the space (123)). In this state, since there is a gap between each cell (121), it is inferior in strength compared to a rectangular rice seedling box, but each cell (121) in plan view in the space (123). Therefore, the strength of the seedling tray (120) is improved by the covering. The seedling tray (120) is taken out from the undertray, arranged on the floor of a nursery house, etc., and a flat pressing plate (stepping plate) (124) is placed on the seedling tray (120), and the pressing plate is placed outside the seedling tray (120). The seedling tray (120) is pressed against the floor by contacting the upper surface of the outwardly extending portion (122b) of the peripheral edge portion (122) and the upper surface of the covering soil in the space portion (123) and placing the operator on the pressing plate. Lay down. Therefore, the seedling tray (120) is in close contact with the placement floor, and the nutrients are absorbed from the placement floor, so that the seedling can be favorably grown. At the time of pressing the seedling tray (120), the strength of the seedling tray (120) is improved by the covering soil, so that the seedling tray (120) is configured with a gap between each cell (121), Deformation and breakage due to pressing are prevented.

  As a second example, only the differences from the first example described above will be described. By the soil covering device (8), the seedling tray is placed up to the upper end of each cell (121) or higher than the upper end of each cell (121). Cover to lower than the upper end of (120). The pressing plate (124) is formed by projecting a rectangular lower insertion portion (124a) that matches the space portion (123) of the seedling tray (120) in a plan view to the lower surface side, and the lower insertion portion on the lower surface. A portion other than (124a) (a portion higher than the lower surface of the lower insertion portion (124a)) becomes an outer peripheral contact portion (124b) that contacts the outer peripheral edge portion (122) of the seedling tray (120). When the seedling tray (120) is pressed against the placing floor, the lower insertion portion (124a) of the pressing plate (124) is fitted into the space (123) of the seedling tray (120) and the pressing plate (124) is pressed from above. Thereby, the lower insertion part (124a) contacts and presses the upper surface of the cover soil in the seedling tray (120), and the outer peripheral contact part (124b) contacts the upper surface of the outward extension part (122b) of the outer peripheral edge part (122). Therefore, the seedling tray (120) can be accurately pressed by the lower insertion portion (124a) and the outer peripheral contact portion (124b), and deformation and breakage of the seedling tray (120) can be prevented. The seedling tray (120) can be laid on the floor to perform good seedling raising. Further, since the amount of soil covering the seedling tray (120) is reduced, the cost of raising seedlings can be reduced, the entire seedling tray (120) can be reduced in weight, and the transporting operation of the seedling tray (120) can be performed easily. In addition, it is good also as a structure which provides a plurality of lower insertion parts (124a) in the lower surface side of a press plate (124), and presses several seedling trays (120) simultaneously. In addition, a gripping portion held by an operator and an indicator body that serves as a guide for the amount of sinking of the seedling tray (120) when the seedling tray (120) is pressed are provided on the outer peripheral portion of the pressing plate (124). Also good. Thereby, workability | operativity improves and the improvement of work efficiency can be aimed at.

  It should be noted that seeds seeded between the cells (120) at the upper end of the cell (121) between the seeding position (H) of the seeding device (7) and the soil covering position of the soil covering device (8) are contained in the cell (120). A seeding brush can be provided to drop the seed. Thereby, a seed can be reliably supplied in a cell (120). In addition, you may comprise a sowing brush with a rubber plate. A irrigation device may be provided between the sowing position (H) of the seeding device (7) and the soil covering position of the soil covering device (8) to stabilize the soil and seeds in the cell (120).

  As another example of the sowing machine, the transport path is arranged in parallel, and the seedling box is transported in the first transport path and the second transport path in opposite directions. A seeding device is provided, a second seeding device and a soil covering device are provided in the second transport path, and the seedling box is laterally fed from the transport terminal end of the first transport path to the transport start end of the second transport path in the same direction. It can be set as the structure which provided the horizontal conveying apparatus. With this configuration, since the same seedling box is transported in opposite directions at the seeding position of the first seeding device and the second seeding device, the seeding density at one end of the conventional seedling box is as follows. Decrease can be prevented and sowing density can be made uniform. In addition, since the transfer start end of the first transfer path and the transfer end of the second transfer path can be arranged close to each other, the operator can supply empty nursery boxes and take out the seedling boxes after sowing. Easy to do. In addition, since a 1st sowing apparatus and a 2nd sowing apparatus can be arrange | positioned in the near position, it is good also as a structure by which a seed is supplied to a 1st sowing apparatus and a 2nd sowing apparatus from a common seed tank. In addition, since the floor soil filling device and the soil covering device can be arranged at close positions, the soil culture medium may be supplied from the common soil cultivation tank to the floor soil filling device and the soil covering device. In addition, a large number of seedling boxes may be transported on the transport path with the transversal direction of the seedling box being directed to the transport direction of the transport path to improve transport efficiency.

Claims (3)

  In the seedling device in which a plurality of cells (121) are arranged vertically and horizontally, the upper end of the outer peripheral edge (122) of the seedling device is higher than the upper end of the cell (121), and each cell ( 121) A nursery that constitutes a space (123) communicating with 121).   Soil filling and sowing in the cell (121) of the seedling device (120) according to claim 1, supplying cover soil to the space portion (123), and pressing the seedling device (120) supplied with the cover material against the floor How to lay a seedling device   A lower insertion portion (124a) that enters the space (123) of the seedling device (120) according to claim 1, and the outer peripheral edge (122) of the seedling device (120) at a higher position than the lower insertion portion (124a). The press plate of the seedling device provided with an outer peripheral contact portion (124b) that contacts the outer peripheral contact portion.

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