JPH0832202B2 - Vegetable transplanter seedling stand - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention holds seedlings of vegetables such as cabbage and Chinese cabbage, and seedlings of a vegetable transplanter for appropriately supplying the seedlings to the position of the seedling take-out port one by one. Regarding mounting table.

[Prior Art] Seedlings of vegetables cultivated in a seedling raising device in which vertical and horizontal seedling raising pots made of materials such as pulp and natural fibers that corrode in soil are divided into pots and transplanted to the field. The seedling mounting table of the vegetable transplanter is adjacent to the moving table, which moves the seedlings mounted thereon while reciprocating left and right and intermittently transferring the mounted seedlings in a predetermined direction in synchronization with the reciprocating operation. It consists of a pedestal that is fixed to the body of the transplanter and has a seedling take-out port formed in the center, and the seedling in the front row in the seedling feeding direction located on the pedestal is reciprocated by the moving table. Will be supplied to the seedling take-out port sequentially.

The above-mentioned conventional seedling mounting table is a pot in which metal wire rods such as piano wires are vertically arranged side by side in a comb shape in order to prevent the seedlings from dropping from the receiving table when vertically feeding the seedlings to the receiving table side. The holder was provided at the rear end of the moving table. At the time of seedling division, the pair of transplanting claws of the transplanting device are inserted into the seedling take-out port after passing through the space between the wire rods of the pot holder.

[Problems to be Solved by the Invention] For the above-mentioned reason, since each wire rod of the pot holder cannot be widened and is formed thinly, the wire rod bites into the pot portion of the seedling during the vertical feeding, so that In some cases, there was a bearing on the feed and the leaves pressed against the wire were damaged. Also, when the seedlings supplied to the seedling take-out port are divided into 1 strain by the transplanting nail and scraped, this pot holder acts in the direction of hindering the scraping operation, and the seedlings cannot be divided into 1 strain well. There was an occasion.

[Means for Solving the Problems] In order to solve the above problems, the present invention has the following configuration.

That is, the seedling mounting table of the vegetable transplanting machine according to the present invention is provided with a moving table for placing vegetable seedlings and reciprocating left and right, and being fixed to the machine of the transplanting machine adjacent to the moving table, A pedestal in which a seedling take-out port is formed, a seedling feeding device that transfers seedlings on the moving table toward the pedestal when the moving table is located at the end of the reciprocating stroke, and the pedestal when moving upward A vertically movable stopper for restricting the deviation of the seedlings from the seedling take-out port, and an upward moving means for moving the stopper upward when the moving base is located at the end of the reciprocating stroke. It has a feature.

[Working] When the mobile stand is located at the end of its reciprocating stroke, the seedling feeding device transfers the seedlings on the mobile stand toward the receiving stand. At this time, the stopper moves upward and the seedling feeding direction becomes the highest. Since the seedlings in the front row are received and supported, the scraping operation of the seedlings by the transplanted nails is not hindered, and the seedlings can be divided well. In addition, since the stopper does not cut into the soil of the seedlings, the seedlings can be laterally fed properly.

[Embodiment] FIGS. 1 to 4 show an embodiment of the present invention.

In this vegetable transplanter 1, a main mission case 3 is arranged at the rear of an engine 2 provided at the front end of the machine body, and front wheels are provided at the tips of rotating cylinders 5, 5 projecting from the left and right sides of the mission case. The transmission cases 6 and 6 are provided obliquely rearward and downward, and the front wheels 7 and 7 as propelling wheels are axially supported at the lower end of the front wheel transmission case. The left and right front wheels can be moved up and down in cooperation with each other by an elevating device for adjusting the planting depth.

A front transmission frame 10 having transmission means inside is extended and fixedly connected to one side of the rear portion (left side in the illustrated example) of the main mission case 3, and a transplant portion mission case 11 is provided at the rear end thereof. Has been. A transplant clutch, a gear transmission, etc. are provided in the transplant section mission case 11, and the cam shaft 12 protruding from the case is provided.
A digging device 30, a soil covering device 31, and a seedling feeding device which will be described later.
A cam for driving the 38 is attached. Further, a rear transmission frame 14 that is transmitted from the transplantation section mission case 11 to a transplantation device 13 described later extends rearward. A support pipe 15 is fixed rearward and upward to an intermediate portion of the rear transmission frame 14, and an operation box 16 is provided at an upper end portion thereof. A control handle 17 and various control levers described later are attached to the control box 16.

A rear wheel support shaft 20 is laterally provided below the cam shaft 12, and rear wheel support arms 22 and 2 attached to both ends of the shaft are provided.
Left and right rear wheels 23, 23 are pivotally supported at the lower end of 2. These rear wheels 23, 23 are also designed to move up and down in association with the front wheels 7, 7. A hole digging device 30 and a soil covering device are provided at the center of the rear wheel support shaft 26.
31 is installed.

The lifting device for the machine body is a hydraulic type, and a hydraulic pump 50 is integrally provided at the rear of the main mission case 3, and a drive hydraulic cylinder 52 and its hydraulic valve 53 are provided behind it. Left and right horizontal balance rods 55 are integrally provided at the rear end of the hydraulic cylinder 52, and left and right front wheel connecting rods 56 and rear wheel connecting rods 57 are attached to both ends of the balance rod. A spring is provided on the rear wheel connecting rod 57 so that the rear wheel 23 can freely move up and down within a certain range. This lifting device is a planting depth control device explained below.
Controlled by 60.

In the planting depth control device 60, a grounding body 63 is attached to a support plate 62 projecting forward from a rotating shaft 61 located above the rear wheel support shaft 20, and a vertical member 66 integrated with the grounding body. The tip portion and the spool 53a of the hydraulic valve are connected by a connecting rod 67. The grounding body 63 includes a middle plate portion 63a extending rearward from the base portion and side plate portions 63b and 63b provided on both sides of the middle plate portion, and has a shape surrounding the top of the ridge 205.

At the time of work, the grounding body 63 advances while leveling and shaping the top of the ridge 205, and vertical movement according to the height change of the ridge is transmitted to the spool 53a of the hydraulic valve via the connecting rod 67. That is, the grounding body 63 has a role as a leveling tool for leveling and shaping the top of the ridge and a role as a sensor for detecting the height of the ridge. When the ridges rise and the rear part of the grounding body 63 moves upward, the spool 53a is moved through the arm 66 and the rod 67.
Is pushed in, and the hydraulic valve 53 is switched in a direction to extend the hydraulic cylinder 52. When the hydraulic cylinder extends and the balance rod 55 moves rearward, the rotary cylinders 5, 5 and the rear wheel support rods are attached via the front wheel connecting rods 56, 56 and the rear wheel connecting rods 57, 57 attached thereto. 26 is rotated, and the front wheels 7 and 7 and the rear wheels 28 and 28 are simultaneously lowered to lift the body.
On the contrary, when the ridges are lowered and the rear part of the grounding body 63 moves downward, the body is lowered. In this way, by appropriately elevating and lowering the machine body according to the height change of the ridges by the action of the planting depth control device 60, the planting working unit is kept at a constant height from the field scene, and the planting depth Can be kept constant. In addition,
The planting depth is adjusted by the planting depth adjusting lever 68.

On the upper part of the machine, a seedling table consisting of a moving table 33 and a receiving table 34.
35 is provided with a slight inclination so that the front part is on the upper side. The movable table 33 is formed of a bottom plate 36 and left and right side plates 37, 37, and is supported by front and rear rails 39, 40 so as to be slidable in the left and right directions. The bottom plate 36 is formed with an opening 36a, in which a pair of front and rear rolls 38a, 38b is provided with a seedling feeding belt 38c.
A stretched seedling feeding device 38 is provided. The side plates 37, 37 extend rearward of the bottom plate 36, and a brush 42 formed by implanting bristles between the rear ends of both side plates is attached. On the other hand, the pedestal 34 is provided integrally with the rear rail 40 and is provided adjacent to the rear end portion of the bottom plate 36 of the movable table 33, and the extension 37 of the side plate is provided.
It is located below a, 37a. The horizontal width of the cradle 34 is the movable base 3
Approximately twice the left and right width of 3 and at the center of the pedestal 34 in the left and right direction
3 is formed. The seedling take-out port is provided with an opening / closing body 44 that opens and closes to receive and not receive seedlings. As shown in FIGS. 5 (a) and 5 (b), the opening / closing body 44 is axially supported by a shaft 44a provided at the lower portion of the pedestal 34, and a striking portion 44b is formed at the protruding end of the shaft. A pair of stopper devices 45, 45 are provided on both sides of the seedling take-out port 43. The stopper device 45 has a plate-like stopper plate 47 supported by two inner and outer levers 46, 46 ′ rotatably attached to the pedestal 34, and projects rearward at both end portions of the movable table 33. The engagement lever 48 is fixed, and this engages with the engagement portion 46a of the outer lever 46. Although the stopper plate 47 is normally positioned lower than the pedestal 34, the bar 48 pushes the engaging portion 46a of the outer lever 46 outward when the movable table 33 reaches the end portions of the left and right strokes. As a result, the levers 46, 46 'rotate and the engaging plate 47 projects above the receiving base 34. When the movable table 33 moves in the opposite direction and the engagement between the bar 48 and the engaging portion 46a is released, the stopper plate 47 returns to the original lowered position by its own weight.

As a seedling 200 for transplantation, pot 2 as shown in FIG.
A pot-shaped one is used, which is grown by a paper-made seedling raising device 201 (shown in an upside-down state) in which 01a are arranged vertically and horizontally. When the moving table 33 on which the seedlings are placed reciprocates left and right, the seedlings in the last row on the receiving table 34 are sequentially supplied to the seedling take-out port 43. At this time, the seedlings in the last row are elastically supported by the brush 42 so as not to fall from the pedestal 34. Also,
When the moving table 33 moves to the end of the left and right strokes, the seedling feeding device
The drive roll 38a of 38 is rotated by a predetermined amount in a predetermined direction,
The seedling feeding belt 38c transfers the seedlings backward by one row. At this time, in order to secure the seedling feeding, the seedling feeding belt
The movement of 38c is slightly larger than the movement of the actual seedlings. As described above, when the movable table 33 reaches the end portions of the left and right strokes, the stopper plate 47 projects above the receiving table 34 and receives the pot section 200a of the seedling sent by the seedling feeding device 38. Since the stopper plate 47 has a flat plate shape, it does not bite into or damage the pot portion and reliably receives and supports the pot portion. Further, since the stopper plate 47 receives and supports the seedling at the pot portion 200a, the leaf portion 200b is not damaged.

The transplantation device 13 has a first shaft each having a plurality of shafts, gears and the like.
The rotary case 71, the second rotary case 72, and the transplant case 73 are provided, and the transplant case 73 includes a pair of transplant nails 75 and 75 and a seedling extrusion body 7.
6 are provided. A tapping tool 77 is provided on one side of the transplant case 73 so as to correspond to the tapping portion 41b of the opening / closing body. The rear part of these transplantation devices 13 is the rear transmission case 14
It is covered by a cover 78 provided upright on the rear end of the.

The first rotating case 71 rotates counterclockwise in FIG. 1 at a predetermined speed corresponding to the rotation speed of the front wheels 7, 7, while the second rotating case 72 rotates counterclockwise (clockwise direction). Rotating at twice the speed, the implant case 73 moves vertically by drawing an elongated elliptical orbit. Since the axis of the transplant case is set so as not to rotate relative to the machine body, the transplant case 73, the transplant claws 75, 75 attached to the transplant case 73, and the seedling extrusion body 76 maintain the same posture throughout.
P in FIG. 1 represents the locus of the tip of the transplanted nail,
At the point A, the pair of transplanted nails 75, 75 divides the seedling supplied to the seedling take-out port 43 into one stock and holds it, and at the point B, the transplanted nail opens to plant pot seedlings in the field. In addition, at point C, the seedling extruding body 76 discloses a downward movement, and the seedling to be lifted while being attached to the transplanted nails 75, 75 is forcibly separated from the transplanted nail.
The seedlings are transplanted reliably. Although the opening / closing body 44 normally closes the seedling take-out port 43 and the seedlings are placed on it, the opening / closing body 4 may be pushed down when a certain force is applied to the opening / closing body 44 by the transplanting claws 75, 75. The seedling take-out port 43 is open. After the transplanted nail holds the seedling, tapping tool 77
By tapping the hitting portion 44a of the opening / closing body 44, the seedling take-out port 43 is closed again by the opening / closing body 44.

In the digging device 30, a mounting plate 84 is pivotally connected to the rear ends of an upper link 81 and a lower link 82 which are pivotally supported by upper and lower pivot shafts 81a and 82a, respectively, and a pair of inverted U-shaped members are attached to the mounting plates. A digging claw 85 whose lower end portion is sharply formed and a plate-like body 86 which is oriented at a right angle to the traveling direction in which both left and right end portions are bent slightly rearward are provided. The plate-like body 86 is fixed to the rear surface of the digging claw 85 such that the lower end is positioned higher than the lower end of the digging claw. The upper pivot shaft 81a is pivotally supported on the rear end of the grounding body support plate 62, and the lower pivot shaft 82a is mounted on the tip of an arm 88 rotatably provided around the rear wheel support shaft 20. It is pivotally supported. The upper and lower pivot shafts 81a and 82a are connected to each other by a connecting plate 89. These ground support plate 62, arm 88 and connecting plate
At 89, the pivot shaft 61 and the rear wheel support shaft 20 are used as fulcrums for the upper and lower pivot shafts.
A link mechanism having 81a and 82a as connection points is configured. Further, a spring 91 for biasing the upper link 81 upward is attached to a mounting plate 90 fixed to the rear wheel support shaft 20. 92
Is a stopper that regulates the upper limit of the operation of the upper link 81.

As a drive mechanism of the digging device 30, a cam follower 94 made of a bearing is fitted on a shaft 93 provided on the upper link, and a cam 95 is attached to a cam mounting shaft 12 facing the cam follower 94. By rotating the cam 95 in the counterclockwise direction in FIG. 3, when the cam engages with the cam follower 94, the upper link 81 is pushed down, and the digging claw 85 and the plate-like body 86 move downward to engage. When is released, the spring 91 moves upward. In addition,
Since the cam 95 has a cam surface 95a that operates to temporarily stop the digging claw 85 and the plate-shaped body 86 at the lowermost part, the digging claw 85 and the plate-shaped body 86 are put in the soil as the machine progresses. It moves in a submerged state and a transplant hole is formed in the field.

In the soil cover device 31, supporting rods 131, 131 are connected to both ends of the lower pivot shaft 82a through universal joints 130, 130, and the supporting rods project outward downward and then bend backward, and left and right at their rear ends. A pair of soil cover tools 132, 132 are supported on both sides of the ridge 205. The soil covering tool 132 has a soil covering plate 134 made of a flexible material such as synthetic resin integrally attached to the rear surface of the rear end of the support plate 133.

As a drive mechanism of the soil covering device 31, an arm 140 is provided integrally with the pivot shaft 82a, and the cam mounting shaft 1 is provided at the tip thereof.
A cam follower 142 made of a bearing is provided so as to face the cam 141 attached to 2. As the cam 141 rotates, the cam follower 142 is periodically pushed down, and the rotation of the pivot shaft 82a associated therewith is transmitted to the universal joints 130, 130. Since the bases 131a and 131a of the supporting arm rods 131 and 131 are inclined with respect to the pivot shaft 82a, when the supporting rods are driven, the left and right soil cover plates 134 and 134 are slanted from the top on the soil on the left and right sides of the transplanted seedlings. Press in the direction. The soil pressed by the soil cover plate presses the inclined side surfaces of the seedling pot portion 200a from both sides, so that the soil portion is reliably held at a predetermined position in a predetermined posture. Further, the pair of left and right soil cover plates presses the soil around the seedling so that the soil is raised upward, and sufficient soil is also provided around the pot portion 200a.

At the time of planting work, the lateral movement device of the seedling mounting table and the seedling feeding device 38,
The transplanting device 13, the digging device 30 and the soil covering device 31 operate in synchronization with each other, and the transplanting device 13 sequentially plants the seedlings on the seedling mounting table 35 in the transplanting hole formed by the digging device 30, and thereafter. The soil covering device 31 covers and suppresses the soil.

[Effects of the Invention] As described above, the seedling table of the vegetable transplanting machine according to the present invention is designed to receive and support the seedlings with the stopper only when the seedlings are vertically fed. This stopper did not get in the way when scraping with nails, and it became possible to perform good transplantation.

[Brief description of drawings]

FIG. 1 is a side view of a vegetable transplanter according to one embodiment of the present invention,
2 (a) and 2 (b) are a side view and a plan view of a planting depth control device, FIG. 3 is a side view of a digging device and a soil covering device, and FIG. 4 is a perspective view of a main part of a seedling table. 5 (a) and 5 (b) are a rear view and a bottom view of the periphery of the seedling take-out port, FIG. 6 is an explanatory view of a seedling raising device, and FIG. 7 is an explanatory view of a seedling. 1 ... Vegetable transplanter, 7 ... Front wheel, 13 ... Transplanter, 23 ...
… Rear wheel, 30 …… Hole digging device, 31 …… Soil cover device, 33 …… Movement base, 34 …… Receiving base, 35 …… Sapling mounting base, 38 …… Sapling feeding device,
43 …… Sapling extraction port, 44 …… Opening / closing body, 45 …… Stopper device,
47: Stopper, 60: Planting depth control device.

Claims (1)

[Claims] 1. A moving base on which a vegetable seedling is placed and which reciprocates left and right, and a cradle which is provided adjacent to the moving base and fixed to a body of a transplanter, and in which a seedling take-out port is formed in an appropriate position. , A seedling feeding device for transferring the seedlings on the moving table toward the receiving table when the moving table is located at the end of the reciprocating stroke, and for preventing the seedlings from deviating from the seedling take-out port of the receiving table when moving upward. A seedling mounting table for a vegetable transplanter, comprising: a vertically movable stopper that regulates the moving table; and an upward moving unit that moves the stopper upward when the moving table is located at the end of the reciprocating stroke. .