JPH0434649Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention is designed to plant seedlings such as green onions on one side wall of the groove while traveling in a planting groove previously formed in the field. This relates to a vertical seedling transport device in a transplanter.

[Prior art]

The seedlings supplied to the upper seedling feeding device are dropped and fed to the lower seedling planting device and planted on one side of the trench.It is used as a vertical seedling conveying device for a transplanter, and feeds and places seedlings horizontally. A horizontal seedling feeding device is installed,
A push roller for pushing out the horizontal seedlings in an oblique position is provided between this horizontally placed type seedling feeding device and a vertical seedling conveying device consisting of a pair of front and rear conveyor belts for vertically conveying the seedlings. was previously proposed by the present applicant as Utility Application No. 71902/1983,
In the seedling pushing roller installed between the horizontal seedling feeding device and the vertical seedling conveying device as in this existing application,
Since the swinging angle of the seedling pushing roller, which swings intermittently between the standby position and the operating position, increases, the amount of time it takes to press the seedlings in cooperation with the conveyor belt is reduced, making it impossible to reliably transport the seedlings. There was a problem that transportation was disrupted.

[Purpose of invention]

The present invention was devised in view of the above-mentioned conventional situation and to eliminate the drawbacks. By reducing the swing angle of the seedling pushing roller, the operating time of the seedling pushing roller that cooperates with the conveyor belt is reduced. It is an object of the present invention to provide a vertical seedling conveyance device for a transplanter that is capable of long and orderly vertical conveyance.

[Structure of the idea]

In order to achieve the above object, the vertical seedling transport device in the transplanter of the present invention comprises a seedling supply device having a plurality of vertical seedling insertion spaces at appropriate intervals around it and rotating around a vertical axis to intermittently transport seedlings in an upright position in the vertical spaces to a seedling succession position, and a vertical seedling transport device for transporting the seedlings in an upright position in a downward direction along the seedling body direction in the seedling succession position of the seedling supply device, the vertical seedling transport device comprising a vertical transport belt facing the seedling succession position of the seedling supply device, a seedling pushing roller for pressing the seedlings in the seedling succession position of the seedling supply device against the vertical transport belt while maintaining them in an upright position, and an auxiliary vertical transport belt located below the seedling pushing roller and facing the vertical transport belt, and further comprising a swing drive mechanism for swinging the seedling pushing roller intermittently between a waiting position where the seedlings in the vertical spaces are allowed to be transported to the seedling succession position facing the vertical transport belt, and a pressing position where the seedlings are pressed against the vertical transport belt.

〔Example〕

An embodiment of the present invention shown in the drawings will be described below. 1 and 2, this transplanter 1 is roughly divided into a traveling device 2 and a transplanting device 3, and this traveling device 2 is mounted and fixed above a body frame 4 extending in the front-rear direction. a transmission case 5 , an engine 6 in front of the transmission case 5 , a crawler-type traveling device 7 that is disposed below the fuselage frame 4 and runs while touching the bottom surface 9 of the planting groove 8 , a top end of the fuselage frame 4 . Left and right free rotation wheels 12, 12 located in the front and facing into the planting groove 8
It is composed of guide wheels 11 and the like.

On the other hand, the transplant device 3 located behind the traveling device 2
is a seedling supply device A installed above the planting frame 13 extending rearward from the rear upper part of the body frame 4; Seedling vertical conveyance device B that transports the seedlings to the seedling planting device C below, and the seedlings that are installed below this vertical seedling conveyance device B, face the planting groove 8, and fix the seedlings at the seedling drop position Z to one side wall of the groove. It is composed of a planting device C, etc.

The mission case 5 is driven by a V-belt 16 wrapped around the main shaft pulley 14 of the mission case 5 and the engine pulley 15 of the engine 6, and the crawler 17 of the traveling device 7 is Drive wheel 18 around which crawler 17 is wound
It is driven by a chain 21 that is wound between a sprocket 19 coaxial with the transmission case 5 and a sprocket 20 of the transmission case 5.

An intermediate shaft 22 is rotatably supported on a bearing 23 provided above the rear part of the fuselage frame 4.
An intermediate shaft pulley 24 is fixed to 2. The intermediate shaft 22 is driven by a V-pulley 26 that is wound around an intermediate shaft pulley 24 and a drive pulley 25 of the transmission case 5. Furthermore, this intermediate shaft 22 includes a sprocket 27 located at the right shaft end for driving the seedling feeding device A and the vertical seedling conveying device B, and a seedling pushing plate 93 of the seedling planting device C as shown in FIG. An eccentric cam 28 for intermittent driving is fixed.

Next, the seedling feeding device A shown in FIGS. 3 and 4 will be explained. This seedling supply device A is designed to intermittently transfer the seedlings 39 supplied in the vertical direction to the seedling transfer position X around the vertical axis 32. That is, the seedling holder 29 fixed to the machine frame is provided with a vertical guide cylinder 30 formed in a cylindrical shape and a bearing boss 31 formed in the center. A guide cylinder 3 is attached to a freely pivoted vertical shaft 32.
A rotating cylinder 33 located above 0 is fixed. Vertical partition walls 34 are fixed to the outer wall of the rotating cylinder 33 by bolts or the like at positions dividing the outer periphery into eight equal parts. is held and extends below the rotating cylinder 33. These partition walls 34 are partition walls 34 adjacent to each other.
The shape is such that a seedling supply space H, which is wide at the top and narrow at the bottom, is formed in between, making it easy to insert the seedlings and to keep the seedlings upright after insertion. A cylindrical cover 36 projecting upward from the guide cylinder 30 is provided on the outside of the plurality of partition walls 34. At the seedling transfer position X of the seedling holder 29, seedling transfer holes 35 and 37 having the same width as the seedling supply space H formed by cutting out the guide cylinder 30 and the cylindrical cover 36 are opened. Furthermore, a conical lid 38 is removably provided above the rotating cylinder 33 on which the tip of the leaf of the inserted seedling can be leaned so that the broken leaf of the inserted seedling does not get caught.

At the seedling transfer position X of the seedling supply device A, a vertical seedling conveyance device B, which clamps the seedlings 39 at the seedling transfer position X and transports them to the seedling drop position Y below, is integrally connected to the seedling supply device A. A seedling pushing roller 42 presses the seedling 39 at the seedling passing position X to the seedling passing position A seedling transfer device consisting of a vertical conveyance belt 40 is provided to transfer the seedlings, and an auxiliary vertical conveyance belt 41 is provided below the seedling pushing roller 42 opposite to the vertical conveyance belt 40. The seedling pushing roller 42 swings intermittently between a standby position (solid line position in FIG. 4) and an operating position (dotted line position in FIG. 4) for pressing the seedlings 39 against the conveyance surface of the vertical conveyance belt 40. It's summery. In other words, this seedling vertical conveyance device B has a vertical conveyance belt 40 installed on the rear side of the seedling transfer position X.
and a pair of front and rear seedling holding conveyance belts including an auxiliary vertical conveyance belt 41 installed on the front side, and a seedling 3 at the seedling transfer position X provided above the vertical conveyance belt 41.
The rear vertical conveying belt 40, which has the same lower end and faces the seedling pushing roller 42, is longer than the auxiliary vertical conveying belt 40 on the front side. belt 40
is getting shorter.

In this way, by arranging the seedling pushing roller 42 to face the vertical conveyance belt 40 that conveys the seedlings in the vertical direction, the swing angle of the seedling pushing roller 42, which swings intermittently between the standby position and the operating position, can be reduced. However, since the operating time of the seedling pushing roller that presses the seedlings in cooperation with the vertical conveyance belt 40 can be extended, after the seedlings are transferred from the seedling feeding device to the vertical seedling conveying device in an orderly manner, the seedlings are transferred to the vertical seedling conveying device. This allows the materials to be transported downward in an orderly manner.

Further, both side walls 43, 43 that house the pair of front and rear vertical conveyor belts 40, 41 are integrally connected to the seedling supply device A at their upper sides. In addition, a fixed shaft 44 is installed to connect the left and right planting frames 13, 13, and a rotating shaft 45 is installed forward of this fixed shaft 44.
As shown in FIG. 12, fixed bosses 46 are slidably fitted into both side walls 43, 43 of the seedling conveying belt 40, and the seedling conveying belt 41 is fitted onto the rotating shaft 45 as shown in FIG. Both walls anterior to 4
A boss 68 with a claw, which is rotatably provided between 3 and 43, is slidably fitted.

A chain 49 is wound around the sprocket 48 fixed to the right shaft end of the aforementioned rotating shaft 45 and the sprocket 27 fixed to the right shaft end of the intermediate shaft 22. 22. Also, the sprocket 47 fixed to the right side of the claw boss 68
A chain 51 is wound around the sprocket 50 fixed to the upper shaft 49 of the seedling transport belt 40 as shown in FIG. The sprockets 53 are engaged, and both seedling conveying belts 40 and 41 are driven via a rotating shaft 45.

Further, the cam plate 54 fixed to the left side of the claw boss 68 is provided with an eccentric pin 55 parallel to the axis, and a protruding cam 56 protruding from the outer diameter in a direction perpendicular to the axis. A vertical swinging shaft 57 is rotatably provided inside the seedling holder 29 of the seedling feeding device A, and a swinging arm 58 is attached to the swinging shaft 57 as shown in FIG. The base end of a swing arm 59 is fixed, and a pin cam 60 fixed to the tip of the swing arm 58 is connected to the protrusion cam 56 described above.
By moving in contact with the eccentric pin 55 of
It is designed to swing at a predetermined angle about a swing shaft 57.

Further, the base end of a swinging arm 61 is fitted into the vertical shaft 32, and a connecting link 62 is pivotally supported between the tip of the swinging arm 61 and the tip of the swinging arm 59. As shown in FIG. 8, engagement holes 64 are provided on the inner periphery of the drive ring 63 fixed inside the rotating cylinder 33 at positions dividing the circumference into eight equal parts. A ratchet mechanism 67 is fitted therein, which has a rotation preventing ball 65 projecting from the bearing boss 31 and a feed pawl 66 projecting from the connecting link 62 on the other side and engaging only in the feed direction. The rotating cylinder 33 is driven by a ratchet mechanism 67 driven by a swing shaft 57 that swings by a predetermined angle in conjunction with the rotation of the rotary shaft 45.
It is designed to be driven intermittently around the vertical axis 32.

As shown in FIG. 11, bosses 70, 70 with protruding claws that are fixed to the rotating shaft 45 and rotate integrally with the rotating shaft 45 are provided at both left and right ends of the rotating shaft 45, while bosses 68 with claws Engagement claws 69 that engage with the protruding claw bosses 70, 70 are provided on both left and right sides of the
69 is provided, and the engaging claw 69 engages with the protruding claw boss 70 only when the seedling vertical transport device B is moved left and right on the guide shaft 44 and the rotating shaft 45 and positioned at one seedling drop position Y. By mating, the claw boss 68 is driven from the rotating shaft 45. This horizontal movement of the seedling vertical conveyance device B is performed in the 11th
- As shown in FIG. 13, the locking arms 71, which are pivotally supported on both outer sides of the side walls 43, 43, can be brought into a fixed state by engaging with the planting frame 13 on the moved side. . When moving the vertical seedling transport device B from side to side, as shown in FIG. By keeping the disengaged locking arm 71 in a horizontal direction, it can overcome the planting frame 13 it comes into contact with and automatically engage with it by its own weight.

Next, the seedling planting device C will be explained. This seedling planting device C includes left and right hanging frames 73, which are fixed below the left and right planting frames 13, 13, respectively.
73, the front and rear sliding shafts 74a,
It is provided so as to be movable left and right along the axial direction of 74b. That is, a connecting bracket 77 extending in the front-rear direction is provided below the sliding shafts 74a, 74b, and the rear side of the connecting bracket 77 is fixed below the sliding rod 76 that fits into the sliding shaft 74b. The connecting bracket 77 is fixed to the front side by a connecting rod 78 that is engaged with the upper and lower parts of the sliding pipe 75 that is fitted into the sliding shaft 74a, and furthermore, the lower front side of the connecting bracket 77 is fixed to the front sled 79. in front of the rear sled 81
are connected to each other on the front. The front sled 79 and the rear sled 81 are integrally connected to form the planting sled 8.
0. In addition, left and right stopper pins 84, 84 are fixed to the rear sliding shaft 74b to restrict the movement range of the sliding rod 76 that moves on this sliding shaft 74b, and the entire seedling planting device C is moved along the sliding shaft 74a. , 74b by a predetermined distance.

At the left and right ends of the rear sled 81, there are interlocking rods for pressing the seedling planting device C against the groove side wall 10 in a predetermined direction as the seedling vertical transport device B moves to the left and right seedling drop positions Y. 120, 120 are each extended and fixed upwardly, and as the vertical seedling conveying device B moves left and right, the interlocking rod 120 is pushed out by contact with the side wall 43 of the vertical seedling conveying device B, and the seedlings are planted. Device C
is adapted to come into contact with one of the planting groove side walls 10.

From the side surface of the aforementioned front sled 79 to the side surface of the rear sled 81, the left and right guide plates 82, 82 have a width such that the rear side slides in sliding contact with the left and right groove side walls 10, 10, and the front side is narrower than that width. are provided respectively, and these left and right guide boards 8
2 and 82, the guide plate 82 on the side opposite to the planting side is automatically pressed against the groove side wall 10 around diagonal vertical pins 83, 83 provided on the front surface of the front sled 79. The automatic pressing mechanism 85 is configured as follows.

In other words, this automatic pressing mechanism 85 is as shown in FIGS.
As shown in detail in FIG. 17, the base end is pivoted inside the guide plates 82, 82 provided on the left and right sides,
Left and right connecting rods 89 are inserted into brackets 88, 88 hanging from the sliding pipe 75 located above.
A and 89b are respectively provided, and in the connecting pipe 84 fixed to the tip of the connecting rod 89b provided on the right side, the connecting rod 89a on the left side is placed at a predetermined opposing interval so that the tip can freely slide. A compression spring 87 passing through the outside of the connecting pipe 84 is interposed between the flat washers 86, 86 that are fitted and fixed to the connecting rods 89a, 89b, respectively, and left and right brackets are attached to the outside of the flat washers 86, 86. 88,8
8.

Therefore, as shown in FIG. 17, the planting sled 80 is moved into the planting groove 8 in conjunction with the horizontal movement of the seedling vertical conveyance device B.
When positioned on the right side, the right side guide plate 82
The rear of the rear sled is pressed against the right groove side wall 10 and comes into close contact with the right side of the rear sled 81, but since there is a gap between the left side of the rear sled 81 and the left groove side wall 10, the left side The rear guide plate 82, that is, the rear of the guide plate 82 on the side opposite to the planting side, is pressed a distance L from the other side so as to open until it comes into contact with the left groove side wall 10, and is further pressed by a compression spring 87. The planting groove 8 is automatically pressed against the groove side wall 10.
Even if the width of the planting sled 80 is narrower than that of
By controlling the position of the planting sled 80 to be unevenly distributed on one side of the groove side wall 10 while advancing, the planting position of the seedlings can always be secured at a constant position on the groove side wall.

At the rear of the front sled 79, a pair of left and right moving rods 90, 90 movable in the front-back direction are arranged, and the protruding ends of the moving rods 90, 90 that protrude into the rear sled 81 connect to connecting rods installed laterally. 91, and left and right seedling extrusion rods 92 are fixed to both left and right ends of this connecting rod 91, respectively. A seedling extrusion plate 93 is fixed to each end of the seedling extrusion rod 92, which is branched into two upper and lower stages. It is tilted to face the seedling dropping position Z of the seedling planting device C installed in the rear sled 91.

Further, the base end of a swinging arm 96 is rotatably supported on a vertical shaft 94 fixed to the center of the front side of the rear sled 81, and a bearing boss 97 fixed to the rear end of this swinging arm 96 has a By supporting the planter wheel 95, which is composed of a lower small-diameter planter wheel 98 and an upper large-diameter planter wheel 99, which are divided and formed so as to rotate independently, the planter wheel 95 can be moved left and right around the vertical axis 94. It is provided so that it can be moved between the seedling dropping positions. When this planter wheel 95 is divided into upper and lower parts so that the small-diameter planter wheel 98 and the large-diameter planter wheel 99 rotate exceptionally as in the embodiment, the upper and lower planter wheels rotate in contact with the groove side wall 10. There is an advantage that the circumferential speeds can be matched.

Further, a switching rod 100 is installed so as to be swingable from side to side by a fulcrum shaft 101 in the front-rear direction fixed to the center of the front side of the rear sled 81, and a U formed above the switching rod is installed.
The mold part is fitted into both side walls 43, 43 of the vertical seedling transport device B which can be moved laterally in the left and right direction, and the switching rod 100
By connecting the central part of the planter wheel 95 with a tension spring 102, the switching rod 100 moves integrally with both side walls 43, 43 as the vertical seedling transport device B moves from side to side. hand,
The planter wheel 95, which is connected to the switching rod 100 via a tension spring 102, has a fulcrum shaft 101.
The center position can be switched and fixed to the left and right by the tension spring 102 that moves beyond the position.

Each seedling extrusion board 93 installed on the planting sled 80 is
It is designed to be driven intermittently by a drive mechanism 115 shown in FIG. That is, front and rear reinforcing frames 103, 103 that are connected laterally are fixed between the left and right planting frames 13, 13, and this front reinforcing frame 103 is attached to the intermediate shaft 22. A swing link 104 is provided to swing intermittently around a fulcrum shaft 105 as a result of the rotation of the eccentric cam 28, which is driven by the eccentric cam 28. The fixed swing link 106 and swing link 107 are the fulcrum shaft 10
The swing link 106 and the swing link 104 are pivotally connected by a connecting rod 109.

Furthermore, inside the front sled 79 are left and right moving rods 9.
A movable element 110 that connects and fixes between 0 and 90 is provided, and a swing link 112 whose tip is fitted into a groove of this movable element 110 is rotated around a fulcrum shaft 111 provided in the front sled 79. The swing link 112 and the swing link 107 are pivotally connected by a connecting rod 113, and a tension spring 11 is provided between the swing link 112 and the front sled 79.
4, the seedling extrusion plate 93 is regulated to the retracted position (solid line position in Fig. 22), and the swing link 104 in contact with the rotating eccentric cam 28 becomes the fulcrum shaft. 105 as the center, this vibration is transmitted to the seedling push-out board 93, and the seedling push-out board 93 pushes out the seedlings at the seedling drop position Z toward the planter wheel 95 that rotates in contact with the groove side wall 10. The seedlings 39 pressed against the groove side wall 10 by the planter wheel 95 are fixed to the planting side groove side wall 10 by having their roots covered by a soil covering device (not shown).

Further, on the bottom plate of the rear sled 81, a groove forming section 1 is provided that forms a transplant groove 119 deeper than the groove bottom surface 9 on both left and right sides.
17, 117 are provided, and a central bottom plate 118 is provided which is higher than the groove bottom surface 9 by an amount T, so that the seedlings can be stably and reliably placed in the transplant groove 119 formed on the bottom surface 9 as the rear sled 81 advances. It can be fixed, and the center bottom plate 118 can be fixed to the groove bottom surface 9.
Using the space formed between the transplant groove 119
The escape of mud during formation can be made extremely good. Further, below the seedling dropping position Y of the vertical seedling transport device B, there is a guide tube 116 fixed to the rear sled 81 side.
is provided, so that the seedlings 39 falling from the transport end of the vertical seedling transport device B fall via the guide tube 116 to a seedling drop position Z within the rear sled 81.

In the transplanting machine according to the present invention configured as described above, the vertical seedlings 39 supplied to the seedling supply space H in the rotating cylinder 33 are transferred to the seedling holder by the rotating cylinder 33 that rotates intermittently around the vertical axis 32. The seedlings are transferred to No. 29 seedling transfer position X. The vertical seedlings 39 transferred to the seedling transfer position The seedlings are held between the rear seedling conveying belt 40 and the front auxiliary seedling conveying belt 41 and passed through the seedling drop position Y of the vertical seedling conveying device B, and are then planted. The seedling falls to the seedling drop position Z of attachment device C. The seedlings 39 that have fallen into the seedling planting device C are pushed out between the groove side wall 10 and the planter wheel 95 that is freely rotating in contact with the groove side wall 10 by the seedling pushing plate 93 that swings back and forth. After that, the outer periphery of the planter wheel 95 presses against the groove side wall 10, and the roots are stably established on the transplant groove 119, and then covered with soil.

[Effect of idea]

As described above, the present invention has a plurality of vertical spaces for inserting seedlings at appropriate intervals around the periphery, and rotates around a vertical axis to move the seedlings in an upright position in the vertical spaces to a seedling transfer position. It consists of a seedling feeding device that intermittently transfers the seedlings to the seedling feeding device, and a seedling vertical conveying device that transfers the seedlings at the seedling transfer position of the seedling feeding device downward along the seedling body direction in an upright position. The vertical conveyance device is
a vertical conveyance belt facing the seedling transfer position of the seedling supply device; a seedling pushing roller that presses the seedlings at the seedling transfer position of the seedling supply device against the vertical conveyance belt while maintaining an upright position; and an auxiliary vertical conveyance belt located below the seedling pushing roller and facing the conveying belt, and a seedling transfer position where the seedling pushing roller moves the seedlings in the vertical space to face the vertical conveying belt. Equipped with a swing drive mechanism that swings intermittently between a standby position that allows the seedlings to be transferred to the vertical transport belt and a pressing position that presses the seedlings against the vertical conveyor belt. The swinging angle of the swinging seedling pushing roller can be reduced. Therefore, the operating time of the seedling pushing rollers that cooperate with the vertical conveyor belt can be extended, and the seedlings in an upright position are pressed against the vertical conveyor belt while being in an upright position, and are orderly transferred to the planting machine in that position. be able to. As a result, there was no breakage of the seedlings,
It is now possible to plant with certainty.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view showing the whole, Fig. 2 is a plan view of Fig. 1,
Fig. 3 is an enlarged plan view of the seedling feeding device, Fig. 4 is a side sectional view taken along line M-N in Fig. 3, showing an enlarged view of the seedling feeding device and the vertical seedling conveying device, and Fig. 5 is an enlarged plan view of the seedling feeding device and the vertical seedling conveying device. FIG. 6 is an enlarged rear view, FIG. 6 is a plan view of FIG. 5, FIG. 7 is an enlarged plan view showing the main parts of FIG. FIG. 10 is a front view showing the main parts of FIG. 9; FIG. 11 is an explanatory diagram showing left and right movement of the seedling planting device and the vertical seedling conveying device; FIG. 12 is an explanatory diagram showing the movement of the eleventh side walls, FIGS. 13 and 14 are explanatory diagrams of the action of the locking arm, in which FIG. 13 is a side view, FIG. 14 is a plan view, and FIG. FIG. 16 is an enlarged plan view of the seedling holder, FIG. 16 is an enlarged side view of the seedling planting device, FIG. 17 is an enlarged plan view of the seedling planting device, and FIG. 18 is an enlarged plan view of the seedling planting device. FIG. 19 is an enlarged rear view of the planting device, FIG. 19 is an enlarged side view of the swing arm, FIG. 20 is an enlarged plan view of the planter wheel, and FIG. 21 is a cross-sectional view of the planting groove. The explanatory diagram, FIG. 22, is an enlarged side view showing the drive device for the seedling extrusion plate. A... Seedling supply device, B... Seedling vertical transport device, X...
...Seedling transfer position, Z...Seedling dropping position, 32...Vertical axis, 42...Seedling pushing roller, 40...Vertical conveyance belt, 41...Auxiliary vertical conveyance belt.

Claims (1)

[Scope of utility model registration request] A seedling feeding device having a plurality of vertical spaces for seedling insertion at appropriate intervals around the periphery, and rotating around a vertical axis to intermittently transfer seedlings in an upright position in the vertical spaces to a seedling transfer position. and a seedling vertical conveyance device that successively conveys the seedlings at the seedling transfer position of the seedling supply device in an upright position downward along the seedling direction, and the seedling vertical conveyance device a vertical conveyance belt that faces the seedling transfer position of the seedling feeding device; a seedling pushing roller that presses the seedlings at the seedling passing position of the seedling feeding device onto the vertical conveying belt while maintaining an upright position; and an auxiliary vertical conveyance belt located below and facing the vertical conveyance belt, and the seedling pushing roller transfers the seedlings in the vertical space to a seedling transfer position facing the vertical conveyance belt. What is claimed is: 1. A vertical seedling conveying device for a transplanter, comprising a swinging drive mechanism that swings intermittently between a standby position where the seedlings are allowed to move and a pressing position where the seedlings are pressed against a vertical transport belt.