JP2006149267A - Seedling-distributing device of transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seedling-distributing device transporting the seedlings by separating an individual seedling, distributing the seedlings for left and right, delivering them to seedling-transplanting devices at 2 positions, transplanting them on a main field, and without having a fear of causing the damage of the seedlings or blocking of the seedlings on switching the distributing direction of the seedlings. <P>SOLUTION: This seedling-distributing device is provided with that a right-conveying belt 41 for conveying to right side and a left-conveying belt 42 for conveying to left side are provided at the seedling-distributing device 40a, the right-conveying belt 41 and left-conveying belt 42 are a multiple number of belts of which conveying beginning ends are wound on a same distributing shaft 43, the distributing shaft 43 moves left and right from the position at the lower directional delivering end of a seedling transferring device 30a, and the seedling P is supplied to a position where only the right-conveying belt 41 or only the left-conveying belt 42 is present, caused by the left and right transfer of the distributing shaft 43. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a transplanter that separates collective seedlings such as paper tube seedlings, conveys them separately, distributes the seedlings to the left and right, transfers them to two seedling planting devices, and transplants them into the field. The present invention relates to a seedling sorting device.

  In a transplanting machine for planting a plurality of strips, an apparatus that distributes seedlings from one seedling supply device and delivers them to two seedling planting devices in order to reduce the size of the device and reduce the number of workers is known as Japanese Patent Application Laid-Open No. 2003-79209. .

  The seedling sorting device of this transplanter is configured so that the seedling transfer speed of the seedling transfer belt is faster than the seedling transfer speed of the seedling receiving belt, and the individual seedlings are transported apart from each other, and a plurality of seedlings are transferred to the sending end of the seedling transfer belt. A seedling sorting device that distributes to the left and right is provided, and a seedling alignment device is provided on both the left and right sides of the seedling sorting device, and the seedling alignment device closely aligns the seedling rows that are not aligned. A seedling planting device is provided.

  And this seedling distribution device has an elongated shape corresponding to the paper tube length of the seedling in a substantially water drop shape in the rear view, a position for distributing the seedling to the seedling selection device as the right transfer path, and the left transfer path The tip part is reciprocally rotated by about 70 degrees between the seedling sorting positions of the seedling sorting apparatus and the seedlings are sorted to the left and right for every plurality of seedlings.

JP 2003-79209 A

  In the conventional technique disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 2003-79209, the tip of the seedling sorting device is reciprocally rotated after each seedling passes and before the next seedling is inserted. In the transplanted machine, the passage of each seedling is a short time of about 0.2 seconds, and when the next seedling is inserted, the tip of the seedling sorting apparatus has not been rotated, and the seedling sorting apparatus Seedlings collided and seedlings were damaged, or seedlings were clogged and became impossible to plant.

  Accordingly, an object of the present invention is to provide a seedling sorting device for a transplanting machine that does not cause seedling damage or seedling clogging when switching the sorting direction of the seedling sorting device.

  The seedling sorting device of the transplanting machine according to the invention of claim 1 is provided with seedling transfer devices 30a and 30b for separating the aggregated seedlings such as paper tube seedlings and transporting them separately between the seedlings P. A seedling distribution device 40a, 40b that distributes the seedling P left and right is provided below the delivery end of 30b, and the seedling distribution devices 40a, 40b are provided with respective seedling planting devices 70a, 70b, 70c, 70d. In the seedling sorting devices 40a and 40b, a right transport belt 41 transported to the right side and a left transport belt 42 transported to the left side are provided. The right transport belt 41 and the left transport belt 42 have substantially the same plane as the seedling transport surface, The conveyor belt 41 and the left conveyor belt 42 are a plurality of belts wound around the same distribution shaft 43 at the conveyance start end, and the distribution shaft 43 moves to the left and right from a position S below the delivery end of the seedling transfer devices 30a and 30b. The right conveyor belt 41 is moved below the delivery ends of the seedling transfer devices 30a and 30b by the left and right movement of the distribution shaft 43. Where became only or left transport belt 42 only it is to supply seedling transfer device 30a, the seedlings P from 30b.

  According to the first aspect of the present invention, the seedling sorting apparatus is provided with the right transport belt that transports to the right side and the left transport belt that transports to the left side, and the right transport belt and the left transport belt have substantially the same plane as the seedling transport surface, The conveyor belt and the left conveyor belt are a plurality of belts whose start ends are wound around the same distribution shaft, and the distribution shaft moves to the left and right from the position below the delivery end of the seedling transfer device. The seedling from the seedling transfer device is supplied to the place where only the right transport belt or only the left transport belt is located below the sending end of the seedling transfer device by movement, and the right transport belt and the left transport belt are switched when switching the distribution direction of the seedling distribution device. Therefore, there is no possibility that the seedling will be damaged or the seedling will be clogged.

  The purpose of providing a seedling sorting device for a transplanter that does not cause seedling damage or clogging of seedlings when switching the sorting direction of the seedling sorting device, The left conveyor belt 42 is provided on the left side. The right conveyor belt 41 and the left conveyor belt 42 have substantially the same plane as the seedling conveyor surface, and the right conveyor belt 41 and the left conveyor belt 42 have the same distribution start shaft 43 at the beginning of conveyance. A plurality of belts are wound around, and the sorting shaft 43 moves to the left and right from the position S below the sending end of the seedling transfer devices 30a and 30b. By the left and right movement of the sorting shaft 43, the seedling transfer devices 30a and 30b This was realized by supplying the seedlings P from the seedling transfer devices 30a and 30b to the place where only the right conveyor belt 41 or only the left conveyor belt 42 is located below the delivery end.

  FIG. 1 is a rear view of a seedling sorting apparatus of a transplanter according to an embodiment of the present invention, and shows a four-row transplanter that transplants four strands into a main field at a time.

  As a collective seedling used in this transplanter, a paper cylinder seedling in which the root portion of the paper cylinder collective seedling container is covered with culture soil is shown. This paper tube collective seedling container is one in which a large number of hexagonal column-shaped upper and lower open paper tubes are neatly pasted together with glue when deployed. When the seedlings are packed and seeded in this paper tube and seeded, the seedlings grow to become a paper tube aggregate seedling, and at the time of transplantation, the seedlings are connected in an orderly manner so as to be separable while maintaining an appropriate connection strength.

  Separation tools for separating the seedlings from the seedlings into a horizontal row of seedlings P are well-known, the plate is placed along the side of the seedlings, an arc needle is pierced from the top of the paper tube of the seedlings, and the separator is in front The whole seedling P in a horizontal row is tilted downward to bend and separate.

  Next, the seedling supply device for supplying the seedlings P separated in a horizontal row to one seedling receiving unit 2 and the seedling P received in the seedling receiving unit 2 are delivered to the two seedling sorting devices 40a and 40b of the seedling supplying device. The seedling distribution device 40a, 40b distributes the seedling P to the left and right and passes it to the four seedling planting devices 70a, 70b, 70c, 70d, and the seedling planting devices 70a, 70b, 70c, 70d transplant to the main field. An explanation will be given of a four-row transplanter that transplants into the mainland at once.

  The transplanter is attached to the tractor and pulled, and advances in the illustrated depth direction. Four seedling planting devices 70a, 70b, 70c, 70d are provided below the seedling feeding device, and each of the four seedling planting devices 70a, 70b, 70c, 70d is connected to the seedling feeding device and fed with seedlings P. Transplant to the mainland at once.

  The seedling supply device is provided with a pair of left and right seedling supply device frames 1a and 1b, and the seedling supply device frames 1a and 1b are fixed to the machine frame of the transplanter. A pair of left and right seedling receiving belts 3a and 3b are provided in the central direction from above the left and right seedling supply device frames 1a and 1b.

  The center side of the pair of left and right seedling receiving belts 3a and 3b is a single seedling receiving section 2 in the case where there is one worker. The pair of seedling receiving belts 3a, 3b is stretched between pulleys, and has an inverted L shape in which the upper surface on the center side is horizontal and the sending end side is vertical, and the opposite directions, that is, the upper surfaces rotate outward.

  In addition, the horizontal portions of the left and right seedling receiving belts 3a and 3b are two seedling receiving portions when there are two workers.

  The seedling transfer belts 10a and 10b are provided so as to face the vertical portion on the sending end side of the seedling receiving belts 3a and 3b.

  The pair of seedling transfer belts 10a and 10b is provided at the sending end below the vertical portion from the horizontal portion of the seedling receiving belts 3a and 3b, and the vertical portions of the seedling transfer belts 10a and 10b and the seedling receiving belts 3a and 3b are in contact with each other. The seedlings P are separated and sandwiched between the tops of the seedling receiving belts 3a and 3b, and the seedling transfer speeds of the seedling transfer belts 10a and 10b are substantially the same as the seedling transporting speeds of the seedling receiving belts 3a and 3b. To do.

  The seedling sorting devices 20a and 20b are respectively provided from the lower side to the inside which are the sending ends of the vertical portions of the seedling transfer belts 10a and 10b and the seedling receiving belts 3a and 3b.

  The seedling sorting devices 20a and 20b are for removing missing seedlings (defective seedlings) that have not grown from the seedlings P supplied to the seedling receiving belts 3a and 3b. Belts and paper sandwiching the leaves of the inverted seedlings P With the belt supporting the lower part of the tube, the missing seedling lacking the leaf part of the seedling P is not pinched by the belt, and only the missing seedling is dropped from the row of seedlings P that are continuously conveyed and discharged out of the system. .

  A pair of seedling transfer devices 30a and 30b are provided in a row inside the seedling sorting devices 20a and 20b.

  In the seedling transfer devices 30a and 30b, a good seedling receiving belt 31, which is a plurality of narrow belts, is stretched horizontally, and the seedling conveying speed of the good seedling receiving belt 31 is the seedling conveying speed of the seedling receiving belts 3a and 3b. It is made faster and transported apart between individual seedlings P.

  A first seedling guide ring 32 is provided above the conveyance end of the good seedling receiving belt 31, and a second seedling guide ring 33 is provided opposite to the conveyance end of the good seedling receiving belt 31. The first seedling guide wheel 32 and the second seedling guide wheel 33 are soft rubber rollers having a plurality of holes, and the peripheral speed is substantially the same as the conveying speed of the good seedling receiving belt 31.

  The seedlings P, which are only good seedlings in the seedling sorting devices 20a and 20b, are conveyed on the upper surface of the good seedling receiving belt 31, and the pulley 35, the first seedling guide wheel 32, and the second seedling at the conveyance end of the good seedling receiving belt 31 are conveyed. It is drawn out between the guide wheels 33.

  At the delivery end of the good seedling receiving belt 31, the seedling P is sent from the good seedling receiving belt 31 wound around the second seedling guide wheel 33 and the pulley 35 and fed downward.

  Below the good seedling receiving belt 31 wound around the second seedling guide ring 33 and the pulley 35 as the sending end of the seedling transfer devices 30a and 30b, a pair of seedling sorting devices 40a and 40b for sorting the seedling P left and right are provided. Provide.

  The seedling sorting devices 40a and 40b are provided with a right transport belt 41 for transporting the seedling P to the right side and a left transport belt 42 for transporting the seedling P to the left side. The following description is based on the right seedling sorting apparatus 40a.

  A distribution shaft 43 is provided from the seedling supply device frame 1a below the sending end of the seedling transfer device 30a, and a plurality of pulleys 43a fitted to the distribution shaft 43 so as to freely rotate are provided.

  The right conveyor belt 41 is a rubber belt that expands and contracts, and the back surface is arranged between a pulley 43a of the distributing shaft 43, a pulley 50 on the seedling sorting device 20a side, a pulley 51 on the outside lower side thereof, and a pulley 52 provided below the pulley 50. It is stretched in a substantially inverted L shape by visual inspection. The upper surface between the pulley 43a and the pulley 50 and between the pulley 50 and the pulley 51 is a conveying surface for the seedling P, and the upper surface rotates to the right. The pulleys 50, 51, 52 are fixed to a rotating shaft provided from the seedling supply device frame 1a, and rotate the right conveyance belt 41.

  The left conveyor belt 42 is a rubber belt that expands and contracts. Between the pulley 43a of the distributing shaft 43, the pulley 53 on the opposite side of the seedling sorting device 20a, the pulley 54 on the outside lower side thereof, and the pulley 54 provided below the pulley 53 In the back view, it is stretched in a substantially inverted L shape. The upper surface between the pulley 43a and the pulley 53 and between the pulley 53 and the pulley 54 is used as a conveying surface for the seedling P, and the upper surface rotates to the left. The pulleys 53, 54, and 55 are fixed to a rotating shaft provided from the seedling supply device frame 1a, and rotate the left conveying belt.

  Below the delivery end of the seedling transfer device 30a, the right transport belt 41 and the left transport belt 42 have substantially the same plane as the transport surface of the seedling P, and the right transport belt 41 and the left transport belt 42 have the same transport start end at the distribution shaft 43. A plurality of narrow belts wound alternately on each other.

  In the embodiment, the right conveyance belt 41 is provided in two, and a right intermediate conveyance belt 44 is provided between the distribution shaft 43 and the conveyance start end at a predetermined distance seedling sorting device 20a side. A right holding belt 46 with a protrusion is provided between the pulleys 50 and 51 of the right conveying belt 41 and the right intermediate conveying belt 44, and a seedling P is formed by the right conveying belt 41, the right intermediate conveying belt 44, and the right holding belt 46. Nipped and transported.

  A guide wheel 48 is provided below the right clamping belt 46, and the seedlings P fed from the right conveying belt 41, the right intermediate conveying belt 44, and the right clamping belt 46 are fed out toward the seedling aligning device 60a.

  In the embodiment, the left conveyance belt 42 is provided in two, and a left intermediate conveyance belt 45 having a pulley 53 as a conveyance start end is provided therebetween. A left holding belt 47 with a protrusion is provided between the pulley 53 and the pulley 54 of the left conveying belt 42 and the left intermediate conveying belt 45, and the left conveying belt 42, the left intermediate conveying belt 45, and the left holding belt 47 are used as a seedling P. Nipped and transported.

  A guide wheel 49 is provided below the left pinching belt 47, and the seedling P fed from the left conveyance belt 42, the left intermediate conveyance belt 45, and the left pinching belt 47 is fed out toward the seedling alignment device 60b.

  The sorting shaft 43 moves horizontally from side to side from the position S below the sending end of the seedling transfer devices 30a and 30b, and sorts the seedling P to the left and right.

  Provided between the first seedling guide wheel 32 and the second seedling guide wheel 33, and a signal that the seedling P from the seedling alignment devices 60a, 60b, 60c, 60d located downstream from the seedling sorting devices 40a, 40b is satisfied In response to the signal of the seedling P position passing through the distribution shaft 43 by the detector 34, the solenoid does not fall from the good seedling receiving belt 31 wrapped around the second seedling guide wheel 33 and the pulley 35 by the solenoid. The distribution axis 43 is moved instantaneously.

  In the embodiment, the moving distance of the sorting shaft 43 is set such that the axial position 43b of the sorting shaft 43 is moved by 10 mm from the position S below the sending end of the seedling transfer devices 30a and 30b.

  When the distribution shaft 43 is moved to the left due to the left / right movement of the distribution shaft 43 (FIGS. 4 and 7), only the right conveyor belt 41 is provided below the delivery ends of the seedling transfer devices 30a and 30b, and the distribution shaft 43 is When moving to the right (FIGS. 3 and 6), the seedling P from the seedling transfer devices 30a and 30b is supplied to the place where only the left conveying belt 42 is provided below the sending ends of the seedling transfer devices 30a and 30b. .

  Seedling aligning devices 60a, 60b, 60c, and 60d are provided respectively on the left and right of the pair of seedling sorting devices 40a and 40b.

  The seedling alignment devices 60a, 60b, 60c, 60d hold a plurality of seedlings P, and the seedling sorting devices 20a, 20b remove the missing seedlings, and the seedling sorting devices 40a, 40b supply the seedlings P to the other Thus, the irregularly rough seedlings P row are closely aligned and delivered to the seedling planting devices 70a, 70b, 70c, 70d at equal intervals.

  The seedling alignment devices 60a, 60b, 60c, and 60d are provided with a detector that detects excess or deficiency of the seedlings P, and when the excess of the seedlings P is detected, the seedling sorting devices 40a and 40b are switched so as to supply the seedlings P to the other. That is, the seedling distribution devices 40a and 40b switch the distribution direction for each number of unspecified seedlings P. Further, when the detector detects a shortage of seedlings P, the upstream side is accelerated from the seedling alignment devices 60a, 60b, 60c, 60d.

  Each of the seedling planting devices 70a, 70b, 70c, and 70d is connected to the four seedling arranging devices 60a, 60b, 60c, and 60d. The seedling planting devices 70a, 70b, 70c, and 70d consist of an opener, an elastic disk, and a pressure-reducing wheel. A planting groove is opened by the opener, a seedling P is sandwiched between a pair of elastic disks, and a pair of pressure-reducing wheels are planted. To suppress the left and right of the seedling P. The elastic disks of the seedling planting devices 70a, 70b, 70c, and 70d and the seedling alignment devices 60a, 60b, 60c, and 60d are connected by a pair of elastic vertical conveyor belts.

  As described above, the seedling P supplied to one seedling receiving unit 2 is divided into left and right parts, and transferred to the four seedling planting apparatuses 70a, 70b, 70c, 70d by the pair of seedling distributing apparatuses 40a, 40b, Transplant to the main field.

  Next, the operation of the seedling sorting device of the transplanter will be described.

  When there is only one worker, the seedlings P are separated from the set seedlings in a standing state into a horizontal row by using a separating tool, and are placed on both of the pair of seedling receiving belts 3a and 3b as one seedling receiving portion 2. Invert and supply.

  The seedling P supplied over both the pair of seedling receiving belts 3a and 3b is moved left and right between the pair of seedling receiving belts 3a and 3b by the pair of seedling receiving belts 3a and 3b rotating in opposite directions. Divided.

  When there are two workers, the seedlings P are separated from the set seedlings in a standing state into a horizontal row by a separating tool, and one person is placed on one side of the seedling receiving belts 3a and 3b as two seedling receiving portions. Invert and supply.

  Next, the seedling P that has reached the end of the horizontal portion of the seedling receiving belts 3a, 3b is held by the vertical portions of the seedling transfer belts 10a, 10b and the seedling receiving belts 3a, 3b and is conveyed downward, and the seedling selection device 20a , 20b.

  The missing seedlings are removed by the seedling sorting devices 20a, 20b, 20c, and 20d, and are transported apart by the seedling transfer devices 30a and 30b, and unspecified by the seedling sorting devices 40a and 40b. Sorted to the left and right.

  It should be noted that the seedling P does not fall at the timing when the sorting shaft 43 is moved by the detector 34, and is surely sorted left and right. In addition, even with the seedling P that is finally delivered to the right conveyance belt 41 or the left conveyance belt 42 when switching the distribution, the belt wound around the distribution shaft 43 is also moved and carried together.

  The seedlings P distributed to the left and right by the seedling allocation devices 40a and 40b are closely aligned with the seedling P rows that are not aligned by the seedling alignment devices 60a, 60b, 60c, and 60d.

  The seedlings P sent out from the seedling alignment devices 60a, 60b, 60c, 60d at predetermined intervals are transplanted into the main field by the four seedling planting devices 70a, 70b, 70c, 70d.

  In the above embodiment, the seedling P is shown as the seedling P in the paper tube assembly seedling by the paper tube assembly seedling container. However, even if the seedling culture medium itself is made of the inorganic fiber or polymer compound forming the seedling container, Even if the seedlings taken out are transported separately between individual seedlings, they may be used.

  Moreover, although the example in which the operator supplies the seedling P by hand using the separating tool has been shown, it may be mechanically supplied by an automatic supply device.

  Further, although the example in which the distribution shaft 43 is horizontally moved to the left and right by the solenoid is shown, it may be an air cylinder instead of the solenoid, or may be moved to the left and right by an arc.

It is a rear view which shows one Example of the seedling distribution apparatus of a transplant machine. It is the elements on larger scale which show the right half. It is the elements on larger scale which show the operation state of FIG. It is a figure which shows another operation state of FIG. It is the top view which notched a part of FIG. FIG. 4 is a partially enlarged view of FIG. 3. It is the elements on larger scale of FIG.

Explanation of symbols

30a, 30b Seedling transfer device
40a, 40b Seedling sorting device
41 Right conveyor belt
42 Left conveyor belt
43 Distribution axis
70a, 70b, 70c, 70d Seedling planting device P Seedling S Position below the delivery end

Claims (1)

  A seedling transfer device that separates and conveys aggregated seedlings such as paper tube seedlings is provided, and a seedling distribution device that distributes seedlings to the left and right is provided below the sending end of the seedling transfer device. In the transplanter provided with each seedling planting device, the seedling sorting device is provided with a right transport belt that transports to the right side and a left transport belt that transports to the left side, and the right transport belt and the left transport belt are substantially flush. The right and left conveyor belts are a plurality of belts with the conveyance start ends wound around the same distribution shaft. The transplanting device of the transplanting machine that moves to the left and right, and the seedling from the seedling transfer device is supplied to the place where only the right transport belt or only the left transport belt is below the sending end of the seedling transfer device by the left and right movement of the sorting shaft.

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